Results: 1 - 9 of 9
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, 1977
Earth Sciences Report
Dec 31, 1955
Report
Feb 28, 1991
Information Series
… economic. The availability of water supply, water quality issues and land-use … of indices including air, water and soil quality, land use …
Dec 31, 1983
Bulletin
… were subject to invasion by salt water during low stage and were … presence or absence of bottom water sands. Mapping of these …
Dec 31, 1956
Earth Sciences Report
Dec 31, 1963
Bulletin