Drainage Report (2)
~~~ 1
~r~lir~ir~ary C~r~r~~ r~ r~~i~
c~r~tr~l art
Prepared for
Tahoma Terra, C.L.C.
Doug Bloom
PO Box 627
Rainier, WA 98576
380.951.7868
FAX 380.445.2972
Prepared by:
~ cur. rolrlnp Fn-rr, as ra
4200 Sixth Avenue, Suite 309
Lacey, WA 98503
ProjecP No.: 407013.1
October 22, 2007
P62EliMf$dR62Y DCtRINR,GE &Fd6 ER~~fON Cf3NTitOt tdEP6RT
Purvis Resides#i al Development -Phase i
Yelm, Washington
t5ckober- 20tJ7
E P R A ICS
Prepared for Tahoma Terra, L.I.C.
Contact: Doug Bloom
P.O. box 627
Rainier, WA 98576
(360}951-7888
FAX (360} 446-2972
RVIEl~1NCx AG ENCY __
..Jurisdiction: Yelm, WA
PrdjectNumber:
PrpjeCtContact: James E. Gibson, P.E.
PR(}JECT ENGB NEE??
Prepared by: KPFF Consulting Engineers
4200 6th Avenue SE, Ste. 309
Lacey, WA 98503
{360) 292-7230
FAX (360} 292-7231
Gonkact: Nicholas D. Taylar
KPFF Project 407013.1
FAOJECT EtIG7NEER8 CERTtFtCkTi{7N: E heredycer#iry that this Drain$ge Repork and Erosion Co[rtral
Planfor Pdrrts in Yalm, Washington has been prepared by me or undermysupervision apd meets irie
intent of the City of Yelm Development Gwdelinasand 1gg2 Washliigton'.State DepartmentpE Ecology
{WSDOEj.Stormwaker Management Manual tot<iheFuget Sound 6asitt unless noted otherwise,. and
normal standards of engineering practice. I undetstandthat the jurisdcdondoss naf andwaUt not assume
3iabiiity for the sufficiency, suitability, er pefiormanCe of drainage faei3itiu5 designed for this development.
s~f 4 ~ s"~~ }
4~~fVl $t ~ W
~}`Q'l}Cr~'Y I'27
1
TABLE t7F COYdTENT5
PART I-ORkiNAGE PLAN ._.._._.._._.._.._.._..._. _...i
Sections- Proposetl Pmjed Description _.. .._... ..... . _.i
Section 2. Existing COndiUOns ......... _....... _._ .._2
SeQion3- Infiltration Rates/Soils RePOrt...._.._... _._....._.........._._.. ....3
Se~ivn d- Wells and Septic SYStema _.. _....... _.. ....3
Section 5 - Fuei Tanks..... _.... ...... ..... ....3
Section 6- Su!>easin Oeacnpbon -.- ........ .._. ....3
$ectian 7- Analysis afi tfie t00-Near Flvod...._.....,..,._. _..........._.._.. __3
5eceion B- Aesthetic Consitle26ons fat Facilities.__._.._._.........__. .._4
Seaion5- Facility Sizing anC Downstream Analysis ..................__. _ ....a
Section 1 U -Covenants, Dedications and Easements ......................... .... A
Section 71- Property Owners Assaciatian Articles bf Incorporetion ... .... a
PART II -EROS ION CONTROL REPOR7....._..__..._.._.._.._._ ................. .... 5
Section t - ConstruIXion Sequenm And Procaduw......._ .................._ ._ 5
Saction2- 7rdPPlag Sediment ...... ........ ... ....5
Section 3- Permanont Erosion Centrvl&Site Restoration _._._........ _..6
SeIXiona- Geotechnical AnalYSrs And ftepori.._......_.._..........___._ ....b
Section 5- Inspection Sequence _....... ......... _.. ....6
Section 6 - CoMml Qf PoiWtants Ofber Than Sediments _......_........ _..6
FART IB -MAIN TENANCE PLAN .............................................................. .... ]
SeIXioni- Re4uired Maintenance ........ ..__ __ ._]
APPENDICES
Appendix i- SNmt Drainage
CaiculaPions
Appentlix 2- Basin Map
Appentlizb Vicinity Map
Appentlix a- FEMA Map
Appendx 5- Facility Summary
Fanns
Appentlix 6- Soil Evaluation
Report
APPendix 7- Maintenance
Agreement
Appendix 6- Erosion DaMroi Plan
ii
Paxt I
DYainage Plan
Punks KP!=~. C.,..,,..^oti ~^a'~nrs
~_
PART1- QY2P.INekGE PEAK
The format of this report follows the autiineprovided in the Drainage Design and Erosion
contra{ Manual for the Puget Sound Basin (WSDOE) per the City of Yelm Development
Gutdefinos.
Section 1 -Proposed Project Desarigtion
Parcel Number: 21723140109
TotaV Site Area: 6.t7D AC
Address: 945Q4 Berry Valley Rd SE
Yelm, Washington 98597
Zoned: R-4
Required Permits: Grading, Storm Drainage
i.egal Description: A portion of the South Haif of Yhe..SoufheastQuarter
of the Northeast Quarteraf Section 23, Township 97
North, Range i East, W.M. in ThurstoriGounty,
Washington.
S3teLacafian
Ttte project site is located in the City of Yeim, Washington. Access to the site is from
Berry. Valley Road to the Northeast
See Vicinity Map, Appendix 3.
Project t7vervieuv
The I?ropanent is proposing todeveiop the firsiphase of the. Purvis site into 24 single
famikytpts. The devebpment wl(I'be constructed In::rnult~ple phases and wilt include°.
apprapriata erosion control measures, grading;stormdrainaga improverriants,ahd
extension of underground utilities inc3uding water and sanitary sewer.
Storm frainage Imgsroveenenis:
The developed site is modeledas: s-sipgie. basin. Treatment anddetention of
stormwater tram aI! developed areas within tha. site are conducted at a single facility
adjacent to the wetland buffer on thelwestern portion of the site.
The soils study conducted an the sde,.whiah is included in Appendix 6, dafermined
.that infiltration was only passible in a small depth mne belowground. Due fothe
sloping topography of the site and the small infiltration zone desacibed in the. sods
report,onlysidewalk infltration is practical. However, the sidewaltarea and staifaas
area required to infiltrate the 9DQ yearevent makes sidewall lnfllfratlon imprdcfiaal-.
when trying to satisfy the !at densityrequirements of the R-d inning. Therefore; ruhaff
will be {rested, detained, and released to the natural point of discharge.
KPPP Co:rsu!6rtg Engii+eers _...___ October 2']n7
,~,:
r~,1rNH r ~4..u r.2Gr_
~ I irxer-~!'a a~ 5 f„sir. > -_.
Stormshed orifice calculations allow for post developed release rates to be less then
50°l° of the 2-year 24 hour predevaloped basin, and less fhan the i0-year and 100-
year 24 hour event.
A portion of the Tahoma Tarca development, which is southerly adjacent to the Purvis
site, was tributary fo kha same wetland in tts predeveloped candtion as Yha Purvis site.
Stormwater from the Tahoma Terra development is fully infiltrated thus the Tahoma
Terra predevaloped area previously tributary to the wetland has been included in the
predeveloped basin far Stormwater modeling of the Purvis site to maintain wetland
recharge flow rates.
The predevaloped basin was modeled as moderately sloped pasture or range. All
areas tributary to the natural point of release are accounted for in the predeveloped
basin as follows:
Pre ~ Impervious ' Empervious ~ ImparvPous Roo#s Undisfueb®d Tatai
6asin~ Pavement ~ SiaESwa!€t ~ Drivawa~s _1.--_,- Pervious _ _
A 6 _ 6 _0 _(___ 6 _~ $.d9 ~ _ 8._4.9_
ee Basin Map Appendix 2 --
kII tributary areas for the postdevelopod condition are accounted for as follows:
Note that i.07 acres ofi the site are not included in the postdevaloped basin as that
area is within fhe wetland buffer and will not be disturbed.
impervious lot coverage was assumed to be 751 of the gross lot area kn accordance
with the maximum lot coverage aUawed by the Yelm Municipal Coda (YMC).
Stormwater will be conveyed to a detention pond 320' long, 28' wide, and 4' deep,
which includes 1' of freeboard. Stormwater will be treating by ukilizing the dead pool
volume in the detention pond, which extends 3' below tharaquirad detention volume.
Beyond this traatmentanddetenkion, discharge of traatedrunaff wit! occur through a
100' level spreader towards the naYUral point of discharge. The level spreader and
detention facility will be lined with 6 inches of sandy loam soil Yo prevent infiltration.
Section 2 -Existing Conditions
The site is 6.00 acres and is ircegular in shape. Sife topography consists of a ridge
running North-South through fhe center of the property. Moderate slopes occur to the
West of the ridge into a wetland. Moderate sEapes actor to the East of the ridge into a
valley. The site is partially occupied by a barn and a shed. Vegetation consists of
K°FP Co°sclfnc c,_,,,._3r„r
Basin A includes the area for (&} additional 50' x 100' building lots and 150' of road,
walk, and planter strip in anticipation of runoff mitigation requirements for future
phases.
PL4 JiF. KPF~ CO,^.SU•:,,^~~ _riy`-Ine~,'s
P sit i;,zry~ r air, g .'d ~ 7 S r i ~r,g': r fir;
grass and Douglas fir trees. The.. project si4e is baundedbg undeveloped land to-#he.
North, Eas#, and West and tty the Tahoma Terra days€opment to the South. The SoiE
Conservation Service lists the soils on sde as Everett verygravelly sandy loam, 3ta
15°!° slopes and Yelm fine sandy:(cram, 3 to 15% slopes.
A wetland inventory completed tay.7he Cooi Company determined that #hewestern
edge of the Purvis site engages asmall portion ((7,82 acres) of a larger wetland {8.5
acres) off-property to the west..
A SEPA checklist has been submitted along with thisrepork.
This projectis located in an aquifer sensitive area, according tdtfie 1966 Thurston
Caun4y Comprehensive Plan Map M-8.
Section ~ - Infit3ration RatesJSrits Ftepart
The Sod Conservation Service Iisisfhe soils on ails as Everettvery gravegy sandy
team, 9 to 1b°I° stapes and Yelm9nesandy loam, 3fa 15°!o slopes.
Insight Geatggia, fnc. performed Geotechniaal and:Subsurfaae-Exptaration and
Enfiltrat~ons Pests far thePricvis site< Their report andsaii tags, dated 36 August:2t3D7,
are included in the Appendix 6.
Groundwater was not discovered in any #esk pifs on the Phase 1 site.
Secfiori «1'- k91e3ts and Septic Sysfems
A.sde visit was made #a determine if there are anywells or exis¢inglataandanadsep#ia.
systemsoo the site. Na such wells were found. However any art-site wefts
disaaveredin the fuYUre shall be abandoned according to WSDOEand Thuts#on
County Ctepartment of HeaHh standards
Thurston County has na reaards;af existing or abandoned septic systemsonslte.
Anysapticsystems encounteredwill be removed in accordance with ThurstoriGounty
Qepadmenf of Hsalth standards.
Waterand sewer service will be provided by the Gity of Yelm at time of final building
cons#ruction.
Section 6 - Fue3 Tanks
A review of the DC}E's leaking Underground Storage Tanks {Lt3ST) IisY did not
_ indicate the presence of any axis#ing or abandoned fuel tanks on or near the project
site.
Any fue3 tanks found will be removed in accordance with WS~OE standards.
Section 8 -Sub-i3asln Description
The project site is located withinihe:Thompson Greek Drainage Sasin perihe
Thurston Cqunty Comprehensive MapM-4. There isno significant affsite riinpft#a the
..pre}act site:Runoff resulting from project truildout wil3 be aqua! in or less than the pre-
developed conditions.
No handEing of hazardous materiaisan this site is forecasted
StPPF Ccrrsulting Engineers -_______ Oetcber'%~JU?...
3
_~. r
N tm7na=y r 'r, ~ 'LAC ~ ~;^
section 7 - &na€ysis of the 90Q-Year Fiaad
The site is found in FEMA Panel Number 5301880335 C, which Ties within Zane C.
Zone G is designated as an area with minimal flooding. See Appendix 4 far FEMA
FIRhI~ map.
section 8 -Aesthetic Cons3dera6ans far Faaiiities
All disturbed pervious areas will be vegetated and landscaped at completion ofi
construction.
section 9 - Facility siaing antf Downstream Analysis
Detailed storm drainage calcutations are incuded in Appendix 1 of this report. All
onsite runoff will be treafed by a wet pond prior to discharge tp the natural point of
discharge. The runoff flaw rate predicted by Stormshad when'modeled against the
predeveloped basin aonciudes runoff will discharge at ar below pre-developed
condition flow rates avith an appropriately sized combinationortficetweir control
structure.
Since all runoff will beat or below predeveloped rates, a downstream analysis was
determined unnecessary.
section 90 - Covenants, Dedications and Easements
Drainage facilities including pipe reaches and starmwater freatmenY mechanisms will
require routine maintenance. A draft maintenance agreement 6ehueen the owner and
City of Yelm is included in Appendix 7, which wlil allow City access to the faailifies.
Gity of Yalm will provide technical assistance at the ownees' request.
KrrF Co^s;aTig Eay!=.e~rs Ur_tobc'r'Aji~'
Part I7
Erosion Control Report
Parris KPFF Consulfinn Eng?n=zn
Pre (rn;~arv_D ~ r~ _ arcl_E o n ^e<rtr~ ~ ~- [
PART it -EROSION CONTROL PLAN
Sect€an.1 - Canskrackian Sequence and Proces8ure;
The proposed project wlLihdudean. eroson aontrglplan designed to containsiit and r
sail .within the project boundaries .during construction, and permanent erasion control
past construction. Erosion/sedimentation con4rolwiilbeachievedby a combiriaYwn afr
structuraUvegetation cover measures and construction practices tailored tofitthe site...
Ses4 Managemen? Practices {BMP's) will be employed to properly dear and grade She
site and reschedule aonstruction activities Beforaany construction begins 4n-site,
erosion Control facilities shallfiirstbe installed. TheContractor shall scheduled pre,:
construction conference withthecity, project engineer and construction-staking
surveyor. The planned construction sequence is as follows:
i. install rack construction entrances. Use 4'i to 8"diameter spans with 12"
minimum depth.
2. lnstai! filter fabric fencing and construction fence where appropriate.
3. Clear site (grubbingand raughgrading).
4. - Designate an areaforwashing:of equipment and trucks to control sedimentatipn..
runoff and eliminate any miry into the storm drainage systems
5. During November 1 through March 31, all disturbed areas greater 4han.5,000 sf
that are to be left unwarkedfar more than twelve (12) hoursshall be stabilized
by one of the following• mulch, sodding orplastic covering.
6. Provide catch basin 1n(et protection by installing silt socks under grates of all
inlets to drainage system,
Z .Install temporary sediment traps/ponds.
8. Landscape andlar seedaii disturbed areas.
9. Maintain all erosion control facilities until the entire site isstabilized and silt
runoff ceases.
i 0. After the site has been s}abilized the inf Itration trenches will be restored to
designed conditions.
Section Y-Trapping Sediment
..During. construction, caremust pe taken to prauenierosion of exposed soils:-.
Drainage faaility infiltratiansurfaaesmust be properly protected from aonlaminationby
thefine-grained upper horizon soils 2nd from compactign by site construction
activities. Filter fabric fencing will be installed wherever runoff has the potential to
impactdawnstream resources. This shall ioclude thearoas algng downstream
property Lines as shown onthe erosion control plan:. During construction, the
Contractor will also be required to instalif~iter fabric fencing as needed andas
directed by the Engineer andlar the Cityof Yeim..Catch basin protection shall be
provided by installing silt socks undergrates. ofall inlets to drainage. system..
Stabilized construction entrances will be. installed. to: prevent vehiciesfrom. tracking soil
away from the site. If sediment istracked off-site; i}shall be swept or shoveled from
paved surfaces on a daily basis, so Ehatitis: netwashed into existing catch basins
and/or grass ditches.
Alidisturbedlexposed soils shall be aovered with straw or mulch to prevent ernsion in
4hasa areas. The Contractor will not beal(ewedAo leave disturbed areasgreaterthan
S;OOOSf (that are to be left unworked fofmare than twelve (12) hours) uncovered
during the rainy season from Novemberl through March 31. Mulch, sodding or
plastic covering will be used to prevent erosion In these areas.
KPFF ~onsWfing c;tgineers ~-- -~ -- G~tober 2U~"7 --
Furvrs ,..~~ - -_._
r~ a r i- arv D _ ~~ E r G~~tro gann .......
Section 3 -Permanent Erosion Control & Site Restoration
All disturbed areas will be hydroseeded, or landscaped with grass, shrubbery or trees
in preparation of final construction activities consisting of paving and building
construction to be completed at a later time and under separate cover.
Section 4 - Gaotachnical knaEys3s and Report
There are no slopes exceeding 15-percent, therefore, a full geotechnical report was
deemed unnecessary for slope analysis. See appendix 6 for a complete soils
description.
SecYson 5 -Inspection Sequence
In addition to City inspections, the Project Engineer shall inspect the facilities related
to stormwater treatment, erasion control, storage and conveyanceduring construction.
At a minimum, the following items shall be inspected at the time specifiad:
1. The erosion control facilities should be inspected before the start of claaring and
grading to ensure the following structures are in place:
a. Construction Entrance
b. Filter Fabric Fences
c. Catch Basin inlet Protection
2. The conveyance systems will be inspected during the construction process to
ensure the following are installed correctly:
a. Grading for Drainage
b. Catch Basins
c Conveyance piping
d. Sediment ponds/traps
3. Tha permanent site restoration measures shall be inspected after landscaping is
completed.
The erosion control and conveyance items listed above shall be inspected as soon as
practical following every significant rain#aIl event {2-inches in a 24-hour period) that
occurs during construction.
A fnal inspection will be pertormed to check final grades, settings of control structures
and all necessary findings to complete as-built drawings and to fulfill requirements of
cartif cation.
Saction 6 - Contro! of PoiBufanfs Other Than Sediments
Washout from trucks shall not be dumped info the storm drain, or onto soil and
pavement, which oarries stormwater runoff. It shall he dumped into a designated area
to be later backflled ar hardened and broken up for disposal into a dumpster. The
Contractor is required to designate a washdown area for equipment and trucks. Catch
basins inlet protection and Pilfer fabric fencing shall remain in place until construction
on the site is complete.
i<P FF Consul.'ing Engineers -----------~--------~''cio zr 209?
Purvis KPFr Consulting Engineers
' Preliminary Drainace and Erosion Control Reoort
PART III -MAINTENANCE PLAN
Section 1 -Required Maintenance
The on-site storm drainage facilities will require occasional maintenance. The
following is based on minimum requirements as set forth in the Drainage Design and
Erosion Control Manual of Thurston County. The required maintenance and frequency
of maintenance are as follows:
The following pages contain maintenance needs for most of the components that are
part of your drainage system, as well as for some components that you may not have.
Let us know if there are any components that are missing from these pages. Ignore
the requirements that do not apply to your system. You should plan to complete a
checklist for all system components on the following schedule:
' 1. Monthly from November through April.
2. Once in late summer (preferably September).
3. After any major storm (use 1" in 24 hours as a guideline), items marked "S" only.
Using photocopies of these pages, check off the problems you looked for each time you
did an inspection. Add commentson problems found and actions taken. Keep these
' "Checked" sheets in your f les, as they will be used to write your annual report (due in
May). Some items do not need to be looked at every time an inspection is done. Use
the suggested frequency at the left of each item as a guideline for your inspection.
