320 S CABOT RD 2019 Plans 2023-01-25

i ee a av ��tv vi � I INFILTRATION TRENCH #1 18'x6' (SEE DET.) l`dASHED RaGK 1 1/2"—J/$"^ 1. 91 E UYJUIL L6� TLK Vdl ! d� Fi lVIIIVIl�IUM UKI�%iIVIU li/IH I I LK l VIV l LIV I UI I Ufo UK T Vl�f=lliE i l d7LP tarts riles 1.' Y�'V rimer rI N MIN CB SUMP PLANTING BEDS, AND 5% ORGANIC MATTER CONTENT IN TURF AREAS, AND A PH FROM OVARIES L tit/SOLID LID 6.0 TO 8.0 OR MATCHING THE PH OF THE UNDISTURBED SOIL. THE TOPSOIL LAYER SHALL FINE HAVE A MINIMUM DEPTH OF EIGHT INCHES EXCEPT INHERE TREE ROOTS LIMIT THE DEPTH MESH MIN OF INCORPORATION OF AMENDMENTS NEEDED TO MEET THE CRITERIA. SUBSOILS BELOW SCREEN THE TOPSOIL LAYER SHOULD BE SCARIFIED AT LEAST 4 INCHES WITH SOME INCORPORATION OF THE UPPER MATERIAL TO AVOID STRATIFIED LAYERS, WHERE FEASIBLE. FILTER COMPACTED BACKFILL 2. MULCH PLANTING BEDS WITH 2 INCHES OF ORGANIC MATERIAL FABRIC 3. USE COMPOST AND OTHER MATERIALS THAT MEET THESE ORGANIC CONTENT PROP. SFR $» RIGID OF 6" INFILTRATION TRENCH NOTE: REQUIREMENTS: (2,679 SF) i�� FLEXIBLE A MAX SFR ROOF AREA OF 800 cl. THE ORGANIC CONTENT FOR 'PRE —APPROVED "AMENDMENT RATES CAN BE MET ' '� PERFORATE® PIPE SF SHALL DRAIN TO TRENCH 1. ONLY USING .COMPOST MEETING THE COMPOST SPECIFICATION FOR BMP T7.30: __. 6" A MAX SFR ROOF AREA OF 1,360 BIORETENTION CELLS, SWALES, AND PLANTER BOXES (P.959), WITH THE EXCEPTION 24" WASHED Racy SF SHALL DRAIN TO TRENCH 2. THAT THE COMPOST MAY HAVE UP TO 35% BIOSOLIDS OR MANURE. rA 1 1/2" 3/4"A MAX SFR ..ROOF AREA OF 560 THE COMPOST MUST ALSO HAVE AN ORGANIC MATTER CONTENT OF 40% TO 65%, AREA 'A' 12" % SF SHALL DRAIN TO TRENCH .3. AND A CARBON TO NITROGEN RATIO BELOW 25:1. (5a244 SF) � THE CARBON TO NITROGEN RATIO MAY BE AS HIGH AS 35:1 FOR PLANTINGS COMPOSED P '.. ' 1 ,�, I SECTION ENTIRELY OF PLANTS NATIVE TO THE PUGET SOUND LOWLANDS REGION. PRE` 6' I NTH COV D b. CALCULATED AMENDMENT .RATES MAY BE MET THROUGH USE OF COMPOSTED DECK 6 I _ MATERIAL MEETING (A.) ABOVE; OR OTHER ORGANIC MATERIALS AMENDED TO MIN. INFILTRATION TRENCH 3 NI �{QyT` �� DETAIL MEET THE CARBON TO NITROGEN RATIO REQUIREMENTS, AND NOT EXCEEDING THE 16 x6 (SEE DET.) NOT TO SCALE CONTAMINANT LIMITS IDENTIFIED IN TABLE 220—B, TESTING PARAMETERS, IN — WAG 173-350-220. INFILTRATION TRENCH #2 34'x6' (SEE DET.) THE RESULTING SOIL SHOULD BE CONDUCIVE TO THE TYPE OF VEGETATION TO BE EX. SFR p ESTABLISHED. / EX. FLOW ARROW (TYP.) IMPLEMENTATION OPTIONS: THE SOIL QUALITY DESIGN GUIDELINES LISTED ABOVE CAN BE ®® MET BY USING ONE OF THE METHODS LISTED BELOW: ® VARIES 1. LEAVE UNDISTURBED NATIVE VEGETATION AND SOIL, AND PROTECT FROM SDCQ (TYP.) COMPACTION DURING CONSTRUCTION. PERMEABLE PAVERS - ' �. �® ASPHALT (1,127 SF; SEE DET) OR CONCRETE 2. - AMEND EXISTING SITE TOPSOIL OR SUBSOIL EITHER AT TRANSITION ZONE _ DRIVEWAY DEFAULT `PRE— APPROVED" RATES, OR AT CUSTOM CALCULATED RATES BASED ON TESTS (TYP. SEE DET.) -�2� OF THE SOIL AND AMENDMENT. CONCRETE LAi�DSCAPli�G 3. STOCKPILE EXISTING TOPSOIL DURING GRADING, AND REPLACE IT PRIOR TO PAD (540 SF) INFILTRATION TRENCH 4 �= A TRANSITION ZSHALL PLANTING. STOCKPILED TOPSOIL MUST ALSO BE AMENDED IF NEEDED TO MEET THE ONLY BE INSTALLED ED ON THE ORGANIC MATTER OR DEPTH REQUIREMENTS, EITHER AT A DEFAULT `PRE— APPROVED" RATE 25`>c6' (SEE BET.) DRAIN ROCK OR j' DOWNSLOPE SIDE OF NEW PROP. CONCRETE CAR ASPHALT OR AT A CUSTOM CALCULATED RATE. SUBGRADE MATERIAL "co GARAGE DRIVEWAY AREAS. 4. IMPORT TOPSOIL MIX OF SUFFICIENT ORGANIC CONTENT AND DEPTH TO MEET THE (994 SF) AMENDED SAIL (REFER TO THIS REQUIREMENTS. SHEET FOR SPEC.) CB (TYP.) MORE THAN ONE METHOD MAY BE USED ON DIFFERENT PORTIONS OF THE SAME SITE. ITITRANSON ZONE DETAIL SOIL THAT ALREADY MEETS THE DEPTH AND ORGANIC MATTER QUALITY STANDARDS, AND IS NOT COMPACTED, DOES NOT NEED TO BE AMENDED. BASIC DRAINAGE NOTES 1. NO PART OF THE DRAINAGE SYSTEM SHALL BE COVERED, CONCEALED, OR PUT INTO USE UNTIL IT HAS BEEN INSPECTED, TESTED, AND ACCEPTED BY THE CITY OF EVERETT 2. ALL WORK AND MATERIAL SHALL CONFORM TO THE CITY OF EVERETT DESIGN AND CONSTRUCTION STANDARDS AND SPECIFICATIONS AND THE WSDOT/APWA STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND MUNICIPAL CONSTRUCTION (CURRENT EDITION). 3. APPROXIMATE LOCATIONS OF EXISTING UTILITIES HAVE BEEN OBTAINED FROM AVAILABLE RECORDS AND ARE SHOWN FOR CONVENIENCE. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFICATION OF LOCATIONS AND TO AVOID DAMAGE TO ANY ADDITIONAL UTILITIES SHOWN. IF CONFLICTS WITH EXISTING UTILITIES ARISE DURING CONSTRUCTION, THE CONTRACTOR SHALL NOTIFY THE PUBLIC WORKS INSPECTOR AND ANY CHANGES REQUIRED SHALL BE APPROVED BY THE CITY ENGINEER PRIOR TO COMMENCEMENT OF RELATED CONSTRUCTION ON THE PROJECT 4. ALL STORM SYSTEMS WITHIN THE PUBLIC RIGHT—OF—WAY OR IN EASEMENTS MUST BE STAKED BY SURVEY FOR LINE AND GRADE PRIOR TO STARTING CONSTRUCTION 5. ALL CATCH BASIN CRATES MUST BE STENCILED OR STAMPED "DUMP NO WASTE, DRAINS TO STREAM, LAKE, RIVER, PUGET SOUND, OR WETLAND." CHOOSE APPROPRIATE FEATURE FOR THE PROJECT. CURB/EDGE RESTRAINT No. 8 AGGREGATE TOP SET 1" MIN. ABOVE IN OPENINGS CONCRETE PAVERS PAVERS, SEE NOTE. MIN. 3 1/8" THICK q. 2" No. 8 AGGREGATE BEDDING COURSE PERMEABLE PAVER NOTE: 4" No. 57 STONE OPEN —GRADED BASE CONTRACTOR TO INSTALL PAVERS C C C C C C C C AND SUBGRADE SECTIONS PER o°C°C°o°o°C°CSC° 12" N�. 2 STONE SPECIFIC PRODUCT SPECS. 0000000000000000 SUBBASE °°°° OOOOC°O°O°° O GRADED SUBGRADE PEEMEABLF---EA-V-ER-..,$-EQII-QNLA�L NOT TO SCALE m 3I mWfS �2• M� o® OL OL J 0 CD u) < z < 3� X U) P < Lli uj CD U) 13� U) 0-0 (D W > u- 0 w 00 LL 0 0 i= Z' Of N C3