Water System Improvement Project
The Town of Edisto Beach water supply comes from groundwater wells in the Santee Limestone aquifer. This water supply has elevated levels of chloride, fluoride, and sodium concentrations that affect taste and may cause corrosion in the distribution system and residential plumbing and appliances. The water improvement project was implemented to reduce the mineral content in the water and provide adequate supply to meet high seasonal demands during the summer tourist season which far exceed the demands during the winter months. The project consists of combining reverse osmosis water treatment with additional supply and storage to resolve the dual problems of water quality and water supply.
The project site is located at 2502 Lee Street. The project consists of installing three new 10-inch wells approximately 580 feet deep with submersible pumps and variable frequency drive motors and transmission lines connecting the three wells to the water improvement facility. The plant will house three reverse osmosis treatment skids each with a permeate capacity of 320 gallons per minute for a combined treatment capacity of 1,200 gallons per minute, including a 20% blend with raw well water, chemical systems, motor control center, emergency generator, high service pumps, control room including a supervisory control and data acquisition (SCADA) computer control system, office and restroom. The water treatment discharge line will consist of approximately 1,900 feet of line into the Atlantic Ocean. A concrete clearwell is being constructed under the treatment plant building to provide additional storage of 290,000 gallons. Automatic control valves will be installed on the fill line of both the existing elevated storage tank and the ground storage tank to control the filling of the tanks for water demand.
Thomas and Hutton-Prime Engineer
Harn RO - Prime Reverse Osmosis
McCall Brothers-Well Drillers
Stono Concrete, Inc.- Concrete
Doka USA, Ltd- Formwork
Harris Rebar North Carolina, Inc. -Rebar
Bond Attorney-Howell Linkous & Nettles
Financial Advisor-Municipal Advisors
Underwriters-Raymond James and Oppenheimer& Co.
Rating Agency-Standard and Poors
Auditor-K Eve McCoy
Rate Study-American Engineering Consultants, Inc.