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STORMWATER POLLUTION PREVENTION PLAN (SWPPP): A PQRTION OF THE NW 1 /4 OF THE NE 1/4 QF SECTION 7, T 28 N, R 5 E, WM
<br /> THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING THE EROSION CQNTROL MEASURES ELEMENT �8• STABILIZE CHANNELS AND OUTLETS
<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
<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 wili
<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.
<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).
<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 aliow removal of the BtGD without spilling the � .
<br /> STABILIZED IN FfNISH GRADES. CONVEYANCE SYSTEMS. collected material. /Q.oQ'� .s,
<br /> 4. Perform maintenance in accordance with Standard Specification 8-01.3(15). -�'a'�' � `.�'�`"c� `r�F
<br /> THE FOLLOWING DESCRIBES HOW THE CONSTRUCTION SWPPP ADDRESSES EACH OF THE 13 SUGGESTED BMPs/BMPs TO BE USED: �,}y a �"9y�`�'�� �!�
<br /> REQUIRED ELEMENTS. REFER TO THESE PLANS FOR DRAWINGS OF THE PROJECT, VICINITY NOT APPLICABLE � a��� �?-�?''9�- ��.
<br /> MAP, SITE MAP, EROSION AND SEDIMENT CONTROL MEASURES, AND EROSION AND 5"MAX � 9�.p�s��� '�o-
<br /> SEDIMENT CONTROL DETAILS. ELEMENT #9: CONTROL POLLUTANTS DRAINAGE GRATE a� ��'F`�'���'Fa�� �
<br /> 1. ALL POLLUTANTS, INCLUDING WASTE MATERIALS AND DEMOLITION DEBRIS, THAT OCCUR ONSITE SHALL BE TRIM � -�,o��,� �,p J O
<br /> ELEMENT #1: PRESERVE VEGETATIONfMARK CLEAR�NG LIMITS HANDLED AND DISPOSED OF IN A MANNER THAT DOES NOT CAUSE CONTAMINATION OF STORMWATER. s`�o Q Q
<br /> 1. PRIOR TO BEGINNING LAND DISTURBING ACIIVITIES (INCLUDING CLEARING AND GRADING) 2. COVER, CONTAINMENT, AND PROTECTION FROM VANDALISM SHALL BE PROVIDED FOR ALL CHEMICALS, GRATE FRAME � I�-� Q
<br /> CLEARLY MARK ALL CLEARING LIMITS AND TREES 7HAT ARE TO BE PRESERVED WITHIN THE LIQUID PRODUCTS, PETROLEUM PRODUCTS, AND OTHER MATERIALS THAT HAVE THE POTENTIAL TO POSE A W
<br /> CONSTRUCTION AREA AS SHOWN ON THE DRAWINGS. THREAT TO HUMAN HEALTH OR THE ENVIRONMENT. ON-SITE FUELING TANKS SHALL INCLUDE SECONDARY pQo� Q z J
<br /> 2. SILT FENCE, GEOTEXTILE ENCASED BARRIERS, CONSTRUCTION FENCE, ORANGE PLASI1C CONTAINMENT. � o - a a R=25' MIN. 12° MIN. � Q
<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 , � � � � 0 � Q
<br /> THE CONTRACTOR'S OPTION. SPILL PREVEN110N AND CONTROL MEASURES. CONTAMINATED SURFACES SHALL BE CLEANED IMMEDIATELY SEDIMENT AND DEBRIS � � z � >
