Winyah Generating Station

Download Data

Winyah Generating Station has 32 groundwater monitoring wells, 21 of which have been polluted above federal advisory levels based on samples collected between November 10, 2015 and December 16, 2019. Groundwater at this site contains unsafe levels of boron, sulfate, arsenic, lithium, radium, molybdenum, cobalt and mercury.

Site description

South Carolina Public Service Authority’s Winyah Generating Station is in Georgetown County, SC, along the banks of the Winyah Bay, close in proximity to the Atlantic Ocean. Winyah Generating Station began operations in 1975 and now operates four coal-fired units capable of producing 1,260 MW. The entire facility is planned to be retired by the company by the end of 2027, after its Board required it be retired by the end of 2028 to comply with new regulations, while Units 3 and 4 are scheduled for retirement by the end of 2023. This station also operates four onsite CCR disposal ponds as well as an onsite man-made cooling water pond. Winyah Generating Station’s South Ash Pond, Ash Pond A, Ash Pond B and Slurry Ponds are regulated under the CCR rule.

You can find the industry-reported data here. For more information on Winyah Generating Station, see EIP’s 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
21 / 32
Wells not shown Locations for the following wells are unavailable:

Download the complete dataset to access monitoring information for these wells.

No exceedances
One or more exeedances
No data available
Other designation
Well "halo" size corresponds to mean concentration. Please note that some wells may not be visible on the map due to overlapping locations.
Pollutants monitored and above guidelines
Tip: Click on a contaminant to view wells that have recorded exceedances. Click again to remove the filter. arsenic boron cobalt lithium mercury molybdenum radium sulfate
Pollutants monitored and below guidelines
antimony barium beryllium cadmium chromium fluoride lead selenium thallium
Pollutants not monitored
ammonia, copper, cyanide, gross alpha particle, gross beta particle, hexavalent chromium, manganese, nickel, nitrate, nitrite, silver, strontium, tritium, uranium

Facility last updated on Wednesday, October 19, 2022 06:00:36 PM EDT