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NC DEQ »   News »   Key Issues »   Coal Ash Excavation »   Facilities and Permits »   Dan River Steam Station

Dan River Steam Station

Three retired units, located in Rockingham County. Two ash ponds.

  • Information on the Feb. 2, 2014 Dan River coal ash spill

NPDES Information

  • NPDES Permit
  • Letter sent to Duke Energy Feb. 25 regarding NPDES permit
    • Facilities that discharge wastewater to streams, lakes and other state waters are regulated through National Pollutant Discharge Elimination System – or NPDES – permits. The permits include federal and state regulatory requirements for the protection of human health and aquatic life. In North Carolina, electrical generating facilities that have coal ash ponds are also required to monitor groundwater in accordance with the state's regulatory program. 
    • This document contains groundwater monitoring data for the Dan River facility from Jan. 2010 - Feb. 2014.
  • FAQ: What is coal ash and the wastewater discharge?
    • During the last five years the following parameters have been monitored by the Dan River facility in association with their federal discharge permit: Arsenic, Selenium, Copper, Iron, Sulfate, temperature, pH, Total Suspended Solids, oil and grease and nutrients including nitrogen and phosphorus. They have also been required to perform Whole Effluent Toxicity testing – a test that uses the entire waste stream at different concentrations to evaluate its effect on aquatic life.
    • The wastewater is analyzed, in accordance with EPA guidance, for its potential to be noncompliant with state water quality standards. The analysis of data indicates that the concentration of the compounds monitored at the Dan River facility is significantly lower than what is allowed by EPA. The Dan River facility has also consistently passed all quarterly Whole Effluent Toxicity tests.
    • Ash has a large variety of constituents, it is mostly consists of silicon oxide, iron oxide, and aluminum oxide. But it also has trace amounts of arsenic, selenium, mercury, boron, thallium, cadmium, chlorides, bromine, magnesium, chromium, copper nickel, and other metals.
    • The ash composition varies widely depending on the coal type and origin, burning regime, air pollution control equipment, etc. 

Inspections

  • Construction Stormwater Permit Inspection - Dan River
  • NPDES Permit Modification Inspection  - Dan River
  • Dam Inspection Report - Dan River

Dam Safety

  • Dam Inspection Report

    • Dan River Primary Pond Inspection 02-03-14.pdf
    • Dan River Secondary Pond Inspection 02-03-14.pdf
  • March 5 letter sent to Duke Energy requesting EAPs and pipe videos
  • (August 2014 Notice of Deficiency) Dan River Secondary Ash Pond
  • Letter sent to Duke Energy Feb. 14, 2014 regarding stormwater pipe
  • Stormwater pipe inspection video part 1
  • Stormwater pipe inspection video part 2
  • Diagram of an earthen dam

Solid Waste

Dan River, Permit 7906-INDUS-2016 - Solid Waste Permitting Documents

Enforcement Actions

See the Dan River Spill page for more complete information on enforcement actions. 

Environmental Justice Review Documents

  • Dan River Steam Station - Environmental Justice Impact Statement, issued to EPA Office of Civil Rights
  • Dan River Steam Station - Landfill Has Been Permitted in Your Community
  • Dan River Steam Station Information Session Presentation

Facilities and Permits

  • Allen Steam Station
  • Asheville Plant
  • Belews Creek
  • Buck Steam Station
  • Cape Fear Power Station
  • Cliffside Steam Station
  • Dan River Steam Station
  • H.F. Lee Power Station
  • Marshall Steam Station
  • Mayo Power Station
  • Riverbend Steam Station
  • Roxboro Power Station
  • Sutton Power Station
  • Weatherspoon Steam Electric Plant

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https://deq.nc.gov/news/key-issues/coal-ash-excavation/facilities-and-permits/dan-river-steam-station