publisher of On-Site Treatment of Creosote and Pentachlorophenol Sludges and Contaminated Soil.. Ada, OK. 1991 On-Site Treatment of Creosote and Pentachlorophenol Sludges and Contaminated Soil.. Ada, OK. 1991 Characterization and Laboratory Soil Treatability Studies for Creosote and Pentachlorophenol Sludges and Contaminated Soil Project Summary.. Ada, OK. 1989