The CT NEMO (Nonpoint Education for Municipal Officials) at UConn and the University of New Hampshire are very pleased to present a new database illustrating examples of innovative stormwater best management practices for the New England states.

You can acess the database through the UNH Stormwater Center at:

    http://www.unh.edu/erg/cstev/

  CLICK HERE FOR DEP STORMWATER INFORMATION

 

 

Town of Watertown

Connecticut

Stormwater Management Plan

2007 Annual Report

Contents

Executive Summary.................................................................... 2

Background of the Phase II Program....................................................................... 2

Storm Water Management Plan......................................... 2

Existing Programs...................................................................... 2

Implementing the Stormwater Management Plan.. 2

Reporting and Record Keeping Requirements......................................................... 2

Registration................................................................................................................ 2

Control Measure 1: Public Education & Outreach........................... 2

Newspaper Insert on Stormwater............................................................................. 2

Town Website............................................................................................................... 2

Watertown Library...................................................................................................... 2

A Presentation for the General Public...................................................................... 2

A Presentation for Businesses................................................................................... 2

Plan Brochure............................................................................................................. 2

Annual Update.............................................................................................................. 2

Control Measure 2: Public Participation & Involvement................................. 2

Comply with State Public Notification Guidelines.................................................... 2

Plan Development and Maintenance........................................................................... 2

Watertown Stormwater Management Program....................................................... 2

Streamwalk Program.................................................................................................. 2

Town-wide Volunteer Opportunities.......................................................................... 2

Sponsor Community Participation Event................................................................... 2

Control Measure 3: Illicit Discharge Detection & Elimination..................... 2

Mapping Outfalls......................................................................................................... 2

Monitor Six Representative Outfalls........................................................................ 2

Enacting Ordinance...................................................................................................... 2

Conduct Dry Weather Outfall Screening.................................................................. 2

Control Measure 4: Construction Site Runoff Control................................ 2

Review of Land Use Regulations................................................................................. 2

Training......................................................................................................................... 2

Inspect Erosion and Sediment Controls.................................................................... 2

Control Measure 5:Post-construction Stormwater Management in New Development & Redevelopment............................................................................................................... 2

Review and Update of Land Use Regulations............................................................. 2

CT DEP Workshop....................................................................................................... 2

Adopt the 2004 CT DEP Storm Water Quality Manual Guidelines.......................... 2

Inspection Program...................................................................................................... 2

GIS................................................................................................................................. 2

Control Measure 6: Good Housekeeping...................... 2

Training Program......................................................................................................... 2

Street Sweeping........................................................................................................... 2

Sidewalk Sweeping....................................................................................................... 2

Grit Separator Cleaning............................................................................................. 2

Catch Basin Cleaning................................................................................................... 2

Minimize Impacts from Municipal Vehicle Washing...................................................... 2

Minimize Impacts from Municipal Vehicle Maintenance.............................................. 2

Public Grounds Maintenance...................................................................................... 2

Detention Basin Maintenance...................................................................................... 2

Permit Requirements................................................................. 2

Updating the Stormwater Management Plan........................................................ 2

Monitoring....................................................................................................................... 2

Reporting Requirements.............................................................................................. 2

Record Keeping Requirements................................................................................... 2

Other Requirements...................................................................................................... 2

Permit Eligibility........................................................................................................... 2

Receiving Waters........................................................................................................... 2

Impaired Water Bodies.................................................................................................. 2

Appendices

A Part A Stormwater Registration

B Map of Urbanized Area and Outfalls

C General Permit

D Sample Results

E Summary of Proposed 2007 Activities

F Copies of Articles, Inserts and Other Materials


Executive Summary

This document presents 2007 Annual Report required by the Stormwater Management Plan (SWMP) for the Town of Watertown. The SWMP was developed to meet the requirements of the Connecticut Department of Environmental Protection’s (CT DEP) General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems (MS4s). The DEP developed this general permit for the State of Connecticut to comply with the United States Environmental Protection Agency’s (EPA) National Pollution Discharge Elimination System’s (NPDES) Phase II regulations. Appendix A contains a copy of the Town of Watertown’s Part A registration. Appendix B includes a map showing the Town of Watertown and outfalls. Appendix C contains a copy of the CT DEP General Permit.

Background of the Phase II Program

1.1

In 1987, the EPA amended the Clean Water Act (CWA) to require a two-phase national program to address water pollution from stormwater. Phase I, promulgated in 1990, addressed stormwater discharges in approximately 900 of the nation’s largest cities.

Phase II of the stormwater program was published in the Federal Register on December 8, 1999. The Phase II regulations require operators of MS4s located in urbanized areas with populations of fewer than 100,000 people to obtain a permit for their stormwater discharges. In Connecticut, the CT DEP issues permits. A map in Appendix B shows the urbanized and non-urbanized portions of the Town as well as outfalls.

As determined by the 2000 census, a large portion of the Town of Watertown is in an urbanized area and therefore, the town must submit a two-part registration for coverage under the general permit. Part A was due April 9, 2004 and provides general information about the municipality and names of the receiving waters to which the storm water system discharges. Part B was due July 9, 2004 and includes a stormwater management plan that describes best management practices (BMPs) and measurable goals for each of the six minimum control measures. At least 30 days prior to submitting Part B of the registration, the town must make a draft copy of the Stormwater Management Plan available for public review and comment. A public hearing was held for the plan on October 17, 2004. The thirty (30) day public comment period expired November 16, 2004.

Stormwater Management Plan

The central focus of the DEP General Permit for the Discharge of Stormwater from MS4s is the Stormwater Management Plan (SWMP). In order for the town to meet the regulations, it has developed an SWMP. Each permittee designs its own SWMP with the goal of reducing the discharge of pollutants from the MS4 to the maximum extent practicable to protect water quality.

To meet the “maximum extent practicable” standard, the Town must develop and implement Best Management Practices (BMPs) for the following six minimum control measures:

· Public Education and Outreach

· Public Participation/Involvement

· Illicit Discharge Detection and Elimination

· Construction Site Stormwater Runoff Control

· Post-Construction Stormwater Management in New Development and Redevelopment

· Pollution Prevention/Good Housekeeping for Municipal Operations

The BMPs are the core of the SWMP and are described in Sections 1 through 6 of this document. A summary of the BMPs and the actions undertaken to comply with the SWMP is included later in the report as well as a summary of the activities proposed for next year (2008).


