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1. ALL DISTURBED AREAS SUCH AS DETENTION FACILITIES, ROADWAY BACKSLOPES, ETC. SHALL
<br />BE SEEDED WITH A PERENNIAL GROUND COVER GRASS TO MINIMIZE EROSION. GRASS
<br />SEEDING WILL BE DONE USING AN APPROVED HYDROSEEDER OR AS OTHERWISE
<br />APPROVED BY THE CITY OF EVERETT (ONSITE) OR WSDOT (WITHIN WSDOT ROW).
<br />2. EFFECTIVE SEEDING IS BEST ACCOMPLISHED DURING THE MONTHS OF APRIL, MAY, JUNE AND
<br />SEPTEMBER. SEEDING DURING JULY AND AUGUST MAY REQUIRE SUBSTANTIAL IRRIGATION.
<br />SEE WINTER GRADING NOTE ABOVE.
<br />3. CONSTRUCTION ACCEPTANCE WILL BE SUBJECT TO A WELL ESTABLISHED GROUND COVER
<br />THAT FULFILLS THE REQUIREMENTS OF THE APPROVED CONSTRUCTION PLANS AND THE
<br />CITY OF EVERETT,
<br />4. IMMEDIATELY FOL0ARNG FINISH GRADING, PERMANENT VEGETATION (CONSISTING OF RAPID PERSISTENT AND LEGUME) WILL BE APPLIED (MINIMUM 30#f PER ACRE). EXCEPT AS NOTED
<br />W PLANS, THIS SHALL INCLUDE THE FOLLOWING MIX OF SEEDS: 20%ANNUAL, PERENNIAL
<br />OR HYBRID RYE GRASS, 40% CREEPING RED FESCUE, 40% WHITE CLOVER. PLANS MAY
<br />SPECIFY DIFFERENT PLANTINGS FOR SPECIALIZED AREAS SUCH AS BIOFILTRAT ION
<br />SWALES, DETENTION/INFILTRATION PONDS, WETLAND/BUFFER RESTORATION AREAS, ETC.
<br />5. ALL AREAS TO BE SEEDED SHALL BE CULTIVATED TO THE SATISFACTION FACTION OF THE CITY
<br />INSPECTOR. THIS MAY BE ACCOMPLISHED BY DISCING, RAKING, HARROWING OR OTHER
<br />ACCEPTABLE MEANS. PERFORM ALL CULTURAL OPERATIONS ACROSS OR AT RIGHT
<br />ANGLES TO THE SLOPE. IF NECESSARY, SURFACE RUNOFF CONTROL MEASURES SUCH AS
<br />GRADIENT TERRACES, INTERCEPTOR, DIKE/SWALES, LEVEL SPREADERS, AND SEDIMENT
<br />BASINS SHALL BE INSTALLED PRIOR TO SEEDING.
<br />6, FERTILIZER SHALL BE APPLIED AT 400## PER ACRE OF 10-20-20 (10 POUNDS PER 1100 SQUARE
<br />FEET) OR EQUIVALENT. DEVELOPMENTS ADJACENT TO WATER BODIES SHALL USE
<br />NON -PHOSPHORUS FERTILIZER,
<br />7, CONTRACTOR SHALL MONITOR GERMINATION AND GROWTH UNTIL GROUND COVER IS
<br />UNIFORMLY ESTABLISHED. THIN AREAS SHALL BE RESEEDED OR OVERSEEDED AS
<br />NECESSARY.
<br />GRADINGSITE
<br />'I . ALL GRADING SHALL COMPLY WITH CHAPTER A33 OF THE UNIFORM BUILDING CODE (CURRENT
<br />EDITION).
<br />2. PUBLIC STREETS ARE TO BE KEPT CLEAR OF DIRT AND DEBRIS DURING EXCAVATION AND
<br />FILL OPERATIONS.
