Water Pollution Control Authority

Regular Meeting

Norwalk, CT · November 17, 2025

Minutes

CITY OF NORWALK WATER POLLUTION CONTROL AUTHORITY VIA ZOOM VIRTUAL VIDEOCONFERENCE AND TELECONFERENCE REGULAR MEETING November 17, 2025 Attendance: Darren Oustafine, Chairman Chris Mannella John Bove James Frayer Heather Dunn (joined at 5:35 PM) John Igneri Barabara Smyth Staff: Vanessa Valadares, Chief of Operations and Public Works Chris Torre, Superintendent of Operations, DPW Ralph Kolb, WPCA Senior Environmental Engineer Christine Pacelli, Wastewater Systems Manager Mario Pizighelli, Stormwater Systems Manager 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. III. ACCEPTANCE OF MINUTES A. REGULAR MEETING- OCTOBER 20, 2025 ** MR. IGNERI MOVED TO APPROVE THE MINUTES AS SUBMITTED. ** THE MOTION PASSED WITH FIVE (5) IN FAVOR AND ONE (1) ABSTENTION-MS. SMYTH. 1 V. PUBLIC PARTICIPATION There were no public comments this evening. V. NEW BUSINESS A. AUTHORIZE THE CHAIRMAN OR THE VICE CHAIRMAN OF THE WATER POLLUTION CONTROL AUTHORITY TO EXECUTE A FOURTH AMENDMENT TO THE JANUARY 27, 2016 AGREEMENT WITH ARCADIS U.S., INC. TO EXTEND THE TERM OF THE AGREEMENT BY FIVE (5) YEARS WITH AN OPTIONAL FIVE (5) YEAR RENEWAL AND TO INCLUDE ADDITIONAL ON-CALL PROFESSIONAL ENGINEERING SERVICES FOR AN AMOUNT NOT TO EXCEED $8,000,000 IN ACCORDANCE WITH SCOPE OF SERVICES LETTER DATED NOVEMBER 3, 2025 (COPY INCLUDED) ACCOUNT NO’S 091740602-5777-C0545, 09184062-577-C0545, 09254062-5777- C0791, 09264062-5777-C0791 Mr. Kolb said that ARCADIS has been providing on-call professional engineering services to the WPCA related to the wastewater treatment plant. The third contract, which they are currently in, is set to expire on January 26, 2026. Staff is requesting to enter into a fourth amendment to continue current and future work. ARCADIS was selected via a qualification-based selection and also met the DEEP Clean Water Fund requirements. In 2022, the City of Norwalk entered into a Consent Order with the DEEP, which included multiple deliverables and a five- and 10-year schedule. ARCADIS was brought into that Consent Order because the team's project was long-term. Looking towards new projects, there are the aeration system upgrade and design bids, and construction administrative resident services, totaling $8 million, as well as a wet-weather project in which ARCADIS was instrumental in the plan. Engineering is not included at this time, but after DEEP approval, staff will return to the board with a new scope of work. Mr. Igneri asked what they were being paid in the last contact. Mr. Kolb said there is still approximately $3 million available, so the fourth amendment would extend their timeline, extend the current open purchase orders, and bring the total to $11 million. Ms. Smyth asked how many years Amendment Three had been in effect. Mr. Kolb said the original contract was signed in 2016, and since then, due to multiple regulatory directions, the Consent Order, and COVID, the big projects per the original contract scope have been delayed. 2 Mr. Mannella asked whether the costs had already been budgeted and accounted for, and whether ARCADIS could be changed without the DEEP's approval. Ms. Valadares said, “Yes,” that is correct, and unfortunately, they have not received a response on what has been submitted to the DEEP, and they are the engineers on record, and the level of their work has been very good, and they are very responsive, so staff has no concerns continuing to work with them for the next two years. ** MR. IGNERI MOVE TO APPROVE THE ITEM. ** THE MOTION PASSED UNANIMOUSLY. B. AUTHORIZE THE CHAIRMAN OR THE VICE CHAIRMAN OF THE WATER POLLUTION CONTROL AUTHORITY TO RETAIN VERRILL DANA, LLP AS OUTSIDE LEGAL COUNSEL TO THE WPCA FOR AN AMOUNT NOT TO EXCEED $250 000 ANNUALLY FOR SERVICES DESCRIBED IN THE PROPOSAL LETTER DATED NOVEMBER 7, 2025. (COPY INCLUDED) ACCOUNT# 224062-5252 Mr. Kolb said Verrill Law has been providing legal services to the WPCA for many years, including through various regulatory and permitting challenges, as well as the Consent Order, and assisting the WPCA and the city on various matters related to the WPCA. Over those years, they have never approached the WPCA to increase their rates, until recently. They have asked if the WPCA board would consider a rate increase, but did offer a 20% discount ** MS. SMYTH MOVE TO APPROVE THE ITEM. ** THE MOTION PASSED UNANIMOUSLY. VII. OLD BUSINESS A. Contract Operations Report 1. Veolia Monthly Operating Report- October 2025 (copy included) Mr. Steeprock reported that the Veolia collections system team completed 3.5 miles of TV inspection, 3.01 miles of sewer cleaning, 113 manhole inspections, 3.10 miles of SL Rat, responding to 10 service calls, and cleaned the north and south chlorine contact chambers, 3 and over the winter will go onto an every-other-month cleaning cycle. The IPP inspection program conducted 28 site inspections. Mr. Steeprock