NC0082949_Permit Issuance_20140314

NPDES DOCUHENT SCANNING COVER SHEET
NPDES
Permit:
NC0082949
Denton WTP
Document Type:
Permit Issuance `';
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Technical Correction
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
March 14, 2014
Thi,®c document is printed on reulae paper - ignore nay
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ATI
MENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Pat McCrory Thomas A. Reeder John E. Skvarla, III
Governor Director Secretary
March 14, 2014
Mr. Tammie B f Melton, WTP Superintendent
Town of Denton
P.O.Box306
Denton, North Carolina 27239
Subject: Issuance of NPDES Permit NC0082949
Denton Water Treatment Plant (WTP)
Davidson County
Dear Ms. Melton:
The Division of Water Resources (the Division) hereby issues the attached NPDES permit for the subject
facility. 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 October 15, 2007, or as subsequently amended.
The changes between this permit and the previous permit include the following:
• Phosphorous (TP) and Total Nitrogen (TN) monitoring will no longer be required.
• A reasonable potential analysis (RPA) of the facility's Aluminum data indicated a reasonable
potential to exceed the EPA Human Health standard of 8000 µg /L. Please note the draft permit
requires monthly monitoring of Aluminum with a Monthly Average Limit of 8.0 mg/L. The
Town will have four (4) years from the effective date of this permit to comply with the monthly
averagefor Aluminum.
• A reasonable potential analysis (RPA) of the facility's Manganese data indicated a reasonable
potential to exceed the Water System (WS-IV) stream standard of 200 µg /L. Please note the
draft permit requires monthly monitoring of Manganese with a Monthly Average Limit of 0.2
mg/L. The Town will have four (4) years from the effective date of this permit to comply with
the monthly average limit for Manganese.
• The Division has included a permit re -opener clause in the permit for Whole Effluent Toxicity
Monitoring [Section A. (4.)]. The Division includes this condition if the permittee has
demonstrated toxicity failures during the past permit cycle. We note that this facility has failed 5
of 8 quarterly tests during the past 2 years.
Proposed federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and
specify that, if a state does not establish a system to receive such submittals, then permittees must submit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] Fax: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwatemualitv.orq
An Equal opportunitylAffirmative Action Employer

Ms. Melton
March 14, 2014
Page 2 of 2
DMRs electronically to the Environmental Protection Agency (EPA). The Division anticipates that these
regulations will be adopted and is beginning implementation.
The requirement to begin reporting discharge.monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report (eDMR) internet application has been added to your NPDES
permit. [See Special Condition A (3.)] For information on eDMR, registering for eDMR and obtaining
an eDMR user account, please visit the following web page:
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr.
For information on EPA's proposed NPDES Electronic Reporting Rule, please visit the following web
site:
http://www2.epa. gov/compliance/proposed-npdes-electronic-reporting-rule.
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 submitted within thirty
(30) days after receiving this letter. Your request must take the form of a written petition conforming to
Chapter 150B of North Carolina General Statutes, and you must file it with the Office of Administrative
Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a demand is
made, this permit shall remain final and binding.
This permit is not transferable except after notifying the Division of Water Resources. The Division may
require permit modification, or revocation and re -issuance. Please note that this permit does not affect
your legal obligation to obtain other permits required by the Division of Water Resources, 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 Derek Denard at
[[e-mail]] or call [phone].
Thomas A. Reeder
Enclosure: NPDES Permit NC0082949 (Issuance Final)
hc: Central Files
NPDES Program Files
WSRO Files/ Attn: Corey Basinger
ec: ESS/Aquatic Toxicology Unit, Susan Meadows [[e-mail]]

NPDES Permit NC0082949
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
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, the
Town of Denton
is hereby authorized to discharge treated wastewater from a facility known as
Denton Water Treatment Plant (WTP)
3049 Bringle Ferry Road
Davidson County
to receiving waters designated as an unnamed tributary (UT) to the Yadkin River, within the Yadkin -Pee
Dee, in accordance with effluent limitations, monitoring requirements, and other applicable conditions
set forth in Parts I; II, III, and IV hereof.
The permit shall become effective May 1, 2014.
This permit and the authorization to discharge shall expire at midnight on January 31, 2019.
Signed this day March 14, 2014.
T • , d A. Reeder, Director
! ision of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

NPDES Permit NC0082949
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this 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 described herein.
Town of Denton
is hereby authorized to:
1. continue to operate a conventional technology water treatment plant [coagulation, flocculation,
sedimentation, and filtration] with discharge of wastewaters from media filter backwash and
sedimentation basins with a design potable flowrate of 2.25 MGD and a maximum, monthly average
wastewater discharge of 0.019 MGD, with water and wastewater treatment consisting of;
• filters
• settling basins
• two (2) decant lagoons
• dechlorination
located at the Denton -Water Treatment Plant (WTP), 3049 Bringle Ferry Road ;Denton, Davidson
County; and
2. discharge from said treatment works via Outfall 001 at a location specified on the attached map,
into an unnamed tributary (UT) to the Yadkin River [Stream Segment 12-(124.5)], currently a
Class WS-IV; B; CA waterbody within Subbasin 03-07-08 of the Yadkin -Pee Dee River Basin.
Page 2 of 7

NPDES Permit NC0082949
PART I
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 filter backwash via Outfall 001. Such discharges shall be limited and monitored' by the
Permittee as specified below:
EFFLUENT
CHARACTERISTIC
[PARAMETER CODES]
LIMITS
MONITORING REQUIREMENTS 1
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow (MGD)
50050
Weekly
Instantaneous
2
or Estimate
Effluent
Total Suspended Solids (mg/L)
C0530
30.0 mg/L
45.0 mg/L
2/month
Grab
Effluent
Turbidity (NTU)
00070
2/month
Grab
Effluent
Total Residual Chlorine 3 (µg/L)
50060
17 µg/I, 3
2/month
Grab
Effluent
pH (su)
00400
Not < 6.0 or > 9.0
standard units
2/month
Grab
Effluent
Total Aluminum 4 (mg/L)
01105
8.0 mg/L 4
Monthly
Grab
Effluent
Total Manganese 4 (mg/L)
01055
0.2 mg/L4
Monthly
Grab
Effluent
Total Fluoride 5 (mg/L)
00951
Quarterly
Grab
Effluent
Total Zinc 5 (mg/L)
01092
Quarterly
Grab
Effluent
Total Copper 5 (mg/L)
01042
Quarterly
Grab
Effluent
Total Iron 5 (mg/L)
01045
Quarterly
Grab
Effluent
Chronic WET Testing 6
TGP3B
Quarterly
Grab
Effluent
Footnotes:
1. No later January 26, 2015 begin submitting discharge monitoring reports electronically using NC DWR's
eDMR application system. See Special Condition A. (3.).
2. For instantaneous flow monitoring, the duration of the discharge must be reported in addition to the
total flow.
3. The Division shall consider TRC effluent values reported below 50 µg/L to be compliant with the
permit. However, the Permittee shall continue to record and submit all values reported by a North
Carolina -certified laboratory method (including field certified), even if these values fall below 50µg/L.
4. Compliance with this limit shall commence on May 1, 2018, approximately 48 months from the permit
effective date.
5. Samples shall be collected concurrently with WET -test samples.
6. Whole Effluent Toxicity (WET) testing - testing of Ceriodaphnia dubia shall be performed as 7-day pass/fail
test at 90% effluent concentration, during January, April, July and October [See A. (2.)].
Comments:
Samples shall be taken at the outfall but prior to mixing with the receiving waters.
There shall be no discharge of floating solids or foam in other than trace amounts.
Page 3 of 7

NPDES Permit NC0082949
A. (2.) CHRONIC TOXICITY PASS/FAIL MONITORING (QUARTERLY)
The permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent
versions.
The effluent concentration defined as treatment two in the procedure document is 90%. The testing shall
be performed as a Ceriodaphnia dubia 7-day pass/fail test. The tests will be performed during the
months of January, April, July and October. These months signify the first month of each three
month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be
obtained during representative effluent discharge and shall be performed at the NPDES permitted final
effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code
TGP3B. Additionally, DWR Form AT-1 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Environmental Sciences Section
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later
than 30 days after the end of the reporting period for which the report is made. .
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine
of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of
the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number, pipe number, county, and the month/year of the report
with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the
Environmental Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then
monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division
of Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
Tithe Permittee monitors any pollutant more frequently than required by this permit, the results of such
monitoring shall be included in the calculation & reporting of the data submitted on the DMR & all AT
Forms submitted.
Page 4 of 7

NPDES Permit NC0082949
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls,
shall constitute an invalid test and will require immediate follow-up testing to be completed no later
than the last day of the month following the month of the initial monitoring.
A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
Proposed federal, regulations require electronic submittal of all discharge monitoring reports (DMRs)
and specify that, if a state does not establish a system to receive such submittals, then permittees must
submit DMRs electronically to the Environmental Protection Agency (EPA). The Division anticipates
that these regulations will be adopted and is beginning implementation in late 2013.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.)
• Section D. (2.)
• Section D.1(6.)
• Section E. (5.)
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
1. Reporting [Supersedes Section D. (2.) and Section E. (5.) (a)1
Beginning no later than 270 days from the effective date of this permit, the permittee shall begin
reporting discharge monitoring data electronically using the NC DWR's Electronic Discharge
Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring dada and submit DMRs electronically using the internet. Until such time that the state's
eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation
(CROMERR) permittees will be required to submit all discharge monitoring data to the state
electronically using eDMR and will be required to complete the eDMR submission by printing,
signing, and submitting one signed original and a copy of the computer printed eDMR to the
following address:
NC DENR / DWR / Information Processing Unit
ATTENTION:Central Files / eDMR
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband
access, then a temporary waiver from the NPDES electronic reporting requirements may be granted
and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or
alternative forms approved by the Director. Duplicate signed copies shall be submitted to the
mailing address above.
Page 5 of 7

NPDES Permit NC0082949 .
Requests for temporary waivers from the NPDES electronic reporting requirements must be
submitted in writing to the Division for written approval at least sixty (60) days prior to the date the
facility would be required under this permit to begin using eDMR. Temporary waivers shall be valid
for twelve (12) months and shall thereupon expire. At such time, DMRs shall be submitted
electronically to the Division unless the permittee re -applies for and is granted a new temporary
waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic reporting
requirements is found on the following web page:
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr
Regardless of the submission method, the first DMR is due on the last day of the month following
the issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
2. Signatory Requirements [Supplements Section B. (11.) (b) and supersedes Section B. (11.) (d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II,
Section B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR
reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit
the following web page:
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make
the following certification [40 CFR 122.22] . NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED:
"1 certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information, including the
possibility of fines and imprisonment for knowing violations."
3. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These
records or copies shall be maintained for a period of at least 3 years from the date of the report. This period
may be extended by request of the Director at any time [40 CFR 122.41].
Page 6 of 7

