Home > Programs > Project Review/ Permitting > Southeast Pa. Groundwater Protected Area > GWPA GIS Data Sets > Southeastern Pennsylvania Ground Water Protected Area (GWPA) GIS Data Sets
Southeastern Pennsylvania Ground Water Protected Area (GWPA) GIS Data Sets

Geographical Information System (GIS) data sets for the GWPA were developed by the United States Geological Survey (USGS) for the Delaware River Basin Commission to assist in the assessment of water resources (USGS Open File Report 98-571). The GIS data sets contain the following coverages:

Coverages (Shape File Format)
gwpa_gis.zip (8.4MB)

basin Subbasin Delineation Data Set (polygon coverage)
streams Stream Data Set (line coverage)
mun Political Boundary Data Set (polygon coverage)
geol_det Detailed Geology Data Set (polygon coverage)
geol_gen Generalized Geology Data Set (polygon coverage)
flts_dikes Faults/Dikes of all the study area (line coverage)
with_cip Withdrawals, commercial, industrial, public (point coverage)
discharge_ind Discharges, industrial (point coverage)
discharge_mun Discharges, municipal (point coverage)
rech_coin Recharges, commercial, industrial (point coverage)

In addition to the above GIS coverages, access database, excel, .dbf, and metadata files are included in the report. See the readme.txt file for a complete description of available files. Please note that all coverages are projected in UTM, zone 18 meter NAD 27, and that ground and surface water withdrawal data is for 1996.

Access Database Files (all contained within DRBC.mdb)
gwpa_tab.zip (658KB)

munis_basins Names and SQM of all municipalities in each subbasin
gengeosqm SQM of each generalized geolgic unit in each subbasin
baseflows Annual avg. base-flow for each subbasin
edwtotnet Total & net estimate of domestic withdrawal for each subbasin
basins_munis Names and sqm of all subbasins in each municipality
fipscntycode County code of each municipality
mun_sfa SQM of municipalities in each Sewer Service Area
mun_wfa SQM of municipalities in each Water Service Area
dis_in Discharges, industrial
dis_mun Discharges, municipal
recharges Recharges, commercial, industrial
withdrawals Withdrawals, commercial, industrial, public

DBF files (to be used in Arcview). These are triplet files.
Each file contains a .dbf, .inf., and an .mdx file.

dis_in.dbf Discharges, industrial
dis_mun.dbf Discharges, municipal
recharge.dbf Recharges, commercial, industrial
withdraw.dbf Withdrawals, commercial, industrial, public
edwtotne.dbf Total & net estimate of domestic withdrawal for each subbasin
gengeosq.dbf SQM of each generalized geolgic unit in each subbasin
munis_ba.dbf Names and SQM of all municipalities in each subbasin
basins_m.dbf Names and SQM of all municipalities in each subbasin
baseflow.dbf Subbasin baseflows with SQM

 Documentation Files
gwpa_doc.zip (64KB)

detgeo.doc
gengeo.doc
dis_in.doc
dis_mun.doc

rech_coin.doc

with_cip.doc
gwpa gis use.doc