Transport, fate, and effects of energy-related pollutants: evaluation of surface and groundwaters. Second progress report, Appendix 1, preliminary listings of sensitive surface waters

In FY 81 work has concentrated on the acquisition of new water quality data for inclusion in the Acidification Chemistry Information Database (ACID), on expanding the list; of chemical variables in the database, on devising statistical methods for examining and improving the quality of the component data sets, and on analyses of temporal trends in water quality for selected states. ACID now contains one and a half million data values collected on a half million sample dates from forty thousand stations. These data were collated from 102 separate sources. This report also describes the current contents and status of ACID, presents results of searches for erroneous data, and describes ongoing and planned quality control procedures (with examples).