<br />3. THE SITE SOILS ARE GENERALLY CONSIDERED MOISTURE SENSITIVE AND AS SUCH ARE
<br />SUSCEPTIBLE TO DISTURBANCE BY CONSTRUCTION EQUIPMENT, PARTICULARLY DURING
<br />PERIODS OF WET WEATHER. THE GRADING CONTRACTOR SHALL TAKE ALL PRECAUTIONS
<br />TO LIMIT SURFACE DISTURBANCE AND PROTECT THE SITE GRADING AREA FROM EXCESSIVE
<br />RUNOFF EROSION.
<br />4. AREAS TO RECEIVE FILL SHALL BE CLEARED OF ALL VEGETATION AND DELETERIOUS
<br />MATTER.
<br />5. AREAS TO RECEIVE FILL SHALL BE PROOFROLLED. ALL LOOSE AND SOFT AREAS SHALL BE
<br />REMOVED AND REPLACED WITH STRUCTURAL FILL.
<br />6, ALL FILL MATERIALS USED SHALL BE FREE OF VEGETATION AND DELETERIOUS MATTER
<br />AND SHALL NOT CONTAIN ROCKS GREATER THAN SIX INCHES IN DIAMETER,
<br />7. STRUCTURAL FILLS SHALL BE PLACED IN EIGHT TO 10 INCH THICK LOOSE HORIZONTAL
<br />LIFTS AND SPREAD UNIFORMLY,
<br />E. AFTER EACH LIFT HAS BEEN SPREAD EVENLY, IT SHALL BE COMPACTED TO A MINIMUM
<br />OF 95% OF MAXIMUM DENSITY DETERMINED IN ACCORDANCE WITH ASTM D'1557
<br />(MODIFIED PROCTOR).
<br />9. THE SURFACE OF ALL SLOPES SHALL BE COMPACTED. THIS MAY BE ACCOMPLISHED BY
<br />OVER -BUILDING THE SLOPES, THEN CUTTING BACK TO FINAL GRADES, OR BY RUNNING
<br />THE COMPACTOR OVER THE SLOPE AS EACH FILL LIFT IS BEING PLACED, ALL SLOPES
<br />r
<br />SHALL BE COMPACTED BY THE END OF EACH WORD DAY.
<br />10. FIELD DENSITY TESTS (IF REQUIRED) WILL BE MADE BY A QUALIFIED SOILS ENGINEERING
<br />FIRM. DENSITY TESTS SHALL BE TAKEN AT OR JUST BELOW THE SURFACE AT THE
<br />FREQUENCY AND LOCATIONS DETERMINED BY THE SOILS ENGINEERING FIRM. WHEN THE
<br />CT TESTS INDICATE THAT THE DENSITY OF ANY LAYER OF FILL OR PORTION THEREOF IS
<br />BELOW THE SPECIFIED DENSITY, THE PARTICULAR SECTION SHALL BE REWORKED UNTIL
<br />THE REQUIRED DENSITY HAS BEEN OBTAINED. ALL TEST RESULTS SHALL BE TRANSMITTED
<br />TO THE CITY OF EVERETT BUILDING DEPARTMENT.
<br />0
<br />11, A GRADING PERMIT AND APPROVAL OF THE TEMPORARY EROSION AND SEDIMENTATION
<br />CONTROL PLAN SHALL HAVE BEEN OBTAINED FROM THE CITY OF EVERETT FOR ANY
<br />ON -SITE GRADING.
<br />0 12. ALL CUT AND FILL SLOPES SHALL BE A MAXIMUM OF 2.:1.
<br />s 13. STOCKPILES ARE TO BE LOCATED IN SAFE AREAS AND ADEQUATELY PROTECTED TO PREVENT
<br />EROSION. HYDROSEED PREFERRED.
<br />_L.
<br />14. NO GRADING SHALL OCCUR WITHIN 2 FEET OF PROPERTY BOUNDARY WITHOUT WRITTEN
<br />APPROVAL OF ADJACENT OWNER.
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<br />EXISTING GROUND COVER
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<br />THE PREDOMINANT SOIL TYPE IS ALDERWOOD URBAN LAND COMPLEX GROUND COVER ON THE
<br />MAJORITY OF THE SITE IS SECOND GROWTH FOREST WITH TYPICAL NATURE UNDERSTORY AT
<br />FULL BUILDOUT THE SITE WILL HAVE A MAXIMUM IMPERVIOUS COVER OF 39%. THE REMAINDER
<br />OF THE SITE WILL BE LANDSCAPING.