NPDES Permit NC0082949
A. (4.) PERMIT RE -OPENER: WHOLE EFFLUENT TOXICITY
Whole Effluent Toxicity monitoring results indicating aquatic toxicity may result in the Division of
Water Resources re -opening this permit or requesting by letter that further action be taken. Additional
metals testing, a toxicity identification evaluation, a toxicity reduction evaluation, and/or an assessment
of discharge treatment alternatives may be requested.
Page 7 of 7

Outfall 001
30,° 35', 48"
81,° 13', 22"
(flows southeast)
UT to Yadkin River
-/ [flows southeast]
Town of Denton
Water Treatment Plant (WTP)
Receiving Stream: UT to Yadkin River Stream Segment: I2-(124.5)
Drainage Basin: Yadkin -Pee Dee Sub -Basin: 03-07-08
Stream Class: WS-IV; B; CA HUC: 03040103
State Grid/USGS Quad: E 18SW/ High Rock, NC
Facility
Location
Scale 1:24,000
NPDES Permit NC0082949
Davidson County

NPDES Permit Standard Conditions
Page 1 of 18
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/Month
Samples are collected twice per month with at least ten calendar days between sampling events. These samples shall be
representative of the wastewater discharged during the sample period.
3/Week
Samples are collected three times per week on three separate calendar days. These samples shall be representative of
the wastewater discharged during the sample period.
Act or "the Act"
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33 USC 1251, et.
seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal
coliform, the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
Bypass
The known diversion of waste streams from any portion of a treatment facility including the collection system, which is
not a designed or established or operating mode for the facility.
Calendar Day
The period from midnight of one day until midnight of the next day. However, for purposes of this permit, any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Week
The period from Sunday through the following Saturday.
Calendar Quarter
One of the following distinct periods: January through March, April through June, July through September, and
October through December.
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The
Director may designate the most appropriate method (specific number and size of aliquots necessary, the time interval
between grab samples, etc.) on a case -by -case basis. Samples may be collected manually or automatically. Composite
samples may be obtained by the following methods:
(1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour period
of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection, or
Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with
the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow
measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the
preset gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at
the treatment system, or
(3)
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NPDES Permit Standard Conditions
Page 2 of 18
(4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at a
constant time interval. Use of this method requires prior approval by the Director. This method may only be
used in situations where effluent flow rates vary less than 15 percent. The following restrictions also apply:
➢ Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters
> Influent samples shall not be collected more than once per hour.
> Permittees with wastewater treatment systems whose detention time < 24 hours shall collect effluent grab
samples at intervals of no greater than 20 minutes apart during any 24-hour period.
> Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent
grab samples at least every six hours; there must be a minimum of four samples during a 24-hour sampling
period.
Continuous flow measurement
Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be
monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance
activities on the flow device.
Daily Discharge
The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the
calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge" is calculated as
the total mass of the pollutant discharged over the day. For pollutants expressed in other units of measurement, the
"daily discharge" is calculated as the average measurement of the pollutant over the day. (40 CFR 122.2; see also
"Composite Sample," above.)
Daily Maximum
The highest "daily discharge" during the calendar month.
Daily Sampling
Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the
permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations
prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s), that
requirement will be so noted on the Effluent Limitations and Monitoring Page(s).
DWQ or "the Division"
The Division of Water Quality, Depailinent of Environment and Natural Resources.
Effluent
Wastewater discharged following all treatment processes from a water pollution control facility or other point source
whether treated or untreated.
EMC
The North Carolina Environmental Management Commission
EPA
The United States Environmental Protection Agency
Facility Closure
Cessation of all activities that require coverage under this NPDES permit. Completion of facility closure will allow this
permit to be rescinded.
Geometric Mean
The Nth root of the product of the individual values where N = the number of individual values. For purposes of
calculating the geometric mean, values of "0" (or "< [detection level]") shall be considered = 1.
Grab Sample
Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes. Grab samples can be
collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream
samples).
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NPDES Permit Standard Conditions
Page 3of18
Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA.
Instantaneous flow measurement
The flow measured during the minimum time required for the flow measuring device or method to produce a result in
that instance. To the extent practical, instantaneous flow measurements coincide with the collection of any grab
samples required for the same sampling period so that together the samples and flow are representative of the discharge
during that sampling period.
Monthly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Permit Issuing Authority
The Director of the Division of Water Quality.
Quarterly Average (concentration limit)
The arithmetic mean of all samples taken over a calendar quarter.
Severe property damage
Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or
substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a
bypass. Severe property damage excludes economic loss caused by delays in production.
Toxic Pollutant:
Any pollutant listed as toxic under Section 307(a)(1) of the CWA.
Upset
An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with
permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by
operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive
maintenance, or careless or improper operation.
Weekly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Section B. General Conditions
1. Duty to Comply
The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of
the CWA and is grounds for enforcement action; for permit termination, revocation and reissuance, or
modification; or denial of a permit renewal application [40 CFR 122.41].
a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a) of the
CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section
405(d) of the CWA within the time provided in the regulations that establish these standards or prohibitions or
standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the
requirement.
b. The CWA provides that any person who violates section[s] 301, 302, 306, 307, 308, 318 or 405 of the Act, or
any permit condition or limitation implementing any such sections in a permit issued under section 402, or any
requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act, is
subject to a civil penalty not to exceed $37,500 per day for each violation. [33 USC 1319(d) and 40 CFR
122.41(a)(2)]
c. The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or 405 of
the Act, or any condition or limitation implementing any of such sections in a permit issued under section 402
of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)(3) or
402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or
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NPDES Permit Standard Conditions
Page 4 of 18
imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a negligent
violation, a person shall be subject to criminal penalties of not more than $50,000 per day of violation, or by
imprisonment of not more than 2 years, or both. [33 USC 1319(c)(1) and 40 CFR 122.41(a)(2)]
d. Any person who knowingly violates such sections, or such conditions or limitations is subject to criminal
penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In the
case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal
penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both.
[33 USC 1319(c)(2) and 40 CFR 122.41(a)(2)]
e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit
condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, and
who knows at that time that he thereby places another person in imminent danger of death or serious bodily
injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not more than
15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment violation, a
person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than 30 years, or
both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction of violating
the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined up to
$2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)]
f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person
who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North
Carolina General Statutes § 143-215.6A]
Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302,
306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such sections
in a permit issued under section 402 of this Act Administrative penalties for Class I violations are not to
exceed $16,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed
$37,500. Penalties for Class II violations are not to exceed $16,000 per day for each day during which the
violation continues, with the maximum amount of any Class II penalty not to exceed $177,500. [33 USC
1319(g)(2) and 40 CFR 122.41(a)(3)]
2. Duty to Mitigate
The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in
violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40
CFR 122.41(d)].
3. Civil and Criminal Liability
Except as provided in permit conditions on 'Bypassing" (Part II.C.4), "Upsets" (Part II.C.5) and "Power Failures"
(Part II.C.7), nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities,
or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC
1319. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the
responsibility for effective compliance may be temporarily suspended.
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee
from any responsibilities, liabilities, or penalties to which the Permittee is or may be subject to under NCGS 143-
215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended.
5. Property Rights
The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive
privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any
infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)].
6. Onshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
g.
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7. Severability
The provisions of this permit are severable. If any provision of this permit, or the application of any provision of
this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the
remainder of this permit, shall not be affected thereby [NCGS 150B-23].
8. Duty to Provide Information
The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the
Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or
terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the Permit
Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41(h)].
9. Duty to Reapply
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the
Permittee must apply for and obtain a new permit [40 CFR 122.41(b)].
10. Expiration of Permit
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to
discharge beyond the expiration date, the Permittee shall submit such information, forms, and fees as are required
by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a
later date has been granted by the Director. (The Director shall not grant permission for applications to be
submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)] Any Permittee that has not
requested renewal at least 180 days prior to expiration, or any Permittee that does not have a permit after the
expiration and has not requested renewal at least 180 days prior to expiration, will subject the Permittee to
enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory Requirements
All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified [40
CFR 122.41(k)].
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge
of a principal business function, or any other person who performs similar policy or decision making
functions for the corporation, or (b) the manager of one or more manufacturing, production, or operating
facilities, provided, the manager is authorized to make management decisions which govern the operation
of the regulated facility including having the explicit or implicit duty of making major capital investment
recommendations, and initiating and directing other comprehensive measures to assure long term
environmental compliance with environmental laws and regulations; the manager can ensure that the
necessary systems are established or actions taken to gather complete and accurate information for permit
application requirements; and where authority to sign documents has been assigned or delegated to the
manager in accordance with corporate procedures .
(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or
ranking elected official [40 CFR 122.22].
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described in paragraph a. above or by a duly authorized representative of that person. A
person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the overall operation
of the regulated facility or activity, such as the position of plant manager, operator of a well or well field,
superintendent, a position of equivalent responsibility, or an individual or position having overall
responsibility for environmental matters for the company. (A duly authorized representative may thus be
either a named individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Authority [40 CFR 122.22]
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c. Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate because
a different individual or position has responsibility for the overall operation of the facility, a new authorization
satisfying the requirements of paragraph (b) of this section must be submitted to the Director prior to or
together with any reports, information, or applications to be signed by an authorized representative [40 CFR
122.22]
d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the following
certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED:
7 certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fines and imprisonment for knowing violations."
12. Permit Actions
This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the
Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes
or anticipated noncompliance does not stay any permit condition [40 CFR 122.41(0].
13. Permit Modification, Revocation and Reissuance, or Termination
The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit,
revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations
contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 02H .0100; and North Carolina General Statute 143.215.1 et. al.
14. Annual Administering and Compliance Monitoring Fee Requirements
The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being
billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2)
may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of Pollution Controls
1. Certified Operator
Owners of classified water pollution control systems must designate operators, certified by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), of the appropriate type and grade for the
system, and, for each classification must [T15A NCAC 08G .0201]:
a. designate one Operator In Responsible Charge (ORC) who possesses a valid certificate of the type and grade at
least equivalent to the type and grade of the system;
b. designate one or more Back-up Operator(s) in Responsible Charge (Back-up ORCs) who possesses a valid
certificate of the type of the system and no more than one grade less than the grade of the system, with the
exception of no backup operator in responsible charge is required for systems whose minimum visitation
requirements are twice per year; and
c. submit a signed completed "Water Pollution Control System Operator Designation Form" to the Commission
(or to the local health department for owners of subsurface systems) countersigned by the designated certified
operators, designating the Operator in Responsible Charge (ORC) and the Back-up Operator in Responsible
Charge (Back-up ORC):
(1) 60 calendar days prior to wastewater or residuals being introduced into a new system; or
(2) within 120 calendar days following:
> receiving notification of a change in the classification of the system requiring the designation of a new
Operator in Responsible Charge (ORC) and Back-up Operator in Responsible Charge (Back-up ORC)
of the proper type and grade; or
➢ a vacancy in the position of Operator in Responsible Charge (ORC) or Back-up Operator in
Responsible Charge (Back-up ORC).
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(3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating
at least one of the responsibilities.
The ORC of each Class I facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
> Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least weekly
> Comply with all other conditions of 15A NCAC 08G .0204.
The ORC of each Class II, III and IV facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
> Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least five days per week, excluding holidays
> Properly manage and document daily operation and maintenance of the facility
> Comply with all other conditions of 15A NCAC 08G .0204.
2. Proper Operation and Maintenance
The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control
(and related appurtenances) which are installed or used by the Permittee to achieve compliance with the conditions
of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality
assurance procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only
when necessary to achieve compliance with the conditions of the permit [40 CFR 122.41(e)].
NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance
of the facility, and all documentation required thereof, whether acting as a contract operator [subcontractor] or a
member of the Permittee's staff.
3. Need to Halt or Reduce not a Defense
It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41(c)].
4. Bypassing of Treatment Facilities
a. Bypass not exceeding limitations [40 CFR 122.41(m)(2)]
The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but
only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the
provisions of Paragraphs b. and c. of this section.
b. Notice [40 CFR 122.41(m)(3)]
(1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass, it shall submit prior notice,
if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality
and effect of the bypass.
(2) Unanticipated bypass. The Permittee shall submit notice of an unanticipated bypass as required in Part
II.E.6. (24-hour notice).
c. Prohibition of Bypass
(1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for bypass, unless:
(A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(C) The Permittee submitted notices as required under Paragraph b. of this section.
(2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for a bypass as provided in any current or future system -wide collection system
permit associated with the treatment facility.
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(3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if
the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c.
(1) of this section.
5. Upsets
a. Effect of an upset [40 CFR 122.41(n)(2)]: An upset constitutes an affirmative defense to an action brought for
noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of
this condition are met. No determination made during administrative review of claims that noncompliance was
caused by upset, and before an action for noncompliance, is final administrative action subject to judicial
review.
b. Conditions necessary for a demonstration of upset: Any Permittee who wishes to establish the affirmative
defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant
evidence that:
(1) An upset occurred and that the Permittee can identify the cause(s) of the upset;
(2) The Permittee facility was at the time being properly operated; and
(3) The Permittee submitted notice of the upset as required in Part II.E.6.(b) of this permit.
(4) The Permittee complied with any remedial measures required under Part II.B.2. of this permit.
c. Burden of proof [40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has
the burden of proof in any enforcement proceeding.
6. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters
shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant
from such materials from entering waters of the State or navigable waters of the United States except as permitted
by the Commission. The Permittee shall comply with all applicable state and Federal regulations governing the
disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge; 40 CFR
Part 258, Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T, Waste Not Discharged To
Surface Waters. The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use
or disposal practices.
7. Power Failures
The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 02H .0124) to
prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means
of alternate power sources, standby generators or retention of inadequately treated effluent.
Section D. Monitoring and Records
1. Representative Sampling
Samples collected and measurements taken, as required herein, shall be representative of the permitted discharge.
Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the
discharge for the period the sample represents. All samples shall be taken at the monitoring points specified in this
permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of
water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit
Issuing Authority [40 CFR 122.41(j)].
2. Reporting
Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a
monthly Discharge Monitoring Report (DMR) Form (MR 1, 1.1, 2, 3) or alternative forms approved by the
Director, postmarked no later than the last calendar day of the month following the completed reporting period.
The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new
facility, on the last day of the month following the commencement of discharge. Duplicate signed copies of these,
and all other reports required herein, shall be submitted to the following address:
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NC DENR / Division of Water Quality / Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
3. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The
devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent
with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a
maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge
volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained
to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device.
The Director shall approve the flow measurement device and monitoring location prior to installation.
Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part I of
this permit and based on the manufacturer's pump curves shall not be subject to this requirement.
4. Test Procedures
Laboratories used for sample analysis must be certified by the Division. Permittees should contact the Division's
Laboratory Certification Section (919 733-3908 or http://portal.ncdenr.org/web/wq/lab/cert) for information
regarding laboratory certifications.
Facilities whose personnel are conducting testing of field -certified parameters only must hold the appropriate field
parameter laboratory certifications.
Test procedures for the analysis of pollutants shall conform to the EMC regulations (published pursuant to NCGS
143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section
304(g), 33 USC 1314, of the CWA (as amended), and 40 CFR 136; or in the case of sludge use or disposal,
approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been
specified in this permit [40 CFR 122.41].
To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection
and reporting levels that are below the permit discharge requirements and all data generated must be reported down
to the minimum detection or lower reporting level of the procedure. If no approved methods are determined
capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most
sensitive (method with the lowest possible detection and reporting level) approved method must be used.
5. Penalties for Tampering
The CWA provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring
device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not
more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a
conviction of a person is for a violation committed after a first conviction of such person under this paragraph,
punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4 years,
or both [40 CFR 122.41].
6. Records Retention
Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use
and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR
503), the Permittee shall retain records of all monitoring information, including:
➢ all calibration and maintenance records
➢ all original strip chart recordings for continuous monitoring instrumentation
➢ copies of all reports required by this permit
➢ copies of all data used to complete the application for this permit
These records or copies shall be maintained for a period of at least 3 years from the date of the sample,
measurement, report or application. This period may be extended by request of the Director at any time [40 CFR
122.41].
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7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit, the Permittee shall record the
following information [40 CFR 122.41]:
a. The date, exact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements;
c. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
8. Inspection and Entry
The Permittee shall allow the Director, or an authorized representative (including an authorized contractor acting as
a representative of the Director), upon the presentation of credentials and other documents as may be required by
law, to;
a. Enter, at reasonable times, upon the Permittee's premises where a regulated facility or activity is located or
conducted, or where records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices,
or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise
authorized by the CWA, any substances or parameters at any location [40 CFR 122.41(i)].
Section E Reporting Requirements
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of
any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute
a violation of the permit.
2. Planned Changes
The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions
to the permitted facility [40 CFR 122.41(1)]. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR
122.29(b); or
b. The alteration or addition could significantly change the nature or increase the quantity of pollutants
discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to
notification requirements under 40 CFR 122.42(a)(1); or
c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices, and
such alteration, addition or change may justify the application of permit conditions that are different from or
absent in the existing permit, including notification of additional use or disposal sites not reported during the
permit application process or not reported pursuant to an approved land application plan.
3. Anticipated Noncompliance
The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other
activities that might result in noncompliance with the permit [40 CFR 122.41(1)(2)].
4. Transfers
This permit is not transferable to any person without prior written notice to and approval from the Director in
accordance with 40 CFR 122.61. The Director may condition approval in accordance with NCGS 143-215.1, in
particular NCGS 143-215.1(b)(4)b.2., and may require modification or revocation and reissuance of the permit, or
a minor modification, to identify the new permittee and incorporate such other requirements as may be necessary
under the CWA [40 CFR 122.41(1)(3), 122.61] or state statute.
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5. Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41(1)(4)].
a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II.D.2) or forms
provided by the Director for reporting results of monitoring of sludge use or disposal practices.
b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures
approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate
instrument governing the discharge, the results of such monitoring shall be included in the calculation and
reporting of the data submitted on the DMR.
6. Twenty-four Hour Reporting
a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that
potentially threatens public health or the environment. Any information shall be provided orally within 24
hours from the time the Permittee became aware of the circumstances. A written submission shall also be
provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission
shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact
dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to
continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40
CFR 122.41(1)(6)].
b. The Director may waive the written report on a case -by -case basis for reports under this section if the oral
report has been received within 24 hours.
c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at [phone], [phone] or [phone].
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6. of this permit at the
time monitoring reports are submitted. The reports shall contain the information listed in Part II.E.6. of this permit
[40 CFR 122.41(1)(7)].
8. Other Information
Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted
incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or
information [40 CFR 122.41(1)(8)].
9. Noncompliance Notification
The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division
as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first
knowledge of the occurrence of any of the following:
a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge
digester; the known passage of a slug of hazardous substance through the facility; or any other unusual
circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass without treatment of all
or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence. Also see reporting requirements for municipalities in Part IV.C.2.c. of this permit.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33
USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices
of the Division. As required by the Act, effluent data shall not be considered confidential. Knowingly making any
false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143-
215.1(b)(2) or in Section 309 of the Federal Act.
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11. Penalties for Falsification of Reports
The CWA provides that any person who knowingly makes any false statement, representation, or certification in
any record or other document submitted or required to be maintained under this permit, including monitoring
reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than
$25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41].
12. Annual Performance Reports
Permittees who own or operate facilities that collect or treat municipal or domestic waste shall provide an annual
report to the Permit Issuing Authority and to the users/customers served by the Permittee (NCGS 143-215.1C). The
report shall summarize the performance of the collection or treatment system, as well as the extent to which the
facility was compliant with applicable Federal or State laws, regulations and rules pertaining to water quality. The
report shall be provided no later than sixty days after the end of the calendar or fiscal year, depending upon which
annual period is used for evaluation.
The report shall be sent to:
NC DENR / Division of Water Quality / Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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PART III
OTHER REQUIREMENTS
Section A. Construction
a. The Permittee shall not commence construction of wastewater treatment facilities, nor add to the plant's treatment
capacity, nor change the treatment process(es) utilized at the treatment plant unless (1) the Division has issued an
Authorization to Construct (AtC) permit or (2) the Permittee is exempted from such AtC permit requirements
under Item b. of this Section.
b. In accordance with NCGS 143-215.1(a5) [SL 2011-394], no permit shall be required to enter into a contract for the
construction, installation, or alteration of any treatment work or disposal system or to construct, install, or alter any
treatment works or disposal system within the State when the system's or work's principle function is to conduct,
treat, equalize, neutralize, stabilize, recycle, or dispose of industrial waste or sewage from an industrial facility and
the discharge of the industrial waste or sewage is authorized under a permit issued for the discharge of the
industrial waste or sewage into the waters of the State. Notwithstanding the above, the permit issued for the
discharge may be modified if required by federal regulation.
c. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been
submitted by the Permittee and approved by the Division.
Section B. Groundwater Monitoring
The Permittee shall, upon written notice from the Director, conduct groundwater monitoring as may be required to
determine the compliance of this NPDES permitted facility with the current groundwater standards.
Section C. Changes in Discharges of Toxic Substances
The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42):
a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of
any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following
"notification levels";
(1) One hundred micrograms per liter (100 µg/L);
(2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per liter
(500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/L) for
antimony;
(3) Five times the maximum concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent
basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the
following "notification levels";
(1) Five hundred micrograms per liter (500 µg/L);
(2) One milligram per liter (1 mg/L) for antimony;
(3) Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Facility Closure Requirements
The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered
by this permit. The Division may require specific measures during deactivation of the system to prevent adverse
impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit continue at the
permitted facility.
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NPDES Permit Standard Conditions
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PART IV
SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES
Section A. Definitions
In addition to the definitions in Part II of this permit, the following definitions apply to municipal facilities:
Indirect Discharge or Industrial User
Any non -domestic source that discharges wastewater containing pollutants into a POTW regulated under section
307(b), (c) or (d) of the CWA. [40 CFR 403.3 (i) and (j) and 15A NCAC 02H .0903(b)(11)]
Interference
Inhibition or disruption of the POTW treatment processes; operations; or its sludge process, use, or disposal which
causes or contributes to a violation of any requirement of the Permittee's (or any satellite POTW's if different from the
Permittee) NPDES, collection system, or non -discharge permit or prevents sewage sludge use or disposal in
compliance with specified applicable State and Federal statutes, regulations, or permits. [15A NCAC 02H
.0903(b)(14)]
Pass Through
A discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or with
discharges from other sources, causes a violation, including an increase in the magnitude or duration of a violation, of
the Permittee's (or any satellite POTW's, if different from the Permittee) NPDES, collection system, or non -discharge
permit. [15A NCAC 02H .0903(b)(23)]
Publicly Owned Treatment Works (POTW)
A treatment works as defined by Section 212 of the CWA, which is owned by a State or local government organization.
This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal
sewage or industrial wastes of a liquid nature. It also includes the collection system, as defined in 15A NCAC 2T
.0402, only if it conveys wastewater to a POTW treatment plant. The term also means the local government
organization, or municipality, as defined in section 502(4) of the CWA, which has jurisdiction over indirect discharges
to and the discharges from such a treatment works. In this context, the organization may be the owner of the POTW
treatment plant or the owner of the collection system into which an indirect discharger discharges. This second type of
POTW may be referred to as a "satellite POTW organization." [15A NCAC 02H .0903(b)(26)]
"Significant Industrial User" or "SIU"
An Industrial User that discharges wastewater into a publicly owned treatment works and that [15A NCAC 02H
.0903(b)(33)]:
1. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary,
noncontact cooling and boiler blowdown wastewaters); or
2. Contributes process wastewater which makes up five percent or more of the NPDES or non -discharge permitted
flow limit or organic capacity of the POTW treatment plant. In this context, organic capacity refers to BOD, TSS
and ammonia; or
3. Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405-471; or
4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely
affecting the POTW's operation or for violating any pretreatment standard or requirement, or the POTW's effluent
limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options;
5. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraphs 1 or 2 of this definition above has no reasonable potential for adversely affecting the
POTW's operation or for violating any pretreatment standard or requirement, the POTW's effluent limitations and
conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options, and thus is not a
Significant Industrial User (SIU); or
6. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2) and thus is a
non -significant categorical Industrial User.
Section B. Publicly Owned Treatment Works (POTWs)
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Section C. Municipal Control of Pollutants from Industrial Users.
1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from Industrial Users
discharging to the POTW may be present in the Permittee's discharge. At such time as sufficient information
becomes available to establish limitations for such pollutants, this permit may be revised to specify effluent
limitations for any or all of such other pollutants in accordance with best practicable technology or water quality
standards.
2. Prohibited Discharges
a. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the
introduction of pollutants or discharges into the waste treatment system or waste collection system which
cause or contribute to Pass Through or Interference as defined in 15A NCAC 02H .0900 and 40 CFR 403. [40
CFR 403.5(a)(1)]
b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the
introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403.5(b)]:
(1) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to,
wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade
using the test methods specified in 40 CFR 261.21;
(2) Pollutants which cause corrosive structural damage to the POTW, but in no case discharges with pH lower
than 5.0, unless the works is specifically designed to accommodate such discharges;
Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in
Interference;
(4) Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a Discharge at a flow rate
and/or pollutant concentration which will cause Interference with the POTW;
Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in no
case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C (104°F)
unless the Division, upon request of the POTW, approves alternate temperature limits;
(6) Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin in amounts that will cause
Interference or Pass Through;
Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that
may cause acute worker health and safety problems; or
Any trucked or hauled pollutants, except at discharge points designated by the POTW.
All POTWs must provide adequate notice to the Director of the following [40 CFR 122.42(b)]:
1. Any new introduction of pollutants into the POTW from an indirect discharger, regardless of the means of
transport, which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants;
and
2. Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as
influent to that POTW at the time of issuance of the permit.
3. For purposes of this paragraph, adequate notice shall include information on (1) the quality and quantity of effluent
introduced into the POTW, and (2) any anticipated impact that may result from the change of the quantity or
quality of effluent to be discharged from the POTW.
(3)
(5)
(7)
(8)
c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other
unusual discharges, which have the potential to adversely impact the Permittee's Pretreatment Program and/or
the operation of the POTW.
The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office.
Any information shall be provided orally within 24 hours from the time the Permittee became aware of the
circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes
aware of the circumstances. The written submission shall contain a description of the discharge; the
investigation into possible sources; the period of the discharge, including exact dates and times; if the
discharge has not ceased, the anticipated time it is expected to continue; and steps taken or planned to reduce,
eliminate, and prevent reoccurrence of the noncompliance,
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NPDES Permit Standard Conditions
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3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the Permittee to
supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to ensure compliance by
the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding
some or all of the industries discharging to the municipal system.
4. The Permittee shall require any Industrial User (IU) discharging to the POTW to meet Federal Pretreatment
Standards developed under Section 307(b) of the Act as amended (which includes categorical standards and
specific local limits, best management practices and narrative requirements). Prior to accepting wastewater from
any Significant Industrial User (SIU), the Permittee shall either develop and submit to the Division a new
Pretreatment Program or, as necessary, a modification of an existing Pretreatment Program, for approval as
required under section D below as well as 15A NCAC 02H .0907(a) and (b). [40 CFR 122.44(j)(2)]
5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW
Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program
as required under Section 402 (b)(8) of the CWA and implementing regulations or by the requirements of the
approved State pretreatment program, as appropriate.
Section D. Pretreatment Programs
Under authority of sections 307 (b) and (c) and 402(b)(8) of the CWA and implementing regulations 40 CFR 403,
North Carolina General Statute 143-215.3(14) and implementing regulations 15A NCAC 02H .0900, and in accordance
with the approved pretreatment program, all provisions and regulations contained and referenced in the pretreatment
program submittal are an enforceable part of this permit. [40 CFR 122.44(j)(2)]
The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the CWA, 40
CFR 403, 15A NCAC 02H .0900, and the legal authorities, policies, procedures, and financial provisions contained in
its pretreatment program submission and Division approved modifications thereof. Such operation shall include but is
not limited to the implementation of the following conditions and requirements. Terms not defined in Part II or Part IV
of this permit are as defined in 15A NCAC 02H .0903 and 40 CFR 403.3.
1. Sewer Use Ordinance (SUO)
The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. [15A
NCAC 02H .0903(b)(32), .0905 and .0906(b)(1); 40 CFR 403.8(f)(1) and 403.9(b)(1) and (2)]
2. Industrial Waste Survey (IWS)
The Permittee shall implement an IWS consisting of the survey of users of the POTW collection system or
treatment plant, as required by 40 CFR 403.8(f)(2)(i-iii) and 15A NCAC 02H .0905 [also 40 CFR 122.44(j)(1)],
including identification of all Industrial Users that may have an impact on the POTW and the character and amount
of pollutants contributed to the POTW by these Industrial Users and identification of those Industrial Users
meeting the definition of SIU. Where the Permittee accepts wastewater from one or more satellite POTWs, the
IWS for the Permittee shall address all satellite POTW services areas, unless the pretreatment program in those
satellite service areas is administered by a separate Permittee with an approved Pretreatment Program. The
Permittee shall submit a summary of its IWS activities to the Division at least once every five years, and as
required by the Division. The IWS submission shall include a summary of any investigations conducted under
paragraph C.2.c. of this Part. [15A NCAC 02H .0903(b)(13), .0905 and .0906(b)(2); 40 CFR 403.8(0(2) and 403.9]
3. Monitoring Plan
The Permittee shall implement a Division -approved Monitoring Plan for the collection of facility specific data to
be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment
local limits. Effluent data from the Plan shall be reported on the DMRs (as required by Parts ILD and II.E.5.). [15A
NCAC 02H .0903(b)(16), .0906(b)(3) and .0905]
4. Headworks Analysis (HWA) and Local Limits
The Permittee shall obtain Division approval of a HWA at least once every five years, and as required by the
Division. Within 180 days of the effective date of this permit (or any subsequent permit modification) the
Permittee shall submit to the Division a written technical evaluation of the need to revise local limits (i.e., an
updated HWA or documentation of why one is not needed) [40 CFR 122.44]. The Permittee shall develop, in
accordance with 40 CFR 403.5(c) and 15A NCAC 02H .0909, specific Local Limits to implement the prohibitions
listed in 40 CFR 403.5(a) and (b) and 15A NCAC 02H .0909. Pursuant to 40 CFR 403.5, local limits are
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NPDES Permit Standard Conditions
Page 17 of 18
enforceable Pretreatment Standards as defined by 40 CFR 403.3(1). [15A NCAC 02H .0903(b)(10), .0905, and
.0906(b)(4)]
5. Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 143-215.1, the Permittee shall issue to all Significant Industrial Users, permits for
operation of pretreatment equipment and discharge to the Permittee's collection system or treatment works. These
permits shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special
conditions, and compliance schedules as necessary for the installation of treatment and control technologies to
assure that their wastewater discharge will meet all applicable pretreatment standards and requirements. The
Permittee shall maintain a current Allocation Table (AT) which summarizes the results of the HWA and the limits
from all IUPs. Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as
determined by the HWA. [15A NCAC 02H .0906(b)(6), .0909, .0916, and .0917; 40 CFR 403.5, 403.8(f)(1)(iii);
NCGS 143-215.67(a)]
6. Authorization to Construct (AtC)
The Permittee shall ensure that an Authorization to Construct permit (AtC) is issued to all applicable Industrial
Users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC, the
proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all
Industrial User Pretreatment Permit OUP) limitations. [15A NCAC 02H .0906(b)(7) and .0905; NCGS 143-
215.1(a)(8)]
7. POTW Inspection & Monitoring of their IUs
The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division
approved pretreatment program in order to determine, independent of information supplied by Industrial Users,
compliance with applicable pretreatment standards. [15A NCAC 02H .0908(e); 40 CFR 403.8(f)(2)(v)] The
Permittee must:
a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year;
b. Sample all Significant Industrial Users (SIUs) at least once per calendar year for all SIU permit -limited
parameters including flow except as allowed under 15A NCAC .0908(e); and
c. At least once per year, document an evaluation of any non -significant categorical Industrial User for
compliance with the requirements in 40 CFR 403.3(v)(2), and either continue or revoke the designation as non-
significant.
8. IU Self Monitoring and Reporting
The Permittee shall require all Industrial Users to comply with the applicable monitoring and reporting
requirements outlined in the Division -approved pretreatment program, the industry's pretreatment permit, or in 15A
NCAC 02H .0908. [15A NCAC 02H .0906(b)(5) and .0905; 40 CFR 403.8(f)(1)(v) and (2)(iii); 40 CFR
122.44(j)(2) and 40 CFR 403.12]
9. Enforcement Response Plan (ERP)
The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards
promulgated pursuant to section 307(b) and (c) of the CWA (40 CFR 405 et. seq.), prohibitive discharge standards
as set forth in 40 CFR 403.5 and 15A NCAC 02H .0909, specific local limitations, and other pretreatment
requirements. All remedies, enforcement actions and other, shall be consistent with the Enforcement Response
Plan (ERP) approved by the Division. [15A NCAC 02H .0903(b)(7), .0906(b)(8) and .0905; 40 CFR 403.8(0(5)]
10. Pretreatment Annual Reports (PAR)
The Permittee shall report to the Division in accordance with 15A NCAC 02H .0908. In lieu of submitting annual
reports, Modified Pretreatment Programs developed under 15A NCAC 02H .0904 (b) may be required to submit a
partial annual report or to meet with Division personnel periodically to discuss enforcement of pretreatment
requirements and other pretreatment implementation issues.
For all other active pretreatment programs, the Permittee shall submit two copies of a Pretreatment Annual Report
(PAR) describing its pretreatment activities over the previous calendar year to the Division at the following
address:
Version 11/09/2011

