2024 Annual MS4 Report_Permit No GSM000023
document center
| Pages | 50 |
|---|---|
| File Size | 5.3 MB |
| Folder | Departments/Public Works |
| OCR Status | Searchable (OCR processed) |
| Source URL | Original |
Document Preview
Full Text (OCR Extracted)
855 Winding Brook Drive 2nd Floor Glastonbury, CT 06033 T: 860.633.8770 bartonandloguidice.com 2024 ANNUAL REPORT General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems (MS4) Registration No. GSM000023 for Town of Waterford, CT 15 Rope Ferry Road Waterford, CT 06385 Prepared By: DEEP-WPED-REG-021A 1 of 3 Rev. 1/30/18 MS4 Annual Report Transmittal Form For the General Permit to Discharge Stormwater from Small Municipal Separate Storm Sewer Systems (MS4) Print or type unless otherwise noted. Please submit this completed transmittal form, fee, and the MS4 Annual Report as indicated at the end of this form. Part I: Annual Report General Information 1. Reporting Period (Calendar Year): 2024 2. Provide the registration number for the existing general permit registration: GSM000023 3. Registrant Type (check one): Fees state institution/agency $375.00 [713] federal institution/agency $375.00 [713] municipality $187.50 [713] 4. Municipality name or Municipality name where institution is located: Town of Waterford The annual report will not be processed without the fee. The fee shall be non-refundable and shall be paid by check or money order to the Department of Energy and Environmental Protection (DEEP) or by such other method as the commissioner may allow. Part II: Registrant Information 1. Registrant (Name of Municipality or State or Federal Institution/Agency): Town of Waterford Mailing Address: 15 Rope Ferry Road City/Town: Waterford State: CT Zip Code: 06385 Business Phone: (860) 444-5834 ext.: Contact Person: Gary Schneider Phone: 860-444-5864 ext. *E-mail: gschneider@waterfordct.org *By providing this e-mail address you are agreeing to receive official correspondence from DEEP, at this electronic address, concerning the subject registration. Please remember to check your security settings to be sure you can receive e-mails from “ct.gov” addresses. Also, please notify DEEP if your e-mail address changes. CPPU USE ONLY App #:________________________________ Doc #:________________________________ Check #:______________________________ ______________________________________ Program: Stormwater Permits DEEP-WPED-REG-021A 2 of 3 Rev. 1/30/18 Part II: Registrant Information (continued) 2. Billing contact, if different than the registrant. Name: Mailing Address: City/Town: State: Zip Code: Business Phone: ext.: Contact Person: Phone: ext. E-mail: 3. Primary contact for departmental correspondence and inquiries, if different than the registrant. Name: Mailing Address: City/Town: State: Zip Code: Business Phone: ext.: Contact Person: Phone: ext. *E-mail: *By providing this e-mail address you are agreeing to receive official correspondence from DEEP, at this electronic address, concerning the subject registration. Please remember to check your security settings to be sure you can receive e-mails from “ct.gov” addresses. Also, please notify DEEP if your e-mail address changes. 4. Engineer(s) or other consultant(s) employed or retained to assist in preparing the annual report. Check here if additional sheets are necessary, and label and attach them to this sheet. Name: Barton & Loguidice, LLC Mailing Address: 855 Winding Brook Drive 2nd Floor City/Town: Glastonbury State: CT Zip Code: 06333 Business Phone: 860-633-8770 ext.: Contact Person: T.J. Therriault Phone: 860-633-8770 ext. E-mail: tjt@bartonandloguidice.com Service Provided: Report preperation 5. Check here if there are adjacent towns or other entities with which implementation of the Stormwater Management Plan is coordinated for a portion of the subject MS4. If so, provide the names of such towns or entities: Town of Waterford 2024 Annual Report Page 1 of 30 Permit Number GSM000023 Barton & Loguidice, LLC MS4 General Permit Town of Waterford 2024 Annual Report Existing MS4 Permittee Permit Number GSM000023 January 1, 2024 – December 31, 2024 Primary MS4 Contact: Gary J. Schneider; Director of Public Works; (860) 444-5864; gschneider@waterfordct.org This report documents the Town of Waterford’s efforts to comply with the conditions of the MS4 General Permit to the maximum extent practicable (MEP) from January 1, 2024 to December 31, 2024. Executive Summary Submission of this report by the Town Waterford maintains compliance with the reporting requirements and registration (no. GSM000023) under the General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems (MS4), submitted to the State of Connecticut Department of Energy and Environmental Protection (‘CT DEEP’) Commissioner for activities located within the Town of Waterford. The Town of Waterford certifies by this report that the terms and conditions of the General Permit are being met to the maximum extent practicable (MEP). The Town of Waterford, hired a Professional Engineering Consultant, Barton & Loguidice, LLC (B&L), who has completed much of the dry weather screening and sampling of the Town’s existing and newly identified outfalls (428 municipally-owned, an increase from 376 in 2022). Through the efforts of B&L, the Town continues working toward the completion of all dry weather outfall Illicit Discharge Detection and Elimination (IDDE) screening and sampling, and wet weather impaired outfall sampling efforts for all of the municipally-owned outfalls identified in the Town to the MEP. From 2021 through 2024, the Town made significant updates to the MS4 system mapping based on street map as-built drawings and field observations made by B&L. Through the field investigation process, large areas of the MS4 system that were previously mapped in GIS were identified as needing significant updates based