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SECTION 4 & 5, TOWNSHIP 29 NORTH, RANGE 5 EAST, W.M.
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<br /> BMP T5.13: POST-CONSTRUCTION SOIL A.THE ORGANIC CONTENT FOR"PRE-APPROVED"AMENDMENT RATES CAN D C M i
<br /> BE MET ONLY USING COMPOST THAT MEETS THE DEFINITION OF
<br /> QUALITY "COMPOSTED MATERIALS"IN WAC 173-350-220.THIS CODE IS AVAILABLE i C O LL)
<br /> ONLINEAT: >Q N III
<br /> THI DISTURBED AREAS. 0 �
<br /> S BMP SHALL BE USED IN THE LANDSCAPED AREAS ON THE SITE AND ANY HTTP://WWW.ECY.WA.GOVFPROGRAMS/SWFA/FACILITIES/350.HTML. L O
<br /> OTHER N N
<br /> COMPOST USED IN BIORETENTION AREAS SHOULD BE STABLE,MATURE o
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<br /> AND DERIVED FROM YARD DEBRIS,WOOD WASTE,OR OTHER ORGANIC «y O m
<br /> PURPOSE AND DEFINITION MATERIALS THAT MEET THE INTENT OF THE ORGANIC SOIL AMENDMENT _N N
<br /> NATURALLY OCCURRING(UNDISTURBED)SOIL AND VEGETATION PROVIDE SPECIFICATION.BIOSOLIDS AND MANURE COMPOSTS CAN BE HIGHER IN U
<br /> SDCB-2A BIO-AVAILABLE PHOSPHORUS THAN COMPOST DERIVED FROM YARD OR
<br /> SDCB-lA IMPORTANT STORMWATER FUNCTIONS INCLUDING:WATER INFILTRATION; >
<br /> STORMFILTER STORMFILTE PLANT WASTE AND THEREFORE ARE NOT ALLOWED IN BIORETENTION
<br /> 27"CARTRID E NUTRIENT,SEDIMENT,AND POLLUTANT ADSORPTION;SEDIMENT AND AREAS DUE TO THE POSSIBILITY OF EXPORTING BID-AVAILABLE
<br /> 18"CARTRID E POLLUTANT BIOFILTRATION;WATER INTERFLOW STORAGE AND TRANSMISSION; w'
<br /> RIM=10.03 PHOSPHORUS IN EFFLUENT. r'+
<br /> RIM=10.22 IE(12"SE)OUT=7.28 AND POLLUTANT DECOMPOSITION.THESE FUNCTIONS ARE LARGELY LOST v
<br /> 15 IE(12"W)OU =7.72 15 15EXISTING GRADE 15 WHEN DEVELOPMENT STRIPS AWAY NATIVE SOIL AND VEGETATION AND REPLACES IT WITH MINIMAI TOPSOIL AND SOD.NOT ONLY ARE THESE THE COMPOST MUST ALSO HAVE AN ORGANIC MATTER CONTENT OF 35%TO
<br /> ..,mEXISTING GRADE IMPORTANT STORMWATER FUNCTIONS LOST,BUT SUCH LANDSCAPES 65%,AND q CARBON TO NITROGEN RATIO BELOW 5:1.
<br /> THEMSELVES BECOME POLLUTION-GENERATING PERVIOUS SURFACES DUE TO THE CARBON TO NITROGEN RATIO MAY BE AS HIGH AS 35:1 FOR PLANTINGS REVISIONS
<br /> FINISH GRADE FI ISH GRADE INCREASED USE OF PESTICIDES,FERTILIZERS AND OTHER LANDSCAPING AND COMPOSED ENTIRELY OF PLANTS NATIVE TO THE PUGET SOUND LOWLANDS
<br /> HOUSEHOLD/INDUSTRIAL CHEMICALS,THE CONCENTRATION OF PET WASTES, REGION.