NPDES Permit Standard Conditions
Page 18 of 18
NC DENR / Division of Water Quality / Surface Water Protection Section
Pretreatment, Emergency Response, and Collection Systems (PERCS) Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
These reports shall be submitted by March 1 of each year and shall contain the following:
a. Narrative
A narrative summary detailing actions taken, or proposed, by the Permittee to correct significant non-
compliance and to ensure compliance with pretreatment requirements;
b. Pretreatment Program Summary (PPS)
A pretreatment program summary (PPS) on forms or in a format provided by the Division;
c. Significant Non -Compliance Report (SNCR)
A list of Industrial Users (IUs) in significant noncompliance (SNC) with pretreatment requirements, and the
nature of the violations on forms or in a format provided by the Division;
d. Industrial Data Summary Forms (IDSF)
Monitoring data from samples collected by both the POTW and the Significant Industrial Users (SIUs). These
analytical results must be reported on Industrial Data Summary Forms (IDSF) or on other forms or in a format
provided by the Division;
e. Other Information
Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of
Ms in SNC, a summary of data or other information related to significant noncompliance determinations for
Ms that are not considered SIUs, and any other information, upon request, which in the opinion of the Director
is needed to determine compliance with the pretreatment implementation requirements of this permit;
11. Public Notice
The Permittee shall publish annually a list of Industrial Users (Ms) that were in significant noncompliance (SNC)
as defined in the Permittee's Division -approved Sewer Use Ordinance with applicable pretreatment requirements
and standards during the previous twelve month period. This list shall be published within four months of the
applicable twelve-month period. [15A NCAC 02H .0903(b)(34), .0908(b)(5) and .0905 and 40 CFR
403.8(f)(2)(viii)]
12. Record Keeping
The Permittee shall retain for a minimum of three years records of monitoring activities and results, along with
support information including general records, water quality records, and records of industrial impact on the
POTW and shall retain all other Pretreatment Program records as required by 15A NCAC 02H .0908(f). [15A
NCAC 02H .0908(f); 40 CFR 403.12(o)]
13. Pretreatment Program Resources
The Permittee shall maintain adequate funding and qualified personnel to accomplish the objectives of its approved
pretreatment program. and retain a written description of those current levels of inspection. [15A NCAC 02H
.0906(b)(9) and (10) and .0905; 40 CFR 403.8(0(3), 403.9(b)(3)]
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW
monitoring of their Significant Industrial Users (SMs), and Monitoring Plan modifications, shall be considered a
permit modification and shall be governed by 40 CFR 403.18, 15 NCAC 02H .0114 and 15A NCAC 02H .0907.
Version 11/09/2011