' You may call the CITY for technical assistance. Please do not hesitate to call,
especially if you are unsure whether a situation you have discovered may be a problem.
The on-site storm drainage facilities will require occasional maintenance. The following
is based on minimum requirements as set forth in the Drainage Design and Erosion
Control Manual of the City of Yelm.
,~
1
KPFF Consulting Engineers October 2007
' 7
1
Part III
Maintenance Plan
ATTACHMENT "A": MAINTENANCE PROGRAM
COVER SHEET
Inspection Period:
Number of Sheets Attached:
Date Ins
ected:
p
Name of Inspector:
'
Inspector
s Signature:
f
1
1
1
1
1
1
1
t
1
ATTACHMENT"A"
Maintenance Checklist for Conveyance Systems (Pipes and Swales)
1
1
1
Frequency Drainage System Req' Problem Conditions m Check For Conditions Tha[ Should
Fev[ure d Exist
M.S. Pipes J Sediment & Accumulated xdimen[ [hot Pipe cleaned of all
debris exceeds 2D%aRhe diameter of xdimen[nnd debris.
the i
M J Vegetation Vegetation that reduces Gee All vegetation removed x
movement of water through water flows Geely.
i es.
A Damaged Protective matlng is demvged, Pipe repeircd or rcplnced.
(rusted boot rust is causing m re [hen 50%
or crushed) deterioration m any pert of
i c.
M J Any dent that sigNGrantly Pipe repvired ar replaced.
impedes flow (i.e., decreases
thn cross section area of pipe
b more then 20%.
M J Pipe has major stacks or tears Pipe repaired or replaced.
allowing groundwamr leakage.
M.S. Swales J Trvsh & Dumping o[ynrd wastes each Remove trash and debris
debris as grass clippings and end dispose vs prescribed
branches into awale. by County waste
Unsightly accumWation o[ Management Section.
nondegradable materials such
as glees, plastic, metal, foam
end coated a er.
M Sediment Accumulated sediment thvt Swale cleaned of all
buildup exceeds 20%of the design sediment and debris nu
depth. [hat it marches design.
M Vegetation Grass cover is sparse end Aerem soils and rexed
not gm ing weedy or areas ore overgrown and mulch bete areas.
or overgrown with woody vegetation. Maintain grass height ata
minimum of G' far best
stormwvmr treatment.
Remove woody growth,
rccenmur and rexed ae
necessa
M,S J Erosion See ponds checklist See ponds checklist
damage m
ela s
M Conversion Swale has been filled in or If passible, npevk with
by blocked by shed, woadpila, hnmeDF.VELOPER and
homeDF.VEL shrubbery, etc. request the[ ewale area be
OPER m resmred. Contact City m
incompatible report problem if not
rectified vnlmtaril .
A Swale does Water stands in swale or flaw A survey may be needed to
not drain velocity is very slow. check grades. Grades need
S[ngnetion occurs. to be m 1% range S
possible. [f gratin is less
than 1%, underdrains may
need m be installed.
If you are unsure whether a problem exists, please mntuc[ the CITY end eak for technicvl assistance.
Comments:
Key: A=Annaal(March or April preferred)
M =Monthly (see scheduia)
Q = Qummrly
5 =After major amrma
ATTACHMENT "A"
Maintenance Checklist for Catch Basins and Inlets
Feeturc Drainage System Req'd Problem Conditions m Check Far Conditions Thet Should
Feature Exist
M.S. General J Trvsh, debris Trash or debris in front pf the No treah or debris lacvted
and sediment in catch basin opening is mediamly in front o[
ar on basiv blocking cnPncity by more catch basin opening. Grace
then la%. is kept clean end allows
water w enter.
hf J Sediment ar debris (N the No sediment or debris in
basin) that exceeds lB the the catch basin. Ceceh
depth Gom the botmm of bnsm is dug ovt and dean.
basin ro invert of the lowest
into or out of the basin.
M.S. J Truah ar debris iv any inlet or Inlet end outlet pipes free
pipe blacking mom then 1/3 of trash or debris.
of it's hei ht.
M J Structural Corner of &ame ex[enda mare F'rvme is even with curb.
dvmnge to frame than :1/4" past curb face into
and/or mp slab the street (if epphcable).
M J Top slab has holes larger 1'op slab is free of holes
than2inches ar cracks wider vnd cracks.
than 1/4' (intent is m make
sure all material ie running
into [hc basin).
M J Frvme not sitting flush an top Fra a is Bitting Duah on
slab, i.e., separation oCmore mp slab.
than 8l4" of the &ame from
the to slab.
q J Cracks in basin Cracks wider then ll2' end Eeein replviced er repaired
wullsRiot[om longor than 3', uny evidence In design standards.
of soil particles entering camh Contac[a proCessionvl
basin through cracks or engiveer for evaluation.
maintenance person judges
thvt atmcture is unsound.
q J Cracks wider than 1/2' vnd No cracks more then 1/4^
longer than t'et the join[o[ wide at the joint of
any inletlou[le[pipe ar any inleVoutlet pipe.
evidence of soil particles
entering cnmh basin through
cracks.
A J Se[tlemenUmis- Itvsin has settled more than Dasin replaced or repaired
alignvievt 1' or has rotvmd mozc than m design etendards.
2' out of ehgnment. Contact a professional
en 'near for evaluation.
~J
r
Maintenance Checklist for Catch Basins and Inlets (Continued)
M.S. J Eire hazard or Prcscace o(chemicals such as Na mlor, odor or sludge.
other pollution natural gne, oil and gasoline. Rasm is dugout and clean.
Obnoxious caloq odor or
slud a rated.
M.S. J Outlet pipe is Vegetation or roots growing No vegetation oc root
clogged with inleHoutlet pipe joints that Rrawth present.
vegetation is mare than G' tall and less
Lhsn 6" apart.
If you are unsure whether a problem exists, plwse contact the CITY and ask for technical assistance.
Comments:
Key: A=Annual (March or April preferred)
M =Monthly (aee schedule)
Q =Quarterly
S =After major storms
ATTACHMENT "A"
Maintenance Checklist £or Grounds (Landscaping)
Frequency Drainage Fieq' Problem Conditions w Check For Conditians'fhat Should
System d Exist
Feature
M General J Weeds Weeds growing in mare Weeds present in less than
(nonpoisonous) than 20%ofthe landxaped v%of the lendsraped urea.
area (trees and shrubs
and ).
M J Safety hozard Any presence Mpois~n ivy No poisovoue vegetation or
or othec poisonous ivsec[veata present in
ve station or ivsec[ nests. Imdsra d arcs.
M.S. J Trash & dehris Dumping of yard wastes Nemove trash and debris
buildup in open such es grass clippings end and dispose as prescribed
space branches. Unsightly by City Waste Mavagemen[
amumvlation of non- Suction.
degredabla mnwriala such
es glass, plastic, metal,
foam and meted pa cr
hf J Missing ar Any defect in the fence or Fence is mended or shrvbs
broken screen that permits easy replaced w form a solid
parts/deed entry w a facility. bvrrier w entry.
shrubbe
M.S. J Erosion Erosion has resulted in on Replace soil under team so
opening under n fence that that no opening exceeds n"
allows entry by people or in height Causes oferosion
pets. identified and steps taken
w slow down and/or eprcod
out the wamr. Eroded
vreae are filled. mnwured.
end seeded.
M J Unruly Shmbbery is growing out of Shrubbery is trimmed and
vegewtion control ar is infested with coded w provide
weeds. appealing aesthetira. Oo
not use chemicals w control
weeds.
A Trees and J Damage Limbs or parts o(trees or Trim treestshrubs wrestore
shrubs shrubs that ere split or shape. Replace
broken which affect more trees/shrubs with severe
than 25%of the wtal f liege damage.
of the [me or shrub.
M J Treca or shrubs that have Replant tree, inspecting for
been blown down or injury w stem or mote.
knocked over. Replace if severely
dame ed.
A J Trees or shrubs whreh are Flace stakes end rubber-
noL adequately supported or Dated ties around young '.,
arc leaning over, causin6 treeslshrubs for support
ex asure of the roots.
tf you are unsure whether a emblem exists, please contact [he CITY and ask for technical assistance.
Coro ants:
Key:m A=Annual (March or Aprilpreferred)
M =Monthly (sec schedule)
@=@uart'wrly
S =After major swrme
ATTACHMENT "A"
Maintenance Checklist for Pervious Concrete
Frequency Dmirmge Req'd Problem Cavditioosm Check FOr vod Candi[iom Thar Should
System Feemre Acrwn to Tvke Exie[
M, 5 Pervious J Sediment Ensure [Ae[ the pervious wncrete Sediment is removed
Concreu buildup on surf ie free o[cedimev[ andlor pvvemen[is
anrmae meanaa aP tna[
ivfilVation works
ewraing [p aeaiga
M1LE Pervious J Sedimev[ Ereure [hnt [he wotriburirig and Sediment is mmoved
Cormre[e buildup on vdjawnt lendswpe areas are evd/or pavement is
eurParn a[abaied and mowed, with deened so that
cbPP~nge removed in(d[rerwv works
rmrdi~m m design
4'nmeWear Pervious J Sedimev[ Vewum sweep porous wncrou SMimen[ia mmoved
Min. Conmere buildup on surface folbwed by high Pressure and/or pavement is
surface Iweing to keep Pores tree of cleaned w [het
eedimev[ ivfJ[ration works
wording [o design
Upon Failure Perrioue J Spo[dogging Pmlovged spat puddling on No [o minor amp.
Coverers pavemenuuAaw. Drill halFinch povdivg. Ivfiltm[iov
holes through [ho pavement every works awvrdingu
few [ t. design
If you are unsure whether s problem exists, please mntact the CITY end ask for mchnical assistance.
Comments:
Key: A=Mnuel (March or April paferred)
M = hfonthly (see schedule)
Q =Quarterly
S = ARer major storms
Appendix 1
Storm Drainage Calculations
PRELIMINARY DRAINAGE CALCULATIONS
The following calculations are based on the requirements contained in the 1992 edition of the
WSDOE Storm water Management Manual (SWMM).
DESIGN AND BASIN INFORMATION SUMMARY:
Predeveloped Condition:
8.49 ac Pasture or Range CN 79
Developed
Condition:
Basin A
1.75 ac Open spaces, lawns CN 90
1.95 ac Impervious Pavement Surtace CN 98
1.66 ac Roof Area CN 96
Treatment Calculations
Required wet pool volume per SWMM is the volume of the 6 month-24 hour storm.
Required Volume = 11,512 cf per Starmshed
Provided Volume = 26,208 cf
1
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i
Pagc 1 of 4
Appcuded on: 08:23:40 Monday, August 27, 2007
Warning, History file is now 0.80 MB in size
LPOOLCOMPUTE [Node] SUMMARY using Puls
Rfart of live sinraoe~ 100.0000 R
Eveut Match Q (cfs) Peak Q (efs) Peak Stg (ft) Vol (ct) Vol (acft) Time to Empty
6 mo 0.1418 0.1472 ] 01.3686 11512.07 0.2643 83.83
2 year 0.1779 0.1778 101.9966 18647.01 0.4281 96.00
10 year 1.0838 0.6880 102.1792 20944.42 0.4808 97.33
100 year 2.0160 1.4416 102.3332 22960.21 0.5271 97.83
Running I:\\2007\\407013.1 Purvis Plat\\Calculations\\Node Report.pgm on Monday,
August 27, 2007
Summary Report of all Detention Pond Data
Eveut Precip (iu)
6 mo 1.5000
2 year
5 yeaz 2.0000
2.5000
10 year 3.0000
25 year 3.5000
100 yeaz 4.0000
BASLIST2
[Predeveloped] Using [TYPEIA] As [6 mo]
[Developed] Using [TYPEIA] As [6 mo]
[Predeveloped] Using [TYPEIA] As [2 year]
[Developed] Using [TYPE]A] As [2 yeaz]
[Predeveloped] Using [TYPEIA] As [10 year]
[Developed] Using [TYPEl A] As [10 yeaz]
[Predeveloped] Using [TYPEIA] As [100 year]
[Developed] Using [TYPEIA] As [100 year]
LSTF.NI)
BasiulD
Event Peak
(efs)Q PeakT
(hrs) Peak Vol ac-
ct) ( Area
(ac)
Method/Loss
Raiotype
Predeveloped 6 mo 0.1418 17.00 0.1829 8.49 SBUI-I/SCS TYPEIA
Developed 6 mo 0.7053 8.50 0.4662 5.36 SBUIUSCS TYPEIA
Predeveloped 2year 0.3557 9.00 0.3696 8.49 SBUTi/SCS TYPEIA
Developed 2year 1.0567 8.17 0.6779 5.36 SBUH/SCS TYPEIA
Predeveloped l0 year 1.0838 850 0.8408 8.49 ~SBUH/SCS TYPEIA
r~ ~~ ~~ ~1 ~~ ~~ ~~ n
ai_.,rt.~~nnm nn-rn,~ . n.._._ m_.~n_i_ ~_.___ ~..~____ . ~ _.
Page 2 of 4
Developed
Predeveloped l0 year
yeaz 1.7701
2.0160 8.17
8.50 Llll7
1.3891 5.36
8.49 SBUH/SCS
SBUH/SCS TYPBIA
TYPEIA
Developed yeaz 2.4805 8.17 1.5513 5.36 SBUIUSCS TYPEIA
BASLIST [TYPEIA] AS [6 mo] DETAILED
[&eeveloped] [Developed] _
LSTEND
Record Id: Predeveloped
Design Method SBUH Rainfall type TYPEIA
Hyd Inri 10.00 min Peaking Factor 484.00
Abstraction Coeff 0.20
Pervious Area (AMC 2) 8.49 ac DCIA 0.00 ac
Pervious CN 79.00 llC CN 0.00
Pervious TC 50.68 min DC TC 0.00 min
Pervious CN Calc
Descri tion SubArea Sub cn
Pasture or range (fair) 8.49 ac 79.00
Pervious Composited CN (AMC 2) 79.00
Pervious TC Calc
Type Description Length Slope Coeff Misc TT
Sheet Dense grasses :0.24 680.00 fr 7.00% 0.2400 2.00 in 50.68 min
Pervious TC 50.68 min
Record Id: Developed
Design Method SBUH Rainfall type TYPEIA
Hyd Iutv 10.00 min Peaking Factor 484.00
Abstraction Coeff 0.20
Pervious Area (AMC 2) 0.00 ac DCIA 5.36 ac
Pervious CN 0.00 DC CN 95.39
Pervious TC 0.00 min DC TC 65.48 min
Directly Connected CN Calc
Description SubArea Sub cn
Open spaces, lawns, parks (50-75%grass) 1.75 ac 90.00
Impervious surfaces (pavements, roofs, etc) 3.61 ac 98.00
i
1
1
1
_~
Yage 3 of 4
fll DC Composited CN (AMC 2) 95.39
Directly Connected TC Calc
Type Descripfion Length Slope Cocff Misc TT
Sheet Short prairie grass and lawns.: 0.15 300.00 fr 0.50% 0.1500 2.00 in 51.97 min
Channel (interm) CMP pipe (n=0.024) 920.00 ft 0.50% 0.0240 10.21 min
Sheet Smooth Surfaces.: 0.011 150.00 ft 0,50% 0.0110 2.50 in 3.30 min
Directly Connected TC 65.48min
ITYDLIST SUMMARY
[6 mo out] [2 year out] [10 yeaz out] [100 year out]
LSTEND
HydID Peak Q (cfs) Peak T (hrs) Peak Vol (ac-ft) Cont Area (ac)
6 mo out 0.1472 24.17 0.4661 5.3600
2 year out 0.!778 24.33 0.6779 5.3600
10 yeaz out 0.6880 12.50 1.1116 5.3600
100 year out 1.4416 10.33 1.5513 5.3600
STORLIST
[Pond]
LSTEND
Record Id: Pond
Descrip: Prototype Record Increment 0.10 ft
Staff EL !00.0000 ft Max El. 106.0000 fr
Length 320.0000 ft Width 20.0000 ft
Length ss12.00hav Length ss20.0000hav~~
Width ssl 2.OOhav Width ss2 7.OOOOhavi
DISCHLIST
[Combo]
LSTEND
Record Id: Combo
Descrip: Prototype Structure Increment 0.10 ft
Start El. 2.5000 ft Max EL 107.0000 ft
List of Dischazge Structures: Onfice
Weir
Record Id: Orifice
Descrip: Pmtorype Structure Increment 0.10 ft
Start El. 100.0000 R Max El. 107.0000 ft
Orif Coeff 0.62 Lowest Orif El. 100.00
Lowest Diam 2.1533 in Dist to next 2.1000 ft
Record Id: Weir
Descrip: Prototype Structure Increment 0.10 ft
Start EI. 102.0000 ft Max El. 107.0000 ft
Length 2.00 ft
Cd 3.1300 Use vaziable Cd based on head for talcs
Licensed to: KPFF, [nc. -Olympia
Page 4 of 4
Page 1 of 6
Appended on: 08:32:32 Monday, August 27, 2007
Warning, History file is now 0.95 MB in size
Hvdroeranh H): 2 year nut
Area 5.3600 ac Hyd Int 10.00 min Base Ftow
Peak flow 0.1778 cfs Peak Time 24.33 hrs Hyd Vol 0.6779 acft
Time (hr) Flow (cfs) Time (hr) Rlow (cfs) Time (hr) Flow (cfs)
2.17 0.0000 33.50 0.1582 64.67 0.0561
2.33 0.0001 33.67 0.1577 64.83 0.0553
2.50 0.0003 33.83 0.1573 65.00 0.0545
2.67 0.0007 34.00 0.1569 65.17 0.0537
2.53 0.0013 34.17 0.1564 65.33 0.0529
3.00 0.0021 34.33 0.1560 65.50 0.0522
3.17 0.0031 34.50 0.1556 65.67 0.0514
3.33 0.0044 34.67 0.155 ( 65.83 0.0507
3.50 0.0060 34.83 0.1547 66.00 0.0500
3.67 0.0077 35.00 0.1543 66.17 0.0492
3.83 0.0098 35.17 O.I538 66.33 0.0485
4.00 0.0121 35.33 O.I534 ~ 66.50 0.0478
4.17 0.0147 35.50 0.1529 66.67 0.0471
4.33 0.0175 35.67 0.1525 66.83 0.0465
4.50 0.0207 35.83 0.1520 67.00 0.0458
4.67 0.0242 36.00 0.1516 67.17 0.0451
