Quality of ground water at selected sites in the upper Mahoning Creek Basin, Pennsylvania

The ground-water quality of the upper Mahoning Creek Basin is largely unknown. Human activities in the basin have altered much of the landscape. The presence of coal mining, oil and gas exploration, agriculture, on-lot septic systems, and commercial development within the basin can introduce contaminants altering the natural chemistry of the ground water. Data collected to document current ground-water quality also can serve as a baseline for comparison of any future water-quality changes by continuing human activities. This report presents the results of a synoptic ground-water-quality sampling in the upper Mahoning Creek Basin. Present ground-water quality in the basin is characterized in relation to published standards, local land-use activities, and other areas with similar natural characteristics.