<br /> 10 10 10 10 AND POLLUTANTS THAT ACCOMPANY ROADSIDE LITTER, (j) (j) 7 Mo M
<br /> 93 LF 12"CPEF \ ESTABLISHING SOIL QUALITY AND DEPTH REGAINS GREATER STORMWATER B.CALCULATED AMENDMENT RATES MAY BE MET THROUGH USE OF cr cr m M.rn
<br /> FUNCTIONS IN THE POST DEVELOPMENT LANDSCAPE,PROVIDES INCREASED COMPOSTED MATERIALS AS DEFINED ABOVE;OR OTHER ORGANIC W m A o
<br /> 110 LF 12" MATERIALS AMENDED TO MEET THE CARBON TO NITROGEN RATIO O
<br /> S=0.005 FT/F CPEP TREATMENT OF POLLUTANTS AND SEDIMENTS THAT RESULT FROM REQUIREMENTS,AND MEETING THE CONTAMINANT STANDARDS OF GRADE W � n
<br /> S_0 - DEVELOPMENT AND HABITATION,AND MINIMIZES THE NEED FOR SOME A COMPOST. Z W o o
<br /> 5 5 5 021 T/FT 5 LANDSCAPING CHEMICALS,THUS REDUCING POLLUTION THROUGH /rto in
<br /> O TFALL IE 7.26' PREVENTION. V
<br /> THE RESULTING SOIL SHOULD BE CONDUCIVE TO THE TYPE OF VEGETATION
<br /> APPLICATIONS AND LIMITATIONS TO BE ESTABLISHED. Z X
<br /> OUTFALL IE 5.00' ESTABLISHING A MINIMUM SOIL QUALITY AND DEPTH IS NOT THE SAME AS IMPLEMENTATION OPTIONS:THE SOIL QUALITY DESIGN GUIDELINES LISTED W (n LL
<br /> PRESERVATION OF NATURALLY OCCURRING SOIL AND VEGETATION.HOWEVER, ABOVE CAN BE MET BY USING ONE OF THE METHODS LISTED BELOW.
<br /> 0 0 0 0 ESTABLISHING A MINIMUM SOIL QUALITY AND DEPTH WILL PROVIDE IMPROVED 1.LEAVE UNDISTURBED NATIVE VEGETATION AND SOIL,AND PROTECT FROM
<br /> 0+00 0+30 0+60 0+90 1+20 0+00 0+W 0+60 0+90 1+20 ON-SITE MANAGEMENT OF STORMWATER FLOW AND WATER QUALITY. COMPACTION DURING CONSTRUCTION.
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<br /> STORMFILTER SDCB-1A TO OUTFALL PROFILE STORMFILTER SDCB-2A TO OUTFALL PROFILE SOIL ORGANIC MATTER CAN BE ATTAINED THROUGH NUMEROUS MATERIALS 2.AMEND DISTURBED SOIL ACCORDING TO THE FOLLOWING PROCEDURES:
<br /> SUCH AS COMPOST,COMPOSTED WOODY MATERIAL,BIOSOLIDS,AND FOREST W
<br /> SCALE:H:V=30' SCALE:H:V=30' PRODUCT RESIDUALS.IT IS IMPORTANT THAT THE MATERIALS USED TO MEET A.SCARIFY SUBSOIL TO A DEPTH OF ONE FOOT
<br /> V:1"=5' V:1"=5' THE SOIL QUALITY AND DEPTH BMP BE APPROPRIATE AND BENEFICIAL TO THE B.IN PLANTING BEDS,PLACE THREE INCHES OF COMPOST AND TILL IN TO
<br /> PLANT COVER TO BE ESTABLISHED.LIKEWISE,IT IS IMPORTANT THAT IMPORTED U)
<br /> TOPSOILS IMPROVE SOIL CONDITIONS AND DO NOT HAVE AN EXCESSIVE AN EIGHT-INCH DEPTH.
