2020 ANNUAL REPORT
Municipal Separate Storm Sewer System
FARMINGTON, CT
Prepared by
TOWN OF FARMINGTON DEPARTMENT OF PUBLIC WORKS Engineering Division 1 Monteith Drive Farmington, CT 06032 (860.675.2305)
MARCH 2020
MS4 General Permit Town of Farmington 2O2O Annual Report Existing MS4 Permittee Permit Number GSM 000090 [January L,2020 - December 3L, 2O2Ol
This report documents the Town of Farmington's efforts to comply with the conditions of the MS4 General Permit to the maximum extent practicable (MEP)from January t,2O2O to December3t,2O2O.
Part l: Summary of Minimum Control Measure Activities
1. Pubf ic Education and Outreach (Section 6 (aX1) / paee L9)
1.1 BMP Summary
, Department Date completed or BMP Status Activities in current reporting period Measurable goal / Person Due proiected Additional details Responsible completion date Completed Year 4: Procure or develop Add.to existing Spring, Summer & stormwater content related to library and post to Winter impervious coverage, (metals, oils website 2020 grease), improper disposal of household waste, preserving wetlands and effects to stormwater, methods of recycling particular materials, and methods of recycling 1-1 lmplement oil and latex paint. public education DPW Yearly and outreach Completed Year 3: Procure or develop Add to existing Fall 2019 stormwater content related to library and posted mercury and improper waste website disposal.
Completed lnformational material posted to Add to existing ongoing Town Website: library and posted http://www.fa rmington- website ct.orglhome/showdocu ment?id=6537
L Complete Year 4: Procure or develop Publish Spring, Summer & stormwater content related to lnformation Winter impervious coverage, (metals, oils 2020 grease), improper disposal of household waste, preserving wetlands and effects to stormwater, methods of recycling particular materials, and methods of recycling 1-2 Address oil and latex paint. education/ outreach for DPW Complete Year 3: Publish stormwater content Publish Yearly October 2019 & pollutants of concerning the hazards of mercury lnformation April 2020 concern* switches and thermometers and issues with improper waste disposal.
Complete lnformational material posted to Publish January 2017 Town Website: ' lnformation
http://www.fa rm i ngton- ct.orslhome/showdocu ment?id=5537
Due to COVID restrictions, cleanup Stormwater Pollution days and events were cancelled. Prevention bookmarks lnformation and information Committee posted information on posted to website, pamphlets provided in Social Media and Newsletters flyers, Annual DPW & Town Hall lobby. 1-3 Green Efforts Spring/Summer Ongoing promoting and encouraging residents Newsletter, and Green Efforts Yearly FRWA: Commission 2020 to participate in events Everbridge Committee River Cleanup 1U2O2O independently. Notification Lawn Watering 06/20 System. Earth Day Cleanup 04/20 Simple RecyclineO!/20 Continue to Provided financial assistance to provide assistance 1-4 Farmington FRWA, to FRWA to assist Town of River Watershed Ongoing education efforts, Yearly Spring 2020 Farmington Association Promote FRWA stormwater links and programs and events studies of the watershed. Publish and As new information 1-5 Stormwater Material has been collected and maintain a becomes available it is Page on Town Complete stormwater website is on-line. stormwater- DPW Jul 1, 2018 Spring 2018 added to the website. Website specific webpage on Town Website
2 1.2 Describe any Public Education and Outreach activities planned for the next year, if applicable
o Publish material in the Town's Newsletter
. Host Town-wide Cleanup Day should COVID restrictions allow . Host a Spring and Fall Bulky Waste Collection o Update Stormwater Page on Town Website as new information becomes available o_ lnformation palp-flets / loqk p- rl<1 to be prgvilgd at Town Hal! in the Spring / Summer
1.3 Details of activities implemented to educate the community on stormwater
-t Audience (and number j Pollutant of Concern Program Element/Activity Topic(s) covered Responsible dept. or partner org. ofpeople reached) 1 Clean up day, lmpervious coverage, Household Metals, Oils, & Grease 2020 Spring Summer, Fall and Winter Hazardous Waste All Residents DPW newsletters disposal of everyday Latex Paints items, Household Hazardous Waste Collections Stormwater Pollution Prevention bookmarks Bacteria, nitrogen and Residents Stormwater Quality DPW , distributed atTown Hall phosphorus
3 2. Public lnvolvement/Participation (Section 6(aX2) / paee 2!l
2.1BMP Summary
Department Date completed Measurable / BMP Status Activities in current reporting period Person projected goal Due or Additional details Responsible completion date 2-1 Continue Plan is available on availability of Final Plan is posted to the Town website Engineering Stormwater http://www.farm ington- Department page Complete DPW On-going On-going Management Plan to ct.orgldepartments/engineering/stormwater of website the Public
Publish Notice posted 2-1 Comply with public Plan will be Publish Notice about MS4 Plan and Annual on website Jan 31, and available for a notice requirements On-going DPW Jan3I,2027 Report and through 2021 forAnnual Reports 30-day comment Everbridge period as required. Residents COVID restricted help remove community events. trash from DPW & Residents urged to 2-2 Promoted Clean Publish notice in Town Newsletter, Website, April 2020 Ongoing parks, Green Efforts Yearly get out and Up Town Event and Everbridge playgrounds, Committee perform a day of roadsides and cleanup on their riverbanks own. Residents Due to COVID DPW & dispose of restrictions, the 2-3 Hosted Household Green Efforts Publish notice in Town Newsletter, Website, hazardous June 13, 2020 total number of Hazardous Waste Ongoing Committee & Yearly and Everbridge waste Oct t7,2O2O events had been Collection Events Conservation properly reduced from (3) to Commission (2). Residents Due to COVID dispose of restrictions, the DPW 2-4 Hosted Shredding Publish notice in Town Newsletter, Website, material June 13, 2020 total number of Ongoing Green Efforts Yearly Events and Everbridge properly Oct t7 events had been Committee ,2020 reduced from (3) to (2). Financial assistance. 2-5 Partner with Local Provide financial assistance to the FRWA Promote & Town of Spring/Summer Volunteer On-going annually. Support Wild and Scenic River Act distribute Yearly Farmington 2020 Organizations events. FRWAWiId & Scenic River Act events.