<br /> FOLLOWING ANY SPILL INCIDENT. 'a ° 4 -8 QUARRY SPALLS �.z. � � �„� �
<br /> 3. THE DUFF IAYER, NATIVE TOPSOIL, AND NATURAL VEGETATION SHALL BE RETAINED �N OVERFLOW BYPASS PLACE GEOTEXTILE UNDER SPALLS `�' �
<br /> AN UNDISTURBED STATE TO THE MAXIMUM DEGREE PRACTICABLE. 4. WHEEL WASH OR TIRE BATH WASTEWATER SHALL BE DISCHARGED TO A SEPARATE ON-SITE TREATMENT • ' o �.y ��a �� W
<br /> SYSTEM OR TO THE SANITARY SEWER WITH LOCAL SEWER DISTRICT APPROVAL. GEOTEXTiLE SHALL MEET THE FO�L0IMNG STANDARDS: �J�, ��,5 ��. � � �-
<br /> 5. APPLICATION OF FERTILIZERS AND PESTICIDES, SHALL BE CONDUCTED IN A MANNER AND AT APPLICATION ';,;_�;�,.,,,�,,�;;;; ' ��'S�� W � �
<br /> SUGGESTED BMPs/BMPs TO BE USED: , 1 � • :`�;';'Ty,; v _ GRAB TENSILE STRENGTH (ASTM D-4751) = 200 PSI MIN c���, z W
<br /> BMP C103: HIGH VISIBILITY PLASTIC FENCE RATES THAT WILL NOT RESULT IN LOSS OF CHEMICAL TO STORMWATER RUNOFF. MANUFACTURERS LABEL •, p ;;;.;,:���;;� . D GRAB TENSiLE ELONGATION ASTM D-4632) = 309b MIN 4. O � O �
<br /> '`���'�` � ) = 400 PSI MIN
<br /> REQUIREMENTS FOR APPLICATION RATES AND PROCEDURES SHALL BE FOLLOWED. �`;��';�:;;rr BELOW INLET GRATE DEVICE MULLEN BURST STRENGTH ASTM D-3786-80a
<br /> ELEMENT �2: ESTABLISH CONSTRUCTION ACCESS 6. BMPs SHALL BE USED TO PREVENT OR TREAT CONTAMINATION OF STORMWATER RUNOFF BY pH MODIFYING ' b b � AOS (ASTM D-4751) = 20-45 (U.S. STD SIEVE SIZE) Z Q � j
<br /> 1. CONSTRUCTION VEHICLE ACCESS AND EXIT SHALL BE LIMITED TQ ONE R�UTE. REFER SOURCES. THESE SOURCES INCLUDE, BUT ARE NOT LIMITED T0: BULK CEMENT, CEMENT KILN DUST, FLY ASH, � � � O W
<br /> T O S W P P P L A N O F T H E S E P L A N S F O R T H E C O N S T R U C T I O N E N T R A N C E L O C A T I O N. A L L NEW CONCRETE WASHING AND CURING WATERS, WASTE STREAMS GENERATED FROM CONCRETE GRINDING AND F I L T E R E D D E T A I L - S T A B I L I Z E D C O N S T R U C T I O N E N T R A N C E
<br /> SAWING, EXPOSED AGGREGATE PROCESSES, AND CONCRETE PUMPING AND MIXER WASHOUT WATERS. � (�
<br /> ACCESS/EXIT POINTS SHALL BE STABILIZED WITH QUARRY SPALLS, CRUSHED ROCK OR WATER �
<br /> OTHER EQUIVALENT BMP, TO MINIMIZE THE TRACKING OF SEDIMENT ONTO PUBLIC ROADS. PERMITTEES SHALL ADJUST THE pH OF STORMWATER IF NECESSARY TO PREVENT VIOLATIONS OF WATER REF: C.O.E. STD DETAIL 201
<br /> 2. IF THE STABILIZED CONSTRUCTION ENTRANCE IS NOT EFFECTIVE IN PREVENTING QUALITY STANDARDS. NO SCALE � W
<br /> SEDIMENT FROM BEING TRACKED ONTO PUBL{C ROADS, WHEEI. WASH OR TIRE BATHS 7• PERMITTEES SHALL OBTAIN WRITTEN APPROVAL FROM ECOLOGY PRIOR TO USING CHEMICAL TREATMENT, � I
