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SEDIMENT AND EROSION CONTROL NOTES 5 � '� UE � N 0 N SEDIMENT & EROSION CONTROL NARRATIVE 1. ALL INLET AND OUTLET PROTECTION SHALL BE PLACED AND MAINTAINED AS SHOWN ON SEDIMENT AND EROSION CONTROL TRANSFERRED. _C O -0 THE SEDIMENT AND EROSION CONTROL PLAN WAS DEVELOPED TO PROTECT THE EXISTING ROADWAY AND STORM DRAINAGE PLANS AND DETAILS, AND AS DESCRIBED IN SPECIFICATIONS AND AS DESCRIBED HEREIN. U O� > C SYSTEMS, ADJACENT PROPERTIES, AND ANY ADJACENT WETLAND AREA AND ANY ADJACENT WATER COURSE FROM SEDIMENT 3. AN EROSION CONTROL BOND MAY BE REQUIRED TO BE POSTED WITH THE CITY OF STOCKTON TO ENSURE IMPLEMENTATION Q w w 0 LADEN SURFACE RUNOFF AND EROSION. A CONSTRUCTION SEQUENCE IS PROVIDED TO PROVIDE SURFACE RUNOFF EROSION 2. NO CUT OR FILL SLOPES SHALL EXCEED 3:1 EXCEPT WHERE STABILIZED BY ROCK FACED EMBANKMENTS OR EROSION OF THE SEDIMENT AND EROSION CONTROL MEASURES. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE POSTING OF CONTROLS PRIOR TO THE BEGINNING OF PROJECT DEMOLITION AND/OR CONSTRUCTION. CONTROL BLANKETS, OR JUTE MESH AND VEGETATION. ALL SLOPES SHALL BE SEEDED, AND ANY ROAD OR DRIVEWAY THIS BOND AND FOR INQUIRIES TO THE CITY OF STOCKTON FOR INFORMATION ON THE METHOD, TYPE AND AMOUNT OF THE Q7 SHOULDER AND BANKS SHALL BE STABILIZED IMMEDIATELY UPON COMPLETION OF FINAL GRADING UNTIL TURF IS BOND POSTING UNLESS OTHERWISE DIRECTED BY THE OWNER. CONSTRUCTION SCHEDULE ESTABLISHED. C THE ANTICIPATED STARTING DATE FOR CONSTRUCTION IS SPRING 2020 WITH COMPLETION ANTICIPATED FALL 2020. 4. VISUAL SITE INSPECTIONS SHALL BE CONDUCTED WEEKLY, PRIOR TO ANY RAINFALL EVENT PREDICTION OF 0.1 INCHES Q APPROPRIATE SEDIMENT AND EROSION CONTROL MEASURES AS DESCRIBED HEREIN SHALL BE INSTALLED BY THE CONTRACTOR 3. PAVEMENT SUB-BASE AND BASE COURSES SHALL BE INSTALLED OVER AREAS TO BE PAVED AS SOON AS FINAL WITHIN 24-HOUR PERIOD, AT 24-HOUR INTERVALS DURING EXTENDED RAINFALL EVENTS AND AFTER EACH MEASURABLE �. PRIOR TO THE COMMENCEMENT OF ALL DEMOLITION OR CONSTRUCTION ACTIVITY. SCHEDULE WORK TO MINIMIZE THE LENGTH OF SUB-GRADES ARE ESTABLISHED AND UNDERGROUND UTILITIES AND STORM DRAINAGE SYSTEMS HAVE BEEN INSTALLED. PRECIPITATION EVENT OF 0.1 INCHES OR GREATER BY QUALIFIED PERSONNEL, TRAINED AND EXPERIENCED IN SEDIMENT AND E TIME THAT BARE SOIL WILL BE EXPOSED. EROSION CONTROL, TO ASCERTAIN THAT THE SEDIMENT AND EROSION CONTROL (E&S) BMPS ARE OPERATIONAL AND . . O 4. AFTER CONSTRUCTION OF PAVEMENT, TOPSOIL, FINAL SEED, MULCH AND LANDSCAPING, REMOVE ALL TEMPORARY SEDIMENT EFFECTIVE IN PREVENTING POLLUTION. A WRITTEN REPORT OF EACH INSPECTION SHALL BE KEPT, AND INCLUDE: V CONTINGENCY EROSION PLAN AND EROSION CONTROL DEVICES ONLY AFTER ALL AREAS HAVE BEEN PAVED AND/OR GRASS HAS BEEN WELL ESTABLISHED A)A SUMMARY OF THE SITE CONDITIONS, E&S BMPS, AND COMPLIANCE; AND THE CONTRACTOR SHALL INSTALL ALL SPECIFIED SEDIMENT AND EROSION CONTROL MEASURES AND WILL BE REQUIRED TO AND THE SITE IS STABLE AND HAS BEEN INSPECTED AND APPROVED BY THE CITY OF STOCKTON. B)THE DATE, TIME, AND THE NAME OF THE PERSON CONDUCTING THE INSPECTION MAINTAIN THEM IN THEIR INTENDED FUNCTIONING CONDITION. THE AGENTS OF THE CITY OF STOCKTON AND/OR CIVIL ENGINEER C)TURBIDITY TESTING AS REQUIRED BY THE GENERAL PERMIT (NPDES). SHALL HAVE THE AUTHORITY TO REQUIRE SUPPLEMENTAL MAINTENANCE OR ADDITIONAL MEASURES IF FIELD CONDITIONS ARE INSTALLATION OF SEDIMENTATION AND EROSION CONTROL MEASURES 220 Norwood Park South ENCOUNTERED BEYOND WHAT WOULD NORMALLY BE ANTICIPATED. 