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HomeMy WebLinkAboutMPDES SWPPP Admin 3.18_F2/23/2019 1 STORMWATER POLLUTION PREVENTION PLAN (SWPPP) SECTION 3 SWPPP OBJECTIVES IMPLEMENTED IN ACCORDANCE WITH GOOD ENGINEERING SELECTION AND DESIGN, HYDROLOGIC PRINCIPLES, AND POLLUTION CONTROL PRACTICES TO MINIMIZE AND CONTROL POTENTIAL POLLUTANTS IN STORM WATER ASSOCIATED WITH CONSTRUCTION ACTIVITY. •PROVIDE A SITE DESCRIPTION OF THE NATURE OF THE CONSTRUCTION ACTIVITY THAT INCLUDES IDENTIFICATION AND DETAILS OF THE MAJOR CONSTRUCTION ACTIVITIES AND PROJECT AREA CHARACTERISTICS; •IDENTIFY AND DESCRIBE ALL POTENTIAL POLLUTANT SOURCES WHICH MAY AFFECT THE QUALITY OF STORMWATER DISCHARGES ASSOCIATED WITH THE CONSTRUCTION ACTIVITY; •IDENTIFY AND DESCRIBE THE BMPS TO BE USED TO REDUCE POTENTIAL POLLUTANTS IN STORM WATER DISCHARGES ASSOCIATED WITH THE CONSTRUCTION ACTIVITY AND TO ENSURE COMPLIANCE WITH THE EFFLUENT LIMITATIONS IN THIS PERMIT; •IDENTIFY AND DESCRIBE THE MEASURES WHICH WILL BE USED TO ACHIEVE FINAL STABILIZATION; AND •IDENTIFY AND CLEARLY DESCRIBE THE INSPECTION AND MAINTENANCE PROCEDURES IMPLEMENTED AT THE SITE TO MAINTAIN ALL EROSION AND SEDIMENT CONTROL AND OTHER BMPS IDENTIFIED IN THE SWPPP, IN GOOD AND EFFECTIVE OPERATING CONDITION. SWPPP IS A LIVING DOCUMENT Making changes and amendments to the SWPPP is one of the most important keys to staying in compliance. ADAPTIVE MANAGEMENT When monitoring indicates a problem, take appropriate action SWPPP IMPLEMENTATION MUST INITIATE AT THE START OF GROUND DISTURBANCE ASSOCIATED WITH THE CONSTRUCTION ACTIVITY, AND CONTINUE UNTIL FINAL STABILIZATION OF ALL CONSTRUCTION ACTIVITY-RELATED GROUND DISTURBANCE IS ACHIEVED AND PERMIT COVERAGE HAS BEEN TERMINATED. THE SWPPP MUST BE MAINTAINED TO REFLECT UP-TO-DATE SITE CONDITIONS THROUGH DOCUMENTED REVISIONS AND UPDATES. INSPECTION REPORTS, LOGS, AND THE SITE MAP MAY SUPPLEMENT THE SWPPP TO REFLECT THE MOST UP-TO-DATE SITE CONDITIONS. SWPPP PREPARER IDENTIFY IN THE NOI FORM AND THE SWPPP. A SWPPP PREPARER IS AN INDIVIDUAL OR POSITION TITLE WHO IS RESPONSIBLE FOR PLANNING AND DEVELOPMENT OF THE SWPPP PRIOR TO SUBMISSION OF THE NOI-SWC.THE SWPPP PREPARER MUST DEVELOP AND DOCUMENT ALL ASPECTS OF THE SWPPP, INITIATING WITH THE START OF CONSTRUCTION ACTIVITIES, AND LASTING UNTIL FINAL STABILIZATION IS ACHIEVED AND THE PERMIT AUTHORIZATION IS TERMINATED. VALID CERTIFICATION DEMONSTRATING THE MINIMUM REQUIREMENTS FOR THE SWPPP PREPARER MUST BE MAINTAINED WITH THE SWPPP, AND MUST INCLUDE THEFOLLOWING: •NAME(S), TITLE(S), PHONE NUMBER, AND