Storm Water Management Program Plan June 2019 City of Huntsville, Alabama Phase I MS4 NPDES Permit No. ALS000005 Prepared by S& ME , Inc . 360D Quality Circle NW, Suite 450D Huntsville, AL 35806 June 21, 2019 City of Huntsville Department of Natural Resources 302 Fountain Circle Huntsville, Alabama 35801 Attention: Mr. Scott Cardno, Director of Natural Resources Reference: Storm Water Management Program Plan City of Huntsville Municipal Separate Storm Sewer System Huntsville, Alabama NPDES Permit No. ALS000005 S&ME Project No. 4482-19-001 Dear Mr. Cardno: S&ME, Inc. has assisted the City of Huntsville with the preparation of the Storm Water Management Program Plan (SWMPP) for the Huntsville Phase I Municipal Separate Storm Sewer System in accordance with S&ME Proposal No. 44-1800325 REV 1, dated November 16, 2018 and authorized by Resolution 18-1142 on December 20, 2018. One electronic copy of the SWMPP has been provided to you for submittal to ADEM. Following ADEM’s review and acknowledgment of the SWMPP, S&ME will provide a hardcopy of the final SWMPP for your records. S&ME appreciates the opportunity to be of service to you. If you have any questions regarding the information provided herein, please do not hesitate to contact us. Sincerely, S&ME, Inc. Sarah L. Yeldell, P.E. Charles R. Oligee, P.E. Project Manager Senior Engineer S&ME, Inc. | 360D Quality Circle NW, Suite 450 | Huntsville, AL 35806 | p 256.837.8882 | www.smeinc.com Storm Water Management Program Plan City of Huntsville Municipal Separate Storm Sewer System Huntsville, Alabama NPDES Permit No. ALS000005 Table of Contents 1.0 Introduction ....................................................................................................................... 1 1.1 Permit History................................................................................................................................. 1 1.2 Huntsville MS4 Area ...................................................................................................................... 1 1.3 Hydrologic Units in the MS4 Area ............................................................................................... 2 1.4 Water Quality Concerns ................................................................................................................ 3 1.4.1 Impaired Waterbodies within the City Limits ................................................................................... 3 1.4.2 Impaired Watersheds Intersecting the City Limits ........................................................................... 4 1.4.3 Construction Priority Sites ............................................................................................................... 5 2.0 SWMPP Development, Review, and Update .............................................................. 5 2.1 SWMPP Components..................................................................................................................... 5 2.2 Annual Review ............................................................................................................................... 6 2.3 Updates to the SWMPP ................................................................................................................. 6 2.4 Responsible Party ........................................................................................................................... 6 3.0 Annual Reports .................................................................................................................. 6 3.1 Recordkeeping ................................................................................................................................ 7 4.0 Storm Water Collection System Operations ................................................................ 8 4.1 Rationale .......................................................................................................................................... 8 4.2 Strategies .......................................................................................................................................... 8 4.3 Responsible Parties......................................................................................................................... 9 5.0 Public Education and Public Involvement ................................................................ 11 5.1 Rationale ........................................................................................................................................ 11 5.1.1 Target Audiences ............................................................................................................................ 11 5.2 Strategies ........................................................................................................................................ 12 5.2.1 Public Input .................................................................................................................................... 12 5.2.2 Litter Reduction .............................................................................................................................. 12 5.2.3 Education on Pollution Reduction .................................................................................................. 13 5.2.4 Public Participation ........................................................................................................................ 15 5.2.5 Program Evaluation ........................................................................................................................ 18 June 2019 ii Storm Water Management Program Plan City of Huntsville Municipal Separate Storm Sewer System Huntsville, Alabama NPDES Permit No. ALS000005 5.3 Responsible Parties....................................................................................................................... 19 6.0 Illicit Discharge Detection and Elimination .............................................................. 20 6.1 Rationale ........................................................................................................................................ 20 6.2 Strategies ........................................................................................................................................ 20 6.2.1 Legal Authority ............................................................................................................................... 20 6.2.2 Field Assessment Activities ............................................................................................................ 21 6.2.3 Illicit Discharge Investigation ......................................................................................................... 23 6.2.4 Corrective Actions ........................................................................................................................... 23 6.2.5 Public IDDE Education .................................................................................................................. 25 6.2.6 Municipal Employee Training ........................................................................................................ 25 6.3 Responsible Parties....................................................................................................................... 25 7.0 Construction Site Storm Water Runoff Control ....................................................... 27 7.1 Rationale ........................................................................................................................................ 27 7.2 Strategies ........................................................................................................................................ 27 7.2.1 Legal Authority ............................................................................................................................... 27 7.2.2 Site Plan Review and Approval ...................................................................................................... 30 7.2.3 Public Complaint Reporting ........................................................................................................... 31 7.2.4 Site Inspection ................................................................................................................................. 31 7.2.5 Enforcement Response Plan ............................................................................................................ 34 7.2.6 Enforcement Tracking ..................................................................................................................... 35 7.2.7 Educational Resources .................................................................................................................... 36 7.3 Responsible Parties....................................................................................................................... 36 8.0 Post-construction Storm Water Management ............................................................ 38 8.1 Rationale ........................................................................................................................................ 38 8.2 Strategies ........................................................................................................................................ 38 8.2.1 Legal Authority and Design Standards .......................................................................................... 38 8.2.2 Plan Review and Oversight ...........................................................................................................