NC0005126_authorization to construct_19990113

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Permit No. NC0005126
Tyson Foods, Inc.
Harmony (NC) Rendering Facility
ENGINEER'S CERTIFICATION
FOR
TRUCTIc _OF WASTEWATER TREATMENT FACILITIES
I, Dudley C. Liahtsey , air a duly registered Professional Engineer
(please .print)
in the State of North Carolina and have been authorized to observe (circle one: periodically,
weekly, full time) the construction of the subject project for the Permittee:
Project No.. AC0005126
Project: Wastewater Improvemennts Project
Location: Tyson Foods, Harmony (NC) Rendering Facility
Approved Flow: 0.216114.GD (pretreatment system)
0.3 MGD (secondary treatment system)
The project consists of the following wastewater treatment improvements at the "skimmer flows"
pretreatment system:
• construction of one (1) flow equalization basin and one (1) dissolved air flotation (DAF)
unit, with chemical storage and feed systems;
• construction of a process and laboratory, building, in part to house the DAF unit; and
• all associated yard piping, yard structures, lumps, motors, valves, and all other related
facilities as described in the plans and specifications.
I hereby certify that I did regularly observe this project with due care and diligence and that the
construction was completed in substantial conformance with the N?DES permit, the Approval to
Construct, and the approved plans and specifications:
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Upon completion of construction and prior ro operation of the modified fteility, the Perrrtittee shall
provide the Division with a certification from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDEES Perini, this Authorization to Construct:, and the
approved plans and spe .if rrciicns.
Mail the Certification to the NPTJFS Unit, NCDE?IR, P.U. Box 29535, Raloigh, NC 27626-0535,

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
June 1, 1998
Mr. Danny Wyatt
Tyson Foods - Harmony
P.O. Box 88
Wilkesboro, North Carolina 28697
AVA
NCDENR
Subject: Authorization to Construct
Application No. AC0005126
Permit No. NC0005126
Harmony Rendering Plant
Iredell County
Dear Mr. Wyatt:
The Division of Water Quality received Tyson Foods' request for an Authorization to Construct on March
16, 1998, and additional information on April 13 and May 1. The Division has reviewed the final plans
and specifications and the supplemental information for the subject project and found them to be
satisfactory.
Authorization to Construct. The Division hereby authorizes the following wastewater treatment
improvements at the "skimmer flows" pretreatment system:
• construction of one (1) flow equalization basin and one (1) dissolved air flotation (DAF) unit, with
chemical storage and feed systems;
• construction of a process and laboratory building, in part to house the DAF unit; and
• all associated yard piping, yard structures, pumps, motors, valves, and all other related facilities as
described in the plans and specifications.
Upon completion of these improvements and submittal of the Engineer's Certification (see below), the
approved treatment capacity of the pretreatment system will be 0.216 MGD. The approved capacity of the
secondary treatment (aerated lagoon) system remains at 0.5 MGD.
Tyson Foods is authorized to continue its present chemical addition program with the new DAF unit.
Before adopting a modified program, Tyson must prepare a design report for Division approval. The
report should describe the study method used to evaluate alternate treatments, summarizes the test results,
and thoroughly describes the chosen chemical addition program and predicted full-scale performance.
Further, the report should identify all materials tested, dosages used, other significant test conditions, and
the resulting pretreatment performance. The report shall be submitted to Mr. Mike Templeton of the
NPDES Unit at least 30 days prior to full-scale implementation.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES Permit No.
NC0005126 issued July 29, 1994 and modified October 10, 1997, and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0005126.
Notification. 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
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

Permit No. NC0005126
Authorization to Construct
Tyson Foods - Harmony
Page 2
required by this Division, such as the construction of additional or replacement wastewater treatment
or disposal facilities.
The Permittee shall notify the Mooresville Regional Office, telephone number 704-663-1699, 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 of 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
Certification. Upon completion of construction and prior to operation of the modified facility, the
Permittee shall provide the Division with a certification 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.
Continued Requirements. 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.
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 sludge generated from this treatment facility 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.
The issuance of this Authorization to Construct does not excuse 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.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility. One (1) copy of the approved plans and specifications is enclosed for your
records. If you have any questions, please contact Mike Templeton, at telephone [phone],
ext. 541.
Sincerely,
Preston Howard, .fir., P.E.
Enclosures: Project Plans and Specifications
Supplement: WTP Design Summary
Supplement: WTP DAF Information
Engineer's Certification Form
cc: Lewis Gray, Senior Project Engineer, Tyson Foods
Dudley C. Lightsey, P.E., Chas. N. Clark Associates (w/ certification form)
Mooresville Regional Office, Water Quality
Technical Assistance and Certification Unit
Central Files
NPDES Unit Files