EMAILS OF SWPPP PREPARERS; AND •DATE AND NAME OF PROVIDER OF COURSE(S). Effective January 1, 2019 Valid for 3 yrs SWPPP ADMINISTRATOR SWPPP ADMINISTRATOR(S) IS AN INDIVIDUAL OR POSITION TITLE WHO IS RESPONSIBLE FOR DEVELOPING, IMPLEMENTING, MAINTAINING, REVISING, AND UPDATING THE SWPPP. THE SWPPP ADMINISTRATOR(S) MUST ADDRESS ALL ASPECTS OF THE SWPPP, INITIATING WITH THE START OF CONSTRUCTION ACTIVITIES, AND LASTING UNTIL FINAL STABILIZATION IS ACHIEVED AND THE PERMIT AUTHORIZATION IS TERMINATED. •MUST HAVE KNOWLEDGE OF THE PRINCIPLES AND PRACTICES OF EROSION AND SEDIMENT CONTROLS AND POLLUTION PREVENTION PRACTICES AND POSSESS THE SKILLS NECESSARY TO ASSESS SITE CONDITIONS AND DETERMINE THE EFFECTIVENESS OF SELECTED BMPS. •MUST MEET THE DULY AUTHORIZED REPRESENTATIVE REQUIREMENTS Effective NOW 1 2 3 4 5 6 2/23/2019 2 SWPPP ADMIN CERTIFICATION MINIMUM REQUIREMENTS AND VALID CERTIFICATION MUST BE COMPLETED BEFORE THE START OF EARTH-DISTURBING ACTIVITIES OR POTENTIAL POLLUTANT-GENERATINGACTIVITIES, WHICHEVER OCCURS FIRST. FOR NEW EMPLOYEES HIRED AFTER THIS TIME, THE MINIMUM REQUIREMENTS AND VALID CERTIFICATION MUST BE COMPLETED BEFORE ASSUMING SWPPP ADMINISTRATOR RESPONSIBILITIES. VALIDATION OF CERTIFICATION WILL BE DETERMINEDDURING AN INSPECTION. VALID CERTIFICATION DEMONSTRATING THE MINIMUM REQUIREMENTS FOR THE SWPPP ADMINISTRATOR(S) MUST BE MAINTAINED WITH THE SWPPP, AND MUST INCLUDE THE FOLLOWING: •NAME(S), TITLE(S), PHONE NUMBER, AND EMAILS OF SWPPP ADMINISTRATOR(S); AND •DATE AND NAME OF PROVIDER OF COURSE(S). Valid for 3 yrs MINIMUM REQUIREMENTS FOR SWPPP ADMIN OR PREPARERS •MPDES PERMITTING REQUIREMENTS TO INCLUDE, BUT NOT LIMITED TO, APPLICABILITY, APPLICATION PROCEDURES, SWPPP ELEMENTS, STANDARD CONDITIONS, AND TERMINATION CONDITIONS; •LOCAL PERMITTING REQUIREMENTS; •SAGE GROUSE REQUIREMENTS BASED ON LOCATION OF THE PROJECT; •KNOWLEDGE OF THE PRINCIPLES AND PRACTICES OF EROSION AND SEDIMENT CONTROLS AND POLLUTION PREVENTION PRACTICES, INCLUDING THE MINIMUM CRITERIA FOR BMPS DEFINED IN PART 2.1. OF THIS PERMIT; •CONSTRUCTION SITE ASSESSMENT AND PLANNING SKILLS TO INCLUDE KNOWLEDGE AND IDENTIFICATION OF MAJOR CONSTRUCTION ACTIVITIES AND THE PHASES OF CONSTRUCTION ACTIVITIES AND ALL SUPPORT ACTIVITIES, AND THE POTENTIAL POLLUTANTS GENERATED BASED ON THE SCOPE OF THE PROJECT; •DEVELOPMENT, SELECTION, AND IMPLEMENTATION SKILLS FOR ALL STORM WATER CONTROLS AND BMPS ON THE SITE, INCLUDING FINAL STABILIZATION MEASURES, REQUIRED BY THIS PERMIT BASED ON APPROPRIATE DESIGN, INSTALLATION, FUNCTION, AND LOCATION; AND HOW THEY ARE TO