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<br />LIMITSCLEARING
<br />a
<br />CLEARING LIMITS SHOWN ON PLAN REPRESENT MAXIMUM ALLOWABLE EXTENT OF CLEARING ON
<br />THE PROPERTY. OWNER MAY ELECT TO CLEAR LESS AREA WITHIN WSDOT RIGHT-OF-WAY.
<br />DRAINAGE FACILITY DESIGN IS BASED ON ASSUMPTION OF MAXIMUM ALLOWED ONSITE
<br />CLEARING AND HARDSCAPE.
<br />MARKING OF CLEARING LIMITS AND PLACEMENT OF EROSION CONTROL BMPS IN THE FIELD
<br />SHALL BE ADJUSTED FOR ACTUAL EXTENT OF CLEARING AS DIRECTED BY OWNER. CLEARING
<br />_ LIMITS SHALL BE CLEARLY MARKED IN FIELD PRIOR TO COMMENCEMENT OF SITE WORK.
<br />ALL POLLUTANTS, INCLUDING WASTE MATERIALS AND DEMOLITION DEBRIS, THAT OCCUR ONSITE
<br />SHALL BE HANDLED AND DISPOSED OF IN A MANNER THAT DOES NOT CAUSE CONTAMINATION
<br />OF STORMWATER. GOOD HOUSEKEEPING AND PREVENTATIVE MEASURES WILL BE TAKEN TO
<br />ENSURE THAT THE SITE WILL BE KEPT CLEAN, WELL ORGANIZED, AND FREE OF DEBRIS, IF
<br />REQUIRED, BMPS TO BE IMPLEMENTED TO CONTROL SPECIFIC SOURCES OF POLLUTANTS ARE
<br />DISCUSSED BELOW.,
<br />VEHICLES, CONSTRUCTION EQUIPMENT, AND/OR PETROLEUM PRODUCT STORAGE/DISPENSING:
<br />ALL VEHICLES, EQUIPMENT, AND PETROLEUM PRODUCT STORAGE/DISPENSING
<br />AREAS WILL BE INSPECTED REGULARLY TO DETECT ANY LEAKS OR SPILLS, AND TO
<br />IDENTIFY MAINTENANCE NEEDS TO PREVENT LEAKS OR SPILLS.
<br />Q ON -SITE FUELING TANKS AND PETROLEUM PRODUCT STORAGE CONTAINERS SHALL
<br />INCLUDE SECONDARY CONTAINMENT.
<br />0 SPILL PREVENTION MEASURES, SUCH AS DRIP PANS, WILL BE USED WHEN
<br />CONDUCTING MAINTENANCE AND REPAIR OF VEHICLES OR EQUIPMENT,
<br />0 IN ORDER TO PERFORM EMERGENCY REPAIRS ON SITE, TEMPORARY PLASTIC WILL BE
<br />PLACED BENEATH AND, IF RAINING, OVER THE VEHICLE.
<br />® CONTAMINATED SURFACES SHALL BE CLEANED IMMEDIATELY FOLLOWING ANY
<br />DISCHARGE OR SPILL INCIDENT.
<br />CHEMICAL STORAGE:
<br />0 ANY CHEMICALS STORED IN THE CONSTRUCTION AREAS WILL CONFORM TO THE
<br />APPROPRIATE SOURCE CONTROL BMPS LISTED IN VOLUME IV OF THE ECOLOGY
<br />STORMWATER MANUAL. IN WESTERN WA, ALL CHEMICALS SHALL HAVE COVER,
<br />CONTAINMENT, AND PROTECTION PROVIDED ON SITE, PER BMP C153 FOR MATERIAL
<br />DELIVERY, STORAGE AND CONTAINMENT IN SWMMUUW 2005
<br />® APPLICATION OF AGRICULTURAL CHEMICALS, INCLUDING FERTILIZERS AND
<br />PESTICIDES, SHALL BE CONDUCTED IN A MANNER AND AT APPLICATION RATES THAT
<br />WILL NOT RESULT IN LOSS OF CHEMICAL TO STORMWATER RUNOFF.
