Water Pollution Control Authority

Regular Meeting

Norwalk, CT · May 19, 2025

Minutes

CITY OF NORWALK WATER POLLUTION CONTROL AUTHORITY VIA ZOOM VIRTUAL VIDEOCONFERENCE AND TELECONFERENCE REGULAR MEETING May 19, 2025 Attendance: Darren Oustafine, Chairman John Igneri, Vice Chairman Chris Mannella John Bove Barbara Smyth Heather Dunn Staff: Ralph Kolb, WPCA Senior Environmental Engineer Chris Torre, Superintendent, DPW Christine Pacelli, Wastewater Systems Manager Mario Pizighelli, Stormwater Systems Manager Wilber Giron, DPW Permit Engineer Others: Trever Steeprock, Project Manager, Veolia, Inc. Ross Gambino, Asst. Project Manager, Veolia, Inc. Regina Flaherty, Verrill Law I. CALL TO ORDER Mr. Oustafine called the meeting to order at 5:30 PM. II. ROLL CALL Mr. Oustafine called the roll; all those listed in attendance were present. III. PUBLIC HEARING A. PROPOSED SANITARY SEWER EXTENSION- 2 MULLER AVENUE, NORWALK, CT. (DRAWING AND NOTICE INCLUDED) Mr. Oustafine opened the public hearing at 5:31 PM. Nick Wendle Mr. Wendle said he is speaking on behalf of Shawn’s Lawns regarding the application to tie into the sewer from their property located on 2 Muller Avenue. This is per the conditions for their special use permit; they have begun some of the work inside the 1 property line and are now at the point where they will need to tie into the sewer, including adding two manholes and connecting to the sewer on Pulaski Street. B. SANITARY SEWER EXTENSION REQUEST ON BOUTON ST., NORWALK, CT. (NOTICE INCLUDED) Santos Martinez- 184 Bouton Street Mr. Martinez said the stretch of road at the end of Bouton Street had been left on septic, and it is here to petition to extend the sewer to the end of the street. The septic systems are old, and there is an issue with the water table being high in the area. The water comes from Brien McMahon High School, and he does not think the storm drainage is working correctly. He said they had hired an engineer to assess the issue and recommended the sewer extension, which would benefit the homeowner and the city because they could add or modify the houses on the properties. He said the last house on the street is struggling because it is located next to a swamp, which has seen more water flow recently, and water is a big issue for all of them. He read the following from the licensed engineer who performed the study: As a licensed engineer, it is his responsibility to help the public. This office highly recommends helping the residents on Bouton Street, as this is a health-related issue. Therefore, he believes the sewer extension would help the residents and the city. Sean Rosa- 178 Bouton Street Mr. Rosa said he has lived at 178 Bouton Street for a couple of decades and said it wasn’t that bad 20 years ago, but when the field was redone at Brien McMahon High School, it has consistently been getting worse over the past 12 years. He said it is bad for his neighbor at 122 Bouton Street, and she has a river. Not having a sewer system is hurting the area. Silvia Perez- 188 Bouton Street Ms. Perez said she lives in the last house on the street and has a big problem because of a swamp. It is very bad in the winter because of ice, and it is also bad in the summer. Because of the septic tanks, there are a lot of mosquitoes, and they would like to sit outside, but the odor is very bad. Mr. Oustafine closed the public hearing at 5:42 PM. 2 IV. ACCEPTANCE OF MINUTES A. REGULAR MEETING- APRIL 21, 2025 ** MR. IGNERI MOVED TO APPROVE THE MINUTES AS SUBMITTED. ** THE MOTION PASSED UNANIMOUSLY. V. PUBLIC PARTICIPATION There were no public comments this evening. V. NEW BUSINESS A. APPROVE THE PROPOSED SANITARY SEWER EXTENSION AT 2 MULLER AVENUE. THROUGH TECHNICAL ANALYSIS, IT WAS CONFIRMED THAT THE CITY’S SANITARY SEWER COLLECTION SYSTEM AND WASTEWATER TREATMENT PLANT CAN ACCOMMODATE THE ADDITIONAL SANITARY SEWER FLOW GENERATED FROM THE PROPOSED CONNECTIONS. THE PROPOSED SANITARY SEWER EXTENSION SHALL BE CONSTRUCTED IN ACCORDANCE WITH DPW AND WPCA SANITARY SEWER PERMIT PROCESS AND SANITARY SEWER MAIN EXTENSION POLICY (ADOPTED JULY 7, 2021) AND BE REFERRED BACK TO THE WPCA BOARD FOR FINAL ACCEPTANCE (DRAWING ATTACHED) Mr. Giron said this item related to the first public hearing we heard this evening. Staff have nothing new to add but are happy to entertain any questions the board may have. Ms. Smyth thanked Ms. Dunn for her memory and pointed out that Shawn’s Lawn was removed from the bid process for the South Norwalk School last February due to the unsolved zoning and conservation commission violations. She has concerns about this and would like to be assured that the zoning and conservation violations have been rectified, or if the applicant has information that this would not be an issue for this project. Mr. Wendle said this is part of that problem, and as part of the special use permit, they have to tie into the sewer, because all of the issues put forth on the plan at the time were not satisfied, so they were rejected. He provided background and said this parcel was approved for a construction yard through eminent domain; however, they could not get a mortgage due to prior contamination. They bought the property, and these conditions existed. They have been trying to 3 get through the process, and he has been working with Mr. Giron and Ms. Cherichetti, and they have been very helpful. Ms. Smyth said that if this is approved this evening, it will go to the Planning and Zoning Commission, which has been following along with their problems and moving through this to rectify them. Mr. Wendle said that he believes they are aware of it, as they require the property to be tied into the sewer. Mr. Giron noted that the Planning and Zoning had notified DPW of this outstanding violation, and to comply, they must connect to the sanitary sewer. Mr. Oustafine asked whether the applicant would be responsible for installing their own laterals. Mr. Giron said it is correct, and through the WPCA permit process, the applicant would install the sanitary sewer on their property. Through the DPW permit process, they would extend the main and make the connection at the main. Mr. Oustafine asked if Shawn’s Lawn would be responsible for paying for the entire sewer extension. Mr. Giron said, “Yes,” that is correct, and the intent is for Shawn’s Lawn to donate the sewer main infrastructure to the city to be accepted once it has been installed, inspected, and confirmed that it meets our requirements. Mr. Oustafine asked if there was a written