BE MAINTAINED AND/OR REPAIRED ACCORDING TO DEVELOPEDAND/OR MANUFACTURERS PLANS AND SPECIFICATIONS; •DEVELOPMENT, SELECTION, AND IMPLEMENTATION SKILLS FOR POLLUTION PREVENTION CONTROLS AND BMPS REQUIRED BY THIS PERMIT; •DEVELOPMENT AND IMPLEMENTATION SKILLS FOR PROCEDURES AND ASSOCIATED DOCUMENTATION FOR ALL INSPECTIONS, MAINTENANCE, AND REQUIRED RECORDKEEPING TO INCLUDE WHEN AND HOW TO CONDUCT INSPECTIONS, RECORD APPLICABLE FINDINGS, TAKE CORRECTIVE ACTIONS, AND, WHEN APPROPRIATE, REPORT VIOLATIONS AND/OR NONCOMPLIANCE; AND •ABILITY TO DEVELOP AND UPDATE THE SITE MAP(S) REQUIRED BY THIS PERMIT. WHAT GOES INTO A SWPPP •SITE DESCRIPTION •IDENTIFICATION OF POTENTIAL POLLUTANT SOURCES •SELECTION OF BMPS •DEWATERING •MAJOR PHASING OF CONSTRUCTION & BMP PHASING •FINAL STABILIZATION •POST CONSTRUCTION •SITE MAP SITE DESCRIPTION •THE NATURE OF THE CONSTRUCTION ACTIVITY AND WHAT IS BEING CONSTRUCTED; •A DESCRIPTION OF ALL SUPPORT ACTIVITIES AND ASSOCIATED STORM WATER DISCHARGES DEDICATED TO THE CONSTRUCTION ACTIVITY INCLUDING BUT NOT LIMITED TO: MATERIAL BORROW AREAS, MATERIAL FILL AREAS, CONCRETE OR ASPHALT BATCH PLANTS, EQUIPMENT STAGING AREAS, ACCESS ROADS/CORRIDORS, MATERIAL STORAGE AREAS, AND MATERIAL CRUSHING/RECYCLING/PROCESSING AREAS; •THE TOTAL AREA OF THE SITE (IN ACRES), AND THE AREA OF THE SITE (IN ACRES) EXPECTED TO UNDERGO CONSTRUCTION-RELATED DISTURBANCE (INCLUDING ALL CONSTRUCTION-RELATED SUPPORT ACTIVITIES); •A DESCRIPTION OF THE CHARACTER AND ERODIBILITY OF SOIL(S) AND OTHER EARTH MATERIAL TO BE DISTURBED AT THE SITE, INCLUDING CUT/FILL MATERIAL TO BE USED; •STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITY WITH CONSTRUCTION-RELATED DISTURBANCE OF FIVE ACRES OR MORE OF TOTAL LAND AREA: •AN ESTIMATE OF THE RUNOFF COEFFICIENT OF THE SITE, BOTH BEFORE AND AFTER CONSTRUCTION, INCLUDING A DESCRIPTION OF WHAT THIS IS BASED ON; AND •AN ESTIMATE OF THE INCREASE IN IMPERVIOUS AREA AFTER THE CONSTRUCTION ACTIVITY IS COMPLETED; •THE NAMES OF RECEIVING STATE SURFACE WATERS AND A DESCRIPTION OFTHE SIZE (DRAINAGE AREA), TYPE, AND LOCATION OF EACH POINT SOURCE DISCHARGE OR OUTFALL WITH CONNECTIVITY. •PROVIDE A BRIEF DESCRIPTION OF THE EXISTING NATURAL COVER AND VEGETATION AT THE SITE AND AN ESTIMATE OF THE PERCENT DENSITY OF VEGETATIVE GROUND COVER. IDENTIFICATION OF POTENTIAL POLLUTANT SOURCES THE PERMITTEE MUST IDENTIFY ALL POTENTIAL POLLUTANT SOURCES WITHIN LISTS PROVIDED FOR SOILS, MATERIALS, AND ACTIVITIES WITHIN THE SWPPP. IN ADDITION, THE PERMITTEE MUST IDENTIFY AND LIST THE FOLLOWING: •OTHER POTENTIAL POLLUTANT