4 Residents
2-5 Hosted Bulkwaste l Publish notice in Town Newsletter, Website, dispose Ongoing of DPW ', April20-24, Pickup and Everbridge Bi-Annual , material ' 2020 properly '. Oct.t9-23,2020
2.2 Describe any Public Involvement/Participation activities planned for the next year, if applicable.
Host the following Events: r Household Hazardous Waste Cleanup r Shredding event r Townwide Cleanup Day should COVID restrictions allow r Spring and Fall Bulky Waste Collection o Annual posting of the Stormwater Report for public comment o Continued posting of the Stormwater Management Plan
2.3 Public lnvolvement/Participation reporting metrics
Metrics lmplemented Date Posted
http ://www.fa rm i ngton- Availability of the Stormwater Management Plan announced to public Y March 15,2017 ct.ore/departments/engineering/stormwater
http ://www.fa rm i nston- Availability of Annual Report announced to public Y January 37,2021 ct.org/departments/engineering/stormwater
5 3. lllicit Discharge Detection and Elimination (Section 6(aX3) and Appendix B / paee 22)
3.1BMP Summary
Department Date completed Activities in current Measurable / or BMP Status Person Due projected reporting period goal Additional details Responsible completion date 3-1 Develop written IDDE lmplement Plan was completed Completed Town completed IDDE Plan DPW Jul L, 2018 program IDDE program April 23, 2018
Town continues update 3-2 Develop list and maps of all Town wide mapping to Town wide database as needed. Data MS4 stormwater outfalls in Completed completed DPW Jul 1, 2019 Jul 1, 2019 Mapping is stored in town GIS priority areas wide mapping database.
Currently review and act on any complaints as 3-3 lmplement citizen reporting Received and acted on Track citizen Completed DPW Jul t,2OL7 Jul 1,2017 received. Town has program complaints as received complaints included an email link on Town Website. Reviewed Existing Existing Ordinance was Enforce 3-4 Establish legal authority to Ordinance for compliance reviewed and found to Completed ordinance as DPW Jul 1, 2018 July 1, 2018 prohibit illicit discharges with current MS4 satisfy current permit required requirements requirements.
Spreadsheet developed to 3-5 Develop record keeping Spreadsheet Current reports are On-going track IDDE, includes DPW Jul L,2O\7 July 2018 system for IDDE tracking created limited to erosion control criteria noted in permit
2018 Wet weather sampling within the Batterson Park Pond Basin (4401-00-1-11). Due to COVID Pandemic and many property 3-6 Address IDDE in areas with ln Continue with Not Sampling commenced DPW owners working from pollutants of concern Progress sampling specified home, it was determined to refrain from testing during 2020 due to concerns of coordinating access through private properties.
6 3.2 Describe any IDDE activities planned for the next year, if applicable.
Continue with IDDE dry and wet weather screening. Contract with Consultant to assist with IDDE dry and wet weather screening Maintain master IDDE tracking spreadsheet and ensure all employees involved in IDDE program understand the logging process. Continue with identifying priority areas and maintaining the detention/retention database.
3.3 tist of citizen reports of suspected illicit discharges received during this reporting period.
Date of Report Location / suspected source Response taken
During catch basin inspections, discovered odor concern and possible laundry flow into CB. May 28,2Q2O 13 or 15 Forest Hills Drive FVHD was informed. Currently working with owners to determine whether in-fact connection is made. lf so, owner will be instructed to remove. Phone call regarding illegal activity onsite. lnspection determined owner had filled wetland in May t2,2O2O 1179 Farmington Avenue close proximity to the Farmington River. Cease & Desist issued, erosion control installed, and owner currently working with Town lnland Wetlands Commission regarding restoration plan. Phone call regarding illegal activity onsite. lnspection determined owner had filled wetlands July 2t,2O2O 15 Pond Street draining to Lake Garda. Cease & Desist issued, erosion control installed, site stabilized. Town lnland Wetlands Commission approves wetland scientist restoration plan for spring 202L. Ongoing concerns with erosion control. Several measures were completed to prevent Summer 2020 37 Mountain Lane continued offsite erosion. Worked closely with contractor through fall to implement multiple erosion control measures. Monitoring will continue through spring & summer 2021. Ongoing concerns with erosion Worked Summer 2020 Tanbark Trail control. closely with contractor through the fall to implement multiple erosion control measures. Monitoring will continue throughout 2021. During catch basin inspections, discovered possible laundry flow into CB. Currently working November 5,2O2O 2 Harlan Road with owner to determine whether in-fact connection is made. lf so, owner will be instructed to remove. During catch basin inspections, determined recent illegal dumping of apparent "fry-oil" into catch basin. Further inspections confirmed oil contained to CB. Contacted WPCP and basin December 71,2O2O L5 Hemlock Notch was cleaned on t2/1,I/2o2o. Letter sent to neighborhood on t2/I812020 informing them of the cleanup and also reminding them of importance of stormwater and negatives of illegal dumping.
7 3.4 Provide a record of illicit discharges occurring during the reporting period and SSOs occurring luly 2Ot4 through end of reporting period using the following table.
Location Discharge Known or Estimated (Lat long/ street Date and duration of to MS4 or suspected cause Corrective measures planned volume and completed Sampling data crossing /address and occurrence surface Responsible (include dates) (if discharged / applicable) receiving water) water party No reported illicit discharges for 2O2O Westfarms Pump Catastrophic August 25th, 2019 (1000hrs) Station (500 South N N/A Wear Ring Critical Spares onsite were installed August 26th, 2019 (0800hrs) N/A Road) Failure Stanley Pump Station April 17th, 2019 (1230hrs) Station Electrical N <10,000 gal New breaker was installed N/A (58 Scott Swamp Rd) April 17th, 2019 (1315hrs) Failure March 8, 20L6 (2000hrs) 7 Wildcat Drive N <100 gal Mainline backup Plug was removed from manhole and mainline cleaned N/A March 8, 2016 (-2100hrs) March 18, 2015 (1330hrs) 20 Scott Swamp Road N <1,000 gal Mainline backup Manhole and mainline cleaned N/A March 18, 2015 (1430hrs) Depot Place Sept 9, 2014 (0930hrs) N <500gal Mainline backup Manhole and mainline cleaned N/A (cul-de-sac) Sept 9, 2014 (1030hrs) April 24, 20L4 (2230hrs) Forcemainline 308 Farmington Ave N <1,500ga1 Forcemain repaired N/A April 24, 2014 (2330hrs) backup
3.5 Briefly describe the method used to track illicit discharge reports, responses to those reports, and who was responsible for racking this information.
Any illicit discharge complaint is received and logged in the tracking spreadsheet, and upon investigation, the DPW Engineering Division is notified as to whether the complaint was valid, the connection removed, or if further action is required. ln the case of Erosion Control Violations, the sediment is removed, and the erosion control measures are installed or improved and when necessary restoration plans are reviewed and approved by the lnland Wetlands Commission.
