What began as a small water system purchased by the City of Greenville more than 80 years ago has grown into a robust system meeting the drinking water needs of more than 350,000 South Carolinians. As in the past, the system has been structured to anticipate growing demand for both residential and commercial customers for the next century in Greater Greenville area. Greenville Water receives most of its water from two large mountain watersheds. These 26,000 acres of pristine watershed are located about 25 miles north and northwest of the City of Greenville in the foothills of the Blue Ridge Mountains. The Commission-owned watersheds are well protected. There are no residents, no commercial, agricultural or industrial facilities located within the watersheds. These uniquely protected areas are continuously guarded to prevent trespassing–further preventing contamination of the water supply. In 1993, the Commissioners signed a Conservation Easement with The Nature Conservancy to further document the protection afforded these pristine lands. Because the watersheds are in a natural, pristine condition, the water quality in the reservoirs is of very high quality. The water is first naturally filtered over these forested areas. The water collected in the outcropping springs gradually flows into the streams which are then carried into either of two man-made reservoirs; one on the headwaters of the South Saluda River (Table Rock) and the other on the headwaters of the North Saluda River.
Table Rock Reservoir
The Table Rock Reservoir was placed in service in 1930 with a 30-inch pipeline serving the City. In 1939, a second 30-inch pipeline was installed to increase the capacity to 18 million gallons per day (MGD). In 1954, a booster pumping station was installed to increase the capacity of these two lines to 30 MGD. This station was modernized in 2000.
The North Saluda Reservoir
The North Saluda Reservoir was placed online in January 1961 with a 48-inch pipeline supplying the Greenville area. This line has a capacity of 24 MGD by gravity and, with the addition of the pumping station in 1973, the line capacity is 63 MGD.
L.B. Stovall Water Treatment Plant
In July 2000, a state of the art 75 MGD filtration plant was placed in service to provide filtration for all water derived from Table Rock and North Saluda Reservoirs. The new plant incorporates Dissolved Air Flotation (DAF) technology prior to filtration and is currently the largest plant of this type in the United States.
Witty Adkins Water Treatment Plant
The Witty Adkins Water Treatment Plant began service in 1985. The Adkins plant, named after General Manager Witty Adkins, is a conventional filtration facility, located in Pickens County on Lake Keowee. In 2004, the Witty Adkins Water Treatment Plant completed a 30 MGD expansion project continuing Greenville Water’s proactive approach to supplying high quality drinking water. Now rated at 60 MGD, production can be further increased to 90 MGD by adding additional pumps. In an effort to continuously improve our system construction is in progress for a phased addition of a second pipeline across part of Pickens County to augment transmission capacity from the Witty Adkins Water Treatment Plant. Other planned modifications include replacement of a 22 MG reservoir in Travelers Rest with two 8 MG concrete reservoirs and a new intake structure at the Table Rock reservoir. In addition, there is an active waterline replacement program along with routine planned expansion of the distribution system.
Distribution Reservoirs and Pipeline Grid
Water storage reservoirs are placed at strategic locations throughout Greenville Water. The reservoirs are located at appropriate elevations to maintain adequate distribution system pressure during periods of high usage and to provide reserve capacity for fire protection. The existing transmission, feeder and distribution mains are continually being extended and improved to meet the demands of the growing service area. The system is 100 percent metered ensuring all customers are treated equitably. A meter maintenance and replacement program maintains meter accuracy. Fire hydrants are provided throughout the system to meet the particular fire service rating classification of each area.