4.83 0.0280 36.17 0.1512 67.33 0.0445
5.00 0.0321 36.33 0.1507 67.50 0.0439
5.17 0.0366 36.50 0.1503 67.67 0.0432
5.33 0.0405 36.67 0.1498 67.83 0.0426
5.50 0.0425 36.83 0.1494 68.00 0.0420
5.67 0.0448 37.00 0.1490 68.17 0.0414
5.83 0.0473 37.17 0.1485 68.33 0.0408
6.00 0.0499 37.33 0.1480 68.50 0.0402
6.17 0.0528 37.50 0.1476 68.67 0.0394
6.33 0.0559 37.67 0. ] 471 68.83 0.0380
6.50 0.0584 37.83 0.1466 69.00 0.0366
6.67 0.0611 38.00 0.1462 69.17 0.0353
6.83 0.0640 38.17 0.1457 69.33 0.0340
7.00 0.0672 38.33 0.1453 69.50 0.0328
7.17 0.0703 38.50 0.1448 69.67 0.0317
+;iPdrt~wnno~nnvntz t n....,:.. of.,ar.,i,.,.t~r:...,..~nt,.,..o t t,r..,t vnannn~
Page 2 of 6
7.33 0.0734 38.67 0.1444 69.83 0.0305
7.50 0.0768 38.83 0.1439 70.00 0.0294
7.67 0.0806 39.00 0.1435 70.17 0.0284
7.83 0.0851 39.17 0.1430 70.33 0.0274
8.00 0.0907 39.33 0.1425 70.50 0.0264
8.17- 0.0965 39.50 0.1420 70.67 0.0254
8.33 0.1020 39.67 0.1416 70.83 0.0245
8.50 0.1071 39.83 0.1411 71.00 0.0236
8.67 0.1118 40.00 0.1406 71.17 0.0228
8.83 0.1160 40.17 0.1401 71.33 0.0220
9.00 0.1199 40.33 0.1397 71.50 0.0212
_ 9.17 0.1233 40.50 0.1392 71.67 0.0204
9.33 Q1265 40.67 0.1387 71.83 0.0]97
9.50 0.1293 40.83 0.1383 72.00 0.0190
9.67 0.1319 41.00 0.1378 72.17 0.0183
9.83 O.I342 41.17 0.1373 72.33 0.0177
10.00 0.1364 41.33 0.1368 72.50 0.0170
10.17 0.1384 41.50 0.1363 72.67 0.0164
10.33 0.1401 41.67 0.1358 72.83 0.0158
10.50 0.]418 41.83 0.1353 73.00 0.0153
10.67 0.1434 42.00 0.1349 73.17 0.0147
10.83 0.1448 42.17 0.1344 73.33 0.0142
11.00 0.1461 42.33 0.1339 73.50 0.0137
11.17 Q1474 42.50 0.1334 73.67 0.0132
11.33 0.1486 42.67 0.1329 73.83 0.0127
1 L50 0.1497 42.83 0.1325 74.00 0.0123
11.67 0.1507 43.00 0.1320 74.17 0.0118
11.83 0.1517 43.17 0.1315 74.33 0.0114
12.00 0.1526 43.33 0.1310 74.50 0.0110
12.17 0.1536 43.50 0.1305 74.67 0.0106
12.33 0.1544 43.67 0.1299 74.83 0.0102
12.50 0.1552 43.83 0.1294 75.00 0.0099
12.67 0.1560 44.00 0.1289 75.17 0.0095
12.83 0.1567 44.17 0.1284 75.33 0.0092
13.00 0.1574 44.33 0.1279 75.50 0.0088
13.17 0.1581 44.50 0.1274 75.67 0.0085
13.33 0.1587 44.67 0.1270 75.83 0.0082
13.50 0.1594 44.83 0.1265 76.00 0.0079
s~.,. no~onnv~emmo i o„n,;.. of.,an.,i,.,,~.,.:,..,..~nw,,..e i w...i onv.~nnv
1
13.67 0.1600 45.00 0.1260 76.17 0.0076
13.83 0.(606 45:17 0.1255 76.33 0.0074
14.00 0.1611 45.33 0.1249 76.50 0.0071
14.17 0.1617 45.50 0.1244 76.67 0.0068
14.33 0.1622 45.67 0.1239 76.83 0.0066
14.50 0.1627 45,83 0.1234 77.00 0.0064
14.67 0.1633 46.00 0.1228 77.17 0.0061
14.83 0.1638 46.17 0.1223 7733 0.0059
15.00 0.1642 46.33 0.1218 77.50 0.0057
15.17 0.1647 46.50 0.1213 77.67 0.0055
15.33 0.1651 46.67 0.1208 77.83 0.0053
15.50 0.1656 46.83 0.1203 78.00 0.0051
15.67 0.1660 47.00 0.1198 78.17 0.0049
(5.83 0.1664 47.17 0.1193 78.33 0.0047
16.00 0.1668 47.33 0.1187 78.50 0.0046
16.17 0.1672 47.50 0.1182 78.67 0.0044
16.33- 0.1676 47.67 0.1176 78.83 0.0043
16.50 0.1680 47.83 0.1171 79.00 0.0041
16.67 0.1683 48.00 0.1165 79.17 0.0040
16.83 0.1687 48.17 0.1160 79.33 0.0038
17.00 0.1691 48.33 0.1155 79.50 0.0037
17.17 0.1694 48.50 0.1149 79.67 0.0035
17.33 0.1697 48.67 0.1144 79.83 0.0034
17.50 0.1700 48.83 0.1139 80.00 0.0033
17.67 0.1704 49.00 0.1134 80.17 0.0032
17.83 0.1707 49.17 0.1128 80.33 0.0031
18.00 0.1710 49.33 0.1123 80.50 0.0030
18.17 0.1713 49.50 0.1117 80.67 0.0029
18.33 0.1715 49.67 0.1112 80.83 0.0027
18.50 0.1718 49.83 0.1106 81.00 0.0026
18.67 0.1721 50.00 0.1100 81.17 0.0026
18.83 0.1723 SO.l7 0.1095 81.33 0.0025
19.00 0.1726 50.33 0.1089 81.50 0.0024
19.17 0.1728 50.50 0.1084 81.67 0.0023
19.33 0.1731 50.67 0.1078 81.83 0.0022
19.50 0.1733 50.83 0.]073 82.00 0.0021
19.67 0.1735 51.00 0.1067 82.17 0.0021
19.83 0.1737 Sl.l7 0.1062 82.33 0.0020
Page 3 of 6
Page 4 of 6
20.00 0.1739 51.33 0.1057 82.50 0.0019
20.17 0.1741 51.50 0.1051 82.67 0.0018
. 20.33 0.1743 51.67 0.1045 82.83 0.0018
20.50 0.]745 51.83 0.1039 83.00 0.0017
20.67 0.1747 52.00 0.1034 83.17 0.0016
20.83 0.1748 52.17 0.1028 83.33 0.0016
21.00 0.1750 52.33 0.1022 83.50 0.0015
21.17 0.1752 52.50 0.1016 83.67 0.0015
21.33 0.1753 52.67 0.1011 83.83 0.0014
21.50 0.1755 52.83 0.1005 84.00 0.0014
21.67 0.1757 53.00 0.0999 84.17 0.0013
21.83 0.1758 53.17 0.0994 84.33 0.0013
22.00 0.1760 53.33 0.0988 84.50 0.0012
22.17 0.1762 53.50 0.0982 84.67 0.0012
2233 0.1763 53.67 0.0977 84.83 0.0011
22.50 0.1765 53.83 0.0971 85.00 0.0011
22.67 0.1766 54.00 0.0965 85.17 0.0011
22.83 0.1768 54.17 0.0959 85.33 0.0010
23.00 0.1769 54.33 0.0953 85.50 0.0010
23.17 0.1770 54.50 0.0947 85.67 0.0010
23.33 0.1772 54.67 0.0941 85.83 0.0009
23.50 0.1773 54.83 0.0935 86.00 0.0009
23.67 0.1774 55.00 0.0929 86.17 0.0009
23.83 0.1775 55.17 0.0923 86.33 0.0008
24.00 0.1776 SS.33 0.0917 86.50 0.0008
24.17 0.1777 SS.SO 0.0911 86.67 0.0008
24.33 0.1778 55.67 0.0905 86.83 0.0007
24.50 0.1778 55.83 0.0900 87.00 0.0007
24.67 0.1777 56.00 0.0894 87.17 0.0007
24.83 0.1776 56.17 0.0888 87.33 0.0007
25.00 0.1774 56.33 0.0882 87.50 0.0006
25.17 0.1773 56.50 0.0875 87.67 0.0006
25.33 0.1770 56.67 0.0869 87.83 0.0006
25.50 0.1768 56.R3 0.0862 88.00 0.0006
25.67 0.1765 57.00 0.0856 88.17 0.0006
25.83 0.1763 57.17 0.0850 88.33 0.0005
26.00 0.1760 57.33 0.0844 88.50 0.0005
26.17 0.1757 57.50 0.0838 88.67 0.0005
i
1
1
26.33 0.1753 57.67 0.0832 88.83 0.0005
26.50 0.1750 57.83 0.0825 89.00 0.0005
26.67 0.1747 58.00 0.0819 89.17 0.0004
26.83 0.1743 58.17 0.08(4 89.33 0.0004
27.00 0.1740 58.33 0.0808 89.50 0.0004
27.17 0.1736 58.50 0.0802 89.67 0.0004
27.33 0.1733 58.67 0.0796 89.83 0.0004
27.50 0.1729 58.83 0.0789 90.00 0.0004
27.67 0.1725 59.00 0.0782 90.17 0.0004
27.83 0.1721 59.17 0.0776 90.33 0.0003
28.00 0.1717 59.33 0.0769 90.50 0.0003
28.17 0.1713 59.50 0.0762 90.67 0.0003
28.33 0.1709 59.67 0.0756 90.83 0.0003
28.50 0.1706 59.83 0.0749 91.00 0.0003
28.67 0.1702 60.00 0.0743 91.17 0.0003
28.83 0.1698 60.17 0.0737 91.33 0.0003
29.00 0.1694 60.33 0.0730 91.50 0.0003
29.17 0.1690 60.50 0.0724 91.67 0.0003
29.33 0.1686 60.67 0.0718 91.83 0.0002
29.50 0.1682 60.83 0.0712 92.00 0.0002
29.67 0.1678 61.00 0.0705 92.17 0.0002
29.83 0.]674 61.17 0.0699 92.33 0.0002
30.00 0.1670 61.33 0.0693 92.50 0.0002
30.17 0.1665 61.50 0.0687 92.67 0.0002
30.33 0.1661 61.67 0.0680 92.83 0.0002
.30.50 0.1657 61.83 0.0673 93.00 0.0002
30.67 0.1653 62.00 0.0665 93.17 0.0002
30.83 0.1649 62.17 0.0658 93.33 0.0002
31.00 0.1645 62.33 0.0651 93.50 0.0002
31.17 0.1641 62.50 0.0645 93.67 0.0002
31.33 0.1637 62.67 0.0638 93.83 0.0002
31.50 0.1633 62.83 ~ 0.0631 94.00 0.0002
31.67 0.1628 63.00 0.0624 94.17 0.0001
31.83 0.1624 63.17 0.0618 94.33 0.0001
32.00 0.1620 63.33 0.0611 94.50 0.0001
32.17 0.1616 63.50 0.0605 94.67 0.0001
32.33 0.1611 63.67 0.0598 94.83 0.0001
32.50 0.1607 63.83 0.0592 95.00 0.0001
Page 5 of 6
fio~in~wnm~amma t o,...,:.. oL,aC.,h,.L,~:...,dD6eee L6~.,.1 onai~nnv
Page 6 of 6
32.67 0.1603 64.00 0.0586 95.17 0.0001
32.83 0.1599 64.17 0.0579 95.33 0.000]
33.00 0.1595 64.33 0.0573 95.50 0.0001
33.17 0.1590 64.50 0.0567 95.67 0.0001
33.33 0.1586 64.67 0.0561 95.83 0.0001
Licensed to: KPPP, Inc. -Olympia
file://I:\2007\407013.1 Purvis Plat\Calculations\Phase l.himl unvnnm
1
1
Appended on: 08:25:32 Mondag August 27, 2007
Warning, History file is now 0.92 MB in size
Hvdroeranh IB: 10 year not
Area 5.3600 ac Hyd Int ] 0.00 min Base Flow
Peak flow 0.6880 cfs Peak Time 12.50 hrs Hyd Vol 1.1116 acft
Time (hr) Flow (cfs) Time (hr) Flow (cfs) Time (hr) Flow (cfs)
t.50 0.0000 33.50 0.1614 65.33 0.0583
1.67 0.0001 33.67 0.1609 65.50 0.0577
].83 0.0003 33.83 0.1605 65.67 0.0570
2.00 0.0008 34.00 0.1601 65.83 0.0564
2.t7 0.0017 34.17 0.1597 66.00 0.0557
2.33 0.0030 34.33 0.1593 66.17 0.0549
2.50 0.0047 34.50 0.1588 66.33 0.0541
2.67 0.0069 34.67 0.1584 66.50 0.0533
2.83 0.0096 34.83 0.1580 66.67 0.0526
3.00 0.0128 35.00 0.1575 66.83 0.0518
3.17 0.0164 35.17 0.1571 67.00 0.0511
3.33 0.0204 35.33 0.1567 67.17 0.0503
3.50 0.0249 35.50 0.1562 67.33 0.0496
3.67 0.0298 35.67 0.1558 67.50 0.0489
3.83 0.0351 35.83 0.1554 67.67 0.0482
4.00 0.0402 36.00 0.1549 67.83 0.0475
4.17 0.0427 36.17 0.1545 68.00 0.0468
4.33 0.0454 36.33 0.1541 68.17 0.0461
4.50 0.0483 36.50 0.1536 68.33 0.0455
4.67 0.0515 36.67 0.1532 68.50 0.0448
4.83 0.0550 36.83 0.1527 68.67 0.0442
5.00 0.0580 37.00 0.1523 68.83 0.0436
5.17 0.0610 37.17 0.1518 69.00 0.0429
5.33 0.0641 37.33 0.1514 69.17 0.0423
5.50 0.0675 37.50 0.1509 69.33 0.0417
5.67 0.0707 37.67 0.1505 69.50 0.0411
5.83 0.0738 37.83 0.1501 69.67 0.0405
6.00 0.0771 38.00 0.1496 69.83 0.0399
6.17 0.0804 38.17 0.1492 70,00 0.0387
633 0.0836 38.33 0.1487 70,17 0.0373
6.50 0.0869 38.50 0.1483 70.33 0.0360
Page I of 6
Page 2 of 6
6.67 0.0903 38.67 0.1478 70.50 0.0347
6.83 0.0937 38.83 0.1473 70.67 0.0335
7.00 0.0973 39.00 0.1469 70.83 0.0323
7.17 0.1008 39.17 0.1464 71.00 0.0311
7.33 0.1045 39.33 0.1460 71.17 0.0300
7.50 O.I082 39.50 0.1455 71.33 0.0289
7.67 0.1125 39.67 0.1451 71.50 0.0279
7.83 0.1175 39.83 0.1446 71.67 0.0269
8.00 0.1235 40.00 0.1441 71.83 0.0259
8.17 0.1298 40.17 0.1437 72.00 0.0250
8.33 0.1358 40.33 0.1432 72.17 0.0241
8.50 0.1414 40.50 0.1428 72.33 0.0232
8.67 0.1464 40.67 0.1423 72.50 0.0224
8.83 0.]510 40.83 0.1418 72.67 0.0216
9.00 0.1552 41.00 0.1413 72.83 0.0208
9.17 0.1590 41.17 0.1409 73.00 0.0201
9.33 0.1624 41.33 0.1404 73.17 0.0194
9.50 0.1654 41.50 0.1399 73.33 0.0187
9.67 0.1683 41.67 0.1394 73.50 0.0180
9.83 0.1708 41.83 0.1390 73.67 0.0174
10.00 0.1732 42.00 0.1385 73.83 0.0167
10.17 0.1753 42.17 0.1380 74.00 0.0161
10.33 0.1773 42.33 0.1376 74.17 0.0156
10.50 0.2333 42.50 0.1371 74.33 0.0150
10.67 0.3060 42.67 0.1366 74.50 0.0145
10.83 0.3676 42.83 0.1361 74.67 0.0139
11.00 0.4416 43.00 0.1356 74.83 0.0134
11.17 0.5123 43.17 0.1351 75.00 0.0130
11.33 0.5665 43.33 0.1346 75.17 0.0125
11.50 0.6073 43.50 0.1341 75.33 0.0120
11.67 0.6375 43.67 0.1337 75.50 0.0116
11.83 0.6589 43.83 0.1332 75.67 0.0112
12.00 0.6734 44.00 0.1327 75.83 0.0108
12.17 0.6825 44.17 0.1322 76.00 0.0104
12.33 0.6870 44.33 0.13]7 76.17 0.0100
12.50 0.6880 44.50 0.1312 76.33 0.0097
12.67 0.6864 44.67 0.1307 76.50 0.0093
12.83 0.6824 44.83 0.1302 76.67 0.0090
si>drt~ronnv~anoma t n,,.,a~ piartrat~~~t~r;,..,~tot,~« t Ur..,i un~nnm
1
1
1
13.00 0.6768 45.00 0.1297 76.83 0.0087
13.17 0.6701 45.17 0.!292 77.00 0.0084
13.33 0.6628 45.33 0.1287 77.17 0.0081
13.50 0,6552 45.50 0.1282 77.33 0.0078
13.67 0,6474 45.67 0.1277 77.50 0.0075
13.83 0.6393 45.83 0.1272 77.67 0.0072
14.00 0.6310 46.00 0.1267 77.83 0.0070
14.17 0.6227 46.17 0.1262 78.00 0.0067
14.33 0.6147 46.33 0.1257 78.17 0.0065
14.50 0.6070 46.50 0.1252 78.33 0.0062
14.67 0.5996 46.67 0.1247 78.50 0.0060
14.83 0.5922 46.83 0.1241 78.67 0.0058
15.00 0.5848 47.00 0.1236 78.83 0.0056
15.17 0.5776 47.17 0.1231 79.00 0.0054
15.33 0.5706 47.33 0.]226 79.17 0.0052
15.50 0.5640 47.50 0.1221 79.33 0.0050
15.67 0.5577 47.67 0.1216 79.50 0.0048
15.83 0.5514 47.83 0.1210 79.67 0.0047
16.00 0.5450 48.00 0.1205 79.83 0.0045
16.17 0.5386 48.17 0.1200 80.00 0.0043
16.33 0.5326 48.33 0.1195 80.17 0.0042
16.50 0.5268 48.50 0.1190 80.33 0.0040
16.67 0.5214 48.67 0.1484 80.50 0.0039
16.83 0.5164 48.83 0.]179 80.67 0.0038
17.00 0.5118 49.00 0.1174 80.83 0.0036
17.17 0.5074 49.17 0.1168 81.00 0.0035
17.33 0.5028 49.33 0.1163 81.]7 0.0034
17.50 0.4982 49.50 0.1157 81.33 0.0032
]7.67 0.4935 49.67 0.1152 81.50 0.0031
17.83 0.4890 49.83 0.1 L47 81.67 0.0030
18.00 0.4846 50.00 0.1142 81.83 0.0029
18.17 0.4803 50.17 0.1136 82.00 0.0028
18.33 0.4758 50.33 O. t 131 82. ] 7 0.0027
18.50 0.4710 50.50 0.1126 82.33 0.0026
18.67 0.4662 50.67 0.1120 82.50 0.0025
18.83 0.4614 50.83 0.1115 82.67 0.0024
19.00 0.4568 51.00 0.1109 82.83 0.0023
19.17 0.4523 51.17 0.1103 83.00 0.0023
Page 3 of 6
Page 4 of 6
19.33 0.4475 51.33 0.1098 83.77 0.0022
19.50 0.4425 51.50 0.1092 83.33 0.0021
19.67 0.4375 51.67 0.1087 83.50 0.0020
19.83 0.4325 51.83 0.1081 83.67 O.OOl9
20.00 0.4277 52.00 0.1076 83.83 O.OOl9
20.17 0.4231 52.17 0.1070 84.00 0.0018
20.33 0.4189 52.33 0.1065 84.17 0.0017
20.50 0.4149 52.50 0.1060 84.33 0.0017
20.67 0.4112 52.67 0.1054 84.50 0.0016
20.83 0.4079 52.83 0.1048 84.67 0.0016
21.00 0.4048 53.00 0.1042 84.83 0.0015
21.17 0.4021 53.17 0.1037 85.00 0.0015
2].33 0.3996 53.33 0.1031 85.17 0.0014
21.50 0.3973 53.50 0.1025 85.33 O.OOl4
21.67 0.3953 53.67 O.I019 85.50 O.OOI3
21.83 0.3935 53.83 0.1013 85.67 0.0013
22.00 0.3920 54.00 0.1008 85.83 0.00]2
22.17 0.3904 54.17 0.1002 86.00 0.0012
22.33 0.3885 54.33 0.0996 86.17 0.0011
22.50 0.3871 54.50 0.0991 86.33 0.0011
22.67 0.3855 54.67 0.0985 86.50 0.0010
22.83 0.3838 54.83 0.0980 86.67 0.0010
23.00 0.3820 SS.00 0.0974 86.83 0.0010
23.17 0.3801 55.17 0.0968 87.00 0.0009
23.33 0.3783 55.33 0.0962 87.17 0.0009
23.50 0.3764 55.50 0.0956 87.33 0.0009
23.67 0.3746 55.67 0.0950 87.50 0.0008
23.83 0.3729 55.83 0.0944 87.67 0.0008
24.00 0.3712 56.00 0.0938 87.83 0.0008
24.17 0.3684 56.17 0.0932 88.00 0.0008
24.33 0.3624 56.33 0.0926 88.17 0.0007
24.50 0.3528 56.50 0.0920 88.33 0.0007
24.67 0.3405 56.67 0.0914 88.50 0.0007
24.83 0.3264 56.83 0.0908 88.67 0.0007
25.00 0.3109. 57.00 0.0903 88.83 0.0006
25.17 0.2947 57.17 0.0897 89.00 0.0006
25.33 0.2780 57.33 0.0891 89.17 0.0006
25.50 0.2613 57.50 0.0885 89.33 0.0006
fiP~im~~nm~ammz r n.,..,~<niar~r~i~~aar;~.,~~aH~~P i H...,i vnannno
1
i
1
1
1
25.67 0.2448 57.67 0.0878 89.50 0.0005
25.83 0.2287 57.83 0.0872 89.67 0.0005
26.00 02730 58.00 0.0866 89.83 0.0005
26.17 0.1980 58.17 0.0859 90.00 0.0005
26.33 0.1836 58.33 0.0853 90.17 0.0005
26.50 0.1778 58.50 0.0847 90.33 0.0005
26.67 0.1774 58.67 0.0841 90.50 0.0004
26.83 0.1771 58.83 0.0835 90.67 0.0004
27.00 0.1768 59.00 0.0829 90.83 0.0004
27.17 0.1764 59.17 0.0823 91.00 0.0004
27.33 0.1761 59.33 0.0817 91.17 0.0004
27.50 0.1757 59.50 0.0811 91.33 0.0004
27.67 0.1754 59.67 0.0805 91.50 0.0004
27.83 O.I750 59.83 0.0799 9L67 0.0003
28.00 0.1747 60.00 D.0793 9].83 0.0003
28.17 0.1743 60.17 0.0786 92.00 0.0003
28.33 0.1739 60.33 0.0779 92.17 0.0003
28.50 0.1735 60.50 0.0772 92.33 0.0003
28.67 0.1732 60.67 0.0766 92.50 0.0003
28.83 0.1728 60.83 0.0759 92.67 0.0003
29.00 0.1724 61.00 0.0753 92.83 0.0003
29.17 0.1720 61.17 0.0746 93.00 0.0003
29.33 0.1716 61.33 0.0740 93.17 0.0002
29.50 0.1712 61.50 0.0733 93.33 0.0002
29.67 0.1708 61.67 0.0727 93.50 0.0002
29.83 0.1704 61.83 0.0721 93.67 0.0002
30.00 O.I700 62.00 0.0715 93.83 0.0002
30.17 0.1696 62.17 0.0709 94.00 0.0002
30.33 0.1692 62.33 0.0703 94.17 0.0002
30.50 0.1688 62.50 0.0697 94.33 0.0002
30.67 0.1684 62.67 0.0691 94.50 0.0002
30,83 0.1680 62.83 0.0684 94.67 0.0002
31.00 0.1676 63.00 0.0676 94.53 0.0002
31.17 0.1672 63.17 0.0669 95.00 0.0002
31.33 0.1668 63.33 0.0662 95.17 0.0002
31.50 0.1664 63.50 0.0655 95.33 0.0002
31.67 0.1659 63.67 0.0648 95.50 0.000]
31.83 0.1655 63.83 0.0641 95.67 0.0001
Page 5 of 6
Page 6 of 6
32.00 0.1651 64.00 0.0634 95.83 0.0001
32.17 0.1647 64.17 0.0628 96.00 0.000!