3.5 Provide a summary of actions taken to address septic failures using the table below
Location and nature of structure with failing septic Actions taken to respond to and address the failures lmpacted waterbody or watershed, if known systems
9 Aqueduct Lane lnstall new tank and leaching fields 43OO-OO-5+R4
40 Carriage Drive lnstall new tank 4315-00-4-R6
192 Coppermine Road lnstall new tank and leaching fields 4300-21-1
14 Fairview Drive lnstall new tank 440L-OO-t-L2
8 36 Fairview Drive lnstall new tank 4401-00-1-12 I, 30 Forest Hills Drive I Evaluation Conducted 4315-00-4-R5 -+iob-ze-r-Lr I 11 Griffinville Road lnstall new tank and leaching fields
lnstall new tank and leaching ri;id; 4315-00-4-R5
465 Main Street I lnstall newtank +sis-oo-+-ni i-__..-_ 92 Mountain Road t lnstall newtank i 4300-26-1 i-...--. : 124 Mountain Road Evaluation Conducted I 4300-26-t
, 136 Mountain Spring Road lnstall new tank 4300-27-1
145 Mountain Spring Road lnstall new tank 4300-27 L
1119 New Britain Avenue lnstall new tank 431s-00-4-R6
1 Orchard Road i.iirre - rll* tviiem unaer d;;is" 4r';O7-OO-1,-L2 rs brctraio noio lnstall new tank 4401-oo-7-L2
20 Orchard Road lniiiii ne* iint 4401-oo-t-L2
513 Plainville Avenue r Replace house sewer pipe t, 4300-2'J,-1 1,. .. -.. -, 515 Plainville Avenue I lnstall new tank and leaching fields : 4300-21-1 - ' 859 Plainville Avenue lnstall new tan[ 437s-13-2-L2 67 Red Oak Hill Road lnstall new tank and leaching fields 4300-00-4+R17
57 Reservoir Road lnstall new tank 4315-1s-1
47 Shady Lane i Failure - New system under design 4403-O7-1 5 Taine Mountain Road i Install new tank 4300-22-z-Rt
23 White Oak Road ilure - New system under design MO3-O2-t
88 Woodpond Road lnstall new tank and leaching fields 4/;O3-O7-7
'L!7 Woodpond Road I new tank 4403-OO-1-11
Note: All data obtained from Farmington Valley Health District
9 3.7 IDDE reporting metrics
Metrics
Estimated or actual number of MS4 outfalls 534* *
Estimated or actual number of interconnections r37
Outfall mapping complete too%
lnterconnection mapping complete too%
System-wide ma pping complete (detailed MS4 infrastructure) 700%
Outfall assessment and priority ranking LOO%
Dry weather screening of all High and Low priority outfalls complete 6o0/o
* Catchment investigations complete* * o%
Estimated percentage of M54 catchment area investigated*** o%
**Number revised after further review and field investigation of mapping system. ***Desktop review of catchment investigations is underway with the intent of conducting field investigations this spring. There are a limited number of catchments that require investigation in Farmington due to the limited System Vulnerability Factors (SVF) that apply to Farmington. The SVFs that apply to Farmington are sewer pump stations, crossing of storm and sanitary sewer alignments, sanitary sewer alignments known or suspected of being constructed with an underdrain system, and sewers in moderate to dense areas that exceed 40 years of age.
3.8 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).
Stormwater training of Town employees is through on-the-job instruction and training by supervisors, consultants, and through employee's attending University of Connecticut Technology Transfer training programs. The primary focus of the training continues to be the cross training of existing employees within the divisions that make up the Department of Public Works, aimed at ensuring a broader understanding of the roles of each member of the staff assigned specific stormwater management responsibilities, and how those activities are integrated to minimize the Towns impact to the environment and to meet the obligations of the stormwater general permit.
The Town held a formal training program for new employees and a refresher for existing employees on March 26,2O!9. During 2020, due to gathering limitations imposed by COVID-19 restrictions formal IDDE training was not held. lnstead, Highway and Grounds employees were notified during their regular Monday safety meeting to be aware of possible illicit discharges and to report their supervisor.
10 4. Construction Site Runoff Control (Section 6(aXa) / paee 25)
4.1 BMP Summary
Department Date Activities in current completed or BMP Status Measurable goal Person projected reporting period / Due Additional details Responsible completion date The Article lV, Sections 11 zoning regulations and 25 of the require the submission The Planning and Farmington Zoning of complete plans and 4-1 lmplement, upgrade, and Zoning application Regulations requires technical documents enforce land use regulations checklist requires the that include all soil the submission of an E or other legal authority to Complete submission of an E&S DPW Jul 1, Completed erosion &S plan for all projects 2019 and meet requirements of MS4 plan and stormwater sedimentation with earth disturbance control general permit design and parameters and greater than % acre mitigation. and stormwater stormwater management quality system designs and mitigation measures. The Town Manager Policy 4-2 Develop/lmplement plan lnterdepa rtmenta I and Procedure#0402 Completed. for interdepartmental review process is Complete outlines the DPW Jul7,2OI7 lmplemented prior coordination in site plan implemented with interdepartmental to 2017. review and approval every Land Use review requirements. Application. The review checklist Every Land Use included in Manager Application is Completed. 4-3 Review site plans for Policy and Procedure reviewed to ensure On-going DPW JulI,2OI7 lmplemented prior stormwater quality concerns #0402 includes compliance with the to 2O17. Stormwater quality checklist. elements The Planning / E&S sign-off required Engineering Divisions prior to issuance of Completed. review the installation Building Permit. lmplemented prior ofall E&Smeasures to 20t7. during construction; Review of As-built Complete / review as-built plans plan required prior to on-going On-going regarding to ensure all storm the issuance of C.O. 4-4 Conduct site inspections (Long Term DPW Jul1,2ot7 the implementation drain elements are Maintenance of the Long Term installed per plan; and Long term maint plan requirements) Maintenance long term required as part of all requirements for maintenance of storm Commercial Commercial drain elements are the developments. Developments. responsibility of the owner.
