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Hard File Scanned ,.. rj: 1'-- . '0 <s -, ",. \_,..J t ,i, ;... cl;i~ :Qf Yelm 105 Yelm Avenue West -p 0 Box479 Yelm, Washington 98597 (360) 458-3244 May 6, 1996 Re: On-Street Parking prairie Heights prairie Creek parkview Huntington Green Crystal Springs Estates Dear Property Owners, In the past few months questions have risen concerning on-street parking in the above referenced subdivisions with inquiries to the Public Works Department to clarify this issue. After extensively reviewing the existing roadway conditions in these subdivisions, the City has reached the following conclusions, * Road widths of twenty four feet (24'-0") do not allow sufficient width for two driving lanes of twelve feet (12'-0") each and on-street parking * The narrow road widths will not allow for the passage of emergency vehicles such as ambulances or fire trucks if vehicles are parked on the road. * The intent at plat approval of allowing road widths in these residential subdivisions was sufficient off-street parking would be provided at individual lot. the narrow that each * Subdivisions without curbs, which have swales, rely upon these swales to provide stormwater runoff treatment as a part of the drainage requirements for each site It has been reported that severe damage to these swales is resulting from vehicles using the swales for parking. Please do not park in the swales * The City of Yelm will monitor these residential subdivisions and respond to complaints * R~t:','cled paper ,;. ~,'" " ,)1 G. - 2 , In the inte~est of safety' as well as the protectiort of the drainage swales, the City of Yelm is requesting that there be no on-street parking in the above listed residential subdivisions Your cooperation will be greatly appreciated. Thank You. If you have any questions or comments feel free to call my office at (360) 458-8499. Sincerely, rS;:f Public Works Director ~ cc. Kathy Wolf, Mayor Shelly Badger, Chief Administrative Officer Glenn Dunnam, Chief of Police City of Yelm YELM WASHINGTON 105 Yelm A venue West POBox 479 Yelm, Washington 98597 (206) 458-3244 February 18, 1995 EAR Enterprises Erling BirklandjEj Curry P.O. Box 875 Yelm, WA 98597 Dear Rocky and Ej: I have finally been able to research your letter dated October 31, 1994 requesting that Tract liB" of Prairie Heights Division 2 be removed from the open space and treated as a salable lot. Because Tract "A" of Prairie Heights Division 2 is of sufficient size to se:rve as the total open space required for Divisions 1, 2 and 3, it is appropriate to arrend the final plat of Prairie Heights Division 2. To legally amend the final plat we need the following information submitted: 1. An "arrended" final plat map for prairie Heights Division 2 with Note 2 deleted (re-number remaining notes) and Tract B shown as Lot #46, with an access off of Vancil Road. The address schedule will need to be arrended to show two Vancil Road addresses for Lot #46 (due to multi-family zoning). Please have Eddie True contact Jerry Prock, for address designation. 2. A list of present owners of record of all lots within Prairie Heights Division 2. Once we have received 'the arrended plat map and address listing, I will schedule a Public Hearing before the Planning Commission and City Council. A Hearing is required because an additional lot is requested and appropriate notice must be given to adjacent property owners and those owners of property within Prairie Heights Division 2. Upon Planning Comnission and City Council approval of the arrendment, the "arrended" final plat map will be recorded, thus creating Lot #46. Thank you for your patience in this matter, it is much appreciated. Sincerely: Srtllr A- Bu C? M-/ Shelly Q.' Badger 2) City Administrator, for the Yelm Planning Department c,.... ...... Jerry Prock, Building Official Ken Garmann, Public Works Director * Raycledpaper October 31, 1994 City of Yelm POBox 479 Yelm, WA 98597 RE. Tract "B" of Prairie Heights Div 2 When the open space requirement was reviewed by the City of Yelm it was determined that Tract "A" of Prairie Heights Div 2 was of sufficient size to serve as the total open space required fer Div 1, 2, and 3(future) EAR Enterprises is requesting that, due to the review of Open Space and the findings, Tract "B" should not become part of Tract "A" as shown on the plat and Note 2 of the plat drawing should be voided EAR Enterprises is also requesting that Tract "B" be treated as a salable lot with access remaining off of Vancil Rd SE. Thank you, 1;C~ Ej Curry~ (j EAR Enterprises General Partner EAR Enterprises General Partner PRAIRIE HEIGHTS OF' THE NEJ/. "+ ,~ it:<' .0 J ,'i .,~ . - "... A PORTION OF' THE S,"/4 AND SEI/4 CITY OF YELM ."?-2: ~ ~;'.; I 8Ao1J111[1) ..,. 1'[NCf' ilfVfrfS I ALONe 1lIOll''''' AND ..-sr I Pl."" 8CUCJ....-s I '\. ~ '-} ~ -----r ../f 113 :; a "00 :< " , I .0' ro ITHCC ~ o .. u i: tl, .... . 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'\'~ fIlOIAIf AM lIII[D rJi# C-" &oS Z.U1) ..uss ...,'11[I) o......sr s - 1I000000000T seT seT J' SlJRf"Aa ll'lASS OISIr (8CllNTSl)I "8 SCR'CS) W/f'VNO' PCR ON OF 'l[l" S rAHOAIllIS o - rOUND ~ AS HQI[lI IICR/OlIlH .. CRlO B€ARlHC OH fAST UHf OF Nf 1/' secnON JO 0;.. F'ROII 1'<(" nAl. 17tJIJ TO CPS 12 WASHlHCTOH STAll: Pf..AH( COOROIr/AII:S/SOUTH ZONf ADDRESS SCHEDULE FOR PRAIRIE HEIGHTS DIVISION 2 AlL _SSCS AAE: ._ OJRRY COURT se 'UII. WASHlHCTOH 98597 ADDRESS SCHEDUU: FOR PRAIRIE HEIGHTS DIVISION 2 AlL AO{)llfSSCS ARC .... VANCIl. looP SC lUll. WASHlHCTC/N 98597 O' (JtII &,IMr......... . J . , I I . 'D " 11 'J " JI JJ JJ J4 3J JO J' JI "'.'J ,.US "'t' 11207 1':01 "'4) 1'137 I"JJ "129 t"ZS "'7' ,.,.1 "UJ I"" "'.24 t't.JA lit.. 11202 '61. '.11e 111.)4 "lJJ "';0- 1'1'~ ',:09 ":~U t"." "'" "U, '11'1 16117 "'lJ "II, '''I) ""' I"" "I'UI ",- ""Do I,;U'I lUX' 111M AlL AOORfSses ARC: .._ PRAJRIf HEIGHTS smaT se >'COl. WAS><IHCTON 98597 ADDRess SCHEDULE FOR PIUJRIE HEIGHTS DH7SION D' (JII tINIT MMR'R '0' Q1t lINT Jt N2d "'''' " "'OJ It,,,, .. lun 'U17 II ""0 '.111 " lUll '11f' " "'1. '~11' .. IllOJ ,.- 'I '''22 IIIZ_ .j ,.no IUD .. ",,. "',)1 .. 11111 "ZJO .ll!. ~ lUC)ll ., "1<41 1'"44 Z1 _ 1611' Jfi220 71 ;rni "12' IJ 16240 16142 .. IU"" tl231 " "us 1612J .. 162" US1'S l' "101 "," 11 "1411 r"l. 19 1611' t,u7 JO I~'" 14511) 01 All ADDRfsses ARC. .... VANCIl. "OAD SC 'l[l". WAS><INCTC/N 985~7 E. TRUE & ASSOC lJJID SURVEYVIC po. BOX _ YnJI. .. JlSHlNCTOH 9lI:i9? (206) '58-2894 I'AGf TW'" OF 9236/ " J> - ST ATE OF WASHINGTON DEPARTMENT OF ECOLOGY Mail Stop PV-77 . Olympia, Washington 98504-8777 . -. April 29, 1993 Kathryn M Wolf City of Yelm POBox 479 Yelm VIA 98597 Re 63 lot residential subdivision with proposed roadways and infrastructures proposed by EAR Enterprises Dear Ms Wolf Thank you for the opportunity to comment on the determination of nonsignificance for the above referenced project We reviewed the environmental checklist and have the following comments Water Ouality 1 Erosion control measures should be in place prior to any clearing, grading, or construction These control measures should be effective to prevent soil from being carried into surface water by stormwater runoff Sand, silt, and soil will damage aquatic habitat and are considered pollutants Causing or allowing pollutants to enter state,waters carries a maximum penalty of $10,000 per day 2 After completion of this project, stormwater runoff will likely contain increased levels of grease, oils, sediment, and other debris Appropriate source controls, such as good housekeeping, should be used to prevent these substances from entering stormwater Treatment devices should also be used to further reduce polluted runoff 3 The owner of a construction site which disturbs five acres or more of total land area, and which has or will have a discharge of storm water to a surface water or to a storm sewer, must apply for coverage under Ecology's Baseline General Permit for Storm Water Discharges Associated with Industrial Activities Owners of sites where less than five acres of total land area will be disturbed must also apply if the construction activity is part of a larger plan of development or sale in which more than five acres will eventually be disturbed Discharge of storm water from such sites without a permit is illegal and subject to enforcement action by the Department of Ecology Application must be made at least ten days prior to commencement of the construction activities A storm water permit application form, referred to as a Notice of Intent, can be obtained by ~al1ing (206) 438-7034 ~3 o <l. q v '~~~--..,:"t: II ' ' ,. \ __ ..., .. t Kathryn M Wolf t I ! Apriq~J2& .s 19J9B 1\\j ;Page 2 -,'/\7 - i . ~,J,,- I ! ( ~;-';'<<''.:l~--. 1,1 -t.I ... -:._.....Q~~,~ ."IU,.lOj~__ Water Resources The proponent is responsible for inspecting the site to determine the location of all existing wells Any unused wells must be properly abandoned and abandonment reports submitted to Ecology as described in WAC 173-160-415 This includes resource protection wells and any dewatering wells installed during the construction phase of the project If you have any questions regarding the Water Quality comments, please contact Bill Young in our Southwest Regional Office at 586-5551 If you have any questions regarding the Water Resource comments, please contact Jill VanHu1le in our Southwest Regional Office at 586-5560 Sincerely, ! '-__\. 't-- ./ .. . 0 (' .J ,\.Jl'o.A'~ J~ Patricia L Crumley ~ Environmental Review Section PLC 2572 cc Jill VanHulle, SWRO Sarah Barrie, SWRO u '-'~ I ./1 I ~;---~ pr:;''-~IVED APR 1 6 1993 /~)--, L\ -.~ 1<..< I '-',/" - --- , I I i DETERMINATION OF ~ONSIGNIFICANCE DE PART ME NT llf ECOLOGi' ENVIRONMENTAL REViE , 63 Lot Residential Subdivision with proposed Description of proposal - - roadways and infrastructures. Proponent E.A.R. Enter~rises Location of proposal, including stree: acdress, -' any Vancil Road S.E.. South of Yelm Ave.. Yelm. WA. ~ead agency City of Yelm I ~he leac agency for th1S ~roposal has determined :2a: 1t coes ~~t have _ pro b a b 1 e s i g n i f i can tad v e r s e ! 1 11 pac ton <: 2 e en vir 0 nm e n -: ~ r'1 e~vi~onmental imoact s~~~ement :(~:S) lS not ~equ~~eQ unce~ HeW _ ') ') 1 (' ('. ') 0 ( ? ' ( c) - T' ; - , "",... . <::: ' ,J as.'" ~ ri c. a T' -'- "',.. ,... '" '" "" c~' a ,... ',... '" D I "'.;. '" d.- _...; '- _......... u ..... _ , n _.7) Q '-"..... 1 ..... .1. 0 n, ... Co...... ....... .... l.. '-' .r. _ _ ... '-' ,"1 .:.. "- ..... ..4 .. '-' L.. '-' . ., _, _ i." ,., - , - _ - enV1I'Onmentai cneckl1S'L. a:1C1 Olner i 1:11:0rma<: lon on .: 11e ',vl::1 <:ne lead. , agency This ~nformat_on _s avallable to the puo i: on request ~ inere ~S no comme~t :eriod for tj_s DNS i]j This D~S lS issued ur1cer 197-IL-:.L)(3) act on thIS proposal :or 1 ~ d~v<::: f-~m must De submitted DV - MaY~3. 119-93- _H I I ?esponsible official Kathryn M. Wolf I tne ead age~cy ~_ll not tne aate below Comments '20 sit 1 on/ t l l. 1 e Mayor Pro-Tempore ?hone (206) 458-~244 Address PO BOX 479 YELM WA gR"ig7 ~4, In.:Jt4/ /1~/ iJ~ 0-" Date Aoril 15. 1993 Signature (Optional) Y~u ma; appeal this ~=terminat_o~ ~o (name\ at \.locatlon) no later than by (method) You should be prepared to make speciflc factual objectlons :ontact to read or as~ accut the procedures for SE?A appeals u There 1S no agency appeal F(i~~ @(f"~ _/ (1:" f I ~ L. L- :.... ,- ,-,,,," . r T\SE?ADNS FRM \ ~ Proponent (c) Address Phone 2 Representative Address Phone ENVIRONMENTAL CHECKLIST Town of Yelm Apr I I 8, 1993 E .A. R. ENTERPR I SES P. O. BOX 875 YELM, WA 98597 (206) 458-2894 HOWARD GODAT & ASSOCIATES, INC. 2708 Westmoor Court Olympia, WA 98502 (206) 943-1599 3 Property Address or Location (e) Vancl I Road, S.E. SW 1/4 and SE 1/4 of the N 1/4 of Sec. 30, T18N, R2E, W.M. 5 Tax Parcel ~ (g) 227-30-140501, 227-30-140600, 227-31-30100 and 227-30-130600 1/4 S/T/R (f) 7 6 Total Acres 16 Acres, more or less 8 Permit Type Zoning Preliminary Plat Approval Residential Multi-Family (R-2) 10 Water Body Shorel ine Environment N/A N/A 11 Brief Description of the Proposal and Project Name 63 lot residential subdivision with the proposed roadways and infrastructures. The plat Is to be called Prairie Heights. 12 Estimated Completion Date Surrune r, 1993 13 List of al I Permits, Licenses or Government Approvals required for the Proposal (federal, state and Local Including Rezones) Clearing, grading, utI I Itles, building and right-of-way access. 14 Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain There are no plans for additions of this project beyond the Division One and Division Two boundaries. 15 Do you know of any plans by others which may affect the property covered by your proposal? If yes, explain There are no known plans by others that wll I affect this project. 16 Proposed t i m I ng or schedu I e (i nc Iud i ng phas i ng, if app I i cab Ie Division One completed by Surruner, 1993. Division Two completed by Fal I, 1994. 1 17 List any environmental Information you know about that has been prepared, or wi I I be prepared, directly related to this proposal The only known environmental Information that has been prepared for this area Is that this project lies within the aquifer sensitive area as mapped by Thurston County To be Completed by Appl icant Earth a General description of the site (circle one) Flat, rol I lng, hi I Iy, steep slopes, mountainous, other Roiling b What is the steepest slope on the site (approximate percent slope) The steepest slope on this site Is approximately 14%. located In the southwest corner of Division Two. c What general types of soi Is are found on the site (for example, clay, sand, gravel. peat, muck)? If you know the classification of agricultural sol Is, specify them and note any prime farmland There are two sol I types on this project fine sand; Spanaway gravelly sandy loam. d Are there surface Indications or history of unstable soi Is in the Immediate vicinity? If so, describe N I sQua I I y loamy NO e Describe the purpose, type and approximate quantities of Any fi I ling or grading proposed Indicate source of fi I I Grading of roadway. There wi II be approximately 3,500 C.Y. of material to be graded on this site. f Could erosion occur as a result of clearing, construction or use? If so, generally describe Ralnfal I runoff could cause erosion to unprotected areas. The site shal I have erosion measures In place as per the Drainage Design and Erosion Control Manual for Thurston County Region Washington g About what percent of the site wi I I be covered with impervious surfaces after project construction (for example, asphalt or bu i I dings) ? Approximately 45% of the site wi I I be Impervious with roadways and houses. h Proposed measures to reduce or control erosion, or other I mpacts to the earth, I f any On-site erosion control fencing. siltation pond Installation of storm drain system and retention piping as per the Drainage Design and Erosion Control Manual for Thurston Region Washington. 2 2 Air a What types of emissions to the air would result from the proposal (I e , dust, automobile, odors, Industrial wood smoke) during construction and when the project Is completed? If any, generally describe and give approximate quantities if known Dust during construction. exhaust emission from construction equipment. Increased auto emission from completed project. b Are there off-site sources of emissions or odor that may affect your proposal? If so, generally describe Two roadways; State Route 507 and Vancil Road. c Proposed measures to reduce or control emissions or other Impacts to air, if any Dust Control Measures during construction. Standard Emission control devices for project site. 3 Water Surface 1) Is there any surface water body on or in the immediate !cinity of the site (including year-round and seasonal streams, sa I twa ter, lakes, ponds, wet lands)? I f yes, descr I be type and provide names If appropriate, state what stream or river it flows into There are no surface waters on or In the Immediate area of this site. 2) Wi II the project require any work over, In, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach avai lable plans NO 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and Indicate the area of the site which would be affected Indicate the source of fill material NONE 4) Ni I I the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known NO 5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan NO 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge NO 3 b Ground 1) WI I I ground water be withdrawn or wi I I water be discharged to ground water? GIve general descrIption, purpose, and approximate quantities if known stormwater runoff wi I I be Infiltrated Into the native sol Is of this site. 2) Describe waste material that wi I I be discharged into the ground from septic tanks of other sources, if any (for example domestic sewage, industrial waste containing the fol lowing chemicals agricultural) Describe the size of the system, the number of such systems, the number of houses to be served (if appl icable), or the number of animals or humans the system(s) are expected to serve Proposal wi (I be served by proposed S.T.E.P. sewer system. c Water Runoff (including stormwater) 1) Describe the source of runoff (Including storm water) and .j of collection and disposal, If any (include Quantities, If ".din) Where will this water flow? Will this water flow into other waters? I f so, descr lbe Stormwater runoff from the proposed roadways wll I be col (ected In roadside swales which wi I I serve as a treatment faci I ity as wel I as a disposal method. 2) Could waste materials enter ground or surface waters? If so, generally describe , Untreated storm water can carry pollutants d Proposed measures to reduce or control surface, ground, and runoff water impacts, if any Design of drainage system to best management practices. Installation of bloflltratlon swales. The stormwater control and treatment shall be designed for the drainage design and erosion control manual for the Thurston Region. 4 Plants a Check or circle types of vegetation found on the site deciduous tree; maple, other -X evergreen tree, fir, cedar, pine, other shrubs --- X- grass X- pasture crop or grain --- wet sol I plants, cattai \, buttercup, bulrush, skunk cabbage, orner water plants, water lily, eelgrass, mi Ifoi I, other === other types of vegetation b What kind and amount of vegetation wi I I be removed or altered? Only that what Is necessary for the site Improvements and uti I Ity construction. c List threatened or endangered species known to be on or near the site NONE KNOWN 4 d Proposed landscaping, use of native plants, or other measurers to preserve or enhance vegetation on the site, If any- Finish site to be landscaped and retention of natural vegetation where possible. 5 Animals a ~Ircle any birds and animals which have been observed on or near the site or are known to be on or near the site birds hawk, heron, eagle, songbirds, other Robins Blue Jays. Wren. ChicKadee. Crow mammals deer, bear, elk, beaver, other rabbit fish bass, salmon, trout, herring, shellfish, b List any threatened or endangered species known to be on or near the sIte NONE KNOWN c Is the site part of a migratIon route? I~ so, explain NO d Proposed measures to preserve or enhance wi ldl ife, If any Retain useable native vegetation where possible. ~ Energy and Natural Resources a What kinds of energy (electric, natural gas, 01 I, wood stove, solar) wi 1 I be used to meet the completed project's energy needs? Describe whether it wi I I be used for heating, manufacturing, etc Electric and/or gas heating and electric lighting. b Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe NO c What kinds of energy conservation features are Included In the plans of this proposal? List other proposed measures to reduce or control energy impacts, If any Energy Efficient construction to state and N.W Energy Code. 7. Environmental Health a Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spi I I, or hazardous waste, that could occur as a result of this proposal? If so, describe NQNE KNOWN 1) Describe special emergency services that might be required NONE 5 2) Proposed measures to reduce or control environmental hea I th hazards, if any AI I lots shal I be connected to the Town's S.T.E.P. sewer system. Domestic water service shal I be provided by the Town of Yelm. AI I existing wet Is on this site shal I be abandoned. b Noise 1) What types and levels of noise exist In the area that may affect your project (for example, traffic, equipment, operations) Existing traffic noises from State Route 507 and Vanc I I Road. 2) What types and levels of noise wi I I be created by or associated with the project on a short- or long-term basis (for example, traffic, construction, operations, other)? Indicate what hours noise would come from the site. Short term noise during construction phase - 7:00 A.M. to 9:00 P.M. Long term Increased auto noise from completed project. 3) Proposed measures to reduce or control noise impacts, if any Retain the native vegetation wherever possible. 8 Land and Shorel ine Use a What Is the current use of the site and adjacent properties? This site and the surrounding properties are currently residential housing and farm land. b Has the site been used for agriculture? If so, describe Yes It has. c Describe any structures on the site Yes there are existing structures on this site. They Include houses. mobile homes. barns and carports. d Wi II any structures be demo I ished? If so, what? Yes. al I structures are to be demo I Ished or removed from this site. e What Is the current zoning classification of the site? Residential multi-family (R-2). f What Is the current comprehensive plan designation of the site? Residential multi-family (R-2). 9 If appl icable, what is the current Shorel ine Master Program designation of the site? N/A 6 h Has any part of the site been classified as "environmentallY sensitive"? If so, specify Yes. this site I les within an aQuifer sensitive area as mapped by Thurston County. I Approximately how many people would reside or work in the completed project? Assuming 6.2 residences per lot. there wi I I be approximatelY 391 residents when this project Is completed for the full 63 lots. J Approximately how many people would the completed project displace? Approximately 9 people. k Proposed measures to avoid or reduce displacement Impacts, If any NONE I Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, If any. Comply with Zoning ReQuirements Housing a Approximately how many units would be provided, if any? Indicate whether high, middle, or low-Income housing. 154 low to middle Income housing units. b Approximately how many units, if any, would be eliminated Indicate whether high, middle or low-income housing NONE c Proposed measures to reduce or control housing impacts, if any NONE 10 Aesthetics a What Is the tal lest height of any proposed structure(s), not Including antennae, what is the principal exterior building material(s) proposed? 25' height. LP siding. b What views in the immediate vicinity would be altered or obstructed? Change from native undeveloped land to a residential subdivision. c Proposed measures to reduce or control aesthetic Impacts, If any Retain native vegetation where possible. 7 11 Light and Glare a What type of I ight or glare wi I I the proposal produce? What time of day would It mainly occur? Parking and Sui Idlng lighting. dusk to dawn b Could light or glare from the finished project be a safety hazard or Interfere with views? NO c What existing off-site sources of light or glare may affect your proposal? NONE d Proposed measures to reduce or control I ight and glare impacts, if any Retain native vegetation where possible. Recreation a What designated and Informal recreational opportunities are In the immediate vicinity? Golf course. City park and bike paths. b Would the proposed project displace any existing recreational uses? If so, describe NO c Proposed measures to reduce or control Impacts on recreation, includ'ing--recreatlon opportunities to be provided by the project or app I icant, I f any This project will provide approximately 6.400 square feet of open space. The existing residential structure wi I I be removed from the open space area prior to total bul Idout of this plat. Historic and Cultural Preservation a Are there any places or objects lIsted on, or proposed for, national, state, or local preservation registers known to be on or next to the site If so, generally describe NONE KNOWN b Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site NONE KNOWN c Proposed measures to reduce or control impacts, if any NONE 8 14 Transportation a Identify publ ic streets and highways serving the site, and describe the proposed access to the existing street system Show on site plans, if any Access shal I be from the Vane I I Road, S.E.. b Is site currently served by publ ic transit? If not, what Is the approximate distance to the nearest transit stop? NO c How many parking spaces would the completed project have? How many would the prOject eliminate? 308 off street spaces. none eliminated. d. WI I I the proposal require any new roads or streets or Improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether publ Ie or private) Yes. (1) The Internal roadways shall be constructed to 24 feet of paved surface. vertical curbing and concrete sidewalks on both sides of the street with the cul-de-sac having sidewalk on one side of the street only. (2) Frontage Improvements to Vancl I Road shal I be for an eventual 28 foot roadway section concrete curb, gutter and sidewalk. A minimum of 24 feet of paved roadway shal I be provided along the plat's frontage. (3) Off-site Improvements shall Include resurfacing Vane I I Road from the northerly plat boundary north to Yelm Avenue. The resurfacing shal I Include two 11 foot driving lanes and a 4 foot paved shoulder on the westerly side for pedestrIan use. e Wi I I the project use (or occur in the immediate vicinity of) water, rai I, or air transportation? If so, generally describe No. It wi I I not use water, ral I or air transportation. f How many vehicular trips per day would be generated by the completed prOject? If known, indicate when peak volumes would occur 1.232 V.T.O. Peak morning & evening. g Proposed measures to reduce or control transportation impacts, If any Construction of new roadways to serve this plat. 15 Publ ic Services a Would the prOject result in an Increased need for publ ic services (for example, fire protection, pol ice protection, health care, schools, other)? If so, generally describe Yes, Fire and Pol lee Impact due to Increased facl I Itles and population. b Proposed measures to reduce or control direct impacts on publ Ie services, if any AI I Improvements are to be constructed to al I current applicable codes 9 16 Utilities a Circle uti I Itles currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic sysrem:-other T V Cable b. Describe the uti I Itles that are proposed for the project, the uti I Ity providing the service, and the general construction activities on the site or in the Immediate vicinity which might be needed Water & sewer service by Town of Yelm. .Puget Power electric service. U.S.West phone service. Telecable of Washington. T.V. Cable. Washington Natural Gas. gas service. Pacific Disposal refuse. AI I utility services to be extended to the site by others. The above answers are true and complete to the best of my knowledge. I understand that the lead agency Is relying on them to make Its decision. SI~~tq1 (l 6.. PE... 0 oy 1993 Date Submitted 10 . .. Q -< o ~ .. ~ 'G'RAVEL DR I VE .. --......:-. -- PUlf' HOUSE -0p ~ OPEN SPACE FOR DIVISION ONE & TWO ~ 16 17 18 f'.l zz 20 23 21 II ------------------i I f GAR/ WELL lAOS ILEHM 13 \ 4 2 -l__ 4 0 10 '.l 12 11 5 July 21, 1993 Howard Godat and Associates, Inc. Steve Hatton, P.E. 2708 Westmoor Court Olympia, WA 98503 RE: PRAIRIE HEIGHTS Dear Steve: The City of Yelm's Engineering Department has reviewed the drainage and erosion control plans and the roadway for the above referenced project and has the following comments: SHEET 1 OF 26 1. Please provide the following approval block for sheets 1 - 19: APPROVED FOR CONSTRUCTION: CITY OF YELM/CITY ENGINEER DATE EXPIRATION DATE OF APPROVED PLANS: DATE 2. Please provide the following approval block for sheets 20 - 26: APPROVED FOR CONSTRUCTION: CITY OF YELM/CITY ENGINEER DATE STEP COORDINATOR EXPIRATION DATE OF APPROVED PLANS: DATE 3. Please show a temporary cul-de-sac at the end of "D" Road. SHEET 2 OF 26 4 . GENERAL NOTES (STORM DRAIN CONSTRUCTION) NOTE 4: Please change the note to read: "Once the City of Yelm has received for copies of the approved plans, a preconstruction.." 5. GENERAL NOTES (STORM DRAIN CONSTRUCTION) NOTE 5: please change the note to read: "..shall be staked by the project engineer or a licensed land surveyor." 