<br />MANUFACTURERS' RECOMMENDATIONS FOR APPLICATION PROCEDURES AND RATES
<br />SHALL BE FOLLOWED.
<br />DEMOLITION:
<br />® DUST RELEASED FROM DEMOLISHED SIDEWALKS SHALL BE CONTROLLED USING
<br />DUST CONTROL MEASURES (BMP C140).
<br />® STORM DRAIN INLETS VULNERABLE TO STORMWATER DISCHARGE CARRYING DUST,.
<br />SOIL, OR DEBRIS WILL BE PROTECTED USING STORM DRAIN INLET PROTECTION (BMP
<br />C220 AS INDICATED ON THE PLAN).
<br />® PROCESS WATER AND SLURRY RESULTING FROM SAWCUTTING AND SURFACING
<br />OPERATIONS WILL BE PREVENTED FROM ENTERING THE WATERS OF THE STATE BY
<br />IMPLEMENTING SAWCUTTING AND SURFACING POLLUTION PREVENTION MEASURES
<br />(BMP C152),
<br />1. SLURRY AND CUTTING SHALL BE VACUUMED DURING CUTTING AND SURFACING
<br />OPERATIONS.
<br />2. SLURRY AND CUTTINGS SHALL NOT DRAIN TO ANY NATURAL OR CONSTRUCTED
<br />DRAINAGE CONVEYANCE,
<br />3. COLLECTED SLURRY AND CUTTINGS SHALL BE DISPOSED OF IN A MANNER
<br />THAT DOES NOT VIOLATE GROUNDWATER OR SURFACE WATER QUALITY
<br />STANDARDS.
<br />CONCRETE AND GROUT:
<br />® PROCESS WATER AND SLURRY RESULTING FROM CONCRETE WORK WILL BE
<br />PREVENTED FROM ENTERING THE WATERS OF THE STATE BY IMPLEMENTING
<br />CONCRETE HANDLING MEASURES (BMP C151).
<br />1. CONCRETE TRUCK CHUTES, PUMPS, AND INTERNALS SHALL BE WASHED OUT
<br />ONLY INTO FORMED AREAS AWAITING INSTALLATION OF CONCRETE OR
<br />ASPHALT,
<br />2. UNUSED CONCRETE REMAINING IN THE TRUCK AND PUMP SHALL BE
<br />RETURNED TO THE ORIGINATING BATCH PLANT FOR RECYCLING.
<br />3. HAND TOOLS INCLUDING, BUT NOT LIMITED TO, SCREEDS, SHOVELS, RAKES,
<br />FLOATS, AND TROWELS SHALL BE WASHED OFF ONLY INTO FORMED AREAS
<br />AWAITING INSTALLATION OF CONCRETE OR ASPHALT.
<br />WHEN NO FORMED AREAS ARE AVAILABLE, WASTWATER AND LEFTOVER PRODUCT
<br />SHALL BE CONTAINED IN A LINED CONTAINER. CONTAINED CONCRETE SHALL BE
<br />DISPOSED OF IN A MANNER THAT DOES NOT VIOLATE GROUNDWATER OR SURFACE
<br />WATER QUALITY STANDARDS.
<br />SANITARY WASTEWATER:
<br />® PORTABLE SANITATION FACILITIES WILL BE. FIRMLY SECURED, REGULARLY
<br />MAINTAINED, AND EMPTIED WHEN NECESSARY.
<br />® SOLID WASTE WILL BE STORED IN SECURE, CLEARLY MARKED CONTAINERS.
<br />OTHER:
<br />OTHER BMPS WILL BE ADMINISTERED AS NECESSARY TO ADDRESS ANY ADDITIONAL
<br />POLLUTANT SOURCES ON SITE.