1.L The public hearing Public Hearing 'meetings - process allows for are public comment for all recorded and proposed Land Use minutes issued. Applications. 4-5 lmplement procedure to Completed. lmplemented prior allow public comment on site Complete Jul7,2O!7 The public can DPW development voice Other Public to 20t7. concerns to DPW. Concerns - most Concerns brought to concerns and other departments are resolution are transferred to DPW for documented in management. writing Notification provided via Engineering 4-6 lmplement procedure to Notification provided Comments. All Land Completed. notify developers about DEEP to applicants Use approvals are lmplemented prior Complete DPW Jul 1-,2OI7 construction stormwater disturbing over 5 acres subject to the to 2OI7. permit of land. resolution of Engineering Comments. The Engineering Division Article lV Sections 11 permits minor and 25 allow for Allowance of modification 4-7 Regulatory Flexibility for flexibility in erosion of erosion On-going innovative water DPW On-going On-going control and water Additional Controls as Needed control practices and quality techniques quality stormwater measures to meet the specific management practices needs of each site. Land Use conditions Land use condition of of approval that approval applied to all require the commercial and Article lV, Section 11 submission of Long subdivision projects 4-8 Require Maintenance and On-going of the Zoning Term Maintenance DPW On-going On-going requiring the long-term Operation Plans Regulations Reports submitted to monitoring of the Town. stormwater practices with reports submitted annually to the town. Quantify the number work with UCONN Review of mapping to of interjurisdictional NEMO prepare identify to draft 4-9 lnterjurisdictional connections that agreements with On-going interju risd ictiona I DPW On-going On-going Agreements exist adjacent municipalities stormwater discharges and other agencies as / connections required
72 4.2 Describe any Construction Site Runoff Control activities planned for the next year, if applicable.
t. Require Engineer or qualified professionalto conduct E & S inspections and to submit E & S monitoring reports from their contractors or engineers for sites that disturb more than 1 acre of land. Reports to be completed monthly and after rainfall events of more than 1-inch.
13 5. Post-construction Stormwater Management (Section 6(oX5) / page 27)
5.1BMP Summary
Date Department completed or Activities in current Measurable / BMP Status Percon Due projected reporting period goal Additional details Responsible completion date Evaluation of existing Review sample Add to Article lV, Section regulations for LID Regulations 25 of the Zoning conformance to LID and Regulations regulations and incorporate determine revisions as into existing 5-1 Establish and/or update needed. Public Works legal authority and guidelines Design Manual ln regarding LID and runoff or zoning DPW Jul7,2O2I Jul1-,2O2I Progress reduction in site development regulations. planning Modify Zoning Regulations to include the required LID Measures from the permit. Currently require no Developers are required increase in runofffrom Modify Zoning to infiltrate roof leaders 5-2 Enforce LID/runoff proposed Regulations to for commercial and reduction requirements for developments and include the residential property, Ongoing DPW Jul 1,2019 Jul 1,2019 development and concurrence with the required LID where practical. redevelopment projects CT Stormwater Manual Measures from Additional infiltration is through our Land Use the permit. required where Application approvals. appropriate. List of public/private Add detention/retention 5-3(a) ldentify retention and detention/retention ponds to MS4 Mapping. ponds water detention ponds in priority Completed and Maintain list DPW Jul 1,2019 Jul1.,2Ot9 areas quality measures has been developed.
(TOWN) Town currently Complete list On-going maintains structures as of structures, Continue ongoing 5-3(b) lmplement long-term required. perform inspections and maintenance plan for inspections DPW Jul Jul 1, 2019 maintenance as required stormwater basins and 1,2019 treatment structures
74 (PRIVATE) Currently require Continue Ongoing owners of private review and stormwater systems to requirements Requested annual reports provide long term through Land for developments maintenance plans and Use approved and annual reports. Applications. constructed within last three years.
Continue updating Review CTDEEP Calculations complete. calculation of DCIA for lC Mapping and Continue to update as entire Town using calculate DCIA required. 5-4 DCIA mapping On-going DPW Completed Ongoing CTDEEP approved using the equations as posted on CTDEEP/EPA UCONN NEMO site Guidance Review projects Town currently reviews before, during, and project before, during, after construction. and after construction. Projects are not approved 5-5 Address erosion and Continue inspections Continue unless area is stabilized. sediment problems in areas On-going and make corrections review and DPW Ongoing Ongoing Cash Bonds are secured if with pollutants of concern as required and/or inspections work not completed and notify owners of released after work has deficiencies consistent been completed. with 5-3A & 5-38 above. Town Zoning Regulations currently limit impervious coverage to 4O%. Limits of tree clearing are strictly reviewed and limited. Continue to Current regulations Zoning Regs also allow for 5-6 Reduction in Turfed Areas Complete enforce DPW Ongoing Ongoing comply. smaller lot sizes in regulations. an effort to provide greater preservation and protection of open space and other valuable resources. Modify Zoning Stormwater Regulations to include management the required LID practices are 5-7 Consistency with Measures from the consistent with On-Going DPW Jul 1, 2018 Jul 1,2018 Stormwater Quality Manual permit. Article lV, the Section 25 - Stormwater Stormwater. Quality Manual.
15 Continue to actively The Town includes FVHD coordinate with local on all Land Use and Health Department Building Permit (FVHD) Continue to Applications to keep Town and 5-8 Coordination with Local I coordinate comments. Ongoing Health Department FVHD informed DPW Ongoing r FVHDcontactstheTown about ongoing ' regarding septic systems activities. in need of repair to I discuss viability of connecting to the Town l ' Sanitary Sewer System.
5.2 Describe any Post-Construction Stormwater Management activities planned for the next year, if applicable.
Continue requiring onnual stormwoter monitoring reports as part of Lond lJse Applicotions. Continue to require erosion and sedimentation control monitoring for active construction projects, Continue inspections of Town stormwater infrastrudure
5.3 Post-Construction Stormwater Management reporting metrics
Metrics
elsel i Connected lmpervious Area (DCIA) I ry !_zgt?)_ gifS]ty 165.4 acres (redevelopment I DCIA d!s9o11ec!e{ plus retrofits) Rgview and calculations on-going Retrofits completed 0 DCIA disconnected Review and calculations ongoing
Estimated cost of retrofits So Detention or retention ponds identified 22 that are Town owned / maintained
5.4 Briefly describe the method to be used to determine baseline DCIA. i
CT DEEP from EPA guidance on DCIA. lmplemented the use of the EPA formulas for calculating the DCIA.
L6 6. Pollution Prevention/Good Housekeeping (Section 6(oX6) / page 31)
6.1BMP Summary
Date Department Activities in current reporting completed or BMP Status goal period Measurable / Person Due projected Additional details Responsible completion date Weekly staff meetings with During 2020, due to Highway and Grounds gathering limitations employees to review Best imposed by COVID-L9 Management Practices, safety restrictions formal IDDE and general housekeeping training was not held. items. 6-1 Develop/implement lnstead, Highway and On- lndustrial General Permit and Attendance taken at each Grounds employees formal employee training DPW Jul On-going gorng MS4 Permit training session meeting. 1,2077 program - were notified during annually in the spring. their regular Monday safety meeting to be aware of possible illicit discharges and to report their supervisor.