42008346 J000465811
AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA LEXINGTON, NC February 6, 2014
DAVIDSON COUNTY
I, Lynn Bowers 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,
WAS PUBLISHED IN SAID NEWSPAPER ONCE, BEGINNING THE 6th DAY OF February, 2014.
PUBLICATION FEE: $ 101.43
CALi( . „l � _Q .! 7) (SEAL)
SWO/ N TO AND SUBSCRIBED EFORE ME, THIS
Vifirn_.) . [g(
//f•-.
U- DAY OF
MY COMMISSION EXPIRES' / V 01(p
Ad Copy:
Public Notice
North Carolina
Environmental Management
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a
NPDES Wastewater Permit
The North Carolina
Environmental Management
Commission proposes to issue
a NPDES wastewater
discharge permit to the
person(s) listed below. Written
comments regarding the
proposed permit will be
accepted until 30 days after the
publish date of this notice. The
Director of the NC Division of
Water Resources (DWR) may
hold a public hearing should
there be a significant degree of
public interest. Please mail
comments and/or information
requests to DWR at the above
address. Interested persons
may visit the DWR at 512 N.
Salisbury Street, Raleigh, NC
to review information on file.
Additional information on
NPDES permits and this notice
may be found on our website:
http://portal.ncdenr.orq/web/wq/
swp/ps/nodes/calendar or by
calling [phone]. Hilltop
Living Center requested
renewal of permit NC0059536
for the Hilltop Living Center
WWTP; Davidson County; this
permitted discharge is treated
wastewater to an unnamed
tributary to the Yadkin River;
Yadkin -Pee Dee River Basin.
Town of Denton, Davidson
County, has applied to renew
NPDES permit for the Town of
Denton Water Treatment Plant
[NC0082949] discharging filter -
backwash wastewater to
Yadkin River, Yadkin -Pee Dee
River Basin.
February 6, 2014
\\°SoNLIA4y/,„,
F
Notary Public
Davidson County
My Commission Expires_
m-------------tit
O O"`�`.'
ac/ i

Denard, Derek
From: Moore, Cindy
Sent: Tuesday, March 11, 2014 11:33 AM
To: Meadows, Susan; Denard, Derek
Cc: Basinger, Corey; Carter, Jenifer; Reid, Dianne; Reid, Steve; Hudson, Eric
Subject: RE: Draft for Town of Denton NC0082949
We have discussed this permit. Everything looks fine . This is a water treatment plant which is currently being asked to
monitor only.
Thanks
From: Meadows, Susan
Sent: Tuesday, March 11, 2014 11:07 AM
To: Moore, Cindy
Subject: FW: Draft fbr Town of Denton NC0082949
From: Denard, Derek
Sent: Monday, March 10, 2014 3:33 PM
To: Basinger, Corey; Carter, Jenifer; Reid, Steve; Meadows, Susan; Hudson, Eric
Cc: dentonwaterplantC&windstream.net
Subject: Draft for Town of Denton NC0082949
Please find a copy of the Draft for the Town of Denton NPDES number NC0082949 that will go to final draft on Friday,
March 14, 2014. I have made a couple of changes that should be noted from my previous drafts. Total Nitrogen and
Total Phosphorus has been removed due to the facility being under 0.05 MGD and not discharging to nutrient sensitive
waters (NSW). Fluoride was placed back into the permit because the facility backwashes with fluoridated water. Please
let me know if you have any comments.
Thanks
Derek C Denard
E tonmenta! SpeOafist
NCDENR Dirifon of, Water Resources
Water Qua&tyP agSection
Wastewater Srand,l
Compgance & Emoted Permitting Unit
[phone]
derefcdertard@3nadE#htgov
IG17 Sanrica Can*, RaSith, Nc276ss-uv
hstpc//portatnalanr /iarglrap/ps/npdas
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
1

Denard, Derek
From: Carter, Jenifer
Sent: Tuesday, February 18, 2014 10:48 AM
To: Denard, Derek; Basinger, Corey; [e-mail]
Cc: Reid, Steve
Subject: RE: Denton WTP NC0082949 draft permit renewal
It looks good to me Derek. Thank you!
n
Before printing this email, please consider your budget and the environment.
If you must print, please print only what you need and save ink with the free Eco-Font.
NC DENR Winston-Salem Regional Office
Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]'
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Denard, Derek
Sent: Monday, February 17, 2014 4:47 PM
To: Carter, Jenifer; Basinger, Corey; dentonwaterplantOwindstream.net
Cc: Reid, Steve
Subject: RE: Denton WTP NC0082949 draft permit renewal
Sorry, I meant to attach the Draft permit.
I have made a few changes since my draft. Total Phosphorus (TP) and Total Nitrogen (TN) will be dropped because the
facility discharges less than 50,000 gpd and the stream is not classified NSW (nutrient sensitive waters). Please let me
know if you have an comments in regard to these changes.
Thanks,
Derek
From: Carter, Jenife(,
Sent: Monday, February 17, 2014 3:51 PM
To: Denard, Derek; Basinger, Corey; dentonwaterplant(awindstream.net
Cc: Reid, Steve
Subject: RE: Denton WTP NC0082949 draft permit renewal
Thanks Derek,
Did you mean to attach a copy of the DRAFT permit? I think you attached the fact sheet twice instead by mistake (?).
That being said, I think the fact sheet covers all of the changes that were made. I see no problems with the changes
noted in the fact sheet with RPA. Does the DRAFT include different monitoring requirements for before after the
changes for which the A to C was issued?
1