Existing Stormwater Programs in the Town of Watertown

The Town of Watertown has many existing stormwater programs and BMPs that are being used to fulfill the Stormwater Phase II requirements. These include:

  • Public Education and Outreach – there is a high volume of information available to the public in various town offices, especially Public Works and the Land Use office and there were press releases and website postings regarding each of the three regional Household Hazardous Waste collections that the Town participated in and the two electronics collections in the area that were conducted by CRRA;
  • Public Participation and Involvement – hosting and participation in the three regional Household Hazardous Waste Collections, participation in annual town-wide clean-up days, working with local Scout groups and industries to mark storm drains and distribute educational materials
  • Illicit Discharge Detection and Elimination – planning and acquiring equipment for the mapping of existing storm drainage system; there is an ordinance requiring permits and inspections to connect to the sanitary collection system and tying roof leaders and sump pumps into the town storm drainage system, and working with Torrington Area Health District on inspecting and eliminating reported cross connections in response to complaints;
  • Construction Site Runoff Control – The Town of Watertown regulations currently require sedimentation and erosion control plans to be submitted and complied with which are based upon the “Connecticut Guidelines for Sediment and Erosion Control”. The Zoning Department currently reviews all site plans for conformance with these regulations and perform periodic site inspections. The Town Engineer and Wetlands Enforcement Officer have both received training to become Certified Professional Erosion and Sediment Control Specialists by the Connecticut Department of Environmental Protection (CT DEP) (examination pending) and have made numerous site visits to ensure compliance with the regulations. Typically site visits are conducted weekly. Larger subdivisions are required to submit weekly reports on sedimentation and erosion control measures;
  • Post–Construction Runoff Control – the Planning and Zoning Commission and the Inland Wetland and Watercourses Commission have required stormwater BMPs in recently constructed subdivisions and site plans to remove at least 80% of the Total Suspended Solids (TSS), and the commissions have required specific landscaping and drainage systems to prevent erosion and excessive stormwater runoff in developed areas
  • Pollution Prevention/Good Housekeeping – the town swept all streets and sidewalks at least once this year and upon request for specific complaints or concerns, stores all road sand and salt under covers, covers all municipal dumpsters not in active use, washes all highway department vehicles on a designated wash pad that discharges through an oil/water separator, minimizes chemical and hazardous material use in the maintenance facilities, properly disposes of snow and ice away from water bodies, approximately XXX catch basins were cleaned or repaired in accordance with the master roadway maintenance plan for the town or in response to complaints, stores used oil and antifreeze in designated areas that is removed by a licensed waste hauler, cleans and maintains detention basins and stormwater BMP structures as needed, collects waste oil antifreeze, batteries and other materials for free at the transfer station, and participates in the three Household Hazardous Waste Collection days that are sponsored annually by the Central Naugatuck Valley Council of Governments as well as issued press releases about the CRRA electronics collections.


Implementing the Stormwater Management Plan

This document describes the stormwater BMPs that the Town of Watertown will complete during the five (5) year permit period, through January 8, 2009 and the actual measures that were taken to implement them. Because the town of Watertown has submitted its registration to the DEP, the Town has begun implementing the plan. Because the plan includes modifications to current municipal practices, coordination amongst several town departments and interaction with the public, activities will be implemented over a five (5) year permit term. Everyone living, working and playing in Watertown will implement the stormwater management plan document. The Town’s Stormwater Management Program will coordinate, oversee, update and report on implementation of all six of the storm water control measures that are required by the general permit (see Appendix C). The Director of Public Works or his /her designee will be the “stormwater coordinator” for the Phase II SWMP. Responsibilities include coordinating tasks among town departments, completing this annual report to the DEP and generally making sure that the BMPs listed in the SWMP are completed. Details of how the Town plans to implement each measure for the life of this permit (5 years) appear in this report. Details of how the Town implemented each measure in 2007 (permit year four) are included here. It is important to note that the Town is legally required to complete all of the BMPs listed in the general permit registration. The Town may be considered in violation of its permit if it fails to complete any of the BMPs.

Reporting and Record Keeping Requirements

The CT DEP requires that the permittee keep records required by this permit for at least five (5) years after the permit expiration, or longer at the Commissioner’s request. An annual report must be submitted to the DEP by January 1st of every year of the permit term, commencing January 1, 2005. This annual report has to include the status of compliance, an assessment of the appropriateness of the identified best management practices and progress towards achieving the implementation dates and measurable goals, a summary of stormwater activities to be undertaken during the next year, changes in any measurable goals, and monitoring results from six (6) representative outfalls. Monitoring results are contained in Appendix D.

Registration

The following pages are the registrations that have been filed with the DEP. The form for Part A was due on April 9, 2004. Part B was due on July 9, 2004. These forms summarize the SWMP, and are the only paperwork required by the DEP.


Control Measure 1: Public Education & Outreach

The Town will “implement a public education program to distribute educational materials to the community or conduct equivalent outreach activities about the impacts of stormwater discharges on water bodies and the steps that the public can take to reduce pollutants in stormwater runoff”[1]. Educating the public about the importance of stormwater management can help lead to greater support for and compliance with the Stormwater Management Plan.

1-1 Newspaper Insert on Stormwater – A short article discussing stormwater and how to alleviate its impacts will be included in an insert in our local newspaper “Town Times”. Potential articles include a description of the hydrologic cycle, the impacts of increased development, pollutants from developed areas (including lawns), and impacts to local water bodies from stormwater pollution. In accord with Control Measure 3, one of the article/brochure topics will inform the public about the hazards associated with improper waste disposal and illegal discharges to the MS4. Is it working? The Town will keep track of comments and inquiries (include an email address and phone number where these can be easily tracked) and use this information to assess its effectiveness annually. The Public Works Department will develop the insert in cooperation with the Zoning Department.

Cost: 8 hours of staff time to develop annual article

Measurable Goal: Article will be distributed/published annually. No recorded comments or inquiries were documented.

Implementation: Submitted by technical writer for December 2006 and 2007 publications (copy attached). In addition, an extensive article was published in Waterbury Republican American in December 2007 requesting public involvement in identifying blighted areas or dumping.

Appropriateness of Measure: This measure is still considered appropriate in future years.

1-2 Town WebsiteThe Town will link to the Connecticut Departments of Transportation and Environmental Protection websites, which contain information on stormwater management. Discussion will be included of stormwater management issues. Website updates will be performed annually and this plan will be posted on the web, as well as the annual reports to the DEP. Is it working? The Town will keep track of comments and inquiries (include an email address and phone number where these can be easily tracked) and use this information to assess its effectiveness annually. The Town will initiate the website links.

Cost: 16 hours of staff time per year

Measurable Goal: Number of comments and inquiries received and annual website update performed.

Implementation: Links to other sites were completed in 2006. Annual report and plan was posted to website. No counter to track number of “hits” has been installed on this web page. Town web page has been updated.

Appropriateness of Measure: This measure is still considered appropriate in future years.

1-3 Watertown LibraryThe town has a library on Main Street and a branch on Davis Street. The library is available to the public. The Town will add information to the library as appropriate in the form of posters, literature handouts and display boards. Is it working? The town will document and report on number of posters and boards and number of flyers distributed.

