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STORMWATER POLLUTION PREVENTION PLAN (SWPPP): A PORTION OF THE S 1 /2 OF SECTION 1 & THE N 1 /2 OF SECTION 12, T 28 N , R 4 E, WM I PLAP� ARPEt01d'E�
<br /> THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING THE EROSION CONTROL MEASURES ELEMENT �8: STABILIZE CHANNELS AND OUTLETS ' g 23 ��
<br /> SHOWN OR DESCRIBED IN THE CONTRACT DOCUMENTS AND ANY ADDITIONAL MEASURES 1. ALL TEMPORARY ON-SITE CONVEYANCE CHANNELS SHALL BE DESIGNED, CONSTRUCTED AND STABILIZED TO NOTES � �
<br /> THAT MAY BE REQUIRED BY THE CONTRACTORS MEANS AND METHODS OF CONSTRUCTION PREVENT EROSION FROM THE EXPECTED PEAK 10 MINUTE VELOCITY OF FLOW FROM A TYPE 1A, 10-YR, 24-HR Pus 'cse�ces A�'
<br /> AS NEEDED TO CONTROL EROSION AND SEDIMENT AT THE CONSTRUCTION SITE AND TO FREQUENCY STORM FOR THE DEVELOPED CONDITION. ALTERNATIVELY, THE 10-YR, 1-HR FLOW RATE INDICATED 1. Size the Below Inlet Grate Device (BIGD) for the storm water structure it will ;
<br /> PREVENT VIOLATION OF SURFACE WATER QUALITY, GROUND WATER QUALITY, OR SEDIMENT BY AN APPROVED CONTINUOUS RUNOFF MODEL, INCREASED BY A FACTOR OF 1.6, MAY BE USED. service. ' G ; EROSIO�!
<br /> MANAGEMENT STANDARDS. EROSION CONTROL MEASURES SHALL BE MAINTAINED 2. STABILIZATION, INCLUDING ARMORING MATERIAL, ADEQUATE TO PREVENT EROSION OF OUTLETS, ADJACENT 2. The BIGD shall have a built-in high-flow relief system (overflow bypass). PUt3LICWORKS
<br /> DEPARTMENT
<br /> THROUGHOUT THE COURSE OF CONSTRUCTION AND UNTIL ALL DISTURBED EARTH IS STREAM BANKS, SLOPES, AND DOWNSTREAM REACHES SHALL BE PROVIDED AT THE OUTLETS OF ALL 3. The retrieval system must allow removal of the BIGD without spilling the ° WATER
<br /> STABILIZED IN FINISH GRADES. CONVEYANCE SYSTEMS. collected material. � Puguc woRxs P:R��n zs
<br /> 4. Perform maintenance in accordance with Standard Specification 8-01.3(15). 4 REQUIRED PRIOR TO ;IARTI�IG
<br /> THE FOLLOWING DESCRIBES HOW THE CONSTRUCTION SWPPP ADDRESSES EACH OF THE 13 SUGGESTED BMPs/BMPs TO BE USED: ��eweR _, �rar CONSTRUCTI6N on Tr���
<br /> �' PIlO7ECT. RPPROYAL FOR THIS
<br /> REQUIRED ELEMENTS. REFER TO THESE PLANS FOR DRAWINGS OF THE PROJECT, VICINITY NOT APPLICABLE / PRO]ECT :s CONDIYIONAL PER
<br /> MAP, SITE MAP, EROSION AND SEDIMENT CONTROL MEASURES, AND EROSION AND 5" MAX o 4�a�� cua�fr+T6 c A�o S AND
<br /> pP �f � _ EXPYRES y���UNLESS
<br /> SEDIMENT CONTf20L DETAILS. ELEMENT �9: CONTROL POLLUTANTS DRAINAGEGRATE TRIM �,c�`� �c`� 9S� PERMITFORCONSfNUCTIOHHAS
<br /> 1. ALL POLLUTANTS, INCLUDING WASTE MATERIALS AND DEMOLITION DEBRIS THAT OCCUR ONSITE SHALL BE �S� �, �o- �'F,o �"o cmr N NflER BEFNISSUED.
<br /> ELEMENT �1: PRESERVE VEGETATION f MARK CLEARING LIMITS HANDLED AND DISPOSED OF IN A MANNER THAT DOES NOT CAUSE CONTAMINATION OF STORMWATER. � ``} v�o 9�0��?�,�q�/�FO� _
<br /> 1. PRIOR TO BEGINNING LAND DISTURBING ACTIVITIES (INCLUDING CLEARING AND GRADING) LIQU DOPRODU�CTSAIPETROLEUM PRODUC SO AND OT ERNMATERIALSATHAT HA OVIDHE POTEN IAL TOMPOSE A GRATE FRAME a a���� F���'s����,a'�o�/
<br /> CLEARLY MARK ALL CLEARING LIMITS AND TREES THAT ARE TO BE PRESERVED WITHIN THE p C�o o�. s ��, ti
<br /> CONSTRUCTION AREA AS SHOWN ON THE DRAWINGS. THREAT TO HUMAN HEALTH OR THE ENVIRONMENT. ON-SITE FUELING TANKS SHALL INCLUDE SECONDARY a a <"-�,o��. �a�,
<br /> 2. SILT FENCE, GEOTEXTILE ENCASED BARRIERS, CONSTRUCTION FENCE, ORANGE PLASTIC CONTAINMENT. � o - c a �� os,F,a��`.s,so
<br /> FENCE, OR OTHER APPROVED MEASURES MAY BE USED TO MARK THE CLEARING LIMITS AT 3. MAINTENANCE, FUELING, AND REPAIR OF HEAVY EQUIPMENT AND VEHICLES SHALL BE CONDUCTED USING �� � `�'o�� Q
<br /> THE CONTRACTOR'S OPTION. SPILL PREVENTION AND CONTROL MEASURES. CONTAMINATED SURFACES SHALL BE CLEANED IMMEDIATELY SEDIMENT AND DEBRIS o .