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<br />BEFORE ANY CLEARING GRADING
<br />TEMPORARY D MARKINGS AS FOLLOWS:
<br />1. CLEARING LIMITS AS SHOWN ON OR t } BY OWNER (LIMITS ON PLAN
<br />AREt•
<br />FEET ABOVE GROUND. CONTRACTOR MAY SUBSTITUTE CONSTRUCTION SILT FENCING
<br />FOR SURVEYOR'S .[ R
<br />COMMENCING CLEARING OR GRADING.
<br />SOIL
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<br />EX. UNDERGROUND UTILITY LOCATIONS SHOWN HEREON ARE BASED UPON SURFACE
<br />INDICATORS, NO UNDERGROUND LOCATE SERVICE WAS UTILIZED FOR THEIR LOCATION. THE
<br />USE OF THIS MAP FOR THEIR EXACT LOCATION IS NOT WARRANTED. PRIOR TO CONSTRUCTION,
<br />USER SHOULD CALL THE UTILITY LOCATE SERVICE AT 1-300-424-5555, TWO BUSINESS DAYS
<br />BEFORE CONSTRUCTION,
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<br />ALL TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE
<br />MAINTAINED AND REPAIRED AS NEEDED TO ASSURE CONTINUED PERFORMANCE OF THEIR
<br />INTENDED FUNCTION. FACILITIES SHALL BE INSPECTED AT A MINIMUM ON A WEEKLY BASIS AND
<br />IMMEDIATELY AFTER ANY RUNOFF PRODUCING RAIN EVENT. ALL MAINTENANCE AND REPAIR
<br />SHALL BE CONDUCTED IN ACCORDANCE WITH MARYSVILE STANDARDS, AT A MINIMUM, REPAIRS
<br />TO BMP'S SHALL TAKE PRECEDENT OVER OTHER SITE WORK AND COMPLETED PRIOR TO
<br />CLOSING THE SITE OF THE NIGHT. TRAPPED SEDIMENT MUST BE REMOVED OR STABILIZED ON
<br />SITE. DISTURBED SOIL AREAS RESULTING FROM REMOVAL SHOULD BE PERMANENTLY
<br />STABILIZED.
<br />HIGH VISIBILITY FENCING (BMP C103)
<br />INSPECT FENCING AND REPAIR DAMAGED SECTIONS,
<br />CONSTRUCTION ROAD STABILIZATION (BMP C107)
<br />INSPECT STABILIZED AREAS REGULARLY, ESPECIALLY AFTER LARGE STORM EVENTS, ADD
<br />GRAVEL IF NECESSARY AND RESTABILIZE ANY AREAS FOUND TO BE ERODING.
<br />BMP C120, TEMPORARY SEEDING OF STRIPPED AREAS
<br />SEEDING SHOULD BE SUPPLIED WITH ADEQUATE MOISTURE, SUPPLY WATER AS NEEDED,
<br />ESPECIALLY !IN ABNORMALLY RIOT OR DRY WEATHER OR ON ADVERSE SITES. WATER APPLICATION
<br />RATES SHOULD BE CONTROLLED TO PREVENT RUNOFF.
<br />RE -SEEDING - AREAS WHICH FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT
<br />EROSION SHALL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED.
<br />MULCHING (BMP C121)
<br />MULCHED AREAS SHOULD BE CHECKED PERIODICALLY, ESPECIALLY FOLLOWING SEVERE
<br />STORMS. DAMAGED AREAS OF MULCH OR TIE -DOWN MATERIAL SHALL BE IMMEDIATELY
<br />REPAIRED.
<br />PLASTIC COVERING (BMP C123)
<br />CHECK REGULARLY FOR RIPS AND PLACES WHERE THE PLASTIC MAY BE DISLODGED, CONTACT
<br />BETWEEN THE PLASTIC AND THE GROUND SHOULD ALWAYS BE MAINTAINED. ANY AIR BUBBLES
<br />FOUND SHOULD BE REMOVED IMMEDIATELY OR THE PLASTIC MAY RIP DURING THE NEXT WINDY
<br />PERIOD, RE -ANCHOR OR REPLACE THE PLASTIC AS NECESSARY,
<br />TOPSOILING (BMP C125)
<br />INSPECT FOR DAMAGE FROM RAINFALL AND SHEET FLOW. REGRADE AS NECESSARY.