6 . NOTE 8: Please change the note to read: with most recent edition of the MUCTD." II . . in accordance 7. GENERAL NOTES (WATERMAIN INSTALLATION) NOTE 9: Please change the note to read: "..by the project engineer or a licensed land surveyor. II 8. STEP SEWER NOTE 3: Please change tap to tape. 9. GENERAL NOTES (STREET CONSTRUCTION) NOTE 2: Please change the note to read: "..in accordance with the most current edition of .. ". 10. NOTE 3: please add a note to the effect that existing driveways shall be restored to the satisfaction of the project engineer and the City of Yelm. 11. Please add a note to the effect that existing driveways shall be restored to the satisfaction of the project engineer and the City of Yelm. SHEET 3 OF 26 12. Please extend the limits of the erosion control to elevation 342 on the west lot line of lot #13. 13. Please show the temporary cul-de-sac at the end of "D" Road - typical each sheet. SHEET 4 OF 26 14. The plan references a taper at 14+30 but the centerline stationing does not match, please review. 15. Note #2: Remove "owner's" and replace with owner. SHEET 5 OF 26 16. Please review the low point associated with the 270 foot vertical curve; it appears the low point may occur at 12+00. If this is the case, the inlet of the 10 inch pipe may have to shift north to 12+00. Please provide an inlet detail for the pipe. 17. What size of rip-rap will be used to armor the outfall of the 10 inch pipe at 10+60. 18. Please label the profile. 19. Please locate the inlet of the 10 inch pipe (10+60) on the profile. 20. The flow line for catch basin #7 is given as 342.42 yet the outfall is given as 344.24. It appears that "A" Road slopes away from Vancil Road - please review. 21. Some sort of grate shall be required for the inlet to the 10 inch pipe at station 12+14.44. 22. The centerline control for "A" Road is given as 7+45.638 yet the monument is given as 7+42.51 - please reVlew. 23. The end of the taper is referenced (North), please station the beginning of the taper. 24. Please label the profile. SHEET 6 OF 26 25. Please provide a vertical curve near station 2+00. 26. Please locate catch basin #17 on the profile. 27. please label the profile. 28. The monument stationing appears not to match the centerline stationing - please review. 29. Please provide inlet and outlet elevations for the swale that "feeds" the pond. SHEET 7 OF 26 30. The vertical curve around lot #32 appears not to meet the minimum AASHTO (American Association of State Highway Traffic Officials) horizontal radii criterion - please review. 31. Please show catch basin #12A on the profile. 32. Please label the profile. 33. Please show catch basins 9 and 10 on the profile. SHEET 8 OF 26 34. Please add a note: "Remove structures" and "Abandon well as per DOE." 35. Please label the profile. 36. Please show the temporary gravel cul-de-sac at the end of the "D" Road. 37. Please station the centerline. 38. Please provide some sort of "backstop" ln the swale behind catch basins 5 and 6. 39. Please state the size and type of material that will be used in the trench. 40. Please state what type of material will be used to line the swale section(s)? A impervious liner will not sustain plant growth within the swale section. SHEET 9 OF 26 41. Please place control elevations for the swale on the plans. Please review the rim and flow line elevations given of sheet 6. 42. Please locate and provide details for the required emergency over flow structure/scheme for the pond. SHEET 10 OF 26 43. How will the runoff be conveyed along Vancil Road (0+50 to 5+31. 64)? 44. How wide will the access points (driveways) be through the swale section(s). 45. At what angle will the 4x8 inch ,box drain be set ln relation to the sidewalk? 46. Why is there a broom finish provided for the curb section? SHEET 12 OF 26 47. Please show the conduit crossing at "B" Road. 48. Please add street lights at the following locations: A. The intersection of "A" Road and "C" Road. B. "Eyebrow" along "D" Road. 49. Please justify why an additional light is not needed along "e" Road. 50. Please re-submit the lighting calculations. 51. Please place the "call before you dig" detail away from any lighting detail(s). SHEET 13 OF 26 52. Please review hydrant locations. It appears that lot #42 will have difficulty being served by the current layout. SHEET 14 OF 26 53. Please add locate wire to the trench detail. 54. A saw cut edge shall be required for any work within the "traveled way" that in not improved by this project. 55. Please revise the details to show the swale/sidewalk section - meters and hydrants. SHEET 15 OF 26 56. The alignment of the watermain(s) shall be 5 feet north and east of centerline. Please revise the drawings to reflect this alignment. SHEET 16 OF 26 57. Please eliminate the "belly" in the 8 inch line by running the two slopes out or provide a blowoff valve at the low point of the roadway. 58. Please review all of the plan stationing based on comment #56 above. 59. Please label the profile. SHEET 17 OF 26 60. Please label the profile. SHEET 18 OF 26 61. please label the profile. 62. Please locate and label the required blowoff at the end of "A" Road. 63. Please relocate the service for lot #38 (remove from lot #37). SHEET 19 OF 26 64. Please label the profile. SHEET 20 OF 26 65. Are double service connections proposed? Are double services on alternate lot corners/lines a possibility? SHEET 21 OF 26 66. Please add locate wire to the trench detail. 67. Please provide a connection detail swale/sidewalk section. that shows the SHEET 22 OF 26 68. The STEP alignment shall be 5 feet south and west of centerline - please change all drawings. 69. Please label the profile. SHEET 23 OF 26 70. Please label the profile. SHEET 24 OF 26 7l. Please label the profile. SHEET 25 OF 26 72. Please label the profile. SHEET 26 OF 26 73. Please label the profile. DRAINAGE REPORT 74. please provide a work map. 75. Please substantiate the discharge rates utilized 1n the "RED" command ( s ) . 76. Please verify the ability to achieve "draw-down" 1n 48 hours. 77. Please discuss the drywell at catch basin 12A and provide support calculations. 78. Once the above drainage information has been supplied, a complete drainage review will be conducted. If you have any questions, please contact The City of Yelm' s Engineering Department at 458-8816. Sincerely, Mark R. Cook Assistant City Engineer cc: Steve Hatton, P.E. Howard Godat and Associates 2708 Westmoor Court SW Olympia, WA 98502 0, '0 DENNIS COCHRAN, P.E. CIVIL ENGINEER 2626 12TH CT SW OLYMPIA, WA. 98502 206-754-1495 July 1, 1993 Shelly Badger City of Yelm POB 479 Ye1m, WA 98597 RE. PRAIRIE HEIGHTS I have reviewed the submi tted plans and drainage report for' the above referenced project and have the following comments for the project engineer: SHEET 1 OF 26: 1. Please provide the following approval block for sheets 1 -19: APPROVED FOR CONSTRUCTION CITY OF YELM/CITY ENGINEER DATE EXPIRATION DATE OF APPROVED PLANS: DATE 2. Please provide the following approval block for sheets 20 - 26: APPROVED FOR CONSTRUCTION CITY OF YELM/CITY ENGINEER DATE STEP COORDINATOR DATE EXPIRATION DATE OF APPROVED PLANS: DATE 3. Please show a temporary gravel cul-de-sac at the end of "0" Road. SHEET 2 OF 26 4. GENERAL NOTES (STORM DRAIN CONSTRUCTION) NOTE 4: Please change the note to read: "Once the City of Yelm has received four copies of the approved plans, a preconstruction..." 5. GENERAL NOTES (STORM DRAIN CONSTRUCTION) NOTE 5: Please change the note to read: "..shall be staked by the project engineer or a licensed land surveyor." 6 . NOTE 8: Please change the note to read: most recent edition of the MUTCD". "..in accordance with the 7. GENERAL NOTES (WATERMAIN INSTALLATION) NOTE 9: Please change the note to read: "..by the project engineer or a licensed land surveyor." 8. STEP SEWER NOTE 3: Please change "tap" to "tape". 9. GENERAL NOTES (STREET CONSTRUCTION) NOTE 2: Please change the note to read: "..in accordance with the most current edition of..." 10. NOTE 3: Please change the note to read engineer or a licensed land surveyor". ". .staked by the project 11. Please add a note to the effect that existing driveways shall be restored to the satisfaction of the project engineer and the. City of Yelm. SHEET 3 OF 26 12. Please extend the limits of the erosion control to elevation 342 on the west lot line of lot #13. 13. Please show the temporary cul-de-sac at the end of "D" Road - typical each sheet. SHEET 4 OF' 26 14. The plan references a taper at 14+30 but the centerline stationing does not match, please review. f) ~::; ~~. ~~: ii~~~; uLLa~~..; ~r;~.,u~stil:ul:e "'dlt~*, .....dE!\;e;16p~r 6ft.:!ll 6^B~il'l adJ':'L':'vlldl rIght-ot WdY...~.. . O~er.J 16. Note #2: Remove "owner's" and replace With/developer's". r SHEET 5 OF 26 17. Please review the low point associated with the 270 foot vertical curve; it appears the low point may occur at 12+00. If this is the case, the inlet of the 10 inch pipe may have to shift north to 12+00. Please provide an inlet detail for the pipe. What size of rip7rap will be used to armor the outfall of the 10 inch pipe at 10+60. Please label the profile. Please locate the inlet of the 10 inch pipe (10+60) on the profile. The flow line for catch basin #7 is given as 342.42 yet the outfall is given as 344.24. It appears that "A" Road slopes away from Vancil Road - please review. Some sort of grate shall be required for the inlet to the 10 inch pipe at station 12+14.44. The centerline control for I'A" Road is given as 7+45.63S yet the monument is given as 7+42.51 - please review. The end of the taper is referenced (North), please station the beginning of the taper. Please label the profile. Please provide a vertical curve near station 2+00. Please locate catch basin ~17 on the profile. Please label the profile. The monument stationing appears not to match the centerline stationing - please review. Please provide inlet and outlet elevations for the swale that "feeds" the pond. The vertical curve around lot #32 appears ~ot to meet the minimum AASHTO (American Association of State Highway Traffic Officials) horizontal radii criterion - please review. Please show catch basin #12A on the profile. Please label the profile. Please show catch basins 9 and 10 on the profile. Please add a note: "Remove structures" and "Abandon well as per DOE". Please label the profile. 5 Please show the temporary gravel cul-de-sac at the end of the "D" Road. Please station the centerline. Please provide some sort of "backstop" in the swale behind catch basins 5 and 6. Please state the size and type of material that will be used in the trench. Please state what type of material will be used to line the swale section(s)? A impervious liner will not sustain plant growth within the swale section. Please place control elevations for the swale on the plans. Please review the rim and flow line elevations given of sheet 6. Please locate and provide details for the required emergency over flow structure/scheme for the pond. OF 26 How will the runoff be conveyed along Vancil Road (0+50 to 5+3l.64)? How wide will the access points (driveways) be through the swale section(s). At what angle will the 4x8 inch box drain be set in relation to the sidewalk? is there a broom finish provided for the curb section.~ Why OF 26 Please show the conduit crossing at "B" Road. Please add street lights at the following locations: A. The intersection of "A" Road and "C" Road. B. "Eyebrow" along "D" Road. Please justify why an additional light is not needed along "c" Road. Please re-submit the lighting calculations. Please place the "call before you dig" detail away from any lighting detail(s). SHEET 13 OF 26 Please review hydrant locations. It appears that lot #42 will have difficulty being served by the current layout. 26 Please add locate wire to the trench detail. A saw cut edge shall be required for any work within the "traveled way" that in not improved by this project.)( Please revise the details to show the swale/sidewalk section - meters and hydrants. OF 26 The alignment of the watermain(s) shall be 5 feet north centerline. Please revise the drawings to reflect this 26 and east of alignment. ~ ~ Please eliminate the "belly" in the 8 inch line by running the two slopes out or provide a blowoff valve at the low point of the roadway. Please review all of the plan stationing based on comment #57 above. Please label the profile. 26 Please label the profile. 26 Please label the profile. Please loca~e and label the required blowoff at the end of "A" Road. Please relocate the service for lot #38 (~emove from lot #37). 26 65 Please label the profile. EET 20 OF 26 1 j Are double service connections proposed? Are j alternate lot corners/lines a possibility? double services on 26 Please add locate wire to the trench detail. / ~ Please provide a connection detail that shows the swale/sidewalk 77 section. / SHEET 22 OF 26 ~.6 The STEP alignment please shall be 5 feet south and west of centerline - change all drawings~ Please label the profile. 26 Please label the profile. 26 Please label the profile. 26 Please label the profile. 26 Please label the profile. INAGE REPORT Please provide a work map. Please substantiate the discharge rates utilized in the "RED" command (s ) . ~ " '-.-/ .~ /'\ Please verify the ability to achieve "draw-down" in 48 hours. Please discuss the drywell at catch basin 12A and provide support calculations. Once the above drainage information has been suppliedJ a complete drainage review will be conducted. have any questions, please contact the City of Yelm at 458-8816 or Cochran, P.E. at 754-1495. KC:"r2~ Mark R. Cook City of Yelm - Assistant City Engineer . . cc: steve Hatton, F.E. Howard Godat and Associates 2708 Westmoor Court, SW O~ympia, WA 98502 ^'----- r-- CCiirty @f J{ eEm _.~._~'.....,__......." _"'''~'_n ~05 Yelm Avenue West PO Box 479 Yelm, JVashington 98597 (206) 458-3244 Date' 6<:4- 93, To E A F Ente~prises POBox 8'75 Yelm, Y-la 98597 This letter constitutes pr~liminary approval Retaln fot, YO-Ut files, From ci ty ot Yelm ' Dear Mr Bitkl~nd and Ms Ej Cu~ry, , I On May 12,-1993, the City of Yelm granted preliminary plat approval on Divlslons 1 & 2 of Prai~ie Heights Subdivision ( Approval is for 6) duplex lots providing fi6 new residential units Yelm 'pliblic water Hill ,be available to serve the 126 units E:l..tensi,on of Ilnes to service the developmen.twil1 :be the r.=>sponsi,bility of the de'veJoper . Th~ city's current sewer se.rvices bouhdary inclcides ~lanned capacity for P~airie Heights Divisions 1 r., 2 based on the ,p.reliminary plat approval However I the ci ty cannot provide, a guarantee to h(),ld existina capacity available f6r building lots more than one year after fin~i plat approval ~s per our disdusSlons a phas~d devel()pment ~ill be allowed to bUlld on lots apprdved by the Thtirston County Health Department on intellffi septlc tanks and dralnfield permlts Upon completion of the Yelm 0as~ewater Trea~ment Plant and ,Collections Llnes the ~emainder of the lots will become buildable and be connected to' the city sewer system along with lots on the interi~ septic tanks anddrainfie!ds However, at this time, the city cannot g~ai~ntee a date tor its sewer syst~m completion CI . , 1 0Ul(jrel y " ~'" . 4ttttr IJ. &lI~ Shelly A B~dqer, CAO Ci ty of Yelrn @ Recycled, paper '< ---~-~---'---'-._.- ~ HOWA~~N~~~*~~ ~~~~;~~~~S. INC. 2708 WESTMOOR COURT 0 OL YMPIA, WASHINGTON 98502 0 PHONE (206) 9163.1599 0 FAX (206) 357.6299 June 23, 1993 city of Yelm 105 Yelm Avenue, West Yelm, WA 98597 s~~.~~.~ \ l ~ (OV'& ~\U (,~ \S~~~~V\ \-S ~ d Q- ('J ~ \y <L \ <;. '\-. ~\- ,,\- ~U ~ \fc,. \--. Attn: Mr. Gene Borges RE: prairie Heights Dear Mr. Borges: Submitted for review and approval are copies of the drainage report and construction drawings for the above referenced project. Review and approval of this project at your earliest convenience is greatly appreciated. If you have any questions, please do not hesitate to contact our office. Sincerely, HOWARD GODAT INC. Kevin R. cc: E.A.R. Enterprises File #3018 STUDY REPORT DESIGN WATER SEWER STREETS /- '6 PRAIRIE HEIGHTS Drainage Report Proponent: E.A.R. Enterprises P. O. Box 875 Yelm, WA 98597 (206) 458-2894 Engineer: Steven D. Hatton, P.E. Howard Godat & Associates, Inc. 2708 Westmoor Court, S.W. Olympia, WA 98502 (206) 943-1599 Date: June 22, 1993 TABLE OF CONTENTS I FACILITY SUMMARY FORMS. II. ENGINEERS CERTIFICATE III. DRAINAGE REPORT Section 1 Section 2 Section 3 Section 4 Section 5 Section 5 Section 6 Section 7 Section 8 Section 9 - Project Description. - Existing Conditions. - Soils Report . . . . - Wells. . . . . . . . - Fuel Tanks . . . . . - Subbasin Description - 100 Year Flood Analysis. - Aesthetic Considerations - Downstream Analysis. . - Covenants, Dedications and IV. EROSION CONTROL A. B C. D. E. Construction Sequence. . Sediment Traps . . . . Site Restoration . . . Geotechnical Analysis. Inspection Sequence. v. MAINTENANCE AND OPERATION PLAN. VI. APPENDIX 3 9 10 11 11 14 14 14 14 14 14 Easements 32 33 33 33 33 33 34 A. Environmental Check List B. Fire Flow Calculations C. Street Lighting Line-Loss Calculations D. Pavement Design I'_U~ THURSTON REGION FACILITY SUMMARY FORM Complete one for each facility (detention/retention) coalescing plate filter, etc...) on the project site. Attached 8 1/2 x 11 sketch showing location of facility. Proponent's Facility Name or Identifier (eg, Pond A): Pond A Name of road or Street to Access Facility: Vancil Road Hearings Examiner Case Number: N/A Development Rev. Project NO/Bldg. Permit No.: N/A Parcel Number: 227-30-140501, 227-30-140600, 227-30-14050, 222-30-130100 and 227-30-130600. To be completed by Utility Staff Utility Facility Number Parcel Number Status, (num, 1ch) . 0, Known 1, Public, 2, Unknown; 3, Unassigned Basin and Sub-basin (num, 6ch) . . . . (2ch for basin, 2ch for sub-basin, 2ch future) Responsible jurisdiction: (alpha, lch). . (O)lympia, (C)ounty, (T)umwater, (L)acey Part l Project Name and Proponent Project Name: Prairie Heights ProjectOwner: E.A.R. Enterprises proj ect Contact: Erling Birkland Address: P. O. Box 875, Yelm, WA 98597 Phone: (206) 458-2894 proj ect Proponent: (if different) Address: Phone: Project Engineer: Howard N. Gqdat, P.E. Firm: Howard Godat & Associates, Inc. Phone: (206) 943-1599 Page 3 Part ~ Prolect Location Section . 30 Township. 17 North Range . . 2 East, W.M. Name and Addresses of Adjacent Property Owners: Part i ~ of Permit Application Type of Permit (eg, Commercial Bldg): Clearing and utility Other Permits (circle): DOFIW HPA COE Wetlands FEMA Shoreline Management Encroachment Other. . . . COE 404 DOE Dam Safety Floodplain Rockery/Retaining Wall Grading Other Agencies (Federal, State, Local, etc. ) that have had or will review this Drainage and Erosion Control Plan: NIA Page 4 part! Proposed Project Description what stream basin is the project in (eg, Percival, Woodland): Yelm Creek Zoning: . On-Site: Residential Subdivision: R-2 Number of Lots Lot Size (average, acres) Building Permit/Commercial Plat: Building(s) Footprint, acres: Concrete Paving, acres: Gravel Surface, acres:. Lattice Block Paving, Acres'. Public Roads (including gravel shoulder), acres: Private Roads (including gravel shoulder), acres: On-Site Impervious Surface Total, acres: . . . . 63 0.3 2.82 2.82 Page 5 Part ~ Pre-Developed Project Site Characteristics Stream through site y/n: No Name: . . N/A DNR Type: .. N/A Type of feature this facility discharges to (ie, lake, stream, intermittent stream, pothole, roadside ditch, sheet flow to adjacent private property, etc.: Groundwater. Swales, Ravines y/n:. . . . No Steep Slopes, (steeper than 10%) y/n:.. Yes Erosion Hazard, y/n: No 100 Year Floodplain, y/n' Wetlands, y/n . No No Seeps/Springs, y/n No High Groundwater Table, y/n No other:. . Page 6 Part ~ Facility Description: Total Area Tributary to Facility Including Off-Site (acres) . . . . . . . . . . . . 16.64 Total On-Site Area Tributary to Facility (acres):.. 16.64 Design Impervious Area Tributary to Facility (acres): 2.82 Design Landscaped Area Tributary to Facility (acres): 13.82 Design Total Tributary Area to Facility (acres):. .. 16.64 Enter 1 for the Type of Facility: Wet Pond Detention Wet Pond Water Surface Area, Acres Dry Pond Detention . Underground Detention. Infiltration Pond. . . 1 Dry Well Infiltration. Coalescing Plate Separator Centrifuge Separator other. Outlet Type (Enter 1 for Each Type Present): Filter . . . . . . . Oil/Water Separator. Single Orifice . Multiple Orifice Weir. . Spillway Pump ( s ) . Other. . 1 Page 7 Part 7 Release to Groundwater Design Percolation Rate to Groundwater (if applicable): Part 8 Release to Surface Water (if applicable) Thurston County MSL Elevation (ft) Percent Design Full Empty: o 25 50 100 Page 8 Volume ( cu. ft.) o 0 2 in./hr. Discharge to Surface Water (cfs) 0.0 PROJECT ENGINEER'S CERTIFICATE "I HEREBY CERTIFY THAT THIS DRAINAGE AND EROSION CONTROL PLAN FOR PRAIRIE HEIGHTS, YELM, WASHINGTON, HAS BEEN PREPARED BY ME OR UNDER MY SUPERVISION AND MEETS MINIMUM STANDARDS OF THE CITY OF YELM AND NORMAL STANDARDS OF ENGINEERING PRACTICE. I UNDERSTAND THAT THE JURISDICTION DOES NOT AND WILL NOT ASSUME LIABILITY FOR THE SUFFICIENCY, SUITABILITY, OR PERFORMANCE OF DRAINAGE FACILITIES DESIGNED BY ME. II ~ ' ~ Steven D. atton, P.E. Howard Godat & Associates, Inc. IT~.~C:q IJ::.i:-lPr-s J Page 9 PROJECT DESCRIPTION: The proponent of this residential subdivision is applying for clearing, grading and utility permits for the final designs that are submitted to the City of Yelm for review and approval. This proj ect is located on the Vancil Road, 530 feet south of State Route 507. The legal description of this project is as follows' Division One' Lots 2, 3 and a portion of Lot 1 of Short Subdivision SS-1412 as recorded in Volume 14 of Short Plats at Page 120, records of Thurston County, Washington. Division Two' The Northeast quarter of the Southwest quarter of the Northeast quarter of Section 30, Township 17 North, Range 2 East, W. M., EXCEPT the East 15 feet thereof conveyed to Thurston County for road purposes, ALSO That part of the Southeast quarter of the Southwest quarter of the Northeast quarter of Section 30, Township 17 North, Range 2 East, W M., lying Northeast of the Yelm Irrigation District south lateral ditch as the same existed on October 6, 1954 situated in Thurston County, Washington The assessor's tax parcel numbers are 227-30-140501, 227-30-140600, 227-30-14050, 227-30-130100 and 227-30-130600. This project is zoned residential multi-family residence, R-2. No other permits are known to be required for this project. This project will create sixty three (63) residential lots when the project is completed. The project will be constructed and platted as one project or in two divisions. A maximum density of one unit per acre will be constructed with temporary on-site septic systems until the City's S.T.E.P. sewer is available. A dry-line S.T.E.P. sewer will be constructed at this time along with the remaining infrastructure for this subdivision. Detention ponds and infiltration trenches will be utilized to infiltrate the stormwater runoff into the native soils. There will not be a point of discharge from this project, all stormwater will be infiltrated into the native soils. Best Management Practices such as the use of filter fabric fences, straw mats and plastic sheeting will be used during construction to prevent siltation of the existing and proposed storm drainage facili ties. All disturbed areas shall be stabilized and seeded after the roadway and utility construction is complete. There will is an erosion control plan prepared as part of the final designs of this project. Page 10 EXISTING CONDITIONS: This property and the surrounding area is very open with very few trees or understory. The existing cover is mainly grasses as this site has been used as pasture land in the past. The land, generally speaking, slopes from the north to the south with the average slope being approximately 1.8%. The steepest slope on this site is approximately 14%. There is no defined drainage coarse(s) entering or leaving this property. Any stormwater runoff that would find its way onto this property from off-site is by sheet flow. There are no creeks, lakes, wetlands, gullies, steep slopes or other environmentally sensitive areas on this site or immediately down gradient of this site. This property is located in an Aquifer Sensitive Area as mapped by Thurston County There are no other known reports or plans that will impose additional requirements on this project. SOIL REPORT: The SCS soil survey for Thurston County has mapped this area as a Spanaway gravelly sandy loam. This is consistant with the soil test pits that were dug on this site. The soil log map and the soil descriptions can be found at the end of this section of this report. The Spanaway series soils is a very deep somewhat excessively drain soil that was deposited by glacial meltwater of the Vashon Glacier as it receeded. This soils series has a low water holding capacity and has a high hydraulic conductivity. The permeability is moderately rapid to very rapid with infiltration rates in the range of 2.0 to 6.0 inch/hour. Erosion of this soil is slight and runoff is slow. The SCS hydrologic group for the Spanaway soil is a Class "B". Groundwater was not encountered in any of the soil test pits. Soil Log #1: 0" 28" 28" Dark Brown Loam, Type 4 65" Light Brown Fine Sand, Type 3 Roots to 34" (Few Gravels) Soil Log #2: 0" 15" 24" 35" 15" Dark Brown Gravelly Loam, Type 4 24" Gravelly Loamy Sand, Type 3-4 35" Light Brown Gravelly Sand, Type 2-3 55" Light Brown Medium Sand, Type 2 Roots to 30" Page 11 Soil Log #3: 011 1911 33" 19" Dark Brown Loam, Type 4 33" Dark Brown Loamy Sand, Type 3-4 63" Light Brown Very Gravelly Medium Sand, Type 2 Roots to 60" Some Cobbles Soil Log #4: 011 15" 2811 41" 15" Dark Brown Loam, Type 4 28" Dark Brown Loamy Sand, Type 3-4 41" Light Brown Very Gravelly Medium Sand, Type 2 63" Sandy Gravelly, Type 1 Soil Log #5: 0" 3111 3111 Dark Brown Loam, Type 4 65" Gravelly Medium Sand, Type 2 Soil Log #7. 0" 2311 30" 50" 23" Dark Brown Loam, Type 4 30" Dark Brown Loamy Sand, Type 3 50" Light Brown Gravelly Medium Sand, Type 2 65" Clean Medium Sand, Type 2 Soil Log #10: 0" 24" 5311 24" Dark Brown Gravelly Loam, Type 4 53" Extremely Gravelly Medium Sand, Type 2 60" Sandy Gravel, Type 1 Roots to 5311 Soil Log #11: 0" 36" 36" Dark Brown Loam, Type 4 65" Light Brown Gravelly Medium Sand, Type 2 Soil Log A: 0" 20" 20" Dark Brown Gravelly Loam, Type 3-4 62" Light Brown Gravelly Medium Sand, Type 2 Some Cobbles Soil Log B: 011 3311 33" Dark Brown Loam, Type 4 60" Light Brown Gravelly Medium Sand, Type 2 Page 12 g ~ >/ ~ p::1 i ~I N ~ 51.-4 51.-3 . . ~ Sl~ . -1 1" = 200' I lU-- I I I I P JR. ~][ JR.][ E JH[ E][ G- JE-3[ JL S SO][L LOGS WELLS: There are two wells on this site that will be abandoned as per the State Department of Ecology standards for well abandonment. Potable water for this project will be supplied by the City of Yelm. FUEL TANKS: There are no known fuel tanks on this site nor are any planned as part of this project. SUB-BASIN DESCRIPTION: This project is located in the Yelm Creek Sub-Basin of the Nisqually Drainage Basin as mapped by Thurston County. The off-site tributary area for Division One is approximately 12 acres and Division Two, the off-site tributary area is approximately 10 acres. Both off-site areas for the most part are undeveloped and is being used as pasture land. The average slope of the land is approximately 1.5% for both off-site tributary areas. There is no evidence that any runoff from the off-site area is entering this site in a define drainage channel. If runoff is entering this site it is by sheet flow across the existing terrain. Since the existing soils are very porus with very high infiltration rate, the runoff rate is very low. All the stormwater runoff from this project will be infiltrated into the native soils. There will not be a metered release rate to off-site properties. There are no emergency services located on or in the immediate area of this project. There are no known hazardous materials that will be handled on this site or transported in the area tributary to this projects drainage facilities 100 YEAR FLOOD ANALYSIS: This proj ect does not contain or abut a stream nor is this projected located within a 100 year flood hazard zone. AESTHETIC CONSIDERATIONS: All disturbed areas of this project will be seeded upon completion of construction. The biofilter swales and detention ponds will be seeded or sodded with a grass seed mixture compatible for this use. DOWNSTREAM ANALYSIS: The stormwater runoff for this project has been modeled using the II HYDRA II stormwater computer modeling program. The results from this model have been compared to minimum requirements stated in the manual. The minimum requirements are calculated below. All units shall have their own drywells installed to infiltrate the runoff from the roof areas Page 14 AREAS: Division One - Total Site Roads & Driveways Future Houses Disturbed Area 4.77 Acres 0.62 Acres 0.83 Acres (2,000 S.F./Lot) 3.32 Acres Division Two - Total Roadways & Driveways Future Houses Disturbed Area 11.87 Acres 2.16 Acres 2.07 Acres (2,000 S.F./Lot) 7.64 Acres Minimum Storage Volume, V - m Division One - V m = (6, 000 x O. 62) .