Results: 1 - 2 of 2
Dec 31, 1979
Bulletin
… effects of mining activity on water quality vary in intensity, … occasionally exceed drinking water standards regardless of the … are well below drinking water standards. … Hackbarth, D.A. …
Dec 31, 1959
Memoir
… … When the general decline of water levels in many of the deep … River sandstone, the depths to water and the quality of the water; in addition, field tests …