Data layers received 16 April 2003.

CSITE/CAREA_P = groundwater hazard inventory (known contamination sources) (DES, updated monthly)
ASTSITE = Aboveground Storage Tank sites (DES, updated monthly)
USTSITE = Underground Storage Tank sites (DES, updated monthly)
RSITE/RAREA_P = RCRA Hazardous Waste Generators (DES, updated monthly) 
NP_PT/NP_POLY = Nonpoint Potential contamination sources (regional planning agencies, 1995)
LOCALINV = Local potential contamination source inventory (DES, updated monthly)
DAMS = registered dams (DES)

PWS = public water supply sources (DES, updated monthly)
PWS_PH = PWS treatment facilities/pump houses (DES, updated monthly)
WATUSE = Registered Water Users (> 20,000 gal/day) (DES)
WWINV = water well inventory (since 1984; incomplete coverage, DES)

DWPA = drinking water protection areas (DES, updated quarterly)
The two region subclasses are: 
 WHPA = wellhead protection areas for groundwater sources
 SWPA = surface source water protection areas


Contact info:
  Katie Callahan, GIS Planner
  NH Dept of Environmental Services
  Water Supply Engineering Bureau
  6 Hazen Dr, PO Box 95
  Concord, NH  03302-0095
  Phone:  (603) 271-7940
  E-mail: ccallahan@des.state.nh.us

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ALSO:  Layers.3-01.doc is a listing of data sets at DES previously
       provided.