agreement. Mr. Giron said that information is spelled out in the sewer extension policy, and that is what has been followed through this process. Mr. Oustafine asked if a bond would be required. Mr. Giron said, “Yes.” Should the Common Council approve this, the work will be performed under the permit process, where a bond is equivalent to the construction cost, so the city is secured. Mr. Oustafine said to review that there is capacity in the line and the sewer system, which will not cost the WPCA or the rate payers of Norwalk. The developer-contractor and/or property owner will bear all costs, and the road will be returned to DPW standards. Mr. Giron said, “Yes,” that is correct, and as a requirement of the permit process, they are required to backfill with a temporary trench, and DPW bills the restoration and performs the final restoration through the road restoration contract. Mr. Oustafine asked who would be inspecting the work. Mr. Giron said the DPW permit staff will have an inspector on site to confirm the sewer extension is installed correctly, and the applicant will test the main, but DPW staff will be present when testing. ** MR. FRAYER MOVED TO APPROVE ITEM. *THE MOTION PASSED UNANIMOUSLY. B. REFERRAL OF ITEM A. TO PLANNING COMMISSION FOR REPORT AND RECOMMEND ACTION PURSUANT TO CONN. GEN. STAT. 8-24 ** MR. FRAYER MOVED TO APPROVE ITEM. *THE MOTION PASSED UNANIMOUSLY. C. REFERRAL OF ITEM A. TO PUBLIC WORKS COMMITTEE OF THE COMMON COUNCIL FOR APPROVAL FOR THE PROPOSED SANITARY SEWER EXTENSION. 4 ** MR. FRAYER MOVED TO APPROVE ITEM. *THE MOTION PASSED UNANIMOUSLY. D. AUTHORIZE THE CHIEF OF OPERATIONS AND PUBLIC WORKS TO EXECUTE ORDER ON CONTRACT WITH INSITUFORM TECHNOLOGIES, LLC. FOR THE SANITARY SEWER REHABILITATION PROJECT (PROJECT: WPCA: 2023-01) FOR AN AMOUNT NOT TO EXCEED $300,000 ACCOUNT NO. 09244062-5777-C0361 Mr. Kolb reviewed the breakdown of what the $300,000 will cover and said the project's total cost is approximately six million dollars. He anticipates the project closing out at the end of September. ** MR. FRAYER MOVED TO APPROVE ITEM. ** THE MOTION PASSED UNANIMOUSLY. VII. OLD BUSINESS A. Contract Operations Report 1. Veolia Monthly Operating Report- April 2025 (copy included) Mr. Steeprock reported that in April, the Veolia collections system team completed 2.40 miles of TV inspection, 4.50 miles of sewer cleaning, 43 manhole inspections, 2.95 miles of SL Rat, responded to 20 service calls, and cleaned all four final settling tank launders and both chlorine contact tanks. The IPP inspection program conducted 28 inspections. Mr. Steeprock said new pipes and sprayers were installed in the anoxic zone of aerating tank #3 to minimize scum build-up. Mr. Steeprock noted that Norwalk experienced moderate-heavy rain of over 2” without the storm outfall activating. The wastewater treatment plant and the collections system performed very well, with a good recovery time in the collections system, which they could monitor through the smart covers. All the lining that has been done seems to be making an impact. Mr. Steeprock said the nitrogen performance for April was 587 pounds per day. Mr. Steeprock said all permit requirements were followed for April, and all required reports were submitted to the CTDEEP and the EPA. 2. Draft 2024 Nitrogen Credit Exchange Buyers and Sellers (copy included) 5 Mr. Steeprock said that Norwalk came in at an average of 680 pounds per day/month, putting Norwalk 15th in the state. This is worse than in previous years due to the transition of staff and management over the past year and the wet weather. However, it is still a good result, and the commission will receive an estimated $33,685 when it buys the credits. This year, they are trending significantly lower than the beginning of last year. 3. Major Repair or Replacement/ Out of Scope Items: a. Pump Station Electric Wiring- SCADA (copy included) Mr. Steeprock said the additional wiring is a project they are doing with the WPCA. The intent is to install current monitoring and wiring for eight pump stations, which will give additional information back to SCADA and can be used for troubleshooting and energy consumption monitoring. The project has been approved and should begin next week. B. REPORTS: FY 24/25 REVENUES/EXPENDITURES MUNIS REPORTS (COPY INCLUDED) There was no discussion. C. DISCUSSION ON WPCA ENGINEERING PROJECTS: 1. DISCUSSION OF SANITARY SEWER EXTENSION REQUEST ON BOUTON STREET (PRESENTATION INCLUDED) Mr. Kolb said that, as discussed in the public hearing earlier this evening, various property owners on Bouton Street approached the WPCA to request a sanitary sewer extension. He presented an overview of the request and the residents' concerns. The original extension scope in 2021 was approximately 330’, and the new request would be approximately 850’ of 8” gravity main sewer along with four manholes and 10 sewer laterals. Mr. Kolb presented the location map and proposed sanitary sewer extension request. The WPCA team estimated the project to be between 1.6 million and 2.4 million dollars, depending on the unknowns based on site conditions, current bids for comparable estimates, and total construction. Ms. Flaherty discussed the process required to assess the benefits of new sewer lines. Mr. Kolb shared the WPCA future capital projects that were submitted to the CT DEEP as part of the Consent Order, the Collection System Master Plan, and Facility Plan, which will need to be committed to once the CT DEEP comes back to the WPCA and plans for which the 5-year and 10-year clock begins. Staff are looking for direction from the board on how to proceed. 6 Ms. Dunn said there were current issues regarding blight in the area and asked which property. Mr. Martinez said that it is in every vacant lot. Ms. Dunn suggested some city insights into the area may be helpful. Mr. Frayer asked if this had been reported to the blight officer. Mr. Martinez said he has contacted the city’s customer service many times over the years, and DPW has cleaned the area numerous times. Mr. Oustafine asked who would be responsible for paying for the sewer extension as it is difficult for him to imagine how one of the properties would be benefited by $240,000 so he does not see how the WPCA could support this except if the residents are willing to absorb that cost, which is a lot of money. Mr. Martinez said they did not imagine it would cost that much, which does not include the cost to connect each of the properties. Mr. Oustafine said he knows the benefit of a sewer and the issues related to older septic systems and inundation with drainage, and suggested that the money may be better spent solving the drainage problem, if there is one, but he doesn’t see a road forward due to the cost. Mr. Oustafine asked if city staff determined the cost estimate. Mr. Kolb said “Yes” and devised the cost estimate using recent bids for DPW/WPCA projects. Mr. Mannella asked if there is city water in the area. Mr. Martinez said, “Yes.” Mr. Frayer said if this is the only approach and this is the cost, he would have to say “No” because the city can’t afford to start installing these types of installations. Mr. Oustafine suggested that the board's direction to staff is to try to reduce the project's cost, with some of the alternatives that have been discussed. 