christina river DNREC Mirror Lake clean-up earns more national acclaim; innovative approach reduces pollutants in the Christina River By news.delaware.gov Published On :: Tue, 21 Apr 2020 17:15:37 +0000 DNREC announced it has successfully used an innovative approach to reduce polychlorinated biphenyls (PCBs) in two Delaware waterways. Full Article Department of Natural Resources and Environmental Control Division of Waste and Hazardous Substances News A Street Ditch clean water cleanup Mirror Lake PCBs pollutants waste and hazardous substances WATAR