NC0076775_Authorization to Construct_19910626

NPDES DOCUMENT SCANNING COVER SHEET
NC0076775
Falls Powerhouse
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct
(AtC)
Permit Modification
Complete File -Historical
Engineering Alternatives (EAA)
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
June 26, 1991
This document is printed on reuse paper - igi ore any
content on the rre'-erse side

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 2761 1
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Mr. Conrad .A. Carter, Jr., P.E.
Environmental Protection Manager
Aluminum Company of America
Post Office Box 576
Badin, North Carolina 28009
Dear Mr. Carter:
George T. Everett, Ph.D
Director
June 26 1991
Subject: Permit No. NC0076775
Authorization to Construct
Falls Power Plant
Wastewater Treatment Facility
Stanly County
A letter of request for an Authorization to Construct was received December 28, 1990 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 a 500 gpd wastewater treatment
facility consistine of a Chromoglass CA-5 package type wastewater treatment plant, a Serfilco Model
PL64OBFS-1 10 micron bag type effluent filter, a tablet type chlorinator, with discharge of treated
wastewater into the Yadkin River classified B & WS-1II waters.
This Authorization to Construct is issued in accordance with Part III paragraph B of NPDES
Permit No. NC0076775 issued May 17, 1990 and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NC0076775.
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.
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.
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 704/663-1699 919/733-2314 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

ti
Mr. Carter
June 26, 1991.
Page Two
Upon completie:: of construction and prior to operation of this permitted facility, a certification
must be received from .. 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 classifiea:: cn of the facility by the Certification Commission, the Permittee shall employ a
certified wastewater tr:.::ment plant operator to be in responsible charge of the wastewater treatment
facilities. The operator ::•..ist hold a certificate of the type and grade at least equivalent to the classification
assigned to the wastev..::er treatment facilities by the Certification Commission. Once the facility is
classified, the Permittee ::.ust submit a letter to the Certification Commission which designates the operator
in responsible charge thirty days after the wastewater treatment facilities are 50% complete.
A copy of the ap:-.oved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
A leakage test sh:al be performed on the Chromoglass unit to insure that any exfiltration occurs at a
rate which does not ex:eed twenty (20) gallons per twenty-four (24) hour per 1,000 gallons of tank
capacity. The engineer. .ertification will serve as proof of compliance with this condition.
Failure to abide b.y the requirements contained in this Authorization to Construct may subject the
Permittee to an enforce: ent action by the Division of Environmental \lana�gement in accordance with
North Carolina General Statute 143-215.6.
The issuance of :ais Authorization to Construct does not preclude the Permittee from complying
_with any and all statute. rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, ar federal) which have jurisdiction.
One (1) set of ,:'proved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Mark Hawes at telephone number 919/733-5083.
cc: Stanly County Health Department
Mooresville Regona1 Office
Training and Certification Unit
David E. Jones. Yadkin, Inc.
;erely,
George T. E