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SECTION 4 & 5, TOWNSHIP 29 NORTH, RANGE 5 EAST, W.M.
<br /> 0
<br /> BMP T5.13: POST-CONSTRUCTION SOIL A.THE ORGANIC CONTENT FOR"PRE-APPROVED"AMENDMENT RATES CAN y
<br /> BE MET ONLY USING COMPOST THAT MEETS THE DEFINITION OF z
<br /> QUALITY "COMPOSTED MATERIALS"IN WAC 173-350-220.THIS CODE IS AVAILABLE V
<br /> ONLINE AT: III
<br /> HTTP://W W W.ECY.WA.GOVFPROGRAMS/SW FA/FACILITIES/350.HTML. 0
<br /> THIS BMP SHALL BE USED IN THE LANDSCAPED AREAS ON THE SITE AND ANY COMPOST USED IN BIORETENTION AREAS SHOULD BE STABLE,MATURE o
<br /> OTHER DISTURBED AREAS. AND DERIVED FROM YARD DEBRIS,WOOD WASTE,OR OTHER ORGANIC j
<br /> PURPOSE AND DEFINITION
<br /> MATERIALS THAT MEET THE INTENT OF THE ORGANIC SOIL AMENDMENT m
<br /> N
<br /> NATURALLY OCCURRING(UNDISTURBED)SOIL AND VEGETATION PROVIDE SPECIFICATION.HOSOLIDS AND MANURE COMPOSTS CAN BE HIGHER IN
<br /> SDCB-2A BID-AVAILABLE PHOSPHORUS THAN COMPOST DERIVED FROM YARD OR
<br /> SD STORMFILTER
<br /> IMPORTANT STORMWATER FUNCTIONS INCLUDING:WATER INFILTRATION; >
<br /> STORMF RID STORMFILTE PLANT WASTE AND THEREFORE ARE NOT ALLOWED IN BIORETENTION w
<br /> NUTRIENT,SEDIMENT,AND POLLUTANT ADSORPTION;SEDIMENT AND
<br /> 18"-10.22 D E 27"CARTRIDGE POLLUTANT BIOFILTRATION;WATER INTERFLOW STORAGE AND TRANSMISSION; AREAS DUE S IN
<br /> POSSIBILITY OF EXPORTING BID-AVAILABLE ,
<br /> RIM=�10.5' RIM 2"SE)-10.00' PHOSPHORUS IN EFFLUENT. ry
<br /> IE(12"SE)OUT=7-206.95' AND POLLUTANT DECOMPOSITION.THESE FUNCTIONS ARE LARGELY LOST a
<br /> 15 IE(12"W)OU = 72-7.90' 15 15 EXISTING GRADE 15 WHEN DEVELOPMENT STRIPS AWAY NATIVE SOIL AND VEGETATION AND THE COMPOST MUST ALSO HAVE AN ORGANIC MATTER CONTENT OF 35%TO
<br /> EXISTING GRADE
<br /> REPLACES IT WITH MINIMAI TOPSOIL AND SOD.NOT ONLY ARE THESE 65%,AND A CARBON TO NITROGEN RATIO BELOW 25:1. ..,m IMPORTANT STORMWATER FUNCTIONS LOST,BUT SUCH LANDSCAPES
<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 /> 92 B.CALCULATED AMENDMENT RATES MAY BE MET THROUGH USE OF cr cr m N rn
<br /> 98LF 12"CPEF W O\ ESTABLISHING SOIL QUALITY AND DEPTH REGAINS GREATER STORMWATER COMPOSTED MATERIALS AS DEFINED ABOVE;OR OTHER ORGANIC 4 A IQ
<br /> 107 LF FUNCTIONS IN THE POST DEVELOPMENT LANDSCAPE,PROVIDES INCREASED m v o`F10-LF 12" MATERIALS AMENDED TO MEET THE CARBON TO NITROGEN RATIO
<br /> S=0:BB5FT/F CPEP TREATMENT OF POLLUTANTS AND SEDIMENTS THAT RESULT FROM REQUIREMENTS,AND MEETING THE CONTAMINANT STANDARDS OF GRADE LLI I'-M
<br /> 0.007 S_ - DEVELOPMENT AND HABITATION,AND MINIMIZES THE NEED FOR SOME A COMPOST. Z W o o
<br /> 5 O TFALL IE 5 5 �1 FT/FT 5 LANDSCAPING CHEMICALS,THUS REDUCING POLLUTION THROUGH o w
<br /> 0.018 PREVENTION. 0I �.In
<br /> 7.29' THE RESULTING SOIL SHOULD BE CONDUCIVE TO THE TYPE OF VEGETATION
<br /> APPLICATIONS AND LIMITATIONS TO BE ESTABLISHED. Z j Q
<br /> OUTFALL IE ESTABLISHING A MINIMUM SOIL QUALITY AND DEPTH IS NOT THE SAME AS W LL
<br /> 5.01' PRESERVATION OF NATURALLY OCCURRING SOIL AND VEGETATION.HOWEVER, IMPLEMENTATION OPTIONS:THE SOIL QUALITY DESIGN GUIDELINES LISTED IA
<br /> 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 ABOVE CAN
<br /> ON-SITE MANAGEMENT OF STORMWATER FLOW AND WATER QUALITY. 1.LEAVE UNDISTURBED NATIVE VEGETATION AND SOIL,AND PROTECT FROM
<br /> C
<br /> 0+00 0+30 0+60 0+90 1+20 0+00 0+30 0+60 0+90 1+20 COMPACTION DURING CONSTRUCTION.