+ 3. 32 x 2, 000 ) V = 10,360 C.F. m Division Two - Biofilter V = (6,000 x 2.16) m V = 28,240 C.F. m Minimum Area, A : m + (2,000 x 7.64) Division One - A 2,00 x 0.62 m Am 1,240 S.F. Division Two - Am = 2,000 x 2.16 Am = 4,320 S.F. Storage Volumes provided: Division One - The stormwater runoff for this division will be stored in an infil tration trench. The runoff will percolate into the native soils from this infiltration trench. The design infiltration rate is 2 in./hr. (30 min./in.). The infiltration trench will be located below the roadside biofilter swale. The swale shall be lined with a PVC liner or a very low permeable soil so that the runoff does percolate out of the swale before being treated. The stormwater runoff will enter the infiltration trench by means of catch basins located in the swale. The storage volume provided is as follows: V = 1,280 L.F. x 4.5' x 6.0' x 0.30 (30% void ratio) V 10,368 C.F. 10,368 C.F. > 10,360 C.F. OK Page 15 '-.., ~ " '-, ROADSIDE / SWALE / /....- F I L TEFl FABR Ie M I RAF I 140 ,/ OR EQUAL ..-..-.. -..-..- "-"-"-"-"1 () .0, .J · " 0 ~j ;::--Q' . "--" o '\ o to Q'iJ .. . 0 p ~. . >. I ~ C' I I .~. ,<i I .. . Q. , Q 0 .." I ." . Da' C' I> . . C J . .J.J . ...J:"':'-~.~. _to. _.._.,_.._ "_" ------- 8" PERF. PIPE VilA SHED ROC!=", J. -4 50 1 TRENCH DETAIL Division Two - The stormwater runoff for this division of the project will be stored and infiltrated into the native soils via an infiltration pond as shown below The pond has been sized for 49,593 cubic feet of storage as calculated using the HYDRA model. storage volume calculations are as follows: Elevation Area 336.85 338.0 340.0 341.0 1,389 S.F. 7,258 S.F. 18,246 S.F. 24,816 S.F. V1 = 1.15/3[1,389 + 7,258 + (1,389 x 7,258)112] V1 = 4,531 C.F. V 2 = ~ [7,258 + 18,246 + (7,258 x 18,246) 112] 3 V2 = 24,674 C.F. V3 = 1/3[18,246 + 24,816 + (18,246 X 24,816)'12] V3 = 21,446 C.F. V = V, + V2 + Vs Page 16 ---'~---'-- . --~. . ~ _. --,--,.- v = 4,531 + 24,674 + 21,446 V = 50,651 C.P. 50,651 C.P. > 49,593 C.P. OK TOP EL 346 + "' DWL Et,... 341 , 0 / "- "' - y/ ~~7 FLP EL 336 " C" CI_' F OJ>.J r) DET.t..6.;:...I L Below is the II HYDRA II computer model for sizing the storage volumes of both divisions of this plat. Page 17 Howard Godat & Associates, Inc. 4.65 Olympia, WA HYDRA Version status of DEFAULTS at start of run. =========================================================================== Page 1 Command file: C:\HYDRA\CMD\3018.CMD Input units are read as Warnings are turned Output sent to display Output sent to printer Output sent to file Paper width in inches String to reset printer String to set printer to compressed String to set printer to 8 lines/inch Name of printer Print heading at top of page Number of steps in hydrograph Step length in minutes Significant flow in hydrograph Infiltration Diurnalization Factor Maximum plot value Type of hydrographic plot Sanitary flow by Delay to start of actual storm Rational Method computations SCS computations Continuous simulation computations Maximum diD for pipe design/analysis Match point position on pipe Number of allowable diam drops Mimimum drop thru manhole Manning's n Routing technique Calculate sanitary flows Calculate infiltration flows Calculate misc flows USA OFF Brief Off Brief 8.000 NOT SET NOT SET NOT SET NOT SET ON 96 15 o 010 o 980 Selected by HYDRA Compact Diurnal Curve o 00 . OFF Santa Barbara ON 0.900 0.00 or Invert 999 0.000 Variable Quick ON ON ON +-------------------------------------------------------------------- 1: JOB PRAIRIE HEIGHTS 100 YEAR STORM ANALYSIS 2: TOT 6.15 3: FIL 100Z0NE1.INC ------START OF SUB-FILE------ 1: HYE 15 0.091 0.091 0.091 0.091 0.091 0.091 0.106 0.123 0.12 3 0.123+ 2: 0.159 0.159 0.159 0.159 0.176 0 202 0.212 0.212 0.236 0 .236+ 3. 0.248 0.279 0.308 0.308 0.323 0 323 0.412 0.412 0.373 0 .373+ 4' 0.971 2.514 0.553 0.367 0.508 0.391 0.389 0.539 0.579 0 Page 18 5 .333+ 0.449 .272+ 0.234 .237+ 0.227 .151+ 0.151 .151+ 0.151 .136+ 0.136 0.121 0.292 0.272 0.466 0.292 0.237 0.234 0.215 0.241 6 0.208 0.189 0.227 0.189 7 0.151 0.151 0.151 8 . 0.151 0.151 0.151 0.151 0.151 9 . 0.136 0.121 0.121 10. 11 RET ------ END OF SUB-FILE ------ 4 : 5. CHD 6. DPD 7. EPD 8 TRD 9 10: NEW 11 SCS 12 INL 13 TRA 14. CHA 15 HOL 16. 17: NEW 18 SCS 19' INL 20. TRA 21. CHA 22. HOL 23 24 NEW 25 SCS 26. INL 27: TRA 28. CRA 29: HOL 30 : 31. NEW 32: SCS 33: INL 34: TRA 35: CHA 36. HOL 37: 38 NEW 39. SCS 40. INL 41 TRA 42: CHA 43: HOL 44. 45: NEW D-ROAD 100 .01 .15 4 2 4 .001 0 0 0 0 .012 8 .01 .01 2 .0001 .90 36 .013 2 .90 1 .024 (0/0 0/.33 .33/.33 .33/0) D-ROAD 0.21 0.15 98 69 19.5 99 9 358 358 355.43 355.34 195 355.75 354.28 354.65 1 353.18 D-ROAD 0.08 0.50 98 69 17.3 99 9 358 358 355.43 355.34 195 355.75 354.28 354.65 353.18 2 D-ROAD 0.29 0.10 98 69 18.0 99 9 355 355 354.68 354.59 100 355 354.25 353.90 353.15 3 D-ROAD 0.11 0.20 98 69 18.0 99 9 355 355 354.68 354.59 100 355 354.25 353.90 353.15 4 D-ROAD 0.29 0.15 98 69 18.0 99 9 354.3 354.3 353.90 161.5 354 354 353.15 5 353.84 350.57 Page 19 0.272 0.272 0.272 0.272 0 0.259 0.259 0.259 0 237 0 0.189 0.164 0.164 0.151 0 0.151 0.151 0.151 0.151 0 0.151 0.151 0.151 0.151 0 0.121 SWALE SECTION DESISN PIPE EXISTING PIPE 8"x4" BOX DRAIN AREA TRIB TO 1+00 RT SWALE TO CB-l AREA TRIB TO 1+00 LT AREA TRIB TO 2+00 RT AREA TRIB TO 2+00 LT AREA TRIB TO 3+00 RT 46 47. 48: 49' 50' 51 : 52. 53' 54. 55 . 56: 57' 58: 59: 60 . 61 : 62 63: 64' 65 : 66: 67: 68 : 69 70 : 71 72. 73 74. 75: 76 77. 78. 79 80 81 82. 83: 84' 85 86: 87: 88 89. 90. 91 : 92 . 93 94 95 . 96 97. 98 : 99. 100: 101' SCS 0.52 0.20 98 69 17.3 INL 99 TRA 9 351.6 351.6 351.35 351.26 SCS 0.54 0 98 69 22.4 CHA 173 351.6 351.6 351.26 348.25 HOL 6 NEW D-ROAD SCS 0.16 0.80 98 69 17.3 INL 99 TRA 9 351.6 351.6 351.26 351.26 HOL 7 NEW D-ROAD SCS 0.14 1.00 98 69 17.5 INL 99 TRA 9 348.7 348.7 348.38 348.29 SCS .18 0 98 69 16.0 CHA 96 348.7 347.4 348.29 346.33 HOL 8 NEW D-ROAD SCS 0.02 1.0 98 69 10.0 INL 99 TRA 9 347.4 347.4 347.11 347.02 CHA 50 347.4 347.4 347.02 344.97 HOL 9 NEW D-ROAD SCS 0.05 0 98 69 10.0 REC 7 INL 99 CHA 150 351.6 351.6 351.26 348.25 HOL 10 NEW D-ROAD SCS 0.05 1.0 98 69 16.1 INL 99 TRA 9 348.7 348.7 348.38 348.29 SCS 0.06 0.45 98 69 13.3 CHA 45 347.4 347.4 348.25 346.33 HOL 11 NEW D-ROAD SCS 0.03 1.0 98 69 10.0 INL 99 TRA 9 347.4 347.4 347.11 347.02 REC 1 REC 2 REC 3 REC 4 REC 5 HOL 12 NEW D-ROAD REC 6 REC 8 Page 20 AREA TRIB TO 4+50 RT LOTS 3-6 NO STREET AREA TRIB TO 4+50 LT AREA TRIB TO 5+75 RT LOTS 1 & 2 NO STREET AREA TRIB TO 6+20 RT AREA TRIB TO CB-4 AREA TRIB TO 5+75 LT LOT 18 NO STREET AREA TRIB TO 6+20 LT 102: 103: 104: 105: 106 107 108 109 110 111' 112: 113' 114 115 116: 117' 118' 119: 120. 121: 122: 123' 124 125' 126. 127 128: 129: 130: 131' 132: 133' 134 135' 136: 137: 138 139: 140: 141 142 143' 144: 145: 146: 147: 148' 149 150: 151: 152' 153. 154: 155 156' REC 9 REC 10 CHA 1 348 348 346 346 SAV ROL13 NEW D-ROAD REC 11 REC 12 LOA ROL13 RED (0/0 5692/.26 11384/.52 17076/.79 19922/.92 22768/1.05 25614/1.18 50000/1.35) RES 340 340 340 OVER NEW VANCIL ROAD SCS 0.19 1.0 98 69 18 0 0+75 TO 6+95.97 INL 99 DPI 45.80 346.09 346.0 344.42 344.24 CB-7- SWALE HOL 15 NEW VANCIL ROAD SCS 0.23 0.95 98 69 12.0 AREA TRIB TO CB-8 INL 99 DPI 50.91 344.65 344.15 342.98 342 77 CB-8 TO CB-9 SCS 0.26 0.95 98 69 12.5 AREA TRIB TO CB-9 INL 99 DPI 28.32 344.15 344.07 342.77 342.65 CB9-CB10 SCS 1. 21 0.20 98 69 25.6 AREA TRIB TO CB-l0 INL 99 DPI 58.65 344.07 344.0 342.65 342.41 CB10-SWALE HOL 16 NEW VANCIL ROAD SCS 0.25 1.0 98 69 12.0 INL 99 CHA 961 348.7 346.8 347.82 343.02 DPI 24 345.30 345.18 343.02 342.41 12 SCS 0.02 1.0 98 69 10.0 REC 16 INL 99 CHA 47.2 342.18 343.89 342.41 342.27 DPI 24 344.89 344.77 342.27 342.17 12 SCS 0.03 1.0 98 69 10.0 INL 99 CHA 58.61 344.77 344.02 342.17 341.86 ROL 17 NEW VANCIL ROAD SCS 0.11 1.0 98 69 10.0 INL 99 DPI 26.0 346.98 346.98 344.94 344.81 SCS 0.11 1.0 98 69 10.0 DPI 43.44 346.98 346.98 344.81 344.59 HOL 18 NEW VANCIL ROAD SCS 0.04 1.0 98 69 10.0 Page 21 0+75 TO 10+60 EAST SIDE OF RD RD SIDE SWALE CULVERT AREA TRIB TO DWY CULVERT RD SIDE SWALE CULVERT AREA TRIB TO 12+16.18 20'LT RD SIDE SWALE AREA TRIB TO CB-13 CB13-CB14 AREA TRIB TO CB-14 CB14- SWALE AREA TRIB TO CULVERT 12+41 4 157. 158: 159: 160: 161' 162. 163: 164: 165: 166: 167: 168' 169. 170 171. 172: 173: 174' 175 176: 177: 178 179' 180 181. 182: 183: 184: 185: 186: 187: 188: 189: 190: 191: 192: 193: 194: 195: 196: 197 198 199 200 201. 4 INL 99 DPI 24 344.68 344.68 342.68 341.86 12 SCS 0.02 1.0 98 69 10.0 REC 17 INL 99 DPI 33.0 344.53 344.53 342.86 342.53 SCS 0.22 0.95 98 69 10.0 INL 99 DPI 57.47 343.53 344.04 341.53 341.33 SCS 0.08 1.0 98 69 10.0 INL 99 DPI 40.00 344.04 344.0 341.33 341.17 HOL 19 NEW C ROAD SCS 3.41 0.45 98 69 25.6 INL 99 CHA 859.33 345.0 342.0 343.56 339.12 HOL 20 NEW C ROAD SCS 1.25 0.45 98 69 23.2 INL 99 CHA 858.25 345.0 342.0 343.56 339.04 DPI 16.37 340.18 340.18 339.04 338.33 SCS 0 02 1.0 98 69 10.0 INL 99 DPI 22 340.18 340.18 338.33 338.18 SCS 0.02 1.0 98 69 10.0 INL 99 DPI 16.37 340.18 340.18 338.18 338.12 REC 20 CHA 21.38 340.18 339.68 338.12 337.99 DPI 16.37 339.68 339.68 337.99 337.43 SCS 0.07 1.0 98 69 10.0 INL 99 DPI 24.60 339.68 339.68 337.43 337.33 SCS 0.07 1.0 98 69 10.0 INL 99 DPI 16.37 339.68 339.68 337.33 337.26 CULVERT AREA TRIB TO 12+14.44 20' LT SWALE-CBll AREA TRIB TO CB-ll LOW PT CBll - CB12 AREA TRIB TO CB-12 CB12-SWALE AREA TRIB TO A/C RD INT SWALE AREA TRIB TO A/C INT SWALE SWALE-CB15 AREA TRIB TO CB-15 CB15-CB16 AREA TRTIB TO CB-16 CB16-SWALE FLOW FROM RT SIDE SWALE SWALE SWALE-CB17 AREA TRIB TO CB-17 CB17-CB18 AREA TRIB TO CB-18 CB18-SWALE RED (010 1389/.13 4531/.22 29205/.31 50651/.42 650001.53 1000000/1.0) RES 336.85 336.85 341.00 OVER2 END Page 22 ------ SUM MAR Y o F A N A L Y S I S ------ Run number on command file Number of links Number of hydrographs Total sanitary population Total sanitary area Total storm area Number of pumps Number of reservoirs Number of diversion structures Number of inlets Length of new pipe Length of existing pipe Length of channel Length of gutter Length of transport units Length of pressure pipe Page 23 3 50 143 o 0.00 Acres 10.34 Acres o 2 o 30 567.67 Feet 0.00 Feet 4072.27 Feet 0.00 Feet 99.00 Feet 0.00 Feet *** D-ROAD Link 1 Length 9 *** D-ROAD Estimated Link Long Cost 2 195 o *** D-ROAD Link 3 Length 9 *** D-ROAD Estimated Link Long Cost 4 195 o *** D-ROAD Link 5 Length 9 PRAIRIE HEIGHTS 100 YEAR STORM ANALYSIS -Invert Up/Dn 355.43 355.34 Slope Ft/Ft 0.0100 Width: Depth: diD: Veloc Ft/Sec 0.66 0.16 1.38 0.47 Flows in Actual: Max: % Cap Transport Unit CFS Note------------ 0.14 0.35 0.39 Channel Shape Invert Surf FreBrd Width San sto Flow L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel 4.000 354.65 354.85 0.9 3.59 0.00 0.14 0.14 2.00 353.18 353.38 0.9 0.20 0.00 0.00 0.25 4.000 Slope = 0.0075 Froude Number = 0.11 Transport Unit -Invert Up/Dn 355.43 355.34 Slope Ft/Ft 0.0100 Width: Depth: diD: Veloc Ft/Sec 0.66 0.11 1.16 0.33 Flows in Actual: Max: % Cap: CFS Note------------ 0.08 0.35 0.22 Channel Shape Invert Surf FreBrd Width San sto Flow L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel 4.000 354.65 354.80 1.0 3.18 0.00 0.08 0.08 2.00 353.18 353.33 1.0 0.15 0.00 0.00 0.21 4.000 Slope = 0.0075 Froude Number = 0.11 Transport Unit -Invert Up/Dn 354.68 354.59 Slope Ft/Ft 0.0100 Width: Depth: diD: Veloc Ft/Sec 0.66 0.18 1.49 0.56 Page 24 Flows in Actual: Max: % Cap: CFS Note------------ 0.18 0.35 0.51 *** D-ROAD Estimated Link Long Cost 6 100 o *** D-ROAD Link 7 Length 9 *** D-ROAD Estimated Link Long Cost 8 100 o *** D-ROAD Link 9 Length 9 Channel Shape Invert Surf FreBrd Width San sto Flow L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel 4. 000 353.90 354.13 0.9 3.85 0.00 0.18 0.18 2.00 353.15 353.38 0.9 0.23 0.00 0.00 0.27 4.000 Slope = 0.0075 Froude Number = 0.11 Transport Unit -Invert Up/Dn 354.68 354.59 Slope Ft/Ft 0.0100 Width: Depth: diD: Veloc Ft/Sec 0.66 0.11 1.15 0.32 Flows in Actual: Max: % Cap: CFS Note------------ 0.08 0.35 0.22 Channel Shape Invert Surf FreBrd Width San sto Flow L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel 4.000 353.90 354.05 1.0 3.18 0.00 0.08 0.08 2.00 353.15 353.30 1.0 0.15 0.00 0.00 0.21 4.000 Slope = 0.0075 Froude Number = 0.11 Transport Unit -Invert Up/Dn 353.90 353.84 Slope Ft/Ft 0.0067 Width. Depth. diD: Veloc Ft/Sec 0.66 0.22 1.32 0.68 Flows in Actual: Max: % Cap: CFS Note------------ 0.19 0.29 0.67 *** D-ROAD Channel Shape Invert Surf FreBrd Width San sto Flow Estimated Link Long L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel Cost 10 162 4.000 353.15 353.35 0.7 3.57 0.00 0.19 0.19 0 2.00 350.57 350.77 3.2 0.20 0.00 0.00 0.36 4.000 Slope = 0.0160 Froude Number = 0.16 Page 25 *** D-ROAD Transport Unit Link 11 Length 9 -Invert Up/Dn 351.35 351.26 Slope Ft/Ft 0.0100 Width Depth' diD Veloc Ft/Sec 0.00 0.00 0.00 0.00 Flows in Actual. Max: % Cap: CFS Note------------ 0.37 0.35 1. 06 *** D-ROAD Channel Shape Invert Surf FreBrd Width San sto Flow Estimated Link Long L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel Cost 12 173 4.000 351.26 351.62 -0.0 4.88 0.00 0.64 0.64 0 2.00 348.25 348.61 3.0 0.36 0.00 0.00 0.52 4.000 Slope = 0 0174 Froude Number = 0.18 *** D-ROAD Transport Unit -Invert Slope Veloc Link Length Up/Dn Ft/Ft Ft/Sec Flows in CFS Note------------ 13 9 351.26 0.0001 Width' 0.00 Actual: 0.20 351.26 Depth: 0.00 0.00 Max: 0.04 diD. 0.00 % Cap: 5.71 14 9 348.38 0.0100 Width: 0.66 Actual: 0.20 348.29 Depth: 0.20 1. 55 Max: 0.35 diD: 0.61 % Cap: 0.57 *** D-ROAD Channel Shape Invert Surf FreBrd Width San sto Flow Estimated Link Long L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel Cost 15 96 4.000 348.29 348.52 0.2 3.86 0.00 0.30 0.30 0 2.00 346.33 346.56 0.8 0.23 0.00 0.00 0.44 4.000 Slope = 0.0204 Froude Number = 0.19 *** D-ROAD Transport Unit -Invert Slope Veloc Link Length Up/Dn Ft/Ft Ft/Sec Flows in CFS Note------------ 16 9 347.11 0.0100 width' 0.66 Actual: 0.03 347.02 Depth: 0.06 0.83 Max: 0.35 diD: 0.18 % Cap' 0.09 Page 26 *** D-ROAD Estimated Link Long Cost 17 50 o 18 150 o *** D-ROAD Link 19 Length 9 D-ROAD Estimated Link Long Cost 20 45 o *** D-ROAD Link 21 Length 9 *** D-ROAD Estimated Link Long Cost 22 o Shape L/C/R Invert Surf FreBrd Width Up/Dn Up/Dn Up/Dn Depth Inf 4.000 347.02 347.07 0.3 2.00 344.97 345.02 2.4 4.000 Slope = 0.0410 4.000 351.26 351.46 0.1 2.43 0.00 San Mis 0.03 0.05 0.00 0.00 Froude Number = 2.00 348.25 348.45 3.1 4.000 Slope = 0.0201 -Invert Up/Dn 348.38 348.29 Shape L/C/R Slope Ft/Ft 0.0100 Width Depth. diD. Invert Up/Dn 3.62 0.00 0.23 0.20 0.00 0.00 Froude Number = Veloc Ft/Sec 0.66 0.10 1.13 0.31 Surf FreBrd Flows in Actual: Max: % Cap: Width San Up/Dn Up/Dn Depth Inf 4.000 348.25 348.37 -1.0 2.00 346.33 346.45 0.9 4.000 Slope = 0.0427 -Invert Up/Dn 347.11 347.02 Shape L/C/R 1 Slope Ft/Ft 0.0100 width: Depth: diD: Invert Up/Dn 2.97 0.00 Channel sto Flow Flows in Actual: Max: % Cap: Width San Up/Dn Up/Dn Depth Inf vel 0.03 0.27 0.21 0.23 0.41 0.18 Transport Unit CFS Note------------ 0.07 0.35 0.21 Mis 0.13 0.12 0.00 0.00 Froude Number = Veloc Ft/Sec 0.66 0.08 0.98 0.24 Surf FreBrd 4.000 346.00 347.58 0.4 14.67 0.00 Page 27 Channel sto Flow Vel 0.13 0.44 0.25 Transport Unit CFS Note------------ 0.05 0.35 0.14 Channel sto Flow Mis 1. 20 Vel 1.20 2.00 346.00 347.58 0.4 4.000 Slope = 0.0001 1.58 0.00 0.00 Froude Number = 0.09 0.02 Lateral length= 1 upstream length= 506 Lateral length= o upstream length= o *** D-ROAD Reservoir Link Invert -------------- Up/Dn/Ovr Maximum Flow Values ----------------- San Inf sto Mis Design Cost Exfil 24 340.00 Incoming 0.00 0.00 1. 38 0.00 1. 38 0 340.00 Discharge 0.00 0.00 0.34 0.00 0.34 340.00 Overflow 0.00 0.00 0.00 0.00 0.00 Stored 0 0 7340 0 7340 0 Lateral length= o upstream length= 569 *** VANCIL ROAD Pipe Design Invert Depth Min San sto Vel Design Estimated Link Long Diam Up/Dn Slope Up/Dn Cover Inf Mis diD CFS Cost 25 46 8 344.42 0.0039 1. 67 0.95 0.0 0.3 1. 76 0.27 0 CB-7- SWALE 344.24 1. 76 0.0 0.0 0.44 Invert Depth Min San sto Vel Design Estimated Link Long Diam Up/Dn Slope Up/Dn Cover Inf Mis diD CFS Cost 26 51 8 342.98 0.0041 1. 67 0.66 0.0 0.3 1. 93 0 CB-8 TO CB-9 342.77 1. 38 0.0 0.0 0.50 27 28 8 342.77 0.0042 1. 38 0.66 0.0 0.7 2.44 0 CB9-CB10 342.65 1. 42 0.0 0.0 0.78 28 59 10 342.65 0.0041 1. 42 0.52 0.0 1.5 2.88 0 CB10-SWALE 342.41 1. 59 0.0 0.0 0.88 0.34 0.72 1. 48 *** VANCIL ROAD Channel Shape Invert Surf FreBrd Width San sto Flow Estimated Link Long Cost L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel Page 28 29 961 4.000 347.82 348.20 0.5 5.03 0.00 0.38 0.38 0 2.00 343.02 343.40 3.4 0.38 0.00 0.00 0.29 4.000 Slope = 0.0050 Froude Number = 0.10 *** VANCIL ROAD Pipe Design Invert Depth Min San sto Vel Design Estimated Link Long Diam Up/Dn Slope Up/Dn Cover Inf Mis diD CFS Cost 30 24 12 343.02 0.0254 2.28 1. 20 0.0 0.4 3.75 0.38 0 CULVERT 342.41 2.77 0.0 0.0 0.20 *** VANCIL ROAD Channel Shape Invert Surf FreBrd Width San sto Flow Estimated Link Long L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel Cost 31 47 4.000 342.41 343.27 -1.1 8.85 0.00 1. 61 1. 61 0 2.00 342.27 343.13 0.8 0.86 0.00 0.00 0.35 4.000 Slope = 0.0030 Froude Number = 0.08 *** VANCIL ROAD Pipe Design Invert Depth Min San sto vel Design Estimated Link Long Diam Up/Dn Slope Up/Dn Cover Inf Mis diD CFS Cost 32 24 12 342.27 0.0042 2.62 1. 52 0.0 1.6 2.92 1. 61 0 CULVERT 342.17 2.60 0.0 0.0 0.65 *** VANCIL ROAD Channel Shape Invert Surf FreBrd Width San sto Flow Estimated Link Long L/C/R Up/Dn Up/Dn Up/Dn Depth Inf Mis Vel Cost 33 59 4.000 342.17 342.93 1.8 8.08 0.00 1. 65 1. 65 0 2.00 341.86 342.62 1.4 0.76 0.00 0.00 0.43 4.000 Slope = 0.0053 Froude Number = 0.11 Page 29 *** VANCIL ROAD Link Long Diam 34 26 o CB13-CB14 35 43 o CB14- SWALE 36 24 o CULVERT 37 33 o SWALE-CBll 38 57 o CBll - CB12 39 40 o CB12-SWALE *** C ROAD Estimated Link Long Cost 40 859 o SWALE 41 858 o SWALE *** C ROAD Link Long Diam 42 16 Invert Up/Dn Depth Min Slope Up/Dn Cover San Inf 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 9.81 Pipe Design sto Mis Vel Design Estimated diD CFS Cost 0.2 1.65 0.0 0.32 0.3 2.07 0.0 0.47 0.1 2.40 0.0 0.08 1.7 4.17 0.0 0.71 2.1 2.96 0.0 0.83 2.2 3.16 0.0 0.82 Lateral length= 154 upstream length= 2.00 339.04 339.66 2.3 4.000 Slope = 0.0053 Invert Up/Dn Depth Min Slope Up/Dn Cover Width San L/C/R Up/Dn Up/Dn Up/Dn Depth Inf 0.17 0.35 0.06 1. 75 2.07 2.20 1407 Channel sto Flow 8 344.94 0.0050 2.04 1.32 344.81 2.17 0.00 2.84 0.98 0.00 0.00 Froude Number = Mis Vel 8 344.81 0.0051 2.17 1.45 344.59 2.39 6.98 0.00 1. 08 0.62 0.00 0.00 Froude Number = 2.84 0.49 0.11 1. 08 0.39 0.11 sto Mis Pipe Design Vel Design Estimated diD CFS Cost 1. 08 12 342 68 0.0342 2.00 0.92 341.86 2.82 10 341.86 0.0100 2.67 1.77 341.53 3.00 12 341.53 0.0035 2.00 0.92 341.33 2.71 12 341.33 0.0040 2.71 1.63 341.17 2.83 Shape Invert Surf FreBrd 4.000 343.56 344.54 0.5 2.00 339.12 340.10 1.9 4.000 Slope = 0.0052 4.000 343.56 344.18 0.8 8 339.04 0.0434 1.14 0.42 Page 30 San Inf 0.0 1.1 6.20 o SWALE-CB15 43 22 o CB15-CB16 44 16 o CB16-SWALE *** C ROAD Estimated Link Long Cost 45 21 o SWALE 338.33 1. 85 0.0 10 338.33 0.0068 1.85 0.95 0.0 338.18 2.00 0.0 10 338.18 0.0037 2.00 1.10 0.0 338.12 2.06 0.0 0.0 0.49 1.1 3.16 0.0 0.59 1. 1 2.56 0.0 0.73 1. 09 1.10 Channel Shape Invert Surf FreBrd Width San sto Flow L/C/R up/Dn Up/Dn Up/Dn Depth Inf Mis Vel 4.000 338.12 339.18 1.0 10.51 0.00 3.74 3.74 2.00 337.99 339.05 0.6 1. 06 0.00 0.00 0.56 4.000 Slope = 0.0061 Froude Number = 0.12 *** C ROAD Invert Depth Min San Link Long Diam Up/Dn Slope Up/Dn Cover Inf 46 16 10 337.99 0.0342 1. 69 0.79 0.0 0 SWALE-CB17 337.43 2.25 0.0 47 25 15 337.43 0.0041 2.25 0.90 0.0 0 CB17-CB18 337.33 2.35 0.0 48 16 15 337.33 0.0043 2.35 1. 00 0.0 0 CB18-SWALE 337.26 2.42 0.0 *** C ROAD Pipe Design sto Vel Design Estimated Mis diD CFS Cost 3.7 8.05 0.0 0.78 3.8 3.64 0.0 0.78 3.8 3.71 0.0 0.77 3.74 3.78 3.83 Lateral length= 992 ---------------------------------------------------- 1851 Lateral length= o Upstream length= ---------------------------------------------------- Upstream length= o Reservoir Invert -------------- Maximum Flow Values ----------------- Link Up/Dn/Ovr San Inf sto Mis Design 50 336.85 Incoming 0 336.85 Discharge 341.00 Overflow Stored 0 0.00 0.00 3.83 0.00 Cost Exfil 3.83 0.41 0.00 49593 ---------------------------------------------------- 0.00 0.00 o 0.00 0.00 o 0.41 0.00 49593 0.00 0.00 o 1851 Lateral length= 992 upstream length= Page 31 COVENANTS, DEDICATIONS AND EASEMENTS: The dedications and easements for this project will be shown on the final plat. Covenant for a Homeowner's Association will be filed with the final plat. Page 32 EROSION CONTROL PLAN: A. Construction Sequence and Procedure: Prior to the commencement of any clearing, grading or filling activity for these improvements, all erosion control measures, including installation of a stabilized construction entrance if required, shall be installed in accordance with the details and specifications shown on the erosion control plan. B. Trap Sediment: The installation of a filter fabric fence as shown on the erosion control plan to treat silt laden runoff from the exposed soils. As indicated in Section IV-A of the drainage and erosion control manual, protection of proposed and existing storm drainage facilities is an absolute necessity. Additional erosion control measures may be necessary during construction and is the contractor's responsibility to ensure that erosion to future and existing drainage facilities does not occur. C. Site Restoration: All disturbed soils shall be seeded upon completion of this project. Street trees and shrubs shall be planted as shown on the plans. All other exposed areas shall be seeded with a grass seed mixture. D. Geotechnical Report: There are no slopes steeper than 25% on or near this project. The average slope is 1.5% in the project site. Since the 25% slope is not exceeded on this project, a geotechnical analysis is not required. E. Inspection Sequence: City of Yelm and Howard Godat & Associates shall inspect all erosion and drainage facilities for this project. All erosion control devices shall be inspected prior to constructing of this project commences. Page 33 MAINTENANCE AND OPERATION PLAN: A. Introduction: The storm drainage for this project include catch basins, a piping conveyance system, a grass lined biofilter swale, an infiltration pond and an infiltration trench. B. Responsibility: Operation and maintenance of the storm drainage facilities within the public rights-of-way is the sole responsibility of the City of Yelm. The association will maintain the infiltration pond. c. Schedule: Maintenance of the drainage facilities shall, as a mlnlmum, follow the schedule outlined in the tables included in this manual as they apply to the facilities of this proj ect. Inspection of all facilities shall be performed per the maintenance schedule and corrections shall be made if the "criteria" for attention is met. D. Cost: Cost for performing maintenance and corrective measures for the drainage facility is estimated to be $500.00/year. Page 34 Page 1 of 2 APPROXIMATE MAINTENANCE SCHEDULE FOR DRAINAGE SYSTEM COMPONENTS ..... ... ...... ........ ........ ... ...... ..... FACILITY TYPE MAINTENANCE PROBLEM CRITERIA FOR ATTENTION ESTIMATED MAINTENANCE FREQUENCY (Years) Filter vaults Plugging Backup in conveyance system .5 Open ponds, channels Trash &. Debis 1 cubic foot per 1000 SQ. 1 feet, plugged trash rack. Poisonous vegetation If multiple use facility and 1 presence of tansy, report, poison oak, stinging nettles, devils club, etc. Pollution Presence of oil, gas, or other contaminants which could cause plant damage, could constitute a fire hazard, or threatens water Quality Unattended ground cover Site does not fit into 2 neighborhood Rodent holes In berm Evidence of rodents or piping 5 through dam. Tree growth Trees interfere with 5 maintenance. (do not remove If not a problem) Erosion of slope faces SIgns of erosion or potential 10 for erosion. Settling of berms Settling of 4" or more. 15 Sediment More than 10% of design 2 volume is lost. Filter outlet loses 15% of capacity. Spillway or rocl< Soil Is unprotected and 12 revetments damage. sUbject to erosion Closed detention systems Plugged air vents Half of vent area Is blocked 1 Debris &. Sediment Sediment exceeds 1 0% of depth 1 for 1/2 the length of storage vault or any point deeper than 15% of depth. Page 2 of 2 APPROXIMATE MAINTENANCE SCHEDULE FOR DRAINAGE SYSTEM COMPONENTS FACILITY TYPE MAINTENANCE PROBLEM CRITERIA FOR ATTENTION ESTIMA TED MAINTENANCE FREQUENCY (Years) Cracks In facility or Groundwater infiltration 20 Inflowl outflow Ipipes Structural failure. Tank, pipe or vault is bent 20 or collapsed so that 10% or more of volume Is lost. Flow restrictor (orifIce) Trash build-up Less than 1.5 feet from 1 orifice down to debris build-Up or blocked orifice. Structural Damage Failed connectors, out of 20 plumb, ladder unsafe, corrosion, etc. Infiltration systems Capacity loss (blinding) System falls below 90% of 2 design hydraulic capacity Catch basins Sediment build-up More than 113 of depth to .5 to 1 lowest invert is silted. Structural damage Frame out of flush by 3/4", 20 cracks in walls, settlement, rotation, etc. Pollution High levels of 011, grease, .5 toxins, etc. present. Pipes Sediment 20% of depth 2 Structural Dents decreasing area by 20%, 10 cracks allowing groundwater Intrusion, corrosion Open channels Sediment, vegetation Sediment depth exceeds 20% of 2 design depth or vegetation exceeds design height. APPENDIX A ENVIRONMENTAL CHECKLIST Phone Town of Yelm Apr II 8, 1993 E.A.R. ENTERPRISES P. O. BOX 875 YELM. WA 98597 (206) 458-2894 HOWARD GODAT & ASSOCIATES. INC. 2708 Westmoor Court Olympia. WA98502 (206) 943-1599 1 Proponent (c) Address 2 Representative Address Phone 3 Property Address or Location (e) Vancil Road, S.E. 4 1/4 S/T/R (f) SW 1/4 and SE 1/4 of the N 1/4 of Sec. 30, T18N, R2E, W.M. 5 Tax Parcel # (g) 227-30-140501, 227-30-140600, 227-31-30100 and 227-30-130600 6 Total Acres 16 Acres, more or less 7 8 9 Perm I t Type Zoning Prel imlnary Plat Approval Residential Multi-Family (R-2) Shoreline Environment N/A 10 Water Body N/A 11 Brief Description of the Proposal and Project Name 63 lot residential subdivision with the proposed roadways and Infrastructures. The plat Is to be called Prairie Heights. 12 Estimated Completion Date. Summer, 1993 13 List of al I Permits, Licenses or Government Approvals required for the Proposal (federal, State and Local Including Rezones) Clearing, grading. uti I Itles, building and right-of-way access. 14 Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. There are no plans for additions of this proJect beyond the Division One and Division Two boundaries. 15 Do you know of any plans by others which may affect the property covered by your proposal? If yes, explain' There are no known plans by others that will affect this project. 16 Proposed timing or schedule (Including phasing, if applicable: Division One completed by Summer, 1993. Division Two completed by Fall, 1994. 1 17 List any environmental Information you know about that has been prepared, or wi I I be prepared, directly related to this proposal The only known environmental Information that has been prepared for this area Is that this project lies within the aquifer sensitive area as mapped by Thurston County. To be Completed by Applicant 1 Earth a General description of the site (circle one) Flat, rol ling, hi I Iy, steep slopes, mountainous, other Roiling b What Is the steepest slope on the site (approximate percent slope) The steepest slope on this site Is approximately 14%. located In the southwest corner of Division Two. c What general types of sol Is are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural sol Is, specify them and note any prime farmland There are two soil types on this project: fine sand; Spanaway gravelly sandy loam. N I squa I I Y loamy d Are there surface Indications or history of unstable soi Is In the Immediate vicinity? If so, describe NO e Describe the purpose, type and approximate quantities of Any fi fling or grading proposed Indicate source of fl I I Grading of roadway. There will be approximately 3.500 C.Y. of material to be graded on this site. f Could erosion occur as a result of clearing, construction or use? If so, generally describe Ralnfal I runoff could cause erosion to unprotected areas. The site shall have erosion measures In place as per the Drainage Design and Erosion Control Manual for Thurston County Region Washington. g About what percent of the site wi I I be covered with impervious surfaces after project construction (for example, asphalt or bu I I dings)? Approximately 45% of the site will be Impervious with roadways and houses. h Proposed measures to reduce or control erosion, or other Impacts to the earth. If any On-site erosion control fencing. siltation pond Installation of storm drain system and retention piping as per the Drainage Design and Erosion Control Manual for Thurston Region Washington. 