Jenifer Carter
Before printing this email, please consider your budget and the environment.
If you must print, please print only what you need and save ink with the free Eco-Font.
NC DENR Winston-Salem Regional Office
Division of Water Resources
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Denard, Derek
Sent: Friday, January 24, 2014 4:30 PM
To: Basinger, Corey; dentonwaterplantOwindstream.net
Cc: Carter, Jenifer; Reid, Steve
Subject: Denton WTP NC0082949 draft permit renewal
Please find attachments for the Town of Denton WTP NC0082949 draft permit and fact sheet. Please provide your
comments, if any, to me via email [[e-mail]] or write to my attention care of DENR / DWR / NPDES
Program no later than March 7, 2014.
Thanks,
Derek
Derek C Denard
£nvironmer Spat
MCDENR Dirision of Water Resources
Water Quarty Permitting Section
Wastewater Brandt
Comprence &gUnit
919)807-6307
[e-mail]
tsi7 MO Strike Canter. Rzlaigh, NC ZU9-1517
http://portaithcdenr.org/tothAvq/swpotrAhspdas
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
2

(144\ 1-toor
TOWN OF DENTON
February 24, 2014
Compliance & Expedited Permitting Unit
1617 Mail Service Center
Raleigh, N.C. 27699-1617
Attn: Mr. Derick C Denard
Mr. Denard,
I have reviewed the draft proposal on the NPDES permit for the Town of Denton water treatment
plant.
I have some concerns with the permit and conditions there in...
We are to start the upgrade on March 10th, 2014, concerns are specifically on the Aluminum,
Manganese and Chronic wet testing (tox). These may be affected during the upgrade, as we will only
have one lagoon to use during some of upgrade. Granted we will make every effort to comply with the
permit, I just don't see that we will be able to meet each and every one during this time. The schedule
for the upgrade) will be 12-14 months, and it will be a difficult time with all operations.
With that being said, I would like to ask that enforcement of these parameters be considered during
the upgrade period with some time to utilize the upgrades prior to enforcement actions being taken.
I would like to take time to thank you for any and all considerations that could be given to us at this
time.
Respectfully,
Tammie B. Melton
Superintendent
201 W. Salisbury Street
P.O. Box 306
Denton, NC 27239
Phone: [phone]
Fax: [phone]

ACMEEM
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Pat McCrory Thomas A. Reeder John Skvarla III
Governor Director Secretary
MEMORANDUM
To:
February 17, 2014
Eric Hudson (DWR/PWSS)
r9 gig 1. - Regional Engineer
Winston-Salem Regional Office
From:
Derek C. Denard
DWQ / NPDES Program
919-807-6307; Fax [phone]; [e-mail]
Subject: Review of Discharge to a UT to the Yadin River (WS-IV; B; CA), Yadkin -Pee Dee River Basin
Renewal of Individual NPDES Permit for Existing conventional technology Water Treatment
Plant
for:
NPDES NC0082949
Town of Denton WTP
located at 3049 Bringle Ferry Road
Davidson County
Please provide your comments, if possible, by March 7, 2014 [email OK]
RESPONSE:
X I have reviewed the draft permit and determined that the proposed discharge is not located
sufficiently close to any existing or known proposed public water supply intake so as to create an
adverse effect on water quality. The DWR concurs with the issuance of this permit provided the
Permittee properly operates and maintains the facility; the Permittee meets the stated effluent limits
prior to discharge; and the discharge does not contravene the designated water quality standards.
I concur with issuance of the above permit provided the following conditions are met:
I oppose the issuance of the above permit based on reasons stated below, or attached:
Signed:[�tJ�-��r7�
cc: file
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh. North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1.877-623.6748
Internet: www.ncwaterquality.org
An Equal Opportunity i Attirmative Action Employer
Date: 2 /2 (// Z t'' � f

DENR / DWR / NPDES
EXPEDITED FACT SHEET - NPDES PERMIT DEVELOPMENT
NPDES Permit NC0082949
Derek Denard, Compliance & Expedited Permitting Unit / 919-807-6307
11Mar2014
Facility Information
Applicant/Fility, Name
Town of Denton Water Treatment Plant (WTP)
Applicant Address
P.O. Box 306, Denton, NC 27239
Facility Addi;ess
3049 Bringle Ferry Rd, Denton, NC 27239
Permitted ;Flaw
(MGD)
Not limited
Type of Was-e
Water Plants and Water Conditioning Discharge — dechlorinated
filter -backwash - Conventional WTP System
Facility Classl
Physical Chemical 1
County
Yadkin
Permit Status
Renewal
Regional
Office
WSRO
Stream Characteristics
Receiving Steam
UT to Yadkin River
Stream Classification
WS-IV; B; CA
Stream Segment
[12-(124.5)]
Drainage basin
Yadkin -Pee Dee
Summer 7Q10:;(cfs)
0.0
Subbasiri
03-07-08
Winter 7Q10
(cfs)
0.0
Use: Support
30Q2 (cfs)
0.0
303(d) Listed
Stream Segment is
listed
Average Flo
(cfs)
0.0
State Grid
E18SW
IWC (% o)
i
100%
USGS Topo Quad
High Rock, NC
Facility Summary
This facility is Conventional water treatment plant with discharge of wastewaters from media filter
backwash and sedimentation basins with a design potable flowrate of 2.25 MGD and a maximum monthly
average wastewater discharge of 0.0186 MGD. Because the waste flow is <50k gpd, continuous flow
monitoring is not required. Phosphorous (TP) and Total Nitrogen (TN) is not required because flow is <50k
gpd and not discharging to Nutrient Sensitive Waters (NSW) . The facility consists of the following water
and wastewater treatment units:
• filters,
• settling basins,
• two (2)' 100,000 gallon decant lagoons and
• dechlorination.
In July 2011 DWR issued an Authorization to Construct (A to Z No. 082949A01). A start date in March
2014 is anticipated but construct is not under contract. This authorization was awarded for the following
modifications: '1
• Installation of a new 200,000 gallon backwash lagoon [one (1) existing 100,000 gallon decant
lagoon will remain];
• (one (1) existing decant lagoons will remain);
• a new sludge pump station with two (2) 225 gpm submersible pumps;
• two (2) 1,200 fl sludge drying beds; and
• an effluent flow meter.
Fact Sheet
Renewal 2013 -- NPDES Permit NC0082949
Page l

Monthly average FLOW (MGD) — Last 36 months Nov2010-Oct2013:
[Ave 0.00707 MGD; Maximum, Monthly average flow = 0.0186 MGD]
Instantaneous measurements or estimates are allowed if the permitted flow is less than 50,000 gpd.
Lagoon Capacity: Current: 200,000 gallons After Upgrade: 300,000 gallons
Detention Time: Current : 10.75 Days After Upgrade: 16.13 Days
Toxicity — With an IWC >0.25%, this permit requires Chronic Whole Effluent Toxicity (WET) testing
using Ceriodaphnia dubia to be performed as a 7-day pass/fail test at 90% effluent concentration, during
January, April, July and October [TGP3B]. Five (5) out of the eight (8) toxicity tests over the past two
years were reported as "fail". Therefore, DWR had inserted a toxicity re -opener clause [Section A. (4.)].
Renewal Summary — This permit reflects discharge at Outfall 001. DWR updated the facility description
and Map; added parameter codes to Section A. (1.); added Electronic Reporting - Discharge Monitoring
Reports page. Added Permit Re -Opener for Whole Effluent Toxicity Monitoring [Section A. (4.)]
because of TOX test failure within two years; and removed Total Phosphorous (TP) and Total Nitrogen
(TN).
Stream — Discharge from WTP for Outfall 001 is into an unnamed tributary (UT) to the Yadkin River
[Stream Segment 12-(124.5)]. The segment from High Rock Dam to mouth of Cabin Creek [12-(124.5)a]
is currently listed as impaired in the 2012 North Carolina 303(d) List -Category 5 for Aquatic Life for the
parameters Chlorophyll a and Low Dissolved Oxygen.
RPA — A Reasonable Potential Analysis (RPA) was conducted on Copper, Fluoride, Zinc, Aluminum, Iron
and Manganese effluent parameters data because Discharge Monitoring Reports (DMRs) reported
concentration above method -detection levels (MDLs) for the past four and one half (4 1/2) years (May 2009-
Oct 2013). (The new 2014 Freshwater RPA - 95% Probability/95% Confidence was conducted prior to the
Draft permit with no changes to the following parameters.) [See attached RPA summary sheets.]
• Copper showed reasonable potential to violate state water quality standards (WQS). Since Copper
has an action level standard, quarterly monitoring will be maintained in conjunction with toxicity
testing.
• Fluoride did not show reasonable potential to violate state WQS; however, since the predicted
maximum effluent concentration was less than 50% of the allowable concentration no monitoring
will be required. However, since fluoridated backwash water is being used, Fluoride will remain in
the permit.
• Zinc showed reasonable potential to violate state water quality standards (WQS). Since Zinc has an
action level standard, quarterly monitoring will be maintained in conjunction with toxicity testing.
• Aluminum effluent data suggest reasonable potential to exceed the EPA Human Health standard of
8000 gg /L. Renewal requires monthly monitoring of Aluminum with a Monthly Average Limit of
8.0 mg/L. This limit will become active four (4) years from the effective date. The Town was
given four years because of anticipated upgrade to the plant. Note: Looking at sources for the high
concentration of Aluminum in the effluent, there were no violations for TSS noted in the data. The
greatest value reported for TSS was 21 mg/L in August 2008. One reported value of 12 mg/L of
Aluminum exceeds the Human Health standard on 05/19/11. The reported concentration of
Aluminum may need to be verified with the laboratory.
• Iron showed reasonable potential to exceed state water quality standards (WQS). Since Iron has an
action level standard, quarterly monitoring will be maintained in conjunction with toxicity testing.
Fact Sheet
Renewal -- NPDES NC0082949
Page 2

• Manganese effluent data suggest reasonable potential to exceed its standard of 200 µg /L. Renewal
will require monthly monitoring of Manganese with a Monthly Average Limit of 0.2 mg/L. This
limit will become active four (4) years from the effective date. The Town was given four years
because of anticipated upgrade to the plant.
Decant basins may not provide enough settling detention time resulting in higher effluent concentrations for
Aluminum and Manganese. The facility will undergo improvements including a new 200,000 gallon
backwash lagoon. This new lagoon may improve the concentrations of Aluminum and Manganese in the
long run.
Fact Sheet
Renewal -- NPDES NC0082949
Page 3

