Renovation of a water / sewer project in Florence, New Jersey. Completed plans call for the renovation of a water / sewer project.

**As of June 26, 2024, this project has not yet been awarded. A timeline for award has not yet been established.** The Township of Florence Water & Sewer department is requesting proposals (RFP's) from qualified engineering firms to provide engineering, design, and construction administration services for the installation of a per- and polyfluoroalkyl substances (PFAS) treatment system. The new treatment system will be incorporated into our existing water treatment plant flow scheme and any necessary tanks and buildings must fit into the available area behind and next to the existing water treatment facility. Refer to the attached (site plan/tax map) for the site layout. The existing water treatment plant consists of polyphosphate sequestration, tray/media aeration, sodium hydroxide pH adjustment, sodium hypochlorite disinfection, a final clear well, and (4) vertical turbine high service pumps. The new PFAS treatment system should be designed to achieve zero or non-detectable results for perfluorooctanoic acid (PFOA) and PFAS chemicals. In addition, we are seeking to add iron and manganese removal for all six of the drinking water wells, and it should be installed upstream of the PFOA/PFAS treatment plant. Iron and manganese treatment should be installed in the new PFAS treatment building. Treatment design parameters should take into consideration the following well outputs: Well 1 - 475 gpm (gallons per minute) Well 2 - 430 gpm Well 3 - 620 gpm Well 4 - 650 gpm Well 5 - 500 gpm Well 6 - 730 gpm Max flow rate 3405 gpm These are the BSDW permitted flow rates, but design should be based on an additional 10% for a maximum flow of 3745 gpm. Treatment plant design parameters should take into consideration the following raw water levels: o PFOA/PFAS treatment design will be based on raw well PFOA levels ranging from 1.5 ppt to 14ppt on average with one well as high as 220ppt. o Iron and Manganese treatment design should take into consideration iron levels as high as 11ppm and manganese levels as high as 5ppm for two of the wells. Iron and manganese treatment will extend the lifespan of PFAS treatment media, reduce media fouling and provide for treatment of Wells #1 and 2 to levels below drinking water standards. All questions for additional details must be submitted in writing by 3:30 PM on May 17, 2024. All questions must be addressed by email to Kent Jones, Director of Water & Sewer at kjones@florence-nj.gov. In order to allow all proposal requestors the opportunity to review questions and answers, said information will be documented and provided to those persons who previously requested submittal documents from the Township Clerk.