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Technical Information Report 1 ~ :\ ~ 1> . TECHNICAL INFORMA nON REPORT for RITE AID DRUG STORE located at S W C Vancil Road & Yelm Avenue East (SR 507) Yelm, Washmgton BUSH. ROED & IllTCHINGS, INC 2009 Minor Avenue East Seattle, Washmgton 98102-3513 phone: (206)323-4144 fax: (206)323-7135 contact: Brent CUmmIngs BRH Job No 97312.01 July 6, 1998 .. 0 I ~ = TABLE OF CONTENTS Page No 1. Project Overvtew ll. Prehmmary CondItIons Summary Ill. Off-SIte AnalYSIS IV RetentIon/DetentIon AnalYSIS and DesIgn V Conveyance Systems AnalYSIS and DesIgn VI. SpeCIal Reports and Studies VIT. Basm and Commuruty Planrung Areas VIll. Other Penruts IX. ErosIOn/SedimentatIOn Control DesIgn X. Bond QuantItIes Work Sheet, RetentIon/DetentIon Facility Summary Sheet and Sketch, and DeclaratIon of Covenant XI. Mamtenance and OperatIOns Manual XII. Appendix ~~ 1.~ob-nos\97312\06-30-98 wpd ... ,.", L PROJECT OVERVIEW ." " ... > ~; 1 IQtH'\n~ ,OJ 3 i ~ Of) .' , r 1 .... -, ; i ;l 2 105lH AVE. 109lH AVE. VI AP NO .S.CAlE " , ,.", ThIs proposed commercIal development will contam one buildmg of approXImately 18,800 square feet WIth a 72,000 square foot parkmg lot and approXimately 37,900 square feet oflandscaped areas. Stormwater will be collected m a pIped conveyance system, treated m a coalescmg plate oil water separator and dIrected to an mfiltratIon system. Minimum Requirement #1: Erosion and Sediment Control DIVersIOn dItches will dIrect stormwater runoff durmg constructIon to a sedIment trap constructed m the southwest comer of the SIte. Filter fabnc fences will be mstalled along adJacent propertIes. Minimum Requirement #2: Preservation of Natural Drainage Systems: No natural dramage courses are located on or adJacent to thIs SIte. Stormwater runoff will be mfiltrated on SIte and little If any runoff will leave the SIte. Minimum Requirement #3: Source Control of Pollution VegetatIon cover Mamtenance of storm dramage facilitIes Minimum Requirement #4: Runoff Treatment BMPs Runoff will pass through an coalescing plate oil/water separator pnor to mfiltration. Minimum Requirement #5: Stream bank Erosion Control Not applicable. Runoffwill be mfiltrated on SIte. Minimum Requirement #6: Wetlands Not applicable. No wetlands have been IdentIfied on or adjacent to this SIte. Minimum Requirement #7: Water Quality Sensitive Areas Not applIcable. Runoffwill be mfiltrated on SIte Minimum Requirement #8: Off site Analysis Not applIcable. Runoffwill be mfiltrated on SIte Minimum Requirement #9: Basin Planning No Basm Plan for thIs area has been Implemented. -.Ji 1.~ob-nos\97312\06-30-98 wpd . 1 ,.", Minimum Requirement #10: Operation and Maintenance OperatIon and mamtenance qwdelines and a schedule IS mcluded m SectIon XI of thIs report. Minimum Requirement #11: Financial Liability Letters of credit will be supplIed as requIred. --- . 1 ~ ll. pRELIMINARY CONDmONS sUMMARY .0 --,0 -' . . = EXISTING SITE HYDROLOGY (PART A) The eXIstmg SIte IS a 2.956 acre parcel frontmg on the south sIde ofYelm Avenue East and the west sIde of Vancil Road. Smgle family resIdences border the SIte on the south and west sIdes. The SIte currently contams two small one story buildmgs on the east sIde and a one story church With an asphalt parkmg lot on the west sIde The eXIstmg ground cover IS mostly grass WIth trees and some brush. The SIte IS flat With a slIght slope down towards the southwest comer There are no storm water conveyance systems or defined dramage channels entenng or eXItmg the SIte The church parkmg lot contams a storm water system WIth dry wells. There are no public storm systems in the steets frontmg thIs property It IS assumed that runoff from thIs parcel for the most part mfiltrates on SIte. DEVELOPED SITE HYDROLOGY (pART B) The developed SIte will conSIst of a new commercIal building With asSOCIated parkmg and landscapmg.The site ImpefV10US area will be 2.085 acres or 71% of the parcel and the pefVlOUS area will be 0 871 acres or 29% of the total SIte. An mfiltratIon system will be mstalled on the SIte per D O.E. standards. ThIs system will be SIZed to mfiltrate the 10 year storm m 24 hours and checked to make sure It can mfiltrate the 100 year storm m less than 48 hours. The measured mfiltratIon rate for thIs property IS approXImately 1 50 mmutes per mche. The deSIgn mfiltratIon rate IS one half of that or 0.33 mmutes per mch. A correctIon factor of 3 8% for 71 percent ImpefVlOUS area was added to the reqwred mfiltratIon surface area. A coalescmg plate oil water separator will be installed on line pnor to the mfiltratIon system and oil pollutIon control tees will be mstalled m the mfiltratIon system manholes. 