<br /> a
<br /> STORMFILTER SDCB-1A TO OUTFACE PROFILE STORMFILTER SDCB-2A TO OUTFACE 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.IN TURF AREAS,PLACE TWO INCHES OF COMPOST AND TILL INTO AN
<br /> AS-BUILT CERTIFICATION: f
<br /> PERCENT OF CLAY FINES. F.
<br /> EIGHT-INCH DEPTH.
<br /> w
<br /> O I HEREBY DECLARE TO THE BEST OF MY D.APPLY TWO TO FOUR INCHES OF ARBORIST WOOD CHIP,COARSE BARK N
<br /> DESIGN GUIDELINES S� 0� MULCH,OR COMPOST MULCH TO PLANTING BEDS AFTER FINAL PLANTING. rn
<br /> KNOWLEDGE THAT THE INFORMATION SHOWN F
<br /> lr SOIL RETENTION rn 04
<br /> HEREON REFLECTS THE"AS-CONSTRUCTED THE DUFF LAYER AND NATIVE TOPSOIL SHOULD BE RETAINED IN AN Z OD
<br /> R O CONDITIONS".THIS CERTIFICATION IS BASED ALTERNATIVELY,DISTURBED SOIL CAN BE AMENDED ON AAITE-CUSTOMIZED _
<br /> UPON WORK PREPARED IN ACCORDANCE WITH UNDISTURBED STATE TO THE MAXIMUM EXTENT PRACTICABLE.IN ANY AREAS MALULER SO THAT IT MEETS THE SOIL QUALITY CRITERIA SET FORTH ABOVE, Q m Q
<br /> t/j �••� REQUIRING GRADING REMOVE AND STOCKPILE THE DUFF LAYER AND TOPSOIL
<br /> GENERALLY ACCEPTED PROFESSIONAL ENGINEERING AND/OR SURVEYING AS DETERMINED BY A LICENSED ENGINEER,GEOLOGIST,LANDSCAPE In 3
<br /> ON SITE IN A DESIGNATED,CONTROLLED AREA,NOT ADJACENT TO PUBLIC
<br /> y PRACTICES. RESOURCES AND CRITICAL AREAS,TO BE REAPPLIED TO OTHER PORTIONS OF ARCHITECT,OR OTHER PERSON AS APPROVED BY SNOHOMISH COUNTY. -t W O O
<br /> 42848O STEVE D.MCCASKEY STORMFILTER STEEL CATCHBASIN DESIGN NOTES THE SITE WHERE FEASIBLE. 3. STOCKPILE EXISTING TOPSOIL DURING GRADING,AND REPLACE IT PRIOR W m¢
<br /> yc"42670F•�]STE .R' STORMFILTER TREATMENT CAPACITY ISA FUNCTION OF THE CARTRIDGE SELECTION AND THE NUMBER OFCARTRIDGES.1 CARTRIDGE CATCHBASIN TO PLANTING.STOCKPILED TOPSOIL MUST BE AMENDED IF NEEDED TO MEET LU O z
<br /> HAS A MAXIMUM OF ONE CARTRIDGE.SYSTEM IS SHOWN WITH A 27-CARTRIDGE,AND IS ALSO AVARABLE WITH AN 1W CARTRIDGE.STORMFILTER SOIL QUALITY THE ORGANIC MATTER AND DEPTH REQUIREMENTS BY FOLLOWING THE tv
<br /> Ojir cArcHBASIN CONFIGURATDNE ARE AVAILABLE WITH A DRY INLET BAY FOR VEQTDR CONTROL, ALL AREAS SUBJECT TO CLEARING AND GRADING THAT HAVE NOT BEEN PROCEDURES IN METHOD(2)ABOVE. 1*
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<br /> ALLANp DATE:5-29-24 PEAK HYDRAULIC CAPACITY PER TABLE BELOW.IF THE SITE CONDITIONS EXCEED PEAK HYDRAULIC CAPACITY,AN UPSTREAM BYPASS STRUCTURE IS