2. BEACON STREET SANITARY SEWER Mr. Pizighelli said the Beacon Street sanitary sewer project was recently put out to bid, and there will be a bid opening on June 11, 2025. The timetable for construction will be approximately 365 working days. 3. HUBBELL’S LANE RELIEF SEWER Ms. Pacelli said the Hubbell’s Lane sewer relief project is progressing to 90% design and will meet this week to discuss the East Wall Street and East Avenue intersection, which needs to be redesigned due to some utility issues. 4. FINAL SETTLING TANKS Ms. Pacelli said the design of the final settling tanks is progressing toward a 10% to 30% design. D. DISCUSSION ON WPCA CONSTRUCTION PROJECTS: 1. COLLECTION- SAMMIS AND BELL ISLAND SEWERSHED REHABILITATION 7 Mr. Kolb said much progress has been made with the Sammis and Bell Island sewershed rehabilitation project. The total project is just over 70,000 linear feet of pipe at various sizes, ranging from 8” to 24”, and almost 65,000 linear feet have been completed, so we are at 92% complete. Insituform is currently doing manhole rehabilitation and later grounding, which is approximately 44% of those items, and as mentioned earlier, the project should be completed by September 30, 2025. 2. PS- OLD TROLLEY WAY SITE IMPROVEMENTS Ms. Pacelli said the Old Trolley Way pump station site improvement has begun, and all permits have been submitted and approved. 3. PS- FORT POINT IMPROVEMENTS Ms. Pacelli said the WPCA team has been coordinating with the Walk Bridge team to discuss the coordination efforts to begin the improvements at the Fort Point pump station. 4. SEWER USE APPEALS/ADJUSTMENTS UPDATE Ms. Pacelli said the sewer use appeals/adjustments to date are $82,724. VIII. DISCUSSION There was no discussion this evening. IX. ADJOURNMENT ** MR. BOVE MOVED TO ADJOURN ** THE MOTION PASSED UNANIMOUSLY. The meeting was adjourned at 6:53 PM. Respectfully submitted, Dilene Byrd 8

Agenda

Packet

REGULAR MEETING – WATER POLLUTION CONTROL AUTHORITY AGENDA MAY 19, 2025, 5:30 PM BY ZOOM VIRTUAL MEETING To allow public access, anyone may access a meeting by telephone and/or Zoom, or a recording in the City of Norwalk YouTube channel. Specific instructions and links can be found at norwalkct.gov/meetings. Members of the public may call in to participate. Callers will not be able to see the meeting participants. All participants will be muted upon entering the meeting. To speak, dial *9 on the phone and you will be called on by the host of the meeting during the public comment section. All speakers must state their name and address. Comments must be on a topic on the agenda, and are limited to three minutes. Anyone disrupting the orderly conduct of the meeting, including by using threatening, hateful, or sexually-explicit language, will be removed. Please find the information using the link above. Members of the public who wish to provide "live comments" may also use the Zoom meeting platform. All participants will be muted upon entering the meeting. To speak, click the “raise your hand indicator” and you will be called by the host of the meeting during the public comment section. All speakers must state their name and address. Comments must be on a topic on the agenda, and are limited to three minutes. Anyone disrupting the orderly conduct of the meeting, including by using threatening, hateful, or sexually-explicit language, will be removed. Please find the information using the link above. Members of the public who wish to provide public comment are encouraged to submit those via email in advance of the meeting. For these comments to be included into the record, they must be submitted by 12:00 p.m. the day of the meeting. Please email Dilene Byrd at dbyrd@norwalkct.gov with the subject line “Public Comment” to provide written public comment prior to the meeting. I. CALL TO ORDER II. ROLL CALL III. PUBLIC HEARING A. Proposed sanitary sewer extension for 2 Muller Avenue, Norwalk, Ct (drawing and notice included) B. Sanitary sewer extension Request on Bouton St, Norwalk, Ct (notice included) IV. ACCEPTANCE OF MINUTES A. Regular Meeting: April 21, 2025 V. PUBLIC PARTICIPATION VI. NEW BUSINESS Page 1 of 40 A. Approve the proposed sanitary sewer extension at 2 Muller Avenue. Through technical analyses, it was confirmed that the City’s sanitary sewer collection system and wastewater treatment plant can accommodate the additional sanitary sewer flow generated from the proposed connections. The proposed sanitary sewer extension shall be constructed in accordance with DPW and WPCA Sanitary Sewer Permit Process and Sanitary Sewer Main Extension Policy (adopted July 7, 2021) and be referred back to the WPCA Board for final acceptance (drawing attached). B. Referral of item A. to Planning Commission for report and recommend action pursuant to Conn. Gen. Stat. § 8-24 C. Referral of item A. to Public Works Committee of the Common Council for approval for the proposed sanitary sewer extension D. Authorize the Chief of Operations and Public Works to execute orders on contract with Insituform Technologies, LLC for the Sanitary Sewer Rehabilitation Project (Project: WPCA 2023-01) for an amount not to exceed $300,000. Account No. 09244062-5777-C0361 VII. OLD BUSINESS A. 1. Contract Operations Report: 1. Veolia Monthly Operating Report- April 2025 (copy included) 2. Draft 2024 Nitrogen Credit Exchange Buyers and Sellers (copy included) 3. Major Repair or Replacement/Out of Scope Items: a. Pump Station Electric Wiring - SCADA (copy included) B. Reports: FY 24/25 Revenues/Expenditures MUNIS Reports (copy included) C. Discussion on WPCA Engineering Projects: 1. Discussion of sanitary sewer extension request on Bounton Street (presentation included) 2. Beacon