<br /> SHALL BE LOCATED ON SITE. OTHER THAN CARBON DIOXIDE OR DRY ICE TO ADJUST pH. r����
<br /> 1..`
<br /> 3. IF SEDIMENT IS TRACKED OFF SITE, PUBLIC OR PRIVATE ROADS SHALL BE CLEANED SUGGESTED BMPs BMPs TO BE USED: �
<br /> THOROUGHLY AT THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER. �
<br /> SEDIMENT SHALL BE REMOVED FROM ROADS BY SHOVELING OR PICKUP SWEEPiNG AND BMP C151: CONCRETE HANDLING o � p �
<br /> SHALL BE TRANSPORTED TO A CONTROLLED SEDIMENT DISPOSAL AREA. BMP C152: SAWCUTTING AND SURFACE POLLUTION PREVENTION
<br /> 4. STREET WASHING IS ALLOWED ONLY AFTER SEDIMENT IS REMOVED AS DESCRIBED BMP C153: MATERIAL DELIVERY, STORAGE AND CONTAINMENT • •
<br /> ABOVE. STREET WASH WASTEWATER SHALL BE CONTROLLED BY PUMPING BACK ON SITE ' ' ' '
<br /> OR OTHERWISE BE PREVENTED FROM DISCHARGING INTO SYSTEMS TRIBUTARY TO WATERS � � � �
<br /> OF THE STATE. ELEMENT �10: CONTROL DEWATER►NG ' '
<br /> 0 � P � �
<br /> 1. FOUNDATION, VAULT, AND TRENCH DE-WATERING WATER, WHICH HAVE SIMILAR CHARACTERISTICS TO ' . D ' - D ' • D '
<br /> SUGGESTED BMPs/BMPs TO BE USED: STORMWATER RUNOFF AT THE SITE, SHALL BE DISCHARGED INTO A CONTROLLED CONVEYANCE SYSTEM , o . � . � , o
<br /> BMP C105: STABIL�ZED CONSTRUCTION ACCESS PRIOR TO DISCHARGE TO A SEDIMENT TRAP OR SEDIMENT POND. _._._.._. _.__ _
<br /> 2. C�EAN NON-TURBID DE-WATERING WATER SUCH AS WELL-POINT GROUND WATER CAN BE DISCHARGED
<br /> BMP C140: DUST CONTROL TO SYSTEMS TRIBUTARY T0, OR DIRECTLY�INTO SURf ACE WATERS OF THE STATE, �AS SPECIFIED IN ���� ������°.���
<br /> ELEMENT 8, PROVIDED THE DE-WATERING FLOW DOES NOT CAUSE EROSION OR FLOODING OF RECEIVING SECTION VIEW i .
<br /> F�,EMENT �3: CONTROL FLOW RATES #
<br /> 1. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE WATERS. CLEAN DE-WATERING WATER SHOULD NOT BE ROUTED THROUGH STORMWATER SEDIMENT PONDS. � Zb/ �;; , «��`
<br /> PUBLIC SERVICES ,-
<br /> PROTECTED FROM EROSION DUE TO INCREASES IN THE VELOCITY AND PEAK VOLUMETRIC 3. OTHER DE-WATERING DISPOSAL OPTIONS MAY INCLUDE: RETRIEVAL SYSTEM a �..�d.,�`;,� � s�j1j
<br /> o INFILTRATION. DRAINAGE GRATE TYp 1, � `� °
<br /> FLOW RATE OF STORMWATER RUNOFF FROM THE PROJECT SITE. ) � ) '� � ..� �y�
<br /> -RECTANGULAR GRATE SHOWN ���ncE - - �� �
<br /> b) TRANSPORT OFF SITE IN A VEHICLE, SUCH AS A VACUUM FLUSH TRUCK, FOR LEGAL DISPOSAL W ��>�.�szan �„ "�',,'' �
<br /> SUGGESTED BMPs/BMPs TO BE USED: A MANNER THAT DOES NOT POLLUTE STATE WATERS.
