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<br />REFUSE
<br />UTUTIES GENERAL NOTES:
<br />1 . WHERE REFUSE IS ENCOUNTERED WITHIN UTILITY EXCAVATIONS HANDLING,
<br />STOCKPILING AND DISPOSAL OF THE REFUSE SHALL BE COMPLETED PER
<br />THE REQUIREMENTS OF THE CONSENT DECREE AND THE APPROVED
<br />HEALTH AND SAFETY PLAN. SEE DWG. NO. RP1 FOR REFUSE DISPOSAL
<br />NOTES
<br />ENCOUNTERED AT THE PIPE INVERT ELEVATION DURING
<br />EXCAVATION SHALL BE OVER
<br />-EXCAVATED DEPTH
<br />INCHES BELOW THE PROPOSED PIPE BEDDING
<br />WIDTHBELOW THE BASE OF THE PIPE). OVER -EXCAVATION SHALL EXTEND THE
<br />FULL
<br />BE
<br />PR
<br />EPARED WITH A M�RAFIO 50OX (OR APPROVED EQUIVALENT)
<br />SEPARATOR"B
<br />MA
<br />TERIAL
<br />FOUNDATION MATERIAL SHALL BE
<br />BEDDING.POSSIBLE PRIOR TO PLACING THE PIPE ZONE
<br />SOILS3. THE NEAR SURFACE FILL Er ALONG THE PROPOSED
<br />SUITABLEUTILITY ALIGNMENTS WILL PROVIDE '"O
<br />UTILITIES ID ASSOCIATEDPROPERLY
<br />EXCAVATED AND PREPARED. RIARE COMPETENT AS
<br />APPROVED BY THE GEOTITCHNICALBEDDING A
<br />DIRECTLYBE PLACED UNDISTURBED
<br />BE BACKFILLED WITH GRAVEL BORROW D BY THE
<br />GEOTECHNICAL ENGINEER.
<br />Revision
<br />16. FROM OCTOBER 1 TO APRIL 30, NO SOIL MAY REMAIN EXPOSED FOR
<br />MORE THAN 2 DAYS, GROUND COVER BMPS SHALL BE USED TO
<br />STABILIZE THE SOIL WITHIN THE STATED TIME FRAME OR SOONER IF
<br />WARRANTED BY WEATHER REPORTS OR CONDITIONS. APPLY 399 DEPTH
<br />WOOD CHIPS OR 4" DEPTH STRAW MULCH FOR TEMPORARY
<br />STABILIZATION.
<br />17. EXCESS MATERIALS AND ANY LANDFILL WASTE MATERIAL SHALL BE
<br />DISPOSED OF ON -SITE. LOCATIONS FOR ON -SITE (BURY SHALL BE
<br />IDENTIFIED AND APPROVED BY THE ENGINEER PRIOR TO EXCAVATION.
<br />18. ADDITIONAL POLLUTION PREVENTION REQUIREMENTS ARE INCLUDED IN
<br />THE PROJECT SURFACE WATER POLLUTION PREVENTION PLAN (SWPPP),
<br />INCLUDING MATERIAL HANDLING, SAMPLING, MAINTENANCE„ AND REPORTING
<br />REQUIREMENTS. A COPY OF THE APPROVED SWPPP SHALL BE
<br />MAINTAINED ONSITE THROUGH THE ENTIRETY OF CONSTRUCTION.
<br />19. CLEARING LIMITS SHALL BE FENCED WITH ORANGE BARRIER FENCING, OR
<br />OTHER MEANS APPROVED BY THE OWNER, PRIOR TO BEGINNING
<br />CLEARING OR EARTHWORK ACTIVITIES. CLEARING LIMITS SHALL BE
<br />REVIEWED WITH THE OWNER AND ADJUSTMENTS MADE TO THE
<br />PROTECTION LIMITS AND TREES TO BE PROTECTED PRIOR TO CLEARING
<br />THE SITE.
<br />20. EXISTING VEGETATION SHALL BE PROTECTED AND RETAINED TO THE
<br />MAXIMUM EXTENT FEASIBLE.
<br />ISK G E 9STNG VEGETATION
<br />PART 1 - GENERAL
<br />1.1 SUMMARY
<br />THIS SECTION DESCRIBES GENERAL REQUIREMENTS FOR DISKING
<br />EXISTING VEGETATION.
