Project Information

Bid Title

COLLECTION SYSTEM INFLOW / INFILTRATION (I&I) STUDY

Issuing Agency

Town of Manchester

Location

Connecticut

Published Date

Jun 8, 2025

Closing Date

Jun 26, 2025

Government Level

State & Local

Status

Closed

Ref. #

24/25-88

Original Source

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Project Description

Project ID: 24/25-88

Title: COLLECTION SYSTEM INFLOW / INFILTRATION (I&I) STUDY

Addenda: 0

Release Date: 6/6/2025

Due Date: 6/26/2025

Post Information

Posted At:Fri, Jun 6, 2025 8:00 AMSealed Bid Process:Yes (Bids Sealed / Pricing Sealed)Private Bid:No

Overview

Summary

The Town of Manchester, Connecticut, Water and Sewer Department (WSD) is seeking proposals from qualified engineering consulting firms to conduct a comprehensive Inflow and Infiltration (I&I) Study of the Town’s sanitary sewer collection system. The study aims to identify sources of I&I, quantify their impact, and recommend cost-effective solutions to reduce extraneous flows, ensuring compliance with Connecticut Department of Energy and Environmental Protection (DEEP) regulations and optimizing system capacity.

Background

Manchester’s sanitary sewer collection system serves approximately 58,000 residents, conveying an estimated average daily flow of 7 million gallons per day (mgd) to the Town’s wastewater treatment facility. During significant rain events, flows can increase substantially due to I&I, contributing to sewer overflows, basement backups, reduced treatment capabilities, reduces redundancy capabilities, and increased treatment costs. The WSD is committed to reducing I&I to enhance system reliability, protect public health, and minimize environmental impacts, in alignment with CT DEEP’s National Pollutant Discharge Elimination System ( N PDES) requirements.

Timeline

Release Project Date:

June 6, 2025

Question Submission Deadline:

June 23, 2025, 2:00pm

RFP Opening Date and Time:

June 26, 2025, 11:00am

Commodity Codes

• NAICS 541330Engineering Services
• NAICS 541511Custom Computer Programming Services
• NAICS 541690Other Scientific and Technical Consulting Services

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