5. THE CONTRACTOR SHALL CONSTRUCT ALL SEDIMENT AND EROSION CONTROLS IN ACCORDANCE WITH THE CALTRANS Suite 201 I. SILT FENCE SC-1 CONSTRUCTION SITE BEST MANAGEMENT PRACTICES (BMP) MANUAL CTSW-RT-1-314.18.1 DATES MAY 2017 AND AS Norwood,MA 02062 CONSTRUCTION SEQUENCE A. DIG A SIX INCH TRENCH ON THE UPHILL SIDE OF THE DESIGNATED FENCE LINE LOCATION. AMENDED AS PROVIDED BY THE CALIFORNIA DEPARTMENT OF TRANSPORTATION DIVISION OF ENVIRONMENTAL ANALYSIS (781) 619-9500 THE FOLLOWING CONSTRUCTION SEQUENCE IS RECOMMENDED: STORMWATER PROGRAM, THE CONTRACT DOCUMENTS, AND AS DIRECTED BY THE CITY OF STOCKTON. THE CONTRACTOR B. POSITION THE POST AT THE BACK OF THE TRENCH (DOWNHILL SIDE), AND HAMMER THE SHALL KEEP A COPY OF THE GUIDELINES ON-SITE FOR REFERENCE DURING CONSTRUCTION. 1. CONTACT THE CITY OF STOCKTON AGENT AT LEAST FORTY-EIGHT (48) HOURS PRIOR TO COMMENCEMENT OF ANY POST AT LEAST 1.5 FEET INTO THE GROUND. DEMOLITION, CONSTRUCTION OR REGULATED ACTIVITY ON THIS PROJECT. .6ADDITIONAL AND/OR ALTERNATIVE SEDIMENT AND EROSION CONTROL MEASURES MAY BE INSTALLED DURING THE C. LAY THE BOTTOM SIX INCHES OF THE FABRIC INTO THE TRENCH TO PREVENT UNDERMINING BY STORM WATER RUN-OFF. CONSTRUCTION PERIOD IF FOUND NECESSARY BY THE CONTRACTOR, OWNER, SITE ENGINEER, THE CITY OF STOCKTON, OR 2. CLEARING LIMITS SHALL BE PHYSICALLY MARKED IN THE FIELD AND APPROVED BY THE CITY OF STOCKTON AGENT PRIOR TO THE START OF WORK ON THE SITE. INSTALL TREE PROTECTION AND PERIMETER SILT FENCE. D. BACKFILL THE TRENCH AND COMPACT. GOVERNING AGENCIES. THE CONTRACTOR SHALL CONTACT THE OWNER AND APPROPRIATE GOVERNING AGENCIES FOR APPROVAL IF ALTERNATIVE CONTROLS OTHER THAN THOSE SHOWN ON THE PLANS ARE PROPOSED. � �[�E Ad, f 3. CONSTRUCT STONE CONSTRUCTION ENTRANCE ANTI-TRACKING PADS AT CONSTRUCTION ENTRANCES/EXITS AND INSTALL II. STRAW BALES SC-9 7. THE CONTRACTOR SHALL INSPECT ALL SEDIMENT AND EROSION CONTROLS PRIOR TO A FORECAST STORM EVENT, AFTER A f� FILTER FABRIC AROUND GRATES OF CATCH BASINS OR INSTALL SILT SACKS ON CATCH BASIN INLETS AND ON OFF SITE A. BALES SHALL BE PLACED IN A SINGLE ROW, LENGTHWISE, ORIENTED PARALLEL TO THE CONTOUR, WITH ENDS OF QUALIFIED RAIN EVENT THAT CAUSES RUNOFF FROM THE CONSTRUCTION SITE, AT 24-HOUR INTERVALS DURING AN # ROADS. INSTALL SILT FENCE AND OTHER EROSION CONTROL DEVICES INDICATED ON THESE PLANS AT PERIMETER OF ADJACENT BALES TIGHTLY ABUTTING ONE ANOTHER. EXTENDED RAIN EVENTS AND WEEKLY THROUGHOUT THE DURATION OF THE CONSTRUCTION PROJECT, TO VERIFY THAT THE PROPOSED SITE DISTURBANCE AND INSTALL ALL EROSION CONTROL MEASURES AND TREE PROTECTION INDICATED ON THESE PLANS. INSTALL SEDIMENT BASINS AND SEDIMENT TRAPS IF REQUIRED AT LOW AREAS OF SITE OR AS ORDERED BY THE B. BALES SHALL BE ENTRENCHED AND BACKFILLED. A TRENCH SHALL BE EXCAVATED THE WIDTH OF A BALE AND THE CONTROLS ARE OPERATING PROPERLY AND MAKE REPAIRS WHERE NECESSARY. �( �IE 7 � , ENGINEER OR AS SHOWN ON THESE PLANS. LENGTH OF THE PROPOSED BARRIER TO A MINIMUM DEPTH OF FOUR INCHES. AFTER THE BALES ARE STAKED, THE EXCAVATED 8, THE CONTRACTOR SHALL KEEP A SUPPLY OF SEDIMENT AND EROSION CONTROL MATERIAL (HAY BALES, SILT FENCE, JUTE SOIL SHALL BE BACKFILLED AGAINST THE BARRIER. MESH, RIP RAP, ETC.) ON-SITE FOR MAINTENANCE AND EMERGENCY REPAIRS. ' 4. CLEAR AND GRUB SITE. STOCKPILE CHIPS. STOCKPILE TOPSOIL. INSTALL SEDIMENT AND EROSION CONTROLS AT STOCKPILES. C. EACH BALE SHALL BE SECURELY ANCHORED BY AT LEAST TWO (2) STAKES. �� 5. SAWCUT AND PAVEMENT REMOVAL. 