<br /> �r--- PUBC.It'4,i ri'KS� V «-'. �
<br /> WATER 17E,�=�'^Ta f�IVT ' "�. �. �
<br /> NOT APPLICABLE c) ECOLOGY APPROVED ON-SITE CHEMICAL TREATMENT OR OTHER SUITABLE TREATMENT TECHNOLOGIES. � � �` � .e
<br /> d) SANITARY SEWER DISCHARGE WITH LOCAL SEINER DISTRICT APPROVAL, IF THERE IS NO OTHER OPTION. p � � N��;: - • � � o
<br /> ELEMENT 4: INSTALL SEDIMENT CONTRO S -�' -��' ���„�r� �'�rs�h` ���"� � '�' � `
<br /> � �- e) USE OF A SEDIMENTATION BAG (DIRTBAG OR APPROVED EQUAL) WITH OUTFALL TO A DITCH OR SWALE -� "��� -�- � aF t �R T8 STIIRTING �•� �y
<br /> 1. THE DUFF LAYER, NATIVE SOIL, AND NATURAL VEGETATION SHALL BE RETAINED IN AN FOR SMALL VOLUMES OF LOCALIZED DE-WATERING. = u�r��n on sr�as ��„ ,,,,�, �
<br /> �� %^.:�'ROVAt FOR 7�'IS � �.aQ
<br /> UNDISTURBED STATE TO THE MAXIMUM EXTENT PRACTICABLE. 4. HIGHLY TURBID CONTAMINATED DEWATERING WATER FROM CONSTRUCTION EQUIPMENT OPERATION, = is coHorrta�aa� a�� �''
<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 � "�' � �A����os �.'+n
<br /> GRADING. THESE BMPs SHALL BE FUNCTIONAL BEFORE OTHER LAND DISTURBING SEPARATELY FROM STORMWATER. I '�tEs��j�""`��
<br /> Ca 611J�ER �GRHIT FOR COPtSTRUC7yON H11S
<br /> ACTIVITIES TAKE PLACE.
<br /> L�,_w.. �gEEN ISSUEO.
<br /> 3. PRIOR TO LEAVING THE CONSTRUCTION SITE, STORMWATER RUNOFF FROM DISTURBED
<br /> AREAS SHALL PASS THROUGH AN APPROPRIATE SEDIMENT REMOVAL BMP. RUNOFF FROM ELEMENT #11: MAINTAIN BMPs OVERFLOW BYPASS � � •
<br /> FULL STABILIZED AREAS MAY BE DISCHARGED WITHOUT A SEDIMENT REMOVAL BMP, BUT 1. INSPECT EROSION CONTROL DEVICES ON A WEEKLY BASIS AND AFTER EACH RUNOFF EVENT. MAKE BELOW INLET GRATE DEVICE (TYP)
<br /> MUST MEET THE FLOW CONTROL PERFORMANCE STANDARD OF ELEMENT #3. NECESSARY REPAIRS AND MAINTENANCE TO ENSURE CONTINUED PERFORMANCE OF EROSION AND SEDIMENT
<br /> CONTROLS.
<br /> SUGGESTED BMPs/BMPs TO BE USED:
<br /> BMP C233: TEMPORARY SILT FENCE 2. WHEN SEDIMENT ACCUMULATION IN SEDIMENTATION STRUCTURES, OTHER THAN INLET PROTECTION DEVICES,
<br /> HAS REACHED A POINT ONE-THIRD DEPTH OF SEDIMENT STRUCTURE OR DEVICE, OR IF FLOW THROUGH THE ISOMETRIC VIEW
<br /> ELEMENT �5: STABILIZE SOILS DEVICE IS REDUCED BY MORE THAN ONE-THIRD CAPACITY, THE CONTRACTOR SHALL REMOVE AND REPLACE DETAI L - STORM DRAI N I N LET PROTECTION
<br /> 1. EXPOSED AND UNWORKED SOILS SHALL BE STABILIZED BY APPLICATION OF EFFECTIVE DISPOSABLE DEVICES OR CLEAN AND DISPOSE OF SEDIMENT.
