NC0040070_Permit (Modification)_20030410

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
April 10, 2003
Mr. Ed Cross
City of Gastonia
P.O. Box 1748
Gastonia, North Carolina 28053
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Subject: NPDES Permit Modification
Permit NCO040070
Gastonia WTP
Gaston County
Dear Mr. Cross:
The Division has reviewed and approved your request to remove the upstream sampling requirements from the
subject permit.
Please find enclosed the revised permit page. The revised page should be inserted into your permit. The old
page may then be discarded. All other terms and conditions contained in the original permit remain unchanged
and in full effect. This permit modification is issued under the requirements of North Carolina General Statutes
143-215.1 and the Memorandum of Agreement between North Carolina and the U. S. Environmental Protection
Agency.
If any parts, measurement frequencies or sampling requirements contained in this permit modification are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days
following receipt of this letter. This request must be a written petition conforming to Chapter 150E of the North
Carolina General Statutes, filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh,
North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
If you have any questions concerning this permit modification, please contact valery Stephens at telephone
number [phone], extension 520.
Sincerely,
A an W. Klimek, P.E.
cc: Central Files
146oresville Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer VISIT US ON THE INTERNET @ httpl/h2o.enr.state.nc.us/NPDES

Permit NCO040070
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFU NT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location
Flow
Weekly
Instantaneous
Effluent
Total Suspended Residue
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
Settleable Solids
0.1 mVL
0.2 ml/L
Weekly
Grab
Effluent
Turbidity)
Weekly
Grab
Effluent
Iron
Weekly
Grab
Effluent
Total Residual Chlorine
Weekly
Grab
Effluent
Aluminum
Weekly
Grab
Effluent
Footnotes:
1. The effluent from this facility shall not exceed 50 NTU.
All samples must be collected from a typical discharge event.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Wro-GastoniaWT?
Subject: Re: NC0040070- Gastonia WTP
Date: Fri, 14 Mar 2003 11:49:45 -0500
From: Richard Bridgeman <[e-mail]>
Organization: NC DENR - Mooresville Regional Office
To: Tom Belnick <[e-mail]>
MRO concurs that permit should be modified to instate an effluent turbidity
limit.
Tom Belnick wrote:
> Hi Richard- I just got a call from Chris High (704-866-6024) who is the
• ORC for the subject WTP. He just received an NOD from MRO (signed by
> you, inspected by Sonya Williams), which said he was not collecting the
> upstream turbidity sample in the correct location (upstream at least
> 50-ft above outfall). He said the upstream location has been piped and
> inaccessable since the late 1980's, and was surprised to receive a NOD.
> If the upstream is piped, one option is to change the turbidity
> requirement to a limit of 50 on the effluent, with no instream
> sampling. We have done this at other locations. The permittee is ok
> with this, since his effluent turbidity values have been running below
> 3. What is your take on this. It sounds like the permittee must
> respond back to you by March 30.
> Mailto:[e-mail]
> N.0 DENR-DWQ/NPDES Unit
> 1617 Mail Service Center, Raleigh NC 27699-1617
> Work: [phone] ext. 543
> Fax: [phone]
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 3/14/03 11:52 AM

P1770- Gastonia WrF]
Subject: Re: [Fwd: NC0040070- Gastonia WTP]
Date: Fri, 14 Mar 2003 11:25:48 -0500
From: Rex Gleason <[e-mail]>
Organization: NC DENR - Mooresville Regional Office
To: Richard Bridgeman <[e-mail]>
No problem.
Richard Bridgeman wrote:
> I don't have a problem with this; how about yous guys?
> 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]
> ------------------------------------------------------------------------
> Subject: NC0040070- Gastonia WTP
> Date: Thu, 13 Mar 2003 10:11:38 -0500
> From: Tom Belnick <[e-mail]>
> To: Richard Bridgeman <[e-mail]>
> Hi Richard- I just got a call from Chris High (704-866-6024) who is the
> ORC for the subject WTP. He just received an NOD from MRO (signed by
> you, inspected by Sonya Williams), which said he was not collecting the
> upstream turbidity sample in the correct location (upstream at least
> 50-ft above outfall). He said the upstream location has been piped and
> inaccessable since the late 1980's, and was surprised to receive a NOD.
> If the upstream is piped, one option is to change the turbidity
> requirement to a limit of 50 on the effluent, with no instream
> sampling. We have done this at other locations. The permittee is ok
> with this, since his effluent turbidity values have been running below
> 3. What is your take on this. It sounds like the permittee must
> respond back to you by March 30.
> 14ailto:[e-mail]
> N.0 DENR-DWQ/NPDES Unit
> 1617 Mail Service Center, Raleigh NC 27699-1617
> Work: [phone] ext. 543
> Fax: [phone]
Rex Gleason - [e-mail]
%TITLE%
North Carolina Dept. of Environment & Natural Resources
Div. of Water Quality
919 N. Main St.
Mooresville, NC 28115
Ph: [phone] Fax: [phone]
I oft 3/14/03 11:51 AM