on actual field conditions. These areas of the Town’s system mapping were able to be resolved by adding missing structures and correcting piping to match the true conditions. B&L also identified several large areas in Waterford that were missing mapping entirely and meetings were conducted with the Waterford DPW to locate “as-built” drawings for the missing areas. This is a long and tedious process that exhausts a lot of resources but, large uncertain areas of the Town’s system mapping were able to be resolved, missing structures added, and piping corrected to match the true conditions. B&L’s efforts assisted in reducing the burden on the Town for mapping locations that could be resolved in the field allowing the Town to focus on other aspects of the MS4 permit. By performing the actions listed above, B&L located approximately 50 new outfalls in 2023 and 2024, including 14 new drop down catch basins (catch basins that discharge directly into a waterway with no other piping connected to the system). These newly identified outfalls have been updated in the databases and catchment ranking tables. In 2024, efforts will continue to be made to complete the delineation of the outfall catchment areas. B&L’s primary focus in 2023 and 2024 was to screen all new outfalls located from 2021 through 2024. B&L screened an additional 190 outfalls during dry weather events in 2023-2024. To date, dry weather screening and sampling efforts were completed at 416 (an increase from 403 in 2024) Town-owned outfalls and a total of Town of Waterford 2024 Annual Report Page 2 of 30 Permit Number GSM000023 Barton & Loguidice, LLC 80 samples were collected. Seven outfalls sampled were identified with suspected illicit discharges and were ranked at the top of the high priority category for further investigations. B&L initiated efforts on the 12 highest priority ranked outfalls for IDDE investigations. During these efforts, two catchments were screened completely, three catchments were partially screened, and seven catchments were unable to be completed because they were dry during the follow-up screening events. More attempts will be made for the incomplete investigations, most likely during the spring season of 2025, when the groundwater levels are higher. In 2024, B&L continued sampling efforts during wet weather events. In 2024, three additional samples were collected and were identified with suspected illicit discharges. To date, wet weather screening and sampling efforts were completed at 34 of the 62 known impaired outfall locations. The initial number of suspected outfalls discharging to impaired waters was 29, which has been increased to 62 during the mapping updates. Of the 34 outfalls sampled, 24 were identified with suspected illicit discharges and were ranked at the top of the high priority category for further investigations. Due to the limited amount of qualifying storm events, issues experienced out in the field, and the fact that most of the outfalls are tidally influenced, in 2025, B&L will continue its focus on collecting wet weather samples from the remaining outfalls and from the most upgradient structure from the waterbody as possible. B&L will continue to attempt to collect wet weather samples from the impaired outfalls until all known locations are sampled. In addition to continuing to collect initial wet weather samples, B&L was able to collect all six annual outfalls samples in 2024. In 2024, the Niantic River Watershed Committee tracked high occurrences of bacteria in July and August at selected stormwater outfalls to Niantic River. They then collected samples in November 2024 from Banning Cove and Kiddee’s Beach and analyzed with an e/DNA sample kit. The draft results were forwarded to the Town of Waterford on December 20, 2024. Results from the Niantic River Watershed Committee efforts are attached to this report. Follow up on these results are continuing, particularly regarding the detected swine DNA and potential sources of human DNA. In 2021, B&L conducted baseline inspections at 35 municipal stormwater treatment structures. B&L has since identified five new stormwater treatment structures. B&L will continue to review the existing structures against available mapping to accurately map all known treatment structures for the Town and will update the mapping and list of structures accordingly. In 2021, B&L provided the Town with a spreadsheet of all structures inspected with the conditions of each structure listed and estimated costs for annual maintenance for each of the municipal structure inspected. In 2021, B&L identified the top 40 Town-owned properties with the greatest amount of impervious area. These sites were then evaluated to determine whether or not runoff from the impervious areas discharge to the MS4. The next phase of the desktop analysis was to confirm the presence of directly connected impervious areas (DCIA) at each site, as well as determine the suitability and capacity of site soils for supporting the implementation of retrofit projects. Many of these sites were ruled out because of low depth to groundwater, they already contained treatment systems, or they were not connected to the MS4. In 2025, the Town will continue working with its consultant to identify and prioritize potential projects for the Retrofit Program to the maximum extent practicable. A new DCIA tracking worksheet was prepared by B&L in 2021 for inclusion in the Town’s land development applications. The worksheet would confirm compliance of applicants with site stormwater runoff retainage requirements, as well as determine the total change in site DCIA. The change in site DCIA would then be incorporated into the Town’s overall DCIA tracking spreadsheet for determining progress towards the Town’s DCIA disconnection goal. The Town is in the process of reviewing and implementing