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T.E.S.C. NOTES
<br />1. APPROVAL OF THIS EROSION/SEDIMENTATION CONTROL (ESC)
<br />PLAN DOES NOT CONSTITUTE AN APPROVAL OFPERMANENT
<br />ROAD OR DRAINAGE DESIGN (E.G. SIZE AND LOCATION OF ROADS,
<br />PIPES, RESTRICTORS, CHANNELS, RETENTION FACILITIES,
<br />UTILITIES).
<br />2. THE IMPLEMENTATION OF THESE ESC PLANS AND THE
<br />CONSTRUCTION, MAINTENANCE, REPLACEMENT, AND UPGRADING
<br />OF THESE ESC FACILITIES IS THE RESPONSIBILITY OF THE
<br />APPLICANT/CONTRACTOR UNTIL ALL CONSTRUCTION IS
<br />COMPLETED AND APPROVED AND VEGETATION/LANDSCAPING IS
<br />ESTABLISHED.
<br />3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN
<br />SHALL BE CLEARLY FLAGGED IN THE FIELD PRIOR TO
<br />CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO
<br />DISTURBANCE BEYOND THE FLAGGED CLEARING LIMITS SHALL BE
<br />PERMITTED. THE FLAGGING SHALL DE MAINTAINED BY THE
<br />APPLICANT/CONTRACTOR FOR THE DURATION OF
<br />CONSTRUCTION.
<br />4. THE ESC FACILITIES SHOWN ON THIS PLAN MUST BE
<br />CONSTRUCTED IN CONJUNCTION WITH ALL CLEARING AND
<br />GRADING ACTIVITIES, AND IN SUCH A MANNER AS TO ENSURE
<br />THAT SEDIMENT AND SEDIMENT LADEN WATER DO NOT ENTER
<br />THE DRAINAGE SYSTEM, ROADWAYS, OR VIOLATE APPLICABLE
<br />WATER QUALITY STANDARDS.
<br />5. THE ESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM
<br />REQUIREMENTS FOR ANTICIPATED SITE CONDITIONS. DURING
<br />THE CONSTRUCTION PERIOD, THESE ESC FACILITIES SHALL BE
<br />UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND
<br />TO ENSURE THAT SEDIMENT AND SEDIMENT -LADEN WATER DO
<br />NOT LEAVE THE SITE.
<br />6. THE ESC FACILITIES SHALL BE INSPECTED ROUTINELY AND
<br />MAINTAINED BY THE APPLICANT/CONTRACTOR TO ENSURE THEIR
<br />CONTINUED FUNCTIONING, ESPECIALLY AFTER STORM EVENTS.
<br />7. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED
<br />AND MAINTAINED A MINIMUM OF ONCE A MONTH OR WITHIN THE
<br />48 HOURS FOLLOWING A MAJOR STORM EVENT,
<br />3. AT NO TIME SHALL MORE THAN ONE FOOT OF SEDIMENT BE
<br />ALLOWED TO ACCUMULATE WITHIN A TRAPPED CATCH BASIN. ALL
<br />CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED
<br />PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH
<br />SEDIMENT LADEN WATER INTO THE DOWNSTREAM SYSTEM.
<br />9. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT
<br />THE BEGINNING OF CONSTRUCTION AND MAINTAINED FOR THE
<br />DURATION OF THE PROJECT. ADDITIONAL MEASURES MAY BE
<br />REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN
<br />FOR THE DURATION OF THE PROJECT.
<br />10. THE CONTRACTOR SHALL PROVIDE PERIODIC STREET CLEANING
<br />TO REMOVE DEBRIS AND SEDIMENT TRACKED OFF THE SITE.
<br />11. APPROPRIATE MEASURES SHALL BE TAKEN TO STOP SEDIMENT
<br />FROM ENTERING SURFACE WATER BODIES IF THE PROPOSED
<br />BMPS FAIL.