<br /> BMPs THAT PROTECT THE SOIL FROM EROSIVE FORCES OF RAINDROPS. FLOWING WATER,
<br /> AND WIND. 3. TEMPORARY EROSION AND SEDIMENT CONTROL BMPs SHALL BE REMOVED WITHIN 30 DAYS AFTER fINAL REF: C.O.E. STD. DWG 210
<br /> 2. TO PREVENT EROSION, NO SOILS SHALL REMAIN EXPOSED AND UNWORKED FOR MORE SITE STABILIZATION IS ACHIEVED QR AFTER THE TEMPORARY BMPs ARE NO LONGER NEEDED. TRAPPED NO SCALE
<br /> THAN THE TIME PERIODS SET FORTH BELOW: SEDIMENT SHALL BE REMOVED OR STABILIZED ON SITE. DISTURBED SOILS SHALL BE PERMANENTLY
<br /> DURING THE WET SEASON (OCTOBER 1 - APRIL 30): 2 DAYS STABILIZED. EMEN �13: PROTECT LOW IMPACT DEVELOPMENT BMPs
<br /> DURING THE DRY SEASON (MAY 1 - SEPT. 30): 3 DAYS 1. AREAS ON-SITE WHICH UTILIZE STORMWATEER MANAGEMENT BMPs SHALL BE PROTECTED FROM SILTATION
<br /> THIS STABILIZATION REQUIREMENT APPLIES TO ALL SOILS ON SITE, WHETHER AT FINAL SUGGESTED BMPs/BMPs TO BE USED: o
<br /> GRADE OR NOT. THESE TIMES MAY BE ADJUSTED BY THE LOCAL PERMITTING AUTHORITY BMP C150: MATERIAL ON HAND AND COMPACTION DURING THE CONSTRUCTION PROCESS. Z N
<br /> IF IT CAN BE SHOWN THAT SITE CONDITIONS OR THE AVERAGE TIME BETWEEN STORM a) DO NOT AL�OW MUDDY CONSTRUCTION EQUIPMENT ON BASE MATERIAL OR PAVEMENT. DO NOT ALLOW - �y �
<br /> EVENTS JUSTIFIES A DIFFERENT STANDARD. SEDIMENT-LADEN RUNOFF ONTO PERMEABLE PAVEMENTS OR BASE MATERIALS. '= �-
<br /> 3. SOILS SHALL BE STABILiZED AT THE END OF THE SHIFT BEFORE A HOLIDAY OR ELEMENT �12: MANAGE THE PROJECT b) PAVEMENT FOULED WITH SEDIMENTS OR NO LONGER PASSING AN INITIAL INFILTRATION TEST MUST BE � W � � �
<br /> WEEK E N D I F N E E D E D B A S E D O N T H E W E A T H E R F O R E C A S T. 1. PHASING OF CONSTRUCTION: CLEAN ED U SI N G P R O C E DU R E S IN A CCORDA NC E WIT H T H E C U R R E N T D O E M A N U A L O R M A N U F A C T U R E R S Z � rn �
<br /> 4. SOIL STOCKPILES SHALL BE STABILIZED FROM EROSION, PROTECTED WITH SEDIMENT a) DEVELOPMENT PROJECTS SHALL BE PHASED WFiERE FEASIBLE IN ORDER TO PREVENT, TO THE MAXIMUM PROCEDURES. wiRe F�sRi `� a � ` o °�
<br /> TRAPPING MEASURES, AND WHERE POSSIBLE, BE LOCATED AWAY FROM STORM DRAIN EXTENT PRACTICABLE, THE TRANSPORT OF SE DIM ENT FROM TH E D EV E L O P M E N T SI T E D U R I N G C O N S T R U C T I O N. c) KEEP ALL HEAVY EQUIPMENT OFF EXISTING SO1LS UNDER LID FACILITIES THAT HAVE BEEN EXCAVATED TO � � a � � `n
<br /> NEWL,Y GRADEp pR � N
<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. oisTUReEo sioE W (� � � �
<br /> 5. APPLICABLE BMPs INCLUDE, BUT ARE NOT LIMITED T0: TEMPORARY AND PERMANENT OF THE CLEARING ACTIVITIES FOR ANY PHASE. s�oP 0 > � v