<br /> 3. THE DUFF LAYER, NATIVE TOPSOIL, AND NATURAL VEGETATION SHALL BE RETAINED IN FOLLOWING ANY SPILL INCIDENT. a a -, OVERFLOW BYPASS ���Q Z
<br /> 4. WHEEL WASH OR TIRE BATH WASTEWATER SHALL BE DISCHARGED TO A SEPARATE ON-SITE TREATMENT � �Q v
<br /> AN UNDISTURBED STATE TO THE MAXIMUM DEGREE PRACTICABLE. v R=25' MIN. Q
<br /> SYSTEM OR TO THE SANITARY SEWER WtTH LOCAL SEWER DISTRICT APPROVAL. , 12" MIN. Q Q ' ` O
<br /> 5. APPLICATION OF FERTILIZERS AND PESTICIDES SHALL BE CONDUCTED IN A MANNER AND AT APPLICATION - .:�;.s:= (�a� v O
<br /> SUGGESTED BMPs/BMPs TO BE USED: RATES THAT WILL NOT RESULT IN LOSS OF CHEMI�CAL TO STORMWATER RUNOFF. MANUFACTURERS' LABEL 'v D - �'-\`T�� � � 4"-8" QUARRY SPALLS � � J �
<br /> BMP C103: HIGH VISIBILITY PLASTIC FENCE `��':'':��:,' �, D �\�' �
<br /> REQUIREMENTS FOR APPLICATION RATES AND PROCEDURES SHALL BE FOLLOWED. , - BELOW INLET GRATE DEVICE PLACE GEOTEXTILE UNDER SPALLS �; �� I"'� �
<br /> 6. BMPs SHALL BE USED TO PREVENT OR TREAT CONTAMINATION OF STORMWATER RUNOFF BY pH MODIFYING ��` ° GEOTEXTILE SHALL MEET THE FOLLOWING STANDARDS: � �����5`'�P Q � J Q
<br /> ELEMENT �2: ESTABLISH CONSTRUCTION ACCESS b � �, �
<br /> 1. CONSTRUCTION VEHICLE ACCESS AND EXIT SHALL BE LIMITED TO ONE ROUTE. REFER SOURCES. THESE SOURCES INCLUDE, BUT ARE NOT LIMITED T0: BULK CEMENT, CEMENT KILN DUST, FLY ASH, � `� �����P � ^ �
<br /> NEW CONCRETE WASHING AND CURING WATERS WASTE STREAMS GENERATED FROM CONCRETE GRINDING AND GRAB TENSILE STRENGTH (ASTM D-4751) = 200 PSI MIN o ��� W
<br /> TO SWPP PLAN OF THESE PLANS FOR THE CONSTRUCTION ENTRANCE LOCATION. ALL � FILTERED GRAB TENSILE ELONGATION ASTM D-4632) = 30� MIN �- p M �
<br /> ACCESS/EXIT POINTS SHALL BE STABILIZED WITH QUARRY SPALLS, CRUSHED ROCK OR SAWING, EXPOSED AGGREGATE PROCESSES, AND CONCRETE PUMPING AND MIXER WASHOUT WATERS. � � _ `' ,
<br /> PERMITTEES SHALL ADJUST THE H OF STORMWATER IF NECESSARY TO PREVENT VIOLATIONS OF WATER WATER MULLEN BURST STRENGTH ASTM D-3786-SOa 400 PSI MIN W
<br /> OTHER EQUIVALENT BMP, TO MINIMIZE THE TRACKING OF SEDIMENT ONTO PUBLIC ROADS. P AOS (ASTM D-4751) = 20-45 (U.S. STD SIEVE SIZE) p C � � �
<br /> 2. IF THE STABILIZED CONSTRUCTION ENTRANCE IS NOT EFFECTIVE IN PREVENTING Q U A L I T Y S T A N D A R D S. z v �
<br /> SEDIMENT FROM BEING TRACKED ONTO PUBLIC ROADS, WHEEL WASH OR TIRE BATHS 7• PERMITTEES SHALL OBTAIN WRITTEN APPROVAL FROM ECOLOGY PRIOR TO USING CHEMICAL TREATMENT, DETAIL - STABILIZED CONSTRUCTION ENTRANCE a Q Z �
<br /> SHALL BE LOCATED ON SITE. OTHER THAN CARBON DIOXIDE OR DRY ICE TO ADJUST pH. _..I
<br /> 3. IF SEDIMENT IS TRACKED OFF SITE, PUBLIC OR PRIVATE ROADS SHALL BE CLEANED SUGGESTED BMPs BMPs TO BE USED: REF: C.O.E. STD DETAIL 201 W
<br /> THOROUGHLY AT THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER. � O W
<br /> SEDIMENT SHALL BE REMOVED FROM ROADS BY SHOVELING OR PICKUP SWEEPING AND BMP C151: CONCRETE HANDLING o � 0 0 NO SCALE � �n m
<br /> SHALL BE TRANSPORTED TO A CONTROLLED SEDIMENT DISPOSAL AREA. BMP C152: SAWCUTTING AND SURFACE POLLUTION PREVENTION , � O �/J M
<br /> 4. STREET WASHING IS ALLOWED ONLY AFTER SEDIMENT IS REMOVED AS DESCRIBED BMP C153: MATERIAL DELIVERY, STORAGE AND CONTAINMENT ' ' Z 7 �
<br /> ABOVE. STREET WASH WASTEWATER SHALL BE CONTROL.LED BY PUMPING BACK ON SITE ELEMENT �10: CONTROL DE-WATERING - 0' - �' � � L� M
<br /> OR OTHERWISE BE PREVENTED FROM DISCHARGING INTO SYSTEMS TRIBUTARY TO WATERS 1. FOUNDATION, VAULT AND TRENCH DE-WATERING WATER, WHICH HAVE SIMILAR CHARACTERISTICS TO , o � = X
<br /> OF THE STATE. STORMWATER RUNOFF AT THE SITE, SHALL BE DISCHARGED INTO A CONTROLLED CONVEYANCE SYSTEM PRIOR ' � D ' p D ' � D ' 6 �i � O m
<br /> TO DISCHARGE TO A SEDIMENT TRAP OR SEDIMENT POND.