9. PROTECT EXISTING TREES THAT ARE TO BE SAVED BY FENCING AT THE DRIP LINE OR AS SHOWN WITH SNOW FENCE, D. THE GAPS BETWEEN BALES SHALL BE WEDGED WITH STRAW TO PREVENT WATER LEAKAGE. ORANGE SAFETY FENCE, OR EQUIVALENT FENCING. ANY LIMB TRIMMING SHOULD BE DONE BEFORE CONSTRUCTION BEGINS 6. INSTALL SILT FENCE, CONSTRUCT DIVERSION SWALES AND SEDIMENT TRAPS AS APPLICABLE. COMMENCE INSTALLATION OF IN THAT AREA; FENCING SHALL BE MAINTAINED AND REPAIRED DURING CONSTRUCTION. STORM DRAINAGE SYSTEM. E. THE BARRIER SHALL BE EXTENDED TO SUCH A LENGTH THAT THE BOTTOMS OF THE END BALES ARE HIGHER IN 10. INSTALL PERIMETER SEDIMENT AND EROSION CONTROLS PRIOR TO CLEARING OR CONSTRUCTION. ALL CONSTRUCTION SHALL ELEVATION THAN THE TOP OF THE LOWEST MIDDLE BALE, TO ENSURE THAT RUN-OFF WILL FLOW EITHER THROUGH OR OVER BE CONTAINED WITHIN THE LIMIT OF DISTURBANCE, WHICH SHALL BE MARKED WITH SILT FENCE, SAFETY FENCE, HAY BALES, 7. COMMENCE EARTHWORK. CONSTRUCT ROUGH GRADING. INSTALL ADDITIONAL SEDIMENT AND EROSION CONTROLS AS WORK THE BARRIER, BUT NOT AROUND IT. RIBBONS, OR OTHER MEANS PRIOR TO CLEARING. CONSTRUCTION ACTIVITY SHALL REMAIN ON THE UPHILL SIDE OF THE PROGRESSES AND CONTINUE STORM DRAINAGE SYSTEM CONSTRUCTION, TOPSOIL AND SEED SLOPES WHICH HAVE ACHIEVED SILT FENCE UNLESS WORK IS SPECIFICALLY CALLED FOR ON THE DOWNHILL SIDE OF THE FENCE. FINAL SITE GRADING. III. FIBER ROLLS SC-5 8. CONSTRUCTION STAKING OF ALL STRUCTURE CORNERS, UTILITIES, STORM DRAINAGE, ACCESS DRIVES, AND PARKING AREAS. A. WOOD STAKES MUST BE UNTREATED FIR, REDWOOD, CEDAR OR PINE 11. STONE CONSTRUCTION ENTRANCE ANTI-TRACKING PADS SHALL BE INSTALLED AT START OF CONSTRUCTION AND MAINTAINED THROUGHOUT THE DURATION OF CONSTRUCTION. THE LOCATION OF THE TRACKING PADS MAY CHANGE AS B. FIBER ROLL SPACING AS FOLLOWS: 9. COMPLETE ALL ROUGH GRADING AND FILLING OF SUBGRADES AND SLOPES. -10 FEET FOR SLOPES STEEPER THAN 2:1 VARIOUS PHASES OF CONSTRUCTION ARE COMPLETED. -15 FEET FOR SLOPES FROM 2:1 TO 4:1 12. TOPSOIL SHALL BE STRIPPED AND STOCKPILED FOR USE IN FINAL LANDSCAPING. ALL EARTH STOCKPILES SHALL HAVE 10. IMMEDIATELY UPON DISCOVERING UNFORESEEN CIRCUMSTANCES POSING THE POTENTIAL FOR ACCELERATED EROSION AND/OR -20 FEET FOR SLOPES FROM 4:1 TO 10:1 HAY BALES OR SILT FENCE AROUND THE LIMIT OF PILE. PILES SHALL BE TEMPORARILY SEEDED IF PILE IS TO REMAIN IN SEDIMENT POLLUTION, THE OPERATOR SHALL IMPLEMENT APPROPRIATE BEST MANAGEMENT PRACTICES TO ELIMINATE THE -50 FEET FOR SLOPES FLATTER THAN 10:1 PLACE FOR MORE THAN ONE (1) MONTH. POTENTIAL FOR ACCELERATED EROSION AND/OR SEDIMENT POLLUTION. THE CITY REPRESENTATIVE AND SITE ENGINEER ARE TYPE 1 INSTALLATIONS: TO BE INFORMED IMMEDIATELY. PLACE IN A FURROW 2 TO 4 INCHES DEEP FASTEN WITH WOOD STAKES EVERY 4 FEET 13. TEMPORARY SEDIMENT TRAPS SHALL PROVIDE 67 CUBIC YARDS FOR SETTLING ZONE PER ACRE CONTRIBUTING TO THE J • 11. BEFORE DISPOSING OF SOIL OR RECEIVING BORROW FOR THE SITE, THE CONTRACTOR MUST PROVIDE EVIDENCE THAT EACH FASTEN ENDS WITH STAKE 6 INCHES FROM END OF ROLL TRAP AND 33 CUBIC YARDS FOR SEDIMENT STORAGE PER ACRE OF CONTRIBUTING TO THE TRAP. PROVIDE BASIN VOLUMES FOR ALL DISTURBANCE ON SITE. SPOIL OR BORROW AREA HAS A SEDIMENT AND EROSION CONTROL PLAN APPROVED BY THE CITY OF STOCKTON AND DRIVE STAKES SUCH THAT STAKE IS LESS THAN 2 INCHES ABOVE TOP OF THE FIBER ROLL WHICH IS BEING IMPLEMENTED AND MAINTAINED. THE CONTRACTOR SHALL ALSO NOTIFY THE CITY OF STOCKTON IN TYPE 2 INSTALLATIONS: 14. COMPLY WITH REQUIREMENTS OF NDPES FOR STORMWATER DISCHARGE FROM CONSTRUCTION ACTIVITIES AND WITH STATE WRITING OF ALL RECEIVING SPOIL AND BORROW AREAS WHEN THEY HAVE BEEN IDENTIFIED. FASTEN WITH NOTCHED WOOD STAKES AND ROPE • DRIVE STAKES UNTIL NOTCH IS EVEN WITH TOP OF FIBER ROLL WATER RESOURCES CONTROL BOARD (SWRCB) RECORD KEEPING AND INSPECTION REQUIREMENTS. 