the new DCIA tracking worksheet. In 2021, B&L identified all industrial and commercial facilities within the Town that likely needed to be registered for CT DEEP’s Industrial and Commercial Stormwater General Permits, who are not currently registered. B&L then prepared educational brochures regarding these stormwater permits, which the Town mailed to all of the applicable industrial facilities in 2021 and the Town will be distributing to the commercial facilities. Town of Waterford 2024 Annual Report Page 3 of 30 Permit Number GSM000023 Barton & Loguidice, LLC B&L is in the process of preparing an MS4 Pollution Prevention and Good Housekeeping Protocols document for the Town. This document will optimize some of the best management practices (BMPs) that are currently being carried out by the Department of Public Works to minimize the discharge of pollutants to the Town’s MS4 and waters of the State. BMPs for the following protocols are covered in this document: cleaning and maintenance of vehicles and equipment, leaf management, streets and parking lot sweeping, catch basin inspection and cleaning, and snow management. B&L evaluated the Town’s land use regulations with respect to construction stormwater runoff control and post-construction stormwater management. A report was prepared comparing existing regulations to MS4 General Permit requirements. Recommended regulatory revisions were included in this report. The Town will continue to periodically review its stormwater management regulations and makes revisions, if necessary, to meet MS4 general permit requirements. Town of Waterford 2024 Annual Report Page 4 of 30 Permit Number GSM000023 Barton & Loguidice, LLC Part I: Summary of Minimum Control Measure Activities 1. PUBLIC EDUCATION AND OUTREACH (Section 6 (a)(1) / page 19) 1.1 BMP Summary BMP Activities in current reporting period Sources Used (if applicable) Method of Distribution Audience (and number of people reached) Measurable goal Department/ Person Responsible Additional details 1-1 Implement public education and outreach Link was created for accessing the Town’s Stormwater Regulations website. Links were added discussing Stormwater & Water Quality, Impervious Cover, Urban Runoff, the NPDES Program and Save the Sound. Planning & Development and Recreation & Parks added a webpage link to the Stormwater. Informational material is also present at Town offices. In 2024, the Town provided notices in the Park & Rec booklets that were distributed to residents, including: “Stormwater: Where It Flows, Everything Goes”; “10 Things You Can Do”; & “When It Rains, It Drains”. CT DEEP, NRDC, UConn NEMO, NOFA, NH DES, Clemson Cooperative Extension, Minnesota PCA, Long Island Sound Study, Save the Sound, Connecticut Conservation Districts, EPA Town Offices and Webpage: https://www.waterfordct.org/ 426/Stormwater-Regulations General Public Continue distributing educational brochures as bill inserts, mailings, and fact sheets at town offices and with building permits, and on the town website. Department of Public Works 1-2 Address education/ outreach for pollutants of concern* Weblinks regarding nitrogen, phosphorus, turbidity and bacteria are available on the Town’s Stormwater webpage. What residents can do to mitigate these pollutants is also discussed on the Stormwater webpage. See BMP 1-1 Town Webpage: https://www.waterfordct.org/ 426/Stormwater-Regulations General Public Develop and Distribute Information on Nitrogen and Bacteria Pollution Department of Public Works Town of Waterford 2024 Annual Report Page 5 of 30 Permit Number GSM000023 Barton & Loguidice, LLC BMP Activities in current reporting period Sources Used (if applicable) Method of Distribution Audience (and number of people reached) Measurable goal Department/ Person Responsible Additional details 1-3 Town Website The SMP and draft Annual Report are also available through the Town’s website. Public educational documents are available on the Town’s Stormwater Regulations webpage (see BMP 1-1 and BMP 1- 2). A notification/link for the Construction Stormwater General Permit is also available on the Town’s Stormwater Regulations webpage (see BMP 4-6). See BMP 1-1 / BMP 1-2 Town Webpage: https://www.waterfordct.org/ 426/Stormwater-Regulations General Public Update website to include additional stormwater information. Department of Public Works 1-4 Catch Basin Stenciling/Badges All catch basins have been stenciled. In 2024, the Town continued to re- stencil basins, as needed. Not Applicable Not Applicable General Public Continue an on- going stenciling program in which basins in Town are prioritized and stenciled. Department of Public Works The Town will continue its catch basin stenciling program, as needed. 1-5 Household Hazardous Waste Collection Days HHW Collections Days in 2024 were conducted on 4/6, 5/4, 6/15, 7/6, 7/20, 8/3, 9/14, 10/5 and 11/2. Southeastern Connecticut Regional Resources Recovery Authority (SCRRRA) Town Webpage: www.waterfordct.org/ 418/Hazardous-Household- Waste-Paper-Shreddin SCRRRA provided fliers. General Public Continue program in an effort to remove household hazardous waste safely from the waste stream using a Qualifying Local Program Department of Public Works 1.2 Describe any Public Education and Outreach activities planned for the next year, if applicable Continue to update the Town’s Stormwater webpage with new/updated stormwater related information Continue distributing educational brochures Attempt to coordinate efforts with local schools for presentation on stormwater management Continue the catch basin stenciling/badges program, as needed Continue to coordinate HHW program Town of Waterford 2024 Annual Report Page 6 of 30 Permit Number GSM000023 Barton & Loguidice, LLC 2. PUBLIC INVOLVEMENT/PARTICIPATION (Section 6(a)(2) / page 21) 2.1 BMP Summary BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Location Posted Additional details 2-1a Final Stormwater Management Plan publicly available Complete Notice of the SMP was published in The Day newspaper and on Town’s Stormwater website. Notify public of published SMP and document comments received. Department of Public Works April 1, 2017 The Day, Planning & Development and Town Clerk’s Offices, Department of Public Works Complex, the Library and https://www.waterfordct.org/ 426/Stormwater-Regulations The Stormwater Management Plan will be reviewed periodically and updated, as necessary. 