MWRA Contract No. 6851 Deer Island Chemical Piping Replacement

The Massachusetts Water Resources Authority is requesting bids on the replacement of underground and aboveground chemical piping at the Deer Island Wastewater Treatment Plant in Boston/Winthrop under MWRA Contract No. 6851, with general bids due July 29, 2026, and a mandatory pre-bid conference and site visit on June 10. The contract carries mandatory MBE participation of 7.24% and WBE participation of 3.6%.

The scope encompasses replacement of all required chemical piping between the Tank Farm and Disinfection Gallery at the treatment facility. General bidders must hold certification from the Division of Capital Asset Management and Maintenance in Sewage and Water Treatment Plants classification and submit a current Certificate of Eligibility with an Update Statement. Sub-bidders must likewise provide current Certificates of Eligibility and Update Statements demonstrating certification for public construction projects.

The estimated project cost is $7.353 million. Filed sub-bids for electrical work must be submitted electronically through the MWRA Supplier Portal by 11:30 a.m. on July 1, 2026, preceding the general bid deadline by 28 days. The mandatory pre-bid conference and site visit will be held at 10:00 a.m. on June 10 at Deer Island Treatment Plant; interested parties must contact Jenna Surette at jenna.surette@mwra.com by 3:00 p.m. on June 9 to request access information. Contract documents are available on the Supplier Portal on or after May 27, 2026. Bidders must register and join the Plan Holders' list to access documents and submit bids; paper bids will not be accepted.