<br /> SUGGESTED BMPs/BMPs TO BE USED: 2. CLEAN, NON-TURBID DE-WATERING WATER, SUCH AS WELL-PONT GROUND WATER, CAN BE DISCHARGED TO . ° , ° , ' , ' ��,, �,� � (� W •-� O
<br /> BMP C105: STABILIZED CONSTRUCTION ACCESS SYSTEMS TRIBUTARY T0, OR DIRECTLY INTO SURFACE WATERS OF THE STATE, AS SPECIFIED IN ELEMENT #8, ��� � Q
<br /> BMP C140: DUST CONTROL PROVIDED THE DE-WATERING FLOW DOES NOT CAUSE EROSION OR FLOODING OF RECEIVING WATERS. CLEAN �,, D �� 24" �
<br /> DE-WATERING WATER SHOULD NOT BE ROUTED THROUGH STORMWATER SEDIMENT PONDS. SECTION VIEW Qp ,��
<br /> ELEMENT ,�3: CONTROL FLOW RATES 3. OTHER DE-WATERING DISPOSAL OPTIONS MAY INCLUDE: � � z
<br /> 1. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE A.) INFILTRATION RETRIEVAL SYSTEM �
<br /> PROTECTED FROM EROSION DUE TO INCREASES IN THE VELOCITY AND PEAK VOLUMETRIC B.) TRANSPORT OFF SITE IN A VEHICLE, SUCH AS A VACUUM FLUSH TRUCK, FOR LEGAL DISPOSAL IN A DRAINAGE GRATE (TYP) 2"-4" ROCK
<br /> FLOW RATE OF STORMWATER RUNOFF FROM THE PROJECT SITE. MANNER THAT DOES NOT POLLUTE STATE WATERS. � RECTANGULAR GRATE SHOWN
<br /> SUGGESTED BMPs/BMPs TO BE USED: C.) ECOLOGY APPROVED ON-SITE CHEMICAL TREATMENT OR OTHER SUITABLE TREATMENT TECHNOLOGIES.
<br /> D.) SANITARY SEWER DISCHARGE WITH LOCAL SEWER DISTRICT APPROVAL, IF THERE IS NO OTHER ,� 2.
<br /> NOT APPLICABLE 2• �
<br /> OPTION. FLOW � 24"
<br /> ELEMENT �4: INSTALL SEDIMENT CONTROLS E.) USE OF A SEDIMENTATION BAG (DIRTBAG OR APPROVED EQUAL) WITH OUTFALL TO A DITCH OR -�" � ��
<br /> 1. THE DUFF LAYER, NATIVE SOIL, AND NATURAL VEGETATION SHALL BE RETAINED IN AN SWALE FOR SMALL VOLUMES OF LOCALIZED DE-WATERING. '�
<br /> UNDISTURBED STATE TO THE MAXIMUM EXTENT PRACTICABLE. 4. HIGHLY TURBID CONTAMINATED DE-WATERING WATER FROM CONSTRUCTION EQUIPMENT OPERATION, . ,, � C�
<br /> 2. SEDIMENT CONTROL BMPs SHALL BE CONSTRUCTED AS ONE OF THE FIRST STEPS IN CLAMSHELL DIGGING, CONCRETE TREMIE POUR OR WORK INSIDE A COFFERDAM SHALL BE HANDLED SEPARATELY ROCK CHECK DAM SECTIONS
<br /> GRADING. THESE BMPs SHALL BE FUNCTIONAL BEFORE OTHER LAND DISTURBING FROM STORMWATER. O,�`��- � �j•r,
<br /> ACTIVITIES TAKE PLACE. SUGGESTED BMPs/BMPs TO BE USED: � �' �
<br /> 3. PRIOR TO LEAVING THE CONSTRUCTION SITE, STORMWATER RUNOFF FROM DISTURBED BMP C241: SEDIMENT BASIN OVERFLOW BYPASS 2 L = THE DISTANCE SUCH THAT POINTS �e � �
<br /> AREAS SHALL PASS THROUGH AN APPROPRIATE SEDIMENT REMOVAL BMP. RUNOFF FROM o
<br /> FULL STABILIZED AREAS MAY BE DISCHARGED WITHOUT A SEDIMENT REMOVAL BMP, BUT BELOW INLET GRATE DEVICE (TYP) �� � A & B ARE OF EQUAL ELEVATION � � � �
<br /> MUST MEET THE FLOW CONTROL PERFORMANCE STANDARD OF ELEMENT 3. ELEMENT �11: MAINTAIN BMPs
<br /> # 1. INSPECT EROSION CONTROL DEVICES ON A WEEKLY BASIS AND AFTER EACH RUNOFF EVENT. MAKE �'��,/�/��/� A B � ��
<br /> SUGGESTED BMPs/BMPs TO BE USED: NECESSARY REPAIRS AND MAINTENANCE TO ENSURE CONTINUED PERFORMANCE OF EROSION AND SEDIMENT �����/�,/i, 2 � - 2 �'''
<br /> CONTROLS. �_ � � � �
<br /> BMP C233: TEMPORARY SILT FENCE �� �\\ \
<br /> 2. WHEN SEDIMENT ACCUMULATION IN SEDIMENTATION STRUCTURES, OTHER THAN INLET PROTECTION DEVICES, ISOMETRIC VIEW /•/i�/\�' � .