1. ~ob-nos\97312\06-30-98 wpd . . ,.", ilL OFF-SITE ANALYSIS \ ~' . . ,.", A.) OFF-SITE DRAINAGE TO THE SITE B.) OFF-SITE DOWN STREAM ANALYSIS ./ Jo ....;>- ~ IV. RETENTIONIDETENTION ANALYSIS AND DESIGN 1 , BRH Job No '1 '1 -z, I"Z. ,0 I Date ~ /t-C; /~ e, , I H Y 0 R 0 G RAP H I N PUT W 0 R K 5 H E E T Project: {~l~ R~ \e. ~:~ Basin Identification (5 char): DId'MC' 'D 1- ) to ""0 1'2.4 H ~ 1 1) 10 0 lOO \ I D E V '2 '(' {Z lZ.4+.H~. (...\t- . , D::'v' Description (30 char): ~ Total Area, 1. , ~ &;' l..t ~ l,*~ Precipitation' 10yr 1,0 \a "'^ 0- 2 yr '2., 'Z.. 5yr 25yr 50yr_ 1 00yr 4, "2- HYd~Ph NUMbers' 10yr~ 100yr@ (p 2yr "Z. 5yr _ 25yr 50yr_ Ti/"lle of Concentration length slope surface type "nil value tiMe Total Travel TiMe: A t,C;..J ~ l." '-'I '^--' 4t s +~("\J p' p~ c;~ c, t~ Pervious Area: 0, cO, I tL(., (i",^~v'" 1... Da c; ~ ') Land Use: (e-tz..1 \ lt1.M.d Sc..o..p \''"''j Soil Type:~p~ A.J..;...J ~ Hydrologic Group' t) Curve NU/"llber: cqO .1 -.-?' HYD,INP LP '^"O""+~ :: ~40lo '2./-z.4 "olv~ . . 87 sf CZ21 18,802 sf 221 sf ~ ~ 21 0 sf ~3Sf 262 sf ~ PROJECT AREA: 128,748 sf OR 2.956 ac BUILDING AREA: 18,802 sf OR 0.432 ac PERVIOUS AREA: 37,921 sf OR 0.871 ac IMPERVIOUS AREA: 90,827 sf OR 2.085 ac ---- PERVIOUS AREAS SCALE 1"=50' ) \97.312-01\XSITDWG BRH #97312.01 6/25/98 ,.", STORMWATER MANAGEMENT MANUAL FOR THE PUGET SOUND BASIN ( 491 I I I I , -- 124 123 122 121 I ---t~~_25.'... .._~.!_al._IJ!. : ""-,' ~~71 ~~ ~\ E2~'~) l~ i '~~'" -Vr-,~E '0 ~~.~ ~~a I ~ Ci&GA ~-I' ,,.,~Ih .~ - -'_'. ;or ~a \ ~,..' ,~~~ '-J,"-' f ~~ I '- I FRIDAY HA~B~ ~~ PO~T ;S'rA~EY \ ~(;;Z30 ~~ ~~i!i6 II ~ "i >. '-.. ( 1'1 (~MT V" "'I'~~~~ ~. ~ ~~ FIf I ,.-40....." I ~ j:-\'- . r,~~II.>> ,( -,",,~) II..-; _.!t~'-...~.t'-- I Nl ::a~", ............j I --f-rT I l\ ~CG"~. ~ ~~!'v "tQ =2/~ l'rh~ ,:~~ ~---""40- r- - __ ----- I / ~ ( fr... ". 1rIU. ~~ '5j~ , .~ I 35 - \.._,~ r \1 ~~ ~.'-;::;; ~-t~YI'~~ , ~~~ ~~ 1 ~ t 1~ \ :\\ \IJ ,,- ~~ J~ ~~':J/_ll . 1 l ~~ ~ ~ c.. '-1!'\~C~ J"~'U\ '~~I 'i\ ~ ,,=,,'~ ~(. ~lf "'" ~J(~;:'~'~~ ~"'~ ~W(lfE"~~ ~ ". ,~Ia~ ~ ~))J,~~~ ~ t --\~{h~~ ~., ~,!'J~~\~ -\~ '. ...~ 1~ ,C?V}~"~~-'lI~:"~~~ ~~.~ . ~~~~rf~~r~~~ r~', .~ 40~~~~~~//I 'A~~~-, '~~\~j~~ ~~ v}._ ~'\S/~~://r., \' ~~/ ~..-:s ~ ~ I......... ~ ,~:,.,35 r \, J:,//"'a; 5~ ";:: ,<- ......."-" I~ -..... I~ " ~ il:-3JJ -I. ~ ,~! ~JS'~ ~~\'1I;.z t;:. h.\.\.~\ r~ LJ\.~v?AB~DEn~~ j) ~~ _ (~J~~ ~~)5 :<~;~'dr~ ~- \.)'~~ ~ /25 ~25_:::::~(~~~v,~(\ C fS ~~'/~~~!->"{ L --..A:. 40/ l t- . C E NT/"\. """ IF <:: 'I " Ji C2J.=:' /"'.. ~ !'>-2O (; ?'I"" -:y, .' ~r-~~. Ie 25- \ ~ 'r~~~~,I-i '""~:-~ -~~"<~"' rl/~~ '7 tO~'YAKI o ~~;.',' - ~ ('(rs-~_..;~~. ~~~. "-" / HI" 311; ..~\~' '!~I\~~ ~~~"'~~;J~~~~["""--~ 2031' 1 c:: ,~ _~~~~ M~ -45~,r~ 1'/ 1 J'::' ~~~~e.)~...J'~J~H ;;(' '~,.( e-=-}", 55 .,..1:{ ~5 ~ In--? ---.; ;- -~ - - -: ~.~" /".?\~ IYJ J~; "\}~5 ~, ::\ .\.:.' d t/ ~P?t. ~i!:iN E '\ ,~ !oil ~\::.. 'rl ~ - to 0 to 20 30 40 \) I w~~ W -. ' (~15 1 I - - ---1 MILES ~ '(N~~\:-0.~~~ I --...e .../"- F"\1U18 25 is~ "~f NOAA ATLAS 2. Volume IX lr ..... Pr~rld by U.s. o.pertment of - 'A" . ISOPlUVIALS (rr 2-YR 24-HR PRECIPlTATI N IN NltioNlOmnoc Ind AtmolphetieA ~imlon TOOHS OF ~ INCH Nltion.' w..thef Service. :~of HydroIocy 1'1 /) II I Prapered tor U.s. o.pertment of . t- , . t.- Soil Con..,..ltlOn Servicl. En - , <<Division 48 ( 47 46 WASHINGTON l 124 123 122 121 III-1-44 FEBRUARY, 1992 = STORMWATER MANAGEMENT MANUAL FOR THE PUGET SOUND BASIN " 491 -~ -~- -,' --:-,,",~l.'~J~ ~"'= ....-J "~ . ~EL I .it'~ ~j" il ~ C ~~ ~ ;........ {{ . JUI,~~ - :.t - - - .A ,rv 7 \ (' )~ ! f L\J~ ;::/1~ ~ / ~ j FRIDAY HARB~, ~ .,PO~{ STANL y \~3 ~ --- ~ ~ ~ ~~ 5Il __ .... >>25 V >JM vd~ ~!~\ NI' II '... 211) .'-. . I\' '\C ~ ~ 'f~"f~'" ~ I ~ ,~;--i- _ _ _ ~ --rTll-K h ~ ~'~~ '" /> 0. '. ~ ( II ~)L~~ 511 ~5!JW>> u~ I ,,( "~~ .......... ~ ~ 'I(( "D~.~ \ ~iJ ~~ ~ K.1F'0i1 ~l ~ \ \ I ~-;,1,~~ i).. ~ . ~'~ii ~ 48 '\ ~,<,. ~::~~f"--''---4 ~\lf' 0,,> \0". ~~"~ 1-;d~ ~ ~l "~, ~ . ",~)Fi; ~ )h0-W;' n .".( ~ r ~~~ ~~~ 1i\))~~(~N " ';:. '" ,<\y ~ ~~' ~ ~/~'~[;~~' ~'\.- It':', ,\ ><- - '(~ .' ___~ t~~\..\ 'is; "'-?~iiT"S't . \:'i-. I IS )/~" ~ -~ I~I 2 ~'5;>'2t ~.;s..?~-" _~~~?t/id#i, ~.~"'"f I I; ~N' _.If "oj,) ?:.~~~. . .I)~, \~~ ~ ~~ . /II, - ~ SEATl\A;.;_,-:::-J5 \,~ \,1 -- '(1,,12 II ,"'\ 5 .~ -" 'I' ~ V-- J ~ ~:m: ".Ii. " '., ~ .' I~ ~~'~l]~J '""~ ~J~'--' J;~':~~,"'~'~~~~J- ~ \.'~ I ~/,f;' .,,/)TACOMA 30'1... ~'...._~ - ' ~~~~~ /~( f II/.]~ ~~, J~-r~~l~;~ I~ ~a;;""'~d:~' / I .~\_ ~.> ~ J~~-~~r2 __ ~ ~ !L ~'- ~ ~ ~.f"~ )~&~ ~ ~, 5OfI~J'..C..(NT '-~ \.. '1...- - . l)af;"m ~~ ( , ". '~ 'C;;;" , . . ,. "'...... f ~. "" fl -......_Io,l \, '?........~ '. . - 9.)1 ,..., ~ 'f ~ .y 4~ , ..Mn~. ,\ :\ ~) '--:.\....2i. -"",-' c . A- \ (\. (\... 40J ~ A.2 ~ ) ~ '--zlj :..