Street Sanitary Sewer 3. Hubbell's Lane Relief Sewer 4. Final Settling Tank D. Discussion on WPCA Construction Projects: 1. Collection - Sammis and Bell Island Sewershed Rehabilitation 2. PS - Old Trolley Way Site Improvements 3. PS- Fort Point Improvements E. Sewer Use Appeals/Adjustments Update VIII. DISCUSSION UPCOMING MEETINGS Page 2 of 40 IX. ADJOURNMENT Page 3 of 40 *LEGAL NOTICE* The Water Pollution Control Authority (WPCA) Board will hold a public hearing via Zoom Teleconference on May 19, 2025 at 5:30pm on the following application: SANITARY SEWER EXTENSION APPLICATION: 2 Muller Avenue - Shawn's Lawns – The developer proposes to extend the sanitary sewer main located on Muller Avenue to serve the listed parcel. The work shall be performed by the developer and the City shall accept the extended sewer main if final completed installation is satisfactory to the Department of Public Works. At this hearing interested persons may be heard and written communications submitted. All applications are available at the Department of Public Works office at City Hall, 125 East Ave, Norwalk, CT and on the City of Norwalk’s website at https://www.norwalkct.org/2729/Sewer- Extension-Applications. A copy of the agenda and instructions on how to participate in this virtual meeting will be available on the City of Norwalk’s website at: https://www.norwalkct.gov/1074/Actions-Agendas-and-Minutes DATED THIS SECOND DAY OF MAY 2025. DARREN OUSTAFINE, CHAIRMAN JOHN IGNERI, VICE CHAIRMAN Publish TWICE in The Hour FRIDAY, MAY 2, 2025 THUSDAY, MAY 8, 2025 Page 4 of 40 N AQUIFER PROTECTION AREA PERMIT CONDITIONS OF APPROVAL: NORWALK P&Z CONDITIONS OF APPROVAL: 1. ALL STORMWATER BEST MANAGEMENT MEASURES, INCLUDING, BUT NOT LIMITED TO PROPOSED CATCH LEGEND BASINS, CATCH BASIN INSERTS, AND HYDRODYNAMIC OIL/GRIT SEPARATOR, SHALL BE INSTALLED AND EXISTING SYMBOLS: PROPOSED SYMBOLS: FULLY OPERATIONAL PRIOR TO THE INITIATION OF ANY REGULATED ACTIVITIES AT THE SITE. Iron Pin (Found) (MH) Storm Drain Manhole 2. VEHICLE AND MACHINERY REPAIR AND/OR MAINTENANCE SHALL BE LIMITED TO OCCUR WITHIN BUILDING #1. Monument (Found) (CB) Catch Basin SITE 3. NO WASHING OF EQUIPMENT OR VEHICLES SHALL TAKE PLACE ON THE PROPERTY WHERE IT CAN FLOW TO THE STORM DRAIN SYSTEM. ANY WASHING MUST TAKE PLACE INDOORS, IN AN AREA WHERE STATE AND Manhole (SSMH) Sanitary Sewer Manhole LOCAL PERMITS HAVE BEEN OBTAINED TO DISCHARGE WASTEWATER THROUGH AN APPROVED "C" Catch Basin Perc Test Hole Location OIL/WATER/GRIT SEPARATOR TO A MUNICIPAL SEWAGE TREATMENT FACILITY, OR IN AN AREA WHERE ALL UP# PT-1 & Number WASHWATER DISCHARGES TO A HOLDING TANK. Utility Pole LP Deep Test Hole Location Light Pole 4. OUTSIDE STORAGE OF HAZARDOUS MATERIALS (INCLUDING SALT STORAGE) IS PROHIBITED. DTH-1 & Number WG Water Gate W Proposed Well GV Gas Valve Proposed Wall GM Gas Meter Mounted Lighting W Existing Well EXISTING LINETYPES: PROPOSED LINETYPES: Property Line S Sanitary Sewer NOTE "B": Underground HYDRODYNAMIC SEPARATOR TO BE 8' E Electric Service Piping (San.,Stm.) DOWNSTREAM DEFENDER OR EQUIVALENT CAPABLE OF TREATING 7.50 CFS WITHOUT W Water Service E U/G Elec. Line BYPASS STORING 500 GALLONS OF OIL, T U/G Telephone Service AND STORING 120 CF OF SEDIMENT W Water Line Primary Septic O/H Overhead Utilities Reserve Septic REVISED AS PER CONDITIONS OF APPROVAL T U/G Tele. Line LOCATION MAP REVISED AS PER STAFF COMMENTS REVISED AS PER STAFF COMMENTS Retaining Wall REVISED AS PER DPW COMMENTS Chain Link Fence (NTS) 20 Contour (Major) Stone Ret. Wall 20.1 Spot Elevation 20 Contour ISSUE Silt Fence Wetland Limit Timber Rail 20.1 Spot Elevation Vegetative Buffer WF#3 WF#4 Overhead Utilities Wetland Limit (Flagged) Watercourse Limit 100 Year Flood Line Floodway Boundary Mean High Water REVISION DATE DAVIS 3/14/25 3/16/20 8/8/19 7/30/19 STREET W info@landtechconsult.com G Civil & Structural Engineers Environmental Scientists W Permit Coordination G N Construction Management LANDTECH Construction Finance MULLER 203-454-2110 W LANDTECH G Westport, Connecticut 06880 W G W G NORWALK 518 Riverside Avenue W RIVER G W PROPOSED SITE IMPROVEMENTS FOR A CONTRACTORS YARD G W G AVENUE W G S S S S W SITE PLAN G Z:\Archived 2017\17078-01 Shawn's Lawn - 2 Muller Ave, Norwalk\Drawings\2 Muller - Site Plan.dwg S W SHAWN'S LAWNS 2 MULLER AVE W G NORWALK, CT PROJECT LOCATION: S PREPARED FOR: W PULASKI W G TITLE: STREET PROJECT No. 17078-01 G SCALE DATE 1" = 20' 6/25/19 DRAWN BY: CHECKED BY: AS AS FIGURE 1 0 SCALE IN FEET 20 40 60 NOT FOR CONSTRUCTION C-1 Page 5 of 40 *LEGAL NOTICE* The Water Pollution Control Authority (WPCA) Board will hold a public hearing via Zoom Teleconference on May 19, 2025 at 5:30pm on the following topic: SANITARY SEWER EXTENSION REQUEST: Several residents between 174 and 188 Bouton St have requested the city to extend the sanitary sewer main located on Bouton Street to serve multiple parcels. At this hearing interested persons may be heard and written communications submitted. A copy of the agenda and instructions on how to participate in this virtual meeting will be available on the City of Norwalk’s website at: https://www.norwalkct.gov/1074/Actions-Agendas-and- Minutes DATED THIS SIXTH DAY OF MAY 2025. DARREN OUSTAFINE, CHAIRMAN JOHN IGNERI, VICE CHAIRMAN Publish ONCE in The Hour THURSDAY, MAY 8, 2025 Page 6 of 40 CITY OF NORWALK WATER POLLUTION CONTROL AUTHORITY VIA ZOOM VIRTUAL VIDEOCONFERENCE AND TELECONFERENCE REGULAR MEETING April 21, 2025 Attendance: Darren Oustafine, Chairman Chris Mannella John Bove Barbara Smyth Heather Dunn (Arrived at 5:40 PM) Staff: Vanessa Valadares, Chief of Operations and Public Works Ralph Kolb, WPCA Senior Environmental Engineer Nelya Bauer, Wastewater Systems Manager Wilber Giron, DPW Permit Engineer Others: Trever Steeprock, Project Manager, Veolia, Inc. Ross Gambino, Asst. Project Manager, Veolia, Inc. I. CALL TO ORDER Mr. Oustafine called the meeting to order at 5:30 PM. II. ROLL CALL Mr. Oustafine called the roll; all those listed in attendance were present. IV. PUBLIC PARTICIPATION Santos Martinez- 184 Bouton Street Mr. Martinez said he lives at the end of the street and is still on Septic, and their system is old and at the end of its useful life. He said he requests the city’s help to extend the sewer line to the end of the street so additional properties can tie into the sanitary sewer. He said the properties are small, so replacing the current septic system will be challenging if it fails. There is also an issue with the water table being very high and