Full Description

Currently 20 percent of US water consumption is supplied by groundwater, and its contamination is causing considerable alarm. In densely populated Central Pierce County (Wash.), groundwater contamination was found to originate from septic tank drainfields. The highest nitrate and coliform concentrations in groundwater occur when infiltrating rainfall dissolves and leaches these contaminants downward. Includes 7 references charts graphs tables.

Product Details

Edition: Vol. 72 - No. 9 Published: 09/01/1980 Number of Pages: 4 File Size: 1 file , 990 KB