<br /> C.INTURF AREAS,PLACE TWO INCHES OF COMPOST AND TILL INTO AN f
<br /> PERCENT OF CLAY FINES. EIGHT-INCH DEPTH. W
<br /> D.APPLY TWO TO FOUR INCHES OF ARBORIST WOOD CHIP,COARSE BARK Wm cm
<br /> DESIGN GUIDELINES MULCH,OR COMPOST MULCH TO PLANTING BEDS AFTER FINAL PLANTING. F
<br /> SOIL RETENTION rn LN
<br /> THE DUFF LAYER AND NATIVE TOPSOIL SHOULD BE RETAINED IN AN Z ODALTERNATIVELY,DISTURBED SOIL CAN BE AMENDED A SITE-CUSTOMIZED
<br /> CUSTOMIZED _
<br /> UNDISTURBED STATE TO THE MAXIMUM EXTENT PRACTICABLE.IN ANY AREAS MALULER SO THAT IT MEETS THE SOIL QUALITY CRITERIA
<br /> FA SET FORTH ABOVE, Q�Q
<br /> REQUIRING GRADING REMOVE AND STOCKPILE THE DUFF LAYER AND TOPSOIL AS DETERMINED BY A LICENSED ENGINEER,GEOLOGIST,LANDSCAPE In 3
<br /> ON SITE IN A DESIGNATED,CONTROLLED AREA,NOT ADJACENT TO PUBLIC ARCHITECT,OR OTHER PERSON AS APPROVED BY SNOHOMISH COUNTY. X W
<br /> RESOURCES AND CRITICAL AREAS,TO BE REAPPLIED TO OTHER PORTIONS OF w O O
<br /> STORMFILTER STEEL CATCHBASIN DESIGN NOTES THE SITE WHERE FEASIBLE. G m¢
<br /> 3. STOCKPILE EXISTING TOPSOIL DURING GRADING,AND REPLACE IT PRIOR W Z
<br /> STORMFILTER TREATMENT CAPACITY IS A FUNCTION OF THE CARTRIDGE SELECTION AND THE NUMBER OF CARTRIDGES.1 CARTRIDGE CATCHBASIN
<br /> HAS A MAXIMUM OF ONE CARTRIDGESYSTEM IS SHOWN WITH A 27•CARTRIDGE,AND IS ALSO AVAILABLE WITH AN 1W CARTRIDGE.STORMFIL SOIL QUALITY
<br /> TER TO PLANTING.STOCKPILED TOPSOIL MUST BE AMENDED IF NEEDED TO MEET an O
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<br /> PEAK HYDRA CONFIGURATIONS TABLE BELOW.
<br /> IF
<br /> HEDRY INLET SAY IONS EXCEED PEAK
<br /> ALL AREAS SUBJECT TO CLEARING AND GRADING THAT HAVE NOT BEEN PROCEDURES
<br /> IN METH D(2)ABO REQUIREMENTS BY FOLLOWING THE y
<br /> PEAK HYDRAULIC CAPACITY PER TABLE BELOW.IF THE SITE CONDITIONS EXCEED PEAK HYDRAULIC CAPACITY,AN UPSTREAM BYPASS STRUCTURE IS PROCEDURES N METHOD(2)ABOVE.