32.33 0.1643 64.33 0.0621 96.17 0.0001
32.50 0.]639 64.50 0.0615 96.33 0.0001
32.67 O.I635 64.67 0.0608 96.50 0.0001
32.83 0.1631 64.83 0.0602 96.67. 0.0001
33.00 0.1626 65.00 0.0595 96.83 0.0001
33.17 0.1622 65.17 0.0589 97.00 0.0001
33.33 0.1618 65.33 0.0583 97.17 0.0001
Licensed to: KPFF, Inc. -Olympia
stP in l~nm~mm~t3 1 v~~*.,t~ V1aAratriaarinnc~PFncr t tirmi un~nnm
' Appended on: 08:32:40 Monday, August 27, 2007
Warning, History file is now 0.98 MB in size
Hvdroeraoh ID: 100 vear out
IJ
1
1
Area 5.3600 ac Hyd Int 10.00 min Base Flow
Peak flow 1.4416 cfs Peak Time 10.33 hrs -Hyd Vol LSS13 acft
Time (hr) Flow (cfs) Time (hr) Flow (cfs) Time (hr) Flow (cfs)
1.U 0.0000 33.50 0.1625 65.67 0.0587
1.33 0.0001 33.67 0.1621 65.83 0.058]
1.50 0.0004 33.83 0.1616 66.00 0.0574
1.67 0.0011 34.00 0.1612 66.17 O.OS68
1.83 0.0023 34.17 0.1608 66.33 O.OS62
2.00 0.0041 34.33 0.1604 66.50 O.OS54
2.17 0.0066 34.50 0.1600 66.67 O.OS46
2.33 0.0099 34.67 O.1S9S 66.83 O.OS38
2.50 0.0139 34.83 0.1591 67.00 O.OS3]
2.67 0.0188 35.00 O.1S87 67.17 O.OS23
2.83 0.0243 35.17 O.IS83 67.33 0.0516
3.00 0.0305 35.33 O.1S78 67.50 O.OS08
3.17 0.0374 35.50 O.IS74 67.67 O.OSOI
3.33 0.0418 3S.G7 O.1S69 67.83 0.0494
3.50 0.0451 35.83 0.1565 68.00 0.0487
3.67 0.0486 36.00 0.1561 68.17 0.0480
3.83 O.OS24 36.17 O.15S7 68.33 0.0473
4.00 O.OS65 36.33 O.1SS2 68.50 0.0466
4.17 O.OS97 36.50 0.1548 68.67 0.0459
4.33 0.0632 36.67 0.1544 68.83 0.0453
4.50 0.0669 36.83 O.1S39 69.00 0.0446
4.67 0.0705 37.00 O.IS3S 69.17 0.0440,
4.83 0.0739 37.17 O.IS30 69.33 0.0433
5.00 0.0776 37.33 0.1526 69.50 0.0427
5.17 0.0812 37.50 O.IS21 -69.67 0.0421
5.33 0.0847 37.67 0.1517 69.83 0.0415
S.SO 0.0884 37.83 0.1512 70.00 0.0409
5.67 0.0919 38.00 O.1S08 70.17 0.0403
5.83 0.09SS 38.17 0.1504 70.33 0.0397
6.00 0.0991 38.33 0.1499 70.50 0.0382
6.17 0.1026 38.50 0.1495 70.67 0.0369
Page 1 of 6
cto.irt.~~nnm nnama i n.._.:.. m_a n_i__~_.:___~m___ . ~_.__~ .. ..... .........
Page 2 of 6
6.33 0.1063 38.67 0.1490 70.83 0.0356
6.50 0.1098 38.83 0.1486 71.00 0.0343
6.67 0.1135 39.00 0.1481 71.17 0.0331
6.83 0.1172 39.17 0.1477 71.33 0.0319
7.00 0.1210 39.33 0.1472 7150 0.0307
7.17 0.124R 39.50 0.1467 71.67 0.0296
7.33 0.1287 39.67 0.1463 71.83 0.0286
7.50 0.1328 39.83 0.1458 72.00 0.0275
7.67 0.1371 40.00 0.1454 72.17 0.0266
7.83 0.1424 40.17 0.1449 72.33 0.0256
8.00 0.1487 40.33 0.1444 72.50 0.0247
8.17 0.1552 40.50 0.1440 72.67 0.0238
8.33 0.1615 40.67 0.1435 72.83 0.0230
8.50 0.1672 40.83 0.1431 73.00 0.0221
8.67 0.1725 41.00 0.1426 73.17 0.0213
8.83 0.1773 41.17 0.1421 73.33 0.0206
9.00 0.3462 41.33 0.1416 73.50 0.0198
9.17 0.6072 41.50 0.1412 73.67 0.0191
9.33 0.8530 41.67 0.1407 73.83 0.0(84
9.50 1.0640 41.83 0.1402 74.00 0.0178
9.67 1.2132 42.00 0.1398 74.17 0.0171
9.83 1.3220 42.17 0.1393 74.33 0.0165
10.00 1.3924 42.33 0.1388 74.50 0.0159
10.17 1.4296 42.50 0.1384 74.67 0.0154
10.33 1.4416 42.67 0.1379 74.83 0.0148
10.50 1.4355 42.83 0.1374 75.00 0.0143
10.67 1.4170 43.00 0.1369 75.17 0.0138
10.83 1.3895 43.17 0.1360. 75.33 0.0133
11.00 L3563 43.33 0.1359 75.50 0.0128
11.17 1.3199 43.50 0.1354 75.67 0.0123
11.33 1.2821 43.67 0.1350 75.83 0.0119
11.50 1.2451 43.83 0.1345 76.00 0.0115
11.67 1.2121 44.00 0.1340 76.17 0.0111
] 1.83 1.1792 44.17 0.1335 76.33 0.0107
12.00 1.1471 44.33 0.!330 76.50 0.0103
12.17 1.1161 44.50 0.]325 76.67 0.0099
12.33 1.0861 44.67 0.1321 76.83 0.0096
12.50 .1.0575 44.83 0.1316 77.00 0.0092
filP~//i-\9007\d07017 1 Pnrvic PIaA('alrnlatinnc\Phnse 1 him! R/77/7007
1
1
1
1
1
1
1
1
12.67 1.0302 45.00 0.1311 77.17 0.0089
12.83 1.0041 45.17 0.1305 77.33 0.0086
13.00 0.9793 45.33 0.1300 77.50 0.0083
13.17 0.9560 45.50 0.1295 77.67 0.0080
13.33 0.9345 45.67 0.1290 77.83 0.0077
13.50 0.9148 45.83 0.1285 78.00 0.0074
]3.67 0.8966 46.00 0.1280 78.17 0.0071
13.83 0.8793 46.17 O.I275 78.33 0.0069
14.00 0.8630 46.33 0.1270 78.50 0.0066.
14.17 0.8476 46.50 0.1266 78.67 0.0064
14.33 0.8335 46.67 0.1261 78.83 0.0062
14.50 0.8205 46.83 0.1256 79.00 0.0060
14.67 0.8085 47.00 0.1250 79.17 0.0057
14.83 0.7968 47.17 0.1245 79.33 0.0055
15.00 0.7854 47.33 0.1240 79.50 0.0053
15.17 0.7746 47.50 0.1235 79.67 0.0051
15.33 0.7648 47.67 0.1229 79.83 0.0050
15.50 0.7571 47.83 0.1224 80.00 0.0048
15.67 0.7494 48.00 0.1219 80.17 0.0046
15.83 0.7416 48.17 0.1214 80.33 0.0044
16.00 0.7335 48.33 0.1209 80.50 0.0043
16.17 0.7255 48.50 0.1204 80.67 0.0041
16.33 0.7176 48.67 0.1 ] 99 80.83 0.0040
16.50 0.7102 48.83 0.1194 81.00 0.0038
16.67 0.7031 49.00 0.1188 81.17 0.0037
16.83 0.6965 49.17 0.1183 81.33 0.0036
17.00 0.6904 49.33 0.1177 81.50 0.0034
17.17 0.6845 49.50 0.1 ] 72 81.67 0.0033
17.33 0.6785 49.67 0.1166 8].83 0.0032
17.50 0.6722 49.83 0.1161 82.00 0.0031
17.67 0.6659 50.00 0.1156 82.17 0.0030
17.83 0.6598 50.17 0.1150 82.33 0.0029
18.00 0.6539 50.33 0.1145 82.50 0.0028
18.17 0.6480 50.50 0.1140 82.67 0.0027
18.33 0.6414 50.67 0.1135 82.83 0.0026
18.50 0.6354 50.83 0.1129 83.00 0.0025
18.67 0.6289 51.00 0.1124 83.17 0.0024
18.83 0.6224 51.17 0.1118 83.33 0.0023
Page 3 of 6
Page 4 of 6
19.00 0.6162 51.33 0.1113 83.50 0.0022
19.17 0.6100 51.50 0.1107 83.67 0.0021
19.33 0.6035 51.67 0.1102 83.83 0.0021
19.50 0.5967 51.83 0.1096 84.00 0.0020
19.67 0.5899 52.00 0.1090 84.17 0.0019
19.83 0.5831 52.17 0.1085 84.33 O.OOl9
20.00 0.5766 52.33 0.1079 84.50 0.0018
20.17 0.5'704 52.50 0.1074 84.67 0.0017
20.33 0.5646 52 67 0.1068 84.83 0.0017
20.50 0.5592 52.83 0.1063 85.00 0.0016
20.67 0.5542 53.00 0.1058 85.1'7 0.0015
20.83 0.5496 53.17 0.1052 85.33 0.0015
21.00 0.5455 53.33 0.1046 85.50 0.0014
21.17 0.5417 53.50 0.1041 85.67 0.0014
21.33 0.5383 53.67 0.1035 85.83 0.0013
21.50 0.5352 53.83 0.1029 86.00 0.0013
21.67 0.5325 54.00 0.1023 86.17 0.0012
21.83 0.5301 54.17 O.I017 86.33 0.0012
22.00 0.5279 54.33 0.1012 86.50 0.0012
22.17 0.5257 54.50 0.1006 86.67 0.0011
22.33 0.5231 54.67 0.1000 86.83 0.0011
22.50 0.5200 54.83 0.0995 87.00 0.0010
22.67 0.5165 55.00 0.0989 87.17 0.0010
22.83 0.5130 55.17 0.0983 87.33 0.0010
23.00 0.5094 55.33 0.0978 87.50 0.0009
23.17 0.5060 55.50 0.0972 87.67 0.0009
23.33 0.5026 55.67 0.0966 87.83 0.0009
23.50 0.4995 55.83 0.0960 88.00 0.0008
23.67 0.4965 56.00 0.0954 88.17 0.0008
23.83 0.4938 56.17 0.0948 88.33 0.0008
24.00 0.4912 56.33 0.0942 88.50 0.0007
24.17 0.4862 56.50 0.0936 88.67 0.0007
24.33 0.4740 56.67 0.0930 88.83 0.0007
24.50 0.4543 56.83 0.0924 89.00 0.0007
24.67 0.4296 57.00 0.0918 89.17 0.0006
24.83 0.4019 57.17 0.0912 89.33 0.0006
25.00 0.3791 57.33 0.0906 89.50 0.0006
25.17 0.3610 57.50 0.0901 89.67 0.0006
ate. ur.~onna~envnia i n......:., oi..a r.,i,., d.,.:,.«.an~.....e i w....i on-unnnv
1
1
1
1
25.33 0.342] 57.67 0.0895 59.83 0.0006
25.50 0.3227 ~ 57.83 0.0889 90.00 0.0005
25.67 0.3033 58.00 0.0883 90.17 0.0005
25.83 0.2840 58.17 0.0876 90.33 0.0005
26.00 0.2653 58.33 0.0870 90.50 0.0005
26.17 0.2471 58.50 0.0864 90.67 0.0005
26.33 0.2296 58.67 0.0857 90.83 0.0004
26.50 0.2129 58.83 0.0851 91.00 0.0004
26.67 0.1970 59.00 0.0845 91.17 0.0004
26.83 0.1820 59.17 0.0839 9].33 0.0004
27.00 0.1777 59.33 0.0833 9].50 0.0004
27.17 0.1774 59.50 0.0827 91.67 0.0004
27.33 0.1771 59.67 0.0821 91.83 0.0004
27.50 0.1767 59.83 0.0815 92.00 0.0003
27.67 0.1764 60.00 0.0809 92.17 0.0003
27.83 0.1760 60.17 0.0803 92.33 0.0003
28.00 0.1756 60.33 0.0797 92.50 0.0003
28.17 0.1753 60.50 0.0790 92.67 0.0003
28.33 0.1749 60.67 0.0784 92.83 0.0003
28.50 0.1746 60.83 0.0777 93.00 0.0003
28.67 0.1742 61.00 0.0770 93.17 0.0003
28.83 0.1738 61.17 0.0764 93.33 0.0003
29.00 0.1734 61.33 0.0757 93.50 0.0002
29.17 0.1730 61.50 0.0751 93.67 0.0002
29.33 0.1726 61.67 0.0744 93.83 0.0002
29.50 0.1723 61.83 0.0738 94.00 0.0002
29.67 0.]719 62.00 0.0731 94.17 0.0002
29.83 0.1715 62.17 0.0725 94.33 0.0002
30.00 0.1711 62.33 0.0719 94.50 0.0002
30.17 0.1707 62.50 0.0713 94.67 0.0002
30.33 0.1703 62.67 0.0707 94.83 0.0002
30.50 0.1699 62.83 0.0701 95.00 0.0002
30.67 0.1695 63.00 0.0695 95.17 0.0002
30.83 0.1691 63.17 0.0688 95.33 0.0002
31.00 0.1687 63.33 0.0681 95.50 0.0002
31.17 0.1683 63.50 0.0674 95.67 0.0002
31.33 0.1679 63.67 0.0667 95.83 0.0001
31.50 0.1675 63.83 0.0660 96.00 0.0001
Page 5 016
Page 6 of 6
31.67 0. ] 670 64.00 0.0653 96.17 0.0001
31.83 0.1666 64.17 0.0646 96.33 0.0001
32.00 0.1662 64.33 0.0639 96.50 0.0001
32.17 0.1658 64.50 0.0632 96.67 0.0001
32.33 0.1654 64.67 0.0626 96.83 0.0001
32.50 O.I650 64.83 0.0619 97.00 0.0001
32.67 0.1646 65.00 0.0612 97.17 0.0001
32.83 0.1642 65.17 0.0606 97.33 0.0001
33.00 0.1638 65.33 0.0599 97.50 0.0001
33.17 0.1633 65.50 0.0593 97.67 0.0001
33.33 0.1629 65.67 0.0587 97.83 0.0001
Licensed to: KPFF, Inc. -Olympia
F.L../n.\9nnm nn'1ma t n.....:,.m...\!'~1.... L.F......\n6......1 6....1 ol')'i l')nm
1
1
Appendix 2
Basin Map
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Appendix 3
Vicinity Map
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Lacey, Wo»inq(m 99503 pgiE
(360f 191-]130 fa. (J90 191-)131 &2010]
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Appendix 4
FEMA Map
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ELEVATION REFERENCE MARKS
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I REFERENCE ELEVATION
/
II MARK (FT. NGVD) DESCRIPTION OF LOCATION
RM213 ZG6.66 Nail entl tin in ed9a of 6sate HlRhway 510 of intersection with tlirt
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II ~ i, COMMUNITY~PANEL NUMBEA
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1
Appendix 5
Facility Summary Forms
THURSTON REGION
FACILITY SUMMARY FORM
Complete one (1( for each facility (detention/retention, coalescing plate Slter,
etc.( on the project site. Attach 8 1/2 x 11 sketch showing location of facility.
