Deptford Township Municipal Utilities Authority: Deptford, New Jersey
The Deptford Township Municipal Utilities Authority derives a majority of its water supply from the PRM Aquifer, a part of the New Jersey Coastal Plain regional aquifer system. The MUA suffered reduced water allocations from this aquifer due to state-imposed cutbacks associated with the designation of state Water Supply Critical Area #2. Therefore, the MUA was interested in determining whether alternate aquifers were available within the township for water supply development, as an alternative to increasing reliance on a regional surface water supplier.
The alternatives analysis focused on identifying whether alternate aquifers could be used to supplement the Townships water supply. This was conducted by reviewing available data and developing a preliminary analytical model to establish the availability of water and feasibility of development of various alternate aquifers underlying the township. This analysis determined that an adequate water supply could be developed from the Wenonah Mount Laurel aquifer. The second phase of this project was then initiated to test the available and permissible water resource available from this aquifer within requirements established by the applicable regulatory agency (NJDEP). This phase of the project involved the installation of five full-scale test/production wells in the shallower aquifer, and the extensive use of the RASA ground water model for the New Jersey Coastal Plain. The model was used to evaluate regional impacts from the proposed pumping, both on surrounding water users and the environment. A key aspect of this phase of the project was evaluating the effects of pumping on protected wetlands and baseflow sources supporting riparian communities in tributary streams to the Delaware River.