<br />12. BARE AND/OR DISTURBED SOILS SHALL REMAIN UNCOVERED
<br />AND/OR UNSTABILIZED FOR NO MORE THAN 2 DAYS FROM
<br />OCTOBER 1 THROUGH APRIL 30, AND FOR NO MORE THAN 7 DAYS
<br />FROM MAY 1 THROUGH SEPTEMBER 30.
<br />'Know whars below.
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<br />CITY OF
<br />EVERETT,
<br />SNOHOMISH COUN
<br />COMMON NAME
<br />% %
<br />BY WEIGHT PURITY
<br />%
<br />GERMINATION
<br />REDTOP (Agostis alba)
<br />10 92
<br />90
<br />ANNUAL RYE (Lclium multiforum)
<br />45 98
<br />90
<br />CHEWING FESCUE (Festuca rubra ccmmutata)
<br />(Jamestown, Banner, Shcdcw, or Koket)
<br />45 97
<br />30
<br />3. APPLICATION TO BE 100LBS/ACRE
<br />4. 500 LBS/ACRE 10-20-20 FERTILIZER, 1500 LBS/ACRE WOOD FIBER CELLULOSE WITH SOIL BINDER
<br />OR TACKING AGENT TO BE APPLIED WITH SEED MIXTURE.
<br />5. SEED BEDS PLANTED BETWEEN MAY 1 AND AUGUST 31 WILL REQUIRE IRRIGATION AND OTHER
<br />MAINTENANCE AS NECESSARY TO FOSTER AND PROTECT THE ROOT STRUCTURE.
<br />6. FOR SEED BEDS PLANTED BETWEEN OCTOBER 31 AND APRIL 30, ARMORING OF THE SEED BED
<br />WILL BE NECESSARY. (E.G., GEOTEXTILES, JUTE MAT CLEAR PLASTIC COVERING.)
<br />7, BEFORE SEEDING, INSTALL NEEDED SURFACE RUNOFF CONTROL MEASURES SUCH AS
<br />GRADIENT TERRACES, INTERCEPTOR DIKES, SWALES, LEVEL SPREADERS AND SEDIMENT
<br />BASINS.
<br />6. THE SEEDBED SHALL BE FIRM WITH A FAIRLY FINE SURFACE, FOLLOWING SURFACE
<br />ROUGHENING. PERFORM ALL OPERATIONS ACROSS OR AT RIGHT ANGLES TO THE SLOPE.
<br />9. FERTILIZERS ARE TO BE USED ACCORDING TO SUPPLIERS RECOMMENDATIONS. AMOUNTS
<br />USED SHOULD BE MINIMIZED, ESPECIALLY ADJACENT TO WATER BODIES AND WETLANDS.
<br />% SEED SHALL NOT BE USED IN AREAS SUBJECT TO WEAR BY CONSTRUCTION TRAFFIC.
<br />ATTACH IN A MANNER THAT
<br />ASSURES FABRIC IS FIRMLY
<br />HELD BY THE BACKUP
<br />SUPPORT IN A WAY THAT
<br />REDUCESTHE POTENTIAL
<br />FOR FABRIC TEARING
<br />BACKUP SUPPORT _._...
<br />[I
<br />BACKFILLED &
<br />COMPACTED ',11111
<br />NATIVE SOIL — aECTExTIL
<br />BURY GEOTEXTILE
<br />IN TRENCH —
<br />POST SEE wSDOT STANDARD
<br />SPECIFICATION B-01,3(9)A
<br />FASTEN GEtOTEXTILE TO
<br />POST EVERY 6- IN o.c,
<br />SELF-LOCKING TIE -NYLONS
<br />6/6 (MfN GRADE)
<br />1200 MIN TENSILE STRENGTH,
<br />UV STABILIZED
<br />TYPICAL INSTALLATION DETAIL
<br />INSTALL BACKUP SUPPORT FOR
<br />THE GECOTEXTILE SEE STANDARD
<br />SPECIFICATION SECTION 8,01.3(9)A
<br />a
<br />fig
<br />SILT FENCE,
<br />NOT TO SCALE
<br />GEGTEXTILE FOR SILT FENCE
<br />SEE STANDARD SPECIFICATION
<br />SECTION 9-33.2 (1), TABLE,6
<br />./ A
<br />J
<br />r
<br />M
<br />TYPICAL SILT FENCE
<br />WITH BACKUP SUPPORT
<br />I+tIE`1'I
<br />OIL
<br />2' SETTLING DEPTH I
<br />I�- 4'
<br />3 I MtN . Ay(IF NEEDED)
<br />OUT FLOW CHANNEL
<br />IS CQNSTRUCTED
<br />13YEXCAVATION
<br />14
<br />1 r 1 OF QUARRY FILTER FABRIC
<br />WASHED ROCK SPALLS FENCING I"i/IARIA
<br />0,5' a 1,5' SEDIMFENT 140NS OR EQUAL
<br />STORAGE (MIN.