<br /> REQUIRED. COVERED BY IMPERVIOUS SURFACE,INCORPORATED INTO A DRAINAGE
<br /> CARTRIDGESELECTION FACILITY OR ENGINEERED AS STRUCTURAL FILL OR SLOPE SHALL,AT PROJECT 4. IMPORT TOPSOIL MIX OF SUFFICIENT ORGANIC CONTENT AND DEPTH TO
<br /> COMPLETION,DEMONSTRATE THE FOLLOWING: EN
<br /> CARTRIDGE HEIGHT iB'DEEP MEET THE ORGANIC MATTER AND DEPTH REQUIREMENTS. TDN
<br /> ACCESS COVER CONCRETE000_AR RECOMMENDED HYDRAULIC DROP(H) s. 2.3' 3.3' \
<br /> AND REBARTOMEET SPECIFIC FLOW RATE(gpMsg 2gpmM 1.er gpNST 1gpMM 2gPMsl 1.5]'gpmM 1gfXNef 2WMat Br g- igpwd 1. ATOP SOIL LAYER WITH A MINIMUM ORGANIC MATTER CONTENT OFTEN MORE THAN ONE METHOD MAY BE USED ON DIFFERENT PORTIONS OF THE °
<br /> HS20IFAPPLICABLEBY CARTRIDGE FLOW RAT11-) 2zs 1e.7g 1tz5 1s lzsa z5 16 7.5 PERCENT DRY WEIGHT IN PLANTING BEDS,AND 5%ORGANIC MATTER
<br /> -- ------ - ---- -- CONTRACTOR SAME SITE.SOIL THAT ALREADY MEETS THE DEPTH AND ORGANIC MATTER
<br /> PEAK HYDRAULIC CAPACITY to 1.o 1.0 CONTENT(BASED ON A LOSS-ON-IGNITION TEST)IN TURF AREAS,AND A PH c
<br /> INLET PERMANENT POOL LEVEL(A) 1'n 1'-0'
<br /> A A OVERALL STRUCT QUALITY STANDARDS,AND IS NOT COMPACTED,DOES NOT NEED TO BE
<br /> -'- ------- -- y RE HEIGHT(B) FROM 6.0 TO 8.0 OR MATCHING THE PH OF THE ORIGINAL UNDISTURBED SOIL. O `
<br /> U 4'-9' 3'S• 4'-S• AMENDED.
<br /> 67gpM SPECIFIC FLOW RATE IS APPROVED W TH PHOWHOSORB (PSORB)MEDIA ONLY THE EXCEPT HEREOIL YER TREE ROLL OTS
<br /> LIAR T MINTHE MUM DEPTH OF OF INCORPORATION
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<br /> EXCEPT WHERE TREE ROOTS LIMIT THE DEPTH OF INCORPORATION OF O
<br /> P 'yw GENRAL NOTES MAINTENANCE q
<br /> 1.CONTECHTOPROVIDEALLMATERIALSUNLESSNOTEDOTHERWISE. AMENDMENTS NEEDED TO MEET THE CRITERIA.SUBSOILS BELOW THE 1.SOIL QUALITY AND DEPTH SHOULD BE ESTABLISHED TOWARD THE END OF PRO AIb
<br /> 2.FOR SITE SPECIFIC DRAWINGSWITH DETAILED STORMFILTERCATCHBASIN STRUCTURE DIMENSIONS AND WEIGHTS,PLEASE CONTACTYOUR TOPSOIL LAYER SHOULD BE SCARIFIED AT LEAST 4 INCHES WITH SOME �I\
<br /> Z
<br /> T s CONTECH ENGINEERED SIN WATER_LC REPRESENTATIVE.x SHALL
<br /> BE IN
<br /> m CONSTRUCTION AND ONCE ESTABLISHED,SHOULD BE PROTECTED FROM
<br /> i�l J'• 3.THIS DRAWING
<br /> CATCHBASIN WATER DUALITY STRUCTURE SHALL BE IN ACCORDANCE WRH ALL DESIGN DATAAND INFORMATION CONTAINED IN INCORPORATION OF THE UPPER MATERIAL TO AVOID STRATIFIED LAYERS, COMPACTION,SUCH AS FROM LARGE MACHINERY USE,AND FROM EROSION.
<br /> ----'- ---- - -r THIS DRAWLD. WHERE FEASIBLE.
<br /> " VANED INLET GRATE 4.INLET SHOULD NOT BE LOWER THAN OUTLET.INLET(IF APPLICABLE)AND OUTLET PIPING TO BE SPECIFIED BY ENGINEER AND PROVIDED BY
<br /> (SOLIDCOVEROPTIONAL) CONTRACTOR. 2.SOIL SHOULD BE PLANTED AND MULCHED AFTER INSTALLATION.
