NC0040070_Renewal (Application)_20010403

h Carolina
Df Environment ,,ram n
resources g ��►J
ter Quality
ley, Governor
s, Jr., Secretary
s, Director
April 4, 2001
is — Water Treatment Plant
h Carolina 28053
Dear Mr. Cross:
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NCDENR
NORTH C.,�,Fi,Qyn.,DERARTMENT OF:
ENVIRONMENT AND NWURAL RE;5QURCES
APR 0 9 2001
'NAT; R, �TJAIITY SECTION
Subject: NPDES Permit Renewal Application
Permit NCO040070
City of Gastonia — Water Treatment Plant
Gaston County
The NPDES Unit received your permit renewal application on April 3, 2001. Thank you for submitting this
package.
The permit renewal for this facility has been assigned to Charles Weaver. This staff member will contact
you if further information is needed to complete the permit renewal. Please note that the NPDES Unit has
several vacant positions. This staff shortage has lasted for over a year and is delaying all permit renewals.
Our remaining permit writers are currently reviewing Authorizations to Construct, speculative limit requests,
major permit modifications and 201 plan updates ahead of permit renewals. This is necessary due to a
variety of factors, including mandatory deadlines in the statutes which govern our program.
If this staff shortage delays reissuance of NCO040070 the existing requirements in your permit will remain
in effect until the permit is renewed (or the Division takes other action). We appreciate your patience and
understanding while we operate with a severely depleted staff. If you have any additional questions
concerning renewal of the subject permit, please contact Charles Weaver at [phone], extension 511.
Sincerely,
Valery Stephens
Point Source Unit
cc:�,ional Office, Water Quality Section
NPDES File
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 520 (fax) 919 733-0719
VISIT US ON THE INTERNET ® httpJ/h2o.enr.state.nc.us/NPDES [e-mail]

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Utilities Department
Water Supply & Treatment
Division
City of Gastonia
P.O. Box 1748
Gastonia, North Carolina 28053
March 29, 2001
Ms. Valery Stephens
NC DENR / Water Quality / Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Ms. Stephens,
D
I APR - 3 2001
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The City of Gastonia is requesting renewal of its NPDES permit #NC0040070 for the
Gastonia Water Treatment Plant's Alum Sludge De -watering Facility. Please find
attached the permit request, permit application form, process description narrative,
and copies as requested. The current permit will expire September 30, 2001. There
have been no changes to equipment or operational procedures at this location since
the last permit renewal.
If additional information is required, please contact me at (704) 8666827.
Your assistance in this matter is greatly appreciated.
C Edward Cross, Superintendent
Water Supply & Treatment Division
pc: File
Sppermreg0l
WS&T
Page 1

NPDES PERMIT APPLICATION - SHORT FORM C
For maufacturing or commercial facilities with a discharge <1 MGD (or VVi?s
Types of wastewater discharged to surface waters only (check as applicable).
Discharge per operating day
Flow
(GALLONS PER OPERATING DAY)
Volume treated before discharging
(PERCENT
Sanitary - daily average
Cooling water, etc. - daily average
t Process water - daily average
360,000
( 100%
Maximum per operating day for
total discharge (all types)
I 3,283,200 (Max Weekly)
I 100%
S. 11 ar ry Gi z1he typos of wastewater idantificu it r� ann 8 (either treated or untreatec�j are discharged to piacas
other than surface waters, record the amount(s) discharged below:
A. Municipal sewer system apd
B. Underground well gpd
C. Septic tankgpd
D. Evaporation lagoon or pond gpd
E. Other, specify. gpd
10. Number of separate discharge points: 1
11. Name of receiving stream(s): Unnamed Tributary to Long Creek
12. Does your discharge contain or is it possible for your discharge to contain one or more of the following
substances added as a result of your operations, activities, or processes? Circle ail that apply:
aluminum ammonia beryllium cadmium chromium chlorine (residual)
copper cyanide lead mercury nickel oil and grease
phenols selenium zinc None of the above
i certify that i am famiiiar with the Infcri-nation Car7:a;n-aCi ;n.. iihZ appillocauon and z u a bast
knowledge and belief such information is true, complete, and accurate.
C Edward Cross Superintendent Water Supply & Treatment Division
Printed name of Person Signing Title
Signature of Applicant
North Carolina Gereral Statae 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement representation, or certification in any
aoclication, record, rsccrt, :Ian, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management
Commission imolemerurg :hat Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method
required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be
guilty of a misdemeanor punishable by a fine not to exceed S10,000, or by imprisonment not to exceed six months, or by both.
(13 U. S.C. Section 1 CG 1 ;n;vides a punishment by a fine of not more than S10,000 or imonsonment not more than 5 years, or both, for a similar offense.)
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Utilities Department
Water Supply & Treatment
Division
City of Gastonia
P.O. Box 1 748
Gastonia, North Carolina 28053
March 27, 2001
Alum Sludge De -watering Facility
Sludge Management Plan
The City of Gastonia Water Supply & Treatment Division's Alum Sludge De -watering
Facility, NPDES #NC0040070, receives its total in -flow from the Water Treatment
Plant. The majority of this flow consists of effluent from filter backwashes,
sedimentation basin clean -outs, ancillary leakage from pipes and sample points, and
drainage from in -line analytical equipment. Most of the solids received at the plant
are associated with the sedimentation basin clean -outs and are treated with polymer
to enhance settling.
Flow received by this plant is directed to one of two 0.6 million -gallon basins, where
the solids are allowed ample time to settle. The water is removed by decant pumps
which are operated on a float -ball system to insure that sludge is not inadvertently
pumped to the discharge. Also, operational personnel at the Water Treatment Plant
monitor the turbidity of the discharge effluent while the decant pumps are in
operation.
Currently, sludge is stored in basin #2 until it is filled. When ready to be moved, the
sludge is analyzed and shipped to the City of Gastonia's sludge farm, via tanker
truck, where it is directly land applied (permit # WQ0001793) or pumped into a
storage lagoon for mixing with residuals from the City of Gastonia's Wastewater
Treatment Plants.
This facility also has the capability to pump residuals directly to the City of
Gastonia's Long Creek Wastewater Treatment Plant, if necessary.
C Edward Cross, Superintendent
City of Gastonia - Utilities Dept.
Water Supply & Treatment Division
PC: File
SppermnarrOl WS&T Page 1