<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 DEEP MEET THE ORGANIC MATTER AND DEPTH REQUIREMENTS. TDN
<br /> ACCESS COVER CONCRETECOLLAR RECOMMENDED HYDRAULIC DROP(H) �����2,owdjWwg_
<br /> 2.3' 3.3' \
<br /> AND REBARTOMEET SPECIFIC FLOW RATE(gp-0 'gpmM 1 gfXSlsf 2,owd erg_ I gpwd 1. A TOPSOIL LAYER WITH A MINIMUM ORGANIC MATTER CONTENT OFTEN MORE THAN ONE METHOD MAY BE USED ON DIFFERENT PORTIONS OF THEHS20IFAPPLICABLEBY CARTRIDGE FLOW RAT11-) zsa z5 15 7.s PERCENT DRY WEIGHT IN PLANTING BEDS,AND 5%ORGANIC MATTERCONTRACTOR SAME SITE.SOIL THAT ALREADY MEETS THE DEPTH AND ORGANIC MATTER
<br /> PEAK HYDRAULIC CAPACITY1.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• 2'-0" QUALITY STANDARDS,AND IS NOT COMPACTED,DOES NOT NEED TO BE
<br /> -'- ------- -- y FROM 6.0 TO 8.0 OR MATCHING THE PH OF THE ORIGINAL UNDISTURBED SOIL. O `
<br /> A A OVERALL STRUCTURE HEIGHT(B) 4'-9' 3'S• 4'-9' AMENDED.
<br /> 0]gpM SPECIFIC FLOW RATE IS APPROVED WTHPHOWHOSORB PEON)MEDIA ONLY THE TOPSOIL LAYER SHALL HAVE A MINIMUM DEPTH OF EIGHT INCHES p ¢y am
<br /> P
<br /> EXCEPT WHERE TREE ROOTS LIMIT THE DEPTH OF INCORPORATION OF 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 alb
<br /> 2.FOR SITE SPECIFIC DRAWINGS WITH DETAILED STORMFILTER CATCHBASINSTRUCTURE DIMENSIONS AND WEIGHTS,PLEASE CONTACTVOUR TOPSOIL LAYERSHOULD BE SCARIFIED AT LEAST 4 INCHES WITH SOME �I\
<br /> N
<br /> Z
<br /> T s CONTECH ENGINEERED SIN WATER_LC REPRESENTATIVE.x SHALL
<br /> BE IN ACCORDANCE
<br /> 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 DHAWLD 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 /> 5.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 /> _ r F __ 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=; uslNc FLEXIBLE couPLlNc BY CONTRACTOR. 3. QUALITY OF COMPOST AND OTHER MATERIALS USED TO MEET THE
<br /> COLLAR OUTSIDE RIM 7.STEEL STRUCTURE TO BE MANUFACTURED OF 114 INCH STEEL PLATE.CASTINGS SHALL MEET AASHTO M305 LOAD RATING.TO MEET HS20 LOAD Ucli
<br /> RATING ON STRUCTURE,A CONCRETE COLLAR IS REQUIRED.WHEN REQUIRED,CONCRETE COLLAR WITH N4 REINFORCING BARS TO BE PROVIDED ORGANIC CONTENT REQUIREMENTS: L
<br /> BY CONTRA TOR.PLAN VIEW B.F J
<br /> FILTER CA 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. L C) 0
<br /> 04
<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.CONTRACTORTO TAKE APPROPRIATEMEASURESTO PROTECTCARTRIDGES FROM CONSTRUCTION-RELATED EROSION RUNOFF. PER STD DTL 435 W F a