<br /> S.MANUFACTURER TO APPLY A SURFACE BEAD WELD IN THE SHAPE OF THE LETTER-0-ABOVE THE OUTLET PIPE STUB ON THE EXTERIOR SURFACE 2. PLANTING BEDS MUST BE MULCHED WITH 2 INCHES OF ORGANIC
<br /> OF THE STEEL SFCB. MATERIAL
<br /> _ rJ' __ r-0' B.STORMFILTER CATCHBASIN EQUIPPED WITH 4INCH(APPROXIMATE)LONG STUBS FOR INLET(IF APPLICABLE)AND OUTLET PIPING.STANDARD 3.PLANT DEBRIS OR ITS EQUIVALENT SHOULD BE LEFT ON THE SOIL SURFACE
<br /> INSIDE RIM INSIDE RIM OUTLET STUB IS B INCHES IN DIAMETER.MAXIMUM OUTLET STUB IS 15 INCHES IN DIAMETER.CONNECTION TO COLLECTION PIPING CAN BE MADE TO REPLENISH ORGANIC MATTER.
<br /> 1'-0' 4•a=; USING FLEXIBLE COUPLING BY CONTRACTOR. 3. QUALITY OF COMPOST AND OTHER MATERIALS USED TO MEET THE
<br /> COLLAR OUTSIDE RIM 7.STEEL STRUCTURE TO BE MANUFACTURED OF II4 INCH STEEL PLATE.CASTINGS SHALL MEET AASHTO M305 LOAD RATING.TO MEET HS20 LOAD U
<br /> RATING ON STRUCTURE,A CONCRETE COLLAR IS REQUIRED.WHEN REQUIRED,CONCRETE COLLAR WITH N4 REINFORCING BARS TO BE PROVIDED ORGANIC CONTENT REQUIREMENTS: J LLI
<br /> Y CONTRA TOR.
<br /> PLAN VIEW B.FILT R CARTRDGES SHALL BE MEDIA,FILLED,PASSIVE,SIPHON ACTUATED,RADIAL FLOW,AND SELF CLEWING.RADIAL MEDIA DEPTH SHALL BE J J
<br /> 7-INCHES.FILTER MEDIA CONTACT TIME SHALL BEAT LEAST as SECONDS. _ LL
<br /> 9.SPECIFIC FLOW RATE IS EQUAL TO THE FILTER TREATMENT CAPACITY(go,)DIVIDED BY THE FILTER CONTACT SURFACE AREA INN. W O O
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<br /> INSTALLATION NOTES DISCHARGE PIPE, PLACE ROCK 1.0' W_ Z 00 a Q
<br /> A.ANY SUB-BASE,BACKFILL DEPTH,ANDIOR ANTI-FLOTATION PROVISIONS ARE SITE-SPECIFIC DESIGN CONSIDERATIONS AND SHALL BE SPECIFIED BY BEVEL PIPE TO SLOPE. ABOVE CROWN D- Q L W
<br /> ENGINEER OF RECORD.
<br /> B.CONTRACTOR TO PROVIDE EQUIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE CATCHBASIN(LIFTING CLUTCHES DEBRIS BARRIER cc PROVIDED).
