HEMPHILL AND CHATTAHOOCHEE WATER TREATMENT PLANTS

Atlanta Water Supply Program Phase 1

Atlanta, GA | CM at-Risk

The $300 million expansion of the City’s raw water storage capacity will provide Atlanta with a reliable supply of drinking water for the next 100 years and increase the emergency raw water reserve from three days to more than 30 days. The project includes the conversion of a 400-foot-deep rock quarry to a 2.4-billion-gallon facility; blasting of two circular 20- and 35-foot diameter, 200- and 300-foot-deep tunnel shafts near the quarry; five eight-foot diameter tunnel shafts; new power substation; a 180-mdg Hemphill Pump Station with four vertical turbine pumps; a 253-mgd Quarry Pump Station with four vertical turbine pumps and three submersible turbine pumps; and mechanical, electrical and SCADA associated with the pump stations. Work involves digging, boring and installing a five-mile, 10-foot-diameter tunnel from the quarry connecting to the Hemphill and Chattahoochee Water Treatment Plants.

Pursing LEED Silver Pump Stations and Envision Certification