There are distinct, delineated areas included within the AQO Zone,
which are defined based on the characteristics of the surficial geology
underlying the Town according to information from the New York State
Geographic Information System (GIS) Clearinghouse in June 2021, originating
from the United States Geological Survey (USGS), New York Water Science
Center Publication, dated February 8, 2008, entitled Upstate New York
Surficial Aquifer Mapping Program (USGS). Fishkill's aquifer
areas also correspond to surficial geologic deposits depicted on the
Surficial Geologic Map of New York, which was compiled and edited
by Doanld H. Cadwell, University of the State of New York, in 1989.
The AQO includes the larger Primary Aquifer Region in the eastern
half of the Town, which encompasses unconfined, mid-yield; and kame,
kame terrace, kame moraine, outwash alluvium aquifer areas, as well
as a small area of an unconfined, high-yield aquifer. The AQO includes
two lacustrine, silt and clay aquifer areas on the western side of
Town, to the north and the south of boundaries of the City of Beacon.
Just south of the City of Beacon, the northern end of the southern
lacustrine, silt and clay aquifer area is adjacent to an unconfined,
mid-yield aquifer area, which is also included in the AQO. The AQO
includes Town of Fishkill water supply parcels located within or near
these aquifer areas.