2030 Plan - Grand Strand Water and Sewer Authority

filtration, and disinfection. The plant also uses ozone as part of its intermediate treatment
process. Plans are to expand the plant using similar or compatible technology. Sludge
by-products from the process are currently dried on site and hauled to GSWSA’s land
application site and turf farm in Bucksport. This will continue with the expanded plant.
(2) Bull Creek Water Plant
Plans are to expand the Bull Creek Water Plant by 15 MGD to 60 MGD if necessary.
Based on current flow projections, expansion of the plant will not be required during the
planning period. The plant uses a conventional water treatment process of coagulation,
flocculation, sedimentation, filtration, and disinfection. However, this plant is unique in
that flocculation and sedimentation occur in a patented up flow clarification process and
are directly followed by Greenleaf filters eliminating the usual piping arrangement. Plans
are to expand the plant using an updated version of this process. Sludge by-products will
be disposed onsite at the Bucksport turf farm.
b. Transmission Piping and Pumping Improvements
Transmission piping will primarily be line extensions to those remote areas where service
is not currently available and line size upgrades for growth in those areas where service is
now available. Specific line extensions are listed below along with estimated costs.
Additionally, lines are planned to interconnect with the City of Myrtle Beach water
distribution system through Carolina Forest and across the AIWW. Plans are also
included to upgrade existing water pumping stations and add new pumping stations to
meet pressure requirements as service demands increase.
c. Ground and Elevated Storage Reservoirs
Storage reservoirs are planned to be located throughout the service area to meet fire flow
requirements and meet the peak demand from diurnal flow patterns. Reservoirs are
planned to provide storage equivalent to 25 percent of peak daily usage.
d. Rural Water Program
The plan includes continuation of the rural water program installing an estimated 400
miles of rural water lines at a cost of $50,000,000. The program is based on customer
density requirements of the program of 5 customers per mile while limiting the program
to the installation of 20 miles per year.
e. Aquifer Storage and Recovery (ASR) Wells
A unique component of GSWSA’s water system and future plans is the use of ASR wells
drilled into the Black Creek Aquifer. Currently GSWSA has 12 MGD of ASR capacity
available or under development. The plan projects an additional 21 MGD of capacity for
a total ASR capacity of just over 30 MGD. The goal is to have a six-month supply of
water stored in ASR wells which is equivalent to 70 percent of GSWSA’s peak retail
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