Design, Build, Operate and Maintainenance of 99 SWM Facilities located in Charles County, MD. The was a Pilot Program with the SHA to have Contractors operate and maintain designated SWM Facilities in a County. The first one of its kind was located in Charles County, MD. and we were the Contractor performing this project. This project included Routine Maintenance, Remedial Maintenance and Retrofitting of (9) Facilities from Infiltration Trenches to Bio Swales.