2-1b Comply with public notice requirements for Annual Reports (annually by 2/15) Complete Notice of the draft 2023 Annual Report was posted on the Town’s website on 2/1/24 and the report was available on the Town’s website from 2/15/24 through 3/26/24. Notify public of draft Annual Report and document comments received. Department of Public Works 2023 Report: Feb 15, 2024 2024 Report: Feb 15, 2025 Planning & Development and Town Clerk’s Offices, Department of Public Works Complex, the Library and https://www.waterfordct.org/ 411/Public-Works Notice of the draft 2024 Annual Report was posted in The Day newspaper on 1/15/25 and the report was available on the Town’s website from 2/13/25 through 3/25/25. 2-2 Community Group Engagement Complete The Planning Department and Public Works department continue to work with the Niantic River Watershed Committee in implementation of educational programs, and installation of LID measures within the Niantic Watershed. Identify and reach out to local organizations that may want to participate in review and implementation of this SMP. Department of Public Works On-going 2-3 Interagency Meetings Complete Meetings were held throughout the year with Public Works and Planning & Development. Continue to facilitate a panel of staff and volunteers. Department of Public Works On-going Not Applicable 2.2 Describe any Public Involvement/Participation activities planned for the next year, if applicable. Continue to provide notice of updated SMPs and draft Annual Reports Continue to engage Community Groups Continue interagency meetings Town of Waterford 2024 Annual Report Page 7 of 30 Permit Number GSM000023 Barton & Loguidice, LLC 3. ILLICIT DISCHARGE DETECTION AND ELIMINATION (Section 6(a)(3) and Appendix B / page 22) 3.1 BMP Summary BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 3-1 Develop written IDDE program (Due 7/1/19) Complete The Town finalized its IDDE program. Development and implement an IDDE Program Department of Public Works Apr 29, 2020 3-2 Develop list and maps of all MS4 stormwater outfalls in priority areas (Due 7/1/20) Substantially Complete From 2021 through 2024, with assistance from the Town’s consultant, Barton & Loguidice, the Town conducted significant efforts to confirm and locate additional outfalls in priority areas that were either incorrect or not previously identified. Finalize mapping of all MS4 Outfalls Department of Public works Substantially Complete December 2024 In 2025, the Town will continue to update its mapping as new information is gathered. 3-3 Implement citizen reporting program (On-going) In Progress/ On-going Currently, citizens can call the Department of Public Works to report any activities. Develop an online method for citizens to report spills and illicit dischargers Department of Public Works February 2025 The Town is adding an email and phone contact on the stormwater page for reporting illicit discharges. 3-4 Establish legal authority to prohibit illicit discharges (Due 7/1/19) Substantial Complete Current ordinance generally meets requirements. The Town reviewed its ordinance against the template provided by UConn CLEAR and may make slight changes to be more consistent with the template. Review and update ordinances. Department of Public Works December 2024 3-5 Develop record keeping system for IDDE tracking (Due 7/1/17) Complete The Town currently uses excel and access spreadsheets, along with GIS, for IDDE tracking. Record illicit discharge abatement activities. Develop and maintain an SSO inventory. Department of Public Works Jul 1, 2017 On-going 3-6 Address IDDE in areas with pollutants of concern In Progress From 2021 through 2024, B&L continued IDDE investigations for catchment areas that discharge to impaired waters. It is anticipated that B&L will complete the initial investigations started and will continue to investigate additional suspected illicit discharges in 2025 to the maximum extent practicable. Identify which areas in Town are most likely to contribute nitrogen phosphorous, and bacteria to the MS4 (IDDEs). Department of Public Works On-going The Town continues to identify structures that are not connected to the sanitary sewer system which are located near the MS4. Town of Waterford 2024 Annual Report Page 8 of 30 Permit Number GSM000023 Barton & Loguidice, LLC BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 3-7 Map MS4 System in Priority Areas Substantially Complete From 2021 through 2024, with assistance from B&L, the Town conducted significant efforts to confirm and locate additional outfalls in priority areas that were either not mapped correctly or were not previously identified. The Town also conducted efforts for updating the mapping for catch basins, piping and stormwater structures in priority areas. Map Priority Areas Department of Public Works Substantially Complete December 2024 In 2025, the Town will continue to update its mapping as new information is gathered. 