said the facility’s nitrogen performance for October was strong at 490 pounds. Mr. Steepock said the Keeler Brook temporary pump station improvement project is completed. The remote monitoring and controls portion of the project was completed this month. Mr. Steeprock said the facility performed exceptionally well during the heavy rainfall on October 30th through October 31st. The total rainfall across the city averaged 2.5 inches but did not go into stormflow, and Outfall 002 was not activated and was able to utilize the collection system capacity. The collection system experienced one SSO on Lexington Avenue after the rain event this month. The event was quickly stopped by clearing the downstream blockage. The event was properly reported in a timely manner. Mr. Steeprock said all permit requirements were met in October, and all required reports were submitted to CTDEEP and the EPA. 2. Major Repair or Replacement/ Out of Scope Items: a. Arc Flash Study (copy included) Mr. Steeprock said this is a project they requested and is a minimum every five-year requirement to assess the facility and remark any arc-flash hazards. He said that two quotes were received, and they went with the lower one, as both were qualified. b. Generator Mr. Steeprock said there is a load bank onsite for the generator that allows them to load- test it, but there are multiple coal blocks and relays in that generator that apply different amounts of load. The larger coils began to chatter due to wear and age, so they were unable to test or load-test the generator at higher percentages. They would like to have that repaired so they can resume load testing at 80% to 90%, as recommended. B. REPORTS: 1. FY 24/25 REVENUES/EXPENDITURES MUNIS REPORTS (COPY INCLUDED) There was no discussion. 2. NPDES PERMIT- DEEP NOTICE OF APPLICATION SUFFICIENCY (COPY INCLUDED) Ms. Pacelli said the NPDES permit renewal application was submitted on October 2, 2025, and on October 23, 2025, and received notice from the DEEP that the application is sufficient for processing. 4 C. DISCUSSION OF WPCA ENGINEERING PROJECTS: 1. FINAL SETTLING TANK Ms. Pacelli said the 30% basis-of-design report was submitted earlier this month. The team is currently reviewing it and intends to hold a workshop next month to discuss and address comments to move the design forward. 2. BETTSWOOD ROAD AND BARBARA DRIVE SEWER SEPARATION AND DRAINAGE PROJECT Mr. Pizighelli said they are still in the process of finalizing the grant for this project. The archaeologist needed to conduct test pits along the proposed drainage line on Norwalk Green, and staff have been working with First District Water on a right-of-entry agreement. The drainage design has been completed pending a few last items. Mr. Mannella asked about the status on Bouton Street. Mr. Pizighelli said that Woodard and Curran are having a surveyor begin an investigation and plan to be there on Wednesday of this week. Following the survey, they will conduct soil borings, then produce the 30% design with cost proposals, which staff will present to the board for review. D. DISCUSSION ON WPCA CONSTRUCTION PROJECTS: 1. PS- FORT POINT IMPROVEMENTS Ms. Pacelli said the work at the Fort Point pump station is progressing, and the station remains on temporary bypass while electrical and mechanical work continues. It is anticipated that the work will be completed early next month, and staff will continue to collaborate with the Walk Bridge team on that project. 2. PS- KEELER BROOK Ms. Pacelli said the temporary bypass in continuity is maintained daily by the Veolia team. WPCA staff continue to work with insurance and FEMA on the claim for the August 24th storm damage and are also working with the city on an application to the EDA for a federal grant to support potential funding. 3. COLLECTION- BEACON STREET SANITARY SEWER REPLACEMENT Mr. Pizighelli said that the contractor, CJ Fucci, plans to finish the sanitary sewer bypass setup by the end of the week and will start installing some manholes and the actual sanitary sewer pipe next week. They will start at Beacon Street and Sunset Hill Avenue and will work up toward Willow Street and Armstrong Court, leaving the Sunset Hill Avenue and East Avenue section until the second half of the year. 5 4. COLLECTION- SAMMIS AND BELL ISLAND SEWERSHED REHABILITATION (COPY INCLUDED) Mr. Kolb said the CIPP lining is complete, and a few manholes around the river were challenging, but the Insituform team has developed a plan to rehabilitate them safely and anticipates completing the work in December. E. SEWER USE APPEALS/ADJUSTMENT UPDATES Ms. Pacelli said the sewer use appeals and adjustments to date total $19,542. F. INFORMATION COPIES: 1. 