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Water Source

Where does Your water come from?

Mount Pleasant Waterworks has two water sources, groundwater from the Charleston Aquifer (also known as Middendorf Aquifer) and purchased surface water from Charleston Water System.

Source 1: Groundwater

Your water comes from the Charleston Aquifer, a pristine groundwater source estimated to be more than 50,000 years old. Six wells are drilled at an average of 2,000 feet below the earth’s surface and raw water is pumped to four Reverse Osmosis treatment plants and disinfected with chloramines. 

Source 2: Purchased Surface Water

MPW has a wholesale contract with Charleston Water System to purchase treated surface water to help satisfy the water demand in our service area. Drinking water is sourced from the Bushy Park Reservoir and the Edisto River, treated by conventional water treatment, and disinfected with chloramines. 

Charleston Aquifer illustration

Water Filling Station Locations


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