NC0082949_Permit Issuance_20031222

NPDES DOCUHENT :MCANNINO COVER SHEET
NPDES Permit:
NC0082949
Denton WTP
k. )
Document
Type:
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Compliance
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
December 22, 2003
This document is printed on reuse paper - ignore any
content on the re-srerese reside

7r NCDENR
Mr. Jeff Dennard
Town of Denton
P.O. Box 306
Denton, North Carolina 27239
Dear Mr. Dennard:
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
December 22, 2003
Subject: Issuance of NPDES Permit NC0082949
Denton WTP
Davidson County
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued'pursuant to 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).
This final permit includes the following change from the draft permit sent to you on November 5,
2003.
> The total residual chlorine limit has been corrected from 28µg/1 to 17µg/1 as is required for
discharges to zero -flow streams.
This permit includes a TRC limit that will take effect on August 1, 2005. If you wish to install
dechlorination equipment, the Division has promulgated a simplified approval process for such projects. Guidance
for approval of dechlorination projects is attached.
If any parts, measurement frequencies or sampling requirements contained in this permit 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 in the form of a written petition, conforming to Chapter 150B of the North Carolina
General Statutes, and 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.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain
other permits which may be required by the Division of Water Quality or permits required by the Division of Land
Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be
required. If you have any questions concerning this permit, please contact Dawn Jeffries at telephone number (919)
733-5083, extension 595.
cc: Central Files
Winston-Salem Regional Office/Water Quality Section
NPDES Unit
N. C. Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
Internet: h2o.enr.state.nc.us
Sincerely,
Original Signed BY
Goodrich
David A.
Alan W. Klimek, P.E.
Phone: [phone]
fax: [phone]
DENR Customer Service Center.1 800 623-7748

Permit No. NC0082949
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Town of Denton
is hereby authorized to discharge wastewater from a facility located at
Denton Water Treatment Plant
Bringle Ferry Road
Davidson County
to receiving waters designated as an unnamed tributary to Yadkin River in the Yadkin -Pee Dee River
Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III and IV hereof.
This permit shall become effective February 1, 2004.
This permit and authorization to discharge shall expire at midnight on January 31, 2009.
Signed this day December 22, 2003.
Original
;.Aav ki Goodrich
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0082949
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this
permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive
authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and
provisions included herein.
Town of Denton
is hereby authorized to:
1. Continue operation of holding and decant lagoons to treat existing filter backwash and basin wash water at
the Denton Water Treatment Plant (conventional facility, surface water intake), Bringle Ferry Road,
Davidson County, and
2. Discharge from said treatment works at the location specified on the attached map through outfall 001 into
an unnamed tributary to the Yadkin River, which is classified WS-IV - B - CA water in the Yadkin -Pee Dee
River Basin.

DiscIarge Location
Latitude: 35°35'48" Sub -Basin: 03-07-08
Longitude: 80°13'22"
Quad#: E18SW
Stream Class: WS-IV — B — CA
Receiving Stream: UNNAMED TRIBUTARY TO THE YADKIN RIVER
Permitted Flow: N/A
Facility
Location
Town of Denton
NC0082949
Denton WaterTreatrnent Plant

Permit NC0082949
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date 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
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample
Locationl
Flow
Weekly
Instantaneous
E
Total Suspended Residue
30.0 mg/1
45.0 mg/I
2/Month
Grab
E
Settleable Solids
0.1 mlli
0.2 mUl
Weekly
Grab
E
Turbidity2
Weekly
Grab
U,D
Iron
•
Weekly
Grab
E
Aluminum
Weekly
Grab
E
Total Residual Chlorine3
1741
Weekly
Grab
E
Footnotes:
1. Sample locations: E - Effluent; U - Upstream; D - Downstream
2. The discharge shall not cause the turbidity of the receiving stream to exceed 50 NTU. If the
turbidity exceeds these levels due to natural background conditions, the discharge level cannot
cause any increase in the turbidity in the receiving water.
3. Limit takes effect August 1, 2005. Until limit takes effect, the permittee shall monitor TRC (with no
effluent limit).
There shall be no discharge of floating solids or visible foam in other than trace amounts.