SOURCES FROM SOILS, ACTIVITIES, AND MATERIALS NOT ALREADY IDENTIFIED THE SWPPP; •OTHER NON-STORM WATER DISCHARGES IF PRESENT; AND •ANY ADDITIONAL POTENTIAL POLLUTANT SOURCES. SELECTION OF BMP BMP DESIGN, INSTALLATION, IMPLEMENTATION, AND MAINTENANCE SPECIFICATIONS FOR THE BMPS IDENTIFIED IN THE SWPPP MUST BE MAINTAINED ON-SITE. THESE SOURCES MUST BE KEPT UP TO DATE AND ACCESSIBLE UPON REQUEST. ANY DEPARTURES FROM THE SPECIFICATIONS MUST REFLECT GOOD ENGINEERING PRACTICES AND MUST BE DOCUMENTED IN THE SWPPP OR CORRESPONDING INSPECTION REPORTS. 7 8 9 10 11 12 2/23/2019 3 DEWATERING DISCHARGES OF GROUND WATER, SURFACE WATER, AND/OR ACCUMULATED STORM WATER DUE TO DEWATERING PRACTICES WHICH WILL NOT DISCHARGE TO STATE SURFACE WATERS MUST BE MANAGED BY APPROPRIATE BMPS, AND THESE MUST BE IDENTIFIED IN THESWPPP. THESE DEWATERING PRACTICES AND BMPS MUST BE IDENTIFIED ON THE SITE MAP DISCHARGES OF GROUND WATER, SURFACE WATER, AND/ OR ACCUMULATED STORM WATER DUE TO DEWATERING PRACTICES WHICH WILL DISCHARGE TO STATE SURFACE WATERS ARE NOT AUTHORIZED UNDER THIS PERMIT AND MUST OBTAIN AUTHORIZATION UNDER THE MPDES "GENERAL PERMIT FOR CONSTRUCTION DEWATERING"(CDGP), OR AN INDIVIDUAL PERMIT. THE CDGP APPLIES TO DISCHARGES TO INCLUDE IN-STREAM DEWATERING, SURFACE AREA DEWATERING, AND GROUND WATER DEWATERING (SEE CONSTRUCTION DEWATERING DEFINITION IN PART 5). THESE DEWATERING PRACTICES AND BMPS MUST BE IDENTIFIED IN THE SWPPP, AND IDENTIFIED ON THE SITE MAP REQUIRED UNDER PART 3.10. OF THIS PERMIT. PROJECT PHASING THE SWPPP MUST IDENTIFY THE MAJOR CONSTRUCTION ACTIVITIES, PROVIDE A LIST OF ALL THE CONSTRUCTION RELATED TASKS TO COMPLETE EACH MAJOR CONSTRUCTION ACTIVITY, AND IDENTIFY AN ESTIMATED TIMEFRAME OF INITIATION AND COMPLETION OF EACH MAJOR CONSTRUCTION ACTIVITY. A DISTINCT MAJOR CONSTRUCTION ACTIVITY IS DEFINED AS ANY DISTINCT CONSTRUCTION RELATED DISTURBANCE OR DISTINCT POLLUTANT GENERATING ACTIVITY THAT OCCURS WITHIN THE SCHEDULE OF ACTIVITIES ASSOCIATED WITH THE CONSTRUCTION PROJECT. THE CONSTRUCTION RELATED TASKS OF EACH MAJOR CONSTRUCTION ACTIVITY ARE THE SERIES OF STEPS NECESSARY TO THE COMPLETE THE MAJOR CONSTRUCTION ACTIVITY. FINAL STABILIZATION MUST BE ACHIEVED UNIFORMLY OVER THE ENTIRE DISTURBED AREA, WITHOUT RELATIVELY BARE AREAS BASED ON THE PRE-DISTURBANCE CONDITIONS. IF USING SEED OR PLANTED VEGETATION TO ACHIEVE FINAL STABILIZATION, THE PLANTS MUST BE PERENNIAL. BEFORE SUBMITTING THE NOT FORM TO TERMINATE COVERAGE UNDER THIS PERMIT AND IN ADDITION TO ACHIEVING FINAL STABILIZATION, THE FOLLOWING MUST HAVE ALSO OCCURRED: •REMOVAL