Cost: 24 hours of staff time to develop and present program.

Measurable Goal: Number of presentations and attendees

Implementation: Poster boards were developed and left at the Main Library and Oakville Library for public displays with brochures. The number of attendees or persons reading displays is unknown. Approximately 200 brochures were taken from each display, which have been in place for almost 5 months.

Appropriateness of Measure: This measure is still considered appropriate in future years.

1-4 A Presentation for the General PublicThe Pomperaug River Watershed Coalition (PRWC) conducts various programs throughout the year on stormwater management and related topics in the Central Naugatuck Valley Region. Any Watertown resident is invited to attend. The PRWC will develop the presentation. The Town will review the content. The presentation will be video taped for future broadcast on public access television. The NCD has also conducted educational seminars as well as the University of Connecticut, through NEMO. Is it working? The PRWC will document and report on attendees and summarize any comments. The council of governments is anticipating supplying the Town with an EPA video on stormwater that will be made available in the libraries and provide to the local government Access channel on cable television.

Cost: 24 hours of staff time to develop and present program

Measurable Goal: Number of presentations and attendees

Implementation: In lieu of a formal presentation, an exhibit was developed and used at the Watertown Fall Festival held at Veteran’s Park. Samples of environmentally friendly cleaners were displayed and given out, brochures and poster boards were displayed and two staff members was present all day to answer questions and give out information about the program. Public response and feedback were good, so this event is scheduled to be repeated in upcoming years instead of the original presentation discussed above.

Appropriateness of Measure: This measure is still considered appropriate in future years. New ZEO to work with PRWC.

1-5 A Presentation for Businesses -The Public Works Department will develop a presentation that explains nonpoint source pollution and stormwater management techniques and illegal discharges to the municipal stormwater system. This presentation may be given to the local Chamber of Commerce, Rotary Club or other business organizations. The presentation may be video taped for future broadcast on public access television. Is it working? The Town will document and report on attendees and summarize any comments.

Cost: 12 hours of staff time to develop and present program

Measurable Goal: Number of attendees and presentations

Implementation: Presentation to Watertown Lions Club was performed on September 25, 2007 at their October meeting held in conjunction with the New Milford Club. Approximately 45 people were in attendance. It was not videotaped; however a newspaper article was published. An offer of a presentation in 2008 was made to the Watertown Oakville Chamber of Commerce.

Appropriateness of Measure: This measure is still considered appropriate in future years.

1-6 Plan BrochureThe Town will develop a brochure that explains nonpoint source pollution, the municipal stormwater management system, stormwater management techniques and illegal discharges to the municipal stormwater system, using Department of Transportation literature. The Town will review the content. The brochure will be made available in the library, town hall, and other public places and be posted on the Town website. Is it working? The Town will keep track of comments and inquiries (include an email address and phone number where these can be easily tracked) and use this information to assess its effective- ness annually.

Cost: 20 hours of staff time for initial development, 40 hours of staff time to prepare subsequent annual articles and $0.20 per brochure for printing, 5000 households ($1,100).

Measurable Goal: Develop brochure in second year. Number of brochures taken by public.

Implementation: Two more brochures developed in 2007 to supplement the 2006 brochures and 5,000 of each distributed through schools, libraries, town offices and in public forums during 2007. Two more brochures are scheduled to be developed in the next year. The Committee decided at its fall 2007 meeting to try to gear the pamphlet to children for the upcoming year. Target release dates for 2008 are Earth Day in the spring and the Fall Festival in the autumn. No counter is currently installed on the town website to track inquiries on the brochures, which were also place on the website. A revised citizen response System is being developed for the tow which will include a Stormwater section.

Appropriateness of Measure: This measure is still considered appropriate in future years.

1-7 Annual Update of the Stormwater Management Plan to the Town CouncilAnnually, the Director of Public Works will provide an informational update to the Town Council on the Stormwater Management Plan. Potential topics include ongoing and upcoming events.

Cost: 16 hours of staff time to prepare and present the SWMP update.

Measurable Goal: Annual update of the SWMP at a Town Council meeting timed to coincide with the annual report to the DEP.

Implementation: Report to Public Works Subcommittee of Town Council on January 14, 2008 and entire Town Council on January 21, 2008. A draft report was sent to Planning and Zoning Commission and Inland Wetlands and Watercourses Commission for discussion. A press release was prepared indicating that report is available for review and comment during the next 30 days. Subsequently the report will be posted to the Town website. This format was successfully used for last year’s report.

Appropriateness of Measure: This measure is still considered appropriate in future years.


Control Measure 2: Public Participation & Involvement

To satisfy the requirements of this measure, the Town has developed “a public involvement/participation program that includes the public in developing, implementing, and reviewing your stormwater management plan.”1 The elements of the plan are described here.

2-1 Comply with State Public Notification GuidelinesFollowing public notification guidelines, the Town will inform the public about the availability of annual reports, update opportunities, workshops and meetings. Notices will be posted on the town website, Town Hall Annex, at Town offices at 51 Depot Street, at Town Hall, at the libraries and press releases will be sent to the Waterbury Republican American newspaper and Town Times.

Cost: 16 hours of staff time annually.

Measurable Goal: Number of notifications of events per year.

Implementation: Notification done in 2004, 2005, 2006 and 2007 via website posting and press releases for both initial Plan public hearing, workshops and annual report. Copies of the 2004, 2005 and 2006 Annual Report and 2007 draft report were placed in the Watertown Library, Oakville Library and in the Town Hall, Annex, Planning & Zoning Department and Public Works Department offices.

Appropriateness of Measure: This measure is still considered appropriate in future years.

2-2 Plan Development and MaintenanceNotices will be posted in the Town Hall, 51 Depot Street and the Town Hall Annex announcing the draft plan review period and plan review period as well as annual review periods. A public workshop was held in conjunction with the regular monthly meeting of the Public Works Sub Committee of the Town Council. The initial plan preparation and annual updates will solicit input from the Planning and Zoning Commission and Inland Wetlands and Watercourses Commission.

Cost: 20 staff hours to prepare updates and participate in public workshop.

Measurable Goal: At least one posted review period per year.

Implementation: Public workshop and annual Town Council briefing done in 2007. Copies of 2007 Plan and Report sent to Planning & Zoning Commission and Inland Wetlands and Watercourses Commission. Stormwater Committee reviewed and/or modified plan at fall semi-annual meeting meeting.

Appropriateness of Measure: This measure is still considered appropriate in future years.

