Digital Geodata Series
DGS04-5 Well Head Protection Areas For Public Non-Community Water Supply Wells In New Jersey.
  
Abstract
A Well Head Protection Area for a Public-Non Community Water Supply Well
(WHPA) in New Jersey is a map area calculated around a Public Non-Community
Water Supply Well (PNCWS) that delineates the horizontal extent of ground
water captured by a well pumping at a specific rate over a two-, five-, and
twelve-year period. GIS coverages are produced for each PNCWS well and
for the set of all PNCWS wells in each county and for the state. The
individual, county and state coverages are prepared for distribution as
uncompressed ARC/INFO export files. The export files are combined with
parameter-reference files for each county in compressed 'zip' files for delivery
over the Internet. PNCWS coverages therefore include line and polygon
GIS coverages with associated database files, and parameter-reference files
for data documentation. The documentation files are ASCII text files having
the 'txt' extension. WHPA delineations are conducted in response to the Safe
Drinking Water Act Amendments of 1986 and 1996 as part of the Source Water
Area Protection Program (SWAP). The delineations are the first step in defining
the sources of water to a public supply well. Within these areas, potential
contamination will be assessed and appropriate monitoring will be undertaken
as subsequent phases of the NJDEP SWAP. WHPA delineation methods are
described in "Guidelines for Delineation of Well Head Protection Areas in
New Jersey" available as a download at
(http://www.state.nj.us/dep/njgs/enviroed/freedwn/whpaguide.pdf
)
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