Data and analytical type-curve match for selected hydraulic tests at an earthen dam site in Southern Westchester County, New York
Dates
Publication Date
2019-12-06
Start Date
2002-09
End Date
2012-06-28
Citation
Capurso, W.D., Chu, J.J., Chu, S.A., and Noll, M.L., 2019, Data and analytical type-curve match for selected hydraulic tests at an earthen dam site in Southern Westchester County, New York: U.S. Geological Survey data release, https://doi.org/10.5066/P9J404KW.
Summary
This data release contains water level displacement data and analytical type-curve matches for selected hydraulic tests that support USGS Open-File Report 2019-1102, "Slug-test analysis of selected wells at an earthen dam site in southern Westchester County, New York." In 2005, the U.S. Geological Survey began a cooperative study with New York City Department of Environmental Protection (NYCDEP) to characterize the local groundwater-flow system and identify potential sources of seeps on the southern embankment of the Hillview Reservoir in southern Westchester County, New York. The earthen embankment comprises low-permeability glacial clays that were excavated from the site and rest on a veneer of low-permeability glacial deposits [...]
Summary
This data release contains water level displacement data and analytical type-curve matches for selected hydraulic tests that support USGS Open-File Report 2019-1102, "Slug-test analysis of selected wells at an earthen dam site in southern Westchester County, New York."
In 2005, the U.S. Geological Survey began a cooperative study with New York City Department of Environmental Protection (NYCDEP) to characterize the local groundwater-flow system and identify potential sources of seeps on the southern embankment of the Hillview Reservoir in southern Westchester County, New York. The earthen embankment comprises low-permeability glacial clays that were excavated from the site and rest on a veneer of low-permeability glacial deposits that overlie crystalline bedrock. At least two groundwater-flow zones—one shallow and the other deep—overlie the bedrock at the reservoir. Slug-test data were collected from 12 wells at the Hillview Reservoir during August 2007 and from 25 wells at the reservoir and 1 monitoring well south of the reservoir in northern Bronx County in June 2012. Slug-test data from the 38 screened wells were analyzed using the Bouwer and Rice (1976) method to determine the hydraulic conductivity of the sediments in the groundwater-flow zones. The hydraulic conductivity was determined for one well from slug-test data collected by consultants that was published September 2002.
Noll, M.L., Chu, A., and Capurso, W.D., 2019, Slug-test analysis of selected wells at an earthen dam site in southern Westchester County, New York: U.S. Geological Survey Open-File Report 2019–1102, 14 p., https://doi.org/10.3133/ofr20191102.
Chu, A., Noll, M.L., Capurso, W.D., and Welk, R.J., 2023, Hydrologic analysis of an earthen embankment dam in southern Westchester County, New York: U.S. Geological Survey Scientific Investigations Report 2023–5123, 41 p., https://doi.org/10.3133/sir20235123.