TY - RPRT TI - Laboratory and field evaluation of a flushable oxic limestone drain for treatment of net-acidic drainage from a flooded anthracite mine, Pennsylvania, USA AU - C.A. Cravotta PY - 2008 DO - 10.1016/j.apgeochem.2008.07.015 UR - https://pubs.usgs.gov/publication/70033065 ID - 70033065 ER -