<br />DUST CONTROL (BMP C140)
<br />RESPRAY AREA AS NECESSARY TO PREVENT WIND EROSION.
<br />STORM DRAIN INLET PROTECTION (BMP C220)
<br />FOR SYSTEMS USING FILTER FABRIC: INSPECTIONS SHOULD BE MADE ON A REGULAR BASIS,
<br />ESPECIALLY AFTER LARGE STORM EVENTS. IF THE FILTER BAG BECOMES CLOGGED, IT SHOULD
<br />BE CLEANED OR REPLACED.
<br />SILT FENCE (BLIP C233)
<br />INSPECT IMMEDIATELY AFTER EACH RAINFALL, AND AT LEAST DAILY DURING PROLONGED
<br />RAINFALL, REPAIR AS NECESSARY.
<br />SEDIMENT MUST BE REMOVED WHEN IT REACHES APPROXIMATELY ONE THIRD THE HEIGHT OF
<br />THE FENCE, ESPECIALLY IF HEAVY RAINS ARE EXPECTED,
<br />CONTRACTOR RESPONSIBILITY FOR
<br />-EROSION/SILTATION CONTROL
<br />SILTATIONIT IS THE INTENT OF THIS TEMPORARY EROSION AND O O PLAN THAT STORM
<br />RUNOFF BE CONTROLLED AT ALL O .i O MAINTAIN WATER QUALITY,
<br />ANY AND
<br />ALL MEASURES NECESSARY TO
<br />DO SO SHALL BE
<br />EMPLOYED BY THE i +O
<br />1. REGARDLESS SITE,O OTHER CONDI4
<br />RESPONSIBLE FOR ENSURING THAT EROSION DOES NOT OCCUR ON THE SITE D THAT POLLUTED
<br />OR M. RUNOFF# OR ENTER INTO ANY CREEK, STREAM, WETLAND
<br />OR WATER BODY ON OR OFF THE SITE.
<br />2. BEYOND THE MINIMUM REQUIREMENTS SHOWN ON THIS PLAN,THE CONTRACTOR SHALL BE
<br />RESPONSIBLE FOR SELECTING AND IMPLEMENTING APPROPRIATE
<br />'BEST MANAGEMENT
<br />PRACTICES" (BMPs), FOR STORM WATER TREATMENT DCONTROLIREQUIREMENTS
<br />ECOLOGYOF BOTH THE WASHINGTON STATE DEPARTMENT OF i
<br />EROSION3. THE CONTRACTOR SHALL REPORT ALL WATER QUALITY CONCERNS AND ACTIVITIES TO THE
<br />CERTIFIED D CONTROL D AND TO CITY OF EVERETT. IN THE
<br />INSTALLEDEVENT THAT THE WATER QUALITY CONTROL MEASURES ARE INEFFECTIVE ,
<br />CONTROLLING EROSION ! SILTATION,!IMMEDIATELY REPORT TO AND
<br />CONSULT WITH THE C.E.S.C.L. O FIND AN APPROPRIATEREMEDY. ALL CONSTRUCTION ACTIVITIES,
<br />WITH THE EXCEPTION _ AND SILTATION
<br />QUALITYTIME AS THE WATER D CITY OF EVERE 17
<br />4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MONITORING WEATHER FORECASTS AND
<br />ANTICIPATING STORM ACTIVITY AND SHALL SCHEDULE ALL PROJECT ACTIVITIES IN ANTICIPATION O:
<br />FABRIC,THE WEATHER.
<br />5ALL SUPPLIES AND MATERIALS NECESSARY FOR IMPLEMENTING BMPS SHALL BE STORED ON SITE
<br />AND SHALL BE IMMEDIATELY AVAILABLE FOR USE. SUCH SUPPLIES AND MATERIALS SHALL INCLUDE,
<br />BUT NOT BE LIMITED TO, STRAW BALES OR OTHER MULCHING MATERIAL, Slur FENCING AND STAKES,
<br />FILTER
<br />DURING AND CONTRACTOR MONITOR
<br />PRIORITIZEEROSION CONTROL MEASURES AND SHALL t p MAINTENANCE OF
<br />EROSION •
<br />HIGH VISIBILITY FENCING (BMP C103) USE IN COMBINATION WITH BMP C233, SILT FENCE AS
<br />INDICATED ON THE PLANS.