having a problem with water retention from Brien McMahon High School, which saturates the ground at their properties and is a challenge because 1 Page 7 of 40 there is a lot of water. Five houses are currently on septic and requesting the sewer line be extended so they can connect to the city’s sanitary sewer. Sean Rosa- 178 Bouton Street Mr. Rosa said if the sanitary sewer is extended, there is a potential for approximately 10 houses or more to connect, which would mean more property tax revenue for the city. He has lived there for over 20 years, and when the field at Brien McMahon was redone, the turf field did not absorb the water, and the field was pitched towards the hill, so the water ran through all of the yards. The resident at 182 Bouton Street is elderly, and she has two sump pumps that run 24/7 year- round, and she has lost furnaces over it, and the water is non-stop. He said the septic tanks are getting old, there is so much runoff, and the houses are in rough shape. Christina Valasquez- 188 Bouton Street Ms. Velasquez said she lives with her mother at the last house on Bouton Street. She agrees with the previous comments and that they also get a lot of water, which has been worse since the field at Brien McMahon was redone. Mr. Oustafine encouraged those who spoke to attend the public hearing to provide their opinion and address their concerns. III. ACCEPTANCE OF MINUTES A. Regular Meeting: March 17, 2025 ** MS. SMYTH MOVED TO APPROVE THE MINUTES AS SUBMITTED. ** THE MOTION PASSED UNANIMOUSLY. V. NEW BUSINESS A. SCHEDULE PUBLIC HEARING ON MAY 19, 2025, AT 5:30 PM FOR PROPOSED SANITARY SEWER EXTENSION FOR 2 MULLER AVENUE, NORWALK, CT. Mr. Giron said that staff requests the board to reschedule the public hearing, which was initially scheduled for today. However, the applicant failed to notify the public in a timely manner, as required by the policy for the extension and the state statute. He said that staff requests that the public hearing be rescheduled for May 19, 2025, to give the applicant the time needed to notify the public accurately. ** MR. BOVE MOVED TO APPROVE THE ITEM. ** THE MOTION PASSED UNANIMOUSLY. 2 Page 8 of 40 B. SCHEDULE PUBLIC HEARING ON MAY 19, 2025, AT 5:30 PM FOR SANITARY SEWER EXTENSION REQUEST ON BOUTON STREET, NORWALK, CT. (COPY INCLUDED) Mr. Giron said that the staff requested that the board consider scheduling a public hearing based on a petition from the neighborhood. The city is asking to extend the sewer extension to be incorporated into the capital project, and the fee will be passed onto the neighborhood should it get approved. ** MS. SMYTH MOVED TO APPROVE THE ITEM. ** THE MOTION PASSED UNANIMOUSLY. C. AUTHORIZE THE CHAIRMAN OR VICE CHAIRMAN OF THE WATER POLLUTION CONTROL AUTHORITY TO EXECUTE AN AGREEMENT WITH TIGHE AND BOND TO PROVIDE PROFESSIONAL ENGINEERING AND CIVIL SERVICES RELATED TO SITE PLANNING, LAND USE EVALUATION, BUILDING ASSESSMENT, DRAINAGE ANALYSIS, PERMITTING FOR A MUNICIPAL INFRASTRUCTURE PROJECT, AND OTHER RELATED WORK FOR THE SUM NOT TO EXCEED $250,000. Mr. Kolb said the WPCA team went out with an RFQ and conducted interviews last week. Based on the committee’s decision, Tighe and Bond were the consultants selected to view the RFQ and the presentations. This project is for the acquisition related to the Keeler Brook pump station project that has been discussed in previous meetings. ** MS. DUNN MOVED TO APPROVE THE ITEM. ** THE MOTION PASSED UNANIMOUSLY. VI. OLD BUSINESS A. Contract Operations Report 1. Veolia Monthly Operating Report- March 2025 (copy included) Mr. Steeprock reported that in March, the Veolia collections system team completed 1.46 miles of TV inspection, .93 miles of sewer cleaning, 17 manhole inspections, 6.11 miles of SL Rat, .62 miles of hot list cleaning, and responded to 16 service calls. The IPP inspection program conducted 24 inspections. Mr. Steeprock said the return-activated sludge (RAS) flow controllers were removed and updated with a new flow control system. The Veolia maintenance team emptied and cleaned aeration tank #3. An air 3 Page 9 of 40 Mr. Steeprock said the nitrogen performance for March was good, considering the colder temperatures. He said all permits and permit requirements were followed and that all the required reports were submitted to the DEEP and EPA. The bi-monthly and quarterly sludge reports were submitted in March. Connecticut State Aquaculture visited the site and conducted grab sampling of the effluent following an illness outbreak. Still, they are certain that it is related to Norovirus, not shellfish. Mr. Steeprock said in March that there were two high-level events at the Keeler Brook pump station, and the new system provided early warnings. Since the issues last month, we have had a significant decrease in issues and an increase in pump quality, and the redundancy is doing what it is supposed to do. 2. Major Repair or Replacement/Out of Scope Items: a. Keeler Brook Temporary Control Panel (copy included) Mr. Steeprock said they have an agreement with the WPCA and subsequently with vendors to prepare a separate control panel for the Keeler Brook pump station. The intention is to run the pump station as if it were a normal pump station, even though temporary pumping measures are being used. The control panel is currently being constructed and should be completed within the next few months. b. Wet Weather Chemical Pump Skid (copy included) Mr. Steeprock said this project will replace pumps for the wet-weather flow, as the existing pumps did not allow for a good range of coverage. The skid and pump have been ordered, but unfortunately, they have a very long lead time of 90-120 days and were ordered a month ago. c. Old Trolley Way Pump Station Site Restoration (copy included) Mr. Steeprock said the site will be rehabilitated, which will include upgrading the fence, and is in the planning and ordering phase, and is working on getting the driveway permit submitted. B. Reports: 1. FY 24/25 Revenues/Expenditures MUNIS Reports (copy included) There was no discussion. C. Discussion on WPCA Engineering Projects: 1. Beacon Street Sanitary Sewer Ms. Bauer said the project is progressing from 60% to 100% design and is working to expedite the bid documents. 4 Page 10 of 40 2. Hubbell’s Lane Relief Sewer Ms. Bauer said the project is at 90% and is working to reconfigure the alignment at the Park Street/East Wall Street intersection. 