General Permit for the Discharge of Stormwater from Separate Municipal Storm Sewer Systems Stormwater Management Plan Prepared For: Town of Newington March 29, 2017 Table of Contents Tighe&Bond Contents Section 0 Introduction ................................................... 0-1 0.1 Program Background ................................................................................. 0-1 0.2 Statewide General Permit ........................................................................... 0-1 0.3 Summary of Changes from 2004 Permit - MCMs ............................................ 0-2 0.3.1 Public Education and Outreach ............................................................. 0-2 0.3.2 Public Involvement and Participation ...................................................... 0-2 0.3.3 Illicit Discharge Detection and Elimination (IDDE) .................................... 0-2 0.3.4 Construction Site Stormwater Runoff Control .......................................... 0-3 0.3.5 Post-Construction Stormwater Runoff Control ......................................... 0-3 0.3.6 Pollution Prevention and Good Housekeeping .......................................... 0-3 0.4 Summary of Changes from 2004 Permit – Other ............................................ 0-4 0.4.0 Impaired Waters ................................................................................. 0-4 0.4.1 Monitoring ......................................................................................... 0-4 0.5 Applicability ............................................................................................. 0-4 0.6 Preparation of the Plan .............................................................................. 0-5 0.7 Description of Municipality .......................................................................... 0-5 0.8 Watershed-Based Management ................................................................... 0-5 0.9 Watershed Inventory ................................................................................. 0-6 0.10 Water Quality ........................................................................................... 0-6 0.11 Endangered and Threatened Species ........................................................... 0-9 0.12 Aquifer Protection ..................................................................................... 0-9 0.13 Historic Properties ..................................................................................... 0-9 0.14 New Discharges to Impaired Waters ............................................................ 0-9 0.15 Stormwater Implementation Team ............................................................ 0-10 0.16 Maximum Extent Practicable ..................................................................... 0-10 Minimum Control Measures Section 1 Public Education and Outreach ....................... 1-1 1.0 Regulatory Goals ...................................................................................... 1-1 1.1 Procure Educational Materials ..................................................................... 1-1 1.1.0 Regulatory Requirement ...................................................................... 1-1 1.1.1 BMP Description .................................................................................. 1-2 1.1.2 Implementation .................................................................................. 1-2 1.2 Address Education/Outreach for Pollutants of Concern .................................... 1-3 1.2.0 Regulatory Requirement ...................................................................... 1-3 1.2.1 BMP Description .................................................................................. 1-3 1.2.2 Implementation .................................................................................. 1-3 1.3 Stormwater Page on Town Website .............................................................. 1-4 1.3.0 Regulatory Requirements ..................................................................... 1-4 1.3.1 BMP Description .................................................................................. 1-4 1.3.2 Implementation .................................................................................. 1-5 Town of Newington Table of Contents Stormwater Management Plan i Table of Contents Tighe&Bond Section 2 Public Involvement and Participation ............. 2-1 2.0 Regulatory Goals ...................................................................................... 2-1 2.1 Comply with Public Notice Requirements ...................................................... 2-1 2.1.0 Regulatory Requirement ...................................................................... 2-1 2.1.1 BMP Description .................................................................................. 2-1 2.1.2 Implementation .................................................................................. 2-1 2.2 Partner with Local Volunteer Organizations ................................................... 2-2 2.2.0 Regulatory Requirement ...................................................................... 2-2 2.2.1 BMP Description .................................................................................. 2-2 2.2.2 Implementation .................................................................................. 2-3 2.3 Household Hazardous Waste Collection ........................................................ 2-3 2.3.0 Regulatory Requirement ...................................................................... 2-3 2.3.1 BMP Description .................................................................................. 2-3 2.3.2 Implementation .................................................................................. 2-3 Section 3 Illicit Discharge Detection and Elimination ..... 3-1 3.0 Regulatory Goals ...................................................................................... 3-1 3.1 Prepare Written IDDE Program .................................................................... 3-1 3.1.0 Regulatory Requirement ...................................................................... 3-1 3.1.1 BMP Description .................................................................................. 3-2 3.1.2 Implementation .................................................................................. 3-2 3.2 Town Outfall Mapping ................................................................................ 3-3 3.2.0 Regulatory Requirement ...................................................................... 3-3 3.2.1 BMP Description .................................................................................. 3-3 3.2.2 Implementation .................................................................................. 3-4 3.3 Tracking of Citizen Illicit Discharge Reporting ................................................ 3-4 3.3.0 Regulatory Requirement ...................................................................... 3-4 3.3.1 BMP Description .................................................................................. 3-5 3.3.2 Implementation .................................................................................. 3-5 3.4 Legal Authority to Prohibit Illicit Discharges .................................................. 3-5 3.4.0 Regulatory Requirement ...................................................................... 3-5 3.4.1 BMP Description .................................................................................. 3-6 3.4.2 Implementation .................................................................................. 3-7 3.5 Develop Record Keeping System for IDDE Tracking ........................................ 3-7 3.5.0 Regulatory Requirement ...................................................................... 3-7 3.5.1 BMP Description .................................................................................. 3-7 3.5.2 Implementation .................................................................................. 3-8 3.6 Address IDDE in Areas with Pollutants of Concern .......................................... 3-8 3.6.0 Regulatory Requirement ...................................................................... 3-8 3.6.1 BMP Description .................................................................................. 3-8 3.6.2 Implementation .................................................................................. 3-9 Section 4 Construction Site Stormwater Runoff Controls 4-1 4.0 Regulatory Goals ...................................................................................... 4-1 4.1 Implement, Upgrade and Enforce Land Use Regulations or Other Legal Authorities to Meet Requirements of MS4 General Permit ......................................................... 4-1 4.1.0 Regulatory Requirement ...................................................................... 4-1 4.1.1 BMP Description .................................................................................. 4-1 4.1.2 Implementation .................................................................................. 4-2 Town of Newington Table of Contents Stormwater Management Plan ii Table of Contents Tighe&Bond 4.2 Interdepartmental Coordination .................................................................. 4-3 4.2.0 Regulatory Requirement ...................................................................... 4-3 4.2.1 BMP Description .................................................................................