NC0077763_Permit Modification_20000912

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
September 12, 2000
Mr. Charles B. Flowers, Jr.
Water Treatment Plant Superintendent
P.O. Box 431
Belmont, North Carolina 28012
A7 '
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NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Modification
Permit NCO077763
Belmont WTP
Gaston County
Dear Mr. Flowers:
The Division has reviewed and approved your request to modify the subject permit. This permit modification
removes the requirement for pH monitoring.
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 150B 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 Charles Weaver at [phone],
extension 511.
CC. Central Files
Mooresville Regional Office, Water Quality Section
Point Source Compliance Enforcement Unit
NPDES Unit ;
Sincerely,
fl-�
T. Stevens
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer Visnr Us ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES

Permit NC0077763
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
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:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location
Flow
Quarterly
Instantaneous
Effluent
Total Suspended Residue
30.0 mg/L
45.0 mg/L
Quarterly
Grab
Effluent
Settleable Solids
0.1 mVL
0.2 mVL
Quarterly
Grab
Effluent
Turbidity)
Quarterly
Grab
Upstream & Downstream
Iron
Quarterly
Grab
Effluent
Total Residual Chlorine
Quarterly
Grab
Effluent
Aluminum
Quarterly
Grab
Effluent
Footnotes:
1. The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50 NTU. If the
instream turbidity exceeds 50 NTU due to natural background conditions, the discharge cannot cause
turbidity to increase in the receiving stream.
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.

City of Belmont
115 N. MAIN STREET I
POST OFFICE BOX 431
BELMONT, N.C. 28012
PHONE [phone]
August 23, 2000
Mr. David Goodrich
DWQ-NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Dear Sir.,
The City of Belmont Water Plant (NPDES # NC0077763) is requesting a vadance for the pH discharge
limits listed on the NPDES Permit.
In the past two (2) years, the pH of the receiving water has been between 5.5 and 5.9 on a consistent
basis. The treatment process of the City of Belmont Water Plant does nothing to alter the pH of the
water we draw into to the plant, treat and discharge. The discharge water comes from fitter backwashes
and settling basin cleaning, which only contains residual alum and chlorine. The pH of the discharge
water is consistently the same as the up -stream and downstream samples.
We are requesting that we be allowed to discharge water with a pH of no lower than 5.7. Your
consideration on this matter will be greatly appreciated, as a change in the treatment process at the
City of Belmont Water Plant will greatly impact the drinking water quality for it's citizens.
Sincerely,
Charles B. Flowers J .
Water Treatment Plant Superintendent

City of Belmont
October 20, 1998
State of North Carolina
Attn: Jeff Myra
Department of EHNR
Division of Water Quality
PO Box 29535
Raleigh, North Carolina
Subject: NPDES Permit Modification
Permit No. NC0077763
City of Belmont Water Plant
Gaston County
Dear Mr. Myra:
or Cef-1�r�
115 N. MAIN STREET
POST OFFICE BOX 431
BELMONT, N.C. 28012
PHONE [phone]
I am requesting that the wastewater effluent sampling location in this permit be relocated. A
manhole approximately 80 feet from the discharge of the settling basin should be the new sampling
location. We have discovered that the existing effluent discharge sampling location for this plant has stone
drains tied into the same line. I have traced the storm drains using dye to find the route of the water flow in
the lines.
I feel the violations with Total Suspended Solids are in part due to the existence of this problem.
The sample must be taken in a location prior to mixing with any other water flows.
We will continue to work to find and correct any other problems that may exist.
I appreciate your help in this matter. If you have any questions, please contact the Water Plant
Superintendent or, me at telephone number [phone], Chuck Flowers at [phone].
Sincerely, p
�k&
Carol B. Standafer
Superintendent of Wastewater
Cc: Mitchell Moore, City Manager
David Isenhour, Public Works Director
Chuck Flowers, Superintendent of Water