<br /> . i,/�\�i\�' �
<br /> ELEMENT �5: STABILIZE SOILS i / / / � ���. �
<br /> 1. EXPOSED AND UNWORKED SOILS SHALL BE STABILiZED BY APPLICATION OF EFFECTIVE HAS REACHED A POINT ONE-THIRD DEPTH OF SEDIMENT STRUCTURE OR DEVICE, OR IF FLOW THROUGH THE /��/� i.� i� ���%/i,/��j
<br /> BMPs THAT PROTECT THE SOIL FROM EROSIVE FORCES OF RAINDROPS. FLOWING WATER, DEVICE IS REDUCED BY MORE THAN ONE-THIRD CAPACITY, THE CONTRACTOR SHALL REMOVE AND REPLACE DETAI L - STORM DRAI N I N LET PROTECTION 1' SUMP
<br /> AND WIND. DISPOSABLE DEVICES OR CLEAN AND DISPOSE OF SEDIMENT.
<br /> REF: C.O.E. STD. DWG 210
<br /> 2. TO PREVENT EROSION, NO SOILS SHALL REMAIN EXPOSED AND UNWORKED FOR MORE 3. TEMPORARY EROSION AND SEDIMENT CONTROL BMPs SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL NO SCALE
<br /> THAN THE TIME PERIODS SET FORTH BELOW: SITE STABILIZATION IS ACHIEVED OR AFTER THE TEMPORARY BMPs ARE NO LONGER NEEDED. TRAPPED SPACING BETWEEN CHECK DAMS
<br /> DURING THE WET SEASON (OCTOBER 1 - APRIL 30): 2 DAYS SEDIMENT SHALL BE REMOVED OR STABILIZED ON SITE. DISTURBED SOILS SHALL BE PERMANENTLY Z o
<br /> DURING THE DRY SEASON (MAY 1 - SEPT. 30): 7 DAYS STABILIZED. ELEMENT �13: PROTECT LOW IMPACT DEVELOPMENT BMPs _
<br /> THIS STABILIZATION REQU�REMENT APPLIES TO ALL SOILS ON SITE WHETHER AT FINAL 1. AREAS ON-SITE WHICH UTILIZE STORMWATEER MANAGEMENT BMPs SHALL BE PROTECTED FROM SILTATION �
<br /> GRADE OR NOT. THESE TIMES MAY BE ADJUSTED BY THE LOCAL�PERMITTING AUTHORITY AND COMPACTION DURING THE CONSTRUCTION PROCESS. DETAIL - ROCK CHECK DAM N (� � o
<br /> SUGGESTED BMPs/BMPs TO BE USED: a DO NOT ALLOW MUDDY CONSTRUCTION EQUIPMENT ON BASE MATERIAL OR PAVEMENT. DO NOT ALLOW cn cv �
<br /> I F I T C A N B E S H O W N T H A T S I T E C O N D I T I O N S OR THE AVERAGE TIME BETWEEN STORM ) S E D I M E N T-L A D EN R U N O F F O N T O P E R M E A B L E P A V E M E N T S O R B A S E M A T E R I A L S.
<br /> B M P C 1 5 0: M A T E R I A L O N H A N D R E F: C.O.E. S T D D E T A I L 2 0 6 Z W � � o
<br /> EVENTS JUSTIFIES A DIFFERENT STANDARD.
<br /> 3. S O I L S S H A L L B E S T A B I L I Z E D A T T H E E N D O F T H E S H I F T B E F O R E A H O L I D A Y O R b) PAVEMENT FOULED WITH SEDIMENTS OR NO LONGER PASSING AN INITIAL INFILTRATION TEST MUST BE NO SCALE Q � .> �;
<br /> E L E M E N T �1 2: M A N A G E T H E P R O J E C T CLEANED USING PROCEDURES fN ACCORDANCE WITH THE CURRENT DOE MANUAL OR MANUFACTURERS � Q � � �
<br /> WEEKEND IF NEEDED BASED ON THE WEATHER FORECAST. 1. PHASING OF CONSTRUCTION: � � N
<br /> 4. SOIL STOCKPILES SHALL BE STABILIZED FROM EROSION, PROTECTED WITH SEDIMENT PROCEDURES.
