24-500 - Biological Nitrogen Removal Mamaroneck Water R. R. Facility, Mamaroneck, N. Y.

The work under this contract consists of providing all necessary labor, material and equipment required for the replacement of the biological nitrogen removal integrated fixed film activated sludge (BNR IFAS) media and the mixers in the aeration tanks at the Mamaroneck Water Resource Recovery Facility.  Modifications to the aeration tank walls and sieves will also be conducted under this project. Work will include all mechanical, electrical, controls, structural, and other appurtenances as necessary.  (Bid range $ 39,000,000.00 to $ 43,000,000.00).