OF TEMPORARY STORM WATER CONVEYANCES/CHANNELS AND OTHER TEMPORARY STORMWATER CONTROL MEASURES AND/OR BMPS •REMOVAL OF CONSTRUCTION EQUIPMENT AND VEHICLES, AND •CESSATION OF ANY POTENTIAL POLLUTANT-GENERATING ACTIVITIES DUE TO THE CONSTRUCTION ACTIVITY. POST CONSTRUCTION THE SWPPP MUST CLEARLY DESCRIBE ANY BMPS WHICH ARE TO BE USED TO CONTROL STORM WATER AND POTENTIAL POLLUTANTS IN STORMWATER DISCHARGES THAT WILL OCCUR AFTER CONSTRUCTION OPERATIONS HAVE BEEN COMPLETED AT THE SITE, INCLUDING ANY APPLICABLE LOCAL REQUIREMENTS. IF A TEMPORARY BMP TRANSITIONS INTO A POST-CONSTRUCTION BMP, THESWPPP MUST CLEARLY DESCRIBE THIS TRANSITION AND ANY ASSOCIATED MAINTENANCE. IN ADDITION, FOR POSTCONSTRUCTION STORMWATER MANAGEMENT AT CONSTRUCTED/DEVELOPED SITES, THE DEPARTMENT SUPPORTS THE USE OR'"LOW IMPACT DEVELOPMENT" (LID) AND "GREEN INFRASTRUCTURE" BMPS, WHERE SUCH PRACTICES ARE PRACTICABLE, THAT INFILTRATE, EVAPOTRANSPIRE, OR CAPTURE FOR REUSE THE STORM WATER RUNOFF GENERATED FROM THE MAJORITY OF EXPECTED STORM EVENTS. PROTECT LID INFRASTRUCTURE I WANT TO GET MY NOT! ASTM 1701 13 14 15 16 17 18 2/23/2019 4 SITE MAP •SITE BOUNDARIES TO INCLUDE THE PERIMETER OF COMMON PLANS OF DEVELOPMENT; •LOCATIONS AND TYPES OF ALL DEDICATED CONSTRUCTION ACTIVITY SUPPORT AREAS (INCLUDING OFF-SITE) SUCH AS ACCESS-RELATED WORK, EARTH MATERIAL BORROW AREAS, EQUIPMENT STAGING AREAS, MATERIALS STORAGE AREAS, TEMPORARY CONCRETE OR ASPHALT BATCH PLANTS, AND ANY AREAS USED FOR FILL PLACEMENT; •LOCATIONS WHERE GROUND-DISTURBING ACTIVITIES WILL OCCUR, NOTING ANY BMP PHASING OF MAJOR CONSTRUCTION ACTIVITIES; •PRECONSTRUCTION TOPOGRAPHY OF THE SITE INCLUDING SHOWING STATE SURFACE WATERS WHICH WILL RECEIVE STORMWATER RUNOFF FROM THE SITE. IDENTIFY IF THE RECEIVING STATE SURFACE WATER IS LISTED AS IMPAIRED; •DRAINAGE PATTERN(S) AND FLOW DIRECTIONS (USE ARROWS) OF STORMWATER AND AUTHORIZED NON-STORMWATER FLOW ONTO, OVER, AND FROM THE SITE PROPERTY BEFORE AND AFTER MAJOR GRADING ACTIVITIES, INCLUDING LINES SHOWING BOUNDARIES BETWEEN DIFFERENT DRAINAGE AREAS; •DISCHARGE LOCATIONS AND TYPES, INCLUDING THE LOCATIONS OF ANY STORM DRAIN INLETS •MUNICIPAL SEPARATE STORM SEWER SYSTEMS TO INCLUDE THE IDENTIFICATION OF APPLICABLE OUTLETS, WHERE THE CONSTRUCTION ACTIVITY'S STORMWATER DISCHARGES ARE INTO THEM; SITE MAP CONTINUED •LOCATIONS AND SOURCES OF RUN-ON TO THE SITE FROM ADJACENT PROPERTY THAT MAY CONTAIN POTENTIAL POLLUTANTS (INCLUDING SEDIMENT); •LOCATIONS OF AREAS OF CUT AND FILL; •LOCATIONS OF AREAS WHICH ARE TO REMAIN UNDISTURBED INCLUDING VEGETATIVE BUFFER