<br /> a) DEVELOPMENT PROJECTS SNALL BE PHASED WHERE FEASIBLE IN ORDER TO PREVENT, TO THE MAXIMUM W � � �ri
<br /> TRAPPING MEASURES, AND WHERE POSSIBLE, BE LOCATED AWAY FROM STORM DRAIN EXTENT PRACTICABLE, THE TRANSPORT OF SEDIMENT FROM THE DEVELOPMENT SITE DURING CONSTRUCTION. c) KEEP ALL HEAVY EQUIPMENT OFF EXISTING SOILS UNDER LID FACILITIES THAT HAVE BEEN EXCAVATED TO C� cv
<br /> INLETS, WATERWAYS, AND DRAINAGE CHANNELS. REVEGETATION OF EXPOSED AREAS AND MAINTENANCE OF THAT VEGETATION SHALL BE AN INTEGRAL PART FINAL GRADE TO RETAIN THE INFILTRATION RATE OF THE SOILS. 0 O � � �
<br /> 5. APPLICABLE BMPs INCLUDE, BUT ARE NOT LIMITED T0: TEMPORARY AND PERMANENT OF THE CLEARING ACTIVITIES FOR ANY PHASE. w�R���aRi �� � � c � �i
<br /> SEEDING, SODDING, MULCHING, PLASTIC COVERING, EROSION CONTROL FABRICS AND b) CLEARING AND GRADING ACTIVITIES FOR DEVELOPMENTS SHALL BE PERMITTED ONLY IF CONDUCTED SUGGESTED BMPs/BMPs TO BE USED: n,ewLxcw�,o�aoR � � � p
<br /> MATTING, SOIL APPLICATION OF POLYACRYLAMIDE (PAM), THE EARLY APPLICATION OF BMP C103: HIGH VISIBILITY FENCE DISTURBEDSIDE � Q � � L �
<br /> PURSUANT TO AN APPROVED SITE DEVELOPMENT PLAN (e.g., SUBDIVISION APPROVAL) THAT ESTABLISHES s��� a� �
<br /> GRAVEL BASE ON AREAS TO BE PAVED AN D DU S T C O N T R OL. S E L E C T S O I L S T A B I L I Z A T I O N B M P C 2 3 3: S I�T F E N C E � >
<br /> MEASURES SHALL BE APPROPRIATE FOR THE TIME OF YEAR, SITE CONDITIONS, ESTIMATED APPROVED AREAS OF CLEARING, GRADING, CUTTING AND FILLING. WHEN ESTABLISHING THESE PERMITTED � �ii7ERFAeRic � � Q � W
<br /> DURATION OF USE, AND THE POTENTIAL WATER QUALITY IMPACTS. CLEARING AND GRADING AREAS, CONSIDERATION SHOULD BE GIVEN TO MINIMIZING REMOVAL OF EXISTING � O p o
<br /> TREES AND MINIMIZING DISTURBANCE AND COMPACTION OF NATIVE SOILS EXCEPT AS NEEDED FOR BUILDING MATERw��`.� z Z N
<br /> 6. REMOVE ALL TESC MEASURES AS SOON AS PRACTICAL AFTER ESTABLISHMENT OF PURPOSES. THESE PERMITTED CLEARING AND GRADING AREAS AND ANY OTHER AREAS REQUIRED TO S.W.P.P.P. GENERAL NOTES � p Q a �
<br /> UNIFORM GRASS GROWTH OR INSTALLATION OF OTHER PERMANENT STABILIZATION PRESERVE CRITICAL OR SENSITIVE AREAS, BUFFERS, NATIVE GROWTH PROTECTION EASEMENTS, OR TREE
<br /> MEASURES. REPAIR ANY DAMAGE TO STABILIZED SURFACES AFTER REMOVAL OF TESC RETENTION AREAS AS MAY BE REQUIRED BY LOCAL JURISDICTIONS, SHALL BE DELINEATED ON THE SITE NOTE 1: STRUCTURAL FILL NOTE 4: FILL SLOPES
<br /> � MEASURES. PLANS AND THE DEVELOPMENT SITE. ALL FILL USED ON THE PROJECT SHALL BE STRUCTURAL FILL MATERIAL. ALL NEW SLOPES SHALL BE NO STEEPER THAN 2H:1V. IF EXISTING FILL IS O �
<br /> � STRUCTURAL FILL SHALL CONSIST OF PROPERLY MOISTURE CONDITIONED WITHIN THE OUTER 10 FEET (HORIZONTAL DISTANCE) FROM FINISHED GRADE
<br /> X SUGGESTED BMPs/BMPs TO BE USED: 2. SEASONAL WORK LIMITATIONS: AND COMPACTED ON-SITE FILL SOILS OR IMPORTED GRANULAR MATERIAL OF FILL SLOPES, THEN EXISTING FI�L SHALL BE REMOVED TO A DISTANCE __
<br /> w BMP C120: TEMPORARY AND PERMANENT SEEDWG SUCH AS PIT RUN SAND AND GRAVEL THAT IS FREE OF DEBRIS, ORGANIC OF AT LEAST 10 FEET FROM THE SLOPE FACE AND BE REPLACED WITH BAGKFILL AND -�''``�� ;�
<br /> 0
<br /> FROM OCTOBER 1 THROUGH APRIL 30, CLEARING, GRADING, AND OTHER SOIL DISTURBING ACTIVITIES SHALL CONTAMINANTS, OR ROCK FRAGMENTS LARGER THAN 6 INCHES. STRUCTURAL FILL COMPACTED TO AT LEAST 90 PERCENT OF THE MDD PER ca�+QAcr�o
<br /> BMP C140: DUST CONTROL ONLY BE PERMITTED IF SHOWN TO THE SATISFACTION OF THE LOCAL PERMITTING AUTHORITY THAT THE I
<br /> � COMPACTION SHALL BE ACHIEVED BY MECHANICAL MEANS AND A ASTM D 1557. STRUCTURAL FILL SHALL BE PLACED IN APPROXIMATELY 6 � � REVISIONS: APPD.