<br /> 4•-0'1 - _OPTIONAL LENGTH,L VA���A���A���A�1� a N Z_ on
<br /> sLopeD LID FLonrABLEs 1-CARTRIDGE CATCHBASIN 1-CARTRIDGE CATCHBASIN Q L Q fA
<br /> ra• -- r<• - 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) - 0
<br /> WATER QUALITY FLOW RATE(cfs) 0.023cfs WATER QUALITY FLOW RATE LL 0.037cfs M
<br /> q _ A FINISHED GRADE __ ) PEAK FLOW RATE(<T cfs) 0.282efs PEAK FLOW RATE(<T cfs) _0.445cfi �� /� �������\� Q lLl 2 Z
<br /> �I RETURN PERIOD OF PEAK FLOW(yls) 100 RETURN PERIOD OF PEAK FLOW(y.) 100 ��/� /\ / % -/������ Z cc
<br /> �/�'_
<br /> CARTRIDGE HEIGHT(27",18",18'DEEP) 18' CARTRIDGE HEIGHT(_r 18"'18"DEEP) 21" ��� 0
<br /> 1 \ CARTRIDGE FLOW RATE(gpm) PSORB CARTRIDGE FLOW RATE pm PSORB F
<br /> / WEIR WALL i MEDIA TYPE(PERLITE,ZING,PSORB) PSORB MEDIA TYPEPERUTE,ZPG,PSORB PSORS NO ROCK LINING, V)
<br /> e STORMFILTER RIM ELEVATION 9.21' RIM ELEVATION 9.00' GEQTEXTILE $EE BELOW
<br /> CARTRIDGE FILTRATION FILTRATION BAY Y
<br /> BAY INLET INLET - - -g PIPE DATA: I.E. DIAMETE PIPE DATA: I.E. DIAMETER UNDER ROCK
<br /> FLOW T INLET STUB NONE - INLET STUB INONE -
<br /> g YJ I\ OUTLET STUB 1,11' 12" OUTLET STUB 5.95' 12"
<br /> PRMANENT Z 1 ` Y, \ CONFIGURATION CONFIGURATION REQUIRED DIMENSIONS
<br /> POOL ELEVATION INLETSTUB INLETSTUB OUTLET OUTLET OUTLET OUTLET
<br /> N (OPTIONAL) OUTLET STUB
<br /> ` CARTRIDGE (OPTIONAL) INLET INLET INLET, O INLET
<br /> a SUPPORT OUTLET PIPE INtiti �I INLET INLET SIZE LENGTH WIDTH DEPTH OF ROCK DATE:
<br /> FLOW KR -7- --- -' FROM FLOWKIT LARGE 8'MIN DIA.PLUS 6'MIN 12"MIN 9/14/23
<br /> SLOPED LID YES\NO SLOPED LID YES\NO
<br /> CATCHBASIN FOOT g� ACCESS PLUG -oUT 2'-0' .I `, QATCHBASIN FOOT SOLID VES\NO SOLID VES\NO ROCK LINING JOB#: c
<br /> 9 (TYP.OF 4) ON WEIR WALL INSIDE (Typ.OF 4) NOTESISPECIAL REQUIREMENTS: NOTES/SPECIAL REQUIREMENTS: TO BE QUARRY SPALLS PER WSDOT 9-13.6 21-1 V2
<br /> 2Il4 -
<br /> ~ OUTSIDE
<br /> SECTION A-A SECTION B-B SDCB-1A DATA TABLE SDCB-2A DATA TABLE 1 CULVERT OUTFALL PAD
<br /> SCALE:NONE B
<br /> e CdNTECH' 1 CARTRIDGE CATCHBASIN
<br /> St rmF Item. ENGINEERED SOWTIONS LLC STORMFILTER
<br /> .r,Su ft ,We.1 STANDARD DETAIL
<br /> Know what's below.$ eop s2rr3pse s,34ds.7W0 s,aras,eea FA. Call before you dig.
<br /> C3.1
<br /> PAVVORMPROJECTS\2021\21-162 SEA COMCE\DWG\SHEETS\C3.0 GRADING SMALL.DWG 9/14/2023
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