NC0041246_Permit Modification_20030425

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Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, Director
Division of Water Quality
April 25, 2003
Thomas C. Seagle III, Maintenance Director
Lincoln County Schools
P.O. Box 400
Lincolnton, North Carolina 28093-0400
Subject: Permit Modification to Extend Ammonia
Compliance Deadline to October 1, 2003
NPDES Permit NC0041246
West Lincoln High School
172 Shoal Road
Lincoln County
Dear Mr. Seagle:
The Division of Water Quality (the Division) has reviewed your request to modify your existing
permit. The Division hereby grants this request in accordance with the requirements of North
Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina
and the U.S. Environmental Protection Agency dated May 9, 1994, or as subsequently amended.
The Division acknowledges that your project to relocate Outfall 001 (ATC No. 041246A01) has
been delayed by a prolonged review process and by inclement weather. Therefore, the Division
shall extend the compliance deadline for ammonia limits to October 1, 2003 (see attached revised
Effluent Limitations page, Footnote #3). Please insert this new page into your existing permit and
discard the old page.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable, you have the right to an adjudicatory hearing upon written request within thirty (30)
days after receiving this letter. Your request must be in the form of a written petition conforming
to Chapter 150B of the North Carolina General Statutes, and must be filed with the office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless
such a demand is made, this permit shall be final and binding.

Lincoln County Schools
West Lincoln High School WWTP
Permit Modification to Extend the Ammonia Compliance Deadline
NC0041246
This permit is not transferable except after notifying the Division of Water Quality. The Division
may require modification, or revocation and re -issuance of this permit. Please notice that this
permit does not affect your legal obligation to obtain other permits required by the Division of
Water Quality, the Division of Land Resources, the Coastal Area Management Act, or other
federal or local governments.
If you have questions, or if we can be of further service, please contact Joe Corporon at
([e-mail]] or call [phone], extension 597.
Respectfully,
vA1an W. Klimek, PE.
Enclosure: Change page for modification of permit NC0041246
cc: Central Files
Mooresville Regional Office, Water Quality Section
NPDES Unit
Compliance and Enforcement Unit

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A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting until relocation of the outfall to Indian Creek, but
lasting no later than the expiration date of this permit, the Permittee is authorized to discharge treated
domestic wastewater through Outfall 001. Such discharges shall be limited and monitored by the Permittee
as specified below:
PARAMETERS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample
Location1
Flow
0.010 MGD
Weekly
Instansaneou
I or E
BOD, 5 day, 20° C
30.0 mg/L
45.0 mg/L
2/Month
Grab
E
Total Suspended Residue
30.0 mg/L
45.0 mg/L
2/Month
Grab
E
Fecal Coliform 2
200 / 100 ml
400 / 100 ml
2/Month
Grab
E
NH3 as N (April 1-October 31)
2.0 mg/L3
2/Month
Grab
E
NH3 as N (November 1— March 31)
4.0 mg/L3
2/Month
Grab
E
Temperature
Weekly
Grab
E
pH4
Weekly
Grab
E
Dissolved Oxygen 5
Weekly
Grab
E
Total Residual Chlorine 6
2/Week
Grab
E
Temperature
Weekly
Grab
U, D
Dissolved Oxygen
Weekly
Grab
U, D
Fecal Coliform
Weekly
Grab
U, D
Footnotes:
1. E = effluent; I = influent; U = upstream (50 feet above); D = downstream (300 feet below)
2. Calculate Fecal Coliform using the geometric mean (see procedure Part 11. Section A
,Paragraph 9b)
3. NH3 (ammonia) Limits: Permittee shall comply with limits beginning October 1, 2003.
4. pH shall not fall below 6.0 nor exceed 9.0 standard units.
5. Dissolved oxygen daily average effluent concentration shall not fall below 5.0 mg/L.
6. Total Residual Chlorine (TRC) shall be monitored only if chlorine is used to disinfect.
Units:
BOD = biochemical oxygen demand
MGD = million gallons per day
ml = milliliters
mg/L = milligrams per liter
µg/L = micrograms per liter
Effluent shall contain no floating solids or foam visible in other than trace amounts.

Re: West Lincoln HS (NC0041246/Lincoln Co)
From:, :ichard Bridgeman <Richard.Briclgemaa lnciil:lil.ncr \' i liii t.: AM
Subject;;Re: West l .incoln [ [S (_NCOO-1 12 ' /1.unco1
To: Charles Weaver <Charies.\\%eaver ancmait.net>
Good morning. I talked with Tom Seagle, Lincoln County Schools'
Maintenance Director, this morning. He indicated that upgrade at West
Lincoln HS is about 50% complete. The relocation of the outfall to
Indian Cr. will occur concurrently with startup of expanded WWTP.
Charles Weaver wrote:
> Richard, T've corrected the TRC limit in RIMS.
> Has this facility relocated its outfall yet? If not, do they plan to
> expand to 0.014 MGD at the time of the relocation?
> Thanks,
> CHW
Richard Bridgeman - [e-mail]
Environmental Chemist II
North Carolina Dept. of Environment & Natural Resources
Div. of Water Quality
919 N. Main St.
Mooresville, NC 28115
Ph: [phone] Fax: [phone]
1 of 1 3/11/2003 3:49 PM

JAN-228-c003 11:25 FROM:
TO:909197330719 P:1/1
TO:
FAX it:
FROM:
DATE:
N. C. DEPARTMENT OF ENVIRONMENT AND
NATURAL RESOURCES
DIVISION OF WATER QUALITY
WATER QUALITY SECTION
ASHEVILLE REGIONAL OFFICE
59 WOODFIN PLACE
ASHEVILLE, NORTH CAROLINA 28801
PHONE: [phone] FAX: [phone]
# OF FACES INCLUDING THIS COVER:
MESSAGE: If questions, please call 828/251-G20a.
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