Pennsylvania American Water unveils $24 million upgradePennsylvania American Water completed a $24 million upgrade to the Rock Run Water Treatment Plant in West Caln Township. The upgrade increased capacity, improved reliability and energy efficiency, enhanced safety, and ensures compliance with all water quality standards. The plant delivers drinking water to nearly 12,000 homes and businesses in western Chester County. The upgrade boosted capacity 5 mgd to 7 mgd, replaced aging equipment, added new chemical feed systems, added an emergency generator and replaced pumps and other plant equipment to increase energy efficiency. The project also replaced gas chlorine with on-site liquid