<br /> r,� TRANSPORT OF SEDIMENT FROM THE CONSTRUCTION SITE TO RECEIVING WATERS WILL BE PREVENTED THROUGH
<br /> o ELEMENT �6: PROTECT SLOPES SHEEPS-FOOT ROLLER IS RECOMMENDED IN ADDITION TO A STEEL DRUM INCH LOOSE LIFTS PRIOR TO COMPACTION. ALL FILL SLOPES SHALL BE
<br /> o A COMBINATION OF THE FOLLOWING: � � �
<br /> 0 1. DESIGN, CONSTRUCT, AND PHASE CUT AND FILL SLOPES IN A MANNER THAT WILL VIBRATORY ROLLER. ALL FILL SHALL BE COMPACTED TO THE REQUIRED OVERBUILT BY AT LEAST 2 FEET AND THEN CUT BACK TO DESIGN GRADE e.
<br /> o MINIMIZE EROSION. APPLICABLE PRACTICES INCLUDE, BUT ARE NOT LIMITED T0, REDUCING a) SITE CONDITIONS INCLUDING EXISTING VEGETATIVE COVERAGE, SLOPE, SOIL TYPE, AND PROXIMITY TO PERCENTAGE OF THE MAXIMUM DRY DENSITY (MDD) PER AMERICAN SOCIETY PRIOR TO PLACING LANDSCAPING MATERIALS. THE BOTTOM OF THE FILL �
<br /> � CONTINUOUS LENGTH OF SLOPE WITH TERRACING AND DIVERSIONS, REDUCING SLOPE RECEIVING WATERS; AND FOR TESTING AND MATERIALS (ASTM) D 1557. ZONE SHALL BE KEYED INTO THE EXISTING SOILS BY AT LEAST 3 FEET I
<br /> STEEPNESS, AND ROUGHENING SLOPE SURFACES (e.g., TRACK WALKING). b) LIMITATIONS ON ACTIVITIES AND THE EXTEND OF DISTURBED AREAS; AND BELOW ADJACENT GRADE. THE STRUCTURAL FILL MATERIALS SHALL BE �
<br /> "; 2. OFF-SITE STORMWATER RUN-ON OR GROUNDWATER SHALL BE DIVERTED AWAY FROM c) PROPOSED EROSION AND SEDIMENT CONTROL MEASURES. NOTE 2: SITE GRADING BENCHED INTO THE TEMPORARY CUT SLOPE AT LEAST 4 FEET
<br /> a SLOPES AND DISTURBED AREAS WITH INTERCEPTOR DIKES, PIPES, AND/OR SWALES. ALL FILL AND BACKFILL SHALL BE PLACED IN THIN LIFTS (APPROXIMATELY 6 HORIZONTALLY FOR EVERY 2 FEET VERTICAL. THE SLOPES SHALL BE SECTION A-A
<br /> OFF-SITE STORMWATER SHOULD BE MANAGED SEPARATELY FROM STORMWATER BASED ON THE INFORMAT�ON PROVIDED AND LOCAL WEATHER CONDITIONS, THE PROJECT LEAD MAY EXPAND TRACK WALKED PRIOR TO PLACING LANDSCAPE MATERIALS AND
<br /> c� INCHES) SO THAT UNIFORM COMPACTION CAN BE ACHIEVED THROUGHOUT HYDROSEEDING. F��7��FA�aic nnareaiA�
<br /> W GENERATED ON THE SITE. OR RESTRICT THE SEASONAL LIMITATION ON SITE DISTURBANCE. THE PROJECT LEAD SHALL TAKE THE ENTIRE LIFT THICKNESS. FILL PLACED WITHIN 24 INCHES OF ROUGH nn�aa,F��nox ora
<br /> � ENFORCEMENT ACTION - SUCH AS NOTICE OF VIOLATION ADMINISTRATIVE ORDER PENALTY OR STOP-WORK A
<br /> � 3. DO NOT CLEAR AND GRUB SLOPES GREATER THAN 4 (HORIZONTAL):1 (VERTICAL) ' ' ' GRADE SHALL BE COMPACTED TO AT LEAST 95 PERCENT MDD PER ASTM D �c�u��At��r�-r -. _ wiR�R�N�s ���xa•x,a cAuce
<br /> w ORDER UNDER THE FOLLOWING CIRCUMSTANCES: 1557. FILL AND BACKFILL MORE THAN 24 INCHES BELOW ROUGH GRADE � f �T�Pic�y /� oR�up�REFABRIC
<br /> w UNLESS FURTHER WORK RESULTING IN STABILIZATION OF THE SLOPES TO BE CLEARED AND NOTE 5: MONITORING AND TESTING \
<br /> � - IF, DURING THE COURSE OF ANY CONSTRUCTION ACTIVITY OR SOIL DISTURBANCE DURING THE SEASONAL / 1
<br /> GRUBBED IS SCHEDULED. SHALL BE COMPACTED TO AT LEAST 92 PERCENT MDD PER ASTM D 1557. THE OWNER WILL EMPLOY THE GEOTECHNICAL ENGINEER (GEOENGINEERS) TO �
<br /> c� 4. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES, LIMITATION PERIOD, SEDIMENT LEAVES THE CONSTRUCTION SITE CAUSING A VIOLATION OF THE SURFACE IF CUTS ARE REQUIRED ACROSS TH SITE TO ACHIEVE GRADE, THEN THE OBSERVE EARTHWORK ACTIVITIES AND TO TEST STRUCTURAL FILL PLACED
<br /> w WATER QUALITY STANDARD• OR
<br /> CONSISTENT WITH SAFETY AND SPACE CONSIDERATIONS. ' EXISTING SOILS SHALL BE CUT TO 2 FEET BELOW ROUGH GRADE, ON THE SITE. THE CONTRACTOR SHALL FACILITATE OBSERVATIONS AND .. ..