Highway & Grounds Fuel system is part of Annual Fuel System Training - the Health and Safety every January; use of spill program. lt is prevention kits is reviewed Attendance taken at each inspected monthly by annually at training, kits are meeting. employees and ' inspected monthly. 6-2 lmplement M54 annually by an On- independent property and operations DPW Jul 1,2018 On-going going Hazardous Material program maintenance - subcontractor as SDS sheets are assembled and required by DEEP. kept at Highway garage. Sheets are reviewed quarterly at Safety Training.
Review of mapping to identify work with UCONN Quantify the number of interjurisdictional stormwater NEMO to prepare draft 5-3 lmplement interju risd ictiona I On- discharges / connections agreements with coordination with connections that exist and DPW On-going On-going going adjacent municipalities interconnected MS4s with which agency and other agencies as coordination is required. required
77 Obtained list of lndustrial Existing IDDE 5-4 Develop/implement General Permit registrants. program Ordinance in effect. to control other On- Reviewing list and comparing List of General Permit DPW On-going On-going Provides legal authority sources of pollutants to the Going to previous monitoring registrants. to pursue corrections MS4 locations and the results. to illicit discharges. Botterson Park Pond Reviewing use and Batterson Park Pond: Nitrogen and Phosphorus maintenance practices at The two schools have pollutant of concern. ldentified Town owned properties. very limited Town owned properties in Properties are limited to applications of watershed. (2) Schools. Remaining fertilizers or pesticides Town-owned properties on the athletic fields, in are Open Space. accordance with state Pequobuck River & Roarino regulations. Brook Town-owned properties Bacteria pollutant of concern are limited to Open Space Pequabuck River: ldentified Town owned and Westwoods Golf 6-5 Evaluate additional Westwoods Golf On- properties in watersheds Course. measures for discharges to Course has occasional going DPW On-going On-going impaired waters problems with geese congregation, they employ the use of noise-making devices to disperse the geese.
Roaring Brook: Town owned property within the watershed is limited to open space land left in its natural wooded state. Review Land Use Applications Modify Public Works Developed spreadsheet for 2O!9 - 8 redevelopment Design Manual to match of approved projects projects; all include infiltration permit requirements. and reviewed storm of the Water Quality Volume. drain improvements 6-6(a) Track projects that On- for Review of projects from Jul On-going each project. disconnect DCIA going DPW I,2Ot7 the last 5 years.
Review retrofit options at Town-owned properties Will review historic Tracking list annotated 6-5(b) lmplement retrofit Public/Private projects and with reduction On- projects to disconnect 2% track current projects to ensure percentages where going DPW Jul 7,202! On-going of DCIA DCIA reduction. applicable.
18 Highway Superintendent and Basins and systems in IDDE testing and outfall Director of Public Works need 6-7 lmplement of repair are mapping conducted to On- evaluate and prioritize addressed during roadway infrastructu re repair/reha b date has not found going DPW Jul 1.,2021. On-going program infrastructure repairs reconstruction projects, deficiencies in the and as needed to ensure current system. functionality of system. Existing DCIA for Farmington Determine town-owned calculated by watershed. land priority 6-8 Develop/implement within the On- Watershed areas then ranked areas for DCIA reduction. plan to identify/prioritize DPW Jul going by DCIA percentage L,2O20 On-going retrofit projects and areas Begin to formulate plan that drain to impaired for reductions / retrofits waterbodies. in priority areas. All municipally owned streets, parking lots parking and school 2020 sweeping activities 6-9 Develop/implement On- lots are swept annually each Completed occurred late March / DPW Jul'J.,20t7 street sweeping program gorng Annually spring. early April.
No basins were cleaned in L. Quantity of Annual spring calendar year 2020. Due to catch basins municipal street and COVID, budgets were cleaned. parking lot sweeping impacted, and limited 2. Volume of greatly reduces the expenditures were material volume of sediment implemented. removed. that can enter the Notification of 6-10 Develop/implement 3. drainage system and be On- infrastructure in catch basin cleaning Completed trapped in the catch gorng DPW JulL,2O20 program disrepair where Annually basin sumps. applicable. The contractor notes all infrastructure that is in disrepair and any basin that has an unusually large accumulation of sediment. Deicing material is stored in a covered barn / shed. Material used) is lce Be Gone by DRVN (l21t9l2O2Ol and plain salt. Volume of deicing agent 6-11 Develop/implement Employees receive material used per season On- Fall/ Winter snow management handling training each year DPW Jul 1,2018 going 2Ot7/2078 practices prior to the start of snow Lane miles treated per season. Deicing material is season dispersed with truck mounted sanders using the automated Cirus Controls.
19 Fertilizers are used sparingly at , Fertilizer and pesticide many municipal/school ; use rates for 2020 per properties. Pesticides are used ' manufacturer only when needed in : requirements. accordance with state laws Commercial Applicator Pesticide Use Summary Grass clippings are recycled Reports issued for 6-12 Develop / implement into the lawns. ' applications to Town On- Parks and Open Space r going owned land. DPW Jul 1,2018 ' On-going management procedures Leaf collection at all municipal / school lots are composted at i Leaf compost available to the Town's Leaf compost municipal residents at no- facility. cost at leaf compost facility. Majority of Town owned land in Farmington is left in natural forested state. Pet Waste disposal rmpiove pefwiiif , requirement signs are posted disposal signage. , at all parks and trails. i Educational material 6- 13 lmplement / enforce There are no dog parks in distributed to residents. On- pet waste management I Farmington. DPW lul 1 going 2Ot7 On-going r practices i There are no known pet waste : issues that pose an immediate i threat to wetlands or ' 'i waterbodies. Canada ceeif are known to I congregate at Westwoods Golf Continued use of noise- Course. making devices to 5-14 Develop implement disperse geese. / On- waterfowl management Noise-making devices are used DPW gorng Jul 7,2Ot7 On-going practices to disperse geese.
There is no known issue of feeding the geese. and Grounds: Ensure compliance with All vehicles stored inside. lndustrial Stormwater 5-15 Review and continue Vehicle maintenance is permits. implement plan for vehicle On- conducted at the Highway storage, maintenance, going DPW Jul7,2Ot7 On-going Garage. fueling, washing, etc. There is a Vehicle wash bay at the Highway Garage connected I
20 to the POTW through an oil/water separator. There is a vehicle fueling station for all municipal vehicles at the Highway Garage.
Police Dept. All vehicles are stored outside in a locked enclosure. Vehicle maintenance is conducted at contracted maintenance facilities. Police vehicle washing is done through a contract with a local vendor at an off-site location. Vehicle fueling takes place at the Highway Garage.