2 2 Ai r a What types of emissions to the air would result from the proposal (i.e , dust, automobile, odors, Industrial wood smoke) during construction and when the project Is completed? If any, generally describe and give approximate quantities If known Dust during construction, exhaust emission from construction equipment. Increased auto emission from completed project. b Are there off-site sources of emissions or odor that may affect your proposal? If so, generally describe Two roadways; State Route 507 and Vancil Road. c Proposed measures to reduce or control emissions or other Impacts to air, If any Dust Control Measures during construction, Standard Emission control devices for project site. 3 Water a Surface 1) Is there any surface water body on or In the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names If appropriate, state what stream or river It flows Into There are no surface waters on or In the Immediate area of this site. 2) Wi I I the project require any work over, In, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans NO 3) Estimate the amount of fl I I and dredge material that would be placed In or removed from surface water or wetlands and Indicate the area of the site which would be affected Indicate the source of fi I I material. NONE 4) WI I I the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known NO 5) Does the proposal I ie within a 100-year floodplain? If so, note location on the site plan NO 6) Does the proposal Involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge NO 3 b Ground 1) WI I I ground water be withdrawn or wi I I water be discharged to ground water? Give general description, purpose, and approximate quantities If known Stormwater runoff wll I be Infiltrated Into the native soils of this site. 2) Describe waste material that wi I I be discharged into the ground from septic tanks or other sources, if any (for example domestic sewage, Industrial waste containing the fol lowing chemicals ., agricultural) Describe the size of the system, the number of such systems, the number of houses to be served (if appl icable), or the number of animals or humans the system(s) are expected to serve Proposal wi I I be served by proposed S.T.E.P. sewer system. c Water Runoff (including stormwater) 1) Describe the source of runoff (Including storm water) and method of collection and disposal, If any (include quantities, If known) Where wi I I this water flow? Wi I I this water flow Into other waters? If so, describe Stormwater runoff from the proposed roadways wi I I be collected In roadside swales which will serve as a treatment facl I Ity as wel I as a disposal method. 2) Could waste materials enter ground or surface waters? If so, generally describe Untreated storm water can carry pollutants. d Proposed measures to reduce or control surface, ground, and runoff water impacts, If any Design of drainage system to best management practices. Installation of blofl Itratlon swales. The stormwater control and treatment shal I be designed for the drainage design and erosion control manual for the Thurston Region. 4 Plants a Check or circle types of vegetation found on the site deciduous tree, maple, other -X evergreen tree, fir, cedar, pine, other --- shrubs --- -y- grass -y- pasture crop or grain --- wet sol I plants, cattal I, buttercup, bulrush, skunk cabbage, OTJ1er water plants, water lily, eelgrass, ml Ifoi I, other === other types of vegetation b. What kind and amount of vegetation wi I I be removed or altered? Only that what Is necessary for the site Improvements and utility construction. c List threatened or endangered species known to be on or near the site NONE KNOWN 4 d. Proposed landscaping, use of native plants, or other measurers to preserve or enhance vegetation on the site, if any Finish site to be landscaped and retention of natural vegetation where possible. 5 Animals a Circle any birds and animals which have been observed on or near the site or are known to be on or near the site birds hawk, heron, eagle, songbirds, other Robins Blue Jays, Wren. Chickadee. Crow mammals deer, bear, elk, beaver, other rabbit fish bass, salmon, trout, herring, shellfish, b List any threatened or endangered species known to be on or near the site NONE KNOWN c Is the site part of a migration route? If so, explain NO d Proposed measures to preserve or enhance wi Idl Ife, If any Retain useable native vegetation where possible. 6 Energy and Natural Resources a What kinds of energy (electric, natural gas, oi I, wood stove, solar) wi I I be used to meet the completed project's energy needs? Describe whether it wi I I be used for heating, manufacturing, etc Electric and/or gas heating and electric lighting. b Would your proJect affect the potential use of solar energy by adjacent properties? If so, generally describe NO c What kinds of energy conservation features are Included In the plans of this proposal? List other proposed measures to reduce or control energy Impacts, If any Energy Efficient construction to State and N.W. Energy Code. 7. Environmental Health a Are there any environmental health hazards, Including exposure to toxic chemicals, risk of fire and explosion, spl I I, or hazardous waste, that could occur as a result of this proposal? If so, describe NONE KNOWN 1) Describe special emergency services that might be required. NONE 5 2) Proposed measures to reduce or control environmental health hazards, If any AI I lots shal I be connected to the Town's S.T.E.P. sewer system. Domestic water service shal I be provided by the Town of Yelm. All existing wel Is on this site shal I be abandoned. b Noise 1) What types and levels of noise exist In the area that may affect your project (for example, traffic, equipment, operations) Existing traffic noises from State Route 507 and Vancl I Road. 2) What types and levels of noise wi I I be created by or associated with the project on a short- or long-term oasis (for example, traffic, construction, operations, other)? Indicate what hours noise would come from the site Short term noise during construction phase - 7:00 A.M. to 9:00 P.M. Long term Increased auto noise from completed project. 3) Proposed measures to reduce or control noise impacts, If any Retain the native vegetation wherever possible. 8 Land and Shorel ine Use a. What Is the current use of the site and adjacent properties? This site and the surrounding properties are currently residential housing and farm land. b Has the site been used for agriculture? If so, describe. Yes It has. c Describe any structures on the site Yes there are existing structures on this site. They Include houses, mobile homes. barns and carports. d Wi I I any structures be demolished? If so, what? Yes. al I structures are to be demolished or removed from this site. e What Is the current zoning classification of the site? Residential multi-family (R-2). f. What Is the current comprehensive plan designation of the site? Residential multi-family (R-2). g. If applicable, what Is the current Shorel ine Master Program designation of the site? N/A 6 h. Has any part of the site been classified as "environmentally sensitive"? If so, specify Yes. this site lies within an aquifer sensitive area as mapped by Thurston County. I Approximately how many people would reside or work In the completed prOject? Assuming 6.2 residences per lot. there wi II be approximately 391 residents when this project Is completed for the full 63 lots. J Approximately how many people would the completed project displace? Approximately 9 people. k Proposed measures to avoid or reduce displacement Impacts, If any NONE I Proposed measures to ensure the .proposal Is compatible with existing and projected land uses and plans, If any Comply with Zoning Requirements 9 Housing a Approximately how many units would be provided, If any? Indicate whether high, middle, or low-Income housing 154 low to middle Income housing units. b Approximately how many units, If any, would be el imlnated Indicate whether high, middle or low-income housing NONE c Proposed measures to reduce or control housing impacts, if any NONE 10 Aesthetics a What Is the tal lest height of any proposed structureCs), not Including antennae, what Is the principal exterior building materialCs) proposed? 25' height. LP siding. b What views In the Immediate vicinity would be altered or obstructed? Change from native undeveloped land to a residential subdivision. c Proposed measures to reduce or control aesthetic Impacts. if any Retain native vegetation where possible. 7 11 Light and Glare a What type of light or glare wi I I the proposal produce? What time of day would It mainly occur? Parking and Sui Idlng lighting. dusk to dawn b Could I ight or glare from the finished project be a safety hazard or Interfere with views? NO c What existing off-site sources of light or glare may affect your proposal? NONE d Proposed measures to reduce or control I ight and glare Impacts, If any Retain native vegetation where possible. 12 Recreation a What designated and Informal recreational opportunities are In the Immediate vicinity? Golf course. City park and bike paths. b Would the proposed project displace any existing recreational uses? I f so, descr I be NO c Proposed measures to reduce or control Impacts on recreation, including recreation opportunities to be provided by the project or app I I cant, I f any This project wi I I provide approximately 6.400 square feet of open space. The existing residential structure wll I be removed from the open space area prior to total bulldout of this plat. 13 Historic and Cultural Preservation a Are there any places or objects I isted on, or proposed for, national, state, or local preservation registers known to be on or next to the site I f so, genera II y descr I be NONE KNOWN b Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural Importance known to be on or next to the site. NONE KNOWN c Proposed measures to reduce or control Impacts, If any NONE 8 ".. 14 Transportation a Identify public streets and highways serving the site, and describe the proposed access to the existing street system Show on site plans, I f any Access shal I be from the Vancl I Road, S.E. b. Is site currently served by pUblic transit? If not, what Is the approximate distance to the nearest transit stop? NO c How many parking spaces would the completed project have? How many would the project el iminate? 308 off street spaces, none eliminated. d Wi I I the proposal require any new roads or streets or Improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether publ Ie or private) Yes. (1) The Internal roadways shal I be constructed to 24 feet of paved surface. vertical curbing and concrete sidewalks on both sides of the street with the cul-de-sac having sidewalk on one side of the street only (2) Frontage Improvements to Vanci I Road shal I be for an eventual 28 foot roadway section concrete curb. gutter and sidewalk. A minimum of 24 feet of paved roadway shal I be prOVided along the plat's frontage. (3) Off-site Improvements shall Include resurfacing Vancl I Road from the northerly plat boundary north to Yelm Avenue. The resurfacing shal I Include two 11 foot driving lanes and a 4 foot paved shoulder on the westerly side for pedestrian use. e Wi I I the project use (or occur In the Immediate vicinity of) water, rai I, or air transportation? If so, generally describe No, It wi I I not use water, ral I or air transportation. f How many vehicular trips per day would be generated by the completed project? If known, Indicate when peak volumes would occur 1.232 V.T.D. Peak morning & evening. g. Proposed measures to reduce or control transportation impacts, If any Construction of new roadways to serve this plat. 15. Publ Ie Services a Would the project result In an Increased need for publ ic services (for example, fire protection, pol ice protection, health care, schools, other)? If so, generally describe Yes, Fire and Pol Ice Impact due to Increased facl I Itles and popUlation. b. Proposed measures to reduce or control direct impacts on public services, If any AI I Improvements are to be constructed to all current applicable codes 9 '~ 16 Ut I lit I es a Circle uti I Itles currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic sysrem:-other T V Cable b Describe the uti I Itles that are proposed for the project, the uti I Ity providing the service, and the general construction activities on the site or in the Immediate vicinity which might be needed Water & sewer service by Town of Yelm. puget Power electric service. U.S.West phone service, Telecable of Washington. T.V. Cable. Washington Natural Gas. gas service. Pacific Disposal refuse. AI I utility services to be extended to the site by others. The above answers are true and complete to the best of my knowledge. I understand that the lead agency Is relying on them to make Its decision. SI!.(~tq7 ,tl L PE- O~ 1993 Date Submitted 10 ~ EL 348 ~ 8" PIPE 2.726' RESERVIOR WTR EL 486.9 8" PIPE w a.. - a.. w.. a.. ,.... -~ a.. 10 l:: · CD- l:: CD 8" PIPE ~ ~ EL 357 49' 8" PIPE ~PROPOSED HYDRANT ~ NODE NUMBER EL 357 PRAIRIE W A TERMAIN HEIGHTS SCHEMA TIC FIRE FLOW ANALYSIS Ex. hydrant 470 feet westerly of SR 507/Vancil Road intersection. static Residual Flow 60 PSI 40 PSI 1,110 GPM @ 20 PSI hf = 20 PSI or 46.20 Ft. L = 150 1.85 ( 4 6 . 2 0) ( 8 ) 4,87 110 10.45 L = 2,726 L.F. 8-Inch Pipe Elevation at Ex. Hydrant 348.0 Reservoir El. = 348 + (60 x 2.31) = 486.6 Ft. OTITLE GIVEN TO NETWORK PRAIRIE HEIGHTS FIRE FLOW ANALYSIS MAY 14, 1993 FILE 3018.IN OALL DEMAND FLOWS ARE MULTIPLIED BY OPIPES 4 NODES 5 SOURCE PUMPS 0 BOOSTER PUMPS 0 RESERVOIRS 1 MINOR LOSSES 2 PRVS 0 NOZZLES 0 CHECK VALVE 0 BACK PRES. V. 0 DIF. HEAD DEV 0 RESERVOIR(NOZZLE) PIPES AND THEIR ELEVATIONS ARE 1 486.9 MINOR LOSS PIPES AND THEIR COEFS. 2 1.8 3 1.8 N9= 4 N8= 4 OJUNCTION EXT. FLOW PIPES AT 1 101 .000 -1 2 102 .000 -2 3 103 .000 -3 4 104 2.228 -4 PIPE NOS., LOSS COEF. IN K*V**2/G2 ,AND LENGTH PLUS EQUIV. LENGTH 2 2 1.80 553.56 3 3 1.80 1630.56 OFLOW FROM PUMPS AND RESERVOIRS EQUALS 1000.000 1.0000 JUNCTION 2 3 4 OUNITS OF SOLUTION ARE DIAMETERS - INCH LENGTH - FEET HEADS - FEET ELEVATIONS - FEET PRESSURES - (PSI) FLOWRATES - (GPM) DARCY-WEISBACH FORMULA USED FOR COMPUTING HEAD LOSS 1PIPE DATA PIPE NODES NO. FROM TO 1 2 3 4 1NODE LENGTH DIAM 100 101 102 103 DATA: 2726. 470. 1547. 49. 8.0 8.0 8.0 8.0 COEF HEAD FLOW RATE VELOCITY LOSS 101 102 103 104 .000750 .000750 .000750 .000750 1000.00 1000.00 1000.00 1000.00 6.38 6.38 6.38 6.38 39.75 8.07 23.77 .71 NODE DEMAND HGL NO. (GPM) (CFS) ELEV HEAD PRESSURE ELEV ---------------------------------------------------------------- 100 -1000.0 -2.23 348. 138.60 60 06 486.90 101 . 0 .00 348. 98.85 42.84 447.15 102 . 0 .00 349. 90.58 39.25 439.08 103 . 0 .00 357. 58 61 25.40 415.31 104 1000.0 2.23 357. 57.40 24.87 414.60 HLOSS /1000 14.58 17.17 15.37 14.58 STREET LIGHTING LINE LOSS CALCULATIONS Howard Godat & Associates, Inc. June 23, 1993 voltage Drop (VD) = 2Ll/dV In Percent(%) k = Resistivity Constant, 12 L Conductor Length in Feet 1 = System Current d = Conductor Area in cm V System Voltage d = 16510cm, #8 Cu v = 240 Vac PRAIRIE HEIGHTS Source to 12+73 L = 153 Ft. 1 = 6.667 A VD 0.62% 12+73 to 10+77 L 197 Ft. 1 = 3.33 A VD = 0.40% 12+73 to 13+68 L = 100 Ft. 1 = 3.333 A VD = 0.20% 10+77 to 7+93 L = 284 Ft. 1 = 1. 667 A VD = 0.29% 13+68 to 15+10 L = 180 Ft. 1 1.6667 A VD = 0.18% ~ -::\:;r-..;.: ",.,:1.."' ,.r !' . '#"""....... ~'~...;;I.O' ....~-... .~.." --- PAVEMENT ANri"~~GN'.~~-179'r~:': "j;"i-I'!~ -....... .. ", .."," ',. 9 100 90 80 70 60 SO 40 c.Be ~ 3::;- 1<.=G5 '. 8 30 60 - c: 20 0 - - 7-.~ Qj) SO c: c: ~ SO -- ~ - en ca ~ :?; It) u - 0 ... - It) 40 ca 6-~ :x 10 > ca - <a 40 > ,a: 9 ... 0 > Ct: co 8 c.. 0- Ct: u 7 :x 30 5 en - .- S 6_)( 0 30 tI'I It). ~ 5 -0 c: 20 0. 10 4 ::::1 0 4 ... 20 Q 3 10 15 3 10 .2 0 20 2 0 FIG. 5-5. Soil support valve-S-for the AASHTO Design Method. (Reprinted with permission of the American Association of State' . Highway and Transportation Officials from AASHTO Guide for De- ' sign of Pavement, 1972.) .~ ,:. - ~~~ , .'~ ...:,-::"j-'~ ~,("- :':..-~'T:- /, 2. '- Obtain (or estimate) the- ~quivalent daily number of 18000-1b (8~kN) load.;.~~.;~ applications. . . .~. . -~ '.>.~.)~~~". .~~)~~i!.t 3. Determine the stnictura/ number, SN~ from fig. 5-6.-(Suggested vatues'ror,;.,i1~,,:; ...-.....,...~.............'!"...~.~.;' regional factors are shown in that figure.) _ :.. ,<~';\'.;'~~~~<;f-~- - ::~:J~~El~~i. .-"'~ i..;.-.... ~ PRAIRIE HEIGHTS PAVEMENT DESIGN - AASHTO METHOD SEE PREVIOUS PAGE FOR INPUT IN DOUBLE BOXES <0 STREET ClASSIFICATION~ INITIAL AADT: II 4.000 GROWTH RATE:~ 5 SOIL TEST RESULTS 1.MUST1. BE SUBMITTED I WITH THIS WORKSHEET II /. OF AADTT:~ 5 II DESIGN LIFE' 20 YEARS DESIGN (EAU ~ 370.406 II RELIABILITY LEVEL ml.):li 85 XII STANDARD DEVIATION (So) II 0.45 II INITIAL SERVICEABILITY INDEX (Pi)' 4 2 TERMINAL SERVICEABILITY INDEX (Pt)'11 2.30 II LPSI = Pi - pt .. 4.2 - I 2.30 I.. I 1.90 I SUBGRADE Mr .. 1000 + (555 x R) RV ALUE FROM SOIL TEST.. I 65 I..> Mr 137.230 psi I USING AASHTO DESIGN METHOD' SN .. I 1. 70 I, PROVIDE NOMOGRAPH OR CALCULATIONS. SN .. (A, D, ) + (A2D2) + (A3D3) + (A...D...) STRUCTURAL COEFFICIENT CLASS B ASP HAL T CONCRETE ASPHALT TREATED BASE CSTC OR CSBC BALLAST 1.7=(0.42x2)+(0.14x2)=(0.10D) 0=5.8" USE: ASPHALT 2" CRUSHED SURFACING 2" GRAVEL BASE 8" SPANAWAY (SM OR GM) CBR 40-80 ASSUME CBR=35 Mr=1155+555R Mr=37.230 A1 =0.42 A2=0 34 A3"0 .14 A4=0 10 ~~~i~~ ~-i1-.....w~-' ~~~~r ;,~' -~2'~'~::~~~~~;::-::", Highway Pwa,--;;;;~D;;;p'- J~~ - ,. ~. ~ " i:' r s . eo :C Q .... 8' .... .. ("of 1"'1 . ("of + In .I~ . 1-0 .... ~j - ~ Q .... .... 4- 4Q N ~ . . + Q Q .... . 8' . -0 ~ + ~ . Q I - .... 4- is Q .... 8' .... .. \0 ,., . G\ fa +0 CI] ; .. =:; N I . eo ~: .... 8' .... --:r~1~~~~$!3~'~ ~-~~,""'~,,'~ '~-_1":'.A.,.....,.........._....._-_._,,~ "XG~~"'0 '$c"~'" ..~~ . .;.. ...;.- .... ... z ~ (I) . (I) .: " Cl. .. ----, cO ~ ---. e \J) ... :J .- Z .. '0 0 ..J ... >- ~ :J U :J D ... 0 ... en .. u c: -; <It CIl "- Iii .. (/) .. c: Q CIl '" Wi OJ' 0 (lsd) liw 'snlnpO;'4 IUa! I!Sa!:l 0 I!OS paqpoo!:l aA!I:laH3 ri iii II fa 0 Cl. Z 0 ~ (I) .. ~ In 0 0 It) 0 ;: In In .. 0 10 0 ~ .. en .. .. (I) :J .. .. Q., 0 rr: "0 ~- a: (I) ~ <J (I) \ \ \ ~, .,/ (SUO!JI!W) III M 'suo!lD~!ldd'Q' pD~ allf'Q' 'fOUIS IUa,DA!nb:; dP!-SI ID.O! 'p"DWIIS:; , ....-J ~ '110/ . ilJ,... ,., 0 .. ~ ;."':'K ~ (%J ~ '.(Hl!qD!~ij 000 ... .. ., f I , 11 ~ ...... ( ?) ':;:~~:7k 8-15 -':'-~' .:=.::::;:!~:~~: ,,..'.......~ :";-':.::.: - ::l Cl. .5 &. o II I>> .. Q - . I>> ::l 'ii > C II I>> E Cl c .. ::l C Q " <<I . II ~ . - C <<I E <<I > II C. <<I :s 'i I>> ;: .. I:) - 1:: IS &. o C Cl .. I>> C .... M I>> .. ::l Cl ~ ~yal~!~~ti. . .... . . ~ VELM, WASHINGTON 98597 AFFIDAVIT OF PUBLICATION STATE OF WASHINGTON. County of Thurston D.R. Miller , being first duly sworn on oath deposes and says that she/he is the edi tor of the Nisqually Valley News, a weekly newspaper That said newspa- per is a legal newspaper and has been approved as a legal newspaper by order of the superior court in the county in which it is published and it is now and has been for more than six months prior to the date of the publications hereinafter referred to, published in the English language continually as a weekly newspaper in Thurston County, Washington, and it is now and during all of said time was printed in an office maintained at the aforesaid place of publication of said newspaper Hearing Vancil Rd. / That the annexed is a true copy of Prairie Heights Preliminary Plat as it was published in regular issues (and not in supplement form) of said newspaper once a week for a period of 1 6 May . 19 93, and ending on the 6 day of May ,19 93 both dates inclusive and that such newspaper was regularly distributed to its subscribers during ai/ of said period. That the full amount of the consecutive weeks, commencing on the day of 21.00 fee charged for the foregoing publication is the sum of $ which amount has been paid in full. b i O. ~-Il).~ Subscribed and sworn to before me this 7 day of May 19 g':) &~II~ Notary Public in and for the State of Washington, \) ! '",. ') )' . r~ding'at Ve/m, Washington. ; I 1" \ 1\ ~ , This form officially Sanctioned 'by the Washington Ne~pape(>P;U)bfjshe\rs. : ',A.ssociation . \ ) ) NOTICE OF PUBLIC HEARING VANCIL RD/PRAIRIE HEIGHTS . PRELIMINARY PLAT CITY COUNCil ACTION The Yelm City Council will hold a public hearing at 7 30 p,m, on Wednesday, May 12, 1993, to receive comments o~ a proposed 63 lot subdivision on Vancil Rd, south of Yelm Avenue. The ~eas proposed for subdivision more speclfical. Iy are described as being: In the SWv. and SEV. of the NEV. of Section 30, Township 17 North, Range 2 East, W,M, Approx: 16 acres. , This hearing will be held at Yelm City Hall, 105 Yelm Avenue West, Yelm, WA, All interested parties are invited to attend, Written comments should be directed to the Yelm City Council and mailed to P 0, Box 479, Yelm, WA 98597 or delivered to City Hall. Comments must be received prior to the hearing to be considered by the council. ':'? ATTEST Agnes 'Colombo,city clerk Published in the Nisqually Valley News Thursday, May 6,1993. 'I: "i; -:; ,I.':;',:: ~!""': " , "iW!~.,~~'~~ii;;i~AtJS'i R.~ :-~~~~~~~-"'X. . , .< , ";~~" ~ ---.. , . _~...i!l. -'l.....W..r~~ A Home-Owned Legal Newspaper in Thurston County YELM, WASHINGTON 98597 AFFIDAVIT OF PUBLICATION STATE OF WASHINGTON County of Thurston D.R. Miller , being first duly sworn on oath deposes and says that she/he is the editor of the Nisqually Valley News, a weekly newspaper That said newspa- per is a legal newspaper and has been approved as a legal newspaper by order of the superior court in the county in which it is published and it is now and has been for more than six months prior to the date of the publications hereinafter referred to, published in the English language continually as a weekly newspaper in Thurston County, Washington, and it is now and during all of said time was printed in an office maintained at the aforesaid place of publication of said newspaper Notice of Public That the annexed is a true copy of Hearing Vancil Rd./ Prairie Heights Prelim... as it was published in regular issues (and not in supplement form) of said newspaper once a week for a period of 1 29 day consecutive weeks, commencing on the of April 19 93 ,and ending on the 29 day of April ,19 93 both dates inClusive and that such newspaper was regularly distributed to its subscribers during all of said period. That the full amount of the fee charged for the foregoing publication is the sum of $ 21.00 which amount has been paid in full. b rn (~~ Subscribed and sworn to before me this 30 day of 19 9'1 April otary Public in ~,Il~ for the iate of Washington, . ~'Y .....,l' .,..:" \ J /~din~ at Yelm, Wash~ngton. ~ \!li~{:l~M,t'i"I~-::"i~,,:;~;~~ ~:' :~~': 1,1. "This form officiallY"'sanctioned by the "J,,;;l ~,' fcW~hington Ne~paPer.PU'bjishe~"eAssociation :ff~:;;' f~t;;f~ jf~; ;.~-:;::' ';,!;' " -.... ~t~~ ';, ?"!""~;~~~~;;(S~:.~:" ,t7.: ~'r ,,:,\ "f:., NOTICE OF PUBLIC HEARING VANCIL RDIPRAIRIE HEIGHTS PRELIMINARY PLAT CITY COUNCIL ACTION The Yelm City Council will hold a public hearing at 7::30 p.m,i,on,Wednesday, May 12,1993,~0 receive comments on a proposed 63 lot subdivision on Vancil '6d. soutt}, of )'elm Avenue. The:areas propOsed for Subdivision more specifica/- )y are,descrlbed as being: ,. .,;,~O' "I.n the S,#Vi'and SEY-,of the'NEY- of section30i-Township 1.7 i-:!orth,Range 2 East, ,W,M. Approx: 16 acres.}" .i';.~.This hearing will be held at YelmCity tHaJ1,1 05Yelm Avenue West, Yelm,WA. All interested parties are invited to attend. ~Written <comments should be directed to nhe''(elrri'City <?>u",cil and'.tnailed to PO ; Box 479iYelrti,WA 98597, or delivered .:to CitY HaJi~,Comments must.be receiv- ii~~~~~i~~~~l\~~~!;~~~!:~r~ed f~\Y~~blished;iri'the'NiSquaily' VaJleyNews ;~:rhursday,jApiil 29,L1993, "~~;~,,,,;'.; ,~ :\,,:,,\';,(,:;.,Of~: '<,' (':: ;' ":(;iiY> c~J!~~Y~lfu ~. 105 Yelm Avenue West POBox 479 Yelm, Washington 98597 (206) 458-3244 NOTICE OF PUBLIC HEARING VANCIL RD /PRAIRIE HEIGHTS PRELIMINARY PLA1 City Council Action The Yelm City Council will hold a public hearing at 7'30 p m on Wednesday, May 12, 1993 to receive comments on a proposed 63 lot subdivision on Vancil Rd south of Yelm Avenue The areas proposed for . subdivision more specifically are described as being. In the SW 1/4 and SE 1/4 of the NE 1/4 of section 30, Township 17 North, Range 2 East, W M Approx' 16 acres This hearing will be held at Yelm City Hall, 105 Yelm Avenue West, Yelm, WA All interested parties are invited to attend Written comments should be directed to. the Yelm City Council and mailed to POBox 479, Ye~m, WA 98597 or delivered to City Hall Comments must be received prior to the hearing to be considered by the Counc il Attest, ~/) ,;) /! I /7) , /, 'MlfJ /~ l t"fj')JI!)( Agnes Col bo City Clerk -------------------------------------------~---------- DO NOT PUBLISH BELOW THIS LI E Publ ished: Nisqually Valley News: f.h tJ; Mai led to property owners within AOO DA~t.: Pos t ed a t pub 1_ i c 1 oca t ion: 1elm " 'D.)'f:rt CR.) '\ i,-:I..".. *-' .- , Jo'J 'l" .l~ Ruycie4paper ,,', " 1 "r- I 1 @ o o ~ ~ ,.. >- ~ c ., l' ., Q ~ o ~ - ::. , - - u Z ~ "- ,.,. '"RAVEL DRIVE ----- 'U..,p HOUSE-:; .::-of:~ OP::N S?~C:: FOR OlV!SION mE b TWO ~6 I n I IE I ~ ! 2':) I 21 I I 22 2: ~5 :0 ------------------i 1 ".>.R/"El.l. I I 1.clJ8lLEHO\.€ i I , 13 2 ---... , 12 11 10 9 5 NOTICE OF' PUBLIC HEARING, VANCIL ROAD/PRAIRIE HEIGHTS PRELIMINARY pLAT AND MITIGATED , DETERMINATION OF NONSIGNIFICANCE ,~" '." ., The City of Yelm Planning Commission will hold a public hearing at 4'00 p,m, on Monday;,May 3, 1993; to rece,ive com- ments on'a prop'()sed 63-lotsubdivlsion',;,' on Vancil-Road, south of Yelm Avenue::. The areas proPosed.for subdivision are more specifically'described as being:' In the SW '4. and SEV. of the NEV. of Section 30; Township 17 North, Range 2 East 'W.M, Approx: 16 acres, This hearing , will be held atYelm City Hall,,J05,Yelm Avenue West, Yelm,.WA. All interested parties are invited to attend." Written comments should be directed to"" theYelm'Plannirig'Cominission'and mail-. ' ed t():PO Box:479. Yeim;'WA9859i" or delivered to citY Hall. COinrTll~rits' must berlj'ceived prior to the hearing to be cons,idered by"the commission. '~;':;'!' The City of velm as lead agency for this proposal has detennined that this pro" psoai after mitigation does not have ~ pro- bable significant. adverse impact.. This';" decision ;wasm_ade after rexiev.tof aneii:' (! ,vironmental;"i~;'Checklist f:J;i:mitigationi,iO 'measures and other ,infonnation on, file ,witf{the lead agenc/This infcinnation is' iivaiJabletto""ih'e'~pubifc"'"on:requesi::;:this":; ;MONS is i~tied ur:Jder;J:~i:;.1,r7340'(2);' '. ti1e\'r'ead ag'eiicy,~riottact;Qh;~is pro- , ,pOsai for 15 dayitfiom)h'e date:of issue.,; Comments 'mustbes~b;nitted'bY'May 3" !:1993..ThisMONS is not;a,~emiit and . do13s'Yiibf b'~?Ji~e( consititut}3C( ~:~pP~?X~{~~),~~~\(~~t~l~-, . .... "~'. .~::~~;~. 0~For more infonnation regard1rlg the pro- ~:8.c:>s~~:\:1~~~di~i,~1?n.}:<ir}Y~p.te~B1:::'9.f!~:~h~ " ~r.10N.S;~:please con!act;:ry P~~ersfln;,CI-' fty] PlannerivafVelirl'CitY ,Hall'or,'at(2Q6) . . . . . . >, .~F~1~~:~'~>~3~ii>> otary Public In and for,the'State of Wastungton ')(;- ."f ,.g;,.-,,,..,.., .""""''''''1.'"" J '/ .,.'" '.) L' /,~ '~' ~'<' I',H~I!~n:~~L!~;me,,~~uall. ' J .;. ~"":"\1' ~":'; ",.., "cr..:w;.'~, 'r ,'" " :\Thursday;"'i[\pril'22.H9Q3,__ ",: ,;'"\,V:~~~~~~~~~ j ~S"; ~as~~l~m;~'!';~~~i)::;~;!,:;';c ''fit~~~:~~'ii:~!;~~it%f<l)c;~'~~p~;~i~~~:}::~~}:; - "i;{it\W:~.('f,'.'tl:~;i('j/i:"!~~:f'Thls"formfofficiaIIY SanCti8n~d:b.:~i)t~e; ,e,' , ~ , ., '" P Ii '?~;~l' 1'WciShington N~Wspaper PublisharS'~ASSOciation "p;;,;~'l',:",r,;".,~,',',~,;,,:,";,'t~"; :;:~ . ,', ", , . ~: ;'I;~ ,,~ ,~.~" '/ ~i" YELM; WASHINGTON 98597 AFFIDAVIT OF PUBLICATION STATE OF WASHINGTON County of Thurston D.R. Miller , being first duly sworn on oath deposes and says that she/he is the edi tor of the Nisqually Valley News, a weekly newspaper That said newspa- per is a legal newspaper and has been approved as a legal newspaper by order of the superior court in the county in which it is published and it is now and has been for more than six months prior to the date of the publications hereinafter referred to, published in the English language continually as a weekly newspaper in Thurston County, Washington, and it is now and during all of said time was printed in an office maintained at the aforesaid place of publication of said newspaper That the annexed is a true copy of Notice of Public Hearing Vancil Rd. /Prairie Heights Preliminary... as it was published in regular issues (and not in supplement form) of said 1 newspaper once a week for a period of consecutive weeks, commencing on the April 22 day 93 of 19 , and ending on the 22 day of April . 19 93 both dates inclusive and that such newSpaper was regularly distributed to its subscribers during all of said period. That the full amount of the fee charged for the foregoing publication is the sum of $ 39.00 which amount has been paid in full. 