NCS000578_Buck Steam SW Permit Public Hearing Speech_20180613

NPDES Stormwater Permit NCS000578 -
Duke Energy/Buck Steam Station
Public Hearing Wednesday, June 13, 2018
Good evening. My name is Rick Riddle, and I also work in DEMLR's
Stormwater Permitting Program. I'll summarize the main features of the draft
industrial stormwater permit for Duke Energy's decommissioned Buck Steam
Station Plant which is a separate permit from the Buck CTCC Station.
• The Buck Steam Station was retired in 2013 after its long life as a coal
generating plant which started in 1926. Buck Steam Station was Duke
Energy's first large capacity coal generating plant built in the Carolinas.
Currently, the plant is undergoing final closure and demolition
procedures
• This draft NPDES Stormwater Permit regulates stormwater
discharges to surface waters, not any wastewater discharges.
• The purpose of this permit is to regulate discharges of stormwater
associated with industrial activities addressed in federal regulations 40
CFR Part 122.26. Those categories include Steam Electric Power
Generation Facilities.
• Some areas are excluded from permit coverage, such as areas without
industrial activities, areas without a potential point source discharge,
and areas draining to wastewater treatment or otherwise permitted
under the wastewater permit. Most plant areas here drain to the Yadkin
River.
• This permit will cover discharges from three (3) stormwater outfalls
that drain areas from the potential ash hauling route along the access
road when ash removal begins
• The permit will also cover discharges from seven (7) stormwater
outfalls that drain the industrial areas on a semi-annual basis until the
permit is rescinded or the outfall does not exist due to demolition.

• This draft permit requires the development and implementation of a
comprehensive Stormwater Pollution Prevention Plan, as well as
quantitative (or analytical) and qualitative (or "visual") monitoring of
stormwater discharges.
• The Stormwater Pollution Prevention Plan is a written management
plan that includes a detailed site map and overview; a pollution
prevention and good housekeeping program; employee training; facility
and stormwater system inspections; certification that any non-
stormwater discharges are appropriately authorized; and a Plan review
and update timetable; in addition to other measures.
• Proposed analytical monitoring parameters include conventional
pollutants, metals, and other potential coal ash constituents.
• The frequency for both visual and analytical stormwater discharge
monitoring is set to quarterly during any coal or ash transport.
• Proposed monitoring does not include discharge limits. Instead the
permit incorporates stormwater benchmark values that guide
management responses. If sample results exceed any benchmark
concentrations, the permittee must take action as outlined in the
permit's tiered response structure.
• Finally, like the wastewater permit, this draft stormwater permit does
not regulate the ultimate fate of the coal ash. This determination will be
made by DEQ in accordance with the Coal Ash Management Act of 2014.
This concludes my overview of the draft NPDES Stormwater Permit. I
will now turn the hearing back to the Hearing Officer.