<br /> SEEDING, SODDING, MULCHING, PLASTIC COVERING, EROSION CONTROL FABRICS AND b) CI.EARING AND GRADING ACTIVITIES FOR DEVELOPMENTS SHALL BE PERMITTED ONLY IF CONDUCTED SUGGESTED BMPs/BMPs TO BE USED: � O v � �
<br /> FIITER FABRIC � C
<br /> M A T T I N G, S O I L A P P L I C A T I O N O F P O L Y A C R Y L A M I D E (P A M), T H E E A R L Y A P P L I C A T I O N O F B M P C 1 0 3: H I G H V I S I B I L I T Y F E N C E �T E� � � �L � c
<br /> P U R S U A N T T O A N A P P R O V E D S I T E D E V E L O P M E N T P L A N (e.g., S U B D I V I S I O N A P P R O V A L) T H A T E S T A B L i S H E S � �
<br /> GRAVEL BASE ON AREAS TO BE PAVED AND DUST CONTROL SELECT SOIL STABILIZATION BMP C233: SILT FENCE � Q N � � �
<br /> M E A S U R E S S H A L L B E A P P R O P R I A T E F O R T H E T I M E O F Y E A R, S I T E C O N D I T I O N S, E S 1 1 M A T E D APPROVED AREAS OF CLEARING, GRADING, CUTTING AND FILLING. WHEN ESTABLISHING THESE PERMITTED � � a
<br /> CLEARING AND GRADING AREAS, CONSIDERATION SHOULD BE GIVEN TO MINIMIZING REMOVAL OF EXISTING � � Q Q >
<br /> DURATION OF USE, AND THE POTENTIAL WATER QUALITY IMPAC?S. O � w
<br /> 6. REMOVE ALL TESC MEASURES AS SOON AS PRACTICAL AFTER ESTABLISHMENT OF �EES AND MINIMIZING DISTURBANCE AND GOMPACTION OF NATIVE SOILS EXCEPT AS NEEDED FOR BUILDING
<br /> PURPOSES. THESE PERMITTED CLEARING AND GRADING AREAS AND ANY OTHER AREAS REQUIRED TO S.W.P.P.P. GENERAL NOTES i N
<br /> UNIFORM GRASS GROWTH OR INSTALLATION OF OTHER PERMANENT STABILIZATION PRESERVE CRITICAL OR SENSITIVE AREAS, BUFFERS, NATIVE GROWTH PROTECTION EASEMENTS, OR TREE Q Q �
<br /> MEASURES. REPAIR ANY DAMAGE TO STABIIIZED 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 BACKFILLAN❑ -f'"` � ,�`'��"�
<br /> STRUCTURAL FILL SHALL CONSIST OF PROPERLY MOISTURE CONDITIONED WITHIN THE OUTER 10 FEET (HORIZONTAL DISTANCE) FROM FINISHED GRADE coMpRcrEo � �
<br /> 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 FILL SHALL BE REMOVED TO A DISTANCE
<br /> BMP C120: TEMPORARY AND PERMANENT SEEDING FROM OCTOBER 1 THROUGH APRIL 30, CLEARING, GRADING, AND OTHER SOIL DISTURBING ACTIVITIES SHALL SUCH A5 PIT RUN SAND AND GRAVEL THAT IS FREE OF DEBRIS, ORGANIC OF AT LEAST 10 FEET FROM THE SLOPE FACE AND BE REPLACED WITH ' �
<br /> BMP C140: DUST CONTROL CONTAMINANTS, OR ROCK FRAGMENTS LARGER THAN 6 INCHES. STRUCTURAL FILL COMPACTED TO AT LEAST 90 PERCENT OF THE MDD PER N
<br /> m ONLY BE PERMITTED IF SHOWN TO THE SATISFACTION OF THE LOCAL PERMITTING AUTHORITY THAT THE
<br /> � TRANSPORT OF SEDIMENT FROM THE CONSTRUCTION SITE TO RECEIVING WATERS WILL BE PREVENTED THROUGH COMPACTION SHALL BE ACHIEVED BY MECHANICAL MEANS AND A ASTM D 1557. STRUCTURA� FILL SHALL BE PLACED IN APPROXIMATELY 6 � REVISIONS: APPD.