--:r.tl') J V\J r~~Jr :~.:::i)r;-l)' / ~~ UI ~ ~~ 1\- .- ~'5 ./ 1 ~ 5050'\ .~ (..........~~lli ~rzL 25 I ~P1i<~\..:. "'l{ ~~~~1.J AtlMS 2ll~ 35K.If~JJ '7)1, -10 UV, . \\.....'- I ,~-='~ ~ ~/ =- 70(L-! 60 r7 '^'~ \L= ' - ~ 21L....._ WASHINGTON :Q~"-'----.d II\~ \ -I ~)V ~ L...J B~ 30 40 \ ~ '- [(,.<iJi~ ~ il~~. _, GOLDi:~ '~ '~O ----! MILES It,V 1ft :A,~ · SALM~......,/if e::::::::: 30 VAN () ~ If.., 1&15' - -<_~...J ... ficure27 .:.. ~~~~u-AA ATlAS 2. '1o/ume IX Jr ~~ ~red by U.s. ~ ot I lSOPlUVlALS >f l().YR 24-HR PRECIPlTHION NatioNJOc..nlClndAtmcnphofiCA - . IN TENTHS Of AN INCH \ National Wtttn., Serviel, OfficI ot ydroIocy -"L 0 I I PTtQertcl for U.s. o.partment ot I. ::> , ! So,I ConurvlllOn Serv,c.. Enein.., e ~ivision 124 123 122 121 I I 47 46 -' , 124 123 122 121 III-1-45 FEBRUARY, 1992 = STORMWATER MANAGEMENT MANUAL FOR THE PUGET SOUND BASIN = ( 49' ~_____.--n5~4 ~__lQanmlM"K ..~. -- lM$~ " 45--~' .......~. \" \ fIl. ~lJ I;;. ,,\ ~ '-; _ ~~' /, z..>:\----) "'I~~ E.l " 40---... ~ 1 ~ 5) &. U -' ;" "~S ~. :;, ~ -:l.~J . '1-1' fliift ~ ~'(\rJ) 40 , q -: '" \ II' ~ "". " ,'~~ .'/AI \ \ \ . \ \ l./155'V~\~ ~~ ~<{I ~~~4lYV .......... ..C., "" ~" -'0" S,,"~\ ~"'='~~ ,I B ~"'~~~~~-s: )2"'; '-. ) 1 10 / \ Iff ~':,!.'!1.10?" ,;:iI-'<~"~ ~~ ; -,_ ~L l- I -111 "~~ (,,~-~\,\~~Qj'~~I~ ~~~~ i ':l,'~~~. - - ~ ~ J 'l: ='- , '-7V~,/ ,'9-' ,:,,' "'-it ~'lt~ I I" '@ ~)Il'< 10= '", l _ '-:: ,,~~ '- tflJ" ~ ,,,-0'(\\ 48\ ] )11:; l' ," ,e. . . '" > ,. '- \ 15 ~'~<D\~~T ~~. - -I~ ~~ ~~~' \.\ ) ~,~ ~~I ;,;, 'e If. \ as-.!: C,...,f" '- , \. '- ill' 0- ~ \ 90' 1 v.' ';;;' ~, ~" ~. - A '" ' '~ ,~:;,vli' ~~~' ~ ,}ij, '. . ~ 1~'4~"~1.~Ji I. ~' \ I ~~ 11.", VA,,:!/ Apr '~\S';,c~ ~ ~""'~1. if~ .,VI ~~ ~ \ Ia~~,\~~r- J': "'~" ~,^-=:.?3;l_ O!:,:/'!_ - ( 47i ~,\-,~~~ ~~! rl I J. !Sj ~ "~"'-r''I.' ~~ I ,~-~ '~ , , " ,,~ ,)W '" \ J\\ r;::;,,-,", V . l .~. ABEISlE ~ It I,.f ~ ~.,l \ /.iA. -,,--,,-:j \ \ \ 1 (11 V \. ~<.:: ~l 65 I GO r/\ 'rv In.1 -"'" \4 1~ \ \t( _ __~ ~Ur VJ ~rr:::;:::.. ,J'f(~1< ) ~/(\((. i5r{)>~ ~1 1) C'S~ J"""" ~ ~t:...t- I::>~ ,-. , 1\J ;_5~V~ "'" I~ IS ~ ;';;//:20 I ,.~1ltE lRM - )J~j ~ . ...- \ ' qr, 5 1 ~ ,\ ! ') '? I" ,. ~ - 0 ' , If' ,'h \ "1-, '- ~" ^ - 'T) 1. .,,, \ 110 ~~ -o!""'~ -, - '2 W' J . 1~~'~) . .~B~~~)lrts-'" ! ~ ~ iI\ __".1( .7,..[~"'~v'!-''',~ · . ) 55, ~ ~~:W~6~tJ~.,T<..: ~r~ fl~~-::- f" : &5(' ~~/A ~ \ ~H::-" lil (\ ~ ~ ~D~M-Cv-30 15.. &0 55 ~q: Pf~ (('1~ _ L/'tdy'/' ~ ~ i '\; ~o" -_~. I ~ 5 r-;r....... ~rT ~ '> ---15-.:::---- \ ~~~~t'~ " C c.. \ \[\50) 4~ ' ;;}2lCKll ~~ ~ ~!, It() :)~t1 r'\,f~~~EN E \ "" "" 1\ A. ,.... ~. J\ y: ~.{:.~~ 7 '\."""l,1 ,,~j;;[f~.i - ...,/:0 .~ '---- Figure 30 ~ I ~~~ NOAA ATlAS 2. Volume IX T 50 u. 60 is Preparld by U.s. Oeper'lrMfIt of c:dnrn<<c' lSOPlUVlALS F lOO-YR 24-HR PRECIPIT4T10N ~ Nltionll OctlnlClnd AtrnMptltriCAldtldoM.llon IN TU{THS OF N INCH \ \ NallOna' wutner Servic., OffIC. OfEYdrOIoCY A _ ,., Prtl>8rtd fOt' U.s. Department of A - u/tIn. ~. . t.- Sod ConservatIOn ServICe, Enain'" a OiviUln :. ~ 124 123 122 12 124 123 122 121 46 WASHINGTON 10 0 10 20 30 40 t ~ ----i ~ MILES l } .,J FEBRUARY, 1992 III-1-46 ~ .""""""..... Hl\IIJG- MA1f1lAL poR T!llI puG&'f ~ .....IN T....1II-t.6 H"~ Soil ~ eo. ~ ia .. .. s--'''' - Soil Type . HyctsoioP Soil Soil TypO ,-," .0 H~ Soil - -.... -~ QtoaII 0IGIlIf ApIW e ~ c Aba - -, B eu....- Nt> ~ e {)abob Nt> ~ e ~ - 0 ~~ a t)i,ek Nt> ~ BwCeIl B J)imI1 0 ,...,. B I)upClI& 0 BakIliJl B l ~ C ~ e ~ c ~ B Eld B BeaUIiIo B awen B Be1ful e ~ B ~ 0 BverMt It. ~--- e s.,.,... 0 BoiItfoct B Gatv1a D BO't 0 Gctd*l . It. JkiIeCl' 0 GiteS B ~y e QoMreY 0 BuIlbr B ~ It. Cap1 C G<<OYO s: CarbIlOCI Nt> }IatIUDe C CaaY . Nt> }{atUIil - ~' ~ .C Hob CalbcUt B Hoko -~ Nt> ~ B H()OCbpOIt Nt> ~ , B HOOJdal C OtcI8w It. Hoypua Nt> c-1IlICbU B Huet Nt> C1aDua c JDdiaDD1a Nt> OaJ'Oll B Jooaa B coaaW ~ variab- JUJIlPO Nt> ~ - eft> )CaIaIodl c :I" e ~ - }(aIuJa C JlAdOIl D JCi)chis e tt.cpublic B lGtIIlP e ~ variablll IQaua Nt> tlobet c 1Qoae - Nt> Saia1 .Ii .- C ...... C Sa1bIDl .. -:l >>"'; .~' B LcbuD . B Sa~ '! :0 0 t.umrIIi Nt> SaD JUd :.~ - Nt> LyuawoocI Nt> Scalllflllll - D LywWr - NO SchoCider " B Mal C SeeP D M"Y B Sekiu Nt> MaJbd B Se~ D MayW'flO C SbakU 0 M<;~ 0 ShaDO B McMUldY Nt> SbckoO C MdbcJlII1Il' B 5i C M.