<br />1.2 DEFINITIONS
<br />A. DISKING: CHURNING THE TOP 4- TO 6-INCHES OF THE SURFACE, WITH
<br />THE INTENTION OF BLENDING SHORT GRASS AND A THIN LAYER OF
<br />ROOT MASS WITH THE SUBSURFACE MATERIAL.
<br />B. VEGETATION: GRASS NO TALLER THAN 2 INCHES, AND ITS ROOTS.
<br />C. MOWING- THE CUTTING OF GRASS TO A HEIGHT NOT GREATER THAN 2
<br />INCHES.
<br />1.3 SEQUENCING AND SCHEDULING
<br />k THE CONTRACTOR SHALL ONLY DISK AREAS THAT ARE TO BE
<br />IMMEDIATELY WORKED ON.
<br />B. BEFORE EXCAVATION OR FILL PLACEMENT CAN BEGIN WITHIN A PLANNED
<br />AREA OF WORK, THE AREA MUST BE DISKED. AREAS TO BE EITHER
<br />DISKED OR CLEARED AND GRUBBED SHOULD BE CLEARLY SHOWN IN
<br />THE CONTRACT DOCUMENTS, IF THE AREAS ARE NOT CLEAR IN THE
<br />CONTRACT DOCUMENTS, THE CONTRACTOR SHALL OBTAIN DIRECTION
<br />FROM THE ENGINEER ON HOW TO PREP THE SITE BEFORE STARTING
<br />WORK IN THAT AREA.
<br />PART 3 - EXECUTION
<br />3.1 GENERAL
<br />A. VERIFICATION OF CONDITIONS-
<br />1. VERIFY ALL LINES, LIMITS AND GRADES PRIOR TO BEGINNING DISKING
<br />EXISTING VEGETATION.
<br />3.2 PROTECTION
<br />k ALL STREETS, ROADS, GRADING, STRUCTURES, UTILITIES, MONITORING
<br />WELLS, AND OTHER IMPROVEMENTS NOT SPECIFICALLY DESIGNATED TO
<br />BE MOWED, CLEARED, REMOVED, STRIPPED OR ALTERED AS A PART OF
<br />THE WORK SHALL BE PROTECTED FROM DAMAGE THROUGHOUT THE
<br />CONSTRUCTION PERIOD. ANY DAMAGE CAUSED BY THE CONTRACTOR,
<br />HIS EMPLOYEES, AGENTS, OR ANY LOWER TIERED SUBCONTRACTORS
<br />SHALL BE IMMEDIATELY REPAIRED TO THE ORIGINAL CONDITION AND TO
<br />THE SATISFACTION OF THE ENGINEER OR REPRESENTATIVE AT THE
<br />CONTRACTORS COST. COMPLETED WORK (E.G. EARTHWORK AND
<br />FOUNDATIONS) SHALL BE PROTECTED FROM WETTING, DRYING AND
<br />FREEZING BY PROVIDING TEMPORARY DRAINAGE FEATURES AND
<br />BLANKETS OR PROTECTIVE COVER SOIL LAYERS AS NECESSARY.
<br />3.3 DISKING EXISTING VEGETATION
<br />A. THE CONTRACTOR SHALL DISK EXISTING VEGETATION IN ALL AREAS OF
<br />PROPOSED FILL PLACEMENT PRIOR TO PLACEMENT OF FILL. DISKING
<br />SHALL NOT START UNTIL THE SURFACE VEGETATION IS MOWED TO A
<br />MAXIMUM HEIGHT OF 2 INCHES. DISKING SHALL CONTINUE UNTIL THE
<br />UPPER 4- TO 6-INCHES OF SOIL, VEGETATION AND ROOT MASS ARE
<br />THOROUGHLY MIXED.
<br />B. DISKING EXISTING VEGETATION WORK INCLUDES:
<br />1. PROTECTING FROM HARM ALL OBJECTS SELECTED TO REMAIN.
<br />2. MOWING THE AREA PRIOR TO DISKING.
<br />OO NTN NON G E CY PLAN:
<br />DAN LY MANTENANI O E:
<br />IN THE EVENT THAT WATER QUALITY MONITORING INDICATES THAT TURBID
<br />ROADS ALONG CONTRACTOR'S HAUL
<br />ROUTE SHALL RE SWEPT OFF AND/OR
<br />RUNOFF IS LEAVING THE SITES
<br />CLEARED OF DEBRIS EVERYDAY.