PUBLIC NOTICE
STATE OF NORTH
CAROLINA
ENVIRONMENTAL
MANAGEMENT
COMMISSION/NPDES
UNIT
1617 MAIL SERVICE
CENTER
RALEIGH, NC 27699-
1617
NOTIFICATION OF
INTENT TO ISSUE A
NPDES WASTEWATER
PERMIT
On the basis of thor-
ough staff review and
application of NC Gen-
eral Statute 143.21,
Public law 92-500 and
other lawful standards
and regulations, the
North Carolina Environ-
mental Management
Commission proposes
to issue a National Pol-
lutant Discharge Elimi-
nation System (NPDES)
wastewater discharge
permit to the person(s)
listed below effective
45 days from the pub-
lish date of this notice.
Written comments re-
garding the proposed
permit will be accepted
until 30 days after the
publish date of this no-
tice. All comments re-
ceived prior to that
date are considered in
the final determinations
regarding the proposed
permit. The Director of
the NC Division of Wa-
ter Quality may decide
to hold a public meet-
ing for the proposed
permit should the Divi-
sion receive a signifi-
cant degree of public
I
interest.
Copies of the draft per-
mit and other support-
ing information on file
used to determine con-
ditions present in the
draft permit are availa-
ble upon request and
payment of the costs of
reproduction. Mail com-
ments and/or requests
for information to the
NC Division of Water
Quality at the above
address or call Ms. Va-
lery Stephens at
[phone], exten-
sion 520. Please include
the NPDES permit num-
ber (attached) in any
communication. Inter-
ested persons may also
visit the Division of Wa-
ter Quality at 512 N.
Salisbury Street. Ra-
leigh, NC 27604-1148
between the hours of
8:00 a.m. and 5:00 p.m.
to review information
on file.
The Town . of Denton,
NC has applied for re-
- newal of NPDES permit
NC0082949 for its Den-
ton Water Treatment
Plant in Davidson Coun-
ty. The facility is per-
mitted to discharge
treated filter backwash
water from one outfall
into an unnamed tribu-
tary to the Yadkin River
in the Yadkin -Pee Dee
River Basin. Currently,
total residual Chlorine
is water quality limited.
This discharge may af-
fect future allocations
in this portion of the
water shed.
November7, 2003
AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA Lexington,N.C.
DAVIDSON COUNTY
Fyt
•--1)-(10_
of THE DISPATCH, a newspaper published in the city of
Lexington, County and State aforesaid, being duly sworn, says the foregoing legal of
which the attached is a true copy,
day of ; 'C t -t.
Swor e oA pti bvd before me, this
o \OTAR) ••
••• '°U B i• " • = re
. ON CC
was published in said newspaper once the (
2003.
Publication Fee $
My commission expires
<<;'.
•
Cril
)Z710(