<br /> �: 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 I
<br /> � 1. DESIGN, CONSTRUCT, AND PHASE CUT AND FILL SLOPES IN A MANNER THAT WILL A COMBINATION OF THE FOLLOWING: VIBRATORY ROLLER. ALL FILL SHALL BE COMPACTED TO THE REQUIRED OVERBUILT 8Y AT LEAST 2 FEET AND THEN CUT BACK TO DESIGN GRADE
<br /> � MINIMIZE EROSION. APPLICABLE PRACTICES INCLUDE, BUT ARE NOT LIMITED T0, REDUCING a) SITE CONDITIONS INCLUDING EXISTING VEGETATIVE COVERAGE, SLOPE, SOIL TYPE, AND PROXIMITY TO �f
<br /> Y PERCENTAGE OF THE MAXIMUM DRY DENSITY (MDD) PER AMERICAN SOCIETY PRIOR TO PLACING LANDSCAPING MATERIALS. THE BOTTOM OF THE FILL
<br /> w 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 SECTION A-A
<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 FILTERFABRICMATERIAL
<br /> � � ALL FILL AND BACKFILL SHALL BE PLACED IN THIN LIFTS (APPROXIMATELY 6 MIRAFI�44X OR
<br /> SLOPES AND DISTURBED AREAS WITH INTERCEPTOR DIKES, PIPES, AND OR SWALES. HORIZONTALLY FOR EVERY 2 FEET VERIICAL. THE SLOPES SHALL BE A
<br /> OFF-SITE STORMWATER SHOULD BE MANAGED SEPARATELY FROM STORMWATER BASED ON THE INFORMATION PROVIDED AND LOCAL WEATHER CONDITIONS, THE PROJECT LEAD MAY EXPAND TRACK WALKED PRIOR TO PLACING LANDSCAPE MATERIALS AND EQUIVALENT -� WIRE RINGS z•�Xa"x14 GAUGE
<br /> b INCHES SO THAT UNIFORM COMPACTION CAN BE ACHIEVED THROUGHOUT WELDED 4VIRE FABRIC •
<br /> � GENERATED ON THE SITE. OR RESTRICT THE SEASONAL LIMITATION ON SITE DISTURBANCE. THE PROJECT LEAD SHALL TAKE � HYDROSEEDING. (TYPICAL) p�EQUAL
<br /> � ENFORCEMENT ACTION - SUCH AS NOTICE OF VIOLATION ADMINISTRATIVE ORDER PENALTY OR STOP-WORK �E ENTIRE LIFT THICKNESS. FILL PLACED WITHIN 24 INCHES OF ROUGH
<br /> �- 3. DO NOT CLEAR AND GRUB SLOPES GREATER THAN 4 (HORIZONTAL):1 (VERTtCAL) ' ' ' GRADE SHALt BE COMPACTED TO AT LEAST 95 PERCENT MDD PER ASTM D
<br /> w ORDER UNDER THE FOLLOWING CIRCUMSTANCES: 1557. FIL� AND BACKFILL MORE THAN 24 INCHES BELOW ROUGH GRADE NOTE 5: MONITORING AND TESTING
<br /> w UNLESS FURTHER WORK RESULTING IN STABILIZATION OF THE SLOPES TO BE CLEARED AND
<br /> _ - IF, DURING THE COURSE OF ANY CONSTRUCTION ACTIVITY OR SOIL DISTURBANCE DURING THE SEASONAL �
<br /> � GRUBBED IS SCHEDULED. LIMITATION PERIOD, SEDIMENT LEAVES THE CONSTRUCTION SITE CAUSING A VIOLATION OF THE SURFACE 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 SHA�L BE PLACED ON THE UPHILL SIDE OF TRENCHES, IF CUTS ARE REQUIRED ACROSS TH SITE TO ACHIEVE GRADE, THEN THE OBSERVE EARTHWORK ACTIVITfES AND TO TEST STRUCTURAL FILL PLACED
<br /> w CONSISTENT WITH SAFETY AND SPACE CONSIDERATIONS. WATER QUALITY STANDARD; OR 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 PROOF-ROLLED, AND THEN THE UPPER 2 FEET SHALL BE REPLACED WITH TESTING BY THE OWNER'S REPRESENTATIVES AS NEEDED. " "
<br /> Q 5. CHECK DAMS SHALL BE PLACED AT REGULAR INTERVALS WITHIN CONSTRUCTED
<br /> � APPROVED PLAN ARE NOT MAINTAINED. STRUCTURAL FILL COMPACTED TO AT LEAST 95 PERCENT OF THE MAXIMUM DATE: DECEMBER, 2017
<br /> o CHANNELS TNAT ARE CUT DOWN A SLOPE.