12. CONTINUE INSTALLATION OF STORM DRAINAGE AS SUBGRADE ELEVATIONS ARE ACHIEVED. LACE ROPE BETWEEN STAKES AND OVER FIBER ROLL. KNOT ROPE AT EACH STAKE • TIGHTEN FIBER ROLL TO SLOPE SURFACE BY DRIVING STAKES FURTHER INTO THE SOIL 15. STONE CONSTRUCTION ENTRANCE ANTI-TRACKING PADS SHALL BE INSTALLED PRIOR TO ANY ON SITE EXCAVATION AND O z z 13. BUILDING FOUNDATION SUBGRADE AND PAD SUBGRADE PREPARATION. SHALL BE MAINTAINED DURING ALL DEMOLITION, EXCAVATION AND CONSTRUCTION ACTIVITIES. C. GRAVEL BAG/EARTHEN BERM SC-6 16. MINIMIZE LAND DISTURBANCES. SEED AND MULCH DISTURBED AREAS WITH TEMPORARY MIX AS SOON AS PRACTICABLE 14. BUILDING FOUNDATION CONSTRUCTION. BEGIN BUILDING SUPERSTRUCTURE INSTALL ALONG A LEVEL CONTOUR LU Q • PLACE GRAVEL FILLED BAGS END-TO-END TO ELIMINATE GAPS (ONE WEEK MAXIMUM UNSTABILIZED PERIOD) USING PERENNIAL RYEGRASS AT 40 LBS PER ACRE. MULCH ALL CUT AND FILL LU LL 15. THROUGHOUT CONSTRUCTION SEQUENCE, REMOVE SEDIMENT FROM BEHIND SILT FENCES, HAY BALES AND OTHER EROSION ANGLE LAST 6 FEET UPSLOPE AT DOWNHILL END OF RUN SLOPES AND SWALES WITH LOOSE HAY AT A RATE OF 2 TONS PER ACRE. IF NECESSARY, REPLACE LOOSE HAY ON �/ J CONTROL DEVICES, AND FROM SEDIMENT BASINS AND SEDIMENT TRAPS AS REQUIRED. REMOVAL SHALL BE ON A PERIODIC STACK THE BAGS SUCH THAT THE UPPER ROW OVERLAPS THE JOINTS IN THE LOWER ROW SLOPES WITH EROSION CONTROL BLANKETS OR JUTE CLOTH. MODERATELY GRADED AREAS, ISLANDS, AND TEMPORARY BASIS (EVERY SIGNIFICANT RAINFALL OF 0.1 INCH OR GREATER). INSPECTION OF SEDIMENT AND EROSION CONTROL ADD LAYERS OF GRAVEL-FILLED BAGS TO INCREASE HEIGHT AS NEEDED. OVERLAP JOINTS CONSTRUCTION STAGING AREAS MAY BE HYDROSEEDED WITH TACKIFIER. Q Q MEASURES SHALL BE ON A WEEKLY BASIS AND AFTER EACH RAINFALL OF 0.1 INCHES OR GREATER. SEDIMENT COLLECTED OPERATION AND MAINTENANCE OF SEDIMENT AND EROSION CONTROL MEASURES 17. IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO PROVIDE A STABLE, NON-EROSIVE BASE TO BE PRE-APPROVED BY HE V 120 U SHALL BE DEPOSITED AND SPREAD EVENLY UPLAND ON SLOPES DURING CONSTRUCTION. REGULATING AUTHORITY FOR CONSTRUCTION STAGING. D. SILTATION FENCE z 16. INSTALL SANITARY LATERAL AND UTILITIES. COMPLETE STORM DRAINAGE SYSTEM. A. ALL SILTATION FENCES SHALL BE INSPECTED AS A MINIMUM WEEKLY OR AFTER EACH RAINFALL. ALL DETERIORATED 18. SILT FENCE AND OTHER SEDIMENT AND EROSION CONTROL MEASURES SHALL BE INSTALLED IN ACCORDANCE WITH L O 17. INSTALL SITE LIGHTING AND TRASH ENCLOSURE. FABRIC AND DAMAGED POSTS SHALL BE REPLACED AND PROPERLY REPOSITIONED IN ACCORDANCE WITH THIS PLAN. CONTRACT DRAWINGS AND MANUFACTURER'S RECOMMENDATIONS PRIOR TO WORK IN ANY UPLAND AREAS. 