<br />1, COVER ALL AREAS OF EXPOSED SOIL WITH PLASTIC
<br />SHEETING. PLASTIC
<br />SHOULD HAVE SUFFICIENT STAKED SAND BAGS AND
<br />OVERLAPPED JOINTS
<br />SLATE
<br />EROSNON CONTROL
<br />AND WATER OUAUTY
<br />TO PREVENT WIND BLOW -OFF.
<br />ENFORCEMENT:
<br />2, PUMP ALL TURBID RUNOFF FROM DETENTION POND
<br />TO WATER TRUCK
<br />FOR OFF SITE DISPOSAL. NO OTHER WORK ACTIVITY
<br />SHALL BE PERMITTED
<br />CITY OF EVERETT AND THE STATE DEPARTMENT OF ECOLOGY WILL
<br />UNTIL WATER QUALITY MONITORING INDICATES THAT
<br />CLEAN RUNOFF IS
<br />COORDINATE NATE ENFORCEMENT EFFORTS
<br />FOR WATER QUALITY AND EROSION
<br />LEAVING THE SITE.
<br />CONTROL,
<br />C N ROL AS DEFINED IN THE CITY
<br />-
<br />C� EVERETT DESIGN ANDCONSTRUCTION
<br />N
<br />STANDARDS AND THE CONSTRUCTION
<br />STORMWATER GENERAL PERMIT:
<br />WET SEASONS GRADING NOTES
<br />(OCTOBER 1 THROUGH APRIL 0
<br />1. THE CONSTRUCTION SEQUENCE SHALL BE MODIFIED TO MINIMIZE THE
<br />AREA OF UNSTABILIZED SOIL.
<br />2. EARTHEN AREAS THAT ARE SUBJECT TO CONTRIBUTING SEDIMENTS
<br />DURING STORM EVENT AND WHERE EARTH MOVEMENT IS NOT
<br />ANTICIPATED FOR 48-HOURS SHALL BE STABILIZED USING BMP
<br />MEASURES IN THE FOLLOWING NOTES.
<br />3. WET SEASON TESL MEASURES WILL BE EXPANDED TO INCLUDE
<br />a. INSTALL A SECOND SILT FENCE, 10-FEET INSIDE OF THE ORIGINAL
<br />SILT FENCE
<br />b. INSTALL A SEDIMENT POND DESIGNED TO ACCOMMODATE A 25-YR,
<br />24-HOUR STORM
<br />c. A PLAN TO PUMP WATER FROM THE SEDIMENT POND TO A
<br />GRASSY AREA ON THE SITE WHEN DISCHARGE FROM THE SEDIMENT
<br />POND IS 'MUDDY', PRIOR APPROVAL BY THE CITY REQUIRED.
<br />d. BUILDING MATERIALS SHALL BE STOCKPILED ON THE PAVED ROAD
<br />SURFACE (REDUCES "TRAFFIC" ON EARTHEN STRUCTURES)
<br />4. SOILS SHALL NOT BE DISTURBED EXCEPT FOR ACTUAL CONSTRUCTION
<br />ACTIVITIES. PARKING IS ALLOWED ONLY ON PAVED AND/OR ON GRAVEL
<br />SURFACES.
<br />5. SLOPES S% AND GREATER WITHOUT ESTABLISHED GROUNDCOVER WILL BE
<br />STABILIZED WITH PLASTIC SHEETING, 6-MIL (MINIMUM). THE SHEETING
<br />SHALL BE ANCHORED WITH SAND BAGS LOCATED 5-FEET APART ON THE
<br />PERIMETER AND 10-FEET ON CENTER OF THE REMAINDER OF THE
<br />SHEETING. MINIMUM OF 2-FEET OVERLAP IS REQUIRED FOR OVERLAPPING
<br />SHEETS.
