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Geographic Information Systems

Download DEQ's GIS data

DEQ Boundaries (regions)

Air Quality 

Air Quality Maintenance and Nonattainment Areas 

Water Quality

Assessment information

2022 Integrated Report (Effective)
This ArcGIS 10.7 geodatabase spatially displays information from Oregon's effective 2022 Integrated Report and 303(d) list submitted to the U.S. Environmental Protection Agency and approved on Sept. 1, 2022.

Other integrated reports - GIS (Informational)

Drinking and groundwater programs

Oregon Lambert Coordinate System

All of DEQ's GIS data is in the Oregon Lambert Coordinate System. 

Map Projection: Lambert Conformal Conic 

Grid Coordinate System: Oregon Lambert Projection


  • 43 00 00.000 /* 1st standard parallel
  • 45 30 00.000 /* 2nd standard parallel
  • -120 30 0.000 /* central meridian
  • 41 45 0.000 /* latitude of projection's origin
  • 400000.00000 /* false easting (meters), (1,312,335.958 feet)
  • 0.00000 /* false northing (meters) 

Horizontal Units: International Feet (.3048 meters or 3.280839895 feet / meter) 

Horizontal Datum: North American Datum of 1983

Vertical Datum: North American Vertical Datum of 1988

Spheroid: GRS 1980
Oregon Lambert is recognized by the European Petroleum Survey Group which maintains and publishes an international coordinate reference system database. The EPSG spatial reference ID for Oregon Lambert is 2992.