18. COMPLETE GRADING TO SUBGRADES AND CONSTRUCT PARKING AREA SUBGRADE. B. SEDIMENT DEPOSITS SHALL BE REMOVED FROM BEHIND THE FENCE WHEN THEY REACH A MAXIMUM HEIGHT OF ONE FOOT. 19. EXCAVATED MATERIAL FROM TEMPORARY SILT TRAPS MUST BE STOCKPILED ON UPHILL SIDE OF SILT FENCE. / 19. CONSTRUCT CURBS, PAVEMENT STRUCTURE AND SIDEWALKS. II. STRAW BALES 20. INSTALL SILT FENCE ACCORDING TO MANUFACTURER'S INSTRUCTION, PARTICULARLY, BURY LOWER EDGE OF FABRIC INTO O A. ALL STRAW BALE RINGS SHALL BE INSPECTED FOLLOWING EACH RAINFALL. REPAIR OR REPLACEMENT SHALL BE PROMPTLY GROUND. SILT FENCE SHALL BE TENCATE ENVIROFENCE, PROPEX GEOTEX OR EQUIVALENT APPROVED BY THE CIVIL W 20. CONDUCT FINE GRADING. MADE AS NEEDED. ENGINEER. FILTER FABRIC USED SHALL BE TENCATE 140N OR 170N, OR APPROVED EQUIVALENT. SEE SPECIFICATIONS FOR N C) FURTHER INFORMATION. O 21. PAVING OF PARKING AREAS AND DRIVEWAYS B. DEPOSITS SHALL BE REMOVED AND CLEANED-OUT IF ONE HALF OF THE ORIGINAL HEIGHT OF THE BALES BECOMES FILLED WITH SEDIMENT. 21. WHERE INDICATED ON SEDIMENT AND EROSION CONTROL PLANS USE NEW HAY/STRAW BALES AND REPLACE THEM 22. FINAL FINE GRADING OF SLOPE AND NON-PAVED AREAS. WHENEVER THEIR CONDITION DETERIORATES BEYOND REASONABLE USABILITY. STAKE BALES SECURELY INTO GROUND AND III. SEDIMENT BASINS/SEDIMENT TRAPS BUTT TIGHTLY TOGETHER TO PREVENT UNDERCUTTING AND BYPASSING. O 23. PLACE 4" TOPSOIL ON SLOPES AFTER FINAL GRADING IS COMPLETED. FERTILIZE SEED AND MULCH. SEED MIXTURE TO BE A. CONTRACTOR TO KEEP WEEKLY CHECKLIST LOGS FOR INSPECTIONS OF ALL SEDIMENT AND EROSION CONTROL DEVICES AND INSTALLED APRIL 15. - JUNE 1 OR AUGUST 15-OCTOBER 1 ADJUST DATES BASED ON LOCATION OF PROJECT USE HAVE THEM READILY AVAILABLE ON-SITE AT ALL TIMES FOR INSPECTION BY CALTRANS DISTRICT ENVIRONMENTAL BRANCH, 22. INSTALL TEMPORARY DIVERSION DITCHES, PLUNGE POOLS, SEDIMENT TRAPS, CONCRETE WASH PITS AND DEWATERING PITS EROSION CONTROL BLANKETS AS REQUIRED OR ORDERED FOR SLOPES GREATER THAN 3:1 AND AS SHOWN ON LANDSCAPE LOCAL AUTHORITIES OR ENGINEER. AS SHOWN AND AS NECESSARY DURING VARIOUS PHASES OF CONSTRUCTION TO CONTROL RUNOFF UNTIL UPHILL AREAS PLANS OR EROSION CONTROL PLANS. FOR TEMPORARY STABILIZATION BEYOND SEEDING DATES USE ANNUAL RYE AT 4.0 ARE DETERMINED TO BE STABILIZED BY THE AUTHORITY HAVING JURISDICTION. LOCATION OF TEMPORARY SEDIMENT TRAPS LBS/1,000 S.F. FERTILIZE WITH 10-10-10 AT 1.0 LBS. OF NITROGEN PER 1,000 S.F. AND LIME AT 100 LBS/1,000 S.F. B. ALL SEDIMENT BASINS AND/OR SEDIMENT TRAPS SHALL BE INSPECTED PRIOR TO A FORECAST STORM EVENT, FOLLOWING WILL REQUIRE REVIEW AND APPROVAL BY THE CIVIL ENGINEER AND AUTHORITY HAVING JURISDICTION. (MAX.). EACH RAINFALL, AT 24-HOUR INTERVALS DURING A RAINFALL EVENT AND WEEKLY THROUGHOUT THE DURATION OF THE CONSTRUCTION PROJECT. REPAIR OF SLOPES AND EROSION CONTROL MEASURE MAINTENANCE SHALL BE PROMPTLY MADE AS 23. DIRECT ALL DEWATERING PUMP DISCHARGE TO A SEDIMENT CONTROL DEVICE SUCH AS TEMPORARY PITS, SEDIMENT TRAPS 24. LANDSCAPE ISLANDS, INTERIOR NON-PAVED AREAS, AND PERIMETER AREAS. NEEDED. OR GRASS FILTERS WITHIN THE APPROVED LIMIT OF DISTURBANCE. DISCHARGE TO STORM DRAINAGE SYSTEM OR SURFACE WATERS FROM SEDIMENT CONTROLS SHALL BE CLEAR. 25. INSTALL SIGNING AND PAVEMENT MARKINGS C. SEDIMENT DEPOSITS SHALL BE REMOVED FROM SEDIMENT BASINS AND/OR SEDIMENT TRAPS WHEN THEY REACH A MAXIMUM HEIGHT OF ONE FOOT UNLESS OTHERWISE INDICATED ON THE EROSION CONTROL PLANS AND DETAILS TO BE AT A 24. BLOCK END OF STORM SEWERS IN EXPOSED TRENCHES WITH BOARDS AND SANDBAGS AT THE END OF EACH WORKING DAY 26. CLEAN STORM DRAINAGE PIPE STRUCTURES, DETENTION SYSTEMS AND WATER QUALITY DEVICES OF DEBRIS AND SEDIMENT. SPECIFIC ELEVATION PER CLEAN OUT MARKERS. WHEN RAIN IS EXPECTED. 