Coal Ash Pond Number Two

About Coal Ash Pond Number Two

The primary purpose of Coal Ash Pond Number Two is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Dominion Energy South Carolina Inc (private). It impounds the Wateree River Offstream.

The dam stands 20 feet tall, creates a reservoir covering 77 acres, and has a maximum storage capacity of 1,413 acre-feet. Completed in 1970, the structure is well into its service life at over 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 03/28/2017.

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