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EROSIONSTANDARD CITY OF EVERETT
<br />1. APPROVAL OF THIS EROSION/SEDIMENTATION CONTROL (ESC) PLAN DOES NOT CONSTITUTE AND APPROVAL OF
<br />PERMANENT ROAD OR DRAINAGE DESIGN (E.G. SIZE AND LOCATION OF ROADS, PIPES, RESTRICT ORS, CHANNELS,
<br />RETENTION FACILITIES, UTILITIES).
<br />2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND
<br />UPGRADING OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE APPLICANT/CONTRACTOR UNTIL ALL
<br />CONSTRUCTION IS COMPLETED AND APPROVED AND VEGETATION/LANDSCAPING IS ESTABLISHED.
<br />3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED IN THE FIELD
<br />PRIOR TO CONSTRUCTION, DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE FLAGGED
<br />CLEARING LIMITS SHALL BE PERMITTED. THE FLAGGING SHALL BE MAINTAINED BY THE APPLICANT/CONTRACTOR
<br />FOR THE DURATION OF CONSTRUCTION.
<br />4. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED IN CONJUNCTION WITH ALL CLEARING AND
<br />GRADING ACTIVITIES, AND IN SUCH A MANNER AS TO ENSURE THAT SEDIMENT AND SEDIMENT LADEN WATER DO
<br />NOT ENTER THE DRAINAGE SYSTEM, ROADWAYS, OR VIOLATE APPLICABLE WATER QUALITY STANDARDS.
<br />5. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS.
<br />DURING THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED
<br />STORM EVENTS AND TO ENSURE THAT SEDIMENT AND SEDIMENT -LADEN WATER DO NOT LEAVE THE SITE.
<br />6. THE ESC FACILITIES SHALL BE INSPECTED ROUTINELY AND MAINTAINED BY THE APPLICANT/CONTRACTOR TO
<br />ENSURE THEIR CONTINUED FUNCTION, ESPECIALLY AFTER STORM EVENTS.
<br />7. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A MONTH OR
<br />WITHIN THE 46 HOURS FOLLOWING A MAJOR STORM EVENT.
<br />8. AT NO TIME SHALL MORE THAN ONE FOOT OF SEDIMENT BE ALLOWED TO ACCUMULATE WITHIN A TRAPPED CATCH
<br />BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING
<br />OPERATION SHALL NOT FLUSH SEDIMENT LADEN WATER INTO THE DOWNSTREAM SYSTEM.
<br />9. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND
<br />MAINTAINED FOR THE DURATION OF THE PROJECT, ADDITIONAL MEASURES MAY BE REQUIRED TO ENSURE THAT
<br />ALL PAVED AREAS ARE KEPT CLEAN FOR THE DURATION OF THE PROJECT.
<br />10. THE CONTRACTOR SHALL PROVIDE PERIODIC STREET CLEANING TO REMOVE DEBRIS AND SEDIMENT TRACKED OFF
<br />THE SITE.
<br />11. APPROPRIATE MEASURES SHALL BE TAKEN TO STOP SEDIMENT FROM ENTERING SURFACE WATER BODIES IF THE
<br />PROPOSED BMP'S FAIL.
<br />12. BARE AND/OR DISTURBED SOILS SHALL REMAIN UNCOVERED AND/OR UNSTABILIZED FOR NO MORE THAN 2 DAYS
<br />FROM OCTOBER 1 THROUGH APRIL 30, AND FOR NOT MORE THAN 7 DAYS FROM MAY 1 THROUGH SEPTEMBER 30.
<br />1
<br />1. SEED MIXTURES SHALL BE PER THE "SEED MIXTURE FOR EROSION CONTROL" TABLE BELOW, AND SHALL
<br />BE APPLIED AT THE RATE OF 60 LB. PER ACRE.
<br />2. SEED BEDS PLANTED BETWEEN MAY 1 AND OCTOBER 31 WILL REQUIRE IRRIGATION AND OTHER
<br />MAINTENANCE AS NECESSARY TO FOSTER AND PROTECT THE ROOT STRUCTURE.
<br />3. FOR SEED BEDS PLANTED BETWEEN OCTOBER 31 AND APRIL 30, ARMORING OF THE SEED BED WILL BE
<br />NECESSARY (E.G. GEO TEXTILES, JUTE MAT, CLEAR PLASTIC COVERING).
<br />4. BEFORE SEEDING, INSTALL NEEDED SURFACE RUNOFF CONTROL MEASURES SUCH AS GRADIENT
<br />TERRACES, INTERCEPTOR DIKES, SWALES, LEVEL SPREADERS, AND SEDIMENT BASINS.