<br /> o - IF CLEARING AND GRADING LIMITS OR EROSION AND SEDIMENT CONTROLS MEASURES SHOWN IN THE
<br /> Q 5. CHECK DAMS SHALL BE PLACED AT REGULAR INTERVALS WITHIN CONSTRUCTED PROOF-ROLLED, AND THEN THE UPPER 2 FEET SHALL BE REPLACED WITH TESTING BY THE OWNERS REPRESENTATIVES AS NEEDED.
<br /> o CHANNELS THAT ARE CUT DOWN A SLOPE. APPROVED PLAN ARE NOT MAINTAINED. STRUCTURAL FILL COMPACTED TO AT LEAST 95 PERCENT OF THE MAXIMUM " DATE: AUGUST, 2017
<br /> � THE FOLLOWING ACTIVITIES ARE EXEMPT FROM THE SEASONAL CLEARING AND GRADING LIMITATIONS: DRY DENSITY. NOTE 6: CESCL NOTE
<br /> DESIGN: JNM
<br /> r�, SUGGESTED BMPs/BMPs TO BE USED: - ROUTINE MAINTENANCE AND NECESSARY REPAIR OF EROSION AND SEDIMENT CONTROL BMPs; PRIOR TO PLACING NEW FILL THE EXPOSED SUBGRADE ACROSS THE SITE CONTRACTOR TO PROVIDE ALL WASHINGTON STATE DEPARTMENT OF V V DRAWN: CD
<br /> o BMP C120: TEMPORARY AND PERMANENT SEEDING - ROUTINE MAINTENANCE OF PUBLIC FACILITIES OR EXISTING UTILITY STRUCTURES THAT DO NOT EXPOSE THE SHALL BE EVALUATED BY PROOF-ROLLING USING A PIECE OF HEAVY ECOLOGY CESCL SERVICES INCLUDING STORMWATER MONITORING, RECORDING
<br /> � SOIL OR RESULT IN THE REMOVAL OF THE VEGETATIVE COVER TO SOIL; AND TIRE-MOUNTED EQUIPMENT OR A LOADED DUMP TRUCK. ALL SOFT AREAS AND REPORTING. � � CHECKED:
<br /> o ELEMENT �7: PROTECT DRAIN INLETS - ACTIVITIES WHERE THERE IS ONE HUNDRED PERCENT INFILTRATION OF SURFACE WATER RUNOFF WITHIN THE IDENTIFIED DURING THE PROOF-ROLL SHALL BE REMOVED AND REPLACED v ` REVISION
<br /> X 1. ALL STORM DRAIN INLETS OPERABLE DURING CONSTRUCTION AND ALL INLETS WITHIN SITE IN APPROVED AND INSTALLED EROSION AND SEDIMENT CONTROL FACILITIES. WITH STRUCTURAL FILL. AFTER PROOFROLLING, THE SUBGRADE AREAS SHALL NOTE 7: OVERFLOW NOTE: " " NUMBER:
<br /> � 200' DOWNSTREAM OF THE PROJECT SITE SHALL BE PROTECTED WITH CATCH BASIN BE THOROUGHLY COMPACTED TO A FIRM AND UNYIELDING CONDITION. ALL OVERFLOWS AND OTHER DISCHARGE OF CONSTRUCTION
<br /> � FILTERS SO THAT STORMWATER RUNOFF DOES NOT ENTER THE CONVEYANCE SYSTEM 3. COORDINATE WITH UTILITIES AND OTHER CONTRACTORS STORMWATER MUST COMPLY WITH TURBIDITY THRESHOLDS. �
<br /> ? WITHOUT FIRST BEING FILTERED OR TREATED TO REMOVE SEDIMENT. CATCH BASIN FILTERS THE PRIMARY PROJECT PROPONENT SHALL EVALUATE, WITH INPUT FROM UTILITIES AND OTHER CONTRACTORS, NOTE 3: REGRADED SLOPES SCALE:
<br /> °- IN THE ROADWAY WILL BE OIL/SEDIMENT FILTERS AND CATCH BASIN FILTERS OUTSIDE THE STORMWATER MANAGEMENT REQUIREMENTS FOR THE ENTIRE PROJECT, INCLUDING THE UTILITIES, WHEN ALL REGRADED SLOPES SHALL BE NO STEEPER THAN 2H:1V. THE OUTER 10 NOTE 8: STABILIZATION NOTE: � � � ( i I � I
<br /> �� OF THE ROADWAY WILL BE SEDIMENT FILTERS. PREPARING THE CONSTRUCTION SWPPP. FEET (HORIZONTAL DISTANCE) FROM FINISHED GRADE OF ALL REGRADED PARKING AREA STABILIZATION IS THE PREFERRED BMP FOR ANY