Fire Dept. All fire trucks are stored inside at the respective fire departments.
Fire truck maintenance is conducted off-site at contracted maintenance facilities.
Fire Truck Fueling occurs at the Highway Garage.
All other Municipal vehicles are stored outside; and are maintained off-site at contracted maintenance facilities.
Fueling occurs at the Highway l Garage. l l I
27 Leaf Collection conducted On- Town-wide Leaf Collection i annuallythrough the 5-16 Leaf Management DPW Jul 1, 2Ot7 On-going gorng program. i month of November along i , all municipal streets.
6.2 Describe any Pollution Prevention/Good Housekeeping activities planned for the next year, if applicable. ranuiry - [nnuaf ruef svste m Training Quarterly - Hazardous Material / Safety Mtgs Household Hazardous Waste Removal Day - three times Weekly safety meetings Stormwater Pollution Prevention Plan / MS4 training - annually in spring 6.3 Pollution Prevention/ Good Housekeeping reporting metrics
Metrics
Employee training provided for key staff (yes) / weekly & quarterly, Annual Fuel System Training, Annual lndustrial Permit, MS4 training. Street sweeping Yes
Curb miles swept miles volq4e_(o1 meqilgl 11atgt?] ggllqgted - tnc]y9er lYtyli.!gI_s.-nqd. roads and school lots 373.5 Catch basin No Tolal catch basing i1 priorily aleas 3510 Total catch basins in MS4 3515 Catch basins inspected: basins are inspected for disrepair at time of cleaning and 7629 throughout year by DPW personnel Catch basins cleaned: O (Due to COVID Budget Constraints) Volume (or mass) material of removed from all catch basins .0 cY Volume removed from catch basins to impaired waters (if known) - ocY Snow management Type(s) of deicing material used DRVN -"lce Be Gone" salt Salt Total material applied s61 y\9 s999on , -r_gn: lot ?oL.s,/ |Qlp _ r_ypS (gl ei c! n_q g.rp m-e3t u sed Tryc! mggnted spreade-r with Cirus Controls 9J _d 9 9 . Lane-miles treated 120 miles Snow location Tunxis Mead gravel parking lot when needed due to accum ufgtion. Stafftraining provided on application methods & equipment Yes/Annua lly prior to snow season.
22 Municipal turf management program actions (for permittee properties in basins with N/p impairments) (Eest Falf! and IAR are in the Batterson park pond Basin) Reduction in application of fertilizers (since start of permit) 0% Reduction in turf area (since start of permit) 0 acres Lands with high potential to contribute bacteria (dog parks, parks with open water, & sites with failing septic systems) (No Dog Parks, Batterson Pond Park - owned by City of Hartford, no public sites with failing septic systems.) Cost of mitigation actions/retrofits s 5.4 Catch basin cleaning program
Briefly describe the method used to optimize your catch basin inspection and cleaning schedule.
When fully funded the town has embarked on a program that cleans half of all catch basins in year 1 and the other half in year 2. During the catch basin cleaning process the basins are observed and items of disrepair noted for correction. This practice was successfully implemented in2014,2015and2015' ln2O1-T,theStatebudgetissuesandultimatereductioninfundingtotheTownofFarmingtonnecessitatedadrastic change to this program. The catch basins cleaned aligned with those that were located on the roads that were repaved during the 2017 constructionseason.63basinswerecleanedin2OLT.ln20L8alackoffundingcontributedtoareductioninthenumberofcatchbasins cleaned.20catchbasinswerecleanedin2018. ln20lgapproximately25%ofthetown'scatchbasinswerecleaned. Thebasinswerelocated in the southwest quadrant of town, including the industrial areas of Spring Lane and Hyde Road. ln 2020 due to COVID and the freezing of expenditures, there were no catch basins cleaned. The town plans to continue to clean catch basins each year on a rotating basis. Additionally, catch basin inspections are performed throughout the year by DPW personnel.
5.5 Retrofit program
Briefly describe the Retrofit Program identification and prioritization process, the projects selected for implementation, the rationale for the selection of those proiects and the total DCIA to be disconnected upon completion of each project. [Provide information if available in 2018 report. Section to be completed for the 2019 Annual Report.
Work on this section commenced in 2018 and has been optimized in 2019 with the updated impervious coverage numbers available on the NEMO website. The Town of Farmington has calculated the baseline DCIA utilizing the equations posted on the CT NEMO website. The Town of Farmington used the equations to estimate the DCIA based on the land use in each basin. The basins were then ranked from highest DCIA percentage to lowest and the basins that drain to an impaired waterbody were highlighted and were also moved to the top of the list. The next tasks will involve the Town of Farmington reviewing the list, determining where town owned property is located within the priority areas and evaluating the opportunity for retrofit projects. The Town will then review options for appropriate retrofit projects.
23 Proiect Options Private Development: New / rehab / renovation/ expansion projects - require the implementation of low impact design or underground infiltration lnfiltrate roof runoff. Use deep sump catch basins and perforated pipe between basins to allow the infiltration of the water quality volume. Use at-grade or underground infiltration systems for stormwater management.
Possible locations: Review on a case by case basis with the receipt of land use applications. Ensure zoning regulations require the infiltration of the water quality volume.
Public Development: Town owned properties: Renovations on town owned properties may implement the use of perforated pipe between basins and/or drainage swales prior to dischar:ging to the closed drainage system, wetland or watercourse.
Roadway projects: Review drainage system and where practical implement an opportunity for the drainage to discharge to a swale or basin prior to connecting to wetland or watercourse to provide an opportunity for the stormwater to infiltrate prior to discharging to the wetland or watercourse.
Consider the use of perforated drain pipe in areas with suitable soil conditions and in areas that would not be detrimental to adjacent utilities.
Possible locations: Potential projects on Town owned land - new or renovated fire stations; new high school
Potential roadway projects - any full depth roadway reconstruction project - possible location: South Rd at Two Mile Road
Describe plans for continuing the Retrofit program and how to achieve a goal of L% DCIA disconnection in future years. [Provide information if available in 2018 report. Section to be completed for the 2019 Annual Report.l
24 The goal of achievin g a I% DCIA disconnection in years 4 and 5 of the permit will be accomplished through a combination of redevelopment projects and retrofit projects, as projects become available through the permitting process. This will involve a combination of private and public projects.
plans Describe for continuing the Retrofit program beyond this permit term with the goal to disconnect 1% DCIA annually over the next S years. [provide information if ' available in 2018 report. Section to be completed for the 2019 Annual Report.l
The goal of achievin g a L% DCIA disconnection in the 5 years following the permit will be accomplished through a combination of redevelopment projects and retrofit projects, as projects become available through the permitting process. This will involve a combination of private and public projects.