<br />5. THE SEED BED SHALL BE FIRM WITH A FAIRLY FINE SURFACE, FOLLOWING SURFACE ROUGHENING.
<br />PERFORM ALL OPERATIONS ACROSS OR AT RIGHT ANGLES TO THE SLOPE.
<br />6. FERTILIZERS ARE TO BE USED ACCORDING TO SUPPLIERS RECOMMENDATIONS. AMOUNTS USED SHOULD
<br />BE MINIMIZED, ESPECIALLY ADJACENT TO WATER BODIES AND WETLANDS.
<br />7. SEED SHALL NOT BE USED IN AREAS SUBJECT TO WEAR BY CONSTRUCTION TRAFFIC.
<br />B. APPLICABLE IN AREAS OF 10% OR LESS SLOPE FOR A MAXIMUM HORIZONTAL DISTANCE OF 100 FEET.
<br />IN STEEPER AREAS (>10% SLOPE), USE MULCH, NETTING, OR OTHER TREATMENTS SPECIFICALLY
<br />DESIGNED FOR STEEPER AND LONGER SLOPES.
<br />SEED MIXTURE FOR EROSION CONTROL
<br />NAME PROPORTIONS PERCENT PERCENT
<br />BY WEIGHT PURITY GERMINATION
<br />REDTOP (AGROSI1S ALBA) 10% 92% 65%
<br />ANNUAL RYE (LOLIUM 40% 96% 90%
<br />MULTIFLORUM)
<br />CHEWING FESCUE (FESTUCA 40% 98% 90%
<br />RUBRA COMMUTATA)
<br />WHITE DUTCH CLOVER 10% 96% 90%
<br />(TRIFOLIUM REPENS)
<br />MULCHING
<br />1. MULCH MATERIALS USED SHALL BE STRAW OR WOOD CELLULOSE FIBERS, AND SHALL BE APPLIED PER
<br />2016 WSDOT STANDARD SPECIFICATION 9-14 EROSION CONTROL AND ROADSIDE PLANTING. PROVIDE
<br />SOLID COVER OVER FINISH GRADE.
<br />2. MULCHING SHALL BE USED IMMEDIATELY AFTER SEEDING OR IN AREAS WHICH CANNOT BE SEEDED
<br />BECAUSE OF THE SEASON.
<br />3. ALL AREAS NEEDING MULCH SHALL BE COVERED BY OCTOBER 31.
<br />r -
<br />r� . u
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<br />4
<br />2 T IN ,,
<br />LENGTH AS REQUIRED 100' 1IN, EXCEPT
<br />I \ Y
<br />MAY RE REDUCED TO 50' MIN FOR f, °�
<br />SITES WITH LESS THAN CANE ACME
<br />$Epi�^if�`I
<br />T`$i&..Y�R
<br />OF EXPOSED SOIL OR APPROVED BY INSPECTOR
<br />PLACECONJSTRU :TION GEOTEXTILE FOR SOIL
<br />STABILIZATION FROM THE EDGE OF THE EXISTING
<br />F60AITVAY TO THE CONSTRUCTION ICT°ION ENTRANCE,
<br />OR AS DIRECTED BY THE ENGINEER
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<br />ISOMETRIC VIA
<br />CONSTRUCTION ENTRANCE
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<br />NOTES
<br />1. STABILIZED CONSTRUCTION! ENTRANCE SHALL.
<br />MEET THE REQUIREMENTS OF WSDOT STANDARD
<br />SPECIFICATION SECTION 8-01. (7).
<br />INSTALL DRIVEWAY CULVERT
<br />IF THERE IS A ROADSIDE DITCH
<br />PRESENT
<br />30' MIN TYPICAL.
<br />PERMEABLE
<br />STANDARD SPECIFICATION
<br />SECTION 9-03.9(2)
<br />PROVIDE FULL VVID T H OF
<br />INGRESS/EGRESS AREA:
<br />W MIN
<br />NOTES ATTACH IN A MANNER THAT POST SEE WSDOT STANDARD NOTES
<br />fir" MAX-` CATCH BASIL INSERTS SHALL E REMOVED AT THES I ,� � . INSTALL THE EI�i35 t F THE SILT FENCE TO POINT
<br />ASSURES FABRIC IS FIRMLY MLY SPECIFICATIONS 8R01,9(9)A I SLIGHTLY :IDS 0 EPREVENTS Its NT
<br />END OF THE PROJECT. FIELD BY THE BACKUP L H LY U L P TO SEDIMENT FROM
<br />DRAINAGE AINAOE CRATE TRIM SUPPORT IN A L AY _H T FLOWING ;AROUND THE ENDS OF THE FENCE.