2026 WPCA MEETING SCHEDULE (COPY INCLUDED) There was no discussion. VI. NEW BUSINESS No new business was discussed this evening. VII. DISCUSSION Ms. Smyth asked whether staff would like to share the recent report highlighting the great work that has been done, noting that 2 million gallons per day less are now going through the wastewater treatment plant than in the past. Mr. Kolb said recently that staff looked at wastewater flows over the years and summarized them in a report, and part of that was published today on Nancy on Norwalk. He said that 20 years ago, approximately 14.2 million gallons a day were sent to the wastewater treatment plant, and over the years the flow has decreased to 12.2 million gallons today, so over the past 20 years there has been a 2-million-gallon reduction. Ms. Valadares said it reflects a lot of things happening at the same time, even though the city has been growing positively. There are now energy- efficient appliances, which help reduce consumption, as well as the investment the team and the board have been making to improve the infrastructure, particularly the lining and sanitary sewer separation. VIII. ADJOURNMENT ** MR. IGNERI MOVED TO ADJOURN ** THE MOTION PASSED UNANIMOUSLY. The meeting was adjourned at 5:57 PM. Respectfully submitted, Dilene Byrd 6

Agenda

Packet

REGULAR MEETING – WATER POLLUTION CONTROL AUTHORITY AGENDA NOVEMBER 17, 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. ACCEPTANCE OF MINUTES A. Regular Meeting: October 20, 2025 IV. PUBLIC PARTICIPATION V. NEW BUSINESS A. 1. Authorize the Chairman or Vice Chairman of the Water Pollution Control Authority to execute a Fourth Amendment to the January 27, 2016 Agreement with Arcadis U.S., Inc. to extend the term of the agreement by five (5) years with an optional five (5) year renewal and to include additional on-call professional engineering services for an amount not to exceed $8,000,000 in accordance with scope of services letter dated November 3, 2025. (copy Page 1 of 30 included) Account No's 0917406-5777-C0545, 09184062-5777-C0545, 0925406-5777- C0791,09264062-5777-C0791 B. 1. Authorize the Chairman or Vice Chairman of the Water Pollution Control Authority to retain Verrill Dana, LLP as outside legal counsel to the WPCA for an amount not to exceed $250,000 annually for services described in the proposal letter dated November 7, 2025. (copy included) Account No.: 224062-5252 VI. OLD BUSINESS A. Contract Operations Report: 1. Veolia Monthly Operating Report- September 2025 (copy included) 2. Major Repair or Replacement/Out of Scope Items: a. Arc Flash Study (copy included) b. Generator Load Bank Coils and Relays (copy included) B. Reports: 1. FY 25/26 Revenues/Expenditures MUNIS Reports (copy included) 2. NPDES Permit- DEEP Notice of Application Sufficiency (copy included) C. Discussion on WPCA Engineering Projects: 1. Final Settling Tank 2. Bettswood Road and Barbara Drive Sewer Separation and Drainage Project D. Discussion on WPCA Construction Projects: 1. PS- Fort Point Improvements 2. PS- Keeler Brook PS Replacement 3. Collection- Beacon Street Sanitary Sewer Replacement 4. Collection- Sammis and Bell Island Sewershed Rehabilitation E. Sewer Use Appeals/Adjustments Update F. Information Copies: 1. 2026 WPCA Meeting Schedule (copy included) Page 2 of 30 VII. DISCUSSION UPCOMING MEETINGS Monday, December 15, 2025, at 5:30 PM. VIII. ADJOURNMENT Page 3 of 30 CITY OF NORWALK WATER POLLUTION CONTROL AUTHORITY VIA ZOOM VIRTUAL VIDEOCONFERENCE AND TELECONFERENCE REGULAR MEETING October 20, 2025 Attendance: Darren Oustafine, Chairman Chris Mannella John Bove James Frayer Heather Dunn Staff: Vanessa Valadares, Chief of Operations and Public Works Chris Torre, Superintendent of Operations, DPW Ralph Kolb, WPCA Senior Environmental Engineer Christine Pacelli, Wastewater Systems Manager 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 5:31 PM. II. ROLL CALL Mr. Oustafine called the roll; all those listed in attendance were present. III. ACCEPTANCE OF MINUTES A. REGULAR MEETING- SEPTEMBER 15, 2025 ** MR. FRAYER MOVED TO APPROVE THE MINUTES AS SUBMITTED. ** THE MOTION PASSED UNANIMOUSLY. 1 Page 4 of 30 V. PUBLIC PARTICIPATION There were no public comments this evening. VII. OLD BUSINESS A. Contract Operations Report 1. Veolia Monthly Operating Report- September 2025 (copy included) Mr. Steeprock reported that the Veolia collections system team completed 1.30 miles of TV inspection, 2.80 miles of sewer cleaning, 113 manhole inspections, 3.10 miles of SL Rat, responding to 12 service calls, and cleaned the dichlorination tank. The IPP inspection team conducted 31 inspections. The new wet-weather chlorine pumps were delivered and installed, and the final start-up is scheduled for within the next two weeks. Mr. Steeprock said the facility’s nitrogen performance for September was 456 pounds. Mr. Steeprock said all permit requirements were followed for September, and all required reports were submitted to the CTDEEP and the EPA. The bi-monthly and quarterly sludge reports were also submitted in September. Mr. Steeprock said the Veolia team had a great time at the DPW touch-truck event held last month. B. REPORTS: 1. FY 24/25 REVENUES/EXPENDITURES MUNIS REPORTS (COPY INCLUDED) Mr. Frayer said on the revenue side, there is $110,000 in transfer adjustments, and asked if that is for the month or cumulative. Mr. Kolb said the finance department invests the WPCA's fund balance, and he believes those are the funds that were moved on the back end. Mr. Frayer asked if that is included in the budget. Mr. Kolb said “Yes” and that the finance department provides the number based on the fund balance and their anticipated interest income. Ms. Valadares said it is an annual, not a monthly, payment. Mr. Frayer said he will follow up with the finance department to find out why it is being reported as an adjustment. 