CDM was completing a groundwater assessment for an existing client in Fayetteville when groundwater contamination from an adjacent site raised concerns with the state's DENR. Following a fast-track proposal to DENR, CDM was awarded a contract for the design, construction, operations, maintenance, and monitoring of an interim groundwater remediation system. The team installed a 450-foot-long soil-bentonite slurry wall along the southern side of the adjacent site as a groundwater barrier to protect Fayetteville's drinking water supply from volatile organic compound contamination.
During the expedited design-build project, CDM also designed and installed three new extraction wells and one new monitoring well. To meet the owner's urgent need, the team completed the Interim Remedial Measures Work Plan, including slurry wall mix design, within 14 days of notice to proceed. CDM finished the entire design and construction of the emergency measure in just 4 weeks, and submitted the construction completion report within 21 days of completion of the slurry wall.
CLIENT: North Carolina Department of Environment and Natural Resources
LOCATION: Fayetteville, North Carolina