<br />2. CATCH BASIN INSERTS ARE ONLY TO BE IIt�ISTALLED IN € A
<br />REDUCES THE POTENTIAL
<br />DRAINAGE E DEVICES S PER THE MAIVL7FACTURES'S I FOR FABRIC TEA 2, PERFORM MAINTENANCE IN ACCORDANCE WITH
<br />RECOMMENDATIONS. CATCH BASIN INLET INSERTS TEARING
<br />FASTEN GEOTEXTILE TO WSDOT STANDARD SPECIFICATIONS 8-01.9 9 A
<br />GRAT E FRAME SHALL BE INSTALLED IN CURB INLETS.
<br />OVERFLO BYPASS � POST EVERY IN O.C. AND I3-iI1 3(15�.
<br />BELOW INLET` ELATE BACKUP �[ SUPPORT
<br />-: . BATCH BASIL INSERTS SHALT BE INSTALLED PRIOR TO PIER
<br />SEDIMENT I. SPLICES SHALL NEVER BE PLACED IN LOW SPOTS
<br />.. ,:. DEVICE '�
<br />_ gig.
<br />:;= ., CLEARING AND CRADII'�IC ACTIVITY, OR �IIPOI� OR SUMP LOCATIONS. IF SPLICES RE LOCATED IN
<br />AND DEBRIS -.,.." N A AT
<br />PLACEMENT OF A NEW CATCH BASIN, LOW OR SUMP AREAS THE FENCE MAY NEED TO
<br />- a J
<br />�. BACI(i'ILLIwI rrs y
<br />t BE REINSTALLED UNLESS OTHERWISE APPROVED.
<br />FILTERED WATER , .�--`---� SELF-LOCKING TIE NYLOi�E
<br />3 K 4. SEDIMENT` SHALL BE REMOVED FROM THE UNIT COMPACTED
<br />t, /(MINGRADE)
<br />WHEN IT BECOMES ONE THIRD FULL I NATIVE
<br />U I� 6J N T I~ SO)I. GEO`I"EX`ILE �- 4. INSTALL SILT FENCING PARALLEL TO MAPPED
<br />' . 0 MIN TENSILE STRENGTH,
<br />4 ACCORDANCE tIVIT�I 1"I°I'E I�AI�IiJEACTl1Ply5 �: A. � � CONTOUR I.II�E.
<br />INSTRUCTIONS. �
<br />U STABILIZED
<br />X-�
<br />ow
<br />S. DURING EXCAVATION, MINIMIZE DISTURBING
<br />S. SEDIMENT REMOVAL. SHALL BE ACCOMPLISHED BY
<br />THE GROUND AROUND TRENCH AS MUCH AS IS
<br />REMOVING THE INLET INSERTS, EMPTYING, AND � � � FEASIBLE, AND SMOOTH SURFACE FOLLOWING
<br />REA NSTAL LING IT INTO THE CATCH BASIN. DO NOT EXCAVATION TO AVOID CONCENTRATING FLOWS,
<br />w WASH SEDIMENT INTO STORM DRAINS WHILE COMPACTION MUST BE ADEQUATE UATE TO PREVENT
<br />CLEANING, BURY GEOTEXTILE UNDERCUTTING FLOVIS,
<br />IN TRENCH_
<br />r . SIZE THE BELOW +` INLET GRATE DEVICE (BIGD) FOR THE � �� BACKUP SUPPORT
<br />STORM WATER STRUCTURE IT WILL SERVICE, GEOTEXTILE FOR SILT FENCE
<br />(TYF*ICAL)
<br />�.,. . t C' STEEL POST
<br />SEI� STANDARD sPECIFICATIOIN "�;.
<br />7. THE BL D SHALL. HAVE A BUILT-IN HIGH -FLOW OW RELIEF SECTION - (1�, TABU 6 .� � (T YPICAI } �
<br />SYSTEM (OVERFLOW BYPASS).
<br />SECTION VIA !
<br />8. THE RETRIEVAL. SYSTEM MUST ALLOW REMOVAL O
<br />THE BIGD WITHOUT SPILLING THE COLLECTED
<br />MATERIAL.
<br />TYPICAL INSTALLATION DETAIL
<br />� � ���m� , C, FABRIC
<br />T IFtf _ . PERFORM MAINTENANCE IN ACCORDANCE WITH (GEOTEXTILE)
<br />ET RETRIEVAL SYSTEM STANDARD SPECIFICATION 8-01. (1.5). �� (TYPICAL)
<br />INSTALL BACKUP SUPPORT FOR
<br />ti THE GEOTEXTILE SEE STANDARDDRAINA E GRATE
<br />SPECIFICATION SECTION .01.3(9)A
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<br />� �"�- . s'` VVITI' BACKUP SUPPORT
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