2-3 Watertown Stormwater Management ProgramThe Town has formed a committee to coordinate activities and monitor progress of the Stormwater Management Plan. The Committee is made up of staff representatives from the Planning Department, Board of Education, Parks Department, and Public Works Department. The Committee will meet bi-annually to discuss the progress of the plan and plan updates. The Stormwater Coordinator (Director of Public Works) will chair the committee and be responsible for ensuring the Town stays on schedule with the various BMPs listed in the SWMP.

Cost: 40 staff hours per year

Measurable Goal: Form committee within six (6) months of implementing plan and conduct at least two meetings per year.

Implementation: Committee formed and semi-annual meetings conducted. Meeting minutes from April 25, 2007 and November 14, 2007.

Appropriateness of Measure: This measure is still considered appropriate in future years.

2-4 Streamwalk ProgramThe town is evaluating the development of an annual Streamwalk for the Naugatuck River, Steele Brook and their tributaries, potentially along the proposed Watertown Greenway. The Town meets FOI requirements in its solicitation of volunteers. During the Streamwalk training participants learn about the hydrology of the watershed, nonpoint source pollution and stormwater management techniques. Each volunteer performs a physical inventory of the river and reports to the Town. Results of the surveys are summarized and included in an annual report as well as the Town website. This program may be coordinated with the annual Earth Day activities sponsored by the town as well as private company clean up efforts.

Cost : 60 staff hours per year.

Measurable Goal: Number of stream walks organized per year.

Implementation: Done in 2007 as part of the Earth Day clean-up (one).

Appropriateness of Measure: This measure is still considered appropriate in future years.

2-5 Town-wide Volunteer OpportunitiesThe Town announces volunteer opportunities on its website. In addition, the Town website will offers links and information on home stewardship directed at water resource protection. As part of this effort, the current program of working with the local Boy Scout troops will be continued. Previous efforts have involved placing stickers provided by the DEP on catch basins in the Oakville section of Town by Boy Scouts and distributing literature. The town cooperates in providing community service opportunities to the students at Taft School and the conservation Club at Watertown High School. The Town also actively cooperated with the Watertown Land Trust on conservation issues.

Cost: Included in current programs.

Measurable Goal: Organize at least one opportunity per year.

Implementation: Town-wide Clean up was done in conjunction with Earth Day 2007 activities. Activity coordinated through and by Watertown Recreation Department, which cancelled event due to inclement weather. In addition to the clean up, almost 100 deciduous and coniferous trees were distributed for planting.

Appropriateness of Measure: This measure is still considered appropriate in future years.

2-6 Sponsor Community Participation EventThe Town will hold at least two community participation events a year. The Town currently participates in the following events:

· Annual Town-wide Clean-up (in conjunction with Earth Day) – The Town Park and Recreation Department organizes a town-wide cleanup on an annual basis to coincide with Earth Day. The Public Works Department provides trucks and manpower to dispose of the collected material

· Regional Household Hazardous Waste Collection Days – The town helps plan and organize the collection days through the Central Naugatuck Valley Council of Governments. Town residents can go to any of three collection days held annually within the region. The Town will inform the public about the availability of annual reports, update opportunities, workshops and meetings. Notices will be posted on the town website, Town Hall Annex, at Town offices in 51 Depot Street, at Town Hall, at the libraries and press releases will be sent to the Waterbury Republican American newspaper and Town Times. Cost: Approximately $5,000/year

Measurable Goal: At least four events per year.

Implementation: One Town-wide clean up was scheduled and three Household Hazardous Waste collections done in 2007. In addition, two electronics-recycling events were conducted by the Connecticut Resources Recovery Authority (CRRA) which were open to Watertown residents.

Appropriateness of Measure: This measure is still considered appropriate in future years.


Control Measure 3: Illicit Discharge Detection & Elimination

To satisfy the requirements1 of this measure, the Town will:

§ Implement an ordinance or other regulatory mechanism to effectively prohibit non-stormwater discharges (illicit discharges) into the separate storm sewer system (except those exempted in the general permit, specified below) and develop sanctions to ensure compliance, to the extent allowable by state and local law (required throughout entire town);

§ Develop, implement and enforce a program to detect and eliminate existing as well as potential future illicit discharges including illegal dumping to the storm sewer system within the “urbanized area” (see map).

§ Inform public employees, businesses, and the general public of hazards associated with illegal discharges and improper disposal of waste (part of Control Measure 1) (required throughout entire town);

§ Create a storm sewer system map (minimum scale of 1”=2000’ and maximum scale of1”=100’) containing:

Ø All stormwater discharges from a pipe or conduit with a diameter of 15” or greater owned or operated by the municipality within the “urbanized area” by the end of 2005.

Ø Expand the map to identify all outfalls of 15” anywhere within Watertown by the end of 2006;

Ø Expand the map to identify all outfalls of 12” or greater that are located within an urbanized area by the end of 2007.

§ Create an associated data base for the storm sewer map that contains: Type, material, and size of conveyance, outfall or channelized flow (e.g. 24” concrete pipe); The name and Surface Water Quality Classification of the immediate surface water body or wetland to which the stormwater runoff discharges; If the outfall does not discharge directly to a named water body, the name of the nearest named water body to which the outfall eventually discharges; The name of the watershed in which the discharge is located.

§ As discussed in Section 3 (a) (2) of the general permit, the town believes that it has the following non-stormwater discharge which the permit authorizes:

o Landscape irrigation

o Irrigation water

o Lawn watering runoff

o Residual street wash water

o Uncontaminated ground water such as pumped ground water, foundation drains, water from crawl spaces, sump pumps and footing drains

o Naturally occurring discharges such as rising ground waters, uncontaminated ground water irrigation, springs, diverted stream flows and flows from riparian habitats and wetlands.

The town believes that these non-stormwater discharges are not contaminated and are appropriate for the MS4.

3-1 Mapping Outfalls - In this third year of the permit the Town will begin to focus on mapping all stormwater discharges from a pipe or conduit with a diameter of 15” or greater owned or operated by the municipality within the “urbanized area”. The end of 2005 completed this.

Cost: 200 man-hours of staff time/year until complete.

Measurable Goal: Outfall map created and updated each year as outfalls are mapped or as new construction is implemented.

Implementation: Planning began in 2004. GIS system was started in FY 2004-2005 budget year and hand-held GPS units have been obtained through Valley Council of Governments to assist in mapping efforts. Interns located outfalls within urbanized area in 2005 and 2006 and a GIS map was created (copy attached). Data was collected on outfall location, size, type, condition and any unusual or suspicious outflows were noted for further evaluation. Map is currently on file at the Central Naugatuck Valley Council of Governments and is anticipated to be posted on the town website as one of the GIS layers. It should be noted that the aerial mapping conducted by the town has located a large percentage of catch basins in the roadways, which will be incorporated into the mapping system.

Appropriateness of Measure: This measure is still considered appropriate in future years.

