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11/9/2020 Update: Public Notice of Wastewater Overflow

November 9, 2020

November 9, 2020 Situation Update - Water conditions at the Oyster Point retention pond have returned to normal and the Public Notice request to not access the water has ended. 

Mount Pleasant Waterworks is dedicated to improving the water quality of our natural areas. Thank you for your patience in this matter. 


November 5, 2020 – An estimated 20,000 gallons of wastewater overflowed from a break in a force main located on Rifle Range Road in Mount Pleasant, S.C. The wastewater spill was reported at 8:05 p.m. on November 4, 2020 and was contained at 1:30 a.m. on November 5, 2020. The spill was due to a vehicle driving over a valve box causing a break in a 2-inch force main serving a residential grinder pump. The overflow impacted a retention pond located at the entrance of the Oyster Point subdivision. No property was damaged because of the spill.

As of the time of this notice, Mount Pleasant Waterworks (MPW) has repaired the 2-inch force main, reclaimed a portion of the spill, flushed the storm drain system, and aerated the retention pond. Per South Carolina Department of Health and Environmental Control (SCDHEC) requirements, MPW is also collecting water samples from the retention pond and consulting with SCDHEC to assess and monitor water conditions at this site until conditions return to normal.

We will continue to monitor the situation and provide updates as necessary.


About Mount Pleasant Waterworks: Mount Pleasant Waterworks (MPW) is a public water and wastewater service utility located in Mount Pleasant, S.C. Established in 1935, MPW provides clean drinking water and provides wastewater services to a population of approximately 90,000 residents. 


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