City of Mobile Stormwater Management Plan
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STORM WATER MANAGEMENT PROGRAM PLAN May 2014 Prepared for City of Mobile P.O. Box 1827 Mobile, Alabama 36633-1827 Prepared by Payne Environmental Services 7320 Hitt Road Mobile, Alabama 36695 (251) 342-9400 www.payne-env.com Stormwater Management Program Plan – City of Mobile May 2014 TABLE OF CONTENTS SECTION NO. TITLE 1.0 INTRODUCTION 1.1 Regulatory Overview ...............................................................................................1 1.2 MS4 Jurisdictional Boundary ..................................................................................2 2.0 PROGRAM MANAGEMENT 2.1 Permittee Responsibilities ........................................................................................4 2.2 Funding Sources.......................................................................................................4 2.3 Legal Authority and Enforcement ...........................................................................4 3.0 STORMWATER COLLECTION SYSTEM OPERATIONS 3.1 Structural Controls ...................................................................................................7 3.2 Catch Basins.............................................................................................................8 3.3 Litter Traps...............................................................................................................8 4.0 PUBLIC EDUCATION AND PUBLIC INVOLVEMENT 4.1 Introduction ............................................................................................................10 4.2 Educational Activities ............................................................................................10 4.3 Public Participation and Involvement ....................................................................16 5.0 ILLICIT DISCHARGE DETECTION AND ELIMINATION 5.1 Introduction ............................................................................................................19 5.2 Program to Locate Illicit Discharges & Improper Disposal into MS4 .................20 5.3 Enforcement ...........................................................................................................23 6.0 CONSTRUCTION SITE STORM WATER RUNOFF CONTROL 6.1 Introduction ............................................................................................................25 6.2 Site Plan Review ....................................................................................................25 6.3 Construction Site Inspection ..................................................................................27 6.4 Enforcement Response for Construction Site Violations ......................................28 7.0 POST-CONSTRUCTION STORM WATER MANAGEMENT IN NEW DEVELOPMENT and RE-DEVELOPMENT 7.1 Requirements and Standards ..................................................................................29 7.2 Post-Construction Inspections ...............................................................................30 Page | ii Stormwater Management Program Plan – City of Mobile May 2014 8.0 SPILL PREVENTION AND RESPONSE 8.1 Spill Prevention/Spill Response Plan.....................................................................32 8.2 Spill Prevention and Response Training for City Personnel .................................33 9.0 POLLUTION PREVENTION/GOOD HOUSEKEEPING 9.1 Introduction ............................................................................................................34 9.2 Pollution Prevention...............................................................................................34 9.3 Good Housekeeping ...............................................................................................37 10.0 PESTICIDES, HERBICIDES AND FERTILIZERS 10.1 PHF Inspections and Monitoring ...........................................................................40 10.2 Employee PHF Training ........................................................................................41 11.0 OIL, TOXICS, AND HOUSEHOLD HAZARDOUS WASTE 11.1 Employee Training .................................................................................................42 12.0 INDUSTRIAL STORMWATER RUNOFF 12.1 Priorities and Procedures for Inspections of Industrial Facilities and High-Risk Facilities .................................................................................................................43 12.2 Inventory of Industrial and High-Risk Stormwater Sources ..................................44 13.0 WET-WEATHER MONITORING 13.1 Storm Event Monitoring ........................................................................................45 13.2 Impaired Water Bodies ..........................................................................................46 14.0 IMPLEMENTATION AND REVIEW 14.1 Introduction ............................................................................................................48 14.2 Documentation .......................................................................................................48 14.3 Review and Revisions ............................................................................................48 14.4 Annual Report ........................................................................................................48 APPENDICES Appendix A – Maps Appendix B – Organizational Chart for Stormwater Management Program Appendix C – Standard Operating Procedures (SOPs) Appendix D – Inspection Checklists Appendix E – IDDE Plan and Enforcement Response Plan Appendix F – Municipal Facility Inventory and Training/Inspection Schedule Page | iii Stormwater Management Program Plan – City of Mobile May 2014 1.0 INTRODUCTION 1.1 Regulatory Overview This Stormwater Management Program (SWMP) Plan includes pollution prevention measures, stormwater monitoring, use of legal authority, and other appropriate means to control the quality of stormwater discharged from the City of Mobile (City) Separate Storm Sewer System (MS4), in accordance with the Preliminary Draft National Pollutant Discharge Elimination System (NPDES) Permit number ALS000007 and current NPDES Permit number ALS000002. The SWMP is implemented in accordance with Section 402(p)(3)(B) of the Clean Water Act, and the Stormwater Regulations at 40 CFR Part 122.26. It is the goal of the SWMP to reduce the discharge of pollutants to and from the MS4 to the maximum extent practical (MEP), thus protecting the quality of water in the receiving water bodies. This Stormwater Management Program covers the term of the permit and is updated as necessary, or as required by the Alabama Department of Environmental Management (ADEM), to ensure compliance with the statutory requirements of the Clean Water Act. Per the NPDES Permit number ALS000007 requirements, BMPs and measureable goals are provided in Sections 3-13 for each program element listed below: • Storm Water Collection System Operations • Public Education and Public Involvement on Storm Water Impacts • Illicit Discharge Detection and Elimination • Construction Site Storm Water Runoff Control • Post-Construction Storm Water Management in New Development and Re- Development • Spill Prevention and Response • Pollution Prevention/Good Housekeeping for Municipal Operations • Application of Pesticide, Herbicide, and Fertilizers • Oils, Toxics, and Household Hazardous Waste Control • Industrial Storm Water Runoff • Wet-Weather Monitoring and Reporting ADEM defines the fiscal year as October 1 to September 30. ADEM and the City have agreed to a schedule for measureable goals as outlined in the following sections. Year one (1) indicates the period from May through September 2014 which is the intended first fiscal year under the Preliminary Draft NPDES Permit number ALS000007, however, this schedule will not be contingent on the date of permit issuance. Year two (2) indicates the period from October 2014 through September 2015 and so on. For year one (1) Page | 1 Stormwater Management Program Plan – City of Mobile May 2014 milestones which include specified frequencies, the City shall begin meeting the required frequencies in May 2014. For some milestones, tasks performed between October 2013 and April 2014 may be credited toward a year one (1) milestone (e.g., structural control inspections conducted in April 2014 may be credited toward the third quarter milestone). 1.2 MS4 Jurisdictional Boundary The City’s MS4 boundary is bounded by Mobile Bay to the east, City of Prichard’s MS4 to the north, and Mobile County’s MS4 to the west and south. The City’s MS4 boundary includes parts of nine sub-watersheds: Bayou Sara, Chickasaw Creek, Dog River, Millers Creek, Mobile Bay, Mobile River, Muddy Creek, Pierce Creek, and Threemile Creek. The City’s MS4 covers approximately 148 square miles of industrial, commercial, and residential properties, undeveloped land, wetlands, and tidally influenced streams. Maps showing the jurisdictional boundary with sub-watersheds and land use are provided in Appendix A. The City’s MS4 boundary encompasses 15 waterbodies which are considered impaired by the U.S. Environmental Protection Agency and ADEM. These waterbodies are included on the 303(d) List or have been assigned a Total Maximum Daily Load for at least one pollutant. Many of the impaired waterbodies flow from or to other city/county MS4 boundaries. The Map of Impaired Waterbodies on 303(d) List or Assigned a TMDL is included in Appendix A. The table on the following page provides the impaired waterbody name, representative watershed, designated