Proponent's Facility Name or Identifier (e.g., Pond A): See Part 6
Name of Road or Street to Access Facility: Berry Valley Rd SE
Hearings Examiner Case Number.
Deuelopment Reu. Project No./Bldg Permit No.:
Parce! Number 21723140101
To be completed by Utility Staff:
Utility Facility Number
Project Number (num(
Pazcel Number Status: (num, lch(
0, Known; 1, Public; 2
Unknocm; 3, Unassigned
Basin and Subbasin: (num, 6ch)
(2ch for basin, 2ch for Subbasin,
2ch future
Responsible jurisdiction: (alpha,
lch(
Part 1 - Project Name and P oo ent
Project Name: Puntis
Project Owner: Terra Valley LLC
Address: P.O. Box 627. Rainier WA 98576 (360) 951-7868
Project Proponent: /if different/ Sarne
Address: Same
Phone: Same
Project Engineer. Nicholas D. Taylor
Firm: KPFF Consulting Engineers Phone: /360J 292 7230
Pazt 2 -Proiect Location
Section 24
Township 17N
Range IE
Part 3 -Type of Permit Application
Type of permit le.g., Commercial Bldg):
Other Penrtits (circle)
^DOF/W HPA
^COE Wetlands
^FEMA
^Shoreline Mgmt
^Encroachmen[
^NPDES
Grading, Storm Drainage
^COE 404
^DOE Dam Safely
^Floodplain
^Rockery/Retaining Wa(1
®Grading
®Other Siann Drainage
Other Agencies (Federal, State, Loral, e[aJ that have had or will review this
Drainage Erosion Control Plan:
Washington State Department of Transportation (WSDOT)
Part 4 -Proposed Proiect Description
What stream basin is this project in (e.g., Peraual, Woodland): Thompson
Creek
Project Size, acres 6.43
Zoning:
Onsite:
Residenrial Subdivision:
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:
R-4
6.43
Yes
24
1/8
N/A
1.66
0.96
0.99
Private Roads (including sidewalks), acres
Onsite Impervous Surface Total, acres: 3.61
Pazt 5 -Pre-Developed Proiect Site Characteristics
Stream through site, v/n: No
Name:
DNR 7}~pe:
Type of Ceature this facility dischazges to (i.e., lake, stream, intermittent
stream, pothole, roadside ditch, sheetRow [o adjacent private property, etc.):
sheetllow to wetland
Swates, Ravines, y/n: Na
Steep slopes, (steeper than IS%/, y/n: No
Erosion hazard, y/n: No
100 yr. Flaodplain, y/n: No
Lakes or Wetlands, y/n: Yes
Seeps/Springs, y/n: No
High Groundwater Table, y/n: No
Wellhead Protection or Aquifer
Sensitive Areq y/n: Yes
Pazt 6 -Facility Description - DMention Pond
Total Area Tributary to Facility Including Offsite (acres): 5.36
Total Onsite Area Tributary to Facility (acres: 0.32
Design Impervious Area Tributary to Facility (acresj: 3.61
Design Landscaped Area Tributary [o Facility (acres): 1.75
Design Total 1Yibutary Area to Facility (acres): 5.36
Enter a one (1J for the type of facility:
Wet pond detention 1
Wet pond water surface area, acres 1
Dry pond detention
Underground detention
Infiltration pond
Coalescing plate separator
Centrifuge separator
Other:
Outlet type /Enter a one (1/for each type present)
Fllter
Oil water separator
Single orifice
Mulripie orifice
Weir
Spillway
Pump(s)
Other-Infiltration
Pazt 7 -Release to Groundwater
1
1
Design Perrnlarion Rate to Groundwater (if applicahleJ
1
S
1
1
1
r
r
Appendix 6
Soil Evaluation Report
INSIGHT GEOLOGIC, INC.
S ~.
w
KPFF Engineers
200 Sixth Avenue, Suite 301
1 Lacey, Washington 98509
1
1
Nick Tavlor
August 3Q 2007
Report
Sto~mwater Infiltration Evaluation
Purvis Property
Yelm, Washington
INTRODUCTION
Insight Geologic, Inc. is pleased to provide our report oC stonnwater infiltration services
_ the Purvis property located at 14504 Rerry Valley Road SE in Yelm, Washington. The site
cmprises two parcels of land encompassing approximately 27 acres located west of the west
nd of Berry Valley Road. 'Che site consists of a gently to moderately rolling upland area that is
ege[ated witlt grass and Douglas fir tress. The site slopes moderately down on the eastern
ortion to a terrace above Thompson Creek from xn elevation oC approximately 400 Ceet to
bout 358 feet The location of the subject property is shown in the Vicinity Map, Fignre 1.
SCOPE OF SERVICES
The puipose of our services was to evaluate [he drainage characteristics of soils on the silo
general accordance with the 1992 stonnwater manual as administered by the City of Yelm.
e specific tasks perConnecLareoutlined below.
Conduct a site reconnaissance to evaluate and mark proposed test pit locations at the site.
Provide for clearing needed [o access proposed locations.
Perform utility location at the site to evaluate the presence of subsurface ohstructions.
Excavate exploratory test pits at [he site using a track mounted excavator.
Maintain logs of the soil encountered in the well bore in general accordance with the U.S.
Department of Agriculture textural nomenclature.
Conduct double ring infiltration testing a[ three locations on [he site.
Evaluate the data with respect [o infiltration characteristics for a proposed residential
development.
101$ E<ST 4TH AVENUE, OLYMPIC, WGSHINGTON 98501
PxoxF 360.943-5003
KPFF L'nginccrs
August 3Q 2007
Page 2
FINDINGS
GEOLOGY
Geologic conditions beneath [he site were explored by advancing 12 test pits [o evaluate
subsurface conditions. The approximate locations of [hc test pits are shown in the Site Plan,
Figure 2. The site appears to be underlain by ou[wash sand, gravel and silt deposited on a
weathered glacial till surface. Dense glacial till was encountered in all test pits a[ depths of
between 3 and 8 feet below ground surface. Geologic lags of the test pits are contained in
Attachment A..
GROUNDWATER
Ground water was encountered in three of the test pits (#A, #B and #C) a[ depths of
between 6 and I 1 feet below ground surface. Soil mottling which may be indicative of seasonal
high ground water conditions was observed in test pits A, B, C, F and I at depths between 2.0
and 8.0 feet below ground surface.
INFILTRATION RATES
Double-ring infiltration tests were conducted at three locations (1$ 21 and 22) in general
accordance with the 1992 llrainage Manual. The infiltration tests were conducted after an
initial soaking period. The locations of the infiltration tests are shown in the Site Plan, Figure 2.
Test results indicate in81[mtion rates of 19.5, 19.7 and 343 inches per hour a[ [he three
locations InFltra[ion testing results are contained in Attachment B ,
CONCLUSIONS
. We have performed an evaluation of soil conditions a[ the site to assess suitability for
stonnwater in [iluation in general accordance with the 1992 Ecology 5[ormwater Manual
administered by the City of Yelm. Based on the results of our study, it appears that suitable
soils for s[ormwater infiltration are present on the property.
The project site is underlain by sand, gravel and silt deposited as-glacial ou[wash and.
ablation till during the waning stages of the most recent glacial period. These loose to
moderately dense soils appear ro be underlain by dense glacial till. Ground water was
encountered in test pits A, B and C located in [he southeastern portion of the site. Indications of
seasonal high ground water in [he form of soil mottling were observed in [es[ pits A, B, C, F and
1.
Three falling-head infiltration tests were conducted in the southwest portion of the site. The
results of the infiltration testing indicat¢ that infiltration rates of 19.5, 19.7 and 34.3 inches per
hour were achieved during the testing.
INSIGHT GEOLOGIC, IN<
KPFF linginccrs
Augur[ 30, 2007
Page 3
LIMITATIONS
This report has been prepared for use by KPFF Engineers and their client. Insight Geologic
has performed our site screening evaluation far the parcel of property described above in
general accordance with the 1992 Department of Ecology S[onnwater Manual.
Within the limitations of scope, schedule and budge[, our services have been executed in
accordance witlr the generally accepted hydrogeologic science practices in this area a[ [he time
[his report was prepared. No warranty or other conditions express or implied, should be
understood.
Please refer to the Attachmem titled "Report Limitations and Guidelines for Use" for
additional information pertaining [o use of [his report.
.or
We trust this report meets your torten( requirements. Please contact us if you have
questions regarding our study, or if we may provide additional information. We appreciate the
opportunity to be a(service to you on this project.
°°~~q Respectfully submitted,
~O
~ INSIGHT GEOLOGIC, INC.
818 \6~ L'/;~
d GOO~o W'h'am albeit, L.G., L.HG.
Principal
E. Halbert
Attachments
NSIGMT GEOLOGIC, INC.
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Scars: Mrpech CD, Yefm, Wodingmn ZS mirmre quadrangle, 1955, pMmrevveL
1994
NORTH
Approx imate Scale 1 inch = 4,000 feet
VICINITY MAP
INSIGHT GEOLOGIC
INC.
,
~~~ FIGURE 1
NORTH
Approximate Scale 1 inch = 200 Feet
Q TEST PIT LOCATION
® INFILTRATION TEST
LOCATION
.~~~~'"'~ SITE PLAN
INSIGHT GEOLOGIC, INC. Test Pit Locations
~:._- FIGURE 2
1
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1
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ATTACHMENT A
TEST PIT SOIL LOGS
SOILS LOG
' Pervis
Completed By :William Parnell, PE
PE Project # :07121
i "
"
#A 0
- 6 Dark Brown Silt Loam
' 6"- 30"
30"- 48" Brown Silt Loam
Gray 8 Brown Silt, mottles of 30"+
48"- 76" Dark Gray Extremely Gravelly Santly Loam -Till -
76"-132" Dark Gray Extremely Gravelly Sandy Loam, water bearing -weak fractured Till
132"-174" Gray Very Gravelly Sandy Loam-Till
174"-186" Gray Very Gravelly Coarse Sandy Loam-Till
" 186"-204" Gray Very Gravelly Coarse Sandy Loam-Till
#B 0"- 8" ~ Dark Brown Silt Loam
8"- 28" Brown Silt Loam
28"- 44" Gray & Brown Silt Loam, light mottles at 32"+, heavy mottles at 32"114"
44"- 90" Gray Silt
90"-132" Gray Very Gravelly Loamy Fine Sand-Till
132"-144" Gray Very Gravelly Sand, water bearing-weak fractured TIII
' 144"-186" Gray Very Gravelly Loamy Fine Santl-Till
-#C 0"- 6" Dark Brown Silt Loam
' 6"- 24"
24"- 40" Brown SiltLOam -
Gmy 8 Brown Silt Loam, light mottles at 24"-32, heavy mottles at 32"-40"
40"- 82" Dark Gray Silt
82"- 98" drown very coooley Panay Loam-r w
- 98"-132" Gray Very Gravelly Loamy Sand, weak Till
132"-180" Gray Very Gravelly Loamy Fine Sand -water hearing- weak Till
- #D 0"- 12" Brown Gravelly Loam ~ - '
' 12"- 44" Dark Gray Extremely Gravelly Coarse Sand
44"--89" Dark Gray Very Gravelly Loam-Till
89"-120" Darx moray very oraveuy Loam-I m
"
"
#E 0
- 8 Dark Brown Loam
6"- 26" Brown Gravelly Loam
26"- 36" Olive Brawn Gravelly Loam
36"-114" Gray ExtremelyGravelly Loamy Sand-Till
114"-132" Dark Gray Very Gravelly Loam -Till ,
' #F 0"- 10" Brown Gravelly Sandy Loam '
10"- 44" Brown Extremely Cobbley Sandy Loam
44"- 56" Retldish Gray Extremely Gravelly Coarse Sand-mottletl
56"- 60" Dark Gray Extremely Gravelly Loam-Till
' 60"- 84" Gray Fine Sand-Very Dense, Weak sill
84"-112" Gray Gravelly Loamy Very Fine Sand-Till
#G 0"- 39" Brown Very Cobbley Santly Loam
7
39"- 109" Gray Extremely Gravelly & Cohbleytoamy Fine Sand-Till
#H
#I
ifJ
ffiK
#L
0"- 36" Brown Gravelly Sandy Loam
36"- 43" Gray Silt -
43"-120" Grey Extremely Gravelly Loamy Fine Sand-Till
0"- 30" Brown Gravelly Loam
30"- 52" Gray Extremely Gravelly Coarse Sand-slightly compacted
52"- 54" Gray Extremely Gravelly Coarse Sand-Till
54"- 96" Gray Extremely Gravelly &Cobbley Coarse Santl
96"-120" Gray Extremely Gravelly Coarse Sand with thick silt binder, mottles at 94"-100"
0"- 48" Brown Very Gravelly Loam
48"- 66" Gray Very Gravelly Loamy Sand-Weatheretl Till, extremely fragmented
66"-110" Gray very Gravelly Loamy Fine Santl-Till
0"- 36" Brown Very Gravelly Loam
36"- 98" Gray Extremely Gravelly &Cobbley Sandy Loam-Till
0"- 36" Brown Very Gravelly Loarn
36"- 44" Brownish Gray Very Gravelly Sandy Loam -
44"-12P' Gray Extremely Gravelly Loamy Sand-fractured Till with slightly-moderately dense pockets
2
i
1
ATTACHMENT B
INFILTRATION TEST REPORTS
1
Falling Head Percolation Test
Purvis
Test Date :6/26/2007
Completed 8y : William Parnell, P.E.
' PE Joh ~ #07171
Test Hole # 19 (test completed @ 4" elow existing ground su ace
Start Sto Ela sed Time Total Dro Infiltration Rate
(H: M'S") (H: M'S") (H: M'S") (Inches) (In/Hr)
D' 00" 6' 30" 6' 30" 6
6' 45" 14' 00" T 15". 6
Soaking Period
1:35' 00" 1: 50' 30" ~ 15' 30" 6
Soaking Period
2: 5T 45" 3: 13' 00" 15' 15" 6
Soakin Period
3: 30' 45" ~ 3: 46' 30" 15' 45" - 6
3: 4T 15" 4[ 03' 15" 16' 00" 6
4: 04' 15" 4: 20' 15" 16' 00" 6
4: 21' 00" ~ 4: 38' 00" 1 T 00" 6
4: 38' 45" 4: 55' 45" 1 T 00" 6
4: 56' 15" 5: 13' 45" 1 T 30" ~ 6
St 14' 30" 5: 32' 15" 1T 30" 6
5: 33' 45" 5: 51' 45" 18' 00" 6
5: 52' 45" 6; 11' 00" - 18' 15" 6 19.7
6: 11' 45" - 6: 29' 45" 18' 00" 6
8: 30' 30" 6: 48' 30" 18' 00" 6
Note: Test completed wdh a 6" solitl pvc pipe to prevent sidewall collapse-
Falling Head Percolation Test
Purvis
Test Date :6/26/2007 -
Completed By : William Parnell, P.E.
PE Job :#07121
Tesl o e 21 test compete @ 2 "below existing ground su ace
Start Sto Ela sed Time Total Dro Infiltration Rafe
(H: M'S") (H: M'S") (H: M'S") (Inches) (In/Hr)
2T 00" 33' 15" 6' 15" 6
33' 30" 40' 30" T 00" 6 '
Soaking Period
1:30' 45" 1:38' 30" T 45" 6
- Soakin Period
2: 56' 00" 3: 04' 30" 8' 30" 6
Soakin Period
3: 41' 15" 3: 50' 00" 6' 45" 6
4: 06' 00" 4: 15' 00" 9' 00" 6
4: 15' 45" 4: 25' 00" 9' 15" 6
4: 2T 00" 4: 36' 00" ~ 9' 00" 6
4: 40' 30" 4: 49' 45" ~ 9' 15" 6
4: 50' 30" 5: 00' 00" 9' 30" - B
5: 00' 45" 5: 10' 45" 10' 00" 6 '
5: 11' 30" 5: 21' 15" 9' 45" 6
5: 22' 00" 5: 31' 45" 9' 45" 6
5: 36' 45" 5: 46' 45" 10' 00" 6
5: 4T 45" 5: 5T 45" 10' 00" 6
5: 59' 45" 6: 10' 15" 10' 30" - 6
6: 11' 00" 6: 21' 30" 10' 30" 6
6: 22' 30" ~ 6: 32' 30" 70' 30" 6 34.3
rvo[e: I es[ completetl wrtn a b" solltl pvc pipe to prevent sidewall collapse.
Falling Head Percolation Test
Purvis
Test Date : 6/26/2007
Completed By : William Parnell, P.E.
PE .lab :#07121
est Hole # 2 test completed @ 24" below existing ground surface )
Start Sto Ela sed Time Total Dro Infiltration Rate
(H: M'S") (H: M'S") (H: M'S") (Inches) (In/Hr)
56' 00" 1:04' 00" 8' 00" 6
1:04' 15" 1: 13' 45" 9' 30" 6
1: 14' 00" 1:25' 30" 11' 30" 6
Soaking Pedod
2: 30' 45" 2: 44' 00" 13' 15" 6
Soakin Period
3: 38' 45" 3: 53' 30" 14' 45" ~ 6
3: 54' 15" 4: 10' 00" 15' 45" 6
4: 12' 00" 4: 29' 00" 1T 00" 6
4: 29' 30" 4: 47' 00" 17' 30" ~ 6
4: 47' 45" 5: OS' 45" 18' 00" 6 .
5: O6' 30" 5: 25' 00" 18' 30" 6
5:25' 30" ~ 5: 44' 00" 18' 30" 6
5: 44' 30" 6: 03' 00" 18' 30" 6
6: 03' 45". 6: 22' 15" 18' 30" 6 19.5
Note: Test completetl with a 6" solitl pvc pipe to prevent sitlewall collapse.
1
ATTACHMENT C
REPORT LIMITATIONS AND GUIDELINES FOR USE
1
1
' ATTACHMENT B
REPORT LIMITATIONS AND GUIDELINES FOR USE'
'I'bis attachment provides information to help you manage your risks with respect to the use
of [his report.
GEOTECHNICAL SERVICES ARE PERFORMED FOR SPECIFIC PURPOSES,
PERSONS AND PROJECTS
This report has been prepared for the exclusive use of our client and ffieir authorized agents.
This report may be made avnilablc to regulatory agencies for review. 'Phis report is not intended
for use by others, and the information contained herein is no[ applicable [o other sites.
