Santee Cooper Regional Water System,
South Carolina
Design and Upgrade of Regional Water Treatment Plant and Water Distribution
System
Santee Cooper is a
state-owned electric and water utility in South Carolina that controls and
operates Lake Moultrie. Lake Moultrie occupies approximately 65,000 acres and
provides a vast resource of raw water for the southeastern South Carolina which
is used as a source for drinking water and for power generation.
Hobbs, Upchurch & Associates has been involved with the Lake Moultrie
Regional Water System since its inception. Flexibility built into the original
design of the water treatment plant and water lines transmission system in 1994
has been successful in meeting the water resource needs of the area. HUA
continues to provide engineering services for the Lake Moultrie Water Agency
related to on-going environmental, security, and maintenance issues.
The Lake Moultrie Water Agency currently serves over 100,000 customers and is
comprised of the Berkeley County Water and Sanitation Authority, the City of
Goose Creek, the Moncks Corner Public Works Commission, and the Summerville
Commissioners of Public Works. These four agencies buy all the water produced
by the water system and sell it to agency members. Santee Cooper owns the
system's treatment plant, pump stations, administrative offices, the 26 miles
of transmission pipeline, and a 1 million gallon elevated water storage tank.
HUA provided water treatment plant design, land surveying, transmission line
design, and construction management for the project. The original Lake Moultrie
Water Agency project was completed under budget and ahead of schedule. The
total project budget was $36 million and final project cost was $34.5 million.
The treatment plant was constructed at a cost of $ .60 per gallon as opposed to
the average construction cost in 1994 of $1.00 per gallon. The design process
was completed in 10 months and the construction period was 18 months.
Hobbs, Upchurch & Associates also expanded the original Lake Moultrie Water
Treatment Plant capacity. Plant capacity was high rated to 30 MGD. This
capacity expansion was possible because of the flexibility and innovation built
into the original design, In addition, pump replacement will result in an
additional 6 MGD capacity. These upgrades yielded a total plant capacity of 36
MGD.
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