3.2 Describe any IDDE activities planned for the next year, if applicable. Post IDDE Program to the Stormwater webpage and include link in next year’s Annual Report Post an Illicit Discharge Reporting link on the Stormwater webpage Continue updating the MS4 outfall and system mapping Maintain master IDDE tracking system Continue to investigate illicit discharges in areas with pollutants of concern 3.3 Provide a record of all citizen reports of suspected illicit discharges and other illicit discharges occurring during the reporting period and SSOs occurring July 2017 through end of reporting period using the following table. No citizen reports of suspected illicit discharges were reported during 2024. No other illicit discharges were reported during 2024. Location (Lat long/ street crossing /address and receiving water) Date and duration of occurrence Discharge to MS4 or surface water Estimated volume discharged Known or suspected cause / Responsible party Corrective measures planned and completed (include dates) Sampling data (if applicable) The following SSOs were reported from 2017 through 2024 Magonk Point Road Started 8/31/21 Ended 9/1/21 No 51-500 gallons Pump station equipment failure (reported by neighbor) / Utility Commission Office Force main was drained, tanker was used to by-pass the pump station, and staff/contractor repaired the pipe. N/A Cross Road Started 9/26/21 Ended 9/27/21 No 51-500 gallons Sewer Line Blockage – A spill out a manhole located on a large grass area outside BJs in Waterford was reported by BJs property manager. Cleared the backup and cleaned the pipe. It appears that non-flushable materials are being discharged into the collection system. N/A Town of Waterford 2024 Annual Report Page 9 of 30 Permit Number GSM000023 Barton & Loguidice, LLC Location (Lat long/ street crossing /address and receiving water) Date and duration of occurrence Discharge to MS4 or surface water Estimated volume discharged Known or suspected cause / Responsible party Corrective measures planned and completed (include dates) Sampling data (if applicable) SMH 15-18A located at the corner of Uncas Ave and Rt 32 Started 8/23/24 Ended 8/23/24 Yes – majority of discharge went to the ground ~1000 gallons Blockage prohibiting discharge from surrounding properties including fats, oils and grease and rags/wipes. Cleared the clog with jet rodder. Conduct aggressive preventative maintenance program cleaning and camera’ing 10-20% of the system annually, including areas of low slope. Increasing FOG awareness literature and creating a marketing campaign surrounding it for all users. N/A 3.4 Provide a summary of actions taken to address septic failures during the Reporting Period using the table below. Method used to track illicit discharge reports Location and nature of structure with failing septic systems Actions taken to respond to and address the failures Impacted waterbody or watershed, if known Dept. / Person responsible Septic Installation Log 985 Vauxhall St. Ext. Failing septic system Repair entire system Unknown Ledge Light Health District Septic Installation Log 18 Maple Rd. Failing septic system Repair 3 bedroom home w/ tank and leaching field Unknown Ledge Light Health District Septic Installation Log 49 Gilead Rd Failing septic system New tank & d box no failure Unknown Ledge Light Health District Septic Installation Log 123 Bloomingdale Rd Failing septic system Tank and leaching field repair for 2 BR home Unknown Ledge Light Health District Septic Installation Log 46 Gurley Rd. Failing septic system Repair tank only Unknown Ledge Light Health District Septic Installation Log 2 Mary Butler Dr Failing septic system Tank replacement only Unknown Ledge Light Health District Septic Installation Log 88 Dayton Rd Failing septic system Leaching field replacement only Unknown Ledge Light Health District Septic Installation Log 114 Dayton Rd Failing septic system 10 bedroom multi-family home repair Unknown Ledge Light Health District Septic Installation Log 102 Bloomingdale Rd Failing septic system Tank replacement only Unknown Ledge Light Health District Septic Installation Log 102 Bloomingdale Rd Failing septic system Repair -Tank only Unknown Ledge Light Health District Septic Installation Log 7 Doyle Rd Failing septic system Tank only replacement Unknown Ledge Light Health District Town of Waterford 2024 Annual Report Page 10 of 30 Permit Number GSM000023 Barton & Loguidice, LLC 3.5 Briefly describe the method and effectiveness of said method used to track illicit discharge reports. Currently, phone calls and emails are received by the Department of Public Works from citizen’s reporting possible illicit discharges. The Town will continue tracking illicit discharges using an excel table. 3.6 IDDE reporting metrics Metrics Estimated or actual number of MS4 outfalls 428 Estimated or actual number of interconnections 21 Outfall mapping complete ~99% - Substantially complete Interconnection mapping complete ~99% - Substantially complete System-wide mapping complete (detailed MS4 infrastructure) ~99% - Substantially complete Outfall assessment and priority ranking 428 outfalls have initial rankings Dry weather screening of all High and Low priority outfalls complete 416 of 428 Catchment investigations complete 10 investigations were initiated and are on-going Estimated percentage of MS4 catchment area investigated Approximately 5% 3.7 Briefly describe the IDDE training for employees involved in carrying out IDDE tasks including what type of training is provided and how often is it given (minimum once per year). An MS4 and IDDE training program was developed for presentation to all Town personnel that may come into contact with stormwater or that may review applications and plans that impact stormwater quality. Typically, this training is conducted on an annual basis for members of Public Utility, Board of Education, Department of Public Works, Parks and Recreation, Police Department, and Fire Department. Many IDDE topics are discussed during the Town’s annual SPCC and SWPPP training events. B&L provided an in-person training event with members of Public Utility, Department of Public