NC0055786_Authorization to Construct_19990823

NPDES DOCUMENT :MCANNIN`: COVER SHEET
NC0055786
Lexington Regional WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
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Authorization to Construct (AtC) :,
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
August 23, 1999
Thus document is printed on reuse paper - ignore any
content on the reirerse side

THE CITY OF
NORTH
28 WEST CENTER STREET
LEXINGTON, NC 27292
August 23, 1999
LEXINGTON
CAROLINA
"SERVING THE COMMUNITY SINCE 1828"
[�Ti [-IONE [phone]
NPDES Unit
P.O. Box 29535
Raleigh, N.C. 27626-0535
Allr :1
ff
DckH ¢j�ARCE BRANCH
TY
PONT
Re: Permit No. NC0055786
Authorization to Construct Pump Replacement in Lift Station
Lexington Regional WWTP
Davidson County
Dear Sirs:
Attached are three copies of a partial certification for the above ATC. We have completed
replacement of one of the two screw pumps involved in this ATC. The second pump should be
replaced by January, 2000.
Please refer any questions on this to my attention at 336-243-2489.
Sincerely,
RogeriSpach
RS/kb
cc: Jennifer Frye, WSRO

Permit No: NC0055786 - Authorization to Construct
Pump Replacement in Lift Station - Lexington Regional WWTP - Davidson County
ENGINEER'S CERTIFICATION
X Partial ___
I, Jeff H. Edmonds
Final
Carolina, having been authorized to
Above
Project Name
for the Permittee hereby state
construction such
the appro
, as a duly registered Professional Engineer in the State of North
observe (periodically, weekly, full time) the construction of the project,
Lexington Regional WWTP
, 500 Glendale Road, Lexington, Davidson
Location and County
the best of my abilities, due care and diligence was used in the observation of the
was ob d to be built within substantial compliance and intent of this permit,
and o • porting materials.
Registration No. 17106
Replacement of one screw pump in the Second Stage Lift Station.
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• State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
June 4, 1999
Mr. Roger Spach
City of Lexington
28 West Center Street
Lexington, North Carolina 27292
weE
DENR
Subject: Authorization to Construct
NC0055786; ATC#055786ACC
City of Lexington
Davidson County
Dear Mr. Spach:
A letter of request for Authorization to Construct was received by the Division on March 19,
1999, 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 facilities at the City of Lexington
wastewater treatment system, which discharges via NPDES-permitted Outfall 001 into Abbotts Creek in
the Yadkin -Pee Dee River Basin. Specifically, authorization is granted for the following construction
activities:
• Replacement of the chlorine gas disinfection system with sodium hypochlorite.
• Installation of two sodium hypochlorite storage tanks, containment system, chemical feed pumps,
and necessary piping.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES
Permit No. NC0055786 issued April 29, 1994 with subsequent modifications, and shall be subject to
revocation unless the wastewater treatment facilities are constructed in accordance with the conditions
and limitations specified in Permit No. NC0055786. Failure to abide by the requirements contained in
this Authorization to Construct may subject the Permittee to an enforcement action by the Division of
Water Quality 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. 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
Caroline Division of Water Quality. The Operational Agreement between the Permittee and the
Environmental Management Commission is incorporated herein by reference and is a condition of this
permit. Noncompliance with the terms of the Operational Agreement shall subject the Permittee to all
sanctions provided by G.S. 143-215.6 for violation of or failure to act in accordance with the terms and
conditions of this permit.
Upon classification of the facility by the Certification Commission, the Permittee shall employ a
certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater
treatment facilities. The ORC must hold a certificate of the type and grade at least equivalent to or
greater than the classification assigned to the wastewater treatment facilities by the Certification
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Authorization to Construct
ATC# 055786ACC; NC0055786
City of Lexington
June 4, 1999
Page 2
Commission. The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of Title 15A, Chapter 8A, .0202.
In the event that the facility fails 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 Winston-Salem Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an on -site 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 completed certification to: North Carolina DENR-DWQ, NPDES Unit, P.O.
Box 29535, Raleigh, NC 27626-0535.
One (1) set of approved plans and specifications is being forwarded to you. A copy of the
approved plans and specifications shall be maintained on file by the Permittee for the life of the facility.
If you have any questions or need additional information, please contact Tom Belnick, telephone number
[phone], extension 543.
Since
Qerr T. Stevens
cc: Central Files
NPDES Unit
Winston-Salem Regional Office, Water Quality
Technical Assistance and Certification Unit