2. TIME EXTENSION REQUEST TO DEEP ON CWF-744-PG FOR THE WPC FACILITIES PLAN UPDATE Ms. Pacelli said the project grant agreement for CWF-744-PG for the facilities plan update expires on December 31, 2025, and the WPCA has requested a one-year time extension to 2 Page 5 of 30 December 31, 2026. The WPCA facility's plan is currently pending review by the DEEP Water Planning and Management Division, which is why the extension is being requested. 3. NPDES PERMIT RENEWAL APPLICATION (LETTER ATTACHED) Ms. Pacelli said the NPDES permit renewal expires on March 31, 2026, and the renewal application was submitted on October 1, 2025. C. DISCUSSION OF WPCA ENGINEERING PROJECTS: 1. FINAL SETTLING TANK Ms. Pacelli said the WPCA continues to work on the design with ARCADIS and is currently at 30% design, which is expected to be submitted this month. 2. BETTSWOOD ROAD AND BARBARA DRIVE SEWER SEPARATION AND DRAINAGE PROJECT Mr. Kolb said this is a joint project, with the City of Norwalk taking the lead, and that the WPCA is part of the sanitary sewer separation project. The legal team is currently finalizing the easement with First District Water to install a new drainage system through the green, and DPW engineering is taking the lead on a federal grant to fund the majority of this project. D. DISCUSSION ON WPCA CONSTRUCTION PROJECTS: 1. PS- FORT POINT IMPROVEMENTS Ms. Pacelli said the work at the Fort Point pump station is progressing, and the station is currently on temporary bypass. The contractor has started electrical work and pump removal at the station. The WPCA continues to collaborate with the Walk Bridget team on this project. 2. PS- KEELER BROOK Ms. Pacelli said the temporary bypass is maintained daily by the Veolia team. WPCA staff continue to work with FEMA on the claim for the August 24th storm damage and are also working with the city on an application to the EDA for a federal grant to support potential funding. 3 Page 6 of 30 3. COLLECTION- BEACON STREET SANITARY SEWER REPLACEMENT Mr. Kolb said that the contractor, CJ Fucci, is in the process of submitting shop drawings, and Brown and Caldwell are reviewing them and will approve or issue comments. Last week, they performed 16 test pits to verify utility concerns raised by WPCA staff, and the information was surveyed and uploaded to the drawings. 4. COLLECTION- SAMMIS AND BELL ISLAND SEWERSHED REHABILITATION (COPY INCLUDED) Mr. Kolb said the CIPP lining is 98% complete, the manhole rehabilitation is 73% complete, and the grouting of sewer laterals is 81%, and anticipates the lining will be completed by the end of next week. E. SEWER USE APPEALS/ADJUSTMENT UPDATES Ms. Pacelli said the sewer use appeals and adjustments to date total $5,903. VI. NEW BUSINESS No new business was discussed this evening. VII. DISCUSSION Mr. Oustafine asked for an update on the land purchase. Ms. Valadares said the WPCA is in agreement with the property owner to purchase the land, and the only reason they have not yet closed is that an environmental analysis was required, and there was an area that the consultant could not evaluate and will need to go back and then finalize the report, and then will be able to close. VIII. ADJOURNMENT ** MS. DUNN MOVED TO ADJOURN ** THE MOTION PASSED UNANIMOUSLY. The meeting was adjourned at 5:50 PM. Respectfully submitted, Dilene Byrd 4 Page 7 of 30 Sharon Digitally by Sharon signed X Conne Date: Conners 2025.11.10 rs 14:42:28 -05'00' Page 8 of 30 PA Review/Comments: Per WPCA, changing the the engineering firm would required State to re-review and authorization the change. Page 9 of 30 Norwalk Water Pollution Control Authority www.norwalkwpca.org DRAFT MEMORANDUM TO: Darren Oustafine, WPCA Chairman Vanessa Valadares, PE, Chief of Operations and Public Works FROM: Ralph Kolb, PE, Sr. Environmental Engineer, WPCA CC: Chris Torre, Superintendent of Operations, DPW Christine Pacelli, EIT, Wastewater Systems Manager, WPCA DATE: November 7, 2025 REASON: Norwalk Water Pollution Control Authority Arcadis, U.S. Inc. – Fourth Contract Amendment Request Arcadis, U.S. Inc. (Arcadis), provides on-call professional engineering services to the WPCA related to the Wastewater Treatment Plant (WWTP). The Third Contract Amendment