27. UPON DIRECTION OF THE CITY OF STOCKTON AGENT, SEDIMENT AND EROSION CONTROL MEASURES SHALL BE REMOVED D. SEDIMENT SHALL BE DISPOSED OF IN ACCORDANCE WITH THE REQUIREMENTS OF THE CALTRANS STANDARD 25. SWEEP AFFECTED PORTIONS OF OFF SITE ROADS ONE OR MORE TIMES A DAY (OR LESS FREQUENTLY IF TRACKING IS NOT FOLLOWING STABILIZATION OF THE SITE. SPECIFICATIONS SECTION 14-10-"SOLID WASTE DISPOSAL AND RECYCLING UNLESS ANOTHER METHOD IS AUTHORIZED. A PROBLEM) DURING CONSTRUCTION. OTHER DUST CONTROL MEASURES TO BE USED AS NECESSARY INCLUDE WATERING DOWN DISTURBED AREAS, USING CALCIUM CHLORIDE, AND COVERING LOADS ON DUMP TRUCKS. OPERATION REQUIREMENTS SEDIMENT AND EROSION CONTROL PLAN 1. STRAW BALE FILTERS WILL BE INSTALLED AT ALL CULVERT OUTLETS IF CULVERT OUTLETS ARE APPLICABLE TO THIS 26. PERIODICALLY CHECK ACCUMULATED SEDIMENT LEVELS IN THE SEDIMENT BASINS AND SEDIMENT TRAPS DURING CLEARING AND GRUBBING OPERATIONS PROJECT AND SILTATION FENCE INSTALLED ALONG THE TOE OF ALL CRITICAL CUT AND FILL SLOPES. CONSTRUCTION AND CLEAN ACCUMULATED SILT WHEN NECESSARY OR WHEN ONE FOOT OF SEDIMENT HAS ACCUMULATED 1. ALL SEDIMENT AND EROSION CONTROL MEASURES, INCLUDING THE CONSTRUCTION OF TEMPORARY SEDIMENTATION TRAPS OR PER SPECIFIC CLEANOUT MARKER ELEVATION. CLEAN ACCUMULATED SEDIMENT FROM CATCH BASIN SUMPS AS AND STONE CONSTRUCTION ENTRANCE ANTI-TRACKING PADS, WILL BE INSTALLED PRIOR TO THE START OF CLEARING AND 2• CULVERT DISCHARGE AREAS WILL BE PROTECTED WITH RIP RAP CHANNELS. ENERGY DISSIPATORS WILL BE INSTALLED AS NECESSARY AND AS DIRECTED BY THE CIVIL ENGINEER OR OWNER'S CONSTRUCTION REPRESENTATIVE. REMOVE GRUBBING AND DEMOLITION OPERATIONS. SHOWN ON THESE PLANS AND AS NECESSARY. ACCUMULATED SEDIMENT FROM BEHIND HAY/STRAW BALES AND SILT FENCE WHEN LEVEL REACHES HALF THE HEIGHT OF THE BALE OR ONE FOOT AT SILT FENCE. DISPOSE OF SEDIMENT LEGALLY EITHER ON OR OFF SITE. 2. FOLLOWING INSTALLATION OF ALL SEDIMENT AND EROSION CONTROL MEASURES, THE CONTRACTOR SHALL NOT PROCEED 3. CATCH BASINS WILL BE PROTECTED WITH HAY BALE/STRAW BALE FILTERS, SILT SACKS, SILTATION FENCE, OR OTHER INLET WITH GRADING, FILLING OR OTHER CONSTRUCTION OPERATIONS UNTIL THE ENGINEER HAS INSPECTED AND APPROVED ALL PROTECTION DEVICES PER DETAILS, THROUGHOUT THE CONSTRUCTION PERIOD AND UNTIL ALL DISTURBED AREAS ARE 27. IMMEDIATELY UPON DISCOVERING UNFORESEEN CIRCUMSTANCES POSING THE POTENTIAL FOR ACCELERATED EROSION AND/OR INSTALLATIONS. THOROUGHLY STABILIZED. SEDIMENT POLLUTION, THE OPERATOR SHALL IMPLEMENT APPROPRIATE BEST MANAGEMENT PRACTICES TO ELIMINATE THE 3. THE CONTRACTOR SHALL TAKE EXTREME CARE DURING CLEARING AND GRUBBING OPERATIONS SO AS NOT TO DISTURB 4. ALL SEDIMENT AND EROSION CONTROL MEASURES WILL BE INSTALLED IN ACCORDANCE WITH THE STANDARDS AND POTENTIAL FOR ACCELERATED EROSION AND/OR SEDIMENT POLLUTION. UNPROTECTED WETLAND AREAS OR SEDIMENT AND EROSION CONTROL DEVICES. SPECIFICATIONS OF THE CALTRANS CONSTRUCTION SITE BEST MANAGEMENT PRACTICES (BMP) MANUAL 28. ALL PUMPING OF SEDIMENT LADEN WATER SHALL BE THROUGH A SEDIMENT CONTROL BMP, SUCH AS A PUMPED WATER CTSW-RT-17-314.18.1 DATED MAY 2017 BY THE CALIFORNIA DEPARTMENT OF TRANSPORTATION, DIVISION OF FILTER BAG OR EQUIVALENT SEDIMENT REMOVAL FACILITY, OVER UNDISTURBED VEGETATED AREAS. 4. FOLLOWING THE COMPLETION OF CLEARING AND GRUBBING OPERATIONS, ALL AREAS SHALL BE STABILIZED WITH TOPSOIL ENVIRONMENTAL ANALYSIS, STORMWATER PROGRAM, LATEST EDITION. AND SEEDING OR CRUSHED STONE AS SOON AS PRACTICAL. 