3. Final Settling Tank Ms. Bauer said the kickoff meeting was held last week, and the ARCADIS team inspected the final settling tanks as a baseline. D. Discussion on WPCA Construction Projects: 1. Collection- Sammis and Bell Island Sewershed Rehabilitation Ms. Bauer said 75% of the manholes and lateral grouting work has been completed, and the team should complete the work by September 30th. E. Sewer Use Appeals/Adjustments Update Ms. Bauer said the sewer use appeals/adjustments to date are $82,724. F. Information Copies: None Mr. Manella asked about the status of the potential FEMA reimbursement for the Keeler Brook pump station. Ms. Valadares said they have received mixed information, and a few items may not be considered part of the reimbursement. She said staff will continue applying and working and applying for the reimbursement. She also reminded the board that receiving FEMA funding takes a long time to process. Ms. Valadares said that Ms. Bauer is leaving the WPCA for new professional adventures and thanked her. Ms. Bauer said she has enjoyed working with the WPCA and has been an amazing experience. The WPCA board wished her luck in her future endeavors. VIII. ADJOURNMENT ** MS. SMYTH MOVED TO ADJOURN. ** THE MOTION PASSED UNANIMOUSLY. The meeting adjourned at 6:04 PM. Respectfully submitted, Dilene Byrd 5 Page 11 of 40 Norwalk Water Pollution Control Authority Sammis and Bell Island Sewershed Rehabilitation Item No. Description of Work Est. Qty. Unit Price 1 WCD#20 Washington St Lining, MH Rehab & Grouting 1 LS $141,790.00 WCD#21 Removal of 95 Laterals to be Grouted due to 2 1 LS ($29,070.00) WCD#6 (leaving previously lined laterals to be grouted) 3 WCD#22 Additional Traffic Control 1 LS $150,000.00 Total Cost: $262,720.00 Page 12 of 40 Norwalk Water Pollution Control Authority Monthly Operating Report April 2025 1 Page 13 of 40 Norwalk Water Pollution Control Authority Monthly Operating Report –April 2025 EXECUTIVE SUMMARY April Highlights ● The Veolia collections system team completed 2.40 miles of TV inspection, 4.50 miles of sewer cleaning was completed, 43 Manhole Inspections, and 2.95 miles of SL Rat. ● Veolia responded to 20 service calls. ● Veolia cleaned all four Final tank launders and both Chlorine contact tanks. ● The IPP inspection program conducted 28 inspections. ● The facility’s Nitrogen Performance for April was 587 lbs. ● Installed new pipes with sprayers on Aeration tank #3 in the anoxic zone to minimize scum build up. ● Norwalk experienced moderately heavy rain (~2" over two days) without the Storm Outfall activating. WPCF and Collections System performed very well. Regulatory Events  The Water Pollution Control Facility followed all permit requirements for the month of April.  The netDMR, MOR, and NAR reports were submitted to CT-DEEP and EPA in April. 2 Page 14 of 40 Norwalk Water Pollution Control Authority Monthly Operating Report –April 2025 EXECUTIVE SUMMARY - Key Operational Parameters` Parameter Units April CYTD Result Contract Limit Result Average Daily Flow MGD 12.5 n/a n/a 180 Day Average Daily Flow MGD 11.58 n/a n/a Effluent BOD mg/l 6.4 n/a 10 Effluent TSS mg/l 10.7 n/a 10 Effluent Fecal Coliform # / 100 ml 4 n/a 10 Effluent Enterococci # / 100 ml 15 n/a 30 Effluent Total Chlorine mg/l 0.02 n/a 0.07 Effluent Total Nitrogen lbs/day 587 n/a 1,000 Biosolids Quality (cake) % solids 29 n/a n/a Biosolids Disposal (cake) DT/month 194 n/a n/a Biosolids Disposal (liq) DT/month 75 n/a n/a Biosolids Disposal (total) DT/month 269 n/a n/a Grit and Screenings WT/month 6 n/a n/a Chemicals – Hypochlorite gal/month 6037 n/a n/a Chemicals – Bisulfite gal/month 5271 n/a n/a Chemicals – Polymer gal/month 650 n/a n/a Chemicals – Odor Control gal/month 0 n/a n/a Sewer Cleaning Miles 4.50 24.83 3 miles (avg) CCTV Inspection Miles 2.40 14.0 2 miles (avg) Odor Complaints # 0 n/a 0 SL-RAT Inspection Miles 2.95 52.42 60 months Manhole Inspections # 43 334 50/m IPP Inspections # 24 296 Approx. 500/year 3 Page 15 of 40 Norwalk Water Pollution Control Authority Monthly Operating Report –April 2025 EXECUTIVE SUMMARY - Influent Flow Influent Flow 20.00 18.00 16.00 14.00 12.00 MGD 10.00 8.00 6.00 4.00 2.00 0.00 Apr-21 Jun-21 Aug-21 Oct-21 Dec-21 Feb-22 Apr-22 Jun-22 Aug-22 Oct-22 Dec-22 Feb-23 Apr-23 Jun-23 Aug-23 Oct-23 Dec-23 Feb-24 Apr-24 Jun-24 Aug-24 Oct-24 Dec-24 Feb-25 Apr-25 180 Day MA Flow Design Flow 90% Design Flow Linear (180 Day MA Flow) 4 Page 16 of 40 Page 17 of 40 Page 18 of 40 Page 19 of 40 Page 20 of 40 Nitrogen Credit Exchange Program DRAFT Credit Exchange Invoice for CY 2024 NORWALK WPCF NPDES Permit # CT0101249 End-of-Pipe TN Credit Exchange Calculation Discharged (lbs/day) January 998 Permit Limit lbs./day 718 February 801 Annual Avg lbs./day 680 March 939 E-Factor 1.00 April 758 Credits eq.lbs./day -38 May 719 Cost/Credits $2.4219566 June 587 Annual Invoice -$33,685 July 583 August 612 September 593 October 485 November 455 December 624 Annual Avg 680 If the Water Pollution Control Facility discharged more nitrogen than required by its Nitrogen General permit, the Exchange Program will require payment. Please send payment to: Electronic deposit in financial The Commissioner will purchase institution ACH instructions: credits by August 15, 2025, in the Bank of America amount of: Routing Number: 011900254 Account Name: State of CT Regular ($33,685) Account Account Number: 000000054763 Ref# NCEP Or if by check: Please Make Checks Payable to: Office of the State Treasurer 165 Capitol Ave - 2nd Floor Hartford, CT 06106 Attn: Renae Earlington Page 21 of 40 Page 22 of 40 Table 3 2024 Nitrogen Credit Exchange Buyers and Sellers DRAFT Selling Credits Buying Credits Plant Name Equalized Cost Eq.Lbs Plant Name Equalized Cost Eq.lbs Credits Credit at Credits Credit at $5.3 $2.4219566 STAMFORD WPCF 608.00 $538,953 BRIDGEPORT WEST WPCF 212.50 $412,208 MERIDEN WPCF 143.57 $127,266 WALLINGFORD WPCF 159.60 $309,592 WATERBURY WPCF 135.00 $119,669 NORWICH WPCF 87.84 $170,392 TORRINGTON WCPF 109.20 $96,799 SHELTON WPCF 75.04 $145,563 BRIDGEPORT EAST WPCF 97.75 $86,649 HARTFORD 71.40 $138,502 STRATFORD WPCF 83.08 $73,645 WINDSOR POQUONOCK WPCF 68.02 $131,945 MILFORD HOUSATONIC WPCF 69.01 $61,173 BRISTOL WPCF 33.30 $64,595 BRANFORD WPCF 56.40 $49,995 EAST HARTFORD WPCF 26.60 $51,599 SOUTHINGTON WPCF 49.49 $43,870 EAST HAMPTON WPCF 19.00 $36,856 ANSONIA WPCF 46.90 $41,574 BEACON FALLS WPCF 18.76 $36,391 DANBURY WPCF 45.54 $40,368 PLYMOUTH WPCF 17.10 $33,171 NEW HAVEN WPCF 44.40 $39,358 FAIRFIELD WPCF 17.00 $32,977 NEW CANAAN WPCF 42.00 $37,230 RIDGEFIELD SOUTH WPCF 8.00 $15,518 WESTPORT WPCF 38.25 $33,906 