3-2 Monitor Six Representative OutfallsThe CT DEP requires the evaluation of 6 representative outfalls annually based on the predominant land use in the area that contributes stormwater to the outfall starting in 2004. The permit requires that two outfalls be monitored for a representative industrial, commercial and residential area. The same outfalls must be monitored each year unless a written request is submitted to the Commissioner describing an alternative sampling plan of equivalent or greater scope. The grab samples must be taken during the first six hours of a rain event of at least 0.1 inches. Each sample will be tested for the following:

· pH;

· Hardness;

· Conductivity;

· Oil and grease;

· Chemical oxygen demand;

· Turbidity;

· Total suspended solids;

· Total phosphorous;

· Ammonia;

· Total Kjeldahl nitrogen;

· Nitrate plus nitrite nitrogen; and

· E. coli

Uncontaminated rainfall ph will be measured when the runoff sample is taken. Date, temperature, time of start of discharge, tome of sampling and inches of rainfall will be recorded.

The Watertown Public Works Department will be responsible for ensuring that collecting and analyzing the samples is performed. ACT laboratory will be collecting and testing the samples. Results will be reported and available in our annual report. The following locations will be sampled as part of this program:

Residential – Beach Avenue and Nova Scotia Road

Circuit Avenue

Commercial – Knight Street

New Wood road – off of Route 63, behind Velocity Printers

Industrial - Echo Lake Road – Between Buckingham Road and Park Road

Cost: $1,920.00/year for collection and analysis and four (4) hours of staff time for reporting.

Measurable Goal: Six outfalls sampled annually.

Implementation: Completed for 2007. Results are attached in Appendix D.

Appropriateness of Measure: This measure is still considered appropriate in future years.

3-3 Enacting OrdinanceCurrently there is no ordinance in place that specifically prohibits illicit discharges into the storm sewer system. Ordinance 06-01-70-24, An Ordinance Relating to the The Obstruction or Pollution of Any Stream, Brook or Watercourse in the Town of Watertown, is specific to watercourses only. Ordinance 02-08-83-103, An Ordinance Regulating the Use of Public Sewers, and the Discharge of Waters and Wastes Into the Public Sewer Systems: and Providing Penalties For Violations Thereof, is specific in its prohibitions of illicit discharge to the public sanitary sewers and is general in its prohibitions of illicit discharge to other public property. However, the wetlands regulations prohibit illicit discharges to the storm water system. A new ordinance is required for the required prohibition should be created and should include enforcement and investigative powers. This activity would be performed in-house with the preparation of a proposed ordinance by the Public Works Department, review by the Town Attorney and the Ordinance Sub Committee and following public hearing, adoption by the Town Council.

Cost: 32 hours of staff time.

Measurable Goal: Proposed ordinance submitted by October 2006 and then annually until adopted by Town Council.

Implementation: Proposed ordinance submitted for consideration in 2006. No public hearing or adoption has been implemented yet.

Appropriateness of Measure: This measure is still considered appropriate in future years.

3-4 Conduct Dry Weather Outfall ScreeningEvaluate all stormwater outfalls mapped as part of 3-1 during dry weather. If outfalls have flow during dry weather then that may be evidence of illicit connections to the storm water system. Make water quality observations at flowing outfalls for evidence of contamination. Based upon these observations, rank outfalls to determine priority for further investigations to search for illicit connections in storm drains tributary to outfalls.

Visual inspections and field test kits will be used to determine water quality of the flow. Flow during dry weather may be uncontaminated groundwater from infiltration; uncontaminated flow from a culverted stream; or contaminated flow from illicit connections. To distinguish these sources, scent and visual clues such as the presence of unusual sediment, toilet paper or excess vegetation will be used to determine if the flow may be contaminated. As necessary, the following field test kits will be used to confirm and prioritize the visual observations:

· Ammonia is found in sewage, but also in stormwater containing animal waste.

· Temperature of flows containing wastewaters tends to be higher than groundwater and surface water flows, unless the wastewater discharge has been in the pipe for some time.

· Dissolved oxygen tends to be lower in wastewater due to biological processes; however groundwater can have low dissolved oxygen too.

· Specific conductivity tends to be higher in wastewater than in naturally occurring wastewaters.

In industrial areas where local industry processes are known, chemicals indicative of those processes within the drainage area may be tested for.

The ultimate goal of the outfall screening at the level described here is to flag sections of pipe that require further investigation, including manhole inspections and dye testing to pinpoint the location and nature of the pollutant source.

Cost: 320 hours of staff time and $500/year for equipment and supplies.

Measurable Goal: Percentage of outfalls screened.

Implementation: Not formally done in 2006, primarily due to staff shortages. No engineering intern was budgeted for the year to perform this work. Sample kits for testing were obtained and are on hand for future efforts. One dumper of leaves and grass cuttings water into the storm drain system was identified and a letter and brochure sent to him. Two homes were discovered to have failing septic fields discharging to storm water collection system. Both homes referred to Torrington Area Health District. Continuing inspections have done in area of North Street to identify a source of grey water, which were unsuccessful. Several other “suspicious” looking discharges were noted during the outfall mapping to be investigated.

Appropriateness of Measure: This measure is still considered appropriate in future years.


Control Measure 4: Construction Site Runoff Control

The Town is required1 to “develop, implement, and enforce a program, or modify an existing program, to reduce pollutants in any stormwater runoff to municipal stormwater system from construction activities that result in a land disturbance of greater than or equal to one acre”. To comply with this Watertown need only to continue to enforce the 2002 revised CT Guidelines for Soil Erosion and Sediment Control as part of site plan and subdivision review and inland wetland applications.

4-1 Review of Land Use RegulationsWatertown will review planning, zoning & wetlands regulations to insure that the 2002 revised CT Guidelines for Soil Erosion and Sediment Control have been incorporated. The review will be performed by the Town’s Land Use Department. Suggestions for updates will be presented to each of the commissions by the end of summer 2008. The Town Planning Department will coordinate appropriate regulatory updates with each commission.

Cost: 32 hours of town staff time.

Measurable Goal: Presentation to each commission annually until adopted.

Implementation: Not completed in 2007, but underway. It is anticipated that a major review of all regulations regarding zoning and inland/wetland issues will be conducted after the Plan of Conservation and Development is accepted by the town. Plan was adopted in December 2007.

Appropriateness of Measure: This measure is still considered appropriate in future years.

4-2 TrainingIn this fourth permit year, the Town will consider providing educational and training measures for construction site operators, including requiring a stormwater pollution control plan for construction sites that discharge into the municipal stormwater system. Discussions have been conducted with staff at NCD. The Town is working on obtaining additional data requested and then NCD is anticipating assisting with training efforts.

Cost: 20 hours of staff time

Measurable Goal: Number of persons attending training sessions.

Implementation: Not done in 2007 due to departure of Zoning Enforcement Officer, but anticipated in 2008.