' Insight Geologic Inc. structures our services to meet the specific needs of our clients. Por
example, a gcotechnical or geologic study conducted for a civil engineer or architect may not
Culfill the needs of a construction contractor or even another civil engineer or architect that are
' involved in the same project. Because each geo[echnical or geologic study is unique, each
geotechnical engineering or geologic report is unique, prepared solely for Ute specific clicttt and
project site. Our report is prepared for [he exclusive use of our Client. No other party may rely
on the product of our servccs unless we agree in advance to such reliance in writing. 'Chis is to
provide our firm with reasonable protection against open-ended liability claims by third parties
with whom there would otherwise be no contractual limits [o their actions. W i[hin the limitations
of scope, schedule and budget, our services have been executed in accordance with our
' Agreement with the Clieut and generally accepted geotechnic:d practices in this area at [he time
[his report was prepared.. This report should no[ be applied for any purpose or project except the
one originally contemplated.
A GEOTECHNICAL ENGINEERING OR GEOLOGIC REPORT IS BASED ON A
UNIQUE SET OF PROJECT-SPECIFIC FACTORS
Insight Geologic, Inc. considered a nwnber of unique, project-specific factors when
establishing the scope of services for [Iris project and report. Unless Insight Geologic specifically
:ndicales o[henvise, do not rely on this report if it was:
not prepared for you,
• not prepared for your project,
1 .
• not prepared for the specific site explored, or
• completed before important project changes were made.
For example, changes [hat can affect the applicability of this report include those that affecC
•
the function of the proposed structure;
• - eleva[ioq configuration, location, orientation or weight of the proposed sirucmre;
- • composition of the design team; or
• ~ project ownership.
~ Developed based on material provided by ASPG, Professional Firms Practicing N the Geoscicnces; wrvw.asfe org.
LINIT4TIOH5 NSILNr GEOLOGIC, INC.
If important changes are made after [he date of Ihis report, Insight Geologic should be given
the opportunity to review our interpretations and recommendations and provide written
modifications or confirmation, as appropriate.
SUBSURFACE CONDITIONS CAN CHANGE ,
Phis geolechnieal or geologic report is based on conditions that existed at [he time the study
was performed. The findings and conclusions oC this report may be affected by the passage of
lime, by manmade events such as construction on or adjacent to the site, or by natural events such ~'I
as floods, earthquakes, slope instability or ground water Ouctuations. Always contact Insight i
Geologic before applying a report [b determine if i[ remains applicable ~i
MOST GEOTECHNICAL AND GEOLOGIC FINDINGS ARE PROFESSIONAL ~'
OPINIONS
Our interpretations of subsurface conditions arc based on field observations from widely 1
spaced sampling locations al the site. Site exploration identifies subsurface conditions only at
[hose points where subsurface tests are conducted or samples are taken. Insight Geologic '
reviewed feld and laboratory data and [hen applied our professional judgment to render an
opinion about subsurface conditions throughout [he site. Actual subsurface conditions may differ,
sometimes, significantly, from those indicated in Ihis report. Our report, conclusions and
interpretations should not be constmed as a warranty o(the subsurface conditions.
GEOTECHNICAL ENGINEERING REPORT RECOMMENDATIONS ARE NOT
FINAL
' Do not over-rely on [he preliminary construction recommendations included in this report.
These recommendations are not final, because they were developed principally from Insight
Geologies professional judgment and opinion. Insight Geologies recommendations can be
finalired only by observing actual subsurface conditions revealed during constmction. Insight
Geologic cannot assume responsibility or liability for this report's recommendations if we do not
perform construction observation .
Sufficient monitoring, testing and consultation by Insight Geologic should be provided during
construction to confirm [ha[ the conditions encountered arc consistent with those indicated by the
explorations, to provide recommendations for design changes should [he conditions revealed
during the work differ from those anlicipamd, and kt evaluate whether or not earthwork activities
are completed in accordance with our recommendations. Retaining Insight Geologic (or
construction observation for this project is [he most effective method of managing the risks
associated with unanticipated conditions.
Llnlin TIO NS IN514XT GEOLOGIC, IN[.
1
A GEOTECHNICAL ENGINEERING OR GEOLOGIC REPORT COULD BE
SUBJECT TO MISINTERPRETATION
Misinterpretation of this report by other design team members can resuh in costly problems.
' You could lower that risk by having Insight Geologic confer with appropriate members of tho
' design team after submitting the report. Also retain Insight Geologic to review pertinent elements
' of the design team's plans and specifications. Contractors can also misinterpret a geotechnical
engineering or geologic report. Reduce that risk by having Insight Geologic participate in pre-bid
and pre~construciion wnCerences, and by providing constructiomobservation.
DO NOT REDRAW THE EXPLORATION LOGS
Geo[echnical engineers and geologists prepare final boring and testing logs based upon their
- interpretation of field logs and laboratory data. To present errors or omissions, the logs included
in a geotechnical engineering orgeologic report should never be redrawn for inclusion in
architeemral or other design drawings. Only photographic or electronic reproduction is
acceptablo, but recogmze that separating logs From [tic report can elevate risk.-
' GIVE CONTRACTORS A COMPLETE REPORT AND GUIDANCE
Some owners and design professionals believe they can make contractors liable Cor
unanticipated subsurface conditions by limiting what they provide for bid preparation. To help
prevent costly problems, give contractors the complete geotechnical engineering or geologic
report, but preface it with a clearly written letter of transmittal. In [ha[ letter, advise contractors
' [hat the report was no[ prepared for purposes of bid development and that the report's accuracy is
limited; encourage them [o confer with Insight Geologic and/or to conduct additional study to
' obtain the specific types of information (hey need or prefer. A pre-bid conference can also be
valuable. 6c sure contractors have sufficient time to perform additional study. Only then might
an owner be in a position [o give contractors the best information available, while requiring them
to at leas[ share the financial responsibilities stemming from unan[ieipatetl conditions. further, a
- oomingency for unanticipated conditions should be included in your project budget and schedule.
CONTRACTORS ARE RESPONSIBLE FOR SITE SAFETY ON THEIR OWN
CONSTRUCTION PROJECTS
' Our geotechnical rewmmenda[ions arc not intended to direct the contractor's procedures,
methods, schedule or management oC the work site. 'Che contractor is solely responsible forjob
site safety and Cor managing construction operations to minimize risks to oo-si[e personnel and to
' adjacent properties.
' READ THESE PROVISIONS CLOSELY
Some clients, design professionals and contractors may not recognize that the geoscicnce
practices (geotechnical engineering or geology) arc Car less exacb than other enginoering and
natural science disciplines. This lack of understanding can create unrealistic expectations that
L IM ITAiIGNS INSIGHT GEOLOGIC INC.
cou4d lead to disappoimments, claims and disputes. Insight Geologic includes these explanatory
"limitations" provisions in our reports [o help reduce such risks. Please confer with Insight
Geologic if you are unclear how these "Report Limitations and Guidelines Cor Use" apply [o your
project or site.
GEOTECHNICAL, GEOLOGIC AND ENVIRONMENTAL REPORTS SHOULD NOT
BE INTERCHANGED
The equipment, techniques and personnel used to perform an enviromnemal study differ
significantly from those used to perform a geotechnical or geologic study and vice versa. For [ha[
rcasorg a geotechnical engineering or geologic report does no[ usually relate any environnental
findings, conclusions or recommendations; e.g, about the likelihood of encountering
underground storage tanks or regulated contaminants. Similarly, environmental reports ate not
used to address geotechnical or geologic concerns regarding a specific project.
Llnli<ilorvs INSIGni GEa LaGlc, INC.
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Appendix 7
Maintenance Agreement
' RESIDENTIAL AGREEMENT TO MAINTAIN
STORM WATER FACILITIES AND IMPLEMENT A POLUTION SOURCE PLAN
' BY AND BETWEEN
TAHOMA TERRA LLC
THEIR HEIRS, SUCCESSORS, OR ASSIGNS
(HEREINAFTER "DEVELOPER")
AND
CITY OF YELM
(HEREINAFTER "CITY")
' The upkeep and maintenance of stormwater facilities and the implementation of
pollution source control best management practices (BMPs) is essential to the
protection of water resources. The DEVELOPER is expected to conduct business in a
' manner that promotes environmental protection. This Agreement contains specific
provisions with respect to maintenance of stormwater facilities and use of pollution
source control BMPs.
LEGAL DESCRIPTION:
Parcels in the City of Yelm No. 21734310100, 21724340100 In Thurston County
' Washington
Whereas, the DEVELOPER has constructed improvements, including but not
limited to, buildings, pavement, and stormwater facilities on the property described
above. In order to further the goals of the CITY to ensure the protection and
enhancement of water resources, the CITY andthe DEVELOPER hereby enters into
' this Agreement. The responsibilities of each party to this Agreement are identified
below.
The DEVELOPER shall:
(1) Implement the stormwater facility maintenance program included herein as Attachment
..A..
(2) Implement the pollution source control program included herein as Attachment "B".
' (3) Maintain a record (in the form of a logbook) of steps taken to implement the programs
referenced in (1) above. The logbook shall be available for inspection by appointment
with DEVELOPER. The logbook shall catalog the action taken, who took it, when it was
t done, how it was done, and any problems encountered or follow-on actions
recommended. Maintenance items ("problems") listed in Attachment "A" shall be
inspected as specified in the attached instructions or more often if necessary. The
' DEVELOPER is encouraged to photocopy the individual checklists in Attachment "A"
and use them to complete its inspections. These completed checklists would then, in
combination, comprise the log book.
II
(4) Submit an annual report to the CITY regarding implementation of the programs
referenced in (1)) above. The report must be submitted on or before May 15 of each
calendar year and shall contain, at a minimum, the following:
(a) Name, address, and telephone number of the businesses, the persons, or the
firms responsible for plan implementation, and the person completing the report.
(b) Time period covered by the report.
(c) A chronological summary of activities conducted to implement the programs
referenced in (1) above. A photocopy of the applicable sections of the log book,
with any additional explanation needed, shall normally suffice. Far any activities
conducted by paid parties, include a copy of the invoice for services.
(d) An outline of planned activities for the next year.
(5) I execute the following periodic major maintance on the subdivision's stormwater
facilities: Sediment removal from the bio-infiltration swales, and the infiltration galleries.
The CITY shall:
(1) Provide technical assistance to the DEVELOPER in support of its operation and
maintenance activities conducted pursuant to its maintenance and source control
programs. Said assistance shall be provided upon request and as CITY time and
resources permit.
(2) Review the annual report and conduct a minimum of one (1) site visit per year to discuss
performance and problems with the DEVELOPER.
REMEDIES:
(1) If the CITY determines that maintenance or repair work is required to be done to the
storm water facilities located on the owner/homeowners association property, the CITY
shall give owner/association of the property notice of the specifc maintenance and/or
repair required. The CITY shall set a reasonable time in which such work is to be
completed by persons who were given notice. If the above required maintenance and/or
repair is not completed within the time set by the CITY, written notice will be sent to
persons who were given notice stating the CITY's intention to perform such
maintenance and bill owner/homeowners association for all incurred expenses. The
CITY may also revoke stormwater utility rate credits if required maintenance is not
performed.
(2) If at any time the CITY determines that the existing system creates any imminent threat
to public health or welfare, the CITY may take immediate measures to remedy said
threat. However the City shall also take reasonable steps to immediately notify either the
property owner or the person in control of said property of such imminent threat in order
to enable such owner or person in control to take such immediate measures either
independently or in cooperation with the City.
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(3) The DEVELOPER grant limited authority to the CITY for access to any and all
stormwater system features for the purpose of performing maintenance or repair or
inspection pursuant to the terms of this agreement.
(4) The DEVELOPER shall assume responsibility for the cost of maintenance and repairs to
the stormwater facility. Such responsibility shall includes reimbursement to the CITY
within 30 days of receipt of an invoice for work performed by the City in maintenance or
repairing such facility pursuant to the terms of this agreement. Overdue payments will
require payment of interest at the current legal rate for liquidated judgments. The City
shall have a lien for all unpaid charges together with interest. However, notice of such
lien shall not be filed by the CITY for a period of 60 days following mailing the invoice for
the charges due. During such 60 days, the property owner or other person or agent in
control of the property shall have aright to appeal such charges to the CITY'S Land Use
Hearings Examiner for a final decision. Such appeal may challenge either the charges
rendered for maintenance or repairs performed by the CITY or the amount of the
charges rendered for such maintenance or repair. Notice of such lien shall not be filled
during the pendency of such appeal until foal decision is rendered by the Land Use
Hearings Examiner. The lien shall be foreclosed in the same manner specified by state
statute for closure of a mechanic's or materialman's lien. In any legal action to foreclose
such lien or otherwise collect such charges, the prevailing party shall be entitled to an
award for its attorney fees and cost incurred.
This Agreement is intended to protect the value and desirability of the real property
described above and to beneft all the citizens of the CITY. It shall run with the land and
be binding on all parties having or acquiring any right, title, or interest, or any part
thereof, of real property. They shall insure to the benefit of each present or future
successor in interest of said property or any part thereof, or interest therein, and to the
benefit of all citizens of the CITY.
IN WHITNESS WHEREOF, this instrument has been executed
Grantor
i
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Grantor
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STATE OF WASHINGTON)
) ss
COUNTY OF THURSTON )
I certify that I know or have satisfactory evidence
(is/are) the person(s) who appeared
before me and said person(s) acknowledged that
(he/she/they) signed this agreement and
acknowledged it to be (his/her/their) free
and voluntary act for the uses and purposes mentioned in the instrument.
Given under my hand and official seal this day of ,
200
Notary Public in and for the
State of Washington, residing
STATE OF WASHINGTON )
My commission
)ss
COUNTY OF THURSTON )
On this day and year above personally appeared before me,
,to be
known to be the Public Works Director of the City of Lacey. A Municipal Corporation,
who executed the foregoing instrument and acknowledge the said instrument to be the
free and voluntary act and deed of said Municipal Corporation for the uses and
purposes therein mentioned and on oath states he is authorized to execute the said
instrument.
200
Given under my hand and official seal this day of ,
APPROVED AS TO FORM:
Notary Public in and for the
State of Washington, residing
My commission
ATTACHMENT "A": MAINTENANCE PROGRAM
COVER SHEET
' Inspection Period:
Number of Sheets Attached:
' Date Inspected:
Name of Inspector'
'
Inspector
s Signature:
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' ATTACHMENT "A"
' Maintenance Checklist for Conveyance Systems (Pipes and Swales)
Frcquenry Drainage System Req' Roblem Conditions to Check For Conditions That Should
Feature d Edst
M.S. Pipes Sediment & Accumulated sediment tlra[ Ape cleaned of all
debris etceeds 20% of the diameter sediment end debris.
of tire i e.
M J Vegetation Vegetation Nat reduces &ee All vegemtiov removed so
movement of water through water cows freely.
i es.
A Damaged Protective mating is Ape repaired or replaced.
(rusted, bent damaged, rust is causing
or crushed) more than 50%deterioratlan
to env art of i e.
M J My dent that signJCantly Pipe repaired or replaced.
impedes tlow (i.e., decreases
the cross sectlon area of pipe
b more then 20°/ .
M Pipe has major cracks or Rpe repared or replaced.
teazs allowing groundwater
leaks e.
M.S. Swales Trash & Dumping of yard wastes Remove trash end debris
debris such as grass clippings and end dispose as
branches into swele. prescribed by County
Unsightly accumulation of Waste Management
non-degradable materials Section.
such as glass, plastlc, metal,
foam and coated a er.
M Sediment Accumulated sediment that Swale deancd of au
buildup exceeds 20°/ o(the design sediment and debris so
depth. Wet it matches design.
M Vegetaton Grass cover is sparse and Aere[e soils end reseed
not growivg weedy or areas are end mWCh bare areas.
or overgrown overgrown with woody Maintain grass height at
vegetatlan. a minimum o(6" for best
stormwetar Vea[mrnt.
Remove woody growN,
recontour end reseed es
neccs
M,S J Erosion See ponds checklist See ponds checklist
damage m
slo es
M Conversion Swale has been filled in or If possible, speak with
by blocked by shed, woodpile, homeDEVELOPER and
homeDEVEL shrubbery, etc, request that swale area
OPER to be restored. Contact City
incompatible to report problem if no[
use rectified valuntanl .
A J Swale does Water stands in swele or pow A survey may be needed
not drain velodty is very slow. to check grades. Grfldes
Stagnetlon occurs. need to be iv 1 % range S
possible. If made is less
than 1%, underdrains
ma need to be installed.
i(you are unsure whether a problem cysts, please covtatt the CITY and ask for technical assistance.
Comments:
Key: A ~ Annual March or April preferred)
M -Monthly (see schedule
Q - Qnerterly
5 - Alter m jor storms
ATTACHMENT "A"
Maintenance Checklist for Catch Basins and Inlets
Feature Drainage Req'd Problem Conditions ro Check For Conditions Tha[ Shou3d
System Feature Exist
M.S. General J Trnsh, debris Trash or debris m lion( of No trash or debris located
end xdiment N Ne catch basin opening is immediately N front oC
or ov basin blocking capacity by more catch basin opening.
Nan ]0°/. Grate is kept clean and
allows water [o enter.
M J Setlimevt or debris din Ne No xdunent or tlebris m
basing Nat exceetls 1/9 Ne Nc catch basin. Ce[ch
depN from Ne bottom of basin is dug out and
basin to invert of the lowest clean.
pipe into or out of Ne ,
basin.
M.S. J 'Nash or debris in any inlet Inlet and outlet pipes free
or pipe blocking more Nan of trash or debris.
I /3 of iPS hcigh[.
M J Strvetural Comer of frame extends Frame is even wiN curb.
damage to more Nan 3/4" pest curb
frame and/or face into Ne stmt lU
top slab epplicable~.
M J Top slab has holes larger Top slab is Bee of holes
Nan 2 inches or troths and aacks.
wider Nan 1 /4" (intent is [o
make sure ell material is
running into Ne basing.
M J Frame not sitting flush on Frame is sitting flush on
top slab, i. e., separation of top slab.
more Nan 3/q" of Ne frame
from Ne top slab.
p J Cracks m basin Cracks wider Non 1 /2" and Basin replaced or
walls/bottom longer Nan 3', any evidence repaved to design
of soil particles entering standards. Contact a
catch basin through cracks protessiona] engineer (or
or maintenance person evaluation.
judges Na[ structure is
unsound.
p J Crecks wider Nan I/2" and No cracks more Nan I/4"
' longer Nan 1' at Ne join[ of wide at Ne joint of
any inlet/outlet pipe or any inlet/outlet pipe.
evidence of soil particles
entering catch bnsN
Uuough cracks.
p J Settlement/mis Basin has xttled more Nan Basin replaced or
-alignment I" or has rotated more Nan repaired to design
2" out of alignment. standards. Contact e
professional engineer for
evaluation.
Maintenance Checklist for Catch Basins and Inlets (Continued)
M.S. d Fire he and or Resence o[chemirals such No cofoq odor or sludge.
other pollution as natural gas, oil and Basin is dug out and
gasoline. Obnmdous catoq dean.
odor or sludge noted.
M.S. J Outlet pipe is Vegetation or roots growivg No vegetatlon or root
clogged with m ude[/outlet pipe joints growth present.
vegetatlon Nat is more Nan 6" tall and
less Nan 6" apart.
If you ere unsure whether a problem adsts, please mntact Ne CIr1Y and ask far [echrdcal assistanm.
