TY - BOOK AU - Konik, John. CN - TN291 CN - TN291 CY - Chicago : DA - 1980. ID - 32896 KW - Strip mine ponds KW - Water quality. PB - State of Illinois, Institute of Natural Resources, PP - Chicago : PY - 1980. T1 - Some physical, chemical, and biological characteristics of non-problem waters occurring on lands surface-mined for coal / TI - Some physical, chemical, and biological characteristics of non-problem waters occurring on lands surface-mined for coal / ER -