Juliane B. Brown James I. Sams III Steven D. McAuley 1997 <p>Surface-water and ground-water quality and aquatic life can be significantly affected by the following principal issues identified in the Allegheny-Monongahela River Basin:</p><ul><li>Contaminants common to surface and under-ground coal mine discharge such as acidity, iron, aluminum, manganese, and sulfate.</li><li>Volatile organic compounds (VOC’s), pesti-cides, and nutrients from increased urbanization.</li><li>Runoff and loading of nutrients and pesticides to streams from nonpoint and point sources such as agricultural land uses.</li><li>Radon in ground water.</li></ul> application/pdf 10.3133/ofr97246 en U.S. Geological Survey NAWQA, National Water-Quality Assessment Program; Allegheny-Monongahela River Basin reports