Some of Sonneborn Incorporated's (Crompton) Resource Conservation and Recovery Act (RCRA) corrective action documents and reports are accessible online:
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Environmental Indicator Human Exposure Sonneborn Incorporated in Petrolia, Pennsylvania (PDF)(10 pp, 95 K)
RCRA Environmental Indicator - Current Human Exposures under Control
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Environmental Indicator Groundwater Sonneborn Incorporated in Petrolia, Pennsylvania (PDF)(14 pp, 91 K)
RCRA Environmental Indicator - Migration of Contaminated Groundwater under Control