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NE 114 OF NW 114 OF ® TWA ,
<br />WK
<br />STORM DRAINAGE NOTES
<br />WATER NOTES
<br />1e NO PART OF THE DRAINAGE SYSTEM SHALL BE COVERED, CONCEALED,
<br />A.
<br />NO CONNECTION TO THE EXISTING MAINS WILL BE ALLOWED EXCEPT BY
<br />OR PUT INTO USE UNTIL IT HAS BEEN INSPECTED, TESTED, AND
<br />MEANS OF AN APPROVED BACKFLOW PREVEN77ON DEVICE PRIOR TO
<br />ACCEPTED BY 7HIE CITY OF EVERETT
<br />SATISFACTORY FLUSHING, TESTING, DISINFECTION, AND RECEIPT OF
<br />SATISFACTORY BACTERIOLOGICAL TEST RESULT
<br />2. ALL WORK AND MATERIAL SHALL CONFORM TO THE CITY OF ERETT
<br />DESIGN AND CONS7RUC7TON STANDARDS AND SPEC/FICA 77ONS AND THE
<br />B.
<br />CONNEC77ONS TO AND TAPS ON EXISTING MAINS WILL BE MADE BY THE
<br />WSDOT / APW A STANDARD SPECIFICATIONS FOR ROAD, BRIDGE, AND
<br />PUBLIC WORKS DEPARTWENT AT TIME DEVELOPER'S EXPENSE. THE
<br />MUNICIPAL CONSTRUCTION (CURRENT E0I770N).
<br />PUBLIC WORKS DEPAR7MENT SHALL DE GIVEN AT LEAST 5 BUSINESS
<br />DAYS NOTICE FOR EACH CONNECTION THE PUBLIC WORKS
<br />J. APPROXIMATE LOCATIONS OF EXISTING UTILITIES HAVE BEEN OBTAINED
<br />DEPARTMENT SMALL THEREAFTER DETERMINE 774E DATE AND 77ME AT
<br />FROM AVAILABLE RECORDS AND ARE SHOWN FOR CONVENIENCE THE
<br />WHICH THE CONNECTION SHALL BE MADE.
<br />CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFICATION OF LOCATIONS
<br />AND TO AVOID DAMAGE TO ANY ADDITIONAL UTIL177ES SHOWN IF
<br />C.
<br />ALL WORK AND MATERIALS MUST CONFORM TO CITY OF EVERETT
<br />CONFLICTS Wl TH EXIS77NG U77LI77ES ARISE DURING CONSTRUCTION, THE
<br />STANDARDS
<br />CONTRACTOR SHALL NOTIFY THE PUBLIC WORKS INSPECTOR AND ANY
<br />CHANGES REQUIRED SHALL BE APPROVED BY THE CITY ENGINEER
<br />D.
<br />A PRE—CONS7RUCTION MEETING SHALL BE HELD WITH 7HE CITY PRIOR
<br />PRIOR TO COMMENCEMENT OF ,RELATED CONS7RUC770N ON THE
<br />TO 7HIE START OF CONSTRUCTION THE CITY OF ERETT PUBLIC
<br />PROJECT.
<br />WORKS CONSTRUCTION DIWS1ON MUST BE NOTIFIED AT LEAST 24
<br />HOURS PRIOR TO COMMENCEMENT OF CONSTRUCTION
<br />4, ALL STORM SYSTEMS WITHIN THE PUBLIC RIGHT—OF—WAY OR IN
<br />EASEMENTS MUST BE STAKED BY SURVEY FOR LINE AND GRADE PRIOR
<br />E.
<br />THE DEVELOPER OR TIME DEVELOPER'S AUTHORIZED AGENT SMALL
<br />TO STARTING CONS7RNC77ON.
<br />NOTIFY THE PUBLIC WORKS DEPAR7MENT OF A PERSON WHO CAN BE
<br />CONTACTED REGARDING PROBLEMS DURING CONSTRUCTION ON A 24
<br />5. ALL CATCH BASIN GRA TES MUST BE S7ENCILED OR STAMPED "DUMP
<br />DOUR BASIS
<br />NO WASTE; DRAINS TO STREAM, LAKE, RIVER, PUGET SOUND, OR
<br />ILAND. " CHOOSE APPROPRIATE FEATURE FOR THE PROJECT
<br />F
<br />MAINTAIN A MINIMUM OF 10 FEET HORIZONTAL AND 18 INCHES
<br />VEER77CAL SEPARATION BETWEEN POTABLE AND NON —POTABLE
<br />CONVEYANCE SYSTEMS
<br />G.