Town of Denton
NC0082949
2014 Freshwater RPA - 95% Probability/95% Confidence
MAXIMUM DATA POINTS = 58
Qw (MGD) = 0.02
I Q10S (cfs) = 0.00
7Q1OS (cfs) = 0.00
7Q1OW (cfs) = 0.00
30Q2 (cfs) = 0.00
Avg. Stream Flow, QA (cfs) = 0.00
Receiving Stream: UT to Yadkin River
WWTP/WTP Class: PC-1
IWC @ IQIOS = 100.00%
IWC @ 7Q1OS = 100.00%
IWC@7QIOW= 100.00%
IWC @ 30Q2 = 100.00%
IWC @QA= 100.00%
Stream Class: WS-IV; B; CA
Outfall 001
Qw = 0.0186 MGD
PARAMETER
TYPE
(1)
STANDARDS & CRITERIA (2)
POL
UNITS
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS /
Chronic
Applied
Standard
Vx FAV /
Acute
n
Max Pred
Allowable Cw
Det. Cw
Copper(AL)
NC
7
FW
7.3
ug/L.
15
I
l.' n
Acute: 7.;
_ _ _-_-_- _ _
Chronic: 7.0
I value(s) > Allowable Cw
_ _ _ ____
RP for AL(Cu.Zn,Ag,Fe.CI) - apply Quarterly
Monitoring in conjunction with TOX Test
Fluoride
NC
1800
FW
ug/L
15
x
100.11
Acute: NO WQS
_ _____________
Chronic: 1,800.0
No value > Allowable Cw
___ __ ______
No RP Predicted Max < 50% of Allowable Cw - No
Monitoring required
Zinc(AL)
NC
50
FW
67
ug/L
15
1
69.6
Acute: 67.0
_ __-_-_ ___-______________-_
Chronic: 50.0
No value > Allowable Cw
RP for AL(Cu.Zn.Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test
Aluminum
NC
8000
1-111
1i_/I_
45
15
15,000.0
Acute: NO WQS
_ _ _ _______ _ ___
Chronic: 8000.0
1 value(s) > Allowable Cw
_ _ _ _ _ _ _ _ _ _ _ _ _
RP for non -AL - apply Monthly Monitoring with Limit
Iron
NC
1000
FW
pg/L
45
45
2,343.E
Acute: NO WQS
----- ---- ------- __
Chronic: 1000.0
2 value(s) > Allowable Cw
---- __--- ---- --- ---- __
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test
Manganese
NC
200
WS
ug/L.
15
15
9,873.6
Acute: NO WQS
___ _ _-_-_ _ ___-_-_-_-_-_-_
Chronic: 200.0
15 value(s) > Allowable Cw
_-_-_-_._____-_
RP for non -AL - apply Monthly Monitoring with Limit
Page 1011
Denton 9595 FRESHWATER RPA20142.xlsx, rpa
2/10/2014

Town of Denton
NC0082949
REASONABLE POTENTIAL ANALYSIS
Qw (MGD) = 0.02
IQIOS (cfs) = 0.00
7Q1OS (cfs) = 0.00
7Q1OW (cfs) = 0.00
30Q2 (cfs) = 0.00
Avg. Stream Flow, QA (cfs) = 0.00
Receiving Stream: UT to Yadkin River
WWTP/WTP Class: PC-1
IWC @ IQIOS = 100.00%
IWC @ 7Q1OS = 100.00%
IWC @ 7Q1OW = 100.00%
IWC @ 30Q2 = 100.00%
IWC @ QA = 100.00%
Stream Class: WS-IV; B; CA
Outfall 001 .
Qw = 0.0186 MGD
PARAMETER
TYPE
(1)
STANDARDS & CRITERIA (2)
-J
d
m
2Max
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC WQS /
Chronic
Applied
Standard
1/2 FAV /
Acute
n
Pred
# Det. Cw Allowable Cw
Copper (AL)
NC
7
FW
7.3
ug/L
15
4
29
Acute: 7.3
—__ _ _----- _----_—
Chronic: 7.0
1 value(s) > Allowable Cw
--_ ----- _--------------
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test
Fluoride
NC
1800
FW
ug/L
15
8
510.0
Acute: NO WQS
__ _ __---__ _ __---_—_-----------------------
Chronic: 1,800.0
No value > Allowable Cw
No RP, Predicted Max < 50% of Allowable Cw - No
Monitoring required
Zinc(AL)
NC
50
FW
67
ug/L
15
4
159.8
Acute: 67.0
—__ _ _-----_ __-------------------------------
Chronic: 50.0
No value > Allowable Cw
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test
Aluminum
NC
8000
HH
mg/L
45
15
74,520
Acute: NO WQS
—__ _ _---- _ _-_----------------------------
Chronic: 8000.0
1 value(s) > Allowable Cw
RP for non -AL - apply Monthly Monitoring with Limit
Iron
NC
1000
FW
pg/L
45
45
4,144.7
Acute: NO WQS
— _ _----__ _ _------------------------------
Chronic: 1000.0
2 value(s) > Allowable Cw
RP for AL(Cu,Zn,Ag,Fe,CI) - apply Quarterly
Monitoring in conjunction with TOX Test
Manganese
NC
200
WS
µg/L
15
15
14,737.8
Acute: NO WQS
— _ _----__ _ -------------------------------
Chronic: 200.0
15 value(s) > Allowable Cw
RP for non -AL - apply Monthly Monitoring with Limit
Page 1 of 1
NC0082949 Denton WTP 2012 RPA-FreshwaterREV.xlsm, rpa
1/16/2014

2012 North Carolina 3O3(d) List -Category 5
Yadkin -Pee Dee River Basin
> AU Number
Nz r ie
10-digit Watershed 0304010304
Description
Length or Area
Uwharrie River Headwaters
Units Classification Category
Category Rating
Use
Reason for Rating
Parameter
Year
> 13-2-3-3-(0.3)ut8
UT to Back Creek
From source to a Back Creek
3.1 FW Miles 5
5 Impaired Aquatic Life
Poor Bioclassification Ecological/biological Integrity Benthos
2012
> 13-2-3-3-(0.7)
Back Creek (Back Creek From a point 1.0 mile downstream of Randolph County SR 1504 to dam at 228.3
Lake) Back Creek Lake (City of Asheboro water supply intake)
FW Acres
WS-II;HQW,CA 5
5 Impaired Aquatic Life
Standard Violation Chlorophyll a
2010
> 13-2-3-3-2-2-(2)
Unnamed Tributary to
Cedar Fork Creek (Lake
Bunch)
From a point 1.1 miles upstream of mouth to Cedar Fork Creek (City of 0.6
Asheboro water supply intake)
FW Miles
WS-II;HQW,CA 5
5 Impaired Aquatic Life Standard Violation Chlorophyll a
2012
Yadkin -Pee Dee River Basin
10-digit Watershed 0304010306
12-digit Subwatershed
030401030605
Yadkin River
Beaverdam Creek -Yadkin Rive
> 12-(124.5)d
YADKIN RIVER
(including Tuckertown
Lake, Badin Lake)
Badin Lake
6,847.0 FW Acres WS-IV,B;CA 5
5 Impaired Fish Consumption Standard Violation PCB
2010
12-digit Subwatershed
030401030602
Cabin Creek
> 12-(124.5)b
YADKIN RIVER
(including upper
portion of Tucktertown
Lake)
From High Rock Dam to mouth of Cabin Creek
3.5 FW Miles WS-IV,B;CA
5 Impaired Aquatic Life Standard Violation Chlorophyll a
5 Impaired Aquatic Life Standard Violation Low Dissolved Oxygen
2012
2012
5
12-digit Subwatershed
030401030601
Lick Creek
Friday, August 24, 2012
Approved by EPA August 10, 2012
Page 162 of 170

IWC Calculations
Facility: Town of Denton WTP
NC0082949
Prepared By: Derek Denard
Enter Design Flow (MGD):
Enter s7Q10 (cfs):
Enter w7Q10 (cfs):
0.0186
0
0
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/I)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
Upstream Bkgd (ug/l)
IWC (%)
Allowable Conc. (ug/I)
Fecal Coliform
Monthly Average Limit:
(If DF >331; Monitor)
(If DF<331 Limit)
Dilution Factor (DF)
0
0.0186
0.02883
17.0
0
100.00
17
Ammonia (Summer)
Monthly. Average Limit (mg NH3-N/I)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/I)
w7Q10 (CFS)
200/100m1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
1.00 Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals); capped at 35 mg/I
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis); capped at 35 mg/I
4. BAT for Minor Domestics: 2 mg/I (summer) and 4 mg/I (winter)
5. BAT for Major Municipals: 1 mg/I (year-round)
0
0.0186
0.02883
1.0
0.22
100.00
1.0
0
0.0186
0.02883
1.8
0.22
100.00
1.8
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)
NPDES Server/Current Versions/WLA; TB 1/16/2009

Freshwater RPA
1'7J REQUIRED DATA ENTRY
Table 1. Project Information
❑ CHECK If HQW or ORW only
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Ow (MGD)
Receiving Stream
Stream Class
7010s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1 Q10s (cfs)
Data Source(s)
❑ CHECK for MODEL
•
Town of Denton
PC-1
NC0082949
001
0.019
UT to Yadkin River
WS-IV; B; CA
0.00
0.00
0.00
0.00
0.00
Follow directions for data entry. In some cases a
comment menu list the available choices or a
dropdown menu will provide a list you may select
from. Error message occur if data entry does not
meet input criteria.
Table 2. Parameters of Concern
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Par18
Par19
Par20
Par21
Par22
Name
Type Chronic Modifier Acute
PQL Units
w
•
•
•
❑
■
Copper (AL)
NC
7
FW
7.3
uglL
■
111
Fluoride
NC
1.800
FW
ug/L
■
•
.
•
•
•
Zinc (AL)
NC
50
FW
67
ug/L
■
Aluminum
NC
8000
HH
µg/L
■
Iron
NC
1000
FW
pg/L
■
Manganese
NC
200
WS
pg/L
■
El
NC0082949 Denton WTP 2012 RPA-FreshwaterREV.xlsm, input
1/16/2014

REASONABLE POTENTIAL ANALYSIS
9
Copper (AL)
Date Data BDL=1/2DL Results
1 2010 < 2 1 Std Dev.
2 2010 < 2 1 Mean
3 2010 < 2 1 C.V.
4 2010 < 2 1 n
5 2011 < 2 1
6 2011 Mull Factor =
7 2011 3 3 Max. Value
8 2011 < 2 1 Max. Pred Cw
9 2011 < 2 1
10 2012 < 2 1
11 2012 < 10 5
12 2012 < 10 5
13 2012 < 2 1
14 2013 8 8
15 2013 4 4
16 2013 6 6
USE ONLY
"PASTE
SPECIAL -
Values" WITH
"COPY"
2.3503
2.6667
0.8814
15
3.62
8.0 ug/L
29.0 ug/L
NC0082949 Denton WTP 2012 RPA-FreshwaterREV.xlsm, data
- 1 - 1/10/2014

