Originally formed in 1985 as CWM Laboratories to handle water analysis requirements of the mining industry, CWM Environmental ... , Inc. has evolved into a diversified full service environmental firm that is NELAP Accredited and PA DEP Certified. We are here to meet your needs for analytical laboratory testing, ground water monitoring, drinking water and wastewater operations, sludge hauling, pressing and dewatering Now in two locations: Kittanning, PA and Cleveland, OH. read more