This page contains various coverages and tables pertaining to ancillary data for ground water sampling sites in the NAWQA study units that began in 1994. Some of the ancillary data layers (excluding land use) also contain sites in study units that began in 1991.
This coverage NAWQAPT and associated files were supplied by Curtis Price in January 2000. This is a single coverage of ALL FY91 and FY94 sites, surface water and ground water: Point data file
The summary table of land use within well buffers was prepared using the coverages available above.
* I had to process the land use and population data by study unit because the coverages containing land use updated by population are organized by study unit. (That is, there was no national coverage of land use and population at that time.)
* I had to process the land use and population data by study unit because the coverages containing land use updated by population were organized by study unit. (That is, there was no national coverage of land use and population at that time.)