-l Nt> SiDl:Wr C }dixdIll ~ variIb)e S~ 0 MolIoG B SkYtoaIbb B MukiIIeO CIt> saaboPitb NO Naif B 5pabocDi1b - D NIIJU It. SolduC B NaUoaU 1 NO ~~.: ~ NeilIDG It. . FEBRUARY, 1992 I 1 l ~ 111-1-9 ,.", STORMWATER MANAGEMENT HAlfUAL FOR THE PUGET SOUND BASIN Table III-1.3 (Published by SCS in 1982) SCS ..etern Wa.hinqton Runoff CUrve Number. Runoff curve number. for selected agricultural, suburban and urban ( land u.e for 'fvt)e 1A rainfall dietribution, 24-hour storm duration. LAND USE DESCRIPTION CURVE NUHBERS BY HYDROLOGIC SOIL GROUP A B C D CUltivated land(l): winter condition 86 91 94 9S Mountain open areas: low growing brush & grasslands 74 82 89 92 Meadow or pasture: 6S 78 85 89 Wood or forest land: undisturbed 42 64 76 81 Wood or forest land: young second growth or brush S5 72 81 86 Orchard: with cover crop 81 88 92 94 Open spaces, lawns, parks, golf courses, cemeteries, landscaping. B Good condition: grass cover on ~75\ of the 68 80 86 area Fair condition: grass cover on 50-75\ of 77 85 90 92 the area Gravel roads & parking lots: 76 85 89 91 Dirt roads & parking lots: - 72 82 87- -89 Impervious surfaces, pavement, roofs etc. 98 98 98 98 Open water bodies: lakes, wetlands, ponds etc. 100 100 100 100 Single family residential(2): Dwelling Unit/Gross Acre \Impervious (3) Separate curve number 1.0 DU/GA 15 shall be selected for 1. 5 DU/GA 20 pervious & impervious 2.0 DU/GA 25 portions of the site 2.5 DU/GA 30 or basin 3.0 DU/GA 34 3.S DU/GA 38 4.0 DU/GA 42 4.S DU/GA 46 5.0 DU/GA 48 5.5 DU/GA 50 6.0 DU/GA 52 6.5 DU/GA 54 7.0 DU/GA 56 PUD's, condos, apartments, 'impervious commercial businesses & DlUst be industrial area. computed ( (1 ) (2) (3) For a more detailed description of agricultural land use curve numbers refer to National Engineering Handbook, Sec. 4, Hydrology, Chapter 9, August 1972. Assumes roof and driveway runoff is directed into street/storm system. The remaining pervious areas (lawn) are considered to be in good condition for these curve numbers. l III-l-12 FEBRUARY, 1992 File ~Input = [-] Hydrograph Basin ID: D6mo Storage Discharge Input Basin Data LPool proj: 97312 Description. DEV 6MO/24HR PAVEMENT ONLY --Area-- Perv. . 0 000 -CN-- o 00 Imperv: 1 653 98.00 Hyd Time Int 10.0 Get Prev I Next Delet~ Insert I ---TC--- o 000 Rain Type I TYPE1A 1....1 Precip 1 48 I Base Q o 00 Method. . . . . : SBUH 1....1 Peak Fact 484.0 Duration 24.0 Values 8.000 0.48 7563 0.174 hr cfs cf acft PTC 6.000 ITC ~elp Select from a list of available reaches Abstract Coeff 0.20 I I Ok Summary Peak Time: Peak Flow: Total Vol: I Compute I ............................ .. .............. ..................................... ........ ..... ... .. .. ........................ .. ............................. ..........................."........ N.. ..-:-:.:.:.:-:-:.:.:........-:.:.:-:.::.:.:~~~=:::::::::::::::-:;:;:;:;:;:;:;:::::"':':-:':~~::::;::::=:=::~::::::~:~:::::':':':':':':-:-:-:':W:':':':':-:-:':':":~~~~~~~~~~~~~~~f::~:~'::':.::ttt;:~:~~:~:~:~~:f:~:?~:?f:~:~:f:tt~~~t:~:~:~=::~=:::~::':':::::':::~f:;:~~~~~f:~~f:~~r:~;~;~~~~~~:~' ';':"'::+:3~:::~t~:~t~:~t~~:~~::::::~::~::::::::::.:.:...:.:......... .:;;:=;:~~::~~~..-:t::'::::~.;..~:~:~::<..~:~~:~:~~:~::~~:=:::::=:=:=:::=:=:=:=:=:=:::=:=:::::::=:::=::~~~~~~~;:~~::~~f::::::::~:::::::~~~~~:~:~~:~~~~~~t~~~~~~~~t~~~~~~:~~~~~~:::..:.;.;.;.;.;.:...;..::~~~~~~~~~~~~~~~:tt;~::.:...... File ~Input =[-] Hydrograph Basin ID: D2 Storage Discharge Input Basin Data LPool proj: 97312 Description..:DEV 2YR/24HR - PAVEMENT ONLY - -Area-- Perv .. 0 000 -CN- - o 00 Imperv. 1.653 98.00 Hyd Time Int: 10.0 Get -I Prev I I Next ~elete~ Insert I ---TC--- 0.000 Rain Type I TYPE1A 1....1 Precip 2 20 I Base Q 0.00 Method ... SBUH 1....1 Peak Fact 484 0 Duration 24.0 Values 8.000 0.74 11837 o 272 hr cfs cf acft PTC 6.000 ITC tel p: Compute 'the"'Hydrograph"'Sumrnary vai"ues........................................................................................................ Abstract Coeff: 0.20 Ok Summary Peak Time: Peak Flow: Total Vol I Compute I File ~Input F=[.] Hydrograph Storage Discharge Input Basin Data LPool proj: 97312 Basin ID DIO Description .:DEV 10YR/24HR .r. Imperv 2.085 98 00 6 000 ITC Rain Type I TYPE lA 1-.1 Precip . 3.00 Base Q o 00 Method. . .. . SBUH 1-" Peak Fact 484.0 Duration 24.0 --Area-- Perv..: 0 871 -CN-- 90 00 ---TC--- 6 000 PTC Hyd Time Int. 10.0 Abstract Coeff 0.20 Summary Peak Time: Peak Flow: Total Vol: Values 8.000 1.69 27225 0.625 hr cfs cf acft Ge t ___ Prev I Ok . Next I Compute I Insert 1'- Delete ... ... ......................... ............................ . .. .... ......... .............. ...... .~.... ............................................ ..... ............................................... . ~:~~~~~:. ~-:-:... .:-:-:.;-:-:-:-:-:1~~~~t~J:~~:~:~~:~tt~. ..-:.;-:.;~-:.:::::~~~~~~~~t~~~~~~t~~~t~~tt:~:~:~:~ "-:':':':':':':':':':':':':'n~'~:~:~:::.:~:' .:-:-:.::::=:::=:=:;::~~~j~~~~~~tmttr~~.~.::..:-:<<=::::m~::=t~m~~:~:~:~mt:-:~:::::::: ..-:.,:::.::::::::::::~:.::::: -:::::::::::~:::".::::::::{~~:::::::::::::.:.:.::;:.:::::::::::::::X::~+:=?~:~fflffl:.:.:::::::.::::ffl~~~.;.:~~:~:~~~~~~~~::::::::::::::~<<<<-::::::::::::::::::::::.:.:::.:.:.:.::~*:fflW:.::;<<?