<br />CONSTRUCTION ROAD/PARKING AREA STABILIZATION (BMP C107)
<br />ONCE DEMOLITION IS COMPLETE, THE BUILDING FOUNDATIONS AND SLAB AREAS WILL BE
<br />STABILIZED WITH GRAVEL AND CONCRETE.
<br />TEMPORARY & PERMANENT SEEDING (BMP 3120)
<br />PERMANENT SEEDING SHALL BE USED TO STABILIZE EXPOSED SOILS AND SHALL BE
<br />PERFORMED UNDER THE DIRECTION OF THE LANDSCAPE PLANS AND SPECIFICATIONS.
<br />MULCHING (BMP C`I21)
<br />STABILIZE EXPOSED SURFACES WITH 4" STERILE STRAW MULCH WHEN SURFACES ARE TO
<br />BE UNWORKED FOR THE SEASONAL TIME FRAMES LISTED IN THE TESC NOTES AND SWPPP
<br />NARRATIVE.
<br />PLASTIC COVERING (BMP C123)
<br />USE PLASTIC SHEATHING TO PROTECT STOCKPILES, STABILIZE WITH SAND BAGS
<br />CONNECTED WITH ROPE.
<br />TOPSOILING/COMIPOSTING (BMP C125) TOPSOIL PROPOSED PLANTERS AND THE
<br />BIO-RETENTION AS NOTED,
<br />DUST CONTROL (BMP C140)
<br />CONTRACTOR SHALL IMPLEMENT MEASURES TO PREVENT WIND TRANSPORT OF DUST
<br />FROM SOIL SURFACES. SUCH MEASURES CAN INCLUDE BUT ARE NOT LIMITED TO THE
<br />FOLLOWING: MULCHING AREAS NOT USED FOR VEHICLE ACCESS, REDUCING SPEEDS ON
<br />HAUL ROADS, SPRINKLE EXPOSED SURFACES WITH WATER, SURFACE HAUL ROADS WITH
<br />GRAVEL.
<br />STORM INLET PROTECTION (BMP C220) PLACE INSERTS PER PLAN DETAIL IN EXISTING
<br />CATCH BASINS AS INDICATED ON THE PLAN,
<br />AS NEW CATCH BASINS ARE INSTALLED, THESE SHALL ALSO BE PROTECTED UNTIL THE
<br />DRAINAGE AREA IS STABILIZED.
<br />SILT FENCE (BMP C233) INSTALL SILT FENCE IN LOCATIONS INDICATED ON THE PLAN.
<br />SEDIMENT TRAPPING 2" MIN.
<br />AREA (TYP) 3" MAX.
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<br />21
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<br />NOTE
<br />1. INSTALL WATTLES SNUGLY INTO THE TRENCH. ABUT ADJACENT WATTLES TIGHTLY,
<br />END TO END, WITHOUT OVERLAPPING THE ENDS,
<br />2. LIVE STAKES MAY BE USED FOR PERMANENT INSTALLATIONS.
<br />3. PILOT HOLES MAY BE DRIVEN THROUGH THE WATTLE AND INTO THE SOIL, WHEN
<br />SOIL CONDITIONS REQUIRE,
<br />4. WATTLES SHALL BE INSPECTED REGULARLY, AND IMMEDIATELY AFTER A RUNOFF
<br />PRODUCING RAINFALL, TO ENSURE THEY REMAIN THOROUGHLY ENTRENCHED
<br />AND IN CONTACT WITH THE SOIL.
<br />5. PERFORM MAINTENANCE ON EROSION CONTROL DEVICES AS REQUIRED TO
<br />MAINTAIN PROPER FUNCTIONALITY. REFER TO WSDOT M41-10 STANDARD
<br />SPECIFICATIONS 3-01.3(15).
<br />WATTLE DETAIL
<br />NOT TO SCALE
<br />PLAN APPROVED
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