Transmissivity and storage coefficient estimates from slug tests, Naval Air Warfare Center, West Trenton, New Jersey

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An outcrop of bedrock near the Naval Air Warfare Center, in West Trenton, New Jersey.

Summary

Wells open to fractured sedimentary bedrock at the former Naval Air Warfare Center (NAWC) in West Trenton, New Jersey, were slug tested to obtain estimates of transmissivity (T) and storage coefficient (S) for the aquifer material immediately surrounding the wells. The Cooper-Bredehoeft-Papadopulos method or the Butler high-K method was used for analysis. T estimates range from 0.07 to 10,000 square feet per day (ft²/day), and S estimates range from 10^-10 to 0.01. Water levels in 2BR, 18BR, 23BR, 25BR, 27BR, 30BR, 38BR, 40BR, 43BR, 44BR, and 46BR did not recover measurably for more than 20 minutes after slug insertion, indicating likely T estimates of less than 0.07 ft²/day. The mode of S for NAWC wells is 10^-10. Slug test data from 54BR and 62BR matched poorly with analysis method type curves, and estimates of T and S at these wells are considered to be less reliable than estimates for the other wells.