MEMORANDUM
To:
From:
Subject:
Novembei
Lee Spencer
NC DENR / DEH / Regional Engineer
Winston-Salem Regional Office
Dawn Jeffries
NPDES Unit
2
DEC 1 5 200 a
UBLICWATER SUPPLYSECTION
Review of Draft NPDES Permit NC0082949
Denton eater Treatment Plant
Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
EC EWES')
N Crept. o; ENf
NOV 1 3 2003
'AFC 19 2003
Please indicate below your agency's position or viewpoint on the draft permit and return this form by
December 10, 2003. If you have any questions on the draft permit, please contact me at telephone number
[phone], extension 595 or via e-mail at [e-mail].
RESPONSE: (Check one)
�' Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated
effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality
standards_
Concurs with issuance of the above permit, provided the following conditions are met:
Opposes the issuance of the above permit, based on reasons stated below, or attached:
Signed /' _
1 61 7 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-161 7 - TELEPHONE [phone]/FAX [phone]
VISIT US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0082949
Facility Information
Applicant/Facility
Name:
Denton Water Treatment Plant
Applicant Address:
P.O. Box 306 Denton, NC 27239
Facility Address:
3016 Bringle Ferry Road; Denton, NC 27239
Permitted Flow
N/A
Type of Waste:
Water Treatment plant filter backwash
Facility/ Permit
Status:
Renewal
County:
Davidson
Miscellaneous
Receiving Stream:
Unnamed Tributary
to Yadkin River
Regional Office:
Wintson-Salem
Stream
Classification:
WS-III and B
USGS Topo Quad:
F 18 NE
303(d) Listed?:
NO
Permit Writer:
Dawn Jeffries
Subbasin:
03-07-08
Date:
October 24, 2003
Drainage Area (mi2):
N/a
= -,
•
.. =`
Summer 7Q10 (cfs)
N/a
Winter 7Q10 (cfs):
N/a
Average Flow (cfs):
N/a
IWC (%):
N/a
Primary SIC Code:
4941
SUMMARY
This facility maintains one outfall, 001. The facility applied for and was granted an authorization to construct for
two underdrained alum sludge lagoons in January 1996. Wastewater from filter backwash and basin wash water is
treated using holding and decant lagoons then discharged into an unnamed tributary 0.4 miles upgradient of the
confluence with Tuckertown Reservoir. The Tuckertown Reservoir eventually discharges into the Yadkin River.
The receiving stream (unnamed tributary to the Yadkin River) is classified as WS-III and B waters and is not listed
on the 303(d) list as impaired water. The May 1998 Yadkin -Pee Dee River Basinwide Water Quality management
Plan concludes that this stream supports its designated uses.
TOXICITY TESTING:
Current Requirement: None
Recommended Requirement: None recommended.
COMPLIANCE SUMMARY:
Correspondence files (2001-2003) indicate one NOV in November 02 for a pH level of 5.86 and one NOV in April
02 for untimely submittal of DMR. A Compliance Evaluation Inspection in July 02 found no problems. DMR's for
2001-2003 showed TRC levels from 0-200 µg/l, Iron levels from 0.01-1.432 mg/I, and Aluminum levels from 0-0.47
mg/I. Turbidity is limited at 50 NTU and measured readings were always well below this limit. The pH levels were
always within the 6-9 range except for the occasion already noted.
INSTREAM MONITORING:
This facility is required to monitor turbidity of the receiving stream both upstream and downstream from the outfall.
A turbidity limit has been implemented.
I?cri +n 1Vzl.:i Trealrnenl Plant I'acl Shc,2l
NI'I)IiS Renewal
Page 1

PROPOSED CHANGES:
Per division policy, TRC limit will be implemented in this renewal. Recommend limit of 17 µg/I rather than 28 µg/1
because discharge is into an unnamed tributary to the Yadkin River.
Delete pH footnote from effluent page. Memorandum dated September 30, 1992 giving interim guidance for water
treatment plants does not require pH monitoring/limits.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: November 5, 2003
Permit Scheduled to Issue: December 29, 2003
STATE CONTACT:
If you have any' questions on any of the above information or on the attached permit, please contact Dawn Jeffries at
[phone] ext. 595.
REGIONAL OFFICE COMMENT: This is a minor permit renewal therefore the regional office comments will
be solicited duriiing the public comment period.
Copies of the following are attached to provide further information on the permit development:
• Draft Permit
I:irtttolt \I: ;tt;_ ; "Fr Plant Fact Shect
.`:t'i'IN.S Rcnc\A-al
1' tl(' 2

NPDES Recommendation by:
5
Date
Regional Office Comments 9/9f7 /5
Regional Recommendation by:
Signature
Date
17--g:zS
Reviewed and accepted by:
Regional Supervisor:
<...<------
ignature
Date
)19 /0)
NPDES Unit Supervisor:
Signature
Date
\;.piir4-,.. Ron

NPDES Recommendation by:
Regional Office Comments
rz--;03
Date
Regional Recommendation by:
Signature
Reviewed andlaccepted by:
Date
Regional Supervisor:
Signature
Date
NPDES Unit Supervisor:
ri° ,fir 41t,, -
/ ; Signature
Date
/ -/ . ?/C j
chnitt't Le. ti CChr ‘kY1';)
I ).nail) \,';Acr Plant Fad Suc 'i
I'I )fiS Renov I
Page 3