Comments:
Key: A - Armual (March or April preferred)
M = MonNly ]sec schedule)
' Q =Quarterly
S -After major storms
ATTACHMENT"A"
Maintenance Checklist Cor Grounds (Landscaping)
Frequrnty Drainage Req' Problem Conditions to Check For Condidons That Should
System d Eris[
Feature
M General J Weeds Weeds growing N more Weeds prcxn[ m less
(nonpoisonous) Nan 2fF/of NC Than S%of the
landxaped area (Veer landscaped area.
end shrubs oNyl.
M d Safety hazazd Any prexnce of poison try No poisonous vegetation
or other poisonous or inxc[ nests prexn[ m
vegetaion or inxc[ nests. landxaped area.
M.S. J Trash & debris Dumpivg ofyard wastes Remove Vash and debris
buildup in open such as grass etippings and dispox as prexribed
space and branches. Unsightly by City Waste
accumulation of non- Management Section.
degradable materials such
as glass, pLtstlc, metal,
foam and coated paper.
M J Missing or Any detect m Ne Cence or Fence is mended or
broken screen N¢t permits easy shrubs replaced to form a
parts/dead entry to a facility. solid bartier to entry.
shrubbery
M.S. J Erosion Erasion has resulted in an Replace soil under fence
opening under o levee so Nat no operrhrg
Ne[ allows entry by exceetls 4" N height.
people or pets. Causes of erosion
identified end steps taken
to slow down end/or
spread out Ne water.
Eroded areas ere filled,
contoured, end xeded.
M J Unruly Shrubbery is growing out Shrubbery is trimmed and
vegemton of control or is iNested weeded to provide
wiN weeds. appealing aesNetics. Do
not use chemicals to
control weeds.
A Trees end d Demege Limbs ar parts of trees ar Trim trees/shrubs to
shrubs shrubs Na[ are split or restore shape. Replace
broken which elfec[ more Vees/shrubs wiN xvere.
Nan 25%oC Ne total damage.
foliage v(Ne tree or
shrub.
M J Trees or shrubs Na[ have Replant tree, inspecting
been blown down or (or injury to stem or roots.
(mocked oven Replace U xverely
damaged.
A d Trees or shrubs which ere Place stakes and rvbber-
no[ adetjuately supported coated ties around young
ar ere le¢ning over, Vees/shrubs for support
causing exposure of Ne
roots.
If you are unsure whether a problem mds[s, pleax contact Ne CITY and ask (or technical assistance.
Comments:
Key: A =Annual )March or April preferred)
M' Monthly (see scheduie~
Q ~ Quarterly
S = Mer major storms
ATTACHMENT "A"
Maintenance Checklist for Pervious Corrcrete
Frequency Drainage Regtl Problem Condidona to Check Por end Condition Tbat
Sysmm Fee[ure Moan m Take Shoultl Exia[
M, 5 Pervious J Sediment Ensure that the pervious Sediment is removed
Concrete buildup on Crete surface is (rte of and/or pevcmmt is
surface sediment cleaned ao Net
ir~fltredon works
cenrdmg [o design
M, 3 Pernoua J Sediment Ensure Net the contributing Sediment is removed
Concrete buiWUp an and adjacent landxape areas mdJor pavement is
surface a amb'1'+M end mowed, with cleaned ao Nat
clippings removN infil4etion works
caning m oasis"
0 Times/Year Pervious J Sediment Vacuum sweep porous conerte Sediment ie removed
Min. Concrete buJdup on surface (ogowcd by high and/or pavement is
surface pmsaurt hoeing to kttp ports ckencd ao Nat
free of sediment ir~fl4adon works
ecnrding m design
Upon Nailure Pernoua J Spat clogging Prolonged spat pudtlling on Nomminor temp.
Concrete pavement surface. DAIM6 ponding. Inldtmtion
mch holes Nrough Ne ~orke according to
pavement every taw fact. dmign
If you are unsure whether a problem e.ists, please contact tl[e CITY antl ask for technical assistance.
Comments:
Key: A -Annual March or April prelerred)
M ~ MonNly see schedule)
Q ~ Quarterly
S ~ After major storms
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Appendix 8
Erosion Control and Storm Drainage Plan
OWNER/DEVELOPER: CIVIL ENGINEER
rAHq.Aq TERRA. LLC KPFF CONSULTING fN41N¢¢RS
9200 6TH qV[ SE SUrtE 301 42W 6TH. AVE. SG SURE 3C9
IACfY. WA 98503 lAC¢Y. WA 98503
iftl(360)g93-6W2 TEL: (360)292-]230
FA%, 13601493-29]6 FA%: (360) 292-]231
COMALT: WUG BLWM COMALT: NILKiAY1.OR
SURVEYOR:
I(P1f CCN5VLi1NG fNCJNffA9
42~ 6Tt1 qvf. 9E SUrtf A9
lAC1Y. WA 98503
-
TEL: (3601292-]230
fP%:(360)292-]231 '
COMACI: TOM SWIFT. PLS
SHEET INDEX
G -
am
n
....._.
wEruslD BurfER
eouuDARr uNe
LfMERfINE
RIGNT-0F-WAY
' IRIIM fASEMfM
CURB t GUTTER
BLOCK WALL
wgreR uNE
SANITARY SM'fft UNE
' STORM GRAIN VNf
wATfR S[RNCP CONNEG11pN
SEWER SERNLE CONNECLION
STORM LINE ftOW ARROW
t sw. awc. svy /
w Suw yra i:w. z..~ ty:.. '
e
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w ~
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~ ANO OfTfMION POND
..
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>w ~ ~. 4
- .` '
~ 2
OPEN SPacE
+~ s
N~ ~ ~ 2
/
/
3861 387 1388 ~ 389
SECTION 23, TOWNSHIP 17 NORTH, RANGE 1 EAST, W.M.
THURSTON COUNTY. WASHINGTON
LEGEND
- - - - - 5TORM GATCH MSIN ~
WAT¢R/SEWER VNf GATE VALVE „
.. FIR£nYDAANF ~
- VGni POI£ ~,y
UWpSGPING TREE yy..
"~'Q
ROADWAY rW[(9 AREA CLWO fvw~
\
-
GRADING SIDPf ARROW 2
~
• PROPOSED MAIOR COMWRVNP v
sRn PROPOSED MINOR LOMWRVNf an
ID GY9PNG M410R NNTOUR lIN¢ ,.,
O
VICINITY MAP
80UNDARV NOTE:
N PP - EXISTING MINOR CONTOUR VNf ,f ~ 4
' ALL WUNDARY INPORMAi10N SHIXVN HfREW 15 PER
o pa PRIVACY PENCE -inUR9TON COUN1Y qA RECORDED UND¢R AUDITORS PFP mf ~' '
N0. 3302942. y, k'
~ CHgIN-0NK FENCE -%---N y --1--- - a 8
NOTE: ~I sde,,, S
VIEf~D ~~ ~ iHFS¢PIANS HAV2 Bf£N REVIEWED IN ALLOP.DANCf W1TH I N`
IIILLL~~~f~~ LHPCIN OF TfUA pfVf UJPM¢M GVIDfVNES ANO gPPVLABI£ 1 _
OEV[IOPMfM R£GUNTIONS. IN iHf [VfM OPACONPLILr O o Bo
OROMISSION THE pEVELOPMfM GUIpfLINE50R APPUUBIE rv h
ffNCE GATE ® oq '~
DWELOPMEM GUIDEVNf SHALL APPd. Xµf
PAVEp fALIUIY ACC65 W _~ ~
~Esy„_ 6'PRIVACY FfNLf (I1P) c~~'~
~~ ~ FUTURE DEVELOPMENT `~-----~~ ~°~
«.q, IXISTING STRIKTURE TO Bf DEMW SHED a o ~
o~ 7 ~,~
IA
/ ~ BOUNDARY VNf `
g 9 f-- - -P~H5N1, _-3,p --- --
a'
' 8 9 10 ' 3
5 ~ ~ 11 12 13 14 15 I ~$ !~ I P~~ s
I
i m
%W8 I~j ~ I ~~O ~~~~
/ I O~~ =44 P4 0
__ - ~ ~ aN
- -
_ 3100 4iW _ 4 §6 ~ F
[f~ W
SST/ __ ,_ _ _ _ `INSTPllPfRMANEM BARPJCADFS IjJ
-- --~ 8_ 3 PCR DETAIL SHEET U.2 fIYPl =
% %~ ~ 24 23 22 e >
21 2 0 19 18 17 16 ~ 1 I ~
I, i I I ~ _ ~
II I I 5
I 'I a 3 0_
j M1 ' Fa.Nx ' I - .~n.mvxo.
f I 16 IBOUrvDARr uue ' I 'i. I~ ~ ~
p~ @~ ~AHOMA TERRA DIV. $&6 ~ ~ .. z
it j I I j ! I ~ 4~, o r I ~ N ~ TAHOMA TERRA DIV. j3&4
di H !390 1391 39~ ~ '.93 139{ , 395 396 j 397 ~ 398, s'~~ i ,=~ '~ ~~ G o~~~r~` ~
rP~u ~o: ~Y.~ kMkn II C1.0
SECTION 23, TOWNSHIP 17 NORTH, RANGE 1 EAST, W.M. --- - - -_ ~ \
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THURSTON COUNTY, WASHINGTON 1 _
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GENERAL NOTES '
ALL WORFMANSnIP AND MATERIALS SHALL BE IN
ACCORpANCE WRH CRY OP TEUA STANDARDS AN0
1Hf MOST CURP.fM LOM OF iNf sTAif OF
WASHINGTON 5TANpARp SPCCIFICATIONS POR ROAD.
BWOGE MIO MUNICIPAL LgJ9TRULTION. INCWDMG
APWA SUPPLEMfM TO pN5bN 1.
2. PPJ6ft iO COMMENCING WORK, Txf LOMRAROR
snALL OeruN AU UECESSARr LOCAL STAR.AND
FepeRµ APPROVALS ANO rERMns.
3. RSHALL Bf TNF RF5PON51BILrtY OF Tnf LOMRACTOR
iO HAVE AfAFT OF inE MPROVEp PVWS.
SPECIFCgTIONS. MID CONIRAC! DOUIMEMS Ai lnE
CONSTRLIRION SIR AT ALL i1MC5.
4. APRECONSIRIJLTION MffTING SHALL BE NfLO WRn
ixf CItt OF Yf W CON5TRVCIION INSRCLION
OEPARRAFNL PRIOR TO illf START OF UJNSTRULTON.
5. ExISPNG UIIlN1E5 Aftf 9HO.vN WRREPfRfNCE ONLT,
IXAR LOLATION9 9nALL BE FIPyD VfRIPIfO BT
coNLRAiTOR. '
SECTION 23, TOWNSHIP 17 NORTH, RANGE 1 EAST, W.M.
UTILITY CONTACT LIST THURSTON COUNTY, WASHINGTON
PUBLIC WOP.25' LrtY OF YEW 1{360)-45Bd406
STORM pRAIN SfRNCL CItt OP KW I-f360)-45&0438
wgTER SERVICE Ptt OF YEW - I-(360)-458-0410
seweR 3ERmcf: aTr oP YEW 1-(36m-45Baan
TELEPHONE 5fRVICE: YCOM NETWORX I-(3601-958-»OI
POWER:GA59ERVICE: PUGP SWND fNER(l' 1{360)-459-1021
I-(EW)-321-]»9
CAN SERVICE LOMCAST L(ttU)-266-22>B
PHASE 1 SITE AREA o
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GRO55 PREA 6.N K. s[q¢
OPEN SPACP RfpU1RfD: (6 W ALJ (0.05 AC.)
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' CURVE TABLE
CUHVEk PPDIUS LENGTH CHORD BEARING DELTA
LI I6U.C0 39ffi20 N13°OS'I1.09E 22°4d'59'
C2 203.13 225463 NI°3tl 09.TIW 521'33'
C3 203.13 22.3463 NI°3p On."1]W 6°21'35'
LINE T ABLE
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SECTION Z3
TOWNSHIP 17 NORTH
RANGE 1 EAST
W
M
ER OSION CONTROL NOTES: SITE STABILIZATION SCHEDULE: ,
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,
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O rc,srAU.PrtrERrgevcPENCwc.ASrocertROL '1. sEEmNGrMULCnwclslNreuoeDmREDUCEeROS1oN THURSTON COUNTY, WASHINGTON
SEDIMENT RVNOff PER DffAILgJ SHEET C3.l A5 B5'$fgBILIZING EXPOSED 5DIL5, gWf]1 JSTpBVSIfED
LEGEND
RCOUIR£D BY CItt [NGINEER OR OfsIGNATfD EROSION VCGPigTIVf/MULCn LOVER LS ONE OP inf MOST
CONIftOLSPfGAL15T. EFFECTIVE MfT110DS OP REDUCING EROSION. FILTER fA8R1C FU+cf -y-x-rt-
O2 INSTALL SEDIMENT PROTERION SILT SpL.l M3~3 2. iMf OP(IMUM SffDING W1N001lF POR N'ESIERN UMILS OF CONSTRUCTION ~ ~ ~ ~ ~ ~ ~
. SIR£AMGIJARO INSERT AT NEW AND EI(15TING CATCN
PER DEIAILON SH
BAS
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ADON WASHINGTON ARE APRIL I PIROUGN JVNE 30 PND
5[PfEMBERITNROUGn OGTOBERL SEEDING iNAT
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LOC
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S
IMERCEPFORONCH -x--s-~-y-
MAIMAINSIIT SCLK UNTIL51Tf I5 PgVEp AND OCLVRS BETWEEN JULYIAND AVGVST 3p WILL
STABIV2ED. CGNIRACTOR SHALL ENSURE THAT REWIRf.IRRIGATION UMIL ]s PERCEM GRASSCWCR GRAVEL LHELR OAM
SEDIMENT DOGS NOr fALLINTO CATCH BASIN WRING 56TABOSHED. SEEDING TMPT C.^.CURS BfTVffN _
REMOVAL OP inE SILT SACK. OCIOBERI IJJD MARCT130 WILL REOUIREAMULCH 12'CONCRETE NLVfRI' ~(
OR PIpSTIC COVfRUMIL ]S PERCENT GRASS LOVER `I
O3 INSTALL LONSTRUQION ENIAANCE PER OEfAIL ON _ IS ESTABUSNfD. _ SILT SCLR ® I_
' $HEf(C3J. 3. TO PREVENT $fED PROM BEING W0.5NfD AWAY
CONFIRM lT1Ai ALL REOIIIRfD SURFACE WATER'
O POR gDDIiIONAL.ER0510N COMROLNOiF55ft CgNTROL MEA5URES NgVE BEEN INSTAIJED.
snEEr cS.l. <. ru,+PORARY GRODUO wveRrvROrecNON SUCH ns
' JUrf MATLMG, EXCELSIOR MgT¶NG, WOOD CRIPS OR
' - CIPAR PIA5TIC 5lIffNNG SHOULD BE USED UMIL
PERMANCM EROSION PR01£LIION Is fSTABLI5nF0.
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iO WESifRIY LOWiAND ifMPORA2Y SEDIMEM FOND
sfE DETAIL AND NOTES ON snEH C5, I
sURfAGE AREA REpUIRCD ~ 136] 5F
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W:M
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~ - ~ - THURSTON.000NTY; WASHINGTON' - ~ -
e .STANDARD EROSION CONTROL NOTES -.
~
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INLET PROTECTION
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C3.f
SECTION 23, TOWNSHIP 17 NORTH, RANGE 1 EAST, W.M.
THURSTON COUNTY, WASHfNGTON
CONSTRUCTION SEQUENCE AND PROCEDURE:
1- SCryfpUl£PP.ECONSTRIICLION CONffRPNLf WRry TNf LfIY.
LONIRACIOR PROJEQ ENGINEER. ANO CONSTRUCTIONSTACING
sugveroR.
2. INSTALL ROCK LONS1ftULTON fMRgNLE USf 4'TO B'
pIAMEI£RSPAUS WIM IY.MINIMUM pf PIH.
3. INSTALL FILTER fABRIL PfNCING IN Tryf LIXY310N5 SNGWIJ qJ
THE PIAN$ AND IMPLfMfM ALL EPDSIp1 CONROL M!/SVRES
PfR Try0lAP5pN CRfPK CULVERTS BgLKWATERANALT515.
9. LIFAR 512 IGRIIB&NG qNp ROUGry GRPDINGI '
i MNMNN fOUIPIAfNi AND WATfRSUPPLY FOR DUST (AMROL
6, pE51GNAT[ AN ARPA POR WP5MING CAIICRLTE IP.VCRS TO
CONTROL iryf RLNOfP ANp fUMINgiE ENTRY IMO TtlE STOPJA
pRAINAGE 51y'TEM.~
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9. CONSTRUCT ROgpNgY qNp INSTALL IANOSLOPING. 50p PNppR
SfEO, AND MULCH NL pISNRBfp AREAS.
10. MAIMp1N PLL EROSION CONTROL FgCIUTIf$UMIL 111E fNTIR£
SRf IS STABWZfp ANO SILT RUNOfF CEASES.
STORM DRAINAGE CONSTRUCTION NOTE:
I. TO PftOTELT pRNNAGP p[l£NiIGN PgCILITIES PROM
SEOIMfNTATION, THEY SHALL BE CONNECTED TO THE
STORM CONVEYANCE SYSTEM AFlfR51Tf WDRF, ROADS,
UTILITIES: PfRIAANEM fft0510N LOMROL MEASURES.
MI01lSlp5CAPING ARE IN PLACE IN THE TWBIRARY AREA
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6
SECTION 23, TOWNSHIP 17 NORTH, RANGE 1 EAST, W.M.
THURS70N COUNTY, WASHINGTON
LGNTROL STRUCTDRE WfR1
IXISTING GRADE 36 ]'~ rmw . ~WRIR AND ORIFICE
WN1
9' DEAD PWL
GUARftYSPAIL DI[f
COMPACTED ~
SUBGRADE -
BLOCK WALL CROSS SECTION
-NOT TO SCALE-
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NOTE: POND WTTOM t0 BE NNEO WITH
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363' WIM IPJSH ROCK
3' DEAD Pool
PRE£BOARO
360' I
GENERAL NOTES {STORM DRAIN ~ 2
CONSTRUCT
ON
I
):
I. ALL WDRKIAANSMIPANp MATER1gI5 WILL SIN
ACWRDANCC WIRI THE CIIY CP YEIAA PDBNC WDRKS ~}~
$TAN DARDS ANDLHE MOST REC£M LOPYOP iXf Qt ~ ~ _ .
~
5LATE Of WASHINGTON STANDgRp SPECJFICALIONS G4
POR ROAp, BRIWEANp MDNICIPAL CONSIWIRION my
(,vsporiAPwA): .`a I
c~
Yd
2. TEMPORARY fR0510NNlATfR POIWiION MfA$pRfS J^E
WILL Bf RfONRED IN gCLOROANCE WTin Tf1E
STORMWATER MANAGEMfM P4rv ANp SERION
I ~pT. 15 OF iHf $iANpO.RD 5P[CIfICATIONS.
`
3. COMPLY WITH ALL OTHER PffMR$AND RfOUIRfMEM$
OF THE CIN OF l£IM ANp/OR OTI1fR GOVERNING
AUTHOWTIES OR AGfNGfS.
4.