25 Part ll: lmpaired waters investigation and monitoring [This section required beginning with 2019 Annual Reportl
1. lmpaired waters investigation and monitoring program
1.1 lndicate which stormwater pollutant(s) of concern occur(s) in your municipality or institution. This data is available on the MS4 map viewer: http://s.uconn.edu/ctms4map.
Nitrogen/ Phosphorus ffi Bacteria I Mercury ! Other pollutant of Concern I
1.2 Describe program status
Discuss 1) the status of monitoring work completed, 2) a summary of the results and any notable findings, and 3) any changes to the Stormwater Management Plan based on monltoring results.
Town had commenced wet weather sampling of impaired waterbodies in April 2018. lnitial focus was to review the Batterson Park Pond area (Basin 440L-00-1-11). Sampling consisted of (8) outlets flowing immediately upstream of the pond. Of the (8) samples (2) were found to exceed Total Nitrogen (N) which is one of the two pollutants of concerns. The storm drainage connects to multiple properties with large professional office developments.
2. Screening data for outfalls to impaired waterbodies (Section 6(iX1) / paee 4I)
2.1 Screening data
Complete the table below for any outfalls screened during the reporting period. Each Annual Report will add on to the previous year's screening data showing a cumulative list of outfall screening data.
Parameter (Nitrogen, : Name of Sample Follow-up required? Outfall lD Phosphorus, Bacteria, Resu Its Laboratory (if date or Other pollutant of I used) concern) Total N <1.7 mg/L Tunxis D4-007s 4/2s/78 Nitrogen/Phosphorus No Total P=0.108mg/L Laboratories Total N=3.8mg/L Tunxis GGG-0075 4/2s/t8 Nitrogen/Phosphorus Yes Total P=0.06me/L Laboratories Total N =2.7 mg/L Tunxis PPP-075 4/2s/18 Nitrogen/Phosphorus Yes Total P=0.080mg/L Laboratories Total N <1.7 mg/L Tunxis F4-0075 4/2s/L8 N itrogen/Phosphorus No Total P = O.O74mg/L Laboratories Total N <1.7 mg/L Tu nxis G4-0075 4/2s/78 N itrogen/Phosphorus No Total P = O.O92mg/L Laboratories Total N Provide the following information for outfalls exceeding the pollutant threshold. Outfall of drainage area investigation to Contact has been made with lnvestigation of outfall drainage area continues. Area located in owners/property management to discuss GGG-0075 ' Professional Office Zone with multiple properties. lawn care and work to develop acceptable BMP's and IPM Plan. Contact has been made with lnvestigation of outfall drainage area continues. Area located in owners/property management to discuss PPP-075 Professional Office Zone with multiple properties. lawn care and work to develop acceptable BMP's and IPM Plan. 4. Prioritized outfall monitoring (Section 6(iXL)(D)/ page a3) Once outfall screening has been completed for at least 50% of outfalls to impaired waters, identify 6 of the highest contributors of any pollutants of concern. Begin monitoring these outfalls on an annual basis by July t,2O2t. Outfall Date Parameter{s) l Results Name of Laboratory (if used) I i -INU@T IRIEQUIIIRIED G Part lll: Additional IDDE Program Data [This section required beginning with 2019 Annual Report] 1. Assessment and Priority Ranking of Catchments data (Appendix B (AX7Xc) / page 5) Provide a list of all catchments with ranking results (DEEP basins may be used instead of manual catchment delineations). 1, Catchment lD 2. Category 3. Rank (DEEP Basin lD) Comments Dense Zoning. Past testing of outlet DDD-0190 (Lakeshore/Brickyard) revealed high 4300-28-L-L2 Hieh t bacteria/coliform inspections and further inves-tigations has not revealed cause. Very old sanitary sewers in UNVL center area. Potential for l/1. High DctA. old 4300-00-4+R15 High 2 commercia I development area. Large area of older manufacturing uses. High DCIA. Most other areas consist of areas with modern sanitary sewers and manufacturing uses. Located within the Aquifer 4315-t3-2-L2 High 3 Protection Zone. 4314-09-I High 4 High DCIA. Area fully sewered. Mostly sewered. Concerns with Fairview Drive and Orchard Road area with no sanitary sewer and history of septic system repairs and failures. (Proposed sewer 4401-oo-1,-L2 High project declined by neigh borhood.) High DCIA. Area fully sewered. Many modern residential developments with 4315-13-1 High stormwater quality control. Should review older manufacturing on Spring Lane. High DCIA. Most area along Rte 4 is under State of CT control. Fully sewered. Many commercial developments with modern stormwater quality controls. Should review 4403-04-t-Lt High 7 older commercial developments along north side of Farmington Avenue. 4300-20-1,-L2 High 8 Residential developments. Fully sewered. Very dense zoning. Drains to Lake Garda. Mostly sewered. Concerns with Woodruff/Ridgeview/ and Woodpond areas area 4403-O1,-L High 9 with no sanitary sewer and history of septic system repairs and failures. 4300-00-5+R1 High 10 Very old sanitary sewers. Potential for l/1. High DCIA. 4315-00-4-R5 High TL Mainly residential developments. Limited public sewer 4315-15-1 High t2 Very old sanitary sewers. Potential for l/1. High DCIA. 440L-O0-1,-Lt High 13 Old residential developments. Fully sewered. 4315-13-1-11 High L4 Mainly residential developments. Mostly sewered. 431s-00-4-R6 High 15 Mainly residential developments. Limited sewer availability. 4300-00-4+R16 Low 16 Fully sewered and no signs of illicit discharges. 4300-20-2-R1 Low 17 Fully Sewered. Large Open Space Area. 4312-OO-2-R2 Low 18 Mostly private and State of CT outlets. 4403-00-1-11 Low 19 Fully Sewered. Large Open Space Areas. Fully sewered. Large golf course. Limited storm drainage outlets. Many drywells 4300-28-1 Low 20 located along edge of road in Devonwood sections. 4300-20-t Low 2L Mostly sewered. Large area of Open Space. 4300-21-L Low 22 Mostly sewered. Large areas of Open Space. 4300-26-L Low 23 Mostly sewered. Large area of Open Space. Limited number of storm outlets. Fully sewered. Limited number of storm drainage outlets. Many drywells located 4300-28-1-11 Low 24 along edge of road in Devonwood sections. Large Open Space Area. 4300-00-4+R14 Low 25 Fully sewered. Modern residential construction with stormwater quality controls. 4300-25-t Low 26 Fully sewered. Large areas of Open Space. Limited number of storm drainage outlets. 4300-27-t Low 27 No sewer. Large residential zoning. Large golf course. Limited number of storm drainage outlets. Drywells located along 4300-00-5+R4 Low 28 edge of road in Devonwood sections. 4300-00-5+R3 Low 29 No sewer. Large residentialzoning. Limited number of storm drainage outlets. 