Appropriateness of Measure: This measure is still considered appropriate in future years.

4-3 Inspect Erosion and Sediment ControlsThe Town requires the designated site representative to inspect the erosion and sediment controls on a weekly basis and before and after significant precipitation events. Written reports are required. The Inland/Wetlands staff person also conducts site inspections, except during winter shut downs. The Engineering Division has requested money in the 2008 FY budget to get the Town Engineer certified as Control of Erosion and Sediment Transport Professional

Cost: 20 hours of staff time to develop inspection procedure, on-going program

Measurable Goal: Developed inspection procedure, number of inspections conducted.

Implementation: Weekly inspections and reports were conducted at all major construction sites (> 1 acre in size) in 2006 and at other sites as required. Results are on file in Planning & Zoning office.

Appropriateness of Measure: This measure is still considered appropriate in future years.


Control Measure 5: Post-Construction Stormwater Management in New Development & Redevelopment

The Town is required1 to develop, implement, and enforce a program to address stormwater runoff from new development and redevelopment projects that disturb greater than or equal to one acre, including projects less than one acre that are part of a larger common plan of development or sale, that discharge into the municipal stormwater system or directly to waters of the State.

This program shall: ensure that controls are implemented to require appropriate infiltration practices, reduction of impervious surface, creation of or conversion to sheet flow, measures and/or structures to reduce sediment discharge and any other innovative measures that will prevent or minimize water quality impacts; develop and implement strategies which include a combination of structural and/or non-structural best management practices (BMPs) appropriate for Watertown; develop an associated enforcement program; and ensure adequate long-term operation and maintenance of best management practices.

5-1 Review and Update of Land Use Regulations - To comply with this measure Watertown will review planning, zoning & wetlands regulations to meet the 2004 CT DEP Storm Water Quality Manual Guidelines. The Town will be conducting this review in collaboration with staff of the Central Naugatuck Valley Council of Governments. Suggestions for updates will be presented to each of the commissions by the end of summer 2008. The Town Planning Department will coordinate appropriate regulatory updates with each commission.

Cost: 80 hours of Town staff time.

Measurable Goal: Recommendations to each commission annually until adopted.

Implementation: Not completed in 2007, but is still underway. As discussed above, this item will receive considerable attention now that the Plan of Conservation and Development was adopted by the town in December 2007.

Appropriateness of Measure: This measure is still considered appropriate in future years.

5-2 CT DEP Workshop The CT DEP will be invited to review their 2004 CT DEP Storm Water Quality Manual Guidelines with all land use commissioners to help them decide how to incorporate it into their regulatory process. The

Planning Department will coordinate this workshop to be held annually beginning summer 2008.

Cost: 16 hours of staff time

Measurable Goal: Number of attendees at workshop.

Implementation: Staff attended DEP workshops and commissioners of land use commissions were invited.

Appropriateness of Measure: This measure is still considered appropriate in future years.

5-3 Adopt the 2004 CT DEP Storm Water Quality Manual Guidelines The Town will consider specifying this guidance document as providing design and performance standards for all stormwater BMPs in Watertown. The target adoption date is spring 2008, when Public Hearings are anticipated. It is anticipated that the Guidelines will be added as an Appendix to the zoning Subdivision Regulations and the Inland Wetland Regulations.

Cost: 40 hours of staff time

Measurable Goal: Adoption of guidelines into regulations.

Implementation: Guideline adoption not completed in 2007. It is anticipated that the guidelines will be incorporated into the applicable regulations now that the Plan of Conservation and Development was adopted in December 2007.

Appropriateness of Measure: This measure is still considered appropriate in future years.

5-4 Inspection Program – The Town will consider an inspection program that will insure long-term maintenance of private structural BMPs. This may include requiring developers to submit descriptions of all new BMPs including location, design & installation plans, vendor & manufacturer, and maintenance requirements. The owner of the BMP(s) will be responsible for future maintenance. The Town began to research these ideas in fall of 2004. It is the policy of the town that structural BMPs are being deeded to the town to ensure that appropriate maintenance is performed.

Cost: 40 hours of staff time

Measurable Goal: Inclusion in regulations

Control Measure 5: Post-Construction Stormwater Management in New Development & Redevelopment (continued)

Implementation: Not completed in 2007. It is anticipated that the guidelines will be incorporated into the applicable regulations now that the Plan of Conservation and Development was adopted in December 2007, although structural BMPs are being required as a matter of regular practice in new subdivisions in town.

Appropriateness of Measure: This measure is still considered appropriate in future years.

5-5 GIS – The Town is working with a consultant, Tighe & Bond, to develop a GIS program for the entire Town. Currently the Watertown Fire District and the Watertown Water & Sewer Authority either have, or are acquiring, GIS mapping. The rest of the town will be phased in over the next five (5) years), and the Watertown Tax Assessor was completed in 2006. The Engineering Division of Public works Department is currently having system installed and records scanned. Aerial mapping from SBC has been purchased and is being completed. These maps will be updated as possible to include hydrologic and hydraulic modeling. The Town will work to incorporate elements of the mapping into new development design/restoration where appropriate. The Town has begun to research these ideas in the winter of 2004 and will continue to assess and incorporate any feasible model applications.

Cost: $25,000/year

Measurable goal: Implementation of GIS mapping of storm sewer system.

Implementation: Underway in Engineering in 2007. Consultant has completed water and sewer layers for Water and Sewer District portions of town as well as tax mapping. Council of Governments has completed GIS mapping of outfalls located during summer of 2005 and 2006 (previously submitted). Town is currently posting a “beta” version on the town website.

Appropriateness of Measure: This measure is still considered appropriate in future years.


Control Measure 6: Good Housekeeping

The Town is required1 to develop and implement an operation and maintenance program that includes a training component for municipal employees and contractors and has the ultimate goal of preventing or reducing pollutant runoff from municipal operations. In addition the Town must:

§ Develop and implement a program to sweep all streets at least once a year as soon as possible after snowmelt; within the “urbanized area” a program must be developed and implemented to evaluate and prioritize those streets that may require sweeping more than once a year.

§ Develop and implement a program to evaluate and, if necessary, clean catch basins and other stormwater structures that accumulate sediment at least once a year, including a provision to identify and prioritize those structures that may require cleaning more than once a year;

§ Develop and implement a program to evaluate and, if necessary, prioritize for repairing, retrofitting or upgrading Town conveyances, structures and outfalls.

