During April and May of 2007, Earth Tech Inc. conducted a pilot study examining the effectiveness of potential treatment for iron and manganese removal at several of the Dennis Water District's groundwater supplies.
Hungerford & Terry, Inc. conducted a pilot study at SCWA’s Madison Hill plant, located on Madison Hill Road, Montauk, New York. The purpose of the study was to determine if the arsenic present in Wells 1, 2 and 3A could be reduced to non-detectable concentrations using the naturally occurring iron and a dual media, Greensand Plus and anthracite bed.
The old system supplied six residents, the schools, the library and the senior center. The rest of the town had individual wells. Now there are approximately 200 connections. The transformation has been a fairly quick and smooth one.