4315-!4-t-LL Low 30 Mostly sewered. Large amounts of Open Space. 4300-29-1, Low 31 No sewer. Large residential zoning. Limited number of storm drainage outlets. 4300-00-4+R17 Low 32 Fully sewered. Large areas of Open Space, Parks, and athletic fields. 4403-O2-t Low 33 No sewer. Large residential zoning. Limited number of storm drainage outlets. Large amounts of Open Space. Large Residential Zoning. Fully sewered. Only (2) 5200-0L-1 Low 34 storm outlets with no signs of illicit discharges. Mostly sewered. Large areas of Open Space. Large recent residentialdevelopment 4300-22-2-RL Low 35 with stormwater quality controls. Large amounts of Open Space and undevelopable land. No sewers, however no signs 4315-15-1-11 Low 36 of any illicit discharges to storm. 4403-O2-r-Lt Low 37 Large areas of open reserved farmland. only one storm drainage outlet. 4403-OO-7-L2 Low 38 No sewer. Only (2)storm drainage outlets. 440r-02-t Excluded 39 Majority of area outside of Farmington. No Town owned outlet's Majority of area outside of Farmington. No business's or other areas for illicit 4401-oL-1, Excluded 40 discharges. 431.5-14-t Excluded 41 High DCIA. Area fully sewered. No Town stormwater outlets. 4315-tt-L Excluded 42 Area fully sewered. No Town stormwater outlets. 4300-20-3-R1 Excluded 43 No Town owned storm drainage outlet's Majority of area outside of Farmington. No business's or other areas for illicit 4300-23-r Excluded 44 discharges. 4315-13-2-R1 Excluded 45 No storm drainage inlets/outlets. No Development at this time. Majority of area outside of Farmington. No business's or other areas for illicit 4300-00-4+R13 Excluded 46 discharges. Large areas of open reserved farmland. Only one storm drainage outlet. No potential 4300-00-5+R5 Excluded 47 for illicit discharges. Large golf course. Only one storm drainage outlet (cross culvert). No potential for 4300-00-5+R2 Excluded 48 illicit discharges. 5200-00-1-11 Excluded 49 Open Space Area. No business's or other areas for illicit discharges. Majority of area outside of Farmington. No business's or other areas for illicit 4300-24-1, Excluded 50 discharges. Majority of area outside of Farmington. No business's or other areas for illicit 4300-22-1, Excluded 51 discharges. 2. Outfall and lnterconnection Screening and Sampling data (Appendix B (AXTXdl / paeeT) 2.1Dry weather screening and sampling data from outfalls and interconnections Provide sample data for outfalls where flow is observed. Only include Pollutant of concern data for outfalls that discha rge into stormwater impaired waterbodies. Outfall/ Screening / E. coli or Water Pollutant lnterconnection Ammonia Chlorine Conductivity Salinity lf required, follow-up actions sample date I Surfactants ID enterococcus Temp of concern taken *NOTE: We have commenced dry-weather outlet sampling and have sampled approximately 60% of the outlets. At this time we have not experienced any outlets with any unknown flow. 2.2 Wet weather sample and inspection data Provide sample data for outfalls and key junction manholes of any catchment area with at least one System Vulnerability Factor. Outfall / ti"r.onn"oion lamnle Ammonia chlorine conductivity Salinity surfactants water Temp pollutant of concern lD date :;;:[:..r, *NOTE: We have commenced dry-weather outlet sampling and have sampled approximately 6o%of the outlets. At this time we have not experienced any outlets with any unknown flow. 3. Catchment Investigation data (Appendix B (AX7Xe)/ page 9) 3.1 System Vulnerability Factor Summary For those catchments being investigated for illicit discharges (i.e. categorized as high priority, low priority, or problem) document the presence or absence of System Vulnerability Factors (SVF). lf present, report which SVF's were identified. An example is provided below. Outfall Receiving Water System Vulnerability Factors ID *NOTE: At this time we are currently focusing on completion of dry-weather sampling before any illicit discharge investigation can begin. Where SVFs are: L. History of SSOs, including, but not limited to, those resulting from wet weather, high water table, or fat/oil/grease blockages. 2. Sewer pump/lift stations, siphons, or known sanitary sewer restrictions where power/equipment failures or blockages could readily result in SSOs. 3. lnadequate sanitary sewer level of service (LOS) resulting in regular surcharging, customer back-ups, or frequent customer complaints. 4. Common or twin-invert manholes serving storm and sanitary sewer alignments. 5. Common trench construction serving both storm and sanitary sewer alignments. 6. Crossings of storm and sanitary sewer alignments. 7. Sanitary sewer alignments known or suspected to have been constructed with an underdrain system; investigations. 9. Areas formerly served by combined sewer systems. 10. Any sanitary sewer and storm drain infrastructure greater than 40 years old in medium and densely developed areas. area rather that poor owner maintenance). other physical constraints of the area rather that poor owner maintenance). 3.2 Key junction manhole dry weather screening and sampling data ui'.::rl evidence [?"'il:'""- ::::::i"F { "JI':"ry Ammonia Chlorine Surfactants 6- Sample date of illicit discharge None at this time 3.3 Wet weather investigation outfall sampling data Outfall- lD Sample date Ammonia Chlorine Surfactants None at this time 3.4 Data for each illicit discharge source confirmed through the catchment investigation procedure Date of Mitigation or enforcement action Estimated Discharge Source Method of Date of Discharge description elimination volume location location discovery discovery of flow removed None at this time Part lV: Certification ' "l have personally examined and am familiar with the information submitted in this document and all attachments thereto, and I certify that, based on reasonable investigation, including my inquiry of those individuals responsible for obtaining the information, the submitted information is true, accurate and complete to the best of my knowledge and belief. I understand that a false statement made in this document or its attachments may be punishable as a criminal : offense, in accordance with Sectio n 22a-6 of the Connecticut General Statutes, pursuant to Section 53a-157b of the Itonnecticut General Statutes, and in accordance with any other applicable statute." I Ctriet Elected Official or Principal Executive Officer Document Prepared by name: Print name: d W*It ht. e,"tlr(,l- Signature / Date: tw & hbnt'*