A PR2{ON5TRUQION METING WILL Bf HEl- W1iH iHP ~o~
H V,
CgMMUNIttpfV[LOPMfM DEPgRTMEM PRIOR iO U~qe
iMC START OP CONSTRURION. V
N
5.. ALL STORM MAINS AND RETEMIQY9flfMION AR[g5 C
C
S PN
MLL BE STARED FOR GRADE ANp AOGNMEM BY AN S
fNGINPfRINGpR $pRVMING FlRM CgPABI£ Of '~ ~ a
PERFORMING SUCH WORK. ~ ~O -~
$
~~
6. STORM pRAINRPf WILL MEET THE FOLLOWING
REOUIRfMEM3:
A. PWN CpJCRfiE PIPE CONFORMING iO iHf DO'~"
R£OUIRFMfM50P Ag5MO M86. LU552. ~~o
~
'~
8. RfINfORLEO CANLRfTf PIPE CONFORMING TO TMC W
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V ~ ~" ~
Rf WIREMEM5 OF Ag5HT0 M 1 ]0. p
~ ~, p m
333
C. PJC PIPE CONFORMING TO A5PM p30395pR 350R
ASTM P]94 OR /STM F6]9TYPfI WnHHJINS ANp ~ ,.~
GASKEf$ CONfORMING i0 A$iM p 3212 ANp ASTM P
~ -
4]J. ~ ~ 3
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WRII£IRpN RPE CONFORMING iO iHf
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Srv P
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REWIRfMfM$Of AWNAL I$I. THICKNESS LIA5$ °U ~
P$ $Hb.(M ON THE PUNS. n ~ ~ p O
E. HIGH-pEN$ITY POLIEfHttfNf SMOOTH INTERIOR PIPE
WNFOPj.IIN6 TO PPSMO M252 TYP[5 OR PASHTO
M299 Tyff $, WRH A 6ASK£TED BELL ANp SPIGOT
JOINS. (/J
P. ALUMINIZED SifEI HENCAL OR SPIRAL GB PIPE IN F-
DIAMfTfAS pF THIRIY (30) INCHES OR GftfAifR WITN Q
- AMANNING'$VALUf OP 00200RIF55. Z
]. SPECIAL STRUCTURES. OIIAVATCR SfPARATOP5 AN0 ~
OUTItT COMROIi'MLL BE IIISTAUED PfR PIAN$ ANO - O (n
MANUfACNRfPS RECOMMENDATION'. z J
N
B. PRONTO[ TRAFFIC CONTROL PUN($)PS REWIRED IN ~ N F
ACCORpANC[WITH MUTCD iO THE PUBLIC WORTS Q ~yJ
DEPARTMENT. 1RNFlC CONTROL (IAN$MUST BE d ~+ Q
APPRpVrtD PRIORTO TMf START OF LON$TRNCfION.
9. ULLTH[UTIUIIES UNDERGRWNO LOGIiION LfNiFA ~
AT 1-&U' 424-5533 A MINIMUM OP LWO Q) ~
BVSINf95 Dq5 PRIOR iO ANY PXCAVAPIONS.
10. WHERB~y'[NINfRIONS RfOUIRE'FIfLp VERIFIUiION$', ~
THE C011iRACTOR WILL f%POSE CgNNfLfION POIMS
qNO VfKIPY NECESSARY fIrtING51WD 12) &151NG55
PAYS FF,IOR TO INRIAi1NG TryE WORK.
1 L FILL PLfyfMENi'MLL NOi Bf PLLONEp IN ANY OPEN
CHgNN[L USED FOR STORM CONVEYANCE WITHOUT D RAWING.
WRIITEry APPROVAL fROM THE PUBLIC WORKS
DlRfcr
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RESTORATION. TABLE 1
z•ASPrIUr CONCRETE PAVeMeur
z• eeusnm wPrACIrvG roP eouRSe.
e•BAUnsr
4' CANCRfT£ SID tWAII( PER DETAIL ON
SNfR R3. PRIOR TO CONSi@UCIION,
CGItRACTOR SnALL VfftIPY DPJVPWAY
loUnou.
2Y ROUED CURB ANO GUirFR
I B' BARRIER CVRB AND GURfR
SECTION 23, TOWNSHIP 17 NORTH, RANGE 1 EAST, W.M.
THURSTON COUNTY, WASHINGTON
O ROAD CROSS SECTION A
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THURSTON COUNTY, WASHINGTON
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NOTE POR UIIVIY DCTgIL5, Sef 5nfE15 C6.1 AND LL.2:
GENERAL NOTES (STEP SEWER MAIN ~ @
INSTALLATION); °ti4
~~a
I. ALL PVSIIL PIPE ANO SfRVICF55nALL BE INSrNLPD jb S
WRH (ANTINUWSTRALf.R TAPE INSrALL£D 12'TO h,
IB'uuDER me PROPOSED PlwsnfD SUBGRgoe. me
MARKER SMALL Bf PfA5rIC NON.BIODEGRADABIE,
METAL CORE OR BACKING MARKED Sf WER Wl llCn LPN
Bf DerfL(fD BT A STANDARD METAL DETECTOR. IN "~
ADDrzION, STEP srsTems, ANO FoRCe MAINS snqu ~ ^
Be INSruIED vnm I9 GAU6e DIREaauRr RATED w
COPPER WIRE WRAPPfO AROUND ALL PUSTIC PIPe,
aROUGM uP ANO rlcD oFF qr vALVE Bom. rgPf
snqu BE TERRA rgPE'o' oR gPPrtoveD eauu. mf s d S
TAPE ano WlRf snqu Be FURNISHED Br rnE ~~as
I coNrRgcTOR a4
I z. Au BuweD POWER PoR sreP svsreMS snnu BE a = ry
wsrAUeD wrtn coMlNUOUS rRaceR TAPe wsrAUEO ~~~
Iz•aBOVe me BUwfo POWER. me MARKER Snnu spa
BE Pwsnc. NoN-BlooeGRgDABU. METAL wRE ~ j
BACYJNC MaRFEO h•oNER•. TAPE snau Bf FuRNlsneo g L
Br coMRgcTOR °
S. Au STEP Maus snqu Be nroROSrgncqur rfsreD IN
coNFOR>sANLE wnn mE ABOVE-REFERENCED . ~ `°
sPfPFIGTION FORTfSTING WATER MAINS. 15fE M1OrE
LI IN ADOIPON. ALL STEP MAIN55nALL Bf -a{
F PIGGfDKI£ANfD IN 1nE PRLSENCE Of mf CRY V=~D°~
4i'E5 1NSPELTOR PRIOR rO P1ACING SrfP MAIN IN SERVICE. m
9. PUMP CONTROL PgNE15 SMALL Bf LCGITED ON N
GAFAGE WALL OR REMOTE PoSr. UNIE55 OTHERWISE
3 AMrIOGZfD BYmEC1IY OF YELM.
O~~E
m 5 IN mE EVEN TngT mf DEPARTMEM OF LIBOR AND C ry
a INDUSTRIf50Rmf LItt SnOUID RfGUIREA °
° BEPARATf'ON~OFF SWITCH CONTRpWNG P(AN£RTO ~° B o
O THEPUMP (ANiROL PANEL. sAIDSWITLM MUST Bf E
LOLKABIE OR ngVeA LOCKING COVER TO MIX-AN pEiJ
N OLVMPU3 ME BPI2s, 30MM PADLOCK.
6. INSPECTIONS FOR ON5rtf STEP INSTALIATIONS AR£
I R£OVIRFD. A 29 HOUR NOTICE iO mf SEWER
OfPARTMfM IS RfGUIRfD PRIOR r0 THE MSPECTION.
REMS NEEDIN61NSPfL110N ARE:
AI TANK INSTALLgNON. IE BfODING qND LOCATION
O) TANK INFILTRATION, IXFILTRATION iFSi
q s.5. PRESSURE iESi Z
O) SERVICE LINE PRESSURE TEST O
f)fINAL INSPEQICN L7
~= a
2 ALL WMBER (PL1WJOq ETG) USED TO MOUM fIR1ER ~ ,t,DD
PUMP CONIAOL PANEL OR POWER METER MUST Bf ~Q
PRESSURE TREATED. a ~+ J
B. Ar me enD of ALL srEP une sNaours, snqu navE ~ H
n9•x 9'POSr ANDAREBAxsnowTUG meerlD Of ~ ~
me uue.
O
R i~NRBiOpNI COIMM1 nWX C6.O
flllDCK
-GENERAL NOTES (WATER MAIN INSTALLATION(:
ALL NORRIAANSnIP qNp MATERIAL SHALL Bf IN PCCOROWJCf
L+'rrn crrv of reLM STANDARDS nvo mE MOSr cuRRfur wPr
or mE STATE or wASnwGTON srqupARp speaflcgTlolLS FoR
ROAD. BWOGf ANO MUNICIPAL CONSTRIJLTION. '
2. ALL WORK IN CT'WGni-OP-WAY REOUIRGSAPfRMR fROM 1HE
CIrv OF YfLM. PRIOR TO ANY wOVRLOMMENCING, THe GCNERAL
COffiRALTOR SHNL ARRANGE FOR A PRfCON5TR11CfION MEETING
i0 Bf A1TfNDfO BY ALL MAIOR CONTRACLOR5, REPR£SfMATIVFS
Of INVOLVED VIIUTIES. PND THE LNT OP MEIN, COMgR TMf
PUBLIC WORMS DfPARTMENi AT f36014sBE406 TO SCHfDUIf
mf MEHING THPCONIRACTOR IS Re5PON51B1£i011AVE ASR
.OP APPROVEp PIANS AT mP MfRING.
3. WAT[R MAINS SHALL Mffi iME fOLLOMNG SPECIfIG90NS-
POLYJINYL LNLORIDf IPVL)PIPE NNDER 9INCnf91' PIPC
MAifPJaL SHALL Bf WL 1120: PJC 1220.OR PJC 2120. AND '
HAVE MINIMUM WALL THICYJ1f55 EQUAL TO OR L6s iMAN (sDFI
Of 21, ANp MfR inf REOUIREMfNis OP 1Hf STANDARD
DIMENSION RATIO WSDOL $TANDAR- SPECIFICATIONS SECTION
930. I (SIB- POLYVINYI. CHLORIDE INGI PIPE (4 mRWGM I2
INCHP51: 5HALL MfR TH[NfWIRfMENTS OP AWNAC900,
CUSS I SO WALL mICKNE55 EOGLTO OR GREATER mAN THe
SDR L418, ANDMffT THE RfOUIREMPN50F W5WT '
STANDARD $PCCIfIGTION$ $fQION 930.1 (SW. POLWINtt
LHLOPoDe (PVQ PIPe (I q mROUGH 2O INPIGST SHNl MER THE
REOUIR£MENiS OP AWuvq L90s WN1 THICKN[55 EQUAL i0 OR
IE55 THAN inE 90R Of I0. DUQIIt IRON PIPE IDIPI: OIP 5HALL
CONFORM To Awaa c I s I cws so oR GREATER. arvo snaLL Be
1116-INCH LfMENT UNfp AND SfAIEp IN ACCORDANCE Wlm
ANSVAWaA C104/g21 a-90. ANO MEP mf REOWREMfNr50P
WSWTSTANOARp SPECIPICpTIONS SPC710N 9-30 Z(I).
54JNCH FlRE MYDRANr SPOOI$ SMALL BE QO55 SZ
4. GAi[VALVES SHALL BE Rf$NfNT WfWB NRS (NON RISING STEM)
WITH O-RINGS sfa15. VAIVf ENDS SHALL BE MECHANICAL JOINT
ORAN51 FLANGES- VALVf3 SHALL LOrvfORM TO AW WA 509L0-
VALVES SHALL Bf MUfllfR, M d n. KENNEDY, LLbM R/W OR
WAifRW55fR1E5sW. LISTING VAIVfS IO BE OPERATED BY
LNT fMROYFfs ONLY
5. n1DRAMS 5HALL Bf M f H REUANi S1YLE 929 OR 129, MUfUfR
CFMURION. OR CLGW MEOgLUON. HNPANis SHALL Bf 04GGE0
UNTIL SYSTEM IS APPROVED. '
6.. ALL UNES SHALL Bf CULORINALEp ANp iFSTPD IN CONFORMANC[
wlTn rnf ABOVe RfIfRENCeD sveclelCANON More I).
~. au PIPe AND Sfzvlcfs SHALL Be MSrquED Vnrn coNrlNlmus
TRACfA iPPf INSTALLED 12• i0 I B' UNDFA mf FINAL GROUNp
SVRfACE. iMe MARXfR SHALL B[PUSTIC NON-BIGpEGRADg01f.
MRPL CORE OR BACKMG MPRfED WATER 2-INUI-WTDE MINIMUM,
WrIICn GN BE DREC~ED BY A STANDARD MFLAL DfiELTOR TAPE
SMALL BE iERFA igPE 'D' OR APPROVED fOUAI. IN ADDITION i0
TFACER TAPE, INSTALL 14 GAUGE HEAVY OVIY pIREQ BURY
COATED COPPER v.9Rf (PAIGE V F SINGIE CONOVCIOR LR KNAU.
VAiAPPfD AROUND mE PiPf, BROVGML UP AND ilfO OfF qi VALVE
BOpY N.L WIRE CONNECTIONS 5HALL USf WTRf NUr9 AND A DBR
SPLICE KIi, MANUFKTURfO BY 3~M OR APPROVfp fOUAI. ALL
LOGTOR WIRE fOR SfRVICf PIPE SHALL BE CONNECTED 10 mf
LOCATOR WIRE ON T11f WgiCR MAIN.
B. PROVIDE TRAFFIC COMROL PIAN(SI qS REWIRED IN ACCORDPNLf
WfRI MUTCD.
9.. ALL WATER MAINS 5HALL BE STAKED POR GRADES ANO AHGNMTM
BY AN PNGINffRING OR SURVEYING fIRM CAPABI£ Of
PERFORMING SUCH WORK,
10. ALL SfRVICf LINE UJCATION55HALL BE MARKED ON mf FgLf OP
THE CURB wlm AN fMB055[O W 1/41NLH IMO CONLRC E.
II. CALL UNDERGROUND LOGTE AT I-~424-SSSSAMINIMUM OP
90 HOUPS PRIOR i0 ANY IXCgVATIONS.
12. mf LHY WILL Bf GIVEN )2MWRS NOTICE PRIORTO 5GHE0UVNG
A SHUTDOWN. NRIERE CONNECTIONS REpUIRf RIEUJ
VEAIPILAPCN'. CONNECTION pOIMS WILL BE IXPOSEO BY
CCMRACTOR ANp f1iTINGS V:RIfIfO 4B HWRS PGOR i0
019TRIBUTING SHUT-OLWN NOTICES,
SECTION 23, TOWNSHIP 17 NORTH, RANGE t EAST, W.M.
TNURSTON COUNTY, WASHINGTON
~ Li ii ri./ /fit
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8 ~ / /
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BEPT. ar PGeuc ww+Rs
TYPICAL
PIPE TRENCH
~~ 3
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RESTORATION .TABLE 1
GENERAL NOTES (WATER MAIN
INSTALLATION)(CONT): -
13. AT ANY CONNEQION i0 AN IXISTING LINE WH[RE A NEW VPLVE
IS NOi INSTALLED, mf IXISTING V$VE MUST BE PRf55DRf
iESTEp iO CItY STANDARDS PRIORTO LONNfLIION. IP AN
IXISTING VµVE FAILS TO PO55 THE TfSi, mE CONIRACfOR
5HALL MAKE inf NECESSARY PROVISIgJS TO TCST THE NEW
LINE FRIORTO LONNfC110N TO 1HE IXISTING SYSLfM OR
INSTALLANfW VALVE. SHOWN ON 1Hf5f PWJS qNO BfFORf
ALLfPIANCE Of ALL BfMS
14_ gFrfRCOMPIETION OF THE PROJELf, mf CQNTRgLIOR SHALL
OBTAIN A'PUNLM USP PREPARED BYTnf LAYS INSPECTOR
DfSAILING REMAINING rtfMS OP WORK TO BE COMPIfifD. ALL
ITEMS OP W9RK SHWM ON iHfSf PWJS SHALL Bf
COMPERED TO Tnf SAIISFALTION OF TY1f LILY PRIORTO
ACCfPfANCf Of lTf WAnR $15ifM ANp PROVISION OF
sgNRARY SEWER Sf RVILE.
I5. AC/JPY OF THfSf APPROVED FlFNS AND APRICgpI,f LHY
DEVELOPER SPELIFIGTIONS AND ORPILS SHALL BE ON51i[
WRING mNSRUamN.
16. ANY REVISIONS MApf TO mESf PWN5 MU5i BE REYIFW[D BY
THE OfVEIOPERS ENGMEfR AND TMf CrtY OF YELM PPJOR TO
ANY IMPIEMPMATION IN THE FIELD. iMC LI1Y SHALL NOi Bf
Rf5FON51Blf FOR ANY fRROPS AND/OR OMLSSICNS ON mFSf
PIANS.
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MAreRIAL wsTALUnoN Nores: - ~ ~ SECTION 23, TOWNSHIP 17 NORTH, RANGE 1 EAST, W.M.
GENERAL NOTES (LANDSCAPING): THURSTON COUNTY, WASHINGTON
I. THIS IRRIGATION 515iEM SHALL VSE RECIAIMfD WAIfR. ALL "
INSTAW90N SHALL CONFORM ID1fUd MUNICIPAL CODf L NO IRRIGATION RfOU1Rfp FORTRfE5 WITHIN ]S FftT OF HOUSES. "
13.z4.o3o IATEST fpmou. TRefs Ar PARK$vnLL Wwze pwPlRwcgnoN. GENERAL NOTES (LIGHTING):
2. ALLIRWGPiION PIPELINES, VAIVEICCNiROL BO%FS Snell Bf 2. SIRftT TRCfs WILL Df INSTPLLfD BY THE BIJILOER.
COLOR-COpfp Nw'1£. THE PI%NG SnALL Bf $iPMPfD OR I. SiRfLTVGHTING SERVICE CABINET SVPNED AND INSTAV£p BY
MPRFED'CAUTION: RECWMED WPifR-WNOT DRINK'. ALL 3. SPACING Bf1WffN iRffS VAwfS fROM 34'T060'PND15 CMMfRPfR L1IY OP YFIMSPECIFCpTIONS(NON-MFfERED).
PIPfLNf SHALL BE INBTAII£D W/ FVRPIf INDEMIPICATION TRACER pfFfNOENi ON IDi YADin.
TAPE PLL POIN60P CONNfQ10N SHALL Bf sIGN®'REQPIMED 2. iYPICPL WMINAIRE POI£SVPPpEp PNO INSTAU£O BY OWNfR PER '
WA1ZR-DO NOT DRINK' OR OinfR PPPROVfO SIGNAGE... 4. AREA$WMILH HAVE BEfN LIEPR[D OP V2GfTATION OR GROUNp WSOpi SPELIFlGTIONS.
' ' LOVER PRIOR TO OR DURING CONSTRUCTION ANO WHICn ARE NOi
3. iH[RE SHALL B[ NO CRp55{ONNECTIONS BETWEEN RECWMCO ', OTHERWISE DEVEUJPfD, SHALL BE IANpSLAPfO tflTM LRffS, 3. MICAL JUNCTION 80% SUPPJEp AND INSiAUfD BY drNJER PER
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- 6. PPEVIANOSCAPING PERTfIM MUNICIPAL CODE SERION 5. CONLRLTE WMINAIRE POI£Bg5f5 iO BE C0115TPJ1CTCD PER
IZ.WASO BHALL Bf IAWIDfD IN AND AROUND ALL WSGOT 5TPNDPRD RAN J-I IB.
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" ~ _ ~ 6. PULL WXGAS REOUIftfp PT ROAp CROSSING PERCT'OF YEUd
' SPECIFICATIONS.
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