HomeMy WebLinkAboutNC0003425_Authorization to Construct_20200608Roxboro ATC History
August 17, 1983 - Construction of a diversion curtain in the existing west ash
basin
March 26, 1986 - enlarge the existing ash settling pond to provide additional
storage capacity and settling efficiency by raising the existing pond dam by 13
feet. Also includes the relocation of the influent pipe and construction of sluice
canals and dikes in the pond to properly channel flows and ensure adequate
retention time for ash settling. Required installation of monitoring wells and
sampling
May 8, 1987 - Construction of approximately 11,785 linear feet of 36 inch
drain pipe, intake structure with bar screen, and filter screen, discharge
structure and appurtenances. Required submittal of a plan of action describing
CP&L intentions for continued monitoring of outfall 001 and criteria to
determine when monitoring shall cease.
August 7, 1989 - construction of a trapezoid weir to replace existing weir and
recalibration of flow meter after installation of the new weir with discharge of
treated wastewater to the Roanoke River.
Roxboro Permit History
Permit Issued June 30, 1981 Expiration: June 30, 1981(Copy of permit
emailed by Duke)
Outfall 001
- discharge of the ash pond for Units 1 and 2. The map shows the
sampling location for this outfall at the intake canal.
Outfall 002
- ash basin Units 3 and 4
Outfall 003
- heated water effluent canal
Outfall 004-
cooling water blowdown unit 3
Outfall 005
- cooling system blowdown unit 4
Outfall 006
- runoff
Outfall 007
- Low vol waste
Outfall 008
- boiler blowdown
Outfall 010
- sewage treatment plant
Outfall 011
- point source runoff
Permit issued: March 13, 1987 Expiration: July 31, 1991 (Copy of permit
emailed by Duke)
Outfall 001
- east ash settling pond
Outfall 002
- west ash settling pond
Outfall 003
- heated water effluent canal
Outfall 004-
cooling water blowdown unit 3
Outfall 005
- cooling system blowdown unit 4
Outfall 006
- coal pile runoff
Outfall 007
- Low vol waste
Outfall 008
- domestic waste
Outfall 009
- chemical metal cleaning waste
Permit issued: April 29, 1994 Expiration: April 30, 1997
002 - ash settling pond
003 - heated discharge canal
004 - unit 4 cooling tower
005 - cooling tower blowdown
006 - coal pile runoff
008 - domestic ww
009 - chemical metal cleaning wastes
Permit issued: January 26, 1998 Expiration: April 30, 2002
002 - ash settling pond
003 - heated discharge canal
005 - cooling tower blowdown
006 - coal pile runoff
008 - domestic ww
Permit issued: December 31, 2002 Expiration: March 31, 2007 Permit writer -
T. Rodriguez
002 - ash settling pond
003 - heated discharge canal
005 - cooling tower blowdown
006 - coal pile runoff
008 - domestic ww
009 - chemical metal cleaning wastes
Permit issued: June 22, 2005 Expiration: March 31, 2007 Permit writer - Dawn
Jeffrey.
002 - ash settling pond
003 - heated discharge canal
005 - cooling tower blowdown
006 - coal pile runoff
008 - domestic ww
009 - chemical metal cleaning wastes
010 - FGD
Permit issued: August 9, 2007 Expiration: March 31, 2012
Permit writer - S. Chernikov.
002 - ash settling pond
003 - heated discharge canal
005 - cooling tower blowdown
006 - coal pile runoff
008 - domestic ww
009 - chemical metal cleaning wastes
010 - FGD