AREAS; •LOCATIONS OF EXISTING NATURAL COVER AND VEGETATION OR OTHER PRE-EXISTING GROUND STABILIZATION MEASURES BEFORE CONSTRUCTION (SUCH AS FOREST, PASTURE, LAWN, PAVEMENT, STRUCTURES); •APPROXIMATE SLOPES BEFORE AND AFTER MAJOR GRADING ACTIVITIES. NOTE AREAS OF STEEP SLOPES BOTH BEFORE AND AFTER GRADING; •LOCATIONS WHERE SEDIMENT, SOIL, OR OTHER CONSTRUCTION AND BUILDING MATERIALS WILL BE STOCKPILED; •LOCATIONS OF FUELING, VEHICLE AND EQUIPMENT MAINTENANCE, AND/OR VEHICLE CLEANING AND WASHING AREAS; •LOCATIONS OF CONCRETE WASHOUT AND OTHER WASTE MANAGEMENT AREAS; •LOCATIONS OF GROUND WATER OR OTHER CONSTRUCTION DEWATERING ACTIVITIES AND DISCHARGES (SEE PART 3.7.9. OF THIS PERMIT); SITE MAP CONTINUED •DESIGNATED POINTS ON THE SITE WHERE VEHICLES WILL EXIT ONTO PAVED ROADS; •LOCATIONS OF OTHER POTENTIAL POLLUTANT-GENERATING ACTIVITIES NOTSPECIFIED ELSEWHERE; •LOCATIONS OF ALL STRUCTURAL AND NON-STRUCTURAL BMPS FOR POTENTIAL POLLUTANTS OTHER THAN SEDIMENT; •LOCATIONS AND SPECIFIC TYPES OF ALL TEMPORARY OR PERMANENT EROSION AND SEDIMENT CONTROL BMPS; •LOCATIONS AND SPECIFIC TYPES OF ALL STORM WATER CONTROL BMPS, INCLUDING IMPOUNDMENTS OR CONVEYANCES SUCH AS RETENTION AND DETENTION PONDS, DITCHES, PIPES, AND SWALES; •LOCATIONS OF STRUCTURES AND OTHER IMPERVIOUS SURFACES UPON COMPLETION OF CONSTRUCTION; •PUBLIC SIGN (EFFECTIVE JANUARY 1, 2021); •MAP SCALE; NORTH ARROW; AND MAP LEGEND. SWPPP REVISIONS & UPDATES –WHEN •WHEN THERE IS A CHANGE IN DESIGN, CONSTRUCTION, OPERATION, OR MAINTENANCE OF THE SITE, WHICH WOULD REQUIRE THE IMPLEMENTATION OF NEW, ADDITIONAL,OR REVISED BMPS; OR •IF THE SWPPP PROVES TO BE INEFFECTIVE IN ACHIEVING THE GENERAL OBJECTIVES OF CONTROLLING POTENTIAL POLLUTANTS IN STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY; OR •THE DEPARTMENT DETERMINES THAT THE BMPS ARE NOT PROPERLY SELECTED, DESIGNED, INSTALLED, OPERATED, AND/OR MAINTAINED; OR •WHEN BMPS ARE NO LONGER NECESSARY AND ARE REMOVED. SWPPP REVISIONS & UPDATES -HOW •REVISIONS AND UPDATES DIRECTLY TO THE SWPPP AND CORRESPONDING SECTIONS (I.E. ADDITIONAL SWPPP PAGES ATTACHED TO INCLUDE THE TIME, DATE, AND SWPPP ADMINISTRATOR AUTHORIZING THE CHANGE), AND THE SITE MAP; OR •REVISIONS AND UPDATES REFLECTED THROUGH INSPECTION RECORDS, AND THE SITE MAP; OR •REVISIONS AND UPDATES REFLECTED THROUGH A LOG, AND THE SITE MAP.LOG ENTRIES MUST INCLUDE THE TIME AND DATE OF THE CHANGE(S) IN THE FIELD; AN IDENTIFICATION OF THE BMP(S) REMOVED OR ADDED; THE LOCATION(S) OF THOSE BMP(S); AND THE NAME OF THE SWPPP ADMINISTRATOR AUTHORIZING THE CHANGE. BREAK 19 20 21 22 23 24