29. ALL EXCAVATED MATERIAL SHALL BE PLACED ON THE HIGH SIDE OF UTILITY AND STORM PIPE TRENCHES SO AS TO 5. SEDIMENT AND EROSION CONTROL MEASURES WILL BE INSTALLED PRIOR TO DEMOLITION AND/OR CONSTRUCTION WHENEVER ALLOW THE TRENCH TO INTERCEPT ALL SILT LADEN RUNOFF. POSSIBLE. 6 30. CONTRACTOR SHALL ONLY EXCAVATE AS MUCH UTILITY AND STORM PIPE TRENCH WORK AS CAN BE COMPLETED, 6 ROUGH GRADING OPERATIONS 6. ALL CONTROL MEASURES WILL BE MAINTAINED IN EFFECTIVE CONDITION THROUGHOUT THE DEMOLITION AND CONSTRUCTION BACKFILLED AND STABILIZED IN ONE DAY SO AS TO LIMIT THE AMOUNT OF OPEN, DISTURBED TRENCHING. PERIOD UNTIL THE SITE IS DETERMINED TO BE STABILIZED BY THE AUTHORITY HAVING JURISDICTION. 1. DURING THE REMOVAL AND/OR PLACEMENT OF EARTH AS INDICATED ON THE GRADING PLAN, TOPSOIL SHALL BE STRIPPED 31. CONTRACTOR SHALL MINIMIZE THE IMPACT OF DUST BY ANTICIPATING THE DIRECTION OF PREVAILING WINDS. APPLICABLE AND APPROPRIATELY STOCKPILED FOR REUSE. 7. ADDITIONAL CONTROL MEASURES WILL BE INSTALLED DURING THE CONSTRUCTION PERIOD, IF NECESSARY OR REQUIRED OR DUST PALLIATIVES INCLUDE WATER, DUST CONTROL BINDERS AND DUST SUPPRESSANTS. IF A DUST SUPPRESSANT IS USED, w z AS DIRECTED BY THE CIVIL ENGINEER OR BY THE AUTHORITY HAVING JURISDICTION. A DUST TREATMENT PLAN SHALL BE PROVIDED FOR REVIEW AND SUBJECT TO APPROVAL BY THE REGULATORY AUTHORITY. 2. ALL STOCKPILED TOPSOIL SHALL BE SEEDED, MULCHED WITH HAY, AND ENCLOSED BY A SILTATION FENCE. THE PLAN SHALL INCLUDE A CERTIFICATE OF COMPLIANCE FOR DUST SUPPRESSANTS, TACKIFIERS AND FIBERS m 00o 8. SEDIMENT REMOVED FROM EROSION CONTROL STRUCTURES SHALL BE DISPOSED OF IN ACCORDANCE WITH THE x L FILLING OPERATIONS REQUIREMENTS OF THE CALTRANS STANDARD SPECIFICATIONS SECTION 14-10-"SOLID WASTE DISPOSAL AND RECYCLING" 32. CONTRACTOR IS RESPONSIBLE FOR DETERMINING WHETHER TO PERFORM WATER QUALITY SAMPLING WHEN A STORM IS o 0 UNLESS ANOTHER METHOD IS AUTHORIZED. FORECASTED FOR IMPACTS ASSOCIATED WITH CHEMICAL DUST SUPPRESSANTS. N z 1. PRIOR TO FILLING, ALL SEDIMENT AND EROSION CONTROL DEVICES SHALL BE PROPERLY IMPLEMENTED, MAINTAINED AND CD FULLY INSTALLED, AS DIRECTED BY THE ENGINEER AND AS SHOWN ON THIS PLAN. 9. THE OWNER'S CONSTRUCTION REPRESENTATIVE IS ASSIGNED THE RESPONSIBILITY FOR IMPLEMENTING THIS SEDIMENT AND 33. IF RECLAIMED WATER IS USED FOR DUST SUPPRESSANT, THE SOURCES MUST MEET CALIFORNIA DEPARTMENT OF HEALTH v EROSION CONTROL PLAN. THIS RESPONSIBILITY INCLUDES THE INSTALLATION AND MAINTENANCE OF CONTROL MEASURES, SERVICES WATER RECLAMATION CRITERIA AND THE RWQCB REQUIREMENTS. NON-POTABLE WATER MUST NOT BE CONVEYED 2. ALL FILL MATERIAL ADJACENT TO ANY WETLAND AREAS, IF APPLICABLE TO THIS PROJECT, SHALL BE GOOD QUALITY, WITH INFORMING ALL PARTIES ENGAGED ON THE CONSTRUCTION SITE OF THE REQUIREMENTS AND OBJECTIVES OF THE PLAN, IN TANKS OR DRAIN PIPES THAT WILL BE UISED TO CONVEY POTABLE WATER AND THERE MUST BE NO CONNECTION o Designed S.M.K. LESS THAN 5% FINES PASSING THROUGH A #200 SIEVE (BANK RUN), SHALL BE PLACED IN LIFT THICKNESSES NOT NOTIFICATION OF THE CITY OF STOCKTON OFFICE OR AUTHORITY HAVING JURISDICTION OF ANY TRANSFER OF THIS BETWEEN POTABLE AND NON-POTABLE SUPPLIES. NON-POTABLE TANKS, PIPES AND OTHER CONVEYANCES MUST BE 7 Drawn B.S.R. GREATER THAN THAT SPECIFIED IN PROJECT SPECIFICATIONS AND/OR THE PROJECT GEOTECHNICAL REPORT. LIFTS SHALL RESPONSIBILITY AND FOR CONVEYING A COPY OF THE SEDIMENT AND EROSION CONTROL PLAN IF THE TITLE TO THE LAND MARKED "NON-POTABLE WATER - DO NOT DRINK"' a Reviewed S.M.K. BE COMPACTED TO 95% MAX. DRY DENSITY MODIFIED PROCTOR OR AS SPECIFIED IN THE CONTRACT SPECIFICATIONS OR IN IS TRANSFERRED. THE GEOTECHNICAL REPORT. 