NAUGATUCK WPCF 7.20 $13,967 NORWALK WPCF 38.00 $33,685 CANTON WPCF 5.94 $11,522 NORTH HAVEN WPCF 34.20 $30,316 SALISBURY WPCF 5.60 $10,863 MANCHESTER WPCF 25.65 $22,737 NORTH CANAAN WPCF 5.60 $10,863 MATTABASSETT WPCF 25.60 $22,693 THOMPSON WPCF 4.90 $9,505 ENFIELD WPCF 22.42 $19,874 JEWETT CITY WPCF 3.57 $6,925 GREENWICH WPCF 22.00 $19,502 WINSTED WPCF 2.70 $5,237 WEST HAVEN WPCF 21.00 $18,615 PLAINFIELD NORTH 2.52 $4,888 MILFORD BEAVER BROOK WPCF 15.41 $13,660 SEYMOUR WPCF 2.01 $3,899 NEWTOWN WPCF 14.26 $12,641 PORTLAND WPCF 1.80 $3,492 SIMSBURY WPCF 11.52 $10,212 SPRAGUE WPCF 1.60 $3,104 NEW LONDON WPCF 9.72 $8,616 DERBY WPCF 1.34 $2,599 ROCKY HILL WPCF 9.60 $8,510 SOUTH WINDSOR WPCF 1.33 $2,580 WINDHAM WPCF 8.10 $7,180 KILLINGLY WPCF 0.98 $1,901 FARMINGTON WPCF 7.92 $7,021 STONINGTON BOROUGH 0.18 $349 VERNON WPCF 7.22 $6,400 STAFFORD SPRINGS WPCF 0.00 $0 GROTON TOWN WPCF 5.40 $4,787 NEW MILFORD WPCF 0.00 $0 SUFFIELD WPCF 4.94 $4,379 Total 861.43 $1,671,003 THOMASTON WPCF 4.80 $4,255 EAST WINDSOR WPCF 3.80 $3,368 GLASTONBURY WPCF 3.60 $3,191 The Self-Sufficient Program was approved PUTNAM WPCF 3.22 $2,854 under Public Act 15-38 in 2016. The program PLAINVILLE WPCF 3.06 $2,712 consists of the buyers purchasing the credits LICHFIELD WPCF 2.45 $2,172 (86143. equalized at $5.3) they need to meet their General Permit with those payments MONTVILLE 2.34 $2,074 ($1,671,005) being shared amongst the sellers UCONN WPCF 2.10 $1,862 (1885.08 equalized pounds per day at CHESHIRE WPCF 1.96 $1,737 $2.4219566) proportionally. There will be no WINDSOR LOCKS WPCF 1.52 $1,347 State purchase of excess credits. The 2024 PLAINFIELD VILLAGE WPCF 1.12 $993 year data is traded in 2025. NORFOLK 1.05 $931 GROTON CITY WPCF 0.90 $798 If the Water Pollution Control Facility STONINGTON MYSTIC WPCF 0.90 $798 dischared more nitrogen than required by its LEDYARD WPCF 0.54 $479 Nitrogen General Permit, the Nitrogen STONINGTON PAWCATUCK WPCF 0.17 $151 Exchange Program will require payment by July 31, 2025. 1885.08 $1,671,005 The Comissioner will purchase credits by August 15, 2025. Bold = Project Facilities (is defined as any facility with a fully operational nitrogen removal system of any scale as of January 1st of the trading year). There are three Project Facilities in Page 23 of 40 Maintenance, Repair and Replacement (MRR) Approval Form MRR Number: CY-05-015 Date: 4-8-2025 Subject WASTEWATER TREATMENT SYSTEM OPERATIONS, MAINTENANCE, AND to the MANAGEMENT SERVICES AGREEMENT and BETWEEN WATER POLLUTION CONTROL AUTHORITY FOR THE CITY OF NORWALK AND VEOLIA ENVIRONMENT S.A. ("VEOLIA") l. MRR Description: Install additional electrical wiring for 8 pump stations. The wiring will connect the equipment to the Scada control panel. 2. Scope of Work: Bouton St: Labor and materials to run (2) twisted shield pair cables in conduit from each motor starter (2) to R TU panel Karen Dr: Labor and materials to run (2) twisted shield pair cables in conduit from each motor starter (2) to R TU panel Strathmore: Labor and materials to run (2) twisted shield pair cables in conduit from each V FD (2) to R TU panel and (2) #16 wires in conduit from backup float panel to R TU panel Marvin Beach: Labor and materials to run (2) twisted shield pair cables in conduit from each panel motor starter (2) to R TU panel and (2) #16 wires in conduit from backup float panel to R TU Westport Ave: Labor and materials to run (2) twisted shield pair cables in conduit from each V FD (2) to R TU panel and (2) #16 wires in conduit from backup float panel to R TU panel Woodward Ave: Labor and materials to run (2) twisted shield pair cables in conduit from each VFD (2) to R TU panel and (2) #16 wires in conduit from backup float panel to R TU panel Old Trolley Way: Labor and materials to run (2) twisted shield pair cables in conduit from each V FD (2) to R TU panel and (2) #16 wires in conduit from backup float panel to R TU panel 5 Mile River: Labor and materials to run (2) twisted shield pair cables in conduit from each VFD (2) to R TU panel and (2) #16 wires in conduit from backup float panel to R TU panel Terminations by AA Current switches by AA 3. Quotes: See Attached. Traver cost $18,610.00 4. Time Schedule: The Company shall complete the work required by this MRR Approval Form within 90_calendar days of the date above. Page 24 of 40 5. Compensation: Vendor / Subcontractor: $18,610.00 Traver IDC Contin enc 10% . $1,861.00 Veolia Mark U : $3,070.65 Total Pro•ect Cost: $23,541.65 ISSUED AND AUTHORIZED BY: ACCEPTED AND AGREED TO BY: Veolia Norwalk WPCA By: By: Title: Title: Sr. Environmental Engineer roseu Page 25 of 40 QUOTATION DATE: 3/25/2025 TO: Pete Verderosa FROM: Dave Dispoto FOB: Factory COMPANY: Veolia, Norwalk COMPANY: IDC TERMS: Net 30 days QUOTE #: DLD6925 TAX: CT sales tax to be added, if applicable DELIVERY: As needed We are pleased to present the following quotation for your current and float additions at the following pump stations. The scope of work to include; • Bouton St: Labor and materials to run (2) twisted shield pair cables in conduit from each motor starter (2) to RTU panel • Karen Dr: Labor and materials to run (2) twisted shield pair cables in conduit from each motor starter (2) to RTU panel • Strathmore: Labor and materials to run (2) twisted shield pair cables in conduit from each VFD (2) to RTU panel and (2) #16 wires in conduit from backup float panel to RTU panel • Marvin Beach: Labor and materials to run (2) twisted shield pair cables in conduit from each motor starter (2) to RTU panel and (2) #16 wires in conduit from backup float panel to RTU panel • Westport Ave: Labor and materials to run (2) twisted shield pair cables in conduit from each VFD (2) to RTU panel and (2) #16 wires in conduit from backup float panel to RTU panel • Woodward Ave: Labor and materials to run (2) twisted shield pair cables in conduit from each VFD (2) to RTU panel and (2) #16 wires in conduit from backup float panel to RTU panel • Old Trolley Way: Labor and materials to run (2) twisted shield pair cables in conduit from each VFD (2) to RTU panel and (2) #16 wires in conduit from backup float panel to RTU panel • 5 Mile River: Labor and materials to run (2) twisted shield pair cables in conduit from each VFD (2) to RTU panel and (2) #16 wires in conduit from backup float panel to RTU panel • Terminations by AA • Current switches by AA TOTAL INVESTMENT: $18,610.00 Thank you for this opportunity to quote. We look forward to working with you on this project. QUOTATIONS: Seller may make