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FACT SHEET FOR EXPEDITED RENEWAL
Permit Number
Afro() de&71--9
Facility Name
De4.47 (..--re
Reviewer
))/U!
Basin/Sub-basin
o o ?o8
Receiving Stream
V&A rti gf%
Is the stream impaired (listed on 303(d))?
N J
Is stream monitoring required?
ye f _ •X.- !/'air .7,
Do they need NH3 limit(s)?
vto
Do they need TRC limit(s)?
yes
Do they have whole -effluent toxicity testing?
4/0
Are there special conditions?
No
Any obvious compliance concerns?
/V o
Existing Expiration Date
/ 3i l0 4,
Proposed Expiration Date
/ 3/ %9
Miscellaneous Comments:
149 12G I i ice" , 7 (---// d /moo.,' , safc / /P d7' G4i„)1 .--ie...P ' & Ie V ,
u) / 7frr ,:s ` Os- K 4 /e /6-p 74-- 7e. 4-- i-r-, e ‘-t-cr-J1 -
pn
i
1
Circle one:
DO NOT EXPEDITE
If expedited, is this a simpler permit or a more difficult one?

NPDES PERMIT APPLICATION - SHORT FORM C
For manufacturing or commercial facilities with a discharge <1 MGD (or WTPs)
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
North Carolina NPDES Permit Number
Please print or type
1. Applicant and',facility producing discharge
A. Na II. a AE,,ra tJ W PrT`R.
B. Mailing address of applicant:
Street address P. 0 110 ( 3 /10P
NCOO k'ZRY9
City ly--tv'tn4 County 'AAV % SON)
State tJ C- Zip Gude ? .1-239
TeI i'phone Number
Fa) Number
e-mail address
C. Location of facility:
Contact Person 'p �� betnrvark.
( 314 ) fir9 —3/39
( 334 ) 851-'[094.
3de1. . rr. co,Y.
Street P• o R o X 3 is
City b Mara N County i ‘D S an/
,State N C. Zip Code 2'-234'
Telephone Number (n4 ) PS'S-3l3g
2. Standard Industrial Classification (SIC) code(s): 4R
3. Number of employees: 3
4. Principal prod,uct(s) produced: W A.rv&
Principal raw Oaterial(s) consumed:
5. Principal process(es): ?-%l4ra�:o,J
6. Amount of principal product produced (or raw material consumed)
(List specific amounts consumed and/or units of production
Product Produced or Raw Material Consumed
(AVERAGE)
Product Produced or Raw Material Consumed
(PEAK)
per Day
/, 3 NI G
/. iP Al &
per Month
34 M G
31 ,lg
per Year
(f3 Z in4
qb r IslG
7. Check here if discharge occurs all year [J , or
Circle the month(s) in which discharge occurs:
May June July August September
January February March
October
No Jgrnbe 2
r=
April
December
2003
Page 1 of 2
Version —11/2000

NPDES PERMIT APPLICATION - SHORT FORM C
For manufacturing or commercial facilities with a discharge <1 MGD (or WTPs)
Days per week discharge occurs:
NOTE: If the facility has separate discharge points (outfalls) or multiple industrial processes, include a schematic diagram
of wastewater flow at the facility.
8. 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
Process water - daily average
OtSiv►G
/oa%
Maximum per operating day for
I total discharge (all types)
, 010 AG
/ /y 2
9. If any of the types of wastewater identified in item 8 (either treated or untreated) are discharged to places
other than surface waters, record the amount(s) discharged below:
A. Municipal sewer system gpd
B. Underground well gpd
C. Septic tank
gpd
D. Evaporation lagoon or pond gpd
E. Other, specify gpd
10. Number of separate discharge points:
11. Name of receiving stream(s): u,nprivul— it 'Ln Yet d Ire �.; vet-
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 all that apply:
alumin m ammonia beryllium cadmium chromium chlorine (residual)
copper cyanide lead mercury nickel oii and grease
phenols selenium zinc None of the above
1 certify that 1 am familiar with the information contained in the application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
�01 n J e �t 1riv‘rot--
Printed name of PersonlSig;•
.,
ature of A; 6 li ='nt Date
N i Carolina Gene . I Statute 143-215.6E (i) provides that: Any person who knowingly makes any false statement representation, or certification in any application, record,
report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that 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 $10,000, or by
imprisonment not to exceed six months, or by both.
(18 U.S.C. Section 1001 provides a punishment by a fine of not more than $10,000 or imprisonment not more than 5 years, or both, for a similar offense.)
Ste{ of + (41/467"g—
itle
Page 2 of 2
Version -11/2000