Works, and Parks & Recreation on the general topics of the MS4 and IDDE program and the annual SPCC and SWPPP on December 17, 2024. Town of Waterford 2024 Annual Report Page 11 of 30 Permit Number GSM000023 Barton & Loguidice, LLC 4. CONSTRUCTION SITE RUNOFF CONTROL (Section 6(a)(4) / page 25) 4.1 BMP Summary BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 4-1 Implement, upgrade, and enforce land use regulations or other legal authority to meet requirements of MS4 general permit (Due 7/1/20) Complete P&Z updated the Subdivision and Zoning Regulations to incorporate LID, green infrastructure, and stormwater design requirements. B&L, the Town’s consultant, evaluated the Town’s land use regulations and provided recommended updates. Review and update the regulations to be consistent with the requirements of the permit. Planning April 2018 The Town periodically reviews its stormwater management regulations and makes revisions, if necessary, to meet MS4 general permit requirements. 4-2 Develop/Implement plan for interdepartmental coordination in site plan review and approval (On-going) Complete Site applications are forwarded to Town Officials for review and comment during application process. Plans are not signed by commission until all departments have signed off on project plan. Document Current Procedure Planning Jul 1, 2017 On-going 4-3 Review site plans for stormwater quality concerns (On-going) Complete Commercial and residential site plans involving greater than 0.5 acre of land disturbance were reviewed for stormwater quality control measures. Continue to review all design plans for consistency with town and state guidelines for erosion and sediment control. Planning Jul 1, 2017 On-going Application review checklists have been revised to include stormwater management regulation requirements 4-4 Conduct site inspections (On-going) Complete Zoning and Inland Wetland enforcement staff verify site development practices are in accordance with approved plans. Planning staff employ an inspection checklist to document compliance and to identify measures requiring repair/additional control measures. Inspections occur after every significant rainfall event. Document Inspections Performed Continue existing program of construction inspections. Planning Jul 1, 2017 On-going Town of Waterford 2024 Annual Report Page 12 of 30 Permit Number GSM000023 Barton & Loguidice, LLC BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 4-5 Implement procedure to allow public comment on site development (On-going) Complete All agendas and minutes are noticed in compliance with State requirements for public notice. Public hearings announced in newspaper. Complaints regarding land-disturbance are forwarded to Planning and Development Department. Document Public Comments Planning Jul 1, 2017 4-6 Implement procedure to notify developers about DEEP construction stormwater permit (On-going) Complete Town agencies notify developers of stormwater requirements. When applicable, developers submit notification of registration to State. P&Z application checklist was revised to require applicant’s determination if a Construction Stormwater GP is required. Update application forms to include determining if Construction Stormwater GP is required. Updated webpage. Planning Jul 1, 2019 A note was added to the website regarding need for a Construction Stormwater GP: https://www.waterfordct.org/426/ Stormwater-Regulations 4.2 Describe any Construction Site Runoff Control activities planned for the next year, if applicable. Continue to update land use regulations to improve compliance with MS4 General Permit. Continue to review all design plans for consistency with Town and State guidelines for erosion and sediment control. Continue existing program for construction inspections. Continue to follow all State public notice and hearing requirements and follow up on all comments and complaints received. Town of Waterford 2024 Annual Report Page 13 of 30 Permit Number GSM000023 Barton & Loguidice, LLC 5. POST-CONSTRUCTION STORMWATER MANAGEMENT (Section 6(a)(5) / page 27) 5.1 BMP Summary BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 5-1 Establish and/or update legal authority and guidelines regarding LID and runoff reduction in site development planning (Due 7/1/22) Complete P&Z updated the Subdivision and Zoning Regulations to incorporate LID, green infrastructure, and stormwater design requirements. B&L, the Town’s consultant, evaluated the Town’s land use regulations and provided recommended updates. Review and update the regulations to be consistent with the requirements of the Permit. Planning April 2018 The Town periodically reviews its stormwater management regulations for effective LID implementation and run- off reduction. 5-2 Enforce LID/runoff reduction requirements for development and redevelopment projects (Due 7/1/22) Complete Section 25.6 Stormwater Management regulations require LID, run-off control and stormwater treatment to the maximum extent practicable for all new development >0.5 acre. B&L, the Town’s consultant, evaluated the Town’s LID/runoff reduction requirements and provided recommended updates. Review current regulations to identify and, where appropriate, reduce or eliminate existing regulatory barriers to implementation of LID and runoff reduction practices to the MEP. Planning April 2018 On-Going The Town periodically reviews its regulations requiring run-off reduction for development and redevelopment projects and revises requirements affecting impervious surface area, as needed. 