't,,:.,\ P / ?>~ ~~ Subscribed and sworn to before me this 23day of April 19 93 ~~H 't:; '.:~r '" .",':.," CITY OF YELM STAFF REPORT PLANNING COMMISSION HEARING APRIL 19, 1993 CASE: PRELIMINARY PIAT OF PRAIRIE HEIGHTS APPLICANT: EAR. ENTERPRISES REQUEST Approval of a 63-1ot Prelrmmary Duplex Plat to construct 126 new resIdentIal umts. GENERAL INFORMATION A. ApplIcant: E.A.R. Enterpnses P G.B 875 Yelm, W A 98597 B LocatIOn. VancIl Road south ofYelm Avenue C Legal DescnptIOn. In the SW 1/4 and SE 1/4 of the NE 1/4 of sectIOn 30, TownshIp 17 North, Range two East, W.M. D Land Area. ApproXImately 16 acres PROJECT DES CRI Pf ION The applIcant proposes to dIVIde two separate parcels totalmg apprmClmately 16 acres, mto 63 duplex lots provuhng 126 new resIdentIal umts In addItIOn, the applIcant proposes a 6,400 square foot area to be deSIgnated as open space The open space tract IS mtended to meet open space reqUIrements for both parcels and IS located m the northern most sectIOn of DIVISIOn Two Access to all lots WIll be provIded by constructIOn of new mternal roadways connectmg to VancIl Road. Yelm sewer and water IS proposed to serve the completed proJect. The applIcant proposes a phased development whereby approxImately 16 lots WIll orIgmally be developed on mtenm septIc tank and dramfield systems. The remamder of the lots will not be Issued bUIldIng permIts untIl such tIme the CIty sewer system IS operatIOnal and the eXIstmg umts have been converted to the sewer system. BACKGROUND The subject property was recently annexed and rezoned under Ordmance #447 The property IS not wIthm a lOa-year flood plam or wIthm the )urIschctIOn of the Shorehne Master Program. The property IS identIfied as bemg wIthm an aqUlfer senSItIve area. TopographIcally, the subject property IS mostly flat WIth a small nse m the southern portIOn of the sIte VegetatIOn on-sIte IS compnsed pnmanly of pasture grass wIth scattered fir trees and scotch broom. Surrounchng land uses consIst of scattered smgle famIly resIdences on large lots and lImIted agrIcultural actIvItIes NOTIF1CATION Wntten notIce of the publIc hearmg was sent to all property owners wIthm 300 feet of the sIte and notIce was pubhshed m the Nisaually Valley News on April Z21993, at least ten days prIOr to the hearmg ENVIRONMENTAL EVALUATION A MItIgated DetermmatIOn of Non-SIgnIficance (MDNS) was Issued on l.\-IS1993 and became final on S-?J 1993 APPLICABLE SECrIONS OF THE YELM LAND USE REGULATORY CODES CIty of Yelm Zonmg Ordinance, SectIOn 6 City ofYelm Comprehensive SubchvIsIOn Orchnance CIty ofYelm Open Space Orchnance Dramage and ErosIOn Control Manual for the Thurston RegIOn. STAFF ANALYSIS A. The subject applIcatIOns comply WIth the ZOnIng reqUIrements of SectIon 6 for multI famIly development. The proposed denSIty IS 7 9 UnIts per acre and approval is contmgent upon the project hookmg up to the CIty'S new sewer system Yelm CIty water WIll also serve thIS site B The Mitigated DetermmatIOn of Non-SIgnIficance (MDNS) conchtIOns estabhsh reqUlrements for erOSIOn control, traffic Impact mItigatIOn and stormwater reqUlrements. The PlannIng Department beheves the mItIgatmg measures outlmed m the MDNS should become conchtIOns of approval If the prelImmary plat IS approved. C The Proposed subchvisIOn conforms WIth the reqUlrements of the ComprehensIve SubchvIsIOn Ordmance and therefore, the publIc use and mterest will be served. D The project proposes an open space tract along the entIre north lIne of the SIte ThIS open space wIll serve to buffer thIs development from eXIstmg reSIdences to the north. There is currently an eXIstIng sIngle famIly resIdence located In the proposed open space In order to ensure the open space IS aVaIlable for use by all the resIdences In the subdIvIsIOn, the eXIstIng house should eIther be removed from the sIte or remodeled In such a manner that It provIdes a recreatIOnal/commumty amenity for the area. E OrdInance #445 provides gmdelInes for the establIshment of open space wlthm newly created resIdentIal neIghborhoods. The purpose of these open space areas IS to provIde greenbelts and recreatIOnal opporturut18s for resIdences of the subdIVIsIOn. Stormwater faculties may be placed In open space areas as long as the design does not take away the useabIlIty of the open space Any proposed retentIOn areas shall be broad In nature WIth shallow SIde slopes so as not to create a hole or pIt, or desIgned In such a way that the retentIOn area IS a water feature and vIsual ameruty to the open space F Senate House Bill 2929 reqUIres that findIngs be made In order to approve a prelImInary plat. Those findIngs are as follows Appropnate provlSWns must be made for the publze health, safety and general welfare and such open spaces, dramage ways, streets or roads, alleys, other publze ways, potable water supphes, samtary waste, parks and recreatwn, playgrounds, schools, and all other relevant facts mcludmg su1ewalks and other planmng features that assure safe walkmg condLtwns for students that only walk to and from school. The PublIc Works Department reVIew of the proposed Improvements will ensure that stormwater, streets and roads for thIS urban plat WIll meet all mIrumum deSIgn reqmrements. The plat WIll receive sewer and water servIce form the CIty of Yelm, thereby assurIng adequate prOVISIons for domestIc water supply and samtary waste dIsposal. The plat proposes communIty open space School chIldren are bussed to Yelm School SItes. For those chIldren who wIll walk to school or to nearby commercIal actIVItIes, the PublIc Works Department requIrements stIpulate the constructIOn of SIdewalks WIthIn the plat as well as SIdewalks and/or paved shoulders along VancIL Road thereby provIdIng safe walkIng condItIOns. All findIngs can be met for the publIc health, safety and general welfare STAFF RECOMMENDATIONS Based upon the above analysIs, the Planrung Department recommends approval of the PrelImInary Plat subJect to the follOWIng condItIOns' A. PrIor to final plat approval, all reqmrements of the Thurston County EnVIronmental Health Department shall be met regardIng the mtenm on-SIte septIC systems and future sewer servIce, and all reqmrements of the PublIc Works Department regardIng proposed unprovements shall be met. B PrIOr to final plat approval, the applIcant and the Thurston County EnVIronmental Health Department shall deternune, whIch lots wIll be served by Interrm on-SIte septIc systems. The fmal plat map shall IdentIfy those lots to be served by mtenm systems and shall promInently note that no buIldIng permIts WIll be issued for the other lots m the plat untIL such tune as sewer servIce becomes aVaIlable C The Commumty area open space shall be dedIcated on the final plat map The communIty area open space shall be owned and maIlltamed by a homeowners aSSOCIatIon or the lot owners III common and shall be so desIgnated on the final plat. D All condItIOns set forth III the MDNS for thIs proposal shall be met. E Any stormwater Improvements proposed III the open space shall be desIgned III such a way as to not take away the useablhty or aesthetIc value of the open space NOTICE OF PUBLIC HEARING VANCIL RO /PRAIRIE HEIGHTS PRELIMINARY PLAT AND MITIGATED DETERMINATION OF NONSIGNIFICANCE The city of Yelm Planning Commission will hold a public hearing at 4:00 p m on Monday, May 3, 1993 to receive comments on a proposed 63 lot subdivision on Vancil Rd south of Yelm Avenue The areas proposed for subdivision are more specifically described as being' In the SW 1/4 and SE 1/4 of the NE 1/4 of section 30, Township 17 North, Range 2 East, W M Approx: 16 acres ThlS hearing will be held at Yelm City Hall, 105 Yelm Avenue West, Yelm, WA All interested parties are invited to attend Written comments should be directed to the Yelm Planning Commission and mailed to POBox 479, Yelm, WA 98597 or delivered to City Hall Comments must be received prior to the hearing to be considered by the Commission The city of Yelm as lead agency for this proposal has determined that this proposal after mitigation does not have a probable significant adverse impact This decision was made after review of an environmental checklist mitigation measures and other information on file with the lead agency This information is available to the public on request This MONS is issued under 197-11-340(2); the lead agency will not act on this proposal for 15 days from the date of issue Comments must be submitted by May 3, 1993 This MONS is not a permit and does not by itself constitute project approval For more information regarding the proposed subdivision or appeal of the MONS, please contact Ty Peterson, city planner, at Yelm City Hall or at (206)258-8408 MONS Issued Apr i 1 15, 1993 Attest, Agnes Colombo DETERMINATION OF NONSIGNIFICANCE Description of proposal 63 Lot Residential Subdivision with proposed roadways and infrastructures. Proponent E.A.R. Enterprises Location of proposal J including street address, 11 any Vancil Road S.E.. South of Yelm Ave., Yelm, WA. Lead agency City of Yelm The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment An environmental impact statement (EIS) is not required under RCW 43 21C 030(2)(c) This dec1sion was made after review of a completed environmental checklist and other information on file with the lead agency This information is available to the public on request o There is no comment period for this DNS ~ This DNS 1S issued under 197-11-340(3), the lead agency w1lI not act on this proposal for 15 days from the date below Comments must be submitted by Mav 3. 1993 Responsible official' Kathryn M. Wolf Position/title. Mayor Pro-Tempore Phone (206) 458-3244 Address PO BOX 479 YELM WA 98'197 ~4, In..Jf4/ 1I1~/ (k,.. ~J Date April 15. 1993 Signature (Optional) o You may appeal this determination to (name) at (location) no later than by (method) You should be prepared to make specific factual objections Contact to read or ask about the procedures for SEPA appeals. o There is no agency appeal T\SEPADNS FRM ,;/?- DETERMINATION OF NONSIGNIFICANCE Description of proposal 63 lot residential subdivision with proposed roadways and infrastructures. The plat is to be called Prairie Heights. Proponent E.A.R. Enterprises Locat1on of proposal, including street address J if any Vancil Rd, South of Yelm Ave.. Lead agency C":ity of Yplm The lead agency for this proposal has determined that it does not have a probable significant adverse 1mpact on the environment An environmental impact statement (ElS) is not required under RCW 43 21C 030(2)(c) This dec1sion V/aS made after re'iew of a completed environmental checklist and other information on file with the lead agency This 1nformation is available to the public on request There is no comment period for this DNS ~ This DNS is issued under 197-11-340(3) J the lead agency will not act on this proposal for 15 days from the date below Comments must be submitted by May 3, 1993 Responsible official KcYL~1 W d \\1- Position/t1tle Mayor Pro-Tempore Phone (206) 458-3244 Address PO BOX 479 YELM. WA 98597 Da t e 4 / 14 /93 Signature i(~) .0 )1-4- (Optional) o You may appeal this determination to (name) at (location) no later than' by (method): You should be prepared to make specIl1c factual objections, Contact to read or ask about the procedures for SEPA appeals o There is no agency appeal T\SEPADNS FRM -, ~ ~ ,--.1 " ,--.1 --. LJ ,...., ~ ,...., ~ 'I PRAIRIE HEIGHTS o Preliminary Drainage Report 'I --J 'I proponent: E.A.R. Enterprises P. O. Box 875 Yelm, WA 98597 (206) 458-2894 LJ ,..., Date: Howard N. Godat, P.E. Howard Godat & Associates, Inc. 2708 Westmoor Court, S.W. Olympia, WA 98502 (206) 943-1599 April 8, 1993 LJ Engineer: '1 LJ ,..., LJ 'l L.J ,..., e-J '1 LJ ~ LJ ! ~ 'l LJ 'I 'u '1 c.J 'I --J TABLE OF CONTENTS 'I I. FACILITY SUMMARY FORMS. 3 ---J II. ENGINEERS CERTIFICATE . 9 '1 LJ III. DRAINAGE REPORT 'I ~ Section 1 - Project Description. . . . . . . . 10 Section 2 - Existing Conditions. . . . 11 Section 3 - Soils Report . . . . . . . . . . . 11 Section 4 - Wells/Fuel Tanks . . . . . 11 Section 5 - Subbasin Description . . . 14 Section 6 - 100 Year Flood Analysis. . . . 14 Section 7 - Aesthetic Considerations . . . . . 14 Section 8 - Downstream Analysis. . . . . . 14 Section 9 - Covenants, Dedications and Easements 23 IV. EROSION CONTROL '1 ---J 'I I I ~ 'I ~ n A. B. C. D. E. Construction Sequence. . Sediment Traps . . . . Site Restoration . . . Geotechnical Analysis. Inspection Sequence. . . . . 24 24 24 24 24 L.J 'I V. MAINTENANCE AND OPERATION PLAN. . 25 u VI. APPENDIX n LJ A. Environmental Check List '1 LJ 'l L.J n LJ i ~ 'l I LJ 'l u 'I u 'I LJ -, -.J -, -.J THURSTON REGION FACILITY SUMMARY FORM --. complete one for each facility (detention/retention) coalescing plate filter, etc...) on the project site. Attached 8 1/2 x 11 sketch showing location of facility. -.-J ---, ~ Proponent's Facility Name or Identifier (eg, pond A): Pond A Name of road or street to Access Facility: Vancil Road 'I u '1 Hearings Examiner Case Number: N/A o Development Rev. Project NO/Bldg. Permit No.: N/A Parcel Number: 227-30-140501, 227-30-140600, 227-30-14050, 222-30-130100 and 227-30-130600. ~ 'l 'l To be completed by Utility Staff: LJ Utility Facility Number .. u Parcel Number Status, (num, lch) .... 0, Known: 1, Public; 2, Unknown; 3, unassigned Basin and Sub-basin: (num, 6ch). . . . . . . (2ch for basin, 2ch for sub-basin, 2ch future) Responsible jurisdiction: (alpha, lch). . . (O)lympia, (C)ounty, (T)umwater, (L)acey 'l LJ 'l 'l LJ 'I Part l Project Name and Proponent Project Name: prairie Heights Project Owner: E.A.R.Enterprises proj ect Contact: Erling Birkland Address: P. O. Box 875, Yelm, WA 98597 Phone: (206) 458-2894 Project Proponent: (ifdifferent) Address: 'I LJ 'l u LJ 'l LJ Phone: 'l i LJ Project Engineer: Howard N. Godat, P.E. 'I J Firm: Howard Godat & Associates, Inc. Phone: (206) 943-1599 'l , LJ 'I ~ Page 3 '1 U '1 I LJ Part ~ Project Location " Section . . 30 LJ Township. 17 North n Range . . . . . . . 2 East, W.M. LJ Name and Addresses of Adjacent Property Owners: n J '1 I LJ n J Part 1 ~ of Permit Application Type of Permit (eg, Commercial Bldg): Clearing and utility " I LJ other Permits (circle): n DOF/W HPA COE Wetlands FEMA Shoreline Management Encroachment Other. . . . COE 404 DOE Dam Safety Floodplain Rockery/Retaining Wall Grading n I LJ , u " u n Other Agencies (Federal, State, Local, etc. ) that have had or will review this Drainage and Erosion Control Plan: u n N/A u " LJ 'l I U '1 u 'I J : LJ 1 LJ Page 4 'I L.J 'I J Part! Proposed Project Description What stream basin is the project in (eg, Percival, Woodland): Yelm Creek 'I L.J " L.J Zoning: . On-Site: R-2 'I J Residential Subdivision: I o Number of Lots: . . . . . 63 Lot Size (average, acres) . 0.3 'I I o 'I t.J Building Permit/Commercial Plat: Building(s) Footprint, acres: . Concrete Paving, acres: . rr Gravel Surface, acres:. LJ Lattice Block Paving, Acres:. 'I L.J Public Roads (including gravel shoulder), acres: Private Roads (including gravel shoulder), acres: 2.82 " L.J On-Site Impervious Surface Total, acres: . . . . 2.82 '1 L.J rr u n \ u 'I I U 'l , LJ 'I t.J 'I ! LJ I LJ Page 5 I J 1 ~ Part ~ Pre-Developed Project Site Characteristics Stream through site y/n: . . . . . . . . . . . . No I ~ Name: . . N/A I i ~ DNR Type: N/A 'l J Type of feature this facility discharges to (ie, lake, stream, intermittent stream, pothole, roadside ditch, sheet flow to adjacent private property, etc.: 1 ~ Groundwater. Swales, Ravines y/n:. . . . No I J Steep Slopes, (steeper than 10%) y/n:.. . . Yes Erosion Hazard, y/n: No ~ I ~ 100 Year Floodplain, y/n: Wetlands, y/n:. . . . No No 'l ~ Seeps/Springs, y/n: No 'l High Groundwater Table, y/n:. Other:. . No LJ 'l LJ " LJ 'I LJ 'l u 'l I U ~ I I U ~ U ~ J ~ J Page 6 'I LJ 'I L...3 'I Part ~ Facility Description: Total Area Tributary to Facility Including Off-Site (acres) . . . . . . . . . . . . . . . . 16.64 L...3 Total On-Site Area Tributary to Facility (acres):. . 16.64 'I 'l \ ~ Design Impervious Area Tributary to Facility (acres): 2.82 Design Landscaped Area Tributary to Facility (acres): 13.82 Design Total Tributary Area to Facility (acres):. .. 16.64 , L.J I I c.J Enter 1 for the Type of Facility: 'I Wet Pond Detention ....... o Wet Pond water Surface Area, Acres . 'I LJ Dry pond Detention . . . . . Underground Detention. . . . . . . . n LJ Infiltration Pond. . . . . 1 I Dry Well Infiltration. LJ Coalescing Plate Separator n Centrifuge Separator LJ other. ............. n LJ Outlet Type (Enter 1 for Each Type Present): Filter n LJ Oil/Water Separator. n Single Orifice . u Multiple Orifice . I , Weir . . . . . LJ n U Spillway . Pump ( s ) . Other. . . . 'i ; LJ 1 n , LJ 'l Page 7 LJ If , u If J Part 7 Release to Groundwater -- 'l I LJ Design Percolation Rate to Groundwater (if applicable): n I U Part ~ Release to Surface Water (if applicable) 'l I U n I LJ Empty: '1 ! LJ 'l LJ 'l , u 'l I U n u n , u n LJ If i U n I LJ 'l LJ 'l J 'l U 'l ! ~ Thurston County MSL Elevation (ft) Percent Design Full volume ( cu. ft.) 0.0 2 in./hr. Discharge to Surface Water (cfs) 0.0 o 25 50 100 Page 8 n J n LJ PROJECT ENGINEER'S CERTIFICATE n LJ n "I HEREBY CERTIFY THAT THIS DRAINAGE AND EROSION CONTROL PLAN FOR PRAIRIE HEIGHTS, YELM, WASHINGTON, HAS BEEN PREPARED BY ME OR UNDER MY SUPERVISION AND MEETS MINIMUM STANDARDS OF THE CITY OF YELM AND NORMAL STANDARDS OF ENGINEERING PRACTICE. I UNDERSTAND THAT THE JURISDICTION DOES NOT AND WILL NOT ASSUME LIABILITY FOR THE SUFFICIENCY, SUITABILITY, OR PERFORMANCE OF DRAINAGE FACILITIES DESIGNED BY ME." u " I LJ '1 I U n I LJ n }1-~ LJ Howard N. Godat, P.E. Howard Godat & Associates, Inc. n I LJ n ~ n LJ 'l L.1 LJ n J EXPIRES 3 -11/ - Q~ - ~ ) L.1 'I u n J n i U '/ U n LJ n LJ Page 9 I ~ f h I i ~ r tJ I h r r h f ~ ~ ~ \ I PROJECT DESCRIPTION: The proponent of this residential subdivision is applying. for preliminary plat approval and will be applying for clearlng, grading and utility permits when the final designs are submitted to the City of Yelm for their review and approval. This project is located on the Vancil Road, 530 feet south of State Route 507. The legal description of this project is as follows: Division One: Lots 2, 3 and a portion of Lot 1 of Short Subdivision SS-1412 as recorded in volume 14 of Short Plats at Page 120, records of Thurston County, Washington. Division Two: The Northeast quarter of the Southwest quarter of the Northeast quarter of Section 30, Township 17 North, Range 2 East, W.M., EXCEPT the East 15 feet thereof conveyed to Thurston county for road purposes, ALSO That part of the Southeast quarter of the Southwest quarter of the Northeast quarter of Section 30, Township 17 North, Range 2 East, W.M., lying Northeast of the Yelm Irrigation District south lateral ditch as the same existed on October 6, 1954 situated in Thurston county, washington. The assessor's tax parcel numbers are 227-30-140501, 227-30-140600, 227-30-14050, 227-30-130100 and 227-30-130600. This project is zoned residential multi-family residence, R-2. No other permits are known to be required for this project. This project will create sixty three (63) residential lots when the project is completed. The project will be constructed and platted as one project or in two divisions. A maximum density of one unit per acre will be constructed with temporary on-site septic systems until the City's S.T.E.P. sewer is available. A dry-line S.T.E.P. sewer will be constructed at this time along with the remaining infrastructure for this subdivision. Detention ponds and infiltration trenches will be utilized to infiltrate the stormwater runoff into the native soils. There will not be a point of discharge from this project, all stormwater will be infiltrated into the native soils. , LJ I I I n ~ I G i I Best Management Practices such as the use of filter fabric fences, straw mats and plastic sheeting will be used during construction to prevent siltation of the existing and proposed storm drainage facilities. All disturbed areas shall be stabilized and seeded after the roadway and utility construction is complete. There will be an erosion control plan prepared as part of the final designs of this project. Page 10 h I ' ~ t \ ' u r r r t ~ r r r t Li-J \ t, ~ t I EXISTING CONDITIONS: This property and the surrounding area is very open with very few trees or understory. The existing cover is mainly grasses as this site has been used as pasture land in the past. The land, generally speaking, slopes from the north to the south with the average slope being approximately 1.8%. The steepest slope on this site is approximately 14%. There is no defined drainage coarse(s) entering or leaving this property. Any stormwater runoff that would find its way onto this property from off-site is by sheet flow. There are no creeks, lakes, wetlands, gullies, steep slopes or other environmentally sensitive areas on this site or immediately down gradient of this site. This property is located in an Aquifer Sensitive Area as mapped by Thurston County. There are no other known reports or plans that will impose additional requirements on this project. SOIL REPORT: The SCS soil survey for Thurston county has mapped this area as a Spanaway gravelly sandy loam. This is consistant with the soil test pits that were dug on this site. The soil log map and the soil descriptions can be found at the end of this section of this report. The Spanaway series soils is a very deep somewhat excessively drain soil that was deposited by glacial meltwater of the vashon Glacier as it receeded. This soils series has a low water holding capacity and has a high hydraulic conductivity. The permeability is moderately rapid to very rapid with infiltration rates in the range of 2.0 to 6.0 inch/hour. Erosion of this soil is slight and runoff is slow. The SCS hydrologic group for the Spanaway soil is a Class liB". Groundwater was not encountered in any of the soil test pits. Soil Log #1: 0" 28" Dark Brown Loam, Type 4 28" 65" Light Brown Fine Sand, Type 3 Roots to 34" (Few Gravels) Soil Log #2: 0" 15" Dark Brown Gravelly Loam, Type 4 15" 24" Gravelly Loamy Sand, Type 3-4 24" 35" Light Brown Gravelly Sand, Type 2-3 35" 55" Light Brown Medium Sand, Type 2 Roots to 30" U I rh I I ~ I I , D I I Page 11 1 1 1 I t ! ~ ~ T t t t t t r LfJ r ~ r b Soil Log #3: 011 1911 1911 33" 3311 6311 Soil Log #4: 011 15" 1511 2811 28" 4111 4111 6311 Soil Log #5: 011 3111 3111 6511 Soil Log #7: 011 2311 2311 3011 3011 5011 50" 6511 Soil Log #10: 011 2411 2411 53" 5311 60" Soil Log #11: 011 3611 3611 6511 Soil Log A: 011 2011 2011 6211 Soil Log B: Dark Brown Loam, Type 4 Dark Brown Loamy Sand, Type 3-4 Light Brown Very Gravelly Medium Sand, Type 2 Roots to 6011 Some Cobbles Dark Brown Loam, Type 4 Dark Brown Loamy Sand, Type 3-4 Light Brown Very Gravelly Medium Sand, Type 2 Sandy Gravelly, Type 1 Dark Brown Loam, Type 4 Gravelly Medium Sand, Type 2 Dark Brown Loam, Type 4 Dark Brown Loamy Sand, Type 3 Light Brown Gravelly Medium Sand, Type 2 Clean Medium Sand, Type 2 Dark Brown Gravelly Loam, Type 4 Extremely Gravelly Medium Sand, Type 2 Sandy Gravel, Type 1 Roots to 5311 Dark Brown Loam, Type 4 Light Brown Gravelly Medium Sand, Type 2 Dark Brown Gravelly Loam, Type 3-4 Light Brown Gravelly Medium Sand, Type 2 Some Cobbles 011 3311 Dark Brown Loam, Type 4 3311 6011 Light Brown Gravelly Medium Sand, Type 2 h ! I U I I o , I I C Page 12 'l LJ 'l LJ 'l L.J 1 LJ 'l LJ 'l L.J 'l I LJ SL-4 SL~ . . ~ SL~ 'l -, ..... +- LJ 'l ~ 'l L.J '1 L.J '1 LJ 'l LJ 'l LJ 'l LJ '\ LJ '1 LJ g ~ I . -1 ~ ~ ~I ~I N ~ ~ 1" = 200 I I I I llt"- I I I) U PR.~][JR.][E JHIE][G-JHIJr-S SO][L LO~S J 'l LJ ,... WELLS: LJ LJ There are two wells on this site that will be abandoned as per the State Department of Ecology standards for well abandonment. Potable water for this project will be supplied by the City of Yelm. ,..., 'l FUEL TANKS: LJ 'l I LJ There are no known fuel tanks on this site nor are any planned as part of this project. SUB-BASIN DESCRIPTION: 'l ~ This proj ect is located in the Yelm Creek Sub-Bas in of the Nisqually Drainage Basin as mapped by Thurston county. u The off-site tributary area for Division One is approximately 12 acres and Division Two, the off-site tributary area is approximately 10 acres. Both off-site areas for the most part are undeveloped and is being used as pasture land. The average slope of the land is approximately 1.5% for both off-site tributary areas. There is no evidence that any runoff from the off-site area is entering this site in a define drainage channel. If runoff is entering this site it is by sheet flow across the existing terrain. Since the existing soils are very porus with very high infiltration rate, the runoff rate is very low. If LJ n u n n All the stormwater runoff from this project will be infiltrated into the native soils. There will not be a metered release rate to off-site properties. There are no emergency services located on or in the immediate area of this project. There are no known hazardous materials that will be handled on this site or transported in the area tributary to this projects drainage facilities. n u 'l LJ LJ n 100 YEAR FLOOD ANALYSIS: u This proj ect does not contain or abut a stream nor is this projected located within a 100 year flood hazard zone. 'I LJ AESTHETIC CONSIDERATIONS: 'I ~ All disturbed areas of this project will be seeded upon completion of construction. The biofilter swales and detention ponds will be seeded or sodded with a grass seed mixture compatible for this use. I) I LJ DOWNSTREAM ANALYSIS: n J The stormwater runoff for this project has been modeled using the "HYDRA" stormwater computer modeling program. The results from this model have been compared to minimum requirements stated in the manual. The HYDRA model can be found in the Appendix of this report. The minimum requirements are calculated below. 'I LJ n Page 14 , LJ 'l LJ 'l 'l AREAS: Division One - Total Site Roads & Driveways Future Houses Disturbed Area 4.77 Acres 0.62 Acres 0.83 Acres (2,000 S.F./Lot) 3.32 Acres LJ 'l LJ LJ Division Two - 'l 'l Total Roadways & Driveways Future Houses Disturbed Area 11. 87 Acres 2.16 Acres 2.07 Acres (2,000 S.F./Lot) 7.64 Acres LJ LJ n Minimum Storage volume, Vm Division One - v = (6,000 x 0.62) + 3.32 x 2,000) m V = 10,360 C.F. m Division Two - V = (6,000 x 2.16) + (2,000 x 7.64) m V = 28,240 C.F. m Biofil ter Minimum Area, A : m Division One - Am = 2,00 x 0.62 A = 1,240 S.F. m Division Two - Am = 2,000 x 2.16 Am = 4,320 S.F. n LJ 'l LJ 'l LJ 'l LJ 'l LJ LJ n Storage Volumes Provided: LJ Division One - '1 '1 I LJ The stormwater runoff for this division will be stored in an infiltration trench. The runoff will percolate into the native soils from this infiltration trench. The design infiltration rate is 2 in./hr. (30 min./in.). The infiltration trench will be located below the roadside biofilter swale. The swale shall be lined with a PVC liner or a very low permeable soil so that the runoff does percolate out of the swale before being treated. The stormwater runoff will enter the infiltration trench by means of catch basins located in the swale. The storage volume provided is as follows: LJ '1 U 11 LJ LJ V = 1,280 L.F. x 4.51 x 6.01 x 0.30 (30% void ratio) V = 10,368 C.F. 10,368 C.F. > 10,360 C.F. OK 'l '1 J Page 15 'l u ,---, LJ o ROADS I 0/ SWALE /FILTER FABRIC MI RAF I 140 OR EQUAL .. ---"-"----------------"1 1\ . o. J l / 9 '~'~J ~ LJ r-: '\ n u ,---, ,---, C) lD a'(1 ,. , 0 · ~.<~ I o C' I I . Q I . . .'- D' . Q. 8" PERF I PIPE: u LJ ,---, LJ .. ^ WASHED ROCK ,---, , D D ." I '. _ 00 . co""," J .. ...0 .. .J:':'-.... -'.._". _.... _.. _.... -.. .-.. u J 4 50 J ,---, LJ TRENCH DETAIL n u Division Two - u The stormwater runoff for this division of the project will be stored and infiltrated into the native soils via an infiltration pond as shown below The pond has been sized for 41,257 cubic feet of storage as calculated using the HYDRA model. storage volume calculations are as follows: ,---, u ,---, '\ Elevation Area w u 343.0 344.0 344.5 28,879 S.F. 29,092 S.F. 35,767 S.F. 29 ,092 + (28, 879 x 29,092)'/2] ,---, 'l v, = 1/3[28,879 + v, = 28,985 C.F. V2 = 0.5 [29,092 3 V2 = 16,186 C.F. V + 35,767 + (29,092 x 35,767)'/2] n u n u ,---, v V = V, + v2 = 28,985 + 16,186 = 45,171 C.F. , u , LJ '\ Page 16 u 'I LJ 'I LJ 'I LJ ,..., LJ '1 LJ " ~? FL!=l EL 343 0 TOP EL 346 + / y '1 OWL EL 344.50 LJ 'l LJ F Ol'-JD DETA.I L 'I \ LJ ,..., L.J 'I L.J The final designs for this project will show the sizes of all the storm drainage system components. All materials and installation of the system components shall be the City of Yelm standard specifications. LJ 'l LJ Below is the "HYDRA" computer model for sizing the storage volumes of both divisions of this plat. 