<br />6. WATER DISCHARGED FROM THE SITE WILL BE MONITORED BY THE OWNER
<br />REPRESENTATIVE FOR TURBIDITY. MAXIMUM ALLOWABLE TURBIDITY OF
<br />DISCHARGED WATER WILL BE 25 NTU OR LOWER, OR 5 NTU BELOW
<br />BACKGROUND FOR RECEIVING BODY OF WATER, WHICHEVER IS HIGHER
<br />7. WHEN RAINFALL IS HEAVY (DEFINED AS RAINFALL HARD ENOUGH TO
<br />PRODUCE SEDIMENT RUN-OFF FROM EXPOSED DIRT), ALL EXPOSED
<br />EARTHWORK SHALL BE COVERED. NO OTHER CONSTRUCTION ACTIVITY
<br />SHALL OCCUR ON PERVIOUS SURFACES DURING THESE PERIODS OF
<br />HEAVY RAIN.
<br />S. ALL DRAINAGE SWALES SHALL BE FULLY VEGETATED. SWALES SHALL BE
<br />SODDED IF THE VEGETATION GROWING IN THE SWALE IS INSUFFICIENT TO
<br />PROVIDE WATER QUALITY AND TO PREVENT EROSION OF THE SWALE.
<br />9. SEE ALSO CONSENT DECREE FOR THE LANDFILL SITE ON NT2.
<br />WET SEASON UTUTY TRENCHNG NOTES
<br />(OCTOBEIR 1 THROUGH APRIL 00)®
<br />1. UTILITY INSTALLATION AND TRENCHING SHOULD BE SCHEDULED AROUND
<br />THE PREDICTED WEATHER FORECASTS. EXCAVATION OF UTILITY
<br />TRENCHES SHOULD BE LIMITED TO THE AMOUNT OF UTILITY THAT MAY
<br />BE INSTALLED AND DACKFILLED IN A DAY. PLASTIC SHEETING SHALL BE
<br />USED TO COVER ALL STOCKPILES THAT WILL REMAIN OVERNIGHT.
<br />SUFFICIENT PLASTIC SHEETING SHALL BE STOCKPILED ON SITE TO COVER
<br />ALL TEMPORARY STOCKPILED SOIL IN THE EVENT OF AN UNEXPECTED
<br />STORM EVENT. COMPLY WITH ALL REQUIREMENTS OF CHAPTER 296-155
<br />WAC, PART N, FOR ENSURING TRENCH SAFETY,
<br />.
<br />2. LIMIT EARTH DISTURBING ACTIVITIES TO DRY WEATHER DAYS.
<br />RE-ESTABLISH COVER AS SOON AS CONSTRUCTION ACTIVITY IS
<br />COMPLETE,
<br />3. COVER MEASURES SHALL BE RE -APPLIED IMMEDIATELY FOLLOWING THE
<br />COMPLETION OF THE WORK ACTIVITY. NO AREAS OF EXPOSED SOIL
<br />SHALL REMAIN UNCOVERED UNLESS ACTIVELY BEING WORKED.
<br />4. SEE ALSO CONSENT DECREE FOR THE LANDFILL SITE ON NT2.
<br />5. CRUSHED ROCK AS APPROVED BY THE GEOTECHNICAL ENGINEER SHALL
<br />BE USED FOR ALL UTILITY TRENCH BACKFILL DURING WET WEATHER,
<br />UNLESS AUTHORIZED OR APPROVED BY THE CITY, GEOTECHNICAL
<br />ENGINEER, AND OWNER.
<br />i � /� 9-A
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<br />,
<br />COMPACTION AND GRADING DOTES,
<br />1. ANY AREAS RECEIVING STOCKPILED/FILL MATERIAL TO BE PLACED AND
<br />COMPACTED, SHALL HAVE EXISTING VEGETATION TILLED INTO THE
<br />SUBGRADE PRIOR TO PLACEMENT OF SOIL. SEE ALSO DISKING EXISTING
<br />VEGETATION a
<br />NOT S THIS PAGE,
<br />NOTES,
<br />2. STRUCTURAL FILL IN TRENCHES, TEMPORARY ACCESS ROADS, PARKING,
<br />AND DRIVE LANES, SHALL BE COMPACTED TO MINIMUM 95% MODIFIED
<br />PROCTOR.
<br />3. GEOTECHNICAL TESTING SHALL BE COMPLETED PRIOR TO FILL
<br />PLACEMENT TO DETERMINE SOIL MOISTURE AND PLACEMENT
<br />REQUIREMENTS REQUIRED TO ACHIEVE SPECIFIED COMPACTION.
<br />
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