*:~~::*:~~~~:*~~:::::::ffl~~:~:::::::. :.:.:.:.......:.:.:.:....... ..:.:.:.:.:.:.:............. ..:.:.:.:.:.....................:.:.:.:.:..-... ....... ..:-t.:.:.:.: :.:.:... .........:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.... :.::..:::::::: ::':':'~':-:':':':':.:.:':.:':':-:':':':'....::' qelp' Select from a list of available reaches File ~Input =[.] Hydrograph Storage Discharge Input Basin Data LPool proj: 97312 Basin ID: DI00 Description. ..DEV 100YR!24HR --Area-- -CN- - ---TC--- Rain Type Method. . . . Perv.. . 0.871 90 00 6.000 PTC I TY~EIA 1-.. SBUH 1-.1 Preclp Peak Fact Imperv' 2.085 98.00 6.000 ITC . 4.20 484.0 Base Q Duration Hyd Time Int 10 0 Abstract Coeff: 0.20 0.00 24.0 Summary Values Get . Prev I Ok I Peak Time:. 8.000 hr Peak Flow: 2.46 cfs Next I Compute I Total Vol' 39837 cf 0.915 acft Delete I Insert I Ielp: Select from a list 'of"avaii"abie reaches............. ................................ ......................... .......... ;/ --.--". '= STORHWATBR MAHAGBHBlfT kAHuAL FOR THE POGBT SOUND BASIN " PIGURB III-I.l 'Volume COrr.ctio~ "_<:tor to be AWlied to StreUlb&nk Kro.ion COntrol BlIP. Ba8ed on Site ImperViOU8 COVer -;; 50 45 " 40 ~ ~% u ~ 35 ~ 30 ~ .- I 25 20 .; 15 10 0 20 40 80 80 100 .~ SITE IIoPERIIIOUS COVER 00 -,./ III-1-3 FEBRUARY, 1992 ., BUSH, ROED & HITCHINGS, INC. CIVIL ENGINEERS & LAND SURVEYORS e "ZOO9 Minor Avenue East ~ Seattle, WA 98102 -- (206) 323-4144 BRH (206) 323-7135. Fax JOB :ffq'l ~ ,'1.. 0, y' e.\"", \2, +~ A ~ ~ SHEET NO. OF CALCULATED BY ~A\- DATE \0 - '2. a; -q b CHECKED BY DATE SCALE .~Y'f~Jrr(p..jr\9~.T{~~~~ <; \ ';. ,-. j ......................r~....~~S.~..C~m.j..p.I(!4tQ...t.~.t;O~ ((^.-k.........(....~..e..t.......~+~.~.~.~.....,.+~.S.j...Lt;.)........ , ..' .;......'1../..5. M.~..2:.~.......(~.o (~t..._..?~.:,..(...~-.............~............b~.....I~..'11.........~..~..Zl...~..~....~..~r.........u cJ eS.\'j,","p(.~~~l~-\-~g~_f~ -km(5Qo/QV0~ ~~r~J~ ~ .o}-; ~l'~l=~ ~~:~[:~:::~,ILti;:1~r=t~b~1~:;~il~f,~~~:I:;n: .u_..........;.......m....:... II ......~.~.<.l.: +[~,-h hdl,c:>Q~'" <f.::!Pr":": .J... 4-~,y,Q"'r~: ..n.. . ................ .,..... .....e1:3>i~f~;J/;.I~.:~{;,iTi~:;4"'p)~.i;n7~I;;f':t/-?J~~~/st.... ->,.~.,.i<o5.jIt~;h1;iorI$p3.... Sfi"'~k~'d. ~............ ,...........~.....A.c:k\................~.o ({...f4..~..f;u.J=....,.....~.~...--b?c._.... Gf:..........:..~.:.9...~~.\.~pJ2<)I..~...o..;.s...... U).Y ~ ; ._Q~.:.......:....~..~~.~.(~...........n:r.......I.~....1....... -t......4~...<.r~.~...d.fi..~.~...:....~-k~....... - ~....~....o~ ~f;>'O X t,~e = Jj'5Q~f' r ~~' d , ..I~~~lk4.t~o\oS S~(:G.<.Q.Wt>y,'~~~~ . TO' w. c5i[........)<. fE/V. 1"'"'~;m"::tll5005f' ~ PROIlUCT204-1 (Si>llo_I~l (PUlldJ 1-1.",-_ -......Il1m. ToOnllrPlOETOllfllfi 1-<<Xl-225-QIO _ ~,Flle Hydrograph ~~torage Dlscnarge .Bush, Roed & Hi t chings , Inc:. WaterWorks- Release 4 12g Trapezoidal Vauit Input Dialog Input 1~] Trapeziodal Vault Id TRENCH Description' INFILTRATION TRENCH Length 100 000 0 H.1V 0 Width 10 000 0 H 1V 0 Infiltration Rate 1.500 min/in Starting Elev 344 000 ft Max Elev of Vault 347.000 ft Stage-Sto increment 0.100 ft L1>ool H 1V H 1V ?e.rc. (" ().~ Structure Vol. 3000 0 cf o 069 acft Get Next Prey . Insert. . I Delete I Ok I . Cancel Hydro9.!aph Storage ~Discharge LPool .Bush, Roed & Hitchings, Inc..... :WaterWorks- Release 4.12g.;...... [.] Riser Input Dialog Help Enter 8 char Storage ID = File InF.~t Orifice Id: OVERFLOW Descrip 12"TEE Riser Diameter .... Weir Coefficient . Orifice Coefficient. 12.000 in 9 739 3 782 347 000 ft 347 000 ft 0 100 ft Riser Elevation Maximum Elevation Stage Disch Increm. Get . Prey . Next. Insert. Delete. Ok . . Cancel v..:. Ielp Enter 8 char Storage ID .t-'roJ ~/j12 'r proj 97312 .':::: Inp'~.~.........Hydro9"raph Storage Discharge ~LPool . ........ .Bush, Roed & Hitchings, Inc:::::::::::::':'::::, Display Level Pool Results proJ. ~ IJl2 ~ == ~ File '[[.] _pescription .~O YEAR 100 YEAR ,.", Match Peak Inflow Peak 1 69 2 .46 Storage ID TRBNCH TRENCH Disch ID OVERFLOW OVERFLOW Peak Stage 345,04 346.53 Peak Volume 1040 2528 Peak Out 1.14 1.44 c:!(.p~ '(" 0 c.l~ " 0 \ d ~ :. -= SG\-S,04 ~O o~ <So II - -S 44-,00 ':: I "2... \\ "2, U> cJe~t\A {e6~" Ok I .......................................... .y",............................ . ... ........ ~~- ~j o~UL-Ul-8tl W~O U4:44 PM KL~lNt~LO~K tAX NU. 4~bb~~4~Ul p, Ul/U4 ,.", m kLEI NfELDER 2405 -14Oth Avenue Northeast, Suite A101 Bellevue, WA 98005 Transmittal Cover Sheet Original CWiIl r2IWlII not follow DATE: July 1, 1998 FROM: Mr. Wayne Miller Mulvanny Partnership Gary D. Beckham KJeinfelder, Inc. PHONE: FAX: FILE NO. 60-1742-02 PHONE: FAX: (206) 441-8372 (206) 562-4200 (206) 562-4201 TO: RE: Rite Aid Store #5286, Infiltration Tests cc: Mr. Brent CummingE, 8RH Enginccro, Fax (208) 323-7135 Number of pages including cover sheet:4 Message: Enclosed please find the results of out infiltration tests for the stonn water system at the above property. According to our test rcsul~ it is our opinion that the southern portion of the property south-adjacent to the south driveway is suitable for the discharge of storm water, The soil types tested are the sandy gravel and gravcIly sand which arc present below a depth of 4 feet at the location ofPecc-1 and 1.3 feet at the location of Pecc-2. The infiltration area should be completed in these units and not in less permeable soils if possible. Locations of excavations for Perc-1 and Perc-2 are shown on the attached map. At your request we observed conditions in the shed in the southwest portion of the site and noted well casing and other equipment suggesting past use as a well house. Also note that capped well casing was observed in the planter at the southwest comer of the church building and that the Jocked shed west of the residence in the southeast portion of the site is a well house according to the resident at the east-adjacent property. fa.xwr.doc ~JUL-01-98 WED 04:44 PM KLEINFELDER FAX NO. 4255624201 P. 02/04 --.....-. -- III KI flNfFlOER PERCOLATION TEST DATA FORi"I PercolatIon t~s: Location fro,ovrI Dry,. -AJ .51i.'If'O ~,"h-; Sf/,.., AJc (jR 507) (J.J_P,~II?~. Test hole nUIi'b~r ~ -I Depth [0 bottom of hole bD inches. Diameter of hol~ to inches D~D{h. inchec; Soil texture D -- I-(- I.f - lf~ Ij,/-/;,O A I - 'I S&Y allf4 I/:)I:) ..so, , Pk. 8fTN"" So...Jy l..r. 8Y011JV\ SaJ7 - L~~t=! ~a~ - MYf-J. f:PrrSe ~"'''rJP , - !)po1$-e , Percolation test by ti/. 5. Lew~ Date of test 7/l'J I /9'3" . Percola- tion rate, minu tes rinch 1{emarks Time Time I merval, minutes Measure~ ment, inches Drop in water level, inches o J Percolation rate= 1.5"0 minutes per inch. UVI- V.I. VV "LoU V-' -,'"' III n.L..Lo.l.lU 1... L..U &...&\. . . a 1 &la I'V_ ,I-",",,,,",VL,.'I-V.I. I _ \.Ivl \.I, ,.", III klEINFElOER PERCOLATION TEST DATA FOR"I Percola~:on t~s~ location r~ !I,Y-c!",4,:/ Sofb.-e / S R 5"07 A.v/ dAMe.:1 IJ"" Test hol~ nur.-ber p.p~1" '2- Depth to bot:o~ of r.ol~ 0/-8" inches Diameter of noh,:~inches. Depth. ir.ch~s Soil rc:'(tut"~ 0-1 ~ --It;:, Ib - 0/8' Sod ~ aofJ -rc,,D~~tO,' I -- ~ uQ , B ~WH SttJy ~~ ~ MrJ /)e...~ l-t-. B~wlIt t9".,,~llv SdI..,d) / . Percolation test by UI. S. ~w r.,S Date of test 7 / () f / efei Time Time Interval, minutes Measure- ment, inches Drop in water level. inches Percola- tion rate, minutes Remarks I 7- ';.J.. _.J Percolation ratelilK O. (,3 minutes per inch. JUI.. V! ;)V PU...V U'I' 'I.) III I\Ll:.U\1 LLI.'LI~ I' OJ\ nv. 'ILJ~UL'ILU I r U/l/ UIl ,.", 6 ~S ',y. [~ 'S I ~ ~ 0,> , . '-- ~ I I I ~ I ~ I I I ~I I I ' .--- -.. I: ~ ~ '" ;--- , . ~rAIL SFAC,c ! I , ~ "'j " , ~ T B! i- '. ~ -~ . .. I~ .~ i I~ C'. ~. :c.z- !lJr I ~ I I c= ~ i <? , r-- - , ~I I I ~. , -c;" , D ~ PA~<" ~R2- 16.-,c 9 ~ ~~~ ~Y-C P~3"" ;Jf$r~ "-" ~4 ~T~ ~ ~ ~7'\_ ~ ~ fO':'A. S7 ---. ~)i. ~~ ~ -.J . J 1"0 '2 , ~ (k-2- ~ l3-7.p,..~) ~A~ - YELM ~ ,--;& HOflnt --. o 50' ~O' ::2~' 2~ ? ~,c;\L~c. ' . b '= V. PIPE SIZING CALCULA nONS . . ,.", 2/98 .sTORM SEWER SlMIARY REPORT PAGE 1 OF 1 25-year Conveyance Calculation FILE 97312 STM AINFALL FILE CHARTl RND 25 YEAR DESIGN STORM I = 11 020/ ( Tc + 3 250) . o 660 LINE ID FLOW RATE INFO PIPE INFO HYDRAULIC INFO [NE#I DESCRIPTION IINC ARIRUNOFFCIINLTIMEIINLT IIINC CIAI INPUTQ IUNIFORMISIZE/IINVERT IPIPE 1 NVAL IHGLSLOPEIHYD GRD r VEL I DOWNLINE# ITOT ARIWEIGHTDI Tc ITOTL IITOT CIAI TOTALQ IFLOWCAPITYPE IUP/DOWN ILEN I INVSlOP I JLC IUP/DOWN IUP/DOWN 1 1 (ac) I C 1 (min) I (in/h) I (cfs) I (cfs) I (cfs) I(in) 1 (ft) I (ft) I (ft/ft) I (fUft) I (ft) I (ft/s) I I I I I I I I I I I I I I 1 I O/W SEP-CB#3 o 71 o 901 o 001 5 061 3 031 o 001 I 12DI 346 001 81 o 0121 o 0631 346 431 11 40 I DNLN = 0 2 11 o 901 10 301 1 911 3 651 3 651 9 61 12DI 345 501 I o 0631 1 00 1 345 931 11 40 I I I I I I I I I I I I I I 2 1 CB#3-CB#4 o 21 o 901 o 001 5 061 o 921 o 001 I 12DI 347 001 1881 o 0121 o 0011 348 611 146 I DNLN = 1 o 61 o 901 8 11\ 2 221 1 151 1 151 2 81 12DI 346 001 I o 0051 1 00 I 348 451 1 46 I 1 I I I I I I I I I I I I 3 I CB#4-CB#5 o 21 o 901 o 001 5 061 o 781 o 001 I 12DI 348 201 1111 o 0121 o 0011 348 711 1 97 I DNLN = 2 o 41 o 901 6 901 2 391 o 801 o 801 4 01 12DI 347 001 I o 0111 1 00 I 348 651 1 02 I I I I I I I I I I I I I I 4 I CB#5-CB#6 o 21 o 901 6 001 2 541 o 461 o 001 I 12DI 349 40 I 941 o 0121 o 0111 349 781 2 46 I DNLN = 3 o 21 o 901 6 001 2 541 o 461 o 461 4 41 12DI 348 20 I I o 0131 1 00 I 348 771 o 98 -I 1 I I I I I I I I I I I I s I CB#3-CB#7 o 11 o 901 o 001 5 061 o 451 o 001 I 