Comparison of Hydrologic Data from Mined and Unmined Areas in the Carbondale Group of Daviess, Pike, and Gibson Counties, Indana

摘要

The study ascertained the baseline hydrologic conditions in Indiana's major coal reserve sequence of rocks, the Pennsylvania Carbondale Group, and the effects of coal mining on the ground water regime. Numerous small acquifers and aquitards and long uncased well intervals made sampling difficult for individual acquifers. Water chemistries vary considerably making generalizations difficult. Water quality standards were exceeded in 85% of wells in both mined and unmined areas for TDS.