6-1 Training ProgramThe Town will begin to research and develop a training program for municipal employees in the summer of 2005. The training program will likely be added to training that Public Works operations staff currently receives. The training will include discussion of areas in Town most sensitive to stormwater impacts. The Town will incorporate existing research information (i.e. CNVCOG Impervious Surface Buildout). The training program was expected to be in place by spring of 2006. The Public Works Department will take the lead on this initiative and work closely with the Planning Department. The Northwest Conservation District scheduled and performed training to Town staff in the spring of 2007 and to also offer this training to contractors operating in town. Town Engineer to develop list of contractors to be offered training by April 2008. Staff attended 2007 Stormwater training conducted by CT DEP in Woodbury on November 13, 2007.

Cost: 40 staff hours to develop plan and 40 man-hours for training employees.

Measurable Goal: Annual training session per year for all affected employees.

Implementation: Highway Division and other town maintenance employees received in-house training in spring of 2007 as part of annual training program. Outside contractors have not. Engineering Division and Planning and Zoning staffs have received training.

Appropriateness of Measure: This measure is still considered appropriate in future years.

Control Measure 6: Good Housekeeping (continued)

6-2 Street SweepingThe town will review current sweeping practices and schedule and update as necessary to meet permit requirements by spring 2005. The Public Works Department will take the lead on this initiative and work closely with the Planning Department. The Town currently has two street

sweepers in the fleet inventory and sweep all of the roads in Town at least once per year. Records will be maintained of sweeping schedule and daily volume of residuals collected. A priority list of critical areas of environmental concerns was developed and these areas were swept first and then redone as required during the course of the year. The Central Business District of the town was swept on a monthly basis.

Cost: $88,038/year

Measurable Goal: All streets in town swept once per year. Records are maintained in Highway Division of Public Works at 91 Burton Street.

Implementation: All streets and sidewalks swept at least once. Records of dates and volumes transported to landfill for recycling are kept at the Highway Garage and are available for review. An estimated 591 cubic yards or 745 tons of material were swept and transported. A priority list of streets in environmentally sensitive areas or with a history of clogging was developed and is attached to this report.

Appropriateness of Measure: This measure is still considered appropriate in future years.

6-3 Sidewalk SweepingThe town will review current sweeping practices and schedule and update as necessary to meet permit requirements by spring 2005. The Public Works Department will take the lead on this initiative and work closely with the Planning Department. The Town currently has one mechanical sweeper in the inventory, which is used to sweep all of the sidewalks that the Town is responsible for on an annual basis. Records will be maintained at Highway Garage of sweeping schedule and daily volume of residuals collected.

Cost: $9,270/year

Measurable Goal: All town maintained sidewalks swept once per year.

Implementation: All streets and sidewalks swept at least once per year. Records of dates and volumes transported to landfill for recycling are kept at the Highway Garage and are available for review.

Appropriateness of Measure: This measure is still considered appropriate in future years.

6-4 Grit Separator Cleaning The Town has a Vac-All truck that is used to clean out all grit separators connected to municipal storm drainage systems that the town owns or maintains. The grit separators are cleaned out annually. A list of grit separators has been developed by the Highway Department. Records will be maintained at the Highway Garage of cleaning schedule and volume of residuals collected.

Cost: $8,768/year

Measurable Goal: All town maintained grit separators cleaned out annually.

Implementation: All grit separators were pumped out by Vac-All at least once. Records of dates and volumes transported to landfill for recycling are kept at the Highway Garage and are available for review. Formal list has not yet been finalized, but a draft list has been completed and being used for maintenance purposes. Oil/water separator cleaned by licensed waste hauler.

Appropriateness of Measure: This measure is still considered appropriate in future years.

6-5 Catch Basin CleaningThe Town has a Vac-All truck and Jet Rodder that is used to clean out catch basins. As part of the mapping of the outfalls, the locations of the catch basins will be determined. The town will clean out every catch basin that has reached at least half of their sump capacity at least once every four years. A priority list was developed to identify those catch basins in low areas susceptible to filling up with sand or debris or those catch basins in environmentally sensitive areas. Records are maintained at Highway Garage of number and locations of catch basins cleaned. Catch basins that contain exceptionally large volumes of residual volumes will be noted and prioritized for more frequent cleaning.

Cost: $13,680/year

Measurable Goal: Clean at least 500 catch basins per year.

Implementation: Approximately XXX catch basins were repaired and approximately XXX catch basins were cleaned. Approximately XXX cubic yards of material or XXX tons of material was removed. In addition, other basins are cleaned in response to either citizen requests or as noted during inspections during precipitation events on an on-call basis and were not recorded. Subcontractors also cleaned XXX basins and approximately XXX linear feet of storm sewer pipes.

Appropriateness of Measure: This measure is still considered appropriate in future years. Budget request for a Vac-All operator was not approved. Existing Vac-All being refurbished winter 2007-2008.

6-6 Minimize Impacts from Municipal Vehicle Washing Wash all vehicles indoors or on the vehicle wash pad and in compliance with the General Permit for the Discharge of Vehicle Maintenance Wastewater. Inspect oil/water separator annually and have pumped out at least annually by a licensed waste hauler.

Cost: $2,000/year

Measurable Goal: Inspect oil/water separator annually. Cleaned by a licensed waste hauler annually. Completed. Manifest on file in Public Works.

Implementation: Oil/water separator inspected and cleaned out by a licensed waste hauler in 2007. All municipal building floor drain systems have been examined; record drawings investigated and dye tests perform to verify connections to sanitary or storm sewer system in accordance with permit requirements.

Appropriateness of Measure: This measure is still considered appropriate in future years.

6-7 Minimize Impacts from Municipal Vehicle Maintenance Continue to practice good housekeeping measures required by other permits, including, but not limited to: covering dumpsters when not in use, having spill containment materials readily available for use in various areas of the Public Works garage, using drip pans when changing fluids, using spigots or funnels to minimize drips when transferring fluids, storing oily wastes separately from other wastes, properly managing and storing waste fluids, storing dirty rags in a covered container; changing all fluids indoors, storing drums and used pallets under cover; and inspecting all tanks and vehicles regularly for signs of leakage or corrosion.

Cost: Nothing additional

Measurable Goal: Completion of required semi-annual inspections.

Implementation: Semi-annual inspections performed at Highway Garage and landfill and filed with stormwater Phase I permit. FY 2008-2009 Budget includes request for Highway Garage Wash Pad cover.

Appropriateness of Measure: This measure is still considered appropriate in future years.

6-8 Public Grounds Maintenance Train staff to minimize application of herbicides, pesticides, and fertilizers. Keep records of materials and quantities used.

Cost: 16 hours of staff time for training and record keeping.

Measurable Goal: Amount of herbicides and fertilizers used.

Implementation: This measure has not been finalized yet, but “over the counter” chemicals are now being used. Public Works and Parks Departments cooperated to develop a roadside vegetation management program for implementation in 2007, which was successful. No registered chemicals were used.

Appropriateness of Measure: This measure is still considered appropriate in future years.

