Using GIS and Environmental Data for the Pima County Brownfield Program
On January 11, 2002, President Bush signed the Small Business Liability Relief and Brownfields Revitalization Act. The law provides funding for communities to clean up and redevelop brownfields, industrial areas with environmental contamination or the potential for contamination. Pima County has a Brownfield grant for the large area west of Davis Monthan Air Force Base, which has a size of 11,923 acres (48 square kilometers) and contains 6078 parcels. To target parcels with the most potential for contamination, Pima County and the Sonora Environmental Research Institute (SERI) compiled environmental data from the USEPA, state of Arizona, and Pima County into a database using GIS. This data included USEPA data hazardous waste permits and toxic releases; air quality permits; wastewater permits; and storm water runoff permits. Fieldwork was conducted to verify the data, and the team ranked the environmental hazards of each parcel in the study area. The final list contains about 550 parcels.