As a result of years of sanitary sewer overflows (SSO) and deficiencies in both its wastewater collection system and treatment plant, the Village of Coxsackie was under an order-on-consent to solve its SSO issues, and there was a moratorium on growth in the Village. The Village needed to increase its capacity for both collection and treatment of wastewater in order to remedy its violations and to accommodate new growth.
Delaware performed an engineering study to identify solutions to the sewer overflows. Based on hydraulic modeling and CCTV inspection of the sewer system, the recommendations included relining sanitary sewers, some storm sewer separation, upgrading the sewer pump station, and up-sizing the main sanitary sewer trunk line. This combination of inflow and infiltration removal, combined with a better and larger collection system leading to the plant, was designed to deal with the Village’s SSO issues on a comprehensive basis.
The upgrades to the wastewater treatment plant included installing a new mechanical fine screen and a new grit removal system, creating a new Headworks Building, adding a secondary clarifier, and providing other necessary mechanical upgrades.
The Engineering Report was used to support a successful WIIA grant application, securing $3,000,000 for the Village, and a CWSRF subsidized financing applications to finance the project and solve the sewer overflows.
Delaware Engineering’s scope of work included planning, grant and financing assistance, creation of the engineering study, SEQRA environmental review, plant and systems design, bidding, construction administration, construction observation, and start-up assistance.