between the WPCA and Arcadis will expire on January 26, 2026. WPCA Staff is requesting to enter into a Fourth Contract Amendment to continue on current active and future planned projects. The original On-Call Engineering Services RFQ was issued as a qualification-based selection and the City’s selection panel selected Arcadis for WWTP On-Call Engineering Services. In addition to City procurement requirements, Connecticut Department of Energy and Environmental Protection (DEEP) Clean Water Fund requirements were followed as well. In May 2022, the City entered into a Consent Order with the DEEP that included two plan deliverables and a 5-yr and 10-yr project implementation schedule upon approval. Currently, the two plan deliverables, Collection System Master Plan Update (September 2022) and the Water Pollution Control Facility Plan (Facility Plan) Update (September 2023), are pending review and approval with DEEP. Upon approval, the WPCA will proceed with the 5-yr and 10-yr project implementation. The Facility Plan, prepared by Arcadis, includes upgrades to the Final Settling Tanks (design/bid services are on-going), the Aeration System, and a Comprehensive Wet Weather Flow Reduction Program or Wet Weather Treatment Project depending on DEEP’s review. The expiring Third Contract Amendment with Arcadis includes the following ongoing/active projects/budgets with the majority related to the Facility Plan:  WPCF Facility Plan ($63,300) – pending DEEP approval  SCADA Phase III Implementation ($9,000) – work completed by year end  Miscellaneous On-Call Support ($34,000)  Final Settling Tanks Upgrade – Design/Bid Services ($784,000) – current in design  Final Settling Tanks Upgrade – CA/RE ($2MM) – future task during construction 15 South Smith Street, Second Floor, Norwalk, CT 06855  Phone: (203) 854-3228  Fax: (203) 854-3224 Page 10 of 30 Page 2 In order to meet DEEP’s 5-yr and 10-yr Consent Order project implementation schedule, WPCA staff are recommending to extend the term of the Arcadis agreement by five (5) years with an optional five (5) year renewal and include additional professional engineering services presented in the attached November 3, 2025 Arcadis proposal that includes the following:  Aeration System Upgrade – Design/Bid/CA/RE ($8MM)  Wet Weather Project Alternative ($8.5MM) – placeholder only (waiting on DEEP approval on project approach) The WPCA team respectfully requests that the following item be included on the November 17, 2025 WPCA Board meeting agenda: Authorize the Chairman or Vice Chairman of the Water Pollution Control Authority to execute a Fourth Amendment to the January 27, 2016 Agreement with Arcadis U.S., Inc. to extend the term of the agreement by five (5) years with an optional five (5) year renewal and to include additional on-call professional engineering services for an amount not to exceed $8,000,000 in accordance with scope of services letter dated November 3, 2025. (copy included) Account Nos.: 09174062-5777-C0545 09184062-5777-C0545 09254062-5777-C0791 09264062-5777-C0791 Please note the requested action item above does not include the $8.5MM noted in the Arcadis cost proposal for Wet Weather Project Alternative due to pending review from DEEP. Upon DEEP approval, a future Arcadis scope proposal would be requested to meet project implementation schedule. Page 11 of 30 Mr. Ralph Kolb, PE Arcadis U.S., Inc. Senior Environmental Engineer 44 South Broadway City of Norwalk Suite 1200 Water Pollution Control Authority White Plains 15 S. Smith Street New York 10601 Norwalk, CT 06855 Phone: 914 694 2100 Fax: 914 328 3384 www.arcadis.com Date: November 3, 2025 Subject: WPCF On-Call Engineering Services Contract Dear Mr. Kolb, In 2023, Arcadis and the Water Pollution Control Authority (WPCA) amended the original Contract for On-Call Engineering Services at the Norwalk Water Pollution Control Facility (WPCF). The current Contract is set to expire on January 26, 2026. Under the current Contract, there are several on-going projects including: • Task Order No. 7 – SCADA Phase III Implementation • Task Order No. 12 – Miscellaneous On-Call Support • Task Order No. 13 – WPCF Final Settling Tanks Upgrade (Design/Bid Services) Arcadis is proud of the important work we have contributed to at the WPCF and the opportunity to support the City and WPCA’s mission. We have completed numerous successful projects with the WPCA including most recently the WPCF Facility Plan Update. This document was submitted in September 2023 to DEEP and is currently under review, pending approval. Several projects identified in the Facility Plan Update are included in WPCA’s capital plan for the WPCF, including upgrades to the Final Settling Tanks (design/bid services are on-going under Task Order No. 13) and the Aeration System. In addition, the Facility Plan Update outlined a Comprehensive Wet Weather Flow Reduction Program to advance the elimination of Outfall 002-1 at the WPCF. The