'I 'l L.J 'I LJ 'I u 'l LJ 'l L.J 'l LJ 'l Page 17 LJ 'l I U 'l L.J HGA INC OL Y, WA HYDRA Version 4.65 L.J =========================================================================== ~ status of DEFAULTS at start of run. ( * May be reset by SET) Listing of acceptable diameters (Changed by the PCO command): 4 6 8 10 12 15 18 21 24 27 30 33 36 39 42 45 48 54 60 66 72 78 84 90 96 102 108 114 120 132 +-------------------------------------------------------------------- 1: JOB PRAIRIE HEIGHTS 100 YR STM ANALYSIS 2: TOT 6.15 'l Command file : C:\HYDRA\CMD\3018PRE.CMD Input units are read as Warnings are turned * Output sent to display * Output sent to printer * Output sent to file Paper width in inches String to reset printer String to set printer to compressed String to set printer to 8 lines/inch Name of printer Print heading at top of page Number of steps in hydrograph Step length in minutes Significant flow in hydrograph Infiltration Diurnalization Factor * Maximum plot value Type of hydrographic plot Sanitary flow by Delay to start of actual storm Rational Method computations SCS computations Continuous simulation computations LJ ,---, u ~ LJ ,---, LJ ,---, LJ ,---, LJ '1 LJ ,---, LJ * Maximum diD for pipe design/analysis * Match point position on pipe * Number of allowable diam drops * Mimimum drop thru manhole Manning's n Routing technique II L.J 'l LJ * Calculate sanitary flows * Calculate infiltration flows * Calculate misc flows II LJ '1 U II u USA OFF Brief Off Detailed 8.000 NOT SET NOT SET NOT SET NOT SET ON 96 15 0.010 0.980 Selected by HYDRA Compact peaking Factor 0.00 OFF Santa Barbara ON 0.900 0.00 or Invert 999 0.000 Fixed Quick ON ON ON Total rainfall 6.15 Inches n LJ 3: FIL 100Z0NEl.INC ------START OF SUB-FILE------ '1 LJ 'l u Page 18 ("j LJ ("j LJ " L.J ("j ~ ("j LJ r---r i LJ '1 LJ '1 J 'l J 1: HYE 15 0.091 0.091 0.091 0.091 0.091 0.091 0.106 0.123 0.12 3 0.123+ 0.159 0.159 0.159 0.159 0.176 0.202 0.212 0.212 0.236 0 .236+ 0.248 0.279 0.308 0.308 0.323 0.323 0.412 0.412 0.373 0 .373+ 0.971 2.514 0.553 0.367 0.508 0.391 0.389 0.539 0.579 0 .333+ 0.449 0.466 0.292 0.292 0.272 0.272 0.272 0.272 0.272 0 .272+ 0.234 0.234 0.215 0.237 0.241 0.259 0.259 0.259 0.237 0 .237+ 0.227 0.227 0.208 0.189 0.189 0.189 0.164 0.164 0.151 0 .151+ 0.151 0.151 0.151 0.151 0.151 0.151 0.151 0.151 0.151 0 .151+ 0.151 0.151 0.151 0.151 0.151 0.151 0.151 0.151 0.151 0 .136+ 0.136 0.136 0.121 0.121 2 : 3 : 4 : 5 : 6 : 7 : 8 : 9 : 10 : PRAIRIE HEIGHTS 100 YR STM ANALYSIS 0.121 0.121 Step time Total in original hyetograph Total volume rain in production hyetograph Maximum intensity 15.00 6.15 6.15 2.51 Minutes Inches Inches IncheslHr '1 LJ 11: RET ------ END OF SUB-FILE 4 : 5: EPD .012 2 .90 'l , LJ J J 'I I LJ 'I LJ 'l LJ 'l LJ ("j LJ ("j u Mannings n Minimum velocity Did Exfiltration 0.0120 2.00 FeetlSec 0.9000 0.00 Inches 6: DPD .012 8 1 1 2 .0001 .90 36 Mannings n Minimum diameter Minimum depth Minimum cover Minimum velocity Minimum slope Did Maximum diameter 0.0120 8.00 Inches 1.00 Feet 1.00 Feet 2.00 FeetlSec 0.000100 0.9000 36.00 Inches 7: CHD 100 .1 .035 3 2 3 .1 0 0 0 0 8 : 9: NEW DIVISION ONE 10: SCS 4.77 .16 98 61 27.0 !RD'S & DWY'S=IMP AREA Total Time of Concentration 27.00 Minutes Total rainfall falling on impervious Impervious runoff Portion off impervious 17038.06 CuFt 16224.91 CuFt 95.23 % Page 19 'l LJ <l L.J PRAIRIE HEIGHTS 100 YR STM ANALYSIS " Peak CFS rainfall falling on impervious Peak CFS runoff from impervious Equivalent "C" off impervious u <l Total rainfall falling on pervious Pervious runoff Portion off pervious LJ " Peak CFS rainfall falling on pervious Peak CFS runoff from pervious Equivalent "C" off pervious L.J " ~ Total rainfall falling on segment Total segment runoff Portion off segment Peak CFS rainfall falling on segment Peak CFS runoff from segment Equivalent "C" off segment " u " u " 11: INL 99 12: RED (0/0 7560/.70 15000/.80 20000/.85 50000/.90) 13: RES 347.50 350 350 OVERFLOW u " Number of points on Volume/Discharge curve Maximum capacity of reservoir Inlet elevation Outlet elevation Link number Average daily sanitary flow @Adding sto into Event @Adding Diurnal into Design @Adding Event into Design L.J " LJ " LJ Average Design Flow Storm flow (no SF) Design flow including SF Combined SF " LJ " 14: 15: NEW DIVISION TWO 16: SCS 11.87 .18 98 61 34.3 Total Time of Concentration LJ 'I Total rainfall falling on impervious Impervious runoff Portion off impervious LJ 'I LJ Peak CFS rainfall falling on impervious Peak CFS runoff from impervious Equivalent "C" off impervious " u Total rainfall falling on pervious Pervious runoff Portion off pervious n LJ " Page 20 i LJ 1.93 CuFt/Sec 0.96 CuFt/Sec 0.50 89449.81 CuFt 30096.73 CuFt 33.65 % 10.16 CuFt/Sec 1.01 CuFt/Sec 0.0994 106487.87 CuFt 46321.64 CuFt 43.50 % 12.09 CuFt/Sec 1.97 CuFt/Sec 0.16 5 INFINITE 347.50 Feet 350.00 Feet 1 0.000 CuFt/Sec 0.00 CuFt/Sec 1.968 Cuft/Sec 1.968 Cuft/Sec 1.000 34.30 Minutes 47698.53 CuFt 45300.14 CuFt 94.97 % 5.42 CuFt/Sec 2.45 CuFt/Sec 0.45 217293.29 CuFt 72739.05 CuFt 33.48 % " LJ " LJ PRAIRIE HEIGHTS 100 YR STM ANALYSIS " Peak CFS rainfall falling on pervious Peak CFS runoff from pervious Equivalent "C" off pervious LJ " Total rainfall falling on segment Total segment runoff Portion off segment Peak CFS rainfall falling on segment Peak CFS runoff from segment Equivalent "C" off segment LJ " LJ '1 24.68 CuFt/Sec 2.15 CuFtlSec 0.0870 264991.82 CuFt 118039.19 CuFt 44.54 % 30.09 CuFtlSec 4.60 CuFt/Sec 0.15 LJ 17: INL 99 18: RED (0/0 10000/.65 28800/1.33 50000/1.40 100000/1.50) " 19: RES 345 346 346 OVER LJ Number of points on Volume/Discharge curve Maximum capacity of reservoir Inlet elevation Outlet elevation Link number Average daily sanitary flow @Adding sto into Event @Adding Diurnal into Design @Adding Event into Design '1 LJ " LJ " LJ Average Design Flow Storm flow (no SF) Design flow including SF Combined SF " L.J 20: END '1 5 INFINITE 345.00 Feet 346.00 Feet 3 0.000 CuFt/Sec 0.00 CuFt/Sec 4.597 Cuft/Sec 4.597 Cuft/Sec 1.000 o F PRAIRIE HEIGHTS 100 YR STM ANALYSIS L.J 'l ------ SUM MAR Y A N A L Y S I S ------ L.J Run number on command file Number of links Number of hydrographs Total sanitary population Total sanitary area Total storm area Number of pumps Number of reservoirs Number of diversion structures Number of inlets Length of new pipe Length of existing pipe Length of channel Length of gutter Length of transport units Length of pressure pipe " L.J " u 'l u 'l LJ " LJ 'I Page 21 , LJ 8 4 52 o 0.00 Acres 16.64 Acres o 2 o 2 0.00 Feet 0.00 Feet 0.00 Feet 0.00 Feet 0.00 Feet 0.00 Feet rJ LJ rJ u rJ u rJ LJ rJ LJ rJ u rJ LJ rJ LJ n LJ rJ LJ n u rJ u 'l LJ n LJ n LJ n LJ n LJ n I LJ 'l J PRAIRIE HEIGHTS 100 YR STM ANALYSIS ---------------------------------------------------- Lateral length= upstream length= o o *** DIVISION ONE Reservoir Link Invert -------------- Up/Dn/Ovr Cost Exfil Maximum Flow Values ----------------- San Inf sto Mis Design 2 347.50 Incoming 0 350.00 Discharge 350.00 Overflow Stored 0 0.00 0.00 1. 97 0.00 1. 97 0.00 0.00 o 0.00 0.00 o 0.73 0.00 9767 0.00 0.00 o 0.73 0.00 9767 ---------------------------------------------------- Lateral length= upstream length= o o ---------------------------------------------------- Lateral length= o upstream length= o *** DIVISION TWO Reservoir Invert -------------- Maximum Flow Values ----------------- Cost Link Up/Dn/Ovr San Inf sto Mis Design Exfil 4 345.00 Incoming 0.00 0.00 4.60 0.00 4.60 0 346.00 Discharge 0.00 0.00 1. 37 0.00 1. 37 346.00 Overflow 0.00 0.00 0.00 0.00 0.00 Stored 0 0 41257 0 41257 0 ---------------------------------------------------- Lateral length= o upstream length= o Page 22 " LJ " LJ COVENANTS, DEDICATIONS AND EASEMENTS: " The dedications and easements for this project will be shown on 'the final plat. Covenant for a Homeowner's Association will be filed with the final plat. u " LJ " LJ " LJ 'I LJ " u " LJ " LJ " u " LJ " LJ rr LJ 'I I u 'I u " u 'I I LJ ~ u Page 23 ,..., LJ r----, u EROSION CONTROL PLAN: u A. Construction Sequence and Procedure: Prior to the commencement of any clearing, grading or filling activity for these improvements, all erosion control measures, including installation of a stabilized construction entrance if required, shall be installed in accordance with the details and specifications shown on the erosion control plan. 'I U n n B. Trap Sediment: The installation of a filter fabric fence as shown on the erosion control plan to treat silt laden runoff from the exposed soils. As indicated in Section IV-A of the drainage and erosion control manual, protection of proposed and existing storm drainage facilities is an absolute necessity. Additional erosion control measures may be necessary during construction and is the contractor's responsibility to ensure that erosion to future and existing drainage facilities does not occur. LJ n LJ 'I ~ n LJ C. Site Restoration: n 11 All disturbed soils shall be seeded upon completion of this project. street trees and shrubs shall be planted as shown on the plans. All other exposed areas shall be seeded with a grass seed mixture. u u D. Geotechnical Report: n 11 There are no slopes steeper than 25% on or near this project. The average slope is 1.5% in the project site. Since the 25% slope is not exceeded on this project, a geotechnical analysis is not required. u u E. Inspection Sequence: n ~ City of Yelm and Howard Godat & Associates shall inspect all erosion and drainage facilities for this project. All erosion control devices shall be inspected prior to constructing of this project commences. LJ n n LJ n L.J n LJ n L.J 'I ~ Page 24 l Ll ~ MAINTENANCE AND OPERATION PLAN: L.J A. Introduction: ~ ~ The storm drainage for this project include catch basins, a piping conveyance system, a grass lined biofilter swale, an infiltration pond and an infiltration trench. LJ LJ B. Responsibility: LJ Operation and maintenance of the storm drainage facilities within the public rights-of-way is the sole responsibility of the City of Yelm. The association will maintain the infiltration pond. Schedule: ~ LJ " c. ~ u Maintenance of the drainage facilities shall, as a mlnlmum, follow the schedule outlined in the tables included in this manual as they apply to the facilities of this proj ect. Inspection of all facilities shall be performed per the maintenance schedule and corrections shall be made if the llcriteria" for attention is met. u rI ~ D. Cost: u rI Cost for performing maintenance and corrective measures for the drainage facility is estimated to be $500.00/year. u " u rI LJ ~ LJ rI u " u " u " u 'l LJ 'l J Page 25 'l LJ 'l Page 1 of 2 LJ APPROXIMATE MAINTENANCE SCHEDULE FOR DRAINAGE SYSTEM COMPONENTS 'l LJ FACILITY n TYPE LJ n LJ Filter vaults 'l Open ponds, channels LJ n LJ n LJ n LJ n LJ n LJ 'l LJ n LJ n LJ 'l LJ 'l LJ 'I Closed detention systems LJ 'l J '1 LJ MAINTENANCE PROBLEM .................................... Plugging Trash & Debls \ Poisonous vegetation Pollution Unattended ground cover Rodent holes in berm Tree growth Erosion of slope faces Settling of berms Sediment Spillway or rock revetments damage. Plugged air vents Debris & Sediment ........................................ ........................................... " CRITERIA FOR ATTENTION ESTIMATED MAINTENANCE FREQUENCY (Years) ......................................... ............................................ Backup In conveyance system 1 cubic foot per 1000 sq. feet, plugged trash rack. If multiple use facility and presence of tansy. report, poison oak, stinging nettles, devils club. etc. Presence of oil, gas, or other contaminants which could cause plant damage, could constitute a fire hazard, or threatens water quality Site does not fit Into neighborhood Evidence of rodents or piping through dam. Trees interfere with maintenance. (do not remove If not a problem) Signs of erosion or potential for erosion. Settling of 4" or more. More than 1 0% of design volume Is lost. Filter outlet loses 15% of capacity Soil Is unprotected and subject to erosion Half of vent area Is blocked Sediment exceeds 10% of depth for 1/2 the length of storage vault or any point deeper than 15% of depth. .5 1 1 1 2 5 5 10 15 2 12 1 1 --. L.J 'l Page 2 of 2 APPROXIMATE MAINTENANCE SCHEDULE FOR DRAINAGE SYSTEM COMPONENTS LJ II LJ 'l FACILITY TYPE LJ ............. 'l LJ ,., LJ 'l LJ Flow restrictor (orifice) ,..., LJ ,., LJ ,., Infiltration systems L.J 'l Catch basins L.J 'l LJ II L.J (\ Pipes L.J <l U Open channels 'l U " LJ ,..., U 'I ~ ........................................ ............................................ MAINTENANCE PROBLEM CRITERIA FOR ATTENTION ESTIMATED MAINTENANCE FREQUENCY (Years) ......................................... ............................................ Cracks In facility or inflow Iou tflow/pipes Groundwater infiltration Structural failure. Tank, pipe or vault is bent or collapsed so that 10% or more of volume Is lost. Trash bUild-uP Less than 1.5 feet from orifice down to debris bUild-up or blocked orifice. Structural Damage Failed connectors, out of plumb, ladder unsafe, corrosion, etc. Capacity loss (blindIng) System falls below 90% of design hydraulic capacity Sediment bUild-uP More than 1/3 of depth to lowest invert is silted. Structural damage Frame out of flush by 3/4", cracks in walls, settlement, rotation, etc. Pollution High levels of 011, grease, toxins, etc. present. Sediment 20% of depth Structural Dents decreasing area by 20%. cracks allowing groundwater Intrusion, corrosion Sediment, vegetation Sediment depth exceeds 20% of design depth or vegetation exceeds design height. 20 20 1 20 2 .5 to 1 20 .5 2 10 2 J :'I cJ rl o rl o " 1...-1 A.PPEN1Yli{ A. " o " o " o 1\ o " o " o l\ , \ rt LJ 'l LJ '1 LJ 1 rt L.J 2 rt L.J rt 3 LJ 'l 4 L.J 5 rt LJ rt u n LJ 'l LJ 'l LJ n L.J rt L.J rr LJ n LJ n u n LJ ~ J ENVIRONMENTAL CHECKLIST Proponent (c) Address Town of Yelm Apr II 8, 1993 E.A.R. ENTERPRISES P. O. BOX 875 YELM, WA 98597 (206) 458-2894 HOWARD GODAT & ASSOCIATES, INC. 2708 Westmoor Court Olympia, WA 98502 (206) 943-1599 Phone Representative Address Phone Property Address or Location (e) Vancil Road, S.E. SW 1/4 and SE 1/4 of the N 1/4 of Sec. 30, T18N, R2E, W.M. Tax Parcel # (g) 227-30-140501, 227-30-140600, 227-31-30100 and 227-30-130600 1/4 SIT IR (f) 6 Total Acres 16 Acres, more or less 7 Permit Type Preliminary Plat Approval Residential Multi-Family (R-2) 8 9 10 11 Zoning Shorel ine Environment NIA Water Body NIA Brief Description of the Proposal and Project Name 63 lot residential subdivision with the proposed roadways and Infrastructures. The plat Is to be called Prairie Heights. 12 13 Estimated Completion Date Summer, 1993 List of al I Permits, Licenses or Government Approvals required for the Proposal (federal, State and Local Including Rezones): Clearing, grading, utilities, building and right-of-way access. 14 Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain There are no plans for additions of this project beyond the Division One and Division Two boundaries. 15 Do you know of any plans by others which may affect the property covered by your proposal? If yes, explain There are no ~nown plans by others that will affect this project. 16 Proposed timing or schedule (including phasIng, If appl icable Division One completed by Summer, 1993. Division Two completed by Fall, 1994. 1 'I i LJ 'I LJ 17 List any environmental information you know about that has been prepared, or wi I I be prepared, directly related to this proposal The only ~nown environmental Information that has been " prepared for this area Is that this project lies within the LJ aquifer sensitive area as mapped by Thurston County. " To be Completed by Appl icant LJ 1 Earth LJ a General description of the site (circle one) Flat, rol ling, hi I Iy, steep slopes, mountainous, other " 'I Roiling b What is the steepest slope on the site (approximate percent slope) LJ LJ The steepest slope on this site Is approximately 14%. located In the southwest corner of Division Two. c What general types of soi Is are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soi Is, specify them and note any prime farmland " LJ 'I n There are two soil types on this project: fine sand; Spanaway gravelly sandy loam. NlsQually loamy LJ " d Are there surface indications or history of unstable soi Is in the Immediate vicinity? If so, describe LJ NO n e Describe the purpose, type and approximate quantities of fi I I ing or grading proposed. Indicate source of fl I I Any L.J " Grading of roadway. There will be approximately 3.500 C.Y. of material to be graded on this site. f Could erosion occur as a result of clearing, construction or use? If so, generally describe Rainfall runoff could cause erosion to unprotected areas. The site shall have erosion measures in place as per the Drainage Design and Erosion Control ~anual for Thurston County Region Washington. g About what percent of the site wi I I be covered with impervious surfaces after project construction (for example, asphalt or bui Idlngs)? Approximately 45% of the site will be Impervious with roadways and houses. n ~ n L.J " L.J LJ n LJ h Proposed measures to reduce or control erosion, or other Impacts to the earth, If any On-site erosion control fencing, siltation pond Installation of storm drain system and retention piping as per the Drainage Design and Erosion Control ~anual for Thurston Region Washington. 'I LJ 'I LJ 'l J 2 " L.J ,..., L.J 2 Ai r " a What types of emissions to the air would result from the proposal (I e , dust, automobile, odors, Industrial wood smoke) during construction and when the project Is completed? If any, generally describe and give approximate quantities if known. Dust during construction, exhaust emission from construction equIpment. Increased auto emIssion from completed project. b Are there off-site sources of emissions or odor that may affect your proposal? If so, generally describe Two roadways; state Route 507 and Vancil Road. " LJ " u LJ ,..., c Proposed measures to reduce or control emissions or other Impacts to air, If any Dust Control Measures during construction, Standard Emission control devices for project site. ,..., u LJ 3 Water " a Surface LJ 1) Is there any surface water body on or in the Immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names If appropriate, state what stream or river It flows into L.J " " There are no surface waters on or In the Immediate area of this site. u " 2) Wi I I the project require any work over, In. or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans u NO LJ 3) Estimate the amount of fl I I and dredge material that would be placed in or removed from surface water or wetlands and Indicate the area of the site which would be affected Indicate the source of fi II material " n L.J NONE u 4) Wi I I the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known " NO " LJ 5) Does the proposal I Ie within a 100-year floodplain? If so, note location on the site plan 'I ~ NO '! J 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge NO 'I , u 'l J 3 ,.--, LJ 'I LJ b Ground 'I 1) WI I I ground water be withdrawn or wi I I water be discharged to ground water? Give general description, purpose, and approximate quantities if known Stormwater runoff will be Infiltrated Into the native soils of this site. ,.--, LJ LJ 'I 2) Describe waste material that wi I I be discharged into the ground from septic tanks or other sources, If any (for example domestic sewage, industrial waste containing the fol lowing chemicals. , agricultural) Describe the size of the system, the number of such systems, the number of houses to be served (If appl icable), or the number of animals or humans the system(s) are expected to serve I U ,.--, J ,.--, c Proposal wi I I be served by proposed S.T.E.P. sewer system. Water Runoff (including stormwater) 1) Describe the source of runoff (Including storm water) and method of collection and disposal, If any (Include quantities, If known) Where wi I I this water flow? WI I I this water flow Into other waters? If so, describe Stormwater runoff from the proposed roadways will be collected In roadside swales which wi II serve as a treatment facl I Ity as well as a disposal method. u ,.--, LJ 'l ~ u 2) Could waste materials enter ground or surface waters? If so, generally describe Untreated storm water can carry pollutants. ,.--, d Proposed measures to reduce or control surface, ground, and runoff water impacts, If any ,.--, LJ LJ 4 Plants Design of drainage system to best management practices. Installation of blofl Itratlon swales. The stormwater control and treatment shall be designed for the drainage design and erosion control manual for the Thurston Region. n 'I n a Check or circle types of vegetation found on the site deciduous tree; maple, other -X evergreen tree, fir, cedar, pine, other shrubs --- "T"" grass "T"" pasture crop or grain wet sol I plants, cattal I, buttercup, bulrush, skunk cabbage, Off1er water plants, water I I Iy, eelgrass, mi Ifoi I, other === other types of vegetation b What kind and amount of vegetation wi I I be removed or altered? LJ ,.--, LJ u ,.--, u 'I LJ Only that what Is necessary for the site Improvements and utility construction. c. List threatened or endangered species known to be on or near the site 'l u NONE KNOWN 'I J 4 'I u 'I LJ d Proposed landscaping, use of native plants, or other measurers to preserve or enhance vegetation on the site, If any Finish site to be landscaped and retention of natural vegetation where possible. Animals LJ 'I 5 'I L.J a Circle any birds and animals which have been observed on or near the site or are known to be on or near the site LJ birds hawk, heron, eagle, songbirds, other Robins Blue Jays. Wren. ChicKadee. Crow mammals deer, bear, elk, beaver, other rabbit fish bass, salmon, trout, herring, shellfish, b List any threatened or endangered species known to be on or near the site 'I LJ ~ '1 NONE KNOWN LJ c. Is the site part of a migration route? If so, explain ,..., NO LJ d Proposed measures to preserve or enhance wi Idl ife, if any 'I Retain useable native vegetation where possible. LJ 6 Energy and Natural Resources a What kinds of energy (electric, natural gas, oi I, wood stove, solar) wi I I be used to meet the completed project's energy needs? Describe whether it wi I I be used for heating, manufacturing, etc 'I LJ 'I Electric and/or gas heating and electric lighting. b Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe NO 'I LJ LJ L.J c What kinds of energy conservation features are Included in the plans of this proposal? List other proposed measures to reduce or control energy Impacts, If any Energy Efficient construction to State and N.W. Energy Code. 7. Environmental Health n n " a Are there any environmental health hazards, Including exposure to toxic chemicals, risk of fire and explosion, spi I I, or hazardous waste, that could occur as a result of this proposal? If so, describe LJ LJ NONE KNOWN 'I L.J 1) Describe special emergency services that might be requ I red " NONE LJ " LJ 'I 5 LJ II u II ~ 2) Proposed measures to reduce or control environmental health hazards, if any AI I lots shall be connected to the Town's S.T.E.P. sewer system. Domestic water service shal I be prOVided by the Town of Yelm. All existing wel Is on this site shal I be abandoned. u u " b Noise u 'l U 1) What types and levels of noise exist In the area that may affect your project (for example, traffic, eqUipment, operations) Existing traffic noises from State Route 507 and Vancl I Road. 2) What types and levels of noise wi I I be created by or associated with the project on a short- or long-term basis (for example, traffic, construction, operations, other)? Indicate what hours noise would come from the site. " LJ ~ u " Short term noise during construction phase - 7:00 A.M. to 9:00 P.M. Long term Increased auto noise from completed project. LJ 3) Proposed measures to reduce or control noise Impacts, if any " 8 Retain the native vegetation wherever possible. Land and Shorel ine Use u " LJ a What Is the current use of the site and adjacent properties? ThIs site and the surroundIng propertIes are currently residential housIng and farm land. Has the site been used for agriculture? If so, describe Yes It has. " u b " u c Describe any structures on the site Yes there are exIsting structures on this sIte. They Include houses. mobl Ie homes. barns and carports. " u u d Wi I I any structures be demo I Ished? If so, what? Yes. all structures are to be demolIshed or removed from thIs site. " " e What Is the current zoning classification of the site? u ResidentIal multi-family (R-2). f What Is the current comprehensive plan designation of the site? " u ResIdentIal multi-family (R-2). " ~ g. If applicable. what Is the current Shoreline Master Program designation of the site? N/A u u ~ J 6 "\ --J LJ h. Has any part of the site been classified as "environmentallY sensitive"? If so, specify Yes. this site lies within an aquifer sensitive area as mapped by Thurston County. I Approximately how many people would reside or work in the completed project? Assuming 6.2 residences per lot. there will be approximately 391 residents when this project Is completed for the full 63 lots. '1 ----.J '1 LJ ,..., LJ J Approximately how many people would the completed project displace? Approximately 9 people. k Proposed measures to avoid or reduce displacement Impacts, If any II L.J II '1 NONE LJ LJ I Proposed measures to ensure the proposa I Is compat I b Ie with existing and projected land uses and plans, If any Comply with Zoning Requirements II 'l 9 Housing a Approximately how many units would be provided, if any? Indicate whether high, middle. or low-income housing 154 low to middle Income housing units. b Approximately how many units, If any, would be el imlnated Indicate whether high, middle or low-income housing II LJ o II NONE L.J c Proposed measures to reduce or control housing impacts, if any 'l NONE L.J 10 Aesthetics 'l L.J a. What Is the tal lest height of any proposed structure(s), not Including antennae; what is the princIpal exterior buIlding material(s) proposed? '1 25' height. LP siding. L.J '1 b What views In the immediate vicinity would be altered or obstructed? L.J Change from native undeveloped land to a residential subdivision. II L.J c Proposed measures to reduce or control aesthetic Impacts. If any 'l Retain native vegetation where possible. LJ 'l ~ ! ~ 7 II LJ 'l LJ 11 Light and Glare a What type of I ight or glare wi I I the proposal produce? What time of day would It mainly occur? Parking and Building lighting, dusk to dawn II L.J LJ b Could light or glare from the finished project be a safety hazard or Interfere with views? II II NO LJ c What existing off-site sources of light or glare may affect your proposal? Il NONE LJ d Proposed measures to reduce or control I ight and glare Impacts, if any Il 12 Retain native vegetation where possible. Recreation LJ Il u a What designated and informal recreational opportunities are In the immediate vicinity? Golf course, City park and bike paths. b Would the proposed project displace any existing recreational uses? If so, describe LJ II 'I J NO '1 U c Proposed measures to reduce or control Impacts on recreation, Including recreation opportunities to be provided by the project or app II cant, if any This project will provide approximately 6,400 square feet of open space. The existing residential structure will be removed from the open space area prior to total bulldout of this plat. 'I J f\ J 13 Historic and Cultural Preservation 'l, ~ a Are there any places or objects listed on, or proposed for, national, state, or local preservation registers known to be on or next to the site I f so, genera II Y descr I be NONE KNOWN II LJ b Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural Importance known to be on or next to the site Il NONE KNOWN u c Proposed measures to reduce or control impacts, if any 'l NONE LJ 'l LJ Il 8 L.J '1 u 'l , 14 Transportation a Identify publ ic streets and highways serving the site, and describe the proposed access to the existing street system Show on site plans, if any LJ 'I LJ LJ Access shal I be from the Vancil Road, S.E.. b Is site currently served by publ ic transit? If not, what Is the approximate distance to the nearest transit stop? 'l 'l NO L.J c How many parking spaces would the completed project have? How many would the project eliminate? 