All basic and intensive sites and some synoptic sites. Samples were taken from fish species common to and across Study Unit. Stream reaches were co-located with basic sites. Sites represent the variety of land uses within the basin. Once in 1995 Synoptic sites Macroinvertebrates, algae, nutrients, and aquatic and riparian habitat were sampled to assess spatial distribution of biological communities in predominant land uses.
Sites represent urban, agricultural, and mixed land uses.
Existing non-drinking water wells screened near the water table in the urban area were located using a statistically random selection process. Newly installed monitoring wells completed at water table were located using a statistically random selection process. Sampled for algae and chlorophyll. Monitoring wells were installed along flow paths from recharge to discharge area. Wells were nested and sampled top, middle, and bottom of aquifer.