NC0004961_Authorization to Construct_19911030

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State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor George T. Everett, Ph.D
William W. Cobey, Jr., Secretary Director
October 30, 1991
Mr. Timothy Huffman, Design Engineer
Design Engineering Department
Duke Power Company
Post Office Box 33189
Charlotte, North Carolina 28242
Subject: Permit No. NC0004961
Authorization to Construct
Duke Power Company
Riverbend Steam Station
Wastewater Treatment Facility
Gaston County
Dear Mr. Huffman:
A letter of request for an Authorization to Construct was received July 5, 1991 by the Division and
final plans and specifications for the subject project have been reviewed and found to be satisfactory.
Authorization is hereby granted for the construction of 12,500 GPD domestic wastewater treatment system
consisting of a distribution box followed by three 4,000 gallon .septic tanks in parallel, a 1,200 gallon
holding tank with dual 55 GPM pumps and high water alarms, and the continued use of the existing ash
basin for final treatment with discharge of treated wastewater into the Catawba River.
This Authorization to Construct is issued in accordance with Part III paragraph A of NPDES
Permit No. NC0004961 issued November 30, 1989, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in
Permit No. NC0004961.
The sludge generated from these treatment facilities must be disposed of in accordance with G.S.
143-215.1 and in a manner approved by the North Carolina Division of Environmental Management.
In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective action, including those as may be required by this
Division, such as the construction of additional or replacement wastewater treatment or disposal facilities.
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 704/663-1699 919j733-2314 919/946-6481 919/395-3900 919/896-7007
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

Permit No. NC0004961
Authorization to Construct
October 30, 1991
Page 2
The Mooresville Regional Office, phone no. [phone], shall be notified at least forty-eight
(48) hours in advance of operation of the installed facilities so that an in-place inspection can be made.
Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m.
until 5:00 p.m. on Monday through Friday, excluding State Holidays.
Upon completion of construction and prior to operation of this permitted facility, a certification
must be received from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC
27626-0535.
Upon classification of the facility by the Certification Commission, the Permittee shall employ a
certified wastewater treatment plant operator to be in responsible charge of the wastewater treatment
facilities. The operator must hold a certificate of the type and grade at least equivalent to the classification
assigned to the wastewater treatment facilities by the Certification Commission. Once the facility is
classified, the Permittee must submit a letter to the Certification Commission which designates the operator
in responsible charge within thirty days after the wastewater treatment facilities are 50% complete.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
A leakage test shall be performed on the septic tanks and dosing tank to insure that any exfiltration
occurs at a rate which does not exceed twenty (20) gallons per twenty-four (24) hour per 1,000 gallons of
tank capacity. The engineer's certification will serve as proof of compliance with this condition.
Failure to abide by the requirements contained ithis Authorization to Construct may subject the
Permittee to an enforcement action by the Division of �nvironmental Management in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying
with any and all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Mr. Dana Bolden, telephone number 919/733-
5083.
Sinc ely,
George T. Ev ett
cc: Gaston County Health Department
Mooresville Regional Office
Training and Certification Unit