<br /> C.CONTRACTOR TO TAKE APPROPRIATE MEASURES TO PROTECT CARTRIDGES FROM CONSTRUCTION-RELATED EROSION RUNOFF. PER STD DTL435 W F a
<br /> 4•Ja; - _OPTIONAL LENGTH,L /VA///A�/�A�/�A��� a N Z_ gn
<br /> sLopeD LID FLonrABLEs 1-CARTRIDGE CATCHBASIN 1-CARTRIDGE CATCHBASIN Q L Q fA
<br /> ra• -- r-0• - BAFFLE STORMFILTER DATA STORMFILTER DATA C DC OC F
<br /> B� PERMANENT LIFTING EYE STRUCTURED SDCB-1A STRUCTURE ID SDCB-1A FLOW CL OD W 0
<br /> POOL ELEVATION 0_.OF 4) - O
<br /> WATER QUALITY FLOW RATE(cfs) 0.023cfs WATER QUALITY FLOW RATE LL 0.037cfs m
<br /> q _ A FINISHED GRADE __ ) PEAK FLOW RATE(<I cfs) 0.282efs PEAK FLOW RATE(<7 cfs) _0.445cfi /� � ��\� Q LLI Z
<br /> b 1 __ �, �I RETURN PERIOD OF PEAK FLOW(yls) 100 RETURN PERIOD OF PEAK FLOW(y.) 100 ��/� /\ / / Z cc
<br /> �/�'_
<br /> - 1 a \ L CARTRIDGE HEIGHT(2r,18",18'DEEP) 18' CARTRIDGE HEIGHT(27'18"18'DEEP) 27" ��� 0
<br /> 1 \ CARTRIDGE FLOW RATE(gpm) PSORB CARTRIDGE FLOW RATE pm PSORB F
<br /> / WEIR WALL i MEDIA TYPE(PERLITE,ZING,PSORB) PSORB MEDIATVPE PERUTE,ZPG,PSORB PSORS NON-WOVEN ROCK LINING, to
<br /> e STORMFILTER RIM ELEVATION 9.21' RIM ELEVATION 9.00' GEOTEXTILE SEE BELOW
<br /> CARTRIDGE FILTRATION FILTRATION BAY w
<br /> SAYINLET INLET - - -g PIPE DATA: I.E. DIAMETERPIPE DATA: I.E. DIAMETER UNDER ROCK
<br /> FLOW T INLET STUB NONE - INLET STUB INONE -
<br /> 8 YJ I\ OUTLET STUB OUTLET STUB 6.95' 12"
<br /> PRMANENT Z L Y V, \ CONFIGURATION CONFIGURATION REQUIRED DIMENSIONS
<br /> POOL ELEVATION INLETSTUB INLETSTUB OUTLET OUTLET OUTLET OUTLET
<br /> N (OPTIONAL) OUTLET STUB
<br /> ` CARTRIDGE (OPTIONAL) INLET INLET INLET, O INLET
<br /> a SUPPORT OUTLET PIPE INtiti �I INLET INLET SIZE LENGTH WIDTH DEPTH OF ROCK DATE:
<br /> FLOW KR -7- --- -' FROM FLOWKIT LARGE 8'MIN DIA.PLUS 6'MIN 12"MIN 9/14/23
<br /> SLOPED LID YES\NO SLOPED LID YES\NO
<br /> CATCHBASIN FOOT g� ACCESS PLUG -oUT 2'-0' .I `, QATCHBASIN FOOT SOLID VES\NO SOLID VES\NO ROCK LINING JOB#: c
<br /> 9 (TYP.OF 4) ON WEIR WALL INSIDE (TYp.OF 4) NOTESISPECIAL REQUIREMENTS: NOTES/SPECIAL REQUIREMENTS: TO BE QUARRY SPALLS PER WSDOT 9-13.6 21-1 V2
<br /> 2Il4 -
<br /> ~ OUTSIDE
<br /> SECTION A-A SECTION B-B SDCB-1A DATA TABLE SDCB-2A DATA TABLE 1 CULVERT OUTFALL PAD
<br /> SCALE:NONE B
<br /> e CdNTECH' 1 CARTRIDGE CATCHBASIN
<br /> St rmF Item. ENGINEERED SOWTIONS LLC STORMFILTER
<br /> .r,Su ft ,We.1 STANDARD DETAIL
<br /> Know what's below.$ eop szrr3gse s,34ds.7W0 s,3s1s7ge3 FA. Call before you dig.
<br /> C3.1
<br /> PAWORMPROJECTS\2021\21-162 SEA COMCE\DWG\SHEETS\C3.0 GRADING SMALL.DWG 9/14/2023
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