'l 308 off street spaces. none eliminated. LJ 'l d Wi I I the proposal require any new roads or streets or improvements to existing roads or streets, not Including driveways? If so, generally describe (indicate whether publ ic or private) Yes. (1) The internal roadways shal I be constructed to 24 feet of paved surface. vertical curbing and concrete sidewalks on both sides of the street with the cul-de-sac having sidewalk on one side of the street only. (2) Frontage Improvements to Vane I I Road shal I be for an eventual 28 foot roadway section concrete curb. gutter and sidewalk. A minimum of 24 feet of paved roadway shal I be provided along the plat's frontage. (3) Off-site improvements shall Include resurfacing Vancl I Road from the northerly plat boundary north to Yelm Avenue. The resurfacing shal I Include two 11 foot driving lanes and a 4 foot paved shoulder on the westerly side for pedestrian use. e Wi I I the project use (or occur in the immediate vicinity of) water, rai I, or air transportation? If so, generally describe No. It wi II not use water. ral i or air transportation. f How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur 'l LJ 'l LJ 'l LJ L.J '1 L.J 'l LJ 'l 1.232 V.T.D. Peak morning & evening. u 'l g Proposed measures to reduce or control transportation impacts, If any LJ Construction of new roadways to serve this plat. 15 Publ ic Services 'l 'l a Would the project result In an Increased need for publ ic services (for example, fire protection, pol ice protection, health care, schools, other)? If so, generally describe Yes. Fire and Pol ice impact due to Increased facilities and population. b Proposed measures to reduce or control direct impacts on publ ic services, if any LJ 'l LJ LJ 'l AI I Improvements are to be constructed to al I current applicable codes u , u 9 'l LJ '1 LJ 16 Utilities a. Circle uti I Itles currently available at the site electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic sysrem:-other T V Cable '1 LJ LJ b. Describe the uti I Itles that are proposed for the project, the uti I Ity providing the service, and the general construction activities on the site or in the Immediate vicinity which might be needed '1 n Water & sewer service by Town of Yelm, puget Power electric service, U.S.West phone service, Telecable of Washington, T.V. Cable, Washington Natural Gas, gas service, Pacific Disposal refuse. All utility services to be extended to the site by others. LJ n LJ n u The above answers are true and complete to the best of my knowledge. I understand that the lead agency Is relying on them to make Its decision. SI!.{.~tq1 (l '1 LJ 'l ~P'E:- O~ Date Submitted 1993 LJ n LJ '1 LJ 'l LJ 'l LJ 'l LJ n LJ '1 LJ 'l LJ '1 u 'I i U 10 , It ~ ~ ~ ~ ~ -< o ~ < N < ~ ~ 'G'RAVEL OR I VE - --.......:- -- PUW> HOUSE -<>P r,~ OPEN SPACE FOR DIVISION ONE & TWO ~QJ 16 f7 18 19 20 22 21 23 15 30 29 24 14 45 ------------- -----; , f I ,I I GAR/ WELL MOB I LEHOl!E 2 4 o 10 9 12 11 5 WlTHTDWN' oFVELWREQUIREMENTS AND ~THE~ STANOARO--'----- SPECIFICATIONS FOR ROAD. BRIDGE AND IfJNICIPAL CONSTRUCTION', STATE Of WASHINGTON, LASTEST EDITION WITH ADMENDMENTS THERETO. PRIOR TO CONSTRUCTION A PRECONSTRUCTION CONFERENCE SHALL BE SCHEDULED WITH THE TOWN OF YELIoI DEPARTMENT Of PUBLIC WORKS UTILITIES INSPECTOR 1458-32441 THE OWNER e. HIS/HER CONTRACTORIS 1 NEEDS TO BE IN ATTENDANCE. '00 50 0 100 200FT SCI'LE ,". 100' DWS_ I -- I~~ J f -, i' "j" ~F' . ~ i ,:; .... .. c ~ I, 1 ~ fIl W Eo- C - U o fIl rn < 01 Eo- < Q o C Q D::. < ~ o :c 0> 0> 0> 0> <fl N _ fD , , ..., '" .... <fl 0> ..., ~ ~ :::! "- :\1 j; \1 'I~ il .1; " .l! U'\ 0:: i ~ ,!! ~ 8 ~ :11 -I 1l:::2 oil :> 0 en '1 () ~ ~II <.!J ~ ~ ii! ~ tn:5:. '1j -..J :;: a.. ..i ~ '" ~!I ~ ~ c5 :!j () ;i ill :1t I;: ~ ~ ." ~ ~ I~ I " I ... i: I r.ff) ~ = ~ ~ ~ = ~ ~ ~ ~ ~ ~ ~ SHEET' _ OF ...L /kev I nfJ018 INDEX' 3018-1. dcIn 'In,. TO EAR ENTERPRISES FROM CITr OF YELM PLANNING DEPT DATE 3/18/93 SUBJECT PRAIRIE HEIGHTS ENVIRONMENTAL REVIEW AND CONDITIONS OF MONS Please 1ncorporate the following statements into the Envlronmental Checkl1st The followlng amendments must be made before a Mitlgated Determlnatlon of Non-Slgn1flcance 15 1ssued You can elther reVlse the answers or attach an add1t1onal page Section 3d., pg. 4 - The DNS should amend tlus answer to read, "The stormwater control and treatment system shall be deSIgned per the gmdehnes of the Thurston County Dramage Manual for the Thurston ReglOn," Section 811., pg. 7 - Tills sectlOn should be amended by the DNS to state that the SIte lIes wltlun an aqulier sensItlve area as defined by the Thurston County Health Department and as mchcated by the applIcant ill the background sectlOn, number 17, page 2 Sections 8i & 9a, pg. 7 - Based upon mformatlOn proVlded by the applIcant m these sectlons, would lead us to belIeve 77 duplex lots are beillg proposed. Tills IS mconsIstent WIth the applIcatlon willch states 64 duplex lots are bemg proposed and the prehmmary plat map wluch shows 63 duplex lots. The applIcant should prOVIde m wntmg updated mformatlOn so that the CIty IS clear ill it'S records what IS bemg proposed. On March 9, 1993 we met wLth the applLCant where he stated that 63 lots are now bemg proposed, 126 duplex umts some lots may be developed as sLngle famdy umts Section 12c., pg. 8 - Per CIty ordmance 445, the project IS reqUITed to prOVIde a mmrmum 6,300 square feet of open space for recreatlOnal opporturntles The applIcant proposes 6,400 square feet willch meets tills standard. The eXlstIng smgle family resldentlal structure located m the open space tract, must cease from remammg a reSIdentIal hVlng urnt. EIther the structure must be removed from the SIte or, remodeled as a commumty/recreatlonal amernty to the open space for the use by the reSIdents Section 14d., pg. 9 - Tills sectlOn should be amended statmg the agreement between the CIty and the applIcant on what street unprovements are to be made 1 The mternal roadways shall be buLlt to the followmg standard. 50 feet of mtenor nght-of-way, 24 feet of paved roadway surface, vertIcal curbmg, concrete sldewalks on both SIdes of all through streets, SIdewalks on one SIde of all cul-de-sacs 2 Frontage Improvements to Vancil Road WIll be reqUITed mcludmg, provIdmg half street rmprovements for an eventual 28 foot roadway sectIon, concrete curb, gutter and SIdewalk. At a mmrmum, an adilltlonall0 feet of new roadway surface must be placed on the OppOSIte SIde of the centerhne ill order to proVlde a 24 foot dnvmg surface on VancIl Road. 3 Off SIte rmprovements will mclude the resurfacmg of Vancil Road from the north property hne of the subject SIte to the mtersectlOn w1th Yelm Avenue The resurfacmg shall mclude two 11 foot lanes plus a 4 foot paved shoulder on the west SIde for pedestrIan use. Section 14g., pg. 9 - In add1tlon to the rmprovements lIsted above, the applIcant has agreed to enter mto an agreement wIth ad]ommg property owners to provIde proportlOnate share fundmg for the proposed sIgnal at Vancll and Yelm Avenue March 18, 1993 Godat & Associates 2708 Westmoor Court Olympia, WA98502 Attn Kevin O'neil RE. Comments on Prairie Heights preliminary plat and environmental review Included are the comments from the City of Yelm regarding your preliminary plat proposal and environmental review In addition to these comments, I would recommend meeting with Thurston Co Health Dept This I advise in your interest because they will give final approval for which lots will be allowed septic permits This also may prevent any unwanted surprises to deal with when a MONS may be issued on the Environmental Checklist I also attached the comments from Dennis Cochran, the engineer acting on behalf of the city of Yelm These should be incorporated into the preliminary drawings along with the recommendations by the Water Dept ( located on the drawings sent to Kevin O'neil) Please include the street improvements to Vancil Rd and the paved walkway on west side Street lighting should also be identified, please use 300 ft as a general spacing guideline Also, we would like to know your intentions for the dwelling unit currently located in the deslgnated open space If there are any further questions, feel free to contact me at~ Yelm City Hal" or at 458-8408 T~~ ~t~ city planner TO SHELLY BADGER, CITY ADMINISTRATOR CRAlG STEEPY, ASSOCIATE PLANNER FROM. DATE 3/15/93 SUBJECT' PRAlRIE HEIGHTS, ENVIRONMENTAL REVIEW The followmg statements are my revised comments on the envIronmental checklIst for the above referenced proJect. Section 3d, pg. 4 - The DNS should amend thIs answer to read, "The stormwater control and treatment system shall be desIgned per the grudelmes of the Thurston County Dramage Manual for the Thurston RegIOn." Section 8h., pg. 7 - ThIs sectIOn should be amended by the DNS to state that the sIte lIes wIthm an aquifer senSItIVe area as defined by the Thurston County Health Department and as mrucated by the applIcant m the background sectIOn, number 17, page 2 Sections 8i & 9a, pg. 7 - Based upon mformatIOn prOVIded by the applIcant m these sectIOns, would lead us to belIeve 77 duplex lots are bemg proposed. ThIS IS mconsIstent WIth the applIcatIOn wInch states 64 duplex lots are bemg proposed and the prelImmary plat map whIch shows 63 duplex lots, The applIcant should prOVIde m wrItmg updated mformatIOn so that the CIty IS clear m It'S records what IS bemg proposed. On March 9, 1993 we met wlth the apphcant where he stated that 63 lots are now bemg proposed, 126 duplex umts some lots may be developed as smgle family umts Section 12c, pg. 8 - Per CIty orrunance 445, the project IS reqUIred to prOVIde a mmImum 6,300 square feet of open space for recreatIOnal opportumtIes The applIcant proposes 6,400 square feet whIch meets tIns standard. The eXIstmg smgle famIly reSIdentIal structure located m the open space tract, must cease from remammg a reSIdentIal hvmg umt, EIther the structure must be removed from the SIte or, remodeled as a commumty/recreatIonal amemty to the open space for the use by the reSIdents Section 14d, pg. 9 - ThIS sectIOn should be amended statIng the agreement between the CIty and the applIcant on what street Improvements are to be made 1 The Internal roadways shall be bUIlt to the followmg standard. 50 feet of InterIOr fIght-of-way, 24 feet of paved roadway surface, vertIcal curbmg, concrete SIdewalks on both SIdes of all through streets, SIdewalks on one SIde of all cul-de-sacs 2 Frontage Improvements to VanCIl Road WIll be reqUITed mcludmg, provIrung half street rmprovements for an eventual 28 foot roadway sectIOn, concrete curb, gutter and SIdewalk. At a mmImum, an adilltlOnal 10 feet of new roadway surface must be placed on the OppOSIte SIde of the centerlIne m order to prOVIde a 24 foot drIvmg surface on VancIl Road. 3 Off SIte Improvements WIll Include the resurfaCIng of VanCIl Road from the north property hne of the subject SIte to the mtersectIon WIth Yelm Avenue The resurfacmg shall Include two 11 foot lanes plus a ,4'foot paved shoulder on the west SIde for pedestrIan use '5 ~ TO: SHELLY BADGER, CITY ADMINISTRATOR FROM: CRAIG STEEPY, ASSOCIATE PLANNER SUBJECT: PRAIRIE VISTA, PRESUB COMMENTS DATE: 3/15/93 Planninq Analysis The proposal appears to comply with the Yelm Subdivision Ordinance, Open Space Ordinance and Section 6 of the Yelm Zoning Ordinance for subdividing the SUbject property into a single family neighborhood. No major changes to the site plan are needed from the Planning Department perspective. Transportation Per the Yelm Comprehensive Transportation Plan and the Washington State Department of Transportation, District #3, an abbreviated traffic analysis should be required. The analysis should provide sufficient background and anticipated traffic information in order to determine the affects this project will have on Yelm City streets and State Route 510. Mitigation measures shall be proposed for those areas significantly impacted. TO SHELLY BADGER, CITY ADMINISTRATOR CRAIG STEEPY, ASSOCIATE PLANNER 3/15/93 FROM. DATE SUBJECT' PRAIRIE HEIGHTS, ENVIRONMENTAL REVIEW The folloWIng statements are my revised comments on the envIronmental checklIst for the above referenced proJect. Section 3d, pg. 4 - The DNS should amend thIS answer to read, "The stormwater control and treatment system shall be desIgned per the gUIdelInes of the Thurston County DraInage Manual for the Thurston RegIOn." Section 8h., pg. 7 - ThIS sectIOn should be amended by the DNS to state that the SIte lIes WIthIn an aqUIfer sensItive area as defined by the Thurston County Health Department and as IndIcated by the applIcant In the background sectIOn, number 17, page 2 Sections 8i & 9a, pg. 7 - Based upon InfOrmatIOn provIded by the applIcant In these sectIOns, would lead us to believe 77 duplex lots are beIng proposed. ThIS IS InCOnSIstent WIth the applIcation whIch states 64 duplex lots are beIng proposed and the prelImInary plat map whIch shows 63 duplex lots The applIcant should prOVIde In WrItIng updated InfOrmatIOn so that the CIty IS clear In It'S records what IS beIng proposed. On March 9, 1993 we met wzth the apphcant where he stated that 63 lots are now bemg proposed, 126 duplex umts some lots may be developed as smgle family umts Section 12c, pg. 8 - Per CIty ordInance 445, the project IS reqUIred to prOVIde a mInImUm 6,300 square feet of open space for recreatIOnal opportumtIes The applIcant proposes 6,400 square feet whIch meets thIS standard. The eXIstIng SIngle famIly reSIdential structure located in the open space tract, must cease from remaInIng a reSIdential lIVIng umt, EIther the structure must be removed from the SIte or, remodeled as a commumty/recreatIOnal amemty to the open space for the use by the reSIdents Section 14d, pg. 9 - ThIS sectIOn should be amended statIng the agreement between the CIty and the applIcant on what street Improvements are to be made 1 The Internal roadways shall be bUIlt to the follOWIng standard. 50 feet of InterIOr rIght-of-way, 24 feet of paved roadway surface, vertical curbIng, concrete SIdewalks on both SIdes of all through streets, SIdewalks on one SIde of all cul-de-sacs 2 Frontage Improvements to VanCIl Road WIll be reqUIred IncludIng, prOVIdIng half street Improvements for an eventual 28 foot roadway section, concrete curb, gutter and SIdewalk. At a mInImUm, an addItional 10 feet of new roadway surface must be placed on the OppOSIte SIde of the centerlIne In order to prOVIde a 24 foot drIVIng surface on VanCIl Road. 3 Off SIte Improvements WIll Include the resurfaCIng of VanCIl Road from the north property lIne of the subject site to the intersectIOn WIth Yelm Avenue The resurfacmg shall mclude two 11 foot lanes plus a 4 foot paved shoulder on the west SIde for pedestrIan use Section 14g., pg. 9 - In addItIOn to the Improvements lIsted above, the applIcant has agreed to enter mto an agreement wIth adJommg property owners to provIde proportIOnate share fundmg for the proposed sIgnal at VancIl and Yelm Avenue - I I I I , i i ! : i , I ; i , I , I ! i il , I i 1 1 j : I ';-1 i ~ !jL/{lO~5ItQ f!-M h '1 ;}) Ckt~t1L Ltb.-- : I I Ii !-('0-.-"-[- h~({l ~, : I i j ! I II ' H d:JN5-rc'F,cl7971fP . :l~~LW1u-f~bLb:uc~z- 2M fl--OrwvJ22l!_ : I : I "... I, , I ! I , I J! 7JJL ~ ~~- _. ." ..Pm r/VI'~ f/-L rqliki. - - / - ... . .'. ~t7ati t/A' Z5IrNVt -'- . ... ...~. .... _ __ (UP/a7.4 &Cf() _ mr,h15" /~ \~ - 4- ~'/b ~ ~ (%650 / _ _ _ _ _ _~ _./J G . ~ /50 ffn/J- - - - ~.... - - .. t. V~(:/{ Pel ClA/(f'.fI!tct- rY' - IhUlJ?CULZ ..' . q;DD ' cfr J.'-/' -t- 0ft(J2U ot~ f-!zJ h~ Inf-o SId; u)a!l .. _. _ , _ __ uJ!Ctc4 6~ __.' ,.._. ..' ..- - -.. - --. - ~- '..- - , Uf.m~ Wi GedaT (j> 1lni(t.i! j!~5h~ .' t .1Af m T Wj::o,yxj t z);l ~ft,- A-vr . ,'. ~ -. ..... ~-~ - - -- - -- -- --~. - -- ...-- -- -- _ ___~_' . ~p _' '. - _~d (nA/t: /Uduucf co- ... _ _, ." /f/(Lqt c.AJ! ~:/tv~ fvt. . ~<;, 1411 (!r57IV2/ l~ . .mvu€/ ~02N WlU- WI ff~ lOr, . ... ~' ..:: _~ _~ ~ Jilrk.",. . u ' -- :'" " ., "'. '. .--' . '.. .. __. __ _~ ____. __ - _, __..... _~. ....... _0 ...... .... ...... ....,--.... - ,.,.. .. -.- ._.---....-- ,,---- - ..... - ---.--.-- t1 H F ~., .~," 3 -= '0 ::-} / THU 1 ~=~ _ c::- --:"" . _I 1 OFTH H :: ::DCIHTE:: F_~=~1 DENNIS COCHRAN, P,E, CIViL ENGINEER 2626 12TH COURT $W OLYMPIA, WA 98502 (206) 754-1495 MEMORANDUM March 4, 1993 TO Shelly Badger, Crty' Admrnlstrator FROM Dennis Cochran, P E, Crty Eng!near -~vv.~ Fie Prairia Heights., Frellm1nary Utnlti.es (See Hovverd Godat &: As~oc1ates Dral/vlnes 'Printed 2-2.3-92) PAGE I OF '3 Roadway SectIon e Sidewalk ret:iu1red B Dimensions g1ven do not add to 25 feet as shown, ;2 Ilnd~r Note Add 5 Septic Tanks to be abandoned per Thurston County ~nvlrQnmerltaJ Health Oepartmerrt Standards, 3 Is the house s.hown wIthin the open space to be removed? 4 Corrtours neoo to be identified as to elevation, 5 Does the r1ght-of-Vtay '81dth shown comply v'/1th plattIng ordlnance? 6 Snovf easements along lot f.ronts for pr1Vate utnltles, 7 Wh€re does the drainage from these streets go and v.mat provIsions are betng made for pre- treatment and disposal? P,t.GE } OF 3 H fd rant Detail a 'StOlL" connection required b The roadway Mction shov'iJ1 on Sheet 1 of:3 wnl re-=\ufre the hydrant to be placed b9hind the ditch. ThIs will create access problems which can rea..:flly be solved by placlng a CiJI'/ert In the ditch at tMe culvert c ~ enQ'lneerlniJ drawIngs ~'illt need to address fire ft9ws at the ends of the dead $M IJnes and show bl'o\.'!-clff assem'blles at the ends, The =n~(triMr and Owner need to be aY:Ia.r6 that native ma.terfal Is not allowed as baekfll! material aretond the p1pss, Sarw:l or high ~ns!ty backfill fs requIred, illl\i IHIHI: 111IHiH!1III'1111111\1! 1111111\:111 lilPll!1 I :1111'1 I IHI~lil ,1.till\lllll ~HIl,llllllillIl~lililli\1l1111111 liltljllll,lllllHll ,i1Wll:11 lillllllllliHI~llill :HI1111111!llInll:111IiIl1lIilll ,1111'1111 Ilillllli Illnl!~1 II 1~lufll 111;llnnl 1111HI1l' II - II 4 - l 1 1 U I AM F II 1 !Illqlll ( .....t1 H F-. - 4 - =" ~ T H U 1 1 : 0 ..:: 0 F T H -k..,....;.- .,#1 H==OCIHTE= F . 0 1 Memorandum Page 2 PAGE 3 OF 3 (to be reviewed by Gene Borges also) Are the details shown City of Yelm standards? 2. Division 1 to be constructed using on-site drainfields. This will require review by Thurston County GENERAL Are lot sizes adequate? I do not have a preliminary plat drawings. 2. Since this preliminary plat has already been through pre-submission, 1 do not think we can impose the provisions of the Drainage Manual. However, pre-treatment of storm water will be required prior to disposal. If swales or road ditches are the method of choice for pre-treatment, the swales/ditches wlll need to be hned with a slowly permeable soil. This will be dealt with at the design phase. The Owner shoqld be aware of the pre-treatment and infiltration requirements at this time so no nasty surprises pop up later 3 Can we require mitigation or participation in correcting the intersection of Vancil Road and Yalm Avenue? 4 Doesn't the proposed by-pass go through this area somewhere? Nothing herein shall be com~tru~ as a requirement for re-submittal However, I would like to see some additional input on storm drainage q.~f()reenglneering drawings are started. This requirement is more for protection of the Developer than the City If additional area is required for storm water, lot(s) could be lost. DC Is II 114 1 j 1+.- [I;l j.'ll ~3: :5:;': 1~ 5t ~ :~)~ 4~, :4;'~ F 01 ~ , -".. ~ ~........, .._-- 5, Chamberlain & Associates, Inc, r, FAX'rRANSMITTAL 1'0. COMPANY C)/ of 'leI rn INDIVlDUAL. sh?//y 34Jer FAX NUMBER: ~~ -43'1<g OFFICE NUMBER: FROM. CrctlJ S+eePy NUMBER OF PAGES 'ro FOLLOW ':Z- PROJECT NUMBER: 9 ZL/33,2 PROJECT NAME: r('at(fe /kj~hf-5 DATE. ?/Z~,9Z COMMENTS: ~ ti1JYl If/? C t lJVt/fl ell- ----- If you do no< receive all cor- ... Ides/mile transmiHion (and or documents aceompa ~~.."".<:/1acr which is protected by the consullant.clienl privilege, 7 ___,-...\J'vIGualor CIl!h){I1.imed above. If you are not the intended recipienl, you are hereby noti ._~.c, copying, distribution U{ 'he I,lkini; of any action in reliance on {he contents of this information is strictly prol ,~"l'a:-Ifyou receive this tlan.-mission ;n error, piease naify us as soon as possible to arrange for the return of the documents. .,.... Engineering, Planning, and Surveying Services 719 Sleatcr.Kinncy Road'SE Suite 120 POBox 3485 Lacey. Washington 98503-0485 (206) 493-6002 (907) 279-5929 (200) 493.2476 FAX .."~ t,. 1'0' SHELLY BADGER FROM' eRAl G S'l'EEPY DA'l'E' 2/26/93 SUBJECT: PRAIRIE HEIGHTS, ENVIRONMENTAL REVIEW Shelly, after initial review of Prame Heights, I have some concerns that I would like to Lrmg to your attentlOn. Ag you know, Prame Heights is probably one of the first resIdential projects of this magmtude to be proposed under your recently adopted comprehensIve transportatIOn plan and development guidelines, This brmgs about changes in what local developers are commonly used to submitting in terms of techmcal informat.IOn needed and type of development standards proposed in the Yelm area 1'he fact is, Yclm is a rapIdly growing area in transition from a rural type atmosphere to a dense urban center The type of standards you require for this project will set important precedence for the fut.ure OK, enough of what you already know Based upon the information provided on the application and in the environmental checklist, It is expected that thIs project Will create over 1200 new daily vehIcle trips on Yelm's street network and over 100 peak hour trips in the early evening hours. According to the CIty's traffic Impact analysis standards in the Yelm ComprehenSIve TransportatIOn Plan Supplement, Appendix D, any project creating over 20 PM peak hour trips in the peak hour direction must complete a traffic impact analysis. This project definitely falls well withm this guideline and a traffic study should be reqUIred, If the CIty docs not require this study, you can fully expect that WSDOT will as a result of traffic impacting the state highway and proposed new signal at VancIl Rd Secondly, as I understand it, I am to base my environmental review on tho adoption of the Lacey Development Gmdelines with of course some minor revisions, As you can see on the attachment the Lacey street standard reqUIres 36 feet of pavement, 56 feot of right of way, stroet hghts and sidewalks on both the SIdes of the street. This is quite different t.han what 18 bemg proposed on the subject plat and what probably has boen commonly pernlltted 111 the CIty in the past. Thirdly, although the applIcant. desires to make the March 15 publIc hearing, I'm not sure this is a realistIC schedule when we way the needs of additIOnal traffic informatIOn and when an environmental determinatiOn is needed. March 9th would be the latest we could receive this informatIOn to prepare for the public hearing It was Perry's recollectIOn at the last City CounCil meetmg when dIscussing the Y.2 alternatives, that the publIc is very concerned about transportation Impacts to Vancil Road As a CIty staff member, it would lle vory dIfficult to dcfond rl DNS at. a public hcarmg WIthout a t.raffic study and propo~od mitigation measures l'p} sure I've gIVen you plenty to think ahout. If you would like to meet. t.o discuss tlns situatIOn, Perry and 1 are avadaLle anytillw today GJve us a call at. your convenionce 1'1 - -. . 1::1 11 I-II::'"I-!.,l\ll r I r (' \. J ... r ) 0":' ':'5~: 1 ~ 5': 2: :Ot 4~::' :4;'t ...,~~--=- ;. 0.02' LIP ~ If. 10" UTILITY EASEMENT 56' 5' 28' SOUTH & WEST 28' NORTH &. EAST CWRINO UlllTS tllCtn AT fUlltrolllolu 18' 18' 45' 5' 8' "'''STARt.( 6' "'ASTARM .51 71 J G~ 5~ aURfEO STRHT_ 0 LIGHT CONDUIT F (12 CEMENT CONCRETE CURB &: GUTTER SEE DETAIL 4-14 If.. to" UTILITY EASEMENT 51 CIUIIINO OllllS exC[I'T AT TlAMItOllilta 45' 5' 3' SANIT ARY SEWER WATeR Qli L 50; 9URI[l> STRUT UGHT COHDUIT GENERAL NOTES. ,. SEE DETAIL 4-6A FOR PAVEMENT STRUCTURE 2. ROADS DESIGNATED AS BIKEWAYS SHALL HAVE BIKEWAY WIDTH ADDED TO RIGHT-Or-WAY WIDTH CITY OF LACEY, WASHINGTON DEPT. OF PUBLIC WORKS STREET DESIGN LOCAL ACCESS a;::-:;t tbw-.. i'qlf*:) crry ENOtEER OA OC45,bWC DES. LRW O'NN. CKO. GGW ! BF'B DATE 7/9/90 owo. NO, 4-5 I - 'I r! - 1-' 10 . ]'1] r 1-' ~ LJI ~I '<t- C I SOUTH 1/4 SECTION 30 I ~ . FD, 2" IRON PIPE W/TK I C 0.4'S X 0.1' W OF I ~ I 3- WA Y FENCE CORNER I I I TIED AUGUST 1993 L_________ I __ : ~ -----_--.J - DOWN 0.4', 1.3' W OF CL CLARK RD. TIED AUGUST 1993 : ~< I ~', LJ I \.J\ ~d_~ ~ ~ I -\ ~=? '-'OU ~ ' ~ ~ "( ~ S 88'.32'10" E 271951 :;: - - - - _ _'_ _ 1322,58_ WEST 1/4 SECTION 30 132~.5~ " FD 5/8" REBAR DOWN 0.3' N 88 '.3110 W l' W OF CL MILL RD I TIED AUGUST 1993 ~ I <0 ~I I~ ~ 15 Ol ,., <0 (\j I t C Ol ~I.!O ~I'" ,., !,o - - C ~ - OF SW1/4 NE1/4 T17N, R2E, W.M. ;, SCALE. 7"=100' ~ I I o 50 100 I 200 ~ ...... 41'-..:. NOTES LOTS " 38, 39, 45, 24 AND 23 SHALL NOT ACCESS ONTO VANCIL ROAD SE. . ,- ,-, ',:,. ,,~ "~ 2. TRACT "B" IS EN TENDED TO BE A TEMPORARY TRACTIOB THE Pl.'I'?~OSE OF I3pNG USED AS A SALES OFFICE AND IS TO REMAIN THE PRIVATE PROPERTY Or "fAR ENTERPRISES. EXISTING STRUCTURE IS TO BE REMOVED WITHIN ONE YEAR OF RECORDING OF THIS PLA T AND SAID TRACT "B" TO BE BOUNDARY LINE ADJUSTED TO TRACT "A" AGREEMENTS AND CONDITIONS ARE SET FORTH IN A LEITER ON FILE A T THE CITY OF YELM. 3. TRACT A (OPEN SPACE/RETENTlON POND) SHALL BE OWNED AND MAINTAINED IN COMMON FOR THE BENEFIT OF ALL LOT OWNERS. ALL LOTS HA VE AN UNDIVIDED INTEREST IN THE OWNERSHIP AND MAINTENANCE OF TRACT A. THE OWNERSHIP INTEREST IN SAID TRACT A SHALL BE STATED IN THE DEED TO EACH LOT 4 THE MONUMENT CONTROL SHOWN FOR THIS SUBDIVISION WAS ACCOMPLISHED BY FIELD TRAVERSE UTILIZING A SEVEN SECOND TOTAL STATION (NIKON DIM A20). LINEAR AND ANGULAR CLOSURE OF THE TRAVERSES MET THE STANDARDS OF WAC 332-130090. 5. ALL LOT CORNERS AND PLAT BOUNDARY ANGLE POINTS WERE STAKED WITH A 5\8" REBAR AND RED CAP (TRUE LS 24227) UNLESS NOTED OTHERWISE '" -4- . ...) S = MONUMENT SET SET 3" SURFACE BRASS DISK (BERNTSEN RB SERIES) W/PUNCH PER CITY OF YELM STANDARDS o = FOUND CORNER AS NOTED --, y ;p: ~\,. I I ....I" I MERIDIAN = GRID BEARING ON EAST LINE OF NE 1/4 SECTION 30 Of-- FROM INERTIAL #788 TO GPS #2 WASHINGTON STA TE PLANE COORDINA TES/SOUTH ZONE r" . l" I __ ( ... .... I r I-I . .... .... . f;" . , ... 1 ADDRESS SCHEDULE FOR PRAIRIE HEIGHTS DIVISION 2 ADDRESS SCHEDULE FOR PRAIRIE HEIGHTS DIVISION 2 --1 D:'l' S ~ lli ~ 1323.87 --- o ll) C\j ~ - 1322.58~ 2645.16 1 r I ADDRE PR,URIE ALL ***" YELM, LOT NUMBEf 2 3 4 5 6 7 B 9 10 11 12 13 14 31 32 33 34 35 36 37 38 .1 nnR1 a AGREEMENT FOR COMPLETION OF IMPROVEMENTS AND REPAIRS THIS AGREEMENT is made by and between CITY OF YELM, a municipal corporation of the State of Washington, hereinafter referred to as "City", and EAR ENTERPRISES, hereinafter referred to as "Developer". WHEREAS, the Developer requests the City to grant final approval for the division of land described as: PRAIRIE HEIGHTS, DIVISIONS 1 & 2. WHEREAS, certain required improvements have not been completed; and WHEREAS, certain repairs, and/or replacements of required improvements may be required; NOW, THEREFORE, on the condition that final approval for the above mentioned divlsion of land lS given by the City, the Developer covenants and agrees as follows: 1. The Developer shall complete and/or repalr all subdivision improvements required by law and/or as a condition of subdivision approval, particularly including the following: a. Rock retaining wall at the south end of the Vancil Road improvement to be constructed wlthin 30 days and, th~ ,~~ ' slope on the east side of Vancil Road (along the ~lP\ edge) must be armor-plated 'with 2" - 3" rock. These 2 items must be completed within 30 days from the date of this agreement or final plat approval, whichever is later. b. 5' asphalt walkway to be constructed as per approved engineering plans from Yelm Avenue to the existing concrete sidewalk along the west side of Vancil Road. c. Removal of the existing house in the open space located .J. o~ the wes~ side of Vancil Road. ~l [ {{ /! L{;L tiS, 2. Thef required improvements and/or repairs shall be completed within twelve months or sooner as stipulated above, from the date of approval of this agreement or final plat approval, whichever is later. The Developer may request an extension of the " period within which the improvements and/or repairs must be completed, provided that such extension shall be for no more than an additional twelve months, of twenty-four months. Such extensions must be approved by the city council and secured as required herein in advance of the original completion date. The Developer shall notify the Public Works Director promptly upon completion of all required improvements, and the Director shall gi ve notice of approval or disapproval of the same wi thin a reasonable time after receipt of notice, 3. The Developer shall provide flnancial security in a form authorized by Section 16.20.030 and 16.20.040 of the Yelm Municipal Code, to assure full and faithful performance of this Agreement. Financial security required for completion and repair of improvements and assurance of successful operation of all improvements may be combined into a single bond, deposit or letter of credit equal to the sum of the amounts appllcable. 4. The financial security shall be in the following amount, said amount being estimated by the Public Works Directors as sufficient to cover the costs of the improvements, repairs and relateq engineering and incidental expense: C vP-"~) . \ \~l"'-J;:. cil. $ to cover the value of {~ c J~ items 1, a thru c, at a rate of 1 1/2 times the estimated (~t-\\'~ value. \ 5. Financial security attributable to the requirements of this Agreement shall be released by the City Council of the City of Yelm upon the advise of the Public Works Director that all of the Developer's obligations pursuant to this Agreement have been fulfilled and following submittal of the Developer's written request for such release. 