NC0083941_AUTHORIZATION TO CONSTRUCT_20011220

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit: NC0083941
Spring Creek WWTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct
(AtC)
Permit Modification
Speculative Limits
201 Facilities Plan
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date: December 20, 2001
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? r. Tweed NC0083941
Page 4 of 4
Engineer's Certification
1, Larry W. Mitchell as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of
.- the project, Spring Creek- WWTP Improvements, Davidson County for the -
Project Name Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the following installations:
• A complete UV disinfection system 11 channel, 1 bank, 4 modules. 2 lamps/module), including
UV channel with weir, controller, UV modules, monitoring panel, power distribution receptacles
and transition boxes.
In lieu of complete system duality - Heater Utilities commits to the following: 1) on-site
standby power to accommodate the additional LTV system, 2) 8 channel dialer capable of
notifying the ORC of low UV intensity, loss of power, loss of bulbs, etc., 3) complete UV
replacement parts to be kept on-site, 4) back-up chlorination and dechlorination,
• all additional piping, valves, control equipment and appurtenances.
Once construction under this ATC has been completed and an Engineer's Certificate has been
submitted, the permittee is authorized to operate the above components and discharge.
NOTE: Because the UV system is designed for an average flow of 0.05 MGD (and peak flow of 0.1
MGD), which is below the permitted flow of 0.08 MGD, the DWQ requires that Heater Utilities submit
* plans and specifications for additional disinfection-or proves trthe current system can treat at a
lee:Notedesign flow of 0.08 MGD (and peak flow of 0.16 MGD) y thre..�LYerage annual flow reaches 90% of
0.05 MGD (0.045 MGD based on a calendar year).
'M- a Mviffion of Water Quality hereby
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receipt/{annd�W=PtE00 0Y
C)atlHcatlon
Signature l 4 str 023
att�ort
Date 12/20/01 rrrr"rnnnuatit�y ..
Note UV System Equipment installed is a Trojan Model UV3200K. The unit is 6-;ihches
wider with four modules, eight lamps and capable of disinfecting 0.2 MGD peak
hydraulic flow.
� iWllY ,j,loz
Mall this Certification to the NPDES Unit
DENR/DWQ
1617 Mail Service Center
Raleigh, NC 27699-1617
I�)
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State of North Carolina
Department of Environment •
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor NCDENR
William G. Ross, Jr.,Secretary
Gregory J. Thorpe, Ph.D., Acting Director NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
October 17, 2001
Mr. Jerry H. Tweed, Vice President
Heater Utilities
202 MacKenan Court
Cary, North Carolina 27511
Subject: Authorization to Construct Permit Issuance
UV Disinfection System
Heater Utilities/ Spring Creek WWTP
NPDES PermitNCO083941
Davidson County
Dear Mr. Tweed:
A letter of request for an Authorization to Construct (ATC) was received June 26, 2001 and final
plans and specifications for this project have been reviewed and found to be satisfactory.
Authorization is hereby granted for additional components at the Spring Creek WWTP. Specifically,
this ATC allows the installation of:
• A complete UV disinfection system [1 channel, 1 bank, 2 modules, 2 lamps/module], including
UV channel with weir, controller, UV modules, monitoring panel, power distribution receptacles
and transition boxes,
In lieu of complete system duality- Heater Utilities commits to the following: 1) on-site
standby power to accommodate the additional UV system, 2) 8 channel dialer capable of
notifying the ORC of low UV intensity, loss of power, loss of bulbs, etc., 3) complete UV
replacement parts to be kept on-site. 4) back-up chlorination and dechlorination,
• all additional piping, valves, control equipment and appurtenances.
Once construction under this ATC has been completed and an Engineer's Certificate has been
submitted, the permittee is authorized to operate the above components and discharge.
NOTE: Because the UV system is designed for an average flow of 0.05 MGD (and peak flow of 0.1
MGD), which is below the permitted flow of 0.08 MGD, the DWQ requires that Heater Utilities submit
plans and specifications for additional disinfection, or prove that the current system can treat at a
design flow of 0.08 MGD (and peak flow of 0.16 MGD) when the average annual flow reaches 90% of
0.05 MGD (0.045 MGD based on a calendar year).
This Authorization to Construct is issued in accordance with NPDES Permit No.
NCO08394lissued May 24, 1999 and shall be subject to revocation unless the wastewater treatment
facilities are constructed in accordance with the conditions and limitations specified in the permit.
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-161 7 -TELEPHONE [phone]/FAX [phone]
AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER- 50%RECYCLED/ 1 0%POST-CONSUMER PAPER
VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES

. Mr. Tweed NC0083941
Page 2 of 4
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 Water Quality.
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 Winston-Salem Regional Office, telephone number (336) 771 - 4600, shall be notified at
least forty-eight (48) hours in advance of operation of the installed facilities so that an in-place
inspection may 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 classification of the facility by the Certification Commission, the Permittee shall employ a
certified water pollution control treatment system operator to be in responsible charge (ORC) of the
water pollution control treatment system. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the water pollution control treatment
system by the Certification 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 8G, .0202. The
ORC of the facility must visit each Class I facility at least weekly and each Class II, III, and IV facility
at least daily, excluding weekends and holidays, and must property manage and document daily
operation and maintenance of the facility and must comply with all other conditions outlined in Title
15A, Chapter 8G, .0204. Once the facility is classified, the Permittee must submit a letter to the
Certification Commission which designates the operator in responsible charge within: (A) Sixty
calendar days prior to wastewater being introduced into a new system or (B) within 120 calendar days
of the following, (i) after receiving notification of a change in the classification of the system requiring
the designation of a new ORC and back-up ORC or (it) a vacancy in the position of ORC or back-up
ORC.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for
the life of the facility.
The Operational Agreement between the Permfttee 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.
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.
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 NPDES Unit, Division of Water Quality, 1617 Mail Service
Center, Raleigh, NC 27699-1617.

Mr. Tweed NC0083941
Page 3 of 4
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Ms. Susan A, Wilson, telephone number (919)
733-5083, extension 510.
Sincerely, /
Gsw.v CAN
,,�Gregory J. Thorpe
cc: Central Files
`NPDES.Uni t.-Permit.Films
Winston-Salem Regional Office. Water quality
Technical Assistance and Certification, Tony Arnold
Larry Mitchell, P.E. Earth Tech of NC, Inc.
701 Corporate Center Dr., Suite 475
Raleigh, NC 27606