Comprehensive Wet Weather Flow Reduction Program was a collaborative effort between Arcadis, the collections system on-call consultant, and the WPCA in response to the open Consent Order with DEEP. Arcadis supported the WPCA by analyzing different wet weather project alternatives to determine the most viable and cost-effective solution, while also maximizing benefits to long term water quality. A Wet Weather Treatment Project at the WPCF may be considered as an alternative to the Comprehensive Wet Weather Flow Reduction Program depending on DEEP’s review. In summary, future projects that the WPCA has identified to further optimize performance of the WPCF include, but are not limited to: 1/4 Page 12 of 30 Mr. Ralph Kolb, PE Norwalk WPCA Project Description Estimated Project (Construction) Engineering Cost Cost WPCF Final Settling Tanks $18,000,000 $2,000,0001 Upgrade (Engineering Services During Construction) WPCF Aeration System Upgrade $40,000,000 $8,000,000 (Design/Bid/ESDC) Wet Weather Treatment Project2 $41,400,000 $8,500,000 1. Approximately $1,000,000 included under TO No. 13 for design phase services. $2,000,000 anticipated for ESDC, for a total engineering cost of $3,000,000. 2. Alternative project to the Comprehensive Wet Weather Flow Reduction Program, pending DEEP review. The selected project must be completed within ten (10) years from DEEP approval in accordance with the open Consent Order. The future projects being considered by the WPCA will exceed the current term of the On-Call Contract. Therefore, Arcadis respectfully requests a new On-Call Engineering Services Agreement with the Norwalk WPCA for a period of five (5) years with an optional five (5) year renewal period. This new agreement enables Arcadis to continue our support of the WPCA on critical WPCF projects. A current Arcadis rate table for 2025 is included in Attachment 1. Should you have any questions or wish to discuss this request in detail, please do not hesitate to contact me. We look forward to continuing to support the WPCA and the improvement projects at the WPCF. Sincerely, Arcadis U.S., Inc. Vanessa McPherson, PE Vice President www.arcadis.com 2/4 Request for OnCall Contract Amendment_2025.docx Page 13 of 30 Mr. Ralph Kolb, PE Norwalk WPCA ATTACHMENT 1 – 2025 ARCADIS RATE TABLE This document describes the basis for compensation and terms of payment. All rates presented apply to services rendered after January 1, 2025 and will be adjusted annually thereafter. In addition to these fees, clients will also be responsible for any sales or value-added taxes that may apply to engineering services performed. Hourly Rates: Charges for services provided will be in accordance with the following schedule: Category Hourly Rate Director $325 Principal Engineer/Architect/Consultant 2 $300 Principal Engineer/Architect/Consultant 1 $265 Senior Engineer/Architect/Consultant $205 Project Engineer/Architect/Consultant $190 Staff Engineer/Architect/Consultant $180 Engineer/Architect/Consultant 2 $165 Engineer/Architect/Consultant 1 $145 Technician/Designer/Project Assistant 4 $180 Technician/Designer/Project Assistant 3 $150 Technician/Designer/Project Assistant 2 $135 Technician/Designer/Project Assistant 1 $125 Document Technician $100 Invoice Specialist/GEC Data Technician Grade 8 $80 Invoice Specialist/GEC Data Technician Grade 7 $50 Invoice Specialist/GEC Data Technician Grade 6 $30 Invoice Specialist/GEC Data Technician Grade 5 $25 Other Direct Costs: All expenses incurred for a project (except in-house services specified below) from outside vendors will be invoiced at cost plus 10% to cover administrative expenses. These items may include but are not limited to: shipping charges; printing; supplies; equipment; travel expenses; special insurance; licenses; permits; or subcontractors. In-house services consist of: • Transportation - $0.70 per mile for vehicles. • Equipment - a schedule of usage rates for specialty equipment is available for field assignments • Web Hosting – a schedule of monthly web hosting rates is available for client access web sites www.arcadis.com 3/4 Request for OnCall Contract Amendment_2025.docx Page 14 of 30 Mr. Ralph Kolb, PE Norwalk WPCA Payment: All invoices are due and payable within 30 days of billing date. Any attorney's fees, court costs, or other related expenses incurred in collecting delinquent accounts shall be paid by the client. Delinquent bills are subject to finance charges of 1.5% per month. Rates will be adjusted on an annual basis in accordance with the CPI-U index +1% www.arcadis.com 4/4 Request for OnCall Contract Amendment_2025.docx Page 15 of 30 Norwalk Water Pollution Control Authority Monthly Operating Report October 2025 1 Page 16 of 30 Norwalk Water Pollution Control Authority Monthly Operating Report –October 2025 EXECUTIVE SUMMARY October Highlights ● The Veolia collections system team completed 3.5 miles of TV inspection, 3.01 miles of sewer cleaning