<br />ALL CITY OF EVERETT VALVES SHALL BE OPERA TED BY PUBLIC WORKS
<br />SOIL QUALITY NOTES
<br />DEPAR7MENT PERSONNEL ONLY ALL VALVES, NEW AND EXIS77NG,
<br />ALL AREAS SUBJECT TO CLEARING AND GRADING THAT HAVE NOT BEEN
<br />SHALL BE ACCESSIBLE AT ALL TIMES
<br />COVERED BY IMPERVIOUS SURFACE, INCORPORATED INTO A DRAINAGE
<br />FACILITY OR ENGINEERED AS STRUCTURAL FILL OR SLOPE SMALL, AT
<br />PROJECT COMPLE770N, DEMONSTRATE THE FOLLOWING;
<br />TESC NO TES
<br />1® A TOPSOIL LAYER WITH A MINIMUM ORGANIC MATTER CONTENT OF 10%
<br />1.
<br />APPROVAL OF THIS EROSIONISEDIMENTATION CONTROL (ESC) PLAN
<br />DRY WEIGHT IN PLANTING BEDS, AND 57 ORGANIC MATTER CONTENT IN
<br />DOES NOT CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR
<br />TURF AREAS, AND A pH FROM 6.0 TO 8. 0 OR MATCHING THE pH OF
<br />DRAINAGE DESIGN (E.G.SIZE AND LOCATION OF ROADS, PIKES,
<br />THE UNDISTURBED SOIL® THE TOPSOIL LAYER SHALL HAVE A MINIMUM
<br />RE57RICTORS, CHANNELS, DETENTION FACILITIES, UTIL1 T7ES),
<br />DEPTH OF 8 INCHES EXCEPT WHERE TREE ROOTS LIMIT THE DEPTH/ OF
<br />INCORPORA77ON OR AMENDMENTS NEEDED TO MEET 774E CRITERIA.
<br />2
<br />THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONS UCT7ON,
<br />SUB®SOILS BELOW THE TOPSOIL LAYER SHOULD BE SCARIFIED AT LEAST
<br />MAINTENANCE, REPLACEMENT, AND UPGRADING OF ESE ESC FACILITIES
<br />4 INCHES WITH SOME INCORPORA 77ON OF THE UPPER MA 7E"RIAL TO
<br />IS TIME RESPONSIBILITY OF THE APPLICANTICON7RACTOR UN77L ALL
<br />AVOID STRA77FIED LAYERS WHERE FEASIBLE
<br />CONS7RUCTION IS COMPLETE® AND APPROVED AND
<br />VEGETA 770NILANDSCAPING IS ESTABLISHED.
<br />2> MULCH/ PLANTING BEDS W! 2 INCHES OF ORGANIC MATTER
<br />3.
<br />THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL
<br />BE CLEARLY FLAGGED IN 774E FIELD PRIOR TO CONSTRUCTION, DURING
<br />3. USE COMPOST OR OTHER MATERIALS THAT MEET THE FOLLOWING
<br />THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND 7HE FLAGGED
<br />ORGANIC CONTENT REQUIREMENTS
<br />CLEARING LIM17SSHALL BE PERM! De THE FLAGGING SMALL BE
<br />MAINTAINED BY THE APPLICANTICONTRACTOR FOR THE DURATION
<br />OF CONSTRUCTION.
<br />3.1. E ORGANIC CONTENT FOR "PRE —APPROVED" AMENDMENT RATES
<br />CAN BE MET ONLY USING COMPOST MEETING THE COMPOST
<br />4.
<br />THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONS7RUCTED IN
<br />SPECIFICATION FOR BMP T7 30 BIORETENT/ON PER THE 2019 DOE
<br />CONJUNCTION WTH ALL CLEARING .AND GRADING ACTIV177ES, AND IN
<br />MANUAL, WTV THE EXCEPT70N THAT THE COMPOST MAY HAVE UP
<br />SUCH A MANNER AS TO ENSURE THAT SEDIMENT AND SEDIMENT LADEN
<br />TO 35 B/OSOLIDS OR MANURE THE COMPOST MUST ALSO HAVE AN
<br />WATER DO NOT EN TER THE DRAINAGE SYSTEM, ROAD WA YS, OR VIOLATE
<br />ORGANIC MAT7ER CONTENT OF 40% TO 65Y., AND A CARBON TO
<br />APPLICABLE WATER QUALITY STANDARDS
<br />NITROGEN RA 770 BELOW 25. 1. THE CARBON TO NITROGEN RA 770
<br />MA Y BE A S HIGH AS 35. 1 FOR PLAN77NGS COMPOSED ENTIRELY OF
<br />5®
<br />THE ESC FACILITIES SHOWN ON THIS PLAN ARE 7HE MINIMUM
<br />PLANTS NATIVE TO THE PUGET SOUND LOWLANDS REGION.