12DI 347 60 I 1841 o 0121 o 0021 348 801 2 15 1 DNLN = 1 o 81 o 901 7 531 2 291 1 691 1 691 3 61 12DI 346 001 I o 0091 1 00 I 348 451 2 15 I I I I I I I I I I I I I I 6 I CB#7-CB#8 o 31 o 901 o 001 5 061 1 III o 001 I 12DI 348 701 1081 o 0121 o 0021 349 121 3 13 I DNLN = 5 o 41 o 901 6 701 2 421 o 981 o 981 3 91 12DI 347 601 I o 0101 1 00 1 348 871 1 24 I I I I I I I I 1 I I 1 I I 7 I CB#8-CB#9 o 21 o 901 6 001 2 541 o 441 o 001 I 12DI 349 60 I 711 o 0121 o 0101 349 971 2 43 I DNLN = 6 o 21 o 901 6 001 2 541 o 441 o 441 4 31 12DI 348 701 1 o 0131 1 00 I 349 271 o 95 -I I I I 1 I I I I I I I I I 8 I CB#7-CB#10 o 31 o 901 6 001 2 541 o 611 o 001 I 12DI 349 351 1311 o 0121 o 0071 349 791 2 69 I DNLN = 5 o 31 o 901 6 001 2 541 o 611 o 611 4 41 12DI 347 601 I o 0131 1 00 I 348 871 o 78 ;-1 . . VI. SPECIAL REPORTS AND STUDIES \ ~j ---- ,j } I '1 ! -,' '-- o ~ ( COVER No. 57-2-342P 2,540 Ibs. BASE ASSEMBLY No. sn-cps 7.700 Ibs. r- = 577-CPS Oil/WATER SEPARATOR 1,050 sa. FT. - EFFECTIVE COALE$QNG AREA 555 G.P"" -IIAXIIIUII PROCESS FLOW T-ff' OUTlET WEIR INLET PIPE WITH ElBOW BY OTHERS OIL RETAINING BAFFLE mm 6'..()" <: ~ COALESCING MEDIA - INLET WEIR .-I Copyright 1992 UTILITY VAULT CO 124 * ITEMS SHOWN ARE SUBJECT TO CHANGE WITHOUT NOnCE. FOR DETAILS SEE REVERSE SIDE. Issue: April. 1992 ---- ~ "1~~' .. 577-CPS OIU WATER SEPARATOR =: 1,050 SQ. FT . EFFECTIVE COALESCING AREA 555 GPM . MAXIMUM PROCESS FlOW 7'-0. ( ~~~'~'~~~~~~<jotM'~ ~~~/~~~~/~~X/~~'-'~~ /'/'/ '/'/'/'>',/ '/..../../..../""'7'>'/'/'/ ,/ ,/ ,/ ,/ ,/ ,/ ,/ ,/ ,/...; ,/ ,/ ,/..("..;" I /'/'/''/',/ '/'/'>'/'/'/ '/ '/'/'/'/,/ ,/../ ,/../ ...:..(...:../ ,/..( -( ,/..( ..: ,/ ,/" /'>'/'/'/ '/'/ '>'/ '/ '/'/ ',/'/'/'/ '/ ,/ ,/ ,/ / ,/..( /..,./ / / / / / / / / / '/"'/''/ ''/ '/'/ '/'/ ''/ '/'/ '/ '/ '/ '/'/ .."/..'/...: ';: ...:../ ~/ ,;"/ '/ '/'>'/'/'/'/" I /~~~/~/~/~~~/~/>'~/~/~~/~~/ ,~,~,~,~,~,~,~~~~~~~~~~~~~~ ///////////////// """""""'" I ~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~ I /~/~~~/~~/~~~/~~/~/~/~/~/~ ~,~{,~~~~~,~~~~~{.,~,~, ~~~~;~~~~~~~~~~~~~~~~ ~~{~~~~~~S~~~{~S~~~ I /~':(;~~~~~~~~~~~~~~~ <~<~<<<~~~~~~~~{~ I /, '\." ..(,/-(-(.."<--!" ,/, '\. \. .../,/ ',/'>'/'>'/'/"/~'''''''' '/' '\. '/'/' /" ...! ,/ ,/ /'..:'..: .,,/ ~ ,/../ --! ,</ ,/../ '/ '/ '>'/'/ '/ '/ '/ {, {,,~ '/ {, {, '/ ''/'' / ~ ~ ~..( ';:..(..( ..( ,; {, ~ ,,),~ {, ,/..( '/'/ '/ '/'/'/~! 'z '/'/'/'/'/,/ '/'/' I /,~, ....!..(-.!..(-.!" '/' '/'/..(..( "/'z'/" "/ /'/'/'/'/'/'/'/'/,/' ~~'/'~"':;~"':;~~~~'/~~'/'/~{, ~* ~ ~~~~~~~~~~~/~ ,---- ~ PLAN VIEW U.V CO.2-342P DIAMOND PlATE COVERS INFORMATION NEEDED: INlET PIPE SIZE - OUTlET PIPE SIZE- GRADE ELEVATION- INlET INVERT ElEVATION - OUTlET INVERT ELEVATION- - .-- 7 FINISH GRADE EL ~<<<<<<~ ~&'~ .. .,>>~'W OIL RETAINING BAFflE FIBERGLASS HOlD-DOWN CHANNEL INlET I.E. INlET PIPE WITH ELBOW BY OTHERS INLET WEIR COAlESCING MEDIA SECTION AA STRUCTURAL NOTES: 1 CONCRETE: 28 DAY COMPRESSIVE STRENGTH fc = 4500 psi 2. REBAR: ASTM MUS GRADE 60 3. MESH: ASTM A-185 GRADE 85 4. DESIGN: ACl-318-83 BUILDING CODE AS1lA ~ 'MINIMUM STRUCTURAl DESIGN LOADING FOR UNDERGROUND PRECAST CONCRETE UTIUTY STRUCTURES' 5. LOADS: H-20 TRUCK WHEEL wI 30% IMPACT PER AASHTO II: ( " Crj> ~ ~ - OUTlET PIPE WITH SAMPlING TEE BY OTHERS ( o o OUTlET WEIR OUTLET I.E. 9 io 9 ;... ( -<:._:i GENERAL NOTES: 1 All BAFFLElWEIR PlATES TO BE MILD STEEL. GALVANIZED 2. WATER DEPTH = 4'-Q" 3. CONTRACTOR TO: GROUT IN All PIPES SUPPLY & INSTAll INLET & OUTLET PIPES (INCLUDING PIPE ELBOW & SAMPLING TEE) FILL wI CLEAN WATER PRIOR TO .START UP. OF SYSTEM VERIFY All BLOCKOUT SIZES and LOCATIONS 4. REFERENCE U.V.Co. CATALOG MODEL 577-LA BASIC DESIGN INFORMATION: INFLUENT CHARACTERISTICS . OIL SPECIAC GRAVITY =.83 OPERATING TERMERATURE = 45. INflUENT OIL CONCENTRATION = 100 ppm MEAN OIL DROPLET SIZE (MICRONS) = 130 FlOW EFFLUENT RATE QUAUITY 1241 160 GPM ( 10 ppm ~ ~ - BUSH, ROED & HITCHINGS, INe. CIVll... ENGINEERS & LAND SURVEYORS e "1tlO9 Minor Avenue East ~ Seattle, WA 98102 =----" (206) 323-4144 BRH (206) 323-7135. Fax JOB ~'11~ \1.. ,0\ Y~J,- ~;4e. AI d SHEET NO_ OF CALCULATED BY ~A.~ DATE LJ.."Z.4 -q~ CHECKED BY DATE ~rr-;":~~~~1.j.. . Q~u;i\J u'S ~ ~_E.\O~:u.. ............................ ......... .....;.... : . : . - ......~........................ '.._On. .. _"on Vu . :: .: m..~ ~11t~S:..Tl..J.11S~ \=. : . .: . . . . uut, ~u~_:lL5u~o.iJ.\Qu~~u ....... . "_h~ . . \ c:.. I? ....... '~....y.m~.~m..~m. - . on.......;... : : : ; : ; .....\..$..1).0 ......~.A.\...).g.~I .....Js..I().h.~uI~...\~\ mono';'...... .. ..... -~.. .~_ ......u._m... ".." . ...m_h' nom.i_..... ... _m......~mm .....m....... '. ...u....~._.........._.. '_h nomm...'" ommm.""'" --' l'IIOOlJ:121l4-\\SirIllI_11O\-\ \Poilodlr_l.1nt..