<br />SOIL TYPE DEFENDANT
<br />CROSS SVCTION
<br />SEDIMENT TRAP
<br />NOT TO SCALE PER DOE BMP C240
<br />NOTES
<br />1., INSTALL THE ENDS OF THE SILT FENCE TO POINT'
<br />SL[GHTLC UPSL PE TO PREVENT SEDIMENT FROM
<br />FLOWING AROUND THE ENDS OF THE FENCE_,
<br />2. PERFORM MAINTENANCE IN ACCORDANCE WITH
<br />ISD OT STANDARD SPECIFICATIONS 8 01,3(9),
<br />AND
<br />1 SPLICES SHALL NEVER BE PLACED IN LOW SPOTS
<br />OR SUMP LOCATIONS. IF SPLICES ARE LOCATED IN
<br />LOW OR SUMP AREAS, THE FENCE (I,'IAY NEED TO
<br />BE RONSTALLED UNLEaSS OTHERWISE APPROVED.
<br />zE INSTALL SILT FENCING PARALLEL TO MAPPED
<br />CONTOUR LINES.
<br />S. DURING EXCAVATION, MINIMIZE DISTURBING
<br />THE GROUND AROUND TRENCH AS MUCH A5 IS
<br />FEASIBLE, AND SMOOTH SURFACE FOLLOWING
<br />EXCAVATION TO AVOID CONCENTRATING FLOWS.
<br />COMPACTION MUST BE ADEQUA1 E TO PREVENT`
<br />UNDERCUTTING FLOWS.
<br />BACKUP SUPPORT
<br />STEEL POST (TYPICAL)
<br />r I
<br />J t
<br />Cit
<br />FABRIC
<br />C
<br />�{`L
<br />(GEGTEXTILE)
<br />(roF({
<br />SPLICED FENCE SECTIONS SHALL BE CLOSE ENOUGH TOGETH R
<br />TO PREVENT SILT LADEN WATER FROM ESCAPING THROUGH THE
<br />FENCE AT THE OVERLAP,
<br />SPLICE DETAIL
<br />WSDOT STD PLAN 1-30.10 02 ACCEPTABLE SUBSTITUTE
<br />EXCEPT STEEL POST REQUIRED
<br />Z' GF T TLll'
<br />SILO MENT TO�PA 1
<br />NOT TO SCALE
<br />e€ a
<br />TACOMA ° SEATTLE SPO NE ® TRI•-CITIES
<br />2215 North 30th Street, Suite 300 Tacoma, WA 93403
<br />253.383.2422 TEL 253.383,2572 FAx www.ahbl.com WEB
<br />Project `Mlle:
<br />Client:
<br />D UVALL ROAD,
<br />Pr�ct No-
<br />9/15/2020
<br />r rl;��Aa Ely
<br />OT WA
<br />A
<br />I
<br />Sheet Title:
<br />TESC NOTES AND
<br />DETAILS
<br />Designed by: Dram by- Checked by:
<br />TDW/RKJ TDW/TDS BEB
<br />DATE: July 24, 2020 FILENAME: Q:\201312130309\10—CIV\CAD\2180309—SH-TESC-DETL.dwg
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