quotations verbally or in writing. Verbal quotations shall expire automatically unless Seller receives Buyer's purchase order number on the day the quotation is made. Written quotations shall expire automatically unless Seller receives Buyer's written purchase order within 15 days after the date appearing on the quotation. No quotation is to operate as an offer to sell but only as a description of products. Accordingly, even prior to its expiration date, any quotation is subject to change by Seller at any time upon verbal or written notice to Buyer. All quotations are deemed to incorporate Seller's Standard Terms and Conditions of Sale, available upon request. Page 26 of 40 Page 27 of 40 Page 28 of 40 WPCA Meeting May 19, 2025 Bouton Street Sanitary Sewer Extension Request Page 29 of 40 Discussion Outline • Introduction • Sanitary Sewer Extension Location • Estimated Project Cost • Process Required for Assessment of Benefits of New Sewer Lines • WPCA Future Capital Projects • WPCA Financial Plan Summary (Jan 2025) • Next Steps Page 30 of 40 Introduction • September 20, 2021 – 174-176 Bouton St with private development sanitary sewer extension was approved by WPCA Board (approval expired) • Bouton St Neighborhood request for City Funded sanitary sewer extension: • Address Nos. – 188, 186, 184, 182, and 178, and 174-176 • Groundwater / flood issues • Aging septic systems • Sanitary Sewer Extension Scope: • Original private sanitary sewer extension – 330 ft of 8-inch gravity main and 2 manholes • Overall ~850 ft of 8-inch gravity main and 4 manholes • ~10 sewer lateral connections • Project Unknowns: • Project wastewater flow • Site conditions - rock/ledge • Groundwater impacts • Bouton St PS Confirm Capacity Page 31 of 40 Location Map Project Area Page 32 of 40 Sanitary Sewer Extension Legend Approved Proposed Existing Private Main (not Sanitary constructed) Sewer Approved Proposed 176 - 174 Private Manhole (not constructed) Requested New Gravity Main Requested New Sewer Lateral Requested New Manhole Page 33 of 40 Estimated Project Cost Description Cost Range Engineering Design/Bidding Services $75,000 - $100,000 Construction $1,200,000 - $1,800,000 Construction Contingency (30%) $360,000 - $540,000 Total Cost Estimate: $1,635,000 - $2,440,000 Page 34 of 40 Process Required for Assessment of Benefits of New Sewer Lines • Connecticut law and Norwalk ordinances authorize the WPCA to recoup costs associated with construction of new sewer lines from the owners of properties benefited by the new lines • WPCA must hold a public hearing before construction of a new line - C.G.S. § 7-247a • The hearing must give impacted property owners an opportunity to be heard • Notice requirements - time, place, and purpose of the public hearing: • Notice requirements under the City Charter require publication of two notices in the newspaper between 15 and 2 days before the public hearing • Notice must be sent via certified mail to impacted property owner(s) not later than 15 days before the hearing • Manner of assessment – C.G.S. § 7-249 • The assessment may only occur after construction • The value of the assessment may not exceed the benefit accruing to a property, but may include a proportionate share of the total cost of the sewer project (including preliminary studies, working plans and specifications, damages associated with land acquisition, construction costs, and legal fees) • The proportionate share of the assessment on each benefited property may be determined with a variety of factors (lot size, frontage, property value, estimated flow proportion etc.) Page 35 of 40 Process Required for Assessment of Benefits of New Sewer Lines (Contd.) • WPCA must hold a public hearing after construction for the proposed assessment - C.G.S. § 7-250 • Notice of time, place, and purpose of hearing must be published in newspaper at least 10 days prior to the hearing • Notice of the hearing must be mailed to impacted property owners • WPCA must file a copy of proposed assessment with Town Clerk, and it must be available for inspection at least 10 days before the hearing • Finalizing the Assessment - C.G.S. § 7-250(a); City Code Appendix, Pt. III, Ch. 127 • File a copy of final assessment with the Town Clerk • Mail a copy of the final assessment to the impacted property owners within 5 days; mailing must note the property owner’s right to appeal within 21 days • Tax Collector records a notice of sewer benefit assessment in the Norwalk Land Records within 30 days • Payment from property owners is due within 60 days or in annual installments over 10 years • Property owners may appeal the value of the assessment within 21 days - C.G.S. § 7-250(a). Page 36 of 40 WPCA Future Capital Projects • Collection System Projects (5-yr Plan): • Beacon Street Sanitary Sewer Replacement ~ $7.2MM • Hubbells Lane Relief Sewer ~ $10.7MM • Catch Basin Disconnect Program ~ $12.8MM • Ann St Overflow Elimination ~ $0.8MM • Pump Station Projects (10-yr Plan): • Keeler Brook PS cost range ~ $8MM to $13MM • Other Pump Station Improvements ~ $2MM • Wastewater Facility Projects (10-yr Plan): • Final Settling Tanks Rehabilitation ~ $20MM • Future Cured-in-Place pipe (CIPP) Lining ~ $49.9MM • Aeration System and Blower Improvements ~ $48MM • Biosolids Handling and Primary Settling Tanks (Veolia Identified) ~ TBD Page 37 of 40 WPCA Financial Plan Summary (Jan 2025) Description FY 25/26 FY 26/27 FY 27/28 FY 28/29 FY 29/30 Projected Rate 4.4% 4.0% 4.0% 4.0% 4.0% Increase (%) Projected Capital $13,913,112 $19,730,043 $31,797,403 $16,963,636 $7,000,000 Expenditures ($) Cash Funded Capital $0 $0 $0 $0 $0 Expenditures ($) Ending Operating Cash $22,804,847 $22,586,857 $21,390,832 $18,827,380 $16,077,462 Days Cash On-Hand 390 369 324 261 214 (Target = 210 Days) Page 38 of 40 Next Steps • WPCA Board Direction Page 39 of 40 Norwalk Water Pollution Control Authority Sanitary Sewer Rehabilitation (Contract No. 2023-01) Date: May 15th, 2025 CIPP Lining Original Scope Added Work Total Project (ft) Completed (ft) % Completed 8-inch 29,638 20,898 50,536 48,669 96% 10-inch 2,306 2,201 4,507 3,583 79% 12-inch 1,546 10,178 11,724 9,608 82% 14-inch 921 0 921 921 100% 15-inch 50 978 1,028 906 88% 18-inch 177 0 177 177 100% 24-inch 1,457 0 1,457 1,044 72% Totals: 36,095 34,255 70,350 64,907 92% Specialty Services Original Scope Added Work Total Project (ft) Completed (ft) % Completed ManHole Rehabilitation 2,490 1,439 3,929 2,270 58% (Vertical Feet) Lateral Grouting (Each) 1,200 573 1,773 783 44% Page 40 of 40