5-3 Identify retention and detention ponds in priority areas (Due 7/1/20) Substantially Complete Known ponds under the control of the Town have been mapped. In 2021 through 2024, B&L continued to review the mapping and made updates to the ponds, as necessary. Inventory Town retention/ detention ponds Department of Public Works Mar 23, 2018 Town of Waterford 2024 Annual Report Page 14 of 30 Permit Number GSM000023 Barton & Loguidice, LLC BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 5-4 Implement long- term maintenance plan for stormwater basins and treatment structures (On-going) Complete/ On-going Inspection reports and water quality monitoring for stormwater and treatment basins continue to be completed. Town maintains an inventory of required stormwater management control practices for completed site developments. Documentation of inspection and maintenance of stormwater treatment is requested as part of land use and building permit approvals. Town employees receive instruction on maintenance for rain gardens, stormwater detention /treatment systems. All basins and structures are inspected and maintained at least annually. Develop a maintenance plan for retention/ detention ponds and stormwater treatment structures that it owns or over which it holds an easement or other authority and that are located in the Permittee’s priority areas to ensure their long-term effectiveness. Planning Feb 15, 2018 On-going A plan for routine inspections and maintenance for the Town’s basins and structures is in place. In 2021, B&L conducted stormwater structure inspections for all ~40 stormwater treatment structures identified. Based on the inspections conducted, B&L provided the Town with a cost spreadsheet for budgeting annual maintenance. 5-5 DCIA mapping (Due 7/1/20) Substantially Completed The DCIA for the priority areas have been calculated using the available impervious cover layers. Calculate DCIA Department of Public Works Jul 1, 2020 On-going The DCIA mapping will be updated, as necessary, to include retrofit, development and development projects. 5-6 Address post- construction issues in areas with pollutants of concern Not Started None Document issues identified and address. Prioritize areas for the DCIA retrofit program under MCM-6 Department of Public Works On-going 5.2 Describe any Post-Construction Stormwater Management activities planned for the next year, if applicable. Continue to periodically review and update land use regulations for compliance with MS4 General Permit. Continue to enforce LID/runoff reduction requirements for development and redevelopment projects. Review Stormwater Structures Management Plan for areas of optimization. Continue to conduct inspections and water quality monitoring for stormwater and treatment basins. Continue updating the DCIA mapping, as necessary. Town of Waterford 2024 Annual Report Page 15 of 30 Permit Number GSM000023 Barton & Loguidice, LLC 5.3 Post-Construction Stormwater Management reporting metrics Metrics Baseline (2012) Directly Connected Impervious Area (DCIA) 240 acres DCIA disconnected (redevelopment plus retrofits) Unknown acres this year / acres total Retrofits completed Unknown # DCIA disconnected TBD % this year / % total since 2012 Estimated cost of retrofits Unknown $ Stormwater treatment structures identified (including detention/retention ponds, oil water separators, hydrodynamic separators, green infrastructure, etc.) 56 total treatment structures 16 retention/detention ponds # total 5.4 Briefly describe the method to be used to determine baseline DCIA. To calculate the baseline DCIA for the Town of Waterford, the Town used the process found on the CT NEMO website. CT NEMO developed 5 formulas to calculate the DCIA and Impervious Cover (IC) independently for each basin in the Town using the percent DCIA for the basin with the state DCIA removed from the equation. The Town took the formulas and created a bell curve to input the calculated percent of DCIA for each basin and calculate the total DCIA and IC amounts for the Town. Each basin value was added together to create the baseline for the DCIA and IC for the Town. 6. Pollution Prevention/Good Housekeeping (Section 6(a)(6) / page 31) 6.1 BMP Summary BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 6-1 Develop/implement formal employee training program (On-going) Complete/ On-going A training program has been developed. B&L provided an in-person training event with members of Public Utility, Department of Public Works, and Parks & Recreation on the general topics of the MS4 and IDDE program and the annual SPCC and SWPPP on December 17, 2024. Track Town employee training DPW, Parks and Rec., Utility Commission, Waterford Buildings and Grounds, and Waterford BOE. On-going 6-2 Implement MS4 property and operations maintenance (On-going) Complete/ On-going Salt piles are stored under cover and on impervious surfaces. Town industrial stormwater discharges are monitored. Vehicle maintenance is performed undercover. Continue the pattern of MS4 property and operations maintenance in accordance with the Permit. Depart of Public Works, Police Depart, Fire Depart, Board of Ed, Parks and Rec Jul 1, 2017 On-going The Town periodically reviews current practices and looking for areas for optimization. Town of Waterford 2024 Annual Report Page 16 of 30 Permit Number GSM000023 Barton & Loguidice, LLC BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 6-3 Implement coordination with interconnected MS4s In Progress Through the outfall identification process, the Town has identified several interconnections with the neighboring towns/cities & the DOT. Coordinate pollution prevention activities with interconnected MS4s. Department of Public Works On-going As new data is collected at interconnections, the Town will provide that data to the neighboring towns/cities & the DOT. 6-4 Develop/implement program to control other sources of pollutants to the MS4 Substantially Complete The Town has identified industrial and commercial facilities not registered under DEEP’s Industrial Stormwater General Permit and Commercial Stormwater General Permit, respectively. Educational brochures were mailed to the industrial facilities in 2021, notifying them of their potential obligation to register. Develop and implement a program to control the contribution of pollutants to the MS4. Department of Public Works Aug 2021 Spring 2022 Commercial brochures will be mailed to facilities, notifying them of their potential obligation to register. 