34. ANY STOCKPILES OF STRIPPED MATERIALS ARE TO BE PERIODICALLY SPRAYED WITH WATER OR A CRUSTING AGENT TO X Scale NONE 3. AS GENERAL GRADING OPERATIONS PROGRESS, ANY TEMPORARY DIVERSION DITCHES SHALL BE RAISED OR LOWERED, AS SEDIMENT AND EROSION CONTROL NOTES STABILIZE POTENTIALLY WIND-BLOWN MATERIAL. HAUL ROADS BOTH INTO AND AROUND THE SITE ARE TO BE SPRAYED AS P Project No. 1902145 X NECESSARY, TO DIVERT SURFACE RUNOFF TO THE SEDIMENT BASINS OR SEDIMENT TRAPS. 1. THE SEDIMENT AND EROSION CONTROL PLAN IS ONLY INTENDED TO DESCRIBE THE SEDIMENT AND EROSION CONTROL NEEDED TO SUPPRESS DUST. TRUCKS HAULING IMPORT FILL MATERIAL ARE TO BE TARPED TO AID IN THE CONTROL OF o N TREATMENT FOR THIS SITE. SEE SEDIMENT AND EROSION CONTROL DETAILS AND CONSTRUCTION SEQUENCE. REFER TO AIRBORNE DUST. DURING HIGH WIND EVENTS (20 TO 30 MPH SUSTAINED) CONSTRUCTION ACTIVITY SHALL BE LIMITED OR $ Date 05/15/2020 PLACEMENT OF DRAINAGE STRUCTURES, UTILITIES, AND BUILDING CONSTRUCTION OPERATIONS. SITE PLAN FOR GENERAL INFORMATION AND OTHER CONTRACT PLANS FOR APPROPRIATE INFORMATION. CEASED IF DUST CANNOT BE CONTROLLED BY WETTING. o w CAD File: 00 EC 190214501 3 1. SILT FENCES SHALL BE INSTALLED AT THE DOWNHILL SIDES OF BUILDING EXCAVATIONS, MUD PUMP DISCHARGES, AND 2. THE OWNER'S CONSTRUCTION REPRESENTATIVE IS RESPONSIBLE FOR IMPLEMENTING THIS SEDIMENT AND EROSION CONTROL 35. AN AREA SHALL BE CONSIDERED TO HAVE ACHIEVED FINAL STABILIZATION WHEN IT HAS A MINIMUM OF 70% UNIFORM UTILITY TRENCH MATERIAL STOCKPILES. HAY BALES/STRAW BALES MAY BE USED IF SHOWN ON THE SEDIMENT AND PLAN, AND CAN BE REACHED AT THE PHONE NUMBER PROVIDED. THIS RESPONSIBILITY INCLUDES THE PROPER PERENNIAL VEGETATIVE COVER OR OTHER PERMANENT NON-VEGETATIVE COVER WITH A DENSITY SUFFICIENT TO RESIST 01 EROSION CONTROL PLANS OR IF DIRECTED BY THE CIVIL ENGINEER. INSTALLATION AND MAINTENANCE OF SEDIMENT AND EROSION CONTROL MEASURES, INFORMING ALL PARTIES ENGAGED WITH ACCELERATED SURFACE EROSION AND SUBSURFACE CHARACTERISTICS SUFFICIENT TO RESIST SLIDING OR OTHER Title CONSTRUCTION ON THE SITE OF THE REQUIREMENTS AND OBJECTIVES OF THIS PLAN, INFORMING THE AUTHORITY HAVING MOVEMENTS UNLESS OTHERWISE DETERMINED BY THE AUTHORITY HAVING JURISDICTION. o SEDIMENT AND FINAL GRADING AND PAVING OPERATIONS JURISDICTION OR COUNTY SOILS CONSERVATION DISTRICT OR INLAND WETLANDS AGENCY OF ANY TRANSFER OF THIS RESPONSIBILITY, AND FOR CONVEYING A COPY OF THE SEDIMENT & EROSION CONTROL PLAN IF THE TITLE TO THE LAND IS 36. MAINTAIN ALL PERMANENT AND TEMPORARY EROSION AND SEDIMENT CONTROL DEVICES IN EFFECTIVE CONDITION P EROSION THROUGHOUT THE CONSTRUCTION PERIOD. UPON COMPLETION OF WORK SWEEP PARKING LOT AND REMOVE ALL > o TEMPORARY EROSION AND SEDIMENT CONTROLS WHEN AUTHORIZED BY AUTHORITY HAVING JURISDICTION. FILE NOT (NOTICE " CONTROL OF TERMINATION) WITH AUTHORITY HAVING JURISDICTION RESPONSIBLE FOR REGULATING STORM WATER DISCHARGES FROM CONSTRUCTION ACTIVITIES PER NPDES. N NOTES U Sheet No. o x O z NOT FOR CONSTRUCTION REFER TO SHEET GN-1 FOR SITE o EC - 2 FOR PERMITTING PURPOSES ONLY WORK GENERAL NOTES X ©2020 BL COMPANIES,INC. THESE DRAWINGS SHALL NOT BE UTILIZED BY ANY PERSON,FIRM OR CORPORATION WITHOUT THE SPECIFIC WRITTEN PERMISSION OF BL COMPANIES.