NC0027359_Correspondence_20050817

NPDES DOCUMENT :MCANNINO COVER SHEET
NPDES Permit:
NC0027359
Hiwassee
Hydro Plant
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Permit
History
Document Date:
August 17, 2005
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APR-09-1996 07:46
P.02/05
Environmental Document Type: NPDES Correspondence
August 17, 2005
Mr. Keith Haynes
Department of Environment
and Natural Resources
Division of Water Quality
2090 U.S. Highway 70
Swannanoa, North Carolina 28778
Dear Mr. Haynes:
Reference: August 4 letter from Keith Haynes to Janet Herrin - Compliance Evaluation
Inspection Report - Hiwassee Hydro Plant (HIH), - National Pollutant
Discharge Elimination System Permit Number NC0027359
Per your request in the referenced report, enclosed are plant system schematic
drawings 47W2303SR5 (Valve Operation Diagram - Unwatering and Filling Systems)
and 47W2306S412 (Valve Operation Diagram - Raw Water System) showing the
locations of all outfalls at HIH.
The minimum normal operating tail water level at HIH is at elevation 1272.5. The
discharge elevation for each outfall is listed below:
Outfall #001
Outfall #002
Outfall #003
Outfail #004
Outfall #005
Discharge Elevation 1265.17
Discharge Elevation 1270.0
Discharge Elevation 1268.5
Discharge Elevation 1264.0
Discharge Elevation 1267.0
All the outfalls are below the minimum tail water levels and, therefore, are not visible
from the surface.

APR-09-1996 07:46
P.03/05
Mr. Keith Haynes
Page 2
August 17, 2005
If there are any questions or additional information required, please contact Melissa
Tupps at [phone].
Sincerely,
(Original Signed by Janet C. Herrin)
Janet C. Herrin
Senior Vice President
River Operations
MST:LCB
Enclosures
cc (Enclosures):
Frank H. Barber, HIH 1 A-MRN
Neil E. Carriker, - 2U-C
Bridgette K. Ellis, 11 B-K
Wayne L. Poppe, LP -C
Melissa S. Tupps. RAC 1 •
Janet K. Watts, LP 5D-C
EDMS, WT 10D-K
Prepared by Melissa S. Tupps, approved by Neil E. Carriker and Wayne L. Poppe.

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