<br /> 0 2. APPROACH ROADS SHALL BE KEPT CLEAN. SEDIMENT AND STREET WASH WATER SLOPES SHALL BE REMOVED AND REPLACED WITH STRUCTURAL FIL� EXPOSED SOIL WITHIN THE PARKING LOT. TO PREVENT EROSION, NO � � � I A I ' I � PROJECT NUMBER:
<br /> ��' SHALL NOT BE ALLOWED TO ENTER STORM DRAINS WITHOUT PRIOR AND ADEQUATE 4. INSPECTION AND MONITORING: COMPACTED TO AT LEAST 90 PERCENT OF THE MDD PER ASTM D 1557. SOILS SHALL REMAIN EXPOSED AND UNWORKED FOR MORE THAN 2 � sreeLPosrs ! � � � k
<br /> Uv TREATMENT. STRUCTURAL FILL SHALL BE PLACED IN APPROXIMATELY 6 INCH LOOSE DAYS DURING THE WET SEASON AND 7 DAYS DURING THE DRY oo.c. L! LI UGDX0003
<br /> �,�, 3. INLET PROTECTION DEVICES SHOULD BE CLEANED OR REMOVED AND REPLACED WHEN SITE INSPECTION SHALL BE CONDUCTED BY A PERSON WHO IS KNOWLEDGEABLE IN THE PRINCIPLES AND LIFTS PRIOR TO COMPACTION. ALL REGRADED SLOPES SHALL BE OVERBUILT SEASON. CONTRACTOR TO UTILIZE OTHER COVER PRACTICES AS
<br /> m m SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE STORAGE (OR WHEN FILLED WITH PRACTICES OF EROSION AND SEDIMENT CONTROL AT LEAST ONCE EVERY CALENDAR WEEK AND WITHIN 24 BY AT LEAST 2 FEET AND THEN CUT BACK TO DESIGN GRADE PRIOR TO NECESSARY TO COMPLY WITH SEASONAL GRADING CONSTRAINTS. E�Eva�lor� DRAWING FILE:
<br /> SIX-INCHES OF SEDIMENT). HOURS OF ANY RAINFALL EVENT. THIS PERSON HAS THE SKILLS T0: PLACING LANDSCAPING MATERIALS. THE BOTTOM OF THE FILL ZONE SHALL r� �� 2���
<br /> a� ASSESS THE SITE CONDITIONS AND CONSTRUCTION ACTIVITIES THAT COULD IMPACT THE QUALITY OF BE KEYED INTO THE EXISTING SOILS BY AT LEAST 3 FEET BELOW ADJACENT -'CITY OF EVERETT TEMPORARY SILT FENCE �a� EC-004-EC-UGDX0003_FEDEX.dwg
<br /> �� BMPs TO BE USED:
<br /> STORMWATER, AND GRADE. THE STRUCTURAL FILL MATERIALS SHALL BE BENCHED INTO THE ��� 1 PUBLIC WORKS
<br /> 0 o BMP C220: STORM DRAIN INLET PROTECTION (WSDOT STD PLAN I-40.20-00) b) ASSESS THE EFFECTIVENESS OF EROSION AND SEDIMENT CONTROL MEASURES USED TO CONTROL THE TEMPORARY CUT SLOPE AT LEAST 4 FEET HORIZONTALLY FOR EVERY 2 �R� DEPARTMEPIT 2� '4'
<br /> �����! OE Std L w :
<br /> M N BMP C233: SILT FENCE QUALITY OF STORMWATER DISCHARGES. FEET VERTICAL. THE SLOPES SHALL BE TRACK WALKED PRIOR TO PLACING SHEET NO.
<br /> � � LANDSCAPE MATERIALS AND HYDROSEEDING.
<br /> CALL IF INSPECTION AND/OR WATER MONITORING OF SITE RUNOFF REVEALS THAT THE BMPs IDENTIFIED IN THE
<br /> `�� 2 BUSINESS DAYS CONSTRUCTION SWPPP ARE INADEQUATE, THE CONTRACTOR SHALL IMMEDIATELY ADD BMPs TO THE SWPPP AS �
<br /> �M
<br /> °°" BEFORE YOU DIG NECESSARY.
<br /> �o FOR UTILITY LOCATE SUGGESTED BMPs/BMPs TO BE USED: OF � 2
<br /> ❑ �, 1-800-424-5555 BMP C150: MATERIAL ON HAND
<br /> o m BMP C162: SCHEDULING
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