6-8 Detention Basin Maintenance Clean or modify stormwater quality detention basins. Create GIS map showing detention basin location and ownership. Train staff to minimize application of herbicides, pesticides, and fertilizers. Keep records of basins cleaned or modified.

Cost: 16 hours of staff time for training and record keeping.

Measurable Goal: Amount of detention basins cleaned or modified.

Implementation: Program implemented in 2005. A map of locations and access drives has been developed and will be updated annually by Engineering. The map is available for review at Highway. The following basins were cleaned or mowed in 2007:

1. Evelyn Street (2)

2. Taft Pond

3. Old Farms

4. Bellemeadow

Appropriateness of Measure: This measure is still considered appropriate in future years.

Permit Requirements

Updating the Stormwater Management Plan

The Stormwater Committee at the semi-annual meetings will review the Stormwater Management Plan. Public comments will be solicited during the annual review period in the thirty days before the annual update to the Town Council. The plan will be amended whenever: 1) there is a change that has the potential to cause pollution to the waters of the state; or (2) the actions required by the plan fail to ensure or adequately protect against pollution of the waters of the state; or (3) the Commissioner requests modification of the plan. The amended plan shall be completed and all actions required by such plan shall be completed within the time frame determined by the Commissioner. Proposed updates or changes will be submitted to the Commissioner in the annual report to the DEP.

Monitoring

The stormwater discharge monitoring program sampling will be performed in accordance with Section 3-2. Unless otherwise specified by the DEP, all pollutant parameters shall be tested according to the methods prescribed in Title 40, CFR, Part 136 (1990).

Reporting Requirements

An annual report is to be made to the Town Council at the end of the calendar year and an annual report is to be submitted to the Commissioner by January 31 of each year at the following address:

STORMWATER PERMIT COORDINATOR

BUREAU OF WATER MANAGEMENT

DEPARTMENT OF ENVIRONEMTNAL PROTECTION

79 ELM STREET

HARTFORD, CT 06106-5127

The report shall include:

· A municipal plan review fee of $187.50;

· The status of compliance with the general permit, an assessment of the appropriateness of the identified best management practices and progress towards achieving the implementation dates and measurable goals for each of the minimum control measures;

· All monitoring data collected and analyzed;

· All other information collected and analyzed;

· Summary of stormwater activities that the Town proposes to undertake during the next reporting cycle (contained in Appendix E); and

· A change in any identified measurable goals or implementations that apply to the program elements.

This report is scheduled to be made to the Public Works Subcommittee of the Town Council at the January 14, 2008 meeting and then to the entire Town Council at the January 21, 2008 meeting. Report was delayed due to elections and reorganization of Subcommittee and town council membership.

Record Keeping Requirements

All records required by this permit shall be maintained for at least five (5) years following its expiration or longer if required by the Commissioner in writing. These records, including the Stormwater Management Plan shall be available to the public at reasonable times during regular business hours. The records and plans will be maintained in the Public Works Department, currently at Suite 203, 51 Depot Street between the hours of 8:00 A.M. to 5:00 P.M.

Other Requirements

  1. There shall be no distinctly visible floating scum, oil or other matter contained in the stormwater discharge. Excluded from this are naturally occurring substances such as leaves and twigs provided no persons has placed such substances in or near the discharge.

  1. The stormwater discharge shall not result in pollution due to chronic or acute toxicity to aquatic or marine life, impair the biological integrity of aquatic or marine ecosystems, or result in unacceptable risk to human health.


Permit Eligibility

This section evaluates the Town of Watertown’s DEP General Permit eligibility with respect to endangered species, historic places, coastal management and impaired waters..

The Phase II rule and subsequently the CT DEP General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems prohibits stormwater discharges (or discharge related activities) that will threaten any species listed as endangered or threatened under Section 26-306 of the Connecticut General Statutes or result in adverse modification or destruction of habitat that is designated as essential for these species. The rule also prohibits discharges that adversely affect properties listed (or eligible to be listed) on the National register of Historic places unless the registrant is in compliance with the requirements of the national Historic Preservation Act and has coordinated with the State historic Preservation Officer. The stormwater discharge also has to meet the goals and policies of the coastal management Act, and not cause adverse impacts to the coastal resources.

In addition, if the permittee initiates, creates or originates a stormwater discharge less than 500 feet from a non-fresh-water tidal wetland, the discharge shall be retained in a system designed to retain the volume of stormwater runoff generated by the first inch of rainfall on that watershed. Also, if the permittee initiates, creates, or originates a discharge of stormwater below the high tide line into coastal, tidal or navigable waters, additional permits are required from the DEP Commissioner.

If the town does not meet these requirements, it must apply for the more stringent individual permit, rather than the general permit.

When the exact location of the outfalls has been determined, a determination of the impacts to endangered species and historic sites will be assessed. The Town of Watertown does not have any areas designated as coastal. To the best of our knowledge, the Town of Watertown meets the eligibility requirements for the general permit.


Receiving Waters

One of the goals of the SWMP is to protect water quality in the MS4’s receiving waters. This section lists the receiving waters in Watertown. The BMPs in the Stormwater management plan will help protect these receiving waters. The Table below summarizes the BMPs and any estimated additional requirements for implementation, above and beyond the existing stormwater practices in the town of Watertown.

Watertown’s MS4 discharges stormwater to the following receiving waters, based upon USGS mapping:

  • Steele Brook
  • Echo Lake and Brook
  • Naugatuck River
  • Branch Brook
  • Hop Brook
  • East Spring Brook
  • Nonewaug River
  • Morehouse Pond
  • Lake Winnemaug
  • Atwood Brook
  • Wattles Brook
  • Fenn Brook
  • Turkey Brook
  • Smith Pond
  • Merriman Pond
  • Judds Pond
  • Echo Lake
  • Heminway Pond

Impaired Water Bodies

One water body lies within the town of Watertown that is listed on the Proposed 2004 List of Connecticut Waterbodies Not Meeting Water Quality Standards (303(d) list). It is:

Steele Brook (CT6912-00_02) – A water quality survey was conducted during the 2002 season in order to identify the cause of the Aquatic Life Support impairment. Based on field observation and laboratory data, iron precipitation appears to be the cause of aquatic life support impairment below Heminway Pond dam. The CT DEP is discussing removal of the Heminway Pond dam with town and its owner.

APPENDIX A

Part A Stormwater Registration


APPENDIX B

Map of Urbanized Area and Outfalls


APPENDIX C

General Permit

APPENDIX D

Sample Results


APPENDIX E

Summary of Proposed 2007 Activities


APPENDIX F

Copies of Articles, Inserts and Other Materials



[1] General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems, January 9, 2004. General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems, January 9, 2004.

. Educating the public about the importance of stormwater management can help lead to greater support for and compliance with the Stormwater Management Plan.