The Leader in Wellpoint System Dewatering and Environmental Remediation for Over 70 Years. CROY Dewatering is a full service wellpoint system dewatering and environmental company that provides turnkey dewatering services for the construction industry. CROY was the first to provide PVC wellpoints to the dewatering industry and CROY’s patented wellpoints continue to produce the highest flow rates in the industry. CROY manufactures a full line of dewatering pumps for wellpoint, sock, and open pumping applications.