was completed, 113 Manhole Inspections, and 3.10 miles of SL Rat. ● Veolia responded to 10 service calls. ● Veolia cleaned the North and South Chlorine contact chambers, ● The IPP inspection program conducted 28 inspections. ● The Facility’s Nitrogen Performance for October was 490 lbs. ● The Keeler Brook temporary pump station improvement project is completed. The remote monitoring and controls portion of the project was completed this month. ● The Facility performed exceptionally well during the heavy rainfall on the Oct 30-31.The total rainfall averaged 2.5 inches across the city . ● The Collection System experienced 1 SSO this month on Lexington Avenue after the rain event. The event was quickly stopped by clearing the downstream blockage. The event was properly reported in a timely manner. Regulatory Events  The Facility followed all permit requirements for the month of October.  The netDMR, MOR, and NAR reports were submitted to CT-DEEP and EPA in October. 2 Page 17 of 30 Norwalk Water Pollution Control Authority Monthly Operating Report –October 2025 EXECUTIVE SUMMARY - Key Operational Parameters` Parameter Units October CYTD Result Contract Limit Result Average Daily Flow MGD 9.50 n/a n/a 180 Day Average Daily Flow MGD 10.45 n/a n/a Effluent BOD mg/l 4 n/a 10 Effluent TSS mg/l 5.2 n/a 10 Effluent Fecal Coliform # / 100 ml 9 n/a 10 Effluent Enterococci # / 100 ml 9 n/a 30 Effluent Total Chlorine mg/l 0.01 n/a 0.07 Effluent Total Nitrogen lbs/day 490 n/a 1,000 Biosolids Quality (cake) % solids 27 n/a n/a Biosolids Disposal (cake) DT/month 265 n/a n/a Biosolids Disposal (liq) DT/month 0 n/a n/a Biosolids Disposal (total) DT/month 265 n/a n/a Grit and Screenings WT/month 6 n/a n/a Chemicals – Hypochlorite gal/month 6792 n/a n/a Chemicals – Bisulfite gal/month 6111 n/a n/a Chemicals – Polymer gal/month 637 n/a n/a Chemicals – Odor Control gal/month 0 n/a n/a Sewer Cleaning Miles 3.01 48.09 3 miles (avg) CCTV Inspection Miles 3.50 25.97 2 miles (avg) Odor Complaints # 0 n/a 0 SL-RAT Inspection Miles 3.5 84.70 60 months Manhole Inspections # 44 880 50/m IPP Inspections # 28 517 Approx. 500/year 3 Page 18 of 30 Norwalk Water Pollution Control Authority Monthly Operating Report –October 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 Jun-20 Aug-20 Oct-20 Dec-20 Feb-21 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 Jun-25 Aug-25 Oct-25 180 Day MA Flow Design Flow 90% Design Flow Linear (180 Day MA Flow) 4 Page 19 of 30 Page 20 of 30 Page 21 of 30 Page 22 of 30 Page 23 of 30 Maintenance, Repair and Replacement (MRR) Approval Form MRR Number:CY-06-002 Date: 10-27-2025 Subject to the WASTEWATER TREATMENT SYSTEM OPERATIONS, MAINTENANCE, AND MANAGEMENT SERVICES AGREEMENT and BETWEEN WATER POLLUTION CONTROL AUTHORITY FOR THE CITY OF NORWALK AND VEOLIA ENVIRONMENT S.A. (“VEOLIA”) 1. MRR Description: In order to provide a complete arc flash analysis, a system model will be created using the SKM Systems Analysis software. This model will represent the system from the Utility Service down to and including all major equipment locations such as panelboards, motor control centers (MCCs), switchboards, and switchgear and three phase disconnect switches described below. The model will include the impedance model (cables, transformers, etc.), sources of short circuit contribution (utility, source, large motors, etc.) and the tripping characteristics of the overcurrent protection. The equipment included in this quotation are based off of the following: • Drawing E-GD- 4 • Drawing E-7, E-8, E-9. E-10 The arc flash analysis will be performed according to the IEEE 1584 equations that are presented in NFPA70E-2021, Annex D. The short circuit calculations and the clearing times of the devices will be retrieved from the system model. For the arc flash calculations, the worst-case scenario is not always described by the greatest magnitude of fault current. Eaton has developed an innovative method of considering several scenarios and providing a worst-case scenario for each system location. The arc flash analysis will, therefore, include calculations for maximum and minimum contributions of fault current magnitude. The minimum calculation will assume that the utility contribution is at a minimum and will assume a minimum motor load. Conversely, the maximum calculation will assume a maximum contribution from the utility and will assume all motors to be operating under full-load conditions. For these projects, we partner with the Eaton Electrical Services and Systems (EESS) Division. They’re experienced Power System Engineers with the latest Power System Analysis Software partnered with the field knowledge of our electricians provide you with sound engineering analysis and evaluations. 