<br /> o THE FOLLOWING ACTIVITIES ARE EXEMPT FROM THE SEASONAL CLEARING AND GRADING LIMITATIONS: DRY DENSITY. NOTE 6: CESCL NOTE " DESIGN• BJN
<br /> � 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 '
<br /> o BMP C120: TEMPORARY AND PERMANENT SEEDING - ROUIINE 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 MONfTORING, RECORDING � � DRA�PN: CD
<br /> o SOIL OR RESULT IN THE REMOVAL OF THE VEGETATIVE COVER TO SOIL; RND TIRE-MOUNTED EQUtPMENT OR A LOADED DUMP TRUCK. ALL SOFT AREAS AND REPORTING. CHECKED: JNS
<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
<br /> Y 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: REVISION
<br /> � 200' DOWNSTREAM OF THE PROJECT SITE SHALL BE PROTECTED WITH CATCH BASIN BE TWOROUGHLY COMPACTED TO A FIRM AND UNYIELDING CONDITION. ALL OVERFLOWS AND OTHER DISCHARGE OF CONSTRUCTION � ( I I I � I I NUMBER: ,
<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 I I I A I I I I SCALE: 1�=20'
<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 REGARDEO SLOPES SHALL BE NO STEEPER THAN 2H:1V. THE OUTER 10 NOTE 8: STAB{LIZATION NOTE: �
<br /> �i� 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 I ' STEELPOSTS
<br /> 0 2. APPROACH ROADS SHALL BE KEPT CLEAN. SEDIMENT AND STREET WASH WATER SLOPES SHALL BE REMOVED AND REPLACED WITH STRUCTURAL FILL EXPOSED SOIL WITHIN THE PARKING LOT. TO PREVENT EROSION, NO LJ s�o.c. � U u
<br /> �.� SHALL NOT BE ALLOWED TO ENTER STORM DRAINS WITHOUT PRIOR AND ADEQUATE 4. INSPECTION AND MONITORING: COMPACTED TQ AT LEAST 90 PERCENT OF THE MDD PER ASTM D 1557. SOILS SHALL REMAIN EXPOSED AND UNWORKED FOR MORE THAN 2 ELEVATION PROJECT NUMBER:
<br /> c�c� TREATMENT. STRUCTURAL FILL SHALL BE PLACED IN APPROXIMATELY 6 iNCH LOOSE DAYS DURING THE WET SEASON AND 7 DAYS DURING THE DRY ,,_ 5 �1 Za�� REYK-00O4
<br /> �,�, 3. INLET PROTECTION DEVICES SHOULD BE CLEANED OR REMOVED AND REPLACED WFiEN 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 "�, CITY C)F EVERETT TEMP�RARY SILT FENCE � �
<br /> m C° SEDIMENT HAS FILLED ONE-THIRD OF THE AVAILABLE STORAGE (OR WHEN FILLED WITH PRACTICES OF EROSION AND SEDIMENT CONTROL AT LEAST ONCE EVERY CA�ENDAR 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. �--._� PUBI.I� WORKS Date:
<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 ��I��� DEPARTMENT Z� 4 DRAWING FILE:
<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 oE sta ow : Ec-IM-320-REYK0004.dwg
<br /> ¢a BMPs TO BE USED: STORMWATER, AND GRADE. THE STRUCTURAL FILL MATERIALS SHALL BE BENCHED INTO THE
<br /> �'`� BMP C220: STORM DRAIN INLET PROTECTION (WSDOT STD P�AN I-40.20-00) b) ASSESS THE EFFECTIVENESS OF EROSION AND SEDIMENT CONTROL MEASURES USED TO CONTROL THE TEMPORARY CUT SLQPE AT L.EAST 4 FEET HORIZONTALLY FOR EVERY 2
<br /> �� BMP C233: SILT FENCE QUALITY OF STORMWATER DISCHARGES. FEET VERTICAL. THE SLOPES SHALL BE TRACK WALKED PRiOR TO PLACING CALL SHEET N0.
<br /> r��- LANDSCAPE MATERIALS AND HYDROSEEDING.
<br /> �� IF INSPECTION AND/OR WATER MONITORING OF SITE RUNOFF REVEALS THAT THE BMPs IDENTIFIED IN THE 2 BUSINESS DAYS
<br /> �; CONSTRUCTION SWPPP ARE INADEQUATE, THE CONTRACTOR SHALI. IMMEDIATELY ADD BMPs TO THE SWPPP AS BEFORE YOU DIG
<br /> �� NECESSARY.
<br /> FOR UTILITY LpCATE
<br /> °' 811
<br /> �o SUGGESTED BMPs/BMPs TO BE USED:
<br /> � a� BMP C150: MATERIAL ON HAND OF 9
<br /> �-�°� BMP C162: SCHEDULING
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