6. If the Developer fails to fulfill the obligations of this Agreement, the City may take steps to demand performance of the Developer's obligations within a reasonable time not to exceed 90 days from the date of demand If the required improvements are not substantially completed within that tlme, the City may take action to forfeit the financial security. The City may be entltled to recover all costs of such action including reasonable attorney's fees. Following recovery of the proceeds of the financial security, those proceeds shall be used to complete the required improvements and pay the costs incurred. Should the proceeds of the financial security be insufficient for completion of the work and payment of the costs, the City shall be entitled to recover the deficiency from the Developer. DATED this ____ day of , 19 t? DEVELOPER: CITY COUNCIL, CITY OF YELM: BY: Mayor ATTEST: Title CITY CLERK APPROVED AS TO FORM: WP51/EAR.AGR CITY ATTORNEY , . LETTER OF CREDIT AND ASSIGNMENT This Letter of Credit and Assignment is made pursuant to the provisions of Section 16.20.030 and 16.20.040 of the Yelm Municipal Code for the purposes of bonding in lieu of completion of required improvements and repairs described in the Agreement attached hereto and made a part hereof. The undersigned does hereby assign, transfer, and set over unto City of Yelm, all rights, title and interest in and to Savings Account No. in , in the name of (financial institution) with full power and (developer) authority to demand, collect and receive said deposit for the use and purpose of completing the required improvements and repairs described in said Agreement not completed by , pursuant to said agreement. (developer) It is understood and agreed that (financial institution) holds the certificate covering said account in its possession and agrees to hold the sum of therein until release or partial release of this Assignment is received from The City of Yelm pursuant to the terms of the attached Agreement, or demand made by The City of Yelm pursuant to Section 16.20.030 of the Yelm Municipal Code ant the provisions of said attached Agreement. DATED this day of , 19 Developer ATTEST: BY: Secretary The undersigned hereby confirms the deposit of $ in Savings Account No. with the terms set forth account as provided herein by The City of Yelm. in accordance herein and agrees to administer said above until all such funds are released ATTEST: Financial Institution BY: TITLE: / I CITY OF YELM POBox 479 Yelm, WA 98597 458-3244 OFFICIAL USE ONLY Fee .::2./0.0.00. Date ~ceived .;;-:;:l,I/~1? . By 0.RJtl t{~ File No .fOfffP APPLICATION FOR PRELIMINARY PLAT ,~ Fee $75 00 per lot "'1. II ' (Plus any professional service Charges,.c-.fe I .. b per Resolution No 252.) t)lr~, ' !.PIJ () /:':M ~h A preliminary plat is a request to subdivide property into five or more lots for the purpose of residential, commercial, or industrial development. A preliminary plat is reviewed by the City's staff, Planning Commission and Council for conformance with City subdivision standards and other regulations The Council will hold a public hearing after notifying neighbors and other agencies The plat cannot be approved unless appropriate provisions have been made for public facilities, such as roads, sewer and water Preliminary review will usually take about 90 days If preliminary approval is granted, a final surveyed plat must be presented within three years with appropriate arrangements for all improvements NAME OF PROJECT P RA i R. fE. H~ j (';, 1-1'1""', D/v. ONE. ~ tWO APPLICANT Mailing Address City, State and Zip Telephone $AR cA.) -rC:R_ p.R/5e~ P.o, BOX e"75' YczLWl) ~~H iff-lOW, 9<r3S2~.? 6~- '2-Z-9~ \(;/'1" !{-/"'!- 3g'(P(/,) OWNER Mailing Address City, State and Zip Telephone ENGINEER/ARCHITECT/OTHER iI!E", tRuE 4 Assoc , Mailing Address p.O IS Q..)( 90'2l City, State and Zip /GI_W\., , INA, CJ65Q'7 Telephone 456 ~ ZB94- l-..A/v D 5uJC VE YOR S SUMMARY OF REQUEST su c.. iZe:. S I DIE.NTl A L I1/fUL -r/- FA/V/ IL...( F'otP- Z/UPLe;><;E"5 A,.e~ PROPERTY DESCRIPTION General Location CJ IV VAN CI L. 1<..7.;> 5€. AP/<.oX, IOOD 5.ouTJI Or S!Z.507 Site Address Land Area (acres) 17 Section -30 Township I 7 /\/ Range Z 6" Assessor's Tax Parcel Number ~Z-7301.,.t75'"o/, z-z,30 /4C'.bPO ZZ-J3013tJlC>o, Z:Z_!30130bot) - , Full legal description of subject property (attach separate sheet if necessary) SSe A 7T AGH E. T:> -v~ 1)\ I affirm that all answers, statements and information contained in and submitted with this application are complete and accurate to the best of my knowledge, I also affirm that I am the owner of the subject site or am duly au- thorized by the owner to act with respect to this application Further, I grant permission from the owner to any and all employees and representatives of the City of Yelm and other governmental agencies to enter upon and inspect said property as reasonably necessary to process this application I agree to pay all fees of the city which apply to this application Signe~8~ Date 2 ~ z.,y'- 9' '3 --^------- .-. "'---- - - __ __ - - 1\"-- ~ PLEASE ANSWER THE FOllOWING QUESTIONS ATTACH EXTRA PAGES IF NECESSARY Do the subd.ivision's lot sizes, proposed use, etc , conform with the zoning of the property? Please explain Yes.> fl1&'13rS At..'- c:.ONL:>);)ONS or Y62-.n--J -ZO/V //l/~ o~l) / AlA N cE. 2. Are any provisions proposed to minimize conflicts with neighboring land uses? Describe PI2DJl:;.<:-T '-""IL.L- Bfl LAAl...t'>scAl"'eb A/V.o Z'e5/t.:;/l/60 ~ A, P?,i5~L As A .€eS':/L);t:J'/!//,IAL 2>csVGl-cP,P'/11GN/ 3 Is the site within 300 feet of any "critical areas" such as wetlands or streams? A/C> 4 What provisions will be made for water supply? HOOJ:. U? vvlLL 86 fi14De It?> Yc:C...M G/-rV vVA7C-R:. 5 What provisions will be made for sewage? H.!:Jt?J:::....-UP vJ/L.l- Be MAPc.. ""TD Y€Lr'V\ GrTY >~R. 6 What provisions will be made for stormwater and/or flood control? A. L.L S,t:) R)IV\ \A/~-n::e. VI / l '- L BEG CJN7A / AJ.CD DN S rrE ,A./\/z::, SUBJEvT TD CON DITJCMI..:s or .PV8t./6 \A./O;e.J::..s. 7 What provisions will be made for streets, access and/or buses? 'fZnAP5 VVILL ,BE. BL.>u:f AND (.)PG.P-A..J>-E..D -r6 H AN 1:> L.e "p1l2.0 --'rF~j) -n::A F" F" I C ~ P'LnWS 8 What provisions, if any, will be made for open space and/or recreation? AJDNc. 9 What provisions will be made for schools and school children? Ai oAf e. ATTACHMENTS o Environmental Checklist (including $50 00 fee) o Adjacent Property Owners List including Assessors Tax Parcel Numbers o Vicinity map showing nearby property, streets, land uses, streams and other features o Map showing location and size of water mains, sewer, stormwater facilities and other utilities and points of connection to existing systems o Copy of any covenants or restrictions that will apply o Grading plan for cuts and fills over 100 cubic yards o Ten copies of preliminary plat drawing(s) not larger than 18"x24" showing 1 Datum 2 Boundaries of all lots and streets in relation to city limits, section lines or corners, plus existing and proposed survey and elevation monuments. 3 Lakes, streams, wetlands, trees and other natural features. 4 Proposed zoning, use of each lot, and any public or common areas 5 Existing buildings and other structures 6 Existing and proposed streets, alleys, sidewalks, railroads and associated rights-of-way 7 Wells and underground storage tanks, 8 On-site waste disposal systems and proposed sewer lines and tanks 9 Existing and proposed street lighting, power, natural gas, television and telephone lines 10 Grade and curvature of streets to 300 feet from the plat. 11 Existing and proposed contours at two-foot intervals (or 5-foot if greater than 5%) o A reduced size copy of the plat not larger than 11"x17" \ _f\ -^ r ...J'_~_ PREUMINARY PLAT OF P'iPIfAJIfIE HEIGHTSPp lNTHE SW l/4AND SE 114 OFTHENE 1/4 OF SECl10N 30, TOWNSHIP 17 NORTH,RANGE2 EAST, WM lJEGAL DESCRIPTION DMSION ONE: PARCEL NO, 227-30-140501 227-30-140600 LOT 2 AND LOT 3 OF SHOKT SUBDIVISION NO, 1412 AS RECORDED IN VOLUME 14 OF SHORT PLATS, PAGE 120, .RECOf{J)S OF THURSTON COUNTY, WASHINGTON DMS/ON TWO: PARCEL NO. 227-30-130100 227-30-130600 THE NORTHEAST QUARTER OF THE SOlffHWEST QUARTER OF THE NORTHEAST QUARTER OF SECJ'/ON JO, TOWNSHIP 17 NORTH, RANGE 2 EAST, W M., EXCEPT THE EAST 15 FEET THEREOF CONVEYED TO THURSTON COUNTY FOR ROAD PURPOSES AND AlSO, THAT PART OF THE SOlffHEAST QUARTER OF THE SOUI'HWEST QUARTER OF THE NORTHEAST QUARTER OF SECl10N 30, TOWNSHIP 17 NORTH, RANGE 2 EAST, W.All, LYING NORTHEAST OF THE YELM IRlUGATION DI.5TR1CJ' SOlffH LATERAL DITCH AS THE SAME EXISTED ON OCJ'ODER 6, 1954. SnvATED IN THURSTON COUNTY, WASHINGTON Case No ADJACENT PROPERTY OWNERS LIST INCLUDE ALL PROPERTY OWNERS WITHIN 300 FEET OF EXTERIOR BOUNDARY OF THE PROPERTY INVDLVED ADDRESSES ARE TO BE OBTAINED FROM OFFICE OF COUNTY ASSES- SOR, BUILDING #1, FIRST FLOOR R J c. H A lZ:.I> C OU L 1E.l?- I 051/2 5~ Ct..AIU:_ /!.D YcUt'/; w,..q, 9~597 -Z2-7- 30 - /2. OQOZ- W IL/"lIlA Pc: M fC,H 10510 se:. Gt...AfZ./c:. I2-D YlE.LM I VIlA, ge5CJ7 Z'2-7- 30-- 1209 CJCJ OJ R.. ~ El::)E;~ (Y) E'R. IvV TpP:;; ~ rJ C F+'UI'\. c....N- ) O:s ~~ NWY .....S;O'7 SB L.J e. l- (Y)) LV ''4 q:3 ~ Cj 7 o:!.~ 7 -~o - / ~"""\-I ) /)/'7 rl i (.,1'\ fTE l- NOR ~ J I"" r I D w '''I V A-!\JG iy_ R.. D <s.e: 1 C2-. ~.J'IJ VJ ft ?1'??€: 4" '/ ~ ~ 7- 30 - /..) -i~ (,)ff) C,l11 rX h. 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'" ~ ~ ~~ ~ 0 ~oX ~'lS' ye\wt, L0~ q<(SSC\( ~ ').'_'.M' " .' .'. Ii., ~S ~~~lfM/'I...""""}6S~_.RWWI." RICHARD COULTER 10502 SE CLARK RD YEIM, WA 98597 PAULINE JABLOWSKI 402 URSULA ST AURORA, CO 80011 JACK PEUGH 27045 10th AVE S KENT, WA 98032 OUR REDEEMER LUTHERN CHURCH 10325 HWY 507 SE YEIM, WA 98597 MICHAEL NORQUIST 10619 VANCIL RD SE YEIM, WA 98597 ORREN PEUGH 27045 10th AVE S KENT I WA 98032 HOWARD ALEXANDER PO BOX 206 YEIM, WA 98597 THCl1AS WNGMIRE PO BOX 499 YEIM, WA 98597 ROBERT WHALEN 10704 CLARK RD SE YEIM, WA 98597 LLOYD REICHEL 12306 BALD HILLS RD SE YEIM, WA 98597 WILLIAM SCHOOLCRAFT 10831 VANCIL RD SE , YEIM, WA 98597 E.A.R. ENTERPRISES PO BOX 875 YEIM, WA 98597 WAYNE VANCIL PO BOX 128 YEIM, WA 98597 WILMA DEMICH 10510 SE CLARK RD YEIM, WA 98597 THCl1AS ISCl'1 PO BOX 657 YEIM, WA 98597 CARL CASSADY 10524 CLARK RD SE YEIM, WA 98597 ALF BARKLAND PO BOX 334 YEIM, WA 98597 HAROLD WOLF PO BOX 5200 YEIM, WA 98597 KENNETH GATKE 10837 VANCIL RD SE YEIM, WA 98597 . ENVIRONMENTAL CHECKLIST Phone Town of Yelm February 22, 1993 E.A.R. ENTERPRISES P. O. BOX 875 YELU. WA 98597 (206) 458-2894 HOWARD GODAT & ASSOCIATES. INC. 2708 Westmoor Court Olympia. WA 98502 (206) 943-1599 Proponent (c) Address Phone 2 Representative Address 3 Property Address or Location (e) Vane I I Road. S.E. 4 1/4 S/T/R (f) SW 1/4 and SE 1/4 of the N 1/4 of Sec. 30. T18N. R2E. W.U. 5 Tax Parcel # (g) 227-30-140501. 227-30-140600. 227-31-30100 and 227-30-130600 6 Total Acres 16 Acres. more or less 7 Permit Type Zoning Preliminary Plat Approval Residential Uultl-Famlly (R-2) 8 9 10 Shoreline Environment N/A Water Body N/A 11 Brief Description of the Proposal and Project Name 64 lot residential subdivision with the proposed roadways and Infrastructures. The plat Is to be called Prairie Heights. 12 Estimated Completion Date Summer. 1993 13 List of al I Permits, Licenses or Government Approvals required for the Proposal (federal, State and Local Including Rezones) Clearing. grading. utilities. building and right-of-way access. 14 Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain There are no plans for additions of this project beyond the Division One and Division Two boundaries. 15 Do you know of any plans by others which may affect the property covered by your proposal? If yes, explain There are no known plans by others that will affect this project. 16 Proposed timing or schedule (Including phasing, If applicable Division One completed by Summer. 1993. Division Two completed by Fall. 1994. 1 17 List any environmental Information you know about that has been prepared, or wi I I be prepared, directly related to this proposal The only known environmental Information that has been prepared for this area Is that this project lies within the aquifer sensitive area as mapped by Thurston county. To be Completed by Applicant Earth a General description of the site (circle one) Flat, rol I lng, hi I Iy, steep slopes, mountainous, other RoIlIng b What is the steepest slope on the site (approximate percent slope) The steepest slope on this site Is approximately 14%. located In the southwest corner of Division Two. c What general types of sol Is are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural sol Is, specify them and note any prime farmland There are two sol I types on this project: fine sand; Spanaway gravelly sandy loam. d Are there surface Indications or history of unstable sol Is In the Immediate vicinity? If so, describe NlsQually loamy NO e Describe the purpose, type and approximate quantities of Any fi I I ing or grading proposed Indicate source of fi I I Grading of roadway. There will be approximately 3.500 C.Y. of material to be graded on this site. f Could erosion occur as a result of clearing, construction or use? If so, generally describe Rainfall runoff could cause erosion to unprotected areas. The site shall have erosion measures In place as per the Drainage Design and Erosion Control Manual for Thurston County Region Washington. g About what percent of the site wi I I be covered with Impervious surfaces after project construction (for example, asphalt or bui Idings)? Approximately 45% of the site will be Impervious with roadways and houses. h Proposed measures to reduce or control erosion, or other impacts to the earth, If any On-site erosion control fencing. siltation pond Installation of storm drain system and retention piping as per the Drainage Design and Erosion Control Manual for Thurston Region Washington. 2 2 Ai r a What types of emissions to the air would result from the proposal (I.e , dust, automobile, odors, Industrial wood smoke) during construction and when the project Is completed? If any, generally describe and give approximate quantities If known Dust during construction, exhaust emission from construction equipment. Increased auto emission from completed project. b Are there off-site sources of emissions or odor that may affect your proposal? If so, generally describe Two roadways; State Route 507 and Vancl I Road. c Proposed measures to reduce or control emissions or other impacts to air, if any. Dust Control Measures during construction, Standard Emission control devices for project site. 3 Water a Surface 1) Is there any surface water body on or In the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names If appropriate, state what stream or river It flows Into. There are no surface waters on or In the Immediate area of this site. 2) WI I I the project require any work over, In, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans NO 3) Estimate the amount of fl I I and dredge material that would be placed In or removed from surface water or wetlands and Indicate the area of the site which would be affected Indicate the source of fl II material NONE 4) WI I I the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities If known NO 5) Does the proposal I Ie within a 100-year floodplain? If so, note location on the site plan NO 6) Does the proposal Involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. NO 3 b Ground 1) WI I I ground water be withdrawn or wi I I water be discharged to ground water? Give general description, purpose, and approximate quantities If known Stormwater runoff wi I I be Infiltrated Into the native sol Is of th Is site. 2) Describe waste material that wi I I be discharged Into the ground from septic tanks or other sources, If any (for example domestic sewage, industrial waste containing the fol lowing chemicals agricultural) Describe the size of the system, the number of such systems, the number of houses to be served (If applicable), or the number of animals or humans the system(s) are expected to serve Proposal will be served by proposed S.T.E.P. sewer system. c Water Runoff (including stormwater) 1) Describe the source of runoff (Including storm water) and method of collection and disposal, If any (Include quantities, if known) Where wi I I this water flow? WI I I this water flow into other waters? If so, describe Stormwater runoff from the proposed roadways wi II be collected In roadside swales which wll I serve as a treatment facl I Ity as well as a disposal method. 2) Could waste materials enter ground or surface waters? If so, generally describe Untreated storm water can carry pollutants. d Proposed measures to reduce or control surface, ground, and runoff water impacts, If any ~ it\1f"\,}'~(Y" () \if'\X\1 4 Plants Design of drainage system to best management practices. Installation of blofl Itratlon swales. All designs and construction shall be per the Town of Yelm design standards. a Check or circle types of vegetation found on the site deciduous tree, maple, other -X evergreen tree, fir, cedar, pine, other shrubs --- -X- grass -X- pasture crop or grain wet sol I plants, cattal I, buttercup, bulrush, skunk cabbage, OfI1er water plants, water Illy, eelgrass, mllfoll, other === other types of vegetation b What kind and amount of vegetation wi I I be removed or altered? Only that what Is necessary for the site Improvements and utility construction. c List threatened or endangered species known to be on or near the site NONE KNOWN 4 d Proposed landscaping, use of native plants, or other measurers to preserve or enhance vegetation on the site, If any Finish site to be landscaped and retention of natural vegetation where possible. 5 Animals a Circle any birds and animals which have been observed on or near the site or are known to be on or near the site birds hawk, heron, eagle, songbirds, other Robins Blue Jays, Wren, Chickadee, Crow mammals deer, bear, elk, beaver, other. rabbit fish bass, salmon, trout, herring, shellfish, b List any threatened or endangered species known to be on or near the site NONE KNOWN c Is the site part of a migration route? If so, explain NO d Proposed measures to preserve or enhance wi Idl ife, If any Retain useable native vegetation where possible. 6 Energy and Natural Resources a What kinds of energy (electric, natural gas, 01 I, wood stove, solar) wi I I be used to meet the completed project's energy needs? Describe whether It wi I I be used for heating, manufacturing, etc. Electric and/or gas heating and electric lighting. b Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe NO c What kinds of energy conservation features are Included In the plans of this proposal? List other proposed measures to reduce or control energy Impacts, If any Energy Efficient construction to State and N.W. Energy Code. 7. Environmental Health a Are there any environmental health hazards, Including exposure to toxic chemicals, risk of fire and explosion, spl I I, or hazardous waste, that could occur as a result of this proposal? If so, describe NONE KNOWN 1) Describe special emergency services that might be requ I red NONE 5 2) Proposed measures to reduce or control environmental health hazards, If any. All lots shall be connected to the Town's S.T.E.P. sewer system. Domestic water service shall be provided by the Town of Yelm. All existing wells on this site shall be abandoned. b Noise 1) What types and levels of noise exist In the area that may affect your project (for example, traffic, equipment, operations) Existing traffic noises from State Route 507 and Vane I I Road. 2) What types and levels of noise wi I I be created by or associated with the project on a short- or long-term basis (for example, traffic, construction, operations, other)? Indicate what hours noise would come from the site Short term noise during construction phase - 7:00 A.M. to 9:00 P.M. Long term Increased auto noise from completed project. 3) Proposed measures to reduce or control noise Impacts, If any Retain the native vegetation wherever possible. 8 Land and Shoreline Use a What Is the current use of the site and adjacent properties? This site and the surrounding properties are currently residential housing and farm land. b Has the site been used for agriculture? If so, describe Yes It has. c Describe any structures on the site. Yes there are existing structures on this site. They Include houses, mobile homes. barns and carports. d Wi I I any structures be demo I Ished? If so, what? Yes. all structures are to be demolished or removed from this site. e What Is the current zoning classification of the site? Residential multi-family (R-2). f What Is the current comprehensive plan designation of the site? Residential multi-family (R-2). g If appl icable, what Is the current Shoreline Master Program designation of the site? N/A 6 h Has any part of the site been classified as "environmentally J-S:e~r-H I ve"? I f so, spec I fy. ~j~),Ji"I-.\' No. this has not been specifically classified v.~\V ~~ UEnv I ronmenta Ily Sens I t Ive". .~ ~~ Approximately how many people would reside or work in the " O,j'U"';Jeted project? ~~:_ ,&:t: Assuming 6.2 residences per lot. there wi II be approximately . v\v) 477 residents when this project Is completed. ~.f-(\' . j Approximately how many people would the completed project displace? Approximately 9 people. k Proposed measures to avoid or reduce displacement Impacts, if any NONE I Proposed measures to ensure the proposal Is compatible with existing and projected land uses and plans, If any Comply with Zoning Requirements 9 Housing a ApprOXimately how many units would be provided, If any? , Ind~ate whether high, middle, or low-Income housing ~~v\J~~154 low to middle Income housing units. (} ~(,'V""\' ~\ b Approximately how many units, If any, would be eliminated Indicate whether high, middle or low-Income housing NONE c Proposed measures to reduce or control housing Impacts, If any NONE 10 Aesthetics a. What Is the tal lest height of any proposed structure(s), not Including antennae; what Is the principal exterior building material(s) proposed? 25' height. LP siding. b What views In the Immediate vicinity would be altered or obstructed? Change from native undeveloped land to a residential subdivision. c Proposed measures to reduce or control aesthetic Impacts, If any Retain native vegetation where possible. 7 11 Light and Glare a What type of light or glare wi I I the proposal produce? What time of day would It mainly occur? Parking and Building lighting, dusk to dawn b Could light or glare from the finished project be a safety hazard or Interfere with views? NO c What existing off-site sources of light or glare may affect your proposal? NONE d Proposed measures to reduce or control light and glare impacts, if any Retain native vegetation where possible. 12 Recreation a What designated and Informal recreational opportunities are In the Immediate vicinity? Golf course, City park and bike paths. b Would the proposed project displace any existing recreational uses? If so, describe NO J,../c Proposed measures to reduce or contro I Impacts on recreat lon, ? itJ'J~~V ~~cludlng recreation opportunities to be provided by the project ~'0V" . X\"G'br app II cant, I f any \~~\~~ NONE " 13 Historic and Cultural Preservation a Are there any places or objects listed on, or proposed for, national, state, or local preservation registers known to be on or next to the site If so, generally describe NONE KNOWN b Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural Importance known to be on or next to the site NONE KNOWN c Proposed measures to reduce or control Impacts, If any NONE 14 Transportation a Identify public streets and highways serving the site, and describe the proposed access to the existing street system. Show on site plans, If any Access shall be from the Vancil Road, S.E.. 8 b Is site currently served by publ Ie transit? If not, what Is the approximate distance to the nearest transit stop? NO c How many parking spaces would the completed project have? How many would the project eliminate? 308 off street spaces. none eliminated. d Wi I I the proposal require any new roads or streets or ,\jmprovements to existing roads or ~treets, ,not Including . ,_lV.\.r-i~JdriVeWayS? If so, generally describe (Indicate whether public or 1/ i"o. \J\ \' P r tr e ) (~~ ' ,(;f' Yes, there will be residential roadways constructed to serve ~\~\ \ the proposed lots of this plat. ~ e WI I I the project use (or occur in the Immediate vicinity of) water, rai I, or air transportation? If so, generally describe No. It will not use water. rail or air transportation. f How many vehicular trips per day would be generated by the completed project? If known, Indicate when peak volumes would occur 1.232 V.T.D. Peak morning & evening. ~ I I~ .\~~ ~ Proposed measures to reduce or control transportation Impacts, '1':\\O-V '1'0{i.1 f any ~N\\~~ Construction of new roadways to serve this plat. ~ 15 Public Services a Would the project result In an Increased need for public services (for example, fire protection, pol Ice protection, health care, schools, other)? If so, generally describe Yes. Fire and Pollee Impact due to Increased facilities and population. b Proposed measures to reduce or control direct Impacts on publ ic services, If any All Improvements are to be constructed to all current applicable codes 16 Uti I itles a Circle uti I Itles currently available at the site electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other T V Cable b Describe the uti I Itles that are proposed for the project, the uti I Ity providing the service, and the general construction activities on the site or in the Immediate vicinity which might be needed Water & sewer service by Town of Yelm. puget Power electric service. U.S.West phone service. Telecable of Washington. T.V. Cable. Washington Natural Gas. gas service. Pacific Disposal refuse. All utility services to be extended to the site by others. 9 The above answers are true and complete to the best of my knowledge. I understand that the lead agency Is relying on them to make Its decision. Slg~~Ie-i I 6~bm,~~ 3 1992 , 10 .. <f TO. EAR ENTERPRISES FROM CITY OF YELM PLANNING DEPT DATE 3/18/93 SUBJECT PRAIRIE HEIGHTS ENVIRONMENTAL REVIEW AND CONDITIONS OF MQNS Please incorporate the following statements lnto tne Environmental Checkllst The followlng amendments must be made before a Mitigated Determinatlon of Non-Signif1cance 1S issued You can either reVlse the answers or attach an additlonal page Section 3d, pg. 4 - The DNS should amend thIS answer to read, liThe stormwater control and treatment system shall be deSIgned per the gmdehnes of the Thurston County Dramage Manual for the Thurston RegIon." Section 811., pg. 7 - Tills sectIOn should be amended by the DNS to state that the SIte lIes wltilln an aqmfer sensItIve area as defined by the Thurston County Health Department and as mmcated by the apphcant ill the background sectIOn, number 17, page 2 Sections 8i & 9a, pg. 7 - Based upon mformatIOn proVlded by the apphcant ill these sectIOns, would lead us to belIeve 77 duplex lots are beillg proposed. ThIS IS mconsIstent WIth the apphcatIOn willch states 64 duplex lots are beillg proposed and the prelImmary plat map willch shows 63 duplex lots The applIcant should prOVIde ill wntmg updated mformatIOn so that the CIty IS clear ill It'S records what IS bemg proposed. On March 9, 1993 we met wLth the apphcant where he stated that 63 lots are now bemg proposed, 126 duplex umts some lots may be developed as smgle family umts Section 12c., pg. 8 - Per CIty orchnance 445, the proJect IS reqUIred to prOVIde a mImmum 6,300 square feet of open space for recreatIOnal opportumtIes The apphcant proposes 6,400 square feet willch meets tills standard. The eXlstmg smgle famuy reSIdentIal structure located m the open space tract, must cease from remammg a reSIdentIal hvmg urut. EIther the structure must be removed from the SIte or, remodeled as a commumty/recreatIOnal ameruty to the open space for the use by the reSIdents Section 14d, pg. 9 - Tills sectIon should be amended statmg the agreement between the CIty and the applicant on what street improvements are to be made 1 The mternal roadways shall be bmlt to the followillg standard. 50 feet of mtenor nght-of-way, 24 feet of paved roadway surface, vertIcal curbmg, concrete SIdewalks on both SIdes of all through streets, SIdewalks on one SIde of all cul-de-sacs. 2 Frontage Improvements to Vancrl Road WIll be reqmred includmg, provuling half street unprovements for an eventual 28 foot roadway sectIon, concrete curb, gutter and SIdewalk. At a mlIDIllUID, an adchtIOnal 10 feet of new roadway surface must be placed on the OppOSIte SIde of the centerlIne m order to prOVIde a 24 foot drIvmg surface on VancIl Road. 3 Off SIte rmprovements will mclude the resurfacmg ofVancu Road from the north property hne of the subJect SIte to the mtersection WIth Yelm Avenue The resurfacing shall include two 11 foot lanes plus a ,4'foot paved shoulder on the west SIde for pedestrIan use. '5 ,. Section 14g., pg. 9 - In addItion to the Improvements lIsted above, the applIcant has agreed to enter mto an agreement wIth adJommg property owners to provIde proportIOnate share fundIng for the proposed sIgnal at VanCil and Yelm Avenue