2. Scope of Work: The scope of work includes the following: • Data Collection • Short-Circuit Study / Coordination Study • Arc Flash Hazard Analysis • Study One line Diagrams • System Review and Recommendations 3. Quotes: See Attached. Traver IDC Quote $44,980.00 GrayBar Quote $50,873.00 4. Time Schedule: The Company shall complete the work required by this MRR Approval Form within 120 calendar days of the date above. 5. Compensation: Vendor / Subcontractor: $44,980.00 Contingency (10%): $4,498.00 Veolia Mark Up (15%): $7,421.70 Total Project Cost: $56,899.70 Page 24 of 30 ISSUED AND AUTHORIZED BY: ACCEPTED AND AGREED TO BY: Veolia Norwalk WPCA By: By: Title: Project Leader Title: Sr. Environmental Engineer Page 25 of 30 Maintenance, Repair and Replacement (MRR) Approval Form MRR Number: CY-06-004 Date: 10-27-25 Subject to the WASTEWATER TREATMENT SYSTEM OPERATIONS, MAINTENANCE, AND MANAGEMENT SERVICES AGREEMENT and BETWEEN WATER POLLUTION CONTROL AUTHORITY FOR THE CITY OF NORWALK AND VEOLIA ENVIRONMENT S.A. (“VEOLIA”) 1. MRR Description: The 2.5 Megawatt generator needs a transformer and relays replaced for the load bank. 2. Scope of Work: Purchase and installation from Kinsley Power a transformer and relays for the load bank for the 2.5 Megawatt generator located at 60 South Smith St. 3. Quotes: See Attached. Kinsley Power is a preferred vendor for the City of Norwalk and is the Kohler Rep. The Company shall obtain a minimum of three (3) quotes for materials or services unless the requirement is waived by the WPCA as impracticable. 4. Time Schedule: The Company shall complete the work required by this MRR Approval Form within 120 calendar days of the date above. 5. Compensation: Vendor / Subcontractor: $16,076.77 Kinsley Power Contingency (10%): $1,607.68 Veolia Mark Up (15%): $2,652.67 Total Project Cost: $20,337.11 ISSUED AND AUTHORIZED BY: ACCEPTED AND AGREED TO BY: Veolia Norwalk WPCA By: By: Sr. Environmental Engineer Title: Project Leader Title: Page 26 of 30 Page 27 of 30 Page 28 of 30 portal.ct.gov/DEEP Notice of Application Sufficiency City of Norwalk 15 South Smith Street Norwalk, CT 06855 Attention: Ralph Kolb (via email to rkolb@norwalkct.gov) Application No.: 202507370 Permit No.: CT0101249 Facility Name: Norwalk Water Pollution Control Facility Pursuant to Section 7-136h of the Connecticut General Statutes (CGS) and Section 22a-430-4(d) of the Regulations of Connecticut State Agencies (RCSA), the Connecticut Department of Energy and Environmental Protection (the “Department”) hereby gives notice that it has performed a preliminary review of the application referenced above, received on October 2, 2025, for a permit to discharge sanitary sewage to surface waters in the City of Norwalk. The Department has determined that the application is sufficient for processing. You will receive an invoice for the processing fee due for this application. Please pay the fee by the due date indicated on the invoice. Your application has been assigned to Syed Bokhari, Environmental Engineer 2, who will conduct a technical review of the application. If you have any questions about your application or this notice, please contact them at (860) 424-3107 or syed.bokhari@ct.gov. Upon completion of the technical review, the Department will issue a tentative determination on your application. Pursuant to Section 22a-3a-2(e) of the RCSA, nothing in this notice shall be deemed to preclude the Department from requesting additional information concerning your application. It is not uncommon for questions to arise during the technical review, which may require additional information to resolve. The Department will make every effort to work with you to resolve any such issues. Your prompt response to any request for additional information will expedite the processing of your application. In accordance with Section 22a-6j(a) of the CGS and Section 22a-430-4(d)(2)(C) of the RCSA, NPDES Permit No. CT0101249 that expires on Tuesday, March 31, 2026 is administratively continued in effect until such time as the Department issues a final determination on the application for renewal. October 23, 2025 Date Stacy Pappano, Supervising Environmental Engineer Municipal Wastewater Water Planning and Management Division Bureau of Water Protection and Land Reuse 79 Elm Street An Affirmative Action/Equal Opportunity Employer Hartford, CT 06106-5127 860.424.3000 Page 29 of 30 Norwalk Water Pollution Control Authority www.norwalkwpca.org Meeting Schedule – Calendar Year 2026 Public Works Center (Second Floor Conference Room), 15 South Smith Street By Video Conference and Teleconference Norwalk Water Pollution Control Authority (WPCA) Meetings are held the third Monday of each calendar month at 5:30 PM unless otherwise noted. Tuesday January 20 (3rd Monday is Martin Luther King’s Day) Tuesday February 17 (3rd Monday is President’s Day) Monday March 16 Monday April 20 Monday May 18 Monday June 15 Monday July 20 Monday August 17 Monday September 21 Monday October 19 Monday November 16 Monday December 21 15 South Smith Street, Second Floor, Norwalk, CT 06855  Phone: (203) 854-3228  Fax: (203) 854-3224 Page 30 of 30