NC0084387_Regional Office Historical File Pre 2018 (3)

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41,410A
Aci&ENR
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald R. vaAry
Governor RECEItRMFUROM
March 16, 2015 APR 2 2015
r. Jahn C. Huber, Chief of Operations WOR
OS
Charlotte Water MOORESVILLE REGIONAL OFFICE
7980 Babe Stillwell Farm Rd
Iluntersville, NC 28078
Subject: Issuance of NPDES Permit NC O084 8'7
Lee S. Dupes, Jr. Water Treatment Plant (WTP)
Mecklenburg County
Dear Mr. Huber:
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 Forth Carolina and the D.S. Environmental :Protection
Agency dated October 15, 2007, or as subsequently amended.
The Division understands that you have made no significant changes to your facility the last permit
renewal. We have made the following updates to your previous permit:
• removed monitoring for Total Iron, Total Copper and Total Manganese
• added quarterly Total Fluoride monitoring because of the use of Fluoride additive to finished j
water which is used as filter backwash, water
• added updates to facility map axiad parameter codes,
i
Proposed federal regulations require electronic submittal of all discharge monitoring p ( reports D ) and.
specify that, if a state does not establish a system to receive such submittals, then per ittees must submit
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 (eD ) internet application has been added to your NPDES
permit. it. [See Special Condition A. (1)] 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/admi-n/bog/ipu/edmr. j
For information on EPA's proposed NPDES Electronic Reporting Rule, please visit the fallowing web
site.
http://x v2.epa.gov/ o plianc /proposed-npdes-electronic-reporting-rule.
1617 Mail Service Center, Raleigh, North Carolina 7699-1617
Location: W N. Salisbury St. Raleigh, North Carolina 27604
Phone. [phone]t Fax: [phone] ICusto erService: "77-6 m6748
Internet:: wmwmw,ncwateror
An Equal 4pportunitytAfflrmative Action Employer

Mr. Huber\
� \March20 15}
g/

LEES Permit NCO084387
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STATE OF NORTH CAR( LINA I
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DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
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P"ERMIT
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a
TO DISCHARGE WASTEWATER UNDER: THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPLEES)
In compliance, with the provisions of North Carolina General Statute 1 3- 1 .I., other lawful standards
dard
d regulations promulgated and adopted by the North Carolina Environmental, Management
Commission, and the Federal Water Pollution Control Act, as amended, the
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Charlotte Water
is hereby authorized to discharge treated wastewater from a facility known a r
Lee S. Dube, Jr. Water Treatment Plant TP
7980 Babe Stillwell Farm :Road, Huntersville 28078
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Mecklenburg County r
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to :receiving wasters designated as McDowell Creep, within time Catawba River Basin, in accordance with E
effluent limitations, monitoring requirements, and other applicable conditions set forth. in Parts 1,11,111,
and IV hereof
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The permit shall become effective May 1, 2415.
This permit and the authorization to discharge shall expire at midnight on February 28, 2020.
Signed this day March 16, 2015.
v�ZZixnine , Director
zision of Water resources
By Authority of the Environmental Management Commission
Page 1 of

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Page 2 of 6

c
DES :Permit NCO084387
PART I
A. 1.) EFFLUENT LIMITATIONS ) MONITORING
[15�. NCAC 02 .04 et seq., 02B .0500 seq.]
During the period beginning on the effective date of this permit t d lasting until expiration, the
Permittee is authorized to discharge filter backwash via Outfall 001. Such discharges shall be lintited
d monitored by the,Permittee as specified below:
� t r
1
Flow (MGD) 50050 Continuous Recording Effluent
Total Suspended Solids (mg/L) r C0530 30.0 mg/L 45.0 mg/L Weekly Grata Effluent
Not < standard units 6.0 or > .0
pH (su) 0' 4 Weekly Grata Effluent
,.. C?
Total Residual Chlorine (fig/L) " 5t76 8 [g Weekly Grab Effluent
Turbidity (N 00070 Weekly Grab Effluent
f
Total Aluminum (µg/L) 01105 Quarterly Grab Effluent
t
Total Iron 3 (nil-) 01045 Quarterly Club Effluent
Total Fluoride 3 (lig/L) 00951 Quarterly Grab Effluent
Total Phosphorous (TP) (mg/L) C0665 Quarterly Grab Effluent
ii�N (mg/L) 00625 Quarterly Grab Effluent
NN03-N + NO2- ; (mg/L) 00630 Quarterly Grab Effluent
TN
4 m 1I C0600 Quarterly Grab Effluent
Chronic WET Testing 7CrP3B Quarterly Grab Effluent
i
Footnotes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge monitoring
reports electTonicaliy using NC D 's e.DNM application system. See Special Condition A. (3.).
. The :Division shall consider TRC effluent values reported below 54 [tg/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 54pg1L. �
3. Samples shall be collected concurrently withWET-test samples.
4. For a given wastewater sample, TN = TIN f NO3- + NO2-I , where TN is Total Nitrogen, TKN is Total
jeldahl Nitrogen, and N 3- and NO2-N are Nitrate and Nitrite Nitrogen, respectively
5. Whole Effluent Toxicity ( T) testing - testing of Cerio aphnia duhia shall be performed as 7-clay pass/fail
test at:37% 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. {'
p p g g
There shall be no discharge of floating solids or foam in either than trace amounts.
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DES Pennit NCO084387
NOTE. Failure to achieve test conditions as specified in the cited document, such as minimum control
organism 'sm 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
[G.S. 143- 15.1(b)]
Proposed federal regulations require electronic; submittal of all discharge monitoring reports (DMRs)
d specify that, if a state does not establish a system to receive such submittals, then permittees must
submit DMRs electronically to the Enviromnental 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 11 of this
permit (Standard C"onditio s fog° NPDE,S Permits).
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D, (6.) Records Retention
• Section. E. (5.) Monitoring Reports
1. Reporting Su er edes Section D. . and Section E. . a
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' Repoi t (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall' be summarized for each ;month and
submitted electronically using eD . The eDM1t system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. Until