<br />REQUIREMENTS FOR ANTICIPATED S17E CONDITIONS DURING THE
<br />CONSTRUCTION PERIOD, 7HESE ESC FACIL177ES SHALL BE UPGRADED AS
<br />3.2. CALCULATED AMENDMENT RA TES MAY BE MET THROUGH/ USE OF
<br />NEEDED FOR UNEXPECTED STORM EVENTS AND TO ENSURE THAT
<br />COMPOSTED MA7ERIAL MEETING ABOVE (3.1) OR OTHER ORGANIC
<br />SEDIMENT AND SEDIMENT —LADEN WATER DO NOT LEAVE THE SITE
<br />MATTER AMENDED TO MEET THE CARBON TO N17ROGEN RAT70
<br />6.
<br />THE ESC FACIL177ES SHALL BE INSPECTED ROUTINELY AND MAINTAINED
<br />REQUIREMENTS, AND NOT EXCEEDING THE CONTAMINANT LIMITS
<br />BY THE APPLICANTICON7RACTOR TO ENSURE THEIR CONTINUED
<br />IDENTIFIED IN TABLE 220®B, TESTING PARAMETERS, IN WAC
<br />FUNCTIONING, ESPECIALLY AFTER STORM EVENTS
<br />1 J—J50-220.
<br />Z
<br />THE ESC FACILITIES ON INACTIVE SITES SMALL BE INSPEC7ED AND
<br />MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN THE 48 HOURS
<br />SOIL QUALITY IMPLEMENTATION OPTIONS
<br />FOLLOWING A MAJOR STORM EVENT
<br />THE SOIL QUALITY DESIGN GUIDELINES LISTED ABOVE CAN BE MET BY USING
<br />S.
<br />AT NO TIME SHALL MORE THAN ONE FOOT OF SEDIMENT BE ALLOWED TO
<br />ONE OF THE METHODS LISTED BELOW/
<br />ACCUMULATE WITHIN A TRAPPED CATCH BASIL ALL CATCH BASINS AND
<br />1® LEAVE UNDISTURBED NATIVE VEGETATION AND SOIL, AND PROTECT FROM
<br />CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING THE
<br />COMP C77ON DURING CONS7RUC770N.
<br />CLEANING OPERATION SHALL NOT FLUSH! SEDIMENT LADEN WATER INTO
<br />AMEND EXIS77NG SITE TOPSOIL OR SUB —SOIL EITHER AT DEFAULT
<br />THE DOWNS7REAMS TE .
<br />"'PRE —APPROVED" RATES, OR AT CUSTOM CALCULA 7 D RATES BASED
<br />STABILIZED CONSTRUCTON ENTRANCES SHALL BE INSTALLED AT THE
<br />ON TESTS OF THE SOIL AND AMENDMENT
<br />o
<br />BEGINNING OF CONS7RUC77ON AND MAINTAINED FOR THE DURATION OF
<br />J. STOCKPILE EXIS77NG TOPSOIL DURING GRADING, AND REPLACE PRIOR TO
<br />THE PROJECT ADDITIONAL MEASURES MAY BE REQUIRED TO ENSURE
<br />PLANTING STOCKPILED TOPSOIL MUST ALSO BE AMENDED IF NEEDED TO
<br />THAT ALL PAVED AREAS ARE KEPT CLEAN FOR THE DURATION OF THE
<br />MEET THE ORGANIC MA TIER OR DEPTH REQUIREMENTS, EITHER AT A
<br />PROJECT
<br />DEFAUL T "PRE —APPROVED" RA TT OR A T A CUSTOM CALCULA TED RA TE
<br />4. IMPORT TOPSOIL MIX OF SUFFICIENT ORGANIC CONTENT AND DEPTH TO
<br />10.
<br />THE CON ACTOR SHALL PROVIDE PERIODIC S7REET CLEANING TO
<br />MEET THE REQUIREMENTS.
<br />REMOVE DEBRIS AND SEDIMENT 7RACKED OFF THIE SITE
<br />MORE THAN ONE METHOD MA Y BE USED ON DIFFERENT POR77ONS OF THE
<br />11.
<br />APPROPRIATE MEASURES SHALL BE TAKEN TO STOP SEDIMENT FROM
<br />SAME SITE SOIL TWAT ALREADY MEETS THE DEPTH AND ORGANIC FATTER
<br />ENTERING SURFACE WATER BODIES IF THE PROPOSED BMPS FAIL,
<br />QUALITY STANDARDS, AND IS NOT COMPACTED, DOES NOT NEED TO BE
<br />AMENDED,
<br />12.
<br />BARE AND/OR DISTURBED SOILS SHALL REMAIN UNCOVERED AND/OR
<br />UNSTABILIZED FOR NO MORE THAN 2 DAYS FROM OCTOBER 1 THROUGH
<br />APRIL 30, AND FOR NO MORE THAN 7 DAYS FROM MAY 1 THROUGH
<br />SEPTEMBER 30.
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