6-5 Evaluate additional measures for discharges to impaired waters* On-going The Town prohibits the feeding of waterfowl to help manage populations at Town ponds. Identify potential project locations. Department of Public Works N/A 6-6 Track projects that disconnect DCIA (On-going) In Progress A table was created for tracking disconnected DCIA. The Town continues filling out the DCIA tracking table with completed development projects dating back to 2012. B&L reviewed all Town approved projects since 2012 to identify all potential projects completed during that time. B&L created a DCIA tracking form that is to be completed for each new project. Annually track acreage of DCIA disconnected as a result of redevelopment/ retrofit projects within the Town. Department of Public Works Jul 1, 2019 On-going The Town will continue to maintain records of all disconnected DCIA projects. 6-7 Implement infrastructure repair/ rehab program (Due 7/1/21) On-going In 2024, new catch basin tops were installed at various locations in the Mackenzie Road Neighborhood prior to paving. Additionally, new catch basin tops were installed at Quarry Rd, Leary Drive and Goshen Road Prior to paving. Identify MS4 structures to repair, rehabilitate, or upgrade to reduce pollutant discharge. Department of Public Works December 2022 On-going The Town periodically reviews current practices and to identify areas for optimization. Town of Waterford 2024 Annual Report Page 17 of 30 Permit Number GSM000023 Barton & Loguidice, LLC BMP Status Activities in current reporting period Measurable goal Department/ Person Responsible Date completed/ projected Additional details 6-8 Develop/implement plan to identify/ prioritize retrofit projects (Due 7/1/20) In Progress With the assistance of B&L, Town- owned sites with the greatest amount of impervious area were identified as potential candidates for retrofit projects. Develop a retrofit project plan to identify and prioritize DCIA connection projects Department of Public Works December 2023 On-going The Town will continue to identify and prioritize potential projects for the Retrofit Program to the maximum extent practicable. 6-9 Implement retrofit projects to disconnect 2% of DCIA (Due 7/1/22) In Progress With the assistance of B&L, Town- owned sites with the greatest amount of impervious area were identified as potential candidates for retrofit projects. Implement retrofit projects Planning Jul 1, 2023 On-going The Town will continue to identify and prioritize potential projects for the Retrofit Program to the maximum extent practicable. 6-10 Develop/ implement street sweeping program (On-going) Complete/ On-going Typically, all Town-owned roads are swept every year, starting after the last snow melt. In 2024, the Town continued their typical sweeping program. Continue sweeping all streets at least once per year, as soon as possible after snowmelt. Department of Public Works Jul 1, 2017 On-going The Town periodically reviews current practices to identify areas for optimization. 6-11 Develop/ implement catch basin cleaning program (On-going) Complete/ On-going The Town cleans approximately 1/3 of all of the catch basins annually. Continue current maintenance program in accordance with the Permit. Department of Public Works Jul 1, 2019 On-going The Town periodically reviews current practices to identify areas for optimization. 6-12 Develop/ implement snow management practices (Due 7/1/18) Complete/ On-going The Town follows the DEEP Guidelines on snow management, to the maximum extent practicable. The Town streets and municipal lots were plowed, as necessary. Roads were treated with salt (no sand), as necessary. Develop/implement snow management practices Department of Public Works Jul 1, 2017 On-going The Town periodically reviews current practices to identify areas for optimization. 6.2 Describe any Pollution Prevention/Good Housekeeping activities planned for the next year, if applicable. Conduct annual MS4 training events. Continue to periodically review MS4 property and operations maintenance practices for areas of optimization. Notify commercial facilities of their requirements to register under the Industrial Stormwater GP. Continue tracking disconnected DCIA using the table created. Continue efforts to identify and prioritize potential projects for the Retrofit Program to the maximum extent practicable. Continue street sweeping, catch basin cleansing and snow management practices. Town of Waterford 2024 Annual Report Page 18 of 30 Permit Number GSM000023 Barton & Loguidice, LLC 6.3 Pollution Prevention/ Good Housekeeping reporting metrics Metrics Employee training provided for key staff Yes – 12/17/24 Street sweeping Curb miles swept ~200 miles were swept in 2024 Volume (or mass) of material collected ~100 CY Catch basin cleaning Total catch basins in priority areas ~3,000 Total catch basins in MS4 ~3,000 Catch basins inspected 800 Catch basins cleaned 800 Volume (or mass) of material removed from all catch basins ~125 CY Volume removed from catch basins to impaired waters (if known) Unknown Snow management Type(s) of deicing material used Salt Total amount of each deicing material applied ~1,150 tons Type(s) of deicing equipment used Truck/spreader Lane-miles treated 242 miles Snow disposal location N/A Staff training provided on application methods & equipment Yes – as necessary Municipal turf management program actions (for permittee properties in basins with N/P impai