-'u.a.oU71. T.Illdo<_TOJ.fl\EEHD:l-~ '>:l "' '= ( SANITARY SEWER TABLE 2 - ESTIMATED DAILY&6w~J"LOWS Type of Establishment GalloDa Per huon Per Day (UD1ea 0tbenriH DOted) 5 6S 10 Airports (per passenger) Apartments - multiple family (per residem) Balhhouses and swimming pools Camps. Campground wIth cenual comfon stations With tlush toilets, no showers Construction camps (semi-permanent) Day Camps (no meals served) Resort camps tmght and day) with limited plumbing Luxury camps COltages & small dwellings with seasonal occupaDCy Country clubs (per resident member) Country clubs (per non-resident member presem) Dwellings Boarding houses additional for non-resident boarders Luxurv residences and estates Multiple family dwellings (apanmems) Roommg houses Single family dwellings Factors (gallons per person, per shift, exclusive of industrial wastes) Hospitals (per bed space) Hotels with private baths (2 persons per room) Hotels without private baths Institutions other than hospitals (per bed space) Laundries. self-service (gallons per wash, i.e., per customer Mobile home parks (per space) ~otels with bath. toilet, and kitchen wastes (per bed space) ~Olels (per bed space) Picnic Parks (toilet wastes only) (per picnicker) Picnic parks with balhhouses, showers, and flush toilets Restaurants (toilet and kitchen wastes per patron) Restaurants (kitchen wastes per meal serviced) Restaurants additional for bars and ('.ndrfllil lounges Schools. Boarding Day. without gyms, cafeterias, or showers Day. with gyms, cafeterias, and showers Day. with cafeteria, but without gyms, or showers Service stations (per vehicle served) Swimming pools and bathhouses Thearers. Movie (per auditorium seat) Drive-in (per car space) Travel trailer parks without individual water and sewer hook-ups (per space) Travel trailer parks with individual water and sewer hook-ups (per space) Workers Construction (at semi-permanem camps) Day at schools and offiCe! (per shift) 7/QIIj 7 _ .,C\ L."' 35 15 SO 15 - SO 100 SO 100 SO SO 10 ISO 65 40 75 ffP -i 60 SO 115 SO 2SO SO 40 5 10 10 8 2 100 15 15 20 10 10 5 5 SO 100 SO 15 -<l . ( USE ,. UNION TO caKCT 1'ES11NG NJARA 1US FM PRESSURE TES11NC REDUNDANT OFF FlBERGlASS UD .lH STEEL BClLlS AND NECPRENE c:ASICET ,. OIA.PVC HOSE NfIJ VAl.'tf: ...~ Y ORIENT BAll VJLVE. AS SHOWN 2ft' ... RISER HEJGiT l'rPICAI. .-ni ALL ro.-lRAmC BEARING TANKS lEA'tf: SUff10ENT WIRE TO ALLOW ~ PUIF RDtOVJL ELEClRICAL SPUCE BOX WI1H cam GRIPS ALL CCHEC11CItS SHALL BE IRAPPED YlfTli HEAT SHRINK TAPE 21- OR 248 pvc SlCFE GROUND AWAY FROM RISER RISER W/lJD ,. GAUGE IS'" FROM TOP ~ RISER TO i INSUlA lED CONDlIT TONING WIRE 3/.. EY CONDUIT SEAl ElEClRSCAl CONCUIT POYER SOORCE . (2.. CIA. RIBBED P'fC RISER Mni NECPREJ€ :.a:: TOP RISER 10 t EffUJENT DISCHARGE TtHNG Yl1RE - 1IW' ONCE AROUND RISER . ,... - 2-PART EPOXY .. ,;-r GROO'tf: FCRED IN lHE TOP ~ 1HE TANK ,., - ,. PVC flOAT A~81Y b II) . ", ... '-1/.- DlA. INlET HCUS AROUND PERIWETER ~ VAUlT ~ :I .. OIA. PVC flOW INDUCER . at N DRAIN Parr 'Mnt NEOPRENE FlAP CHEO< THE YATERIAl. FM DUPLEX. TRIPlEX. AND ClASS , OI~sat , ItSTAUA1QS WILL V/tRY. 'THE ~TRACTCR SHALL MEET THE INTENT OF 1HE INSTAlLATION RECUlREWENTS SHOVItI IN niE nPICAL S1tP INSTAlLAnON. SU8t.CERSIBLE EfFLUENT ORENCO nJR8INE a GPU 20 OSI 05 HHf PUMP 11TH s.o. POIER CABLE JWJ , /fi BY-PASS ORIfICE IN lHE OISOiARGE HEAD CI TY OF YELM DEPT OF PUBLIC WORKS TYPICAL SIMPLEX STEP TANK INSTALLATION APPROVED OWG. NO. CITY ENGINEER DES. OWN DATE CKD 7-9 OC7-9.0WC OA 2/20/95 ; -" .- VII. B,\SIN,\NIl coMM'JNrrY l'J>>'l'IING ~S . '() .. " vm. OTHER PERMITS -~ () -, 6 = IX. EROSION/SEDIMENTATION CONTROL DESIGN Q --' I> BUSH, ROED & HITCHINGS, INC. CIVIL ENGINEERS & LAND SURVEYORS ~ 2009 Minor Avenue East ~ Seattle, WA 98102 .......- (206) 323-4144 FAX (206) 323-7135 BRH 1-800-935-0508 JOB ~ ~ '\ ""\ \ '"l... . 0 \ '<~\'- ~;-k A; J .. SHEET NO_ CALCULATED BY ~A. '- OF DATE l.P.. ~ 0 - q a CHECKED BY DATE ~..~..'t.t ..S~~\ ~ -t"""Q~f> ... \)01~\Q ?e~.JQ '-jt",-ry!'2."'3- T{'?'-p y...}?\W Sy(+ ~ ho.." r .p~.~.....~.............f'i~:'.....: I, ~qmt;fS o...A' eo... . ......m................ (SA7).. m'm,"~ .. ..~f,;~mJ{tQ_~ - ~o 6C?m'S~"o.(~~t-f~ .............................~...(1Jc?..~ Q~....7..]I....:~..qf)....I.. ~: 3t5 _Lc.:;m~fmm_,~m' nmmm'._n_...___.l. . . ... ......... ........_..........m_............_.. ....mm....__........;.......... . , , W~,- -:......{gO:,(m(oO.mm . . .. .._...:.._..____~____-.__...m... - : . : : : . . . . ~ .t-rt-. " >mmem_mt2~.;m ~'31,~3~.1 ~ ;; ..- , 1'ROOOCT1ll4-11SilQll_1 ~I (PIIldol) - cr -' .' '" ..., X. BOND QUANTITIES WORK SHEET, RETENTIONIDETENTION FACILITY SUMMARY SHEET AND SKETCH AND DECLARATION OF COVENANT .... (]..l A o "'" XI. MAINTENANCE AND OPERATIONS MANUAL .. .-.-'