REASONABLE POTENTIAL ANALYSIS
11
Fluoride
Date
1 2010
2 2010
3 2010
4 2010
5 2011
6 2011
7 2011
8 2011
9 2011
10 2012
11 2012
12 2012
13 2012
14 2013
15 2013
16 2013
Data
BDL=1/2DL Results
100 100 Std Dev.
100 100 Mean
100 100 C.V.
200 200 n
100 100
Mutt Factor =
100 50 Max. Value
100 50 Max. Pred Cw
100 50
200 200
110 110
200 200
100 50
100 50
100 50
100 50
USE ONLY
"PASTE
SPECIAL -
Values" WITH
"COPY"
58.2441
97.3333
0.5984
15
2.55
200.0 ug/L
510.0 ug/L
NC0082949 Denton WTP 2012 RPA-FreshwaterREV.xlsm, data
- 1 - 1/10/2014

REASONABLE POTENTIAL ANALYSIS
18
Zinc (AL)
Date Data BDL=112DL Results
1 2010 < 10 5 Sid Dev. 10.7032
2 2010 < 10 5 Mean 10.1667
3 2010 < 10 5 C.V. 1.0528
4 2010 < 10 5 n 15
5 2011 < 10 5
6 2011 Mutt Factor = 4.32
7 2011 32 32 Max. Value 37.0 ug/L
8 2011 < 10 5 Max. Pred Cw 159.8 ug/L
9 2011 37 37
10 2012 < 5 2.5
11 2012 < 10 5
12 2012 <, 10 5
13 2012 <' 10 5
14 2013 19 19
15 2013 < 10 5
16 2013 12 12
USE ONLY
"PASTE
SPECIAL -
Values ' WITH
"COPY"
NC0082949 Denton WTP 2012 RPA-FreshwaterREV.xlsm, data
- 1 - 1/10/2014

REASONABLE POTENTIAL ANALYSIS
19
Aluminum
Date Data BDL=1/2DL Results
1 2009 187 187 StdDev. 1791.4078
2 2009 < 50 25 Mean 377.2222
3 2009 < 50 25 C.V. 4.7489
4 2009 < 50 25 n 45
5 2009 < 50 25
6 2009 < 50 25 Mult Factor = 6.21
7 2009 < 50 25 Max. Value 12000 pg/L
8 2009 < 50 25 Max. Pred Cw 74520 Ng/L
USE ONLY
"PASTE
SPECIAL -
Values" WITH
"COPY"
9 2009 279 279
10 2009 < 50 25
11 2009 78 78
12 2009 < 50 25
13 2009 < 50 25
14 2009 < 50 25
15 2009 < 50 25
16 2009 < 50 25
17 2009 547 547
18 2009 65 65
19 2009 < 50 25
20 2009 89 89
21 2009 608 608
22 2009 < 50 25
23 2009 < 50 25
24 2009 < 50 25
25 2009 < 50 25
26 2009 < 50 25
27 2009 < 50 25
28 2009 278 278
29 2009 < 50 25
30 2009 < 50 25
31 2010 < 50 25
32 2010 68 68
33 2010 < 50 25
34 2010 < 50 25
35 2011 < 50 25
36 2011
37 2011 12000 12000
38 2011 < 50 25
39 2011 267 267
40 2012 38 38
41 2012 1620 1620
42 2012 < 50 25
43 2012 87 87
44 2013 < 50 25
45 2013 < 20 10
46 2013 29 29
NC0082949 Denton WTP 2012 RPA-FreshwalerREV.xlsm, data
- 1 1/16/2014

REASONABLE POTENTIAL ANALYSIS
20
Iron
Date Data BDL=1/2DL Results
1 2009 386 386 Std Dev. 349.9440
2 2009 543 543 Mean 500.7556
3 2009 509 509 C.V. 0.6988
4 2009 546 546 n 45
5 2009 432 432
6 2009 504 504 Mull Factor = 1.91
7 2009 620 620 Max. Value 2170.0 µg/L
8 2009 454 454 Max. Pred Cw 4144.7 µg/L
USE ONLY
"PASTE
SPECIAL -
Values" WITH
"COPY"
9 2009 408 408
10 2009 479 479
11 2009 318 318
12 2009 267 267
13 2009 363 363
14 2009 484 484
15 2009 311 311
16 2009 423 423
17 2009 208 208
18 2009 225 225
19 2009 793 793
20 2009 600 600
21 2009 445 445
22 2009 328 328
23 2009 438 438
24 2009 358 358
25 2009 799 799
26 2009 639 639
27 2009 514 514
28 2009 692 692
29 2009 278 278
30 2009 479 479
31 2010 553 553
32 2010 460 460
33 2010 420 420
34 2010 1370 1370
35 2011 585 585
36 2011
37 2011 2170 2170
38 2011 380 380
39 2011 795 795
40 2012 658 658
41 2012 866 866
42 2012 142 142
43 2012 104 104
44 2013 45 45
45 2013 51 51
46 2013 92 92
NC0082949 Denton WTP 2012 RPA-FreshwaterREV.xlsm, data
- 1 - 1/16/2014

REASONABLE POTENTIAL ANALYSIS
21
Manganese
USE ONLY
"PASTE
SPECIAL -
Values" WITH
"COPY"
Date Data BDL=1/2DL Results
1 2010 5120 5120 Std Dev. 1827.7381
2 2010 1950 1950 Mean 4195.3333
3 2010 6660 6660 C.V. 0.4357
4 2010 5700 5700 n 15
5 2011 3710 3710
6 2011 Mull Factor = 2.03
7 2011 5140 5140 Max. Value 7260.0 Ng/L
8 2011 5330 5330 Max. Pred Cw 14737.8 Ng/L
9 2011 4590 4590
10 2012 5740 5740
11 2012 2280 2280
12 2012 2120 2120
13 2012 1930 1930
14 2013 2150 2150
15 2013 3250 3250
16 2013 7260 7260
NC0082949 Denton WTP 2012 RPA-FreshwaterREV.xlsm, data
- 1 - 1/13/2014

/t/o1S
Permit NC0082949
Facilty Town of Denton WTP
maximum, montly flow 36 mont 0.019
:7
r:
::lam:
h
'
•{i
••. •i:
Flow (MGD)
50050
Weekly
Instaneous or
Estimate
Effluent
Total Suspended Solids (mg/L)
C0530
30.0 mg/L
45.0 mg/L
2/month
Grab
Effluent
Turbidity (NTU)
70
2/month
Grab
Effluent
Total Residual Chlorine (µg/L)
50060
28 µg/L
2/month
Grab
Effluent
pH (su)
400
Not < b.0 or > 9.0
standard units
2/month
Grab
Effluent
Total Aluminum (mg/L)
1105
Quarterly
Grab
Effluent
: � hh }o({f4pQQ
< 0.05 MGD apply weekly/instaneous
or Estimate
< 0.5 MGD 2/month
< 0.5 MGD 2/month, stream is not
impaired so no limit
IWC calculation, Allowable Cw = 17
ug, apply min. of 17 ug/1
< 0.5 MGD 2/month
• Aluminum effluent data suggest reasonable
potential to exceed the EPA Human Health
standard of 8000 µg /L. Renewal requires
monthly monitoring of Aluminum with a
Monthly Average Limit of 8.0 mg/L. This limit
will become active three (3) years from the
effective date. Note: Looking at sources for the
high concentration of Aluminum in the
effluent, there were no violations for TSS noted
in the data. The greatest value reported for
TSS was 21 mg/L in August 2008. One
reported value of 12 mg/L of Aluminum
exceeds the Human Health standard on
05/19/11. The reported concentration of
Aluminum may need to be verified with the
laboratory.
2
3
4

Total Iron (µg/L)
10-15
Quarterly
Grab
Effluent
Total Copper (mg/L)
10-12
Quarterly
Grab
Effluent
Total Manganese (µg/L)
1055
Montly
Grab
Effluent
Total Fluoride (mg/L)
951
Quarterly
Grab
Effluent
Total Zinc (mg/L)
/092
Quarterly
Grab
11111.1011t
Ammonia Nitrogen
Total Phosphorous (TP) (mg/L)
('0665
Total Nitrogen (TN)(mg/L)
C0600
Iron showed reasonable potential to exceed
state water quality standards (WQS). Since
Iron has an action level standard, quarterly
monitoring will be maintained in conjunction
with toxicity testing.
5
Copper showed reasonable potential to violate
state water quality standards (WQS). Since
Copper has an action level standard, quarterly 5
monitoring will be maintained in conjunction
with toxicity testing.
Manganese effluent data suggest
reasonable potential to exceed its standard
of 200 µg /L. Renewal will require
monthly monitoring of Manganese with a 4
Monthly Average Limit of 0.2 mg/L. This
limit will become active three (3) years
from the effective date.
Fluoride did not show reasonable potential to
violate state WQS; however, since the
predicted maximum effluent concentration was
Tess than 50% of the allowable concentration
no monitoring will be required. However,
sincc fluoridated backwash water is being
used, Fluoride will remain in the permit.
Zinc showed reasonable potential to violate
state water quality standards (WQS). Since
Zinc has an action level standard, quarterly
monitoring will be maintained in conjunction
with toxicity testing.
No monitoring, does not use
Chloramines
<0.05 MGD, no NSW, no monitoring
<0.05 MGD, no NSW, no monitoring
5

Chronic WET Testing I TGP3B
Quarterly Grab Effluent IWC > 0.25% Chronic test at IWC 6
Fotenotes:
1 No later than January 26, 2015 begin submitting discharge monitoring reports electronically using NC
DWR's eDMR application system. SeeSpecialCondition A. (3.).
2 For instantaneous flow monitoring, the duration of the discharge must be reported in addition to the total
flow.
3 The Division shall consider TRC effluent values reported below 50 µg/L to be compliant with the permit.
However, the Permittee shall continue to record and submit all values reported by a North Carolina -
certified laboratory method (including field certified), even if these values fall below 50µg/L.
4 The Town will have 18 months from the effective date of this permit to install a continuous flow meter.
Until then instantaneous measurements can be taken with the duration of discharge to be noted in log
books and a total daily discharge reported on the DMR.
5 Samples shall be collected concurrently with WET -test samples.
6 Whole Effluent Toxicity (WET) testing - testing of Ceriodaphnia dubia shall be performed as 7-day pass/fail
test at 6% effluent concentration, during January, April, July and October [See A. (2.)].

01/14/2014 09:49 8593139
WATERPLANT
PAGE 02/06
TOWN OF DENTON
July 28,2013
North Carolina Departure ,t of
Environment and Natural Resources
Division of Water Quality
1617 MailsService Center
Raleigh, North Carolina 27699-1617
'Re: Renewal NPDES Permit NC0082949 •
Denton N TP
. Davidson. County
:Sirs;
Please find the Town of Denton's NPDES Permit Application_
Should there be additional questions please contact this office at your convenience.
Sincerely, .
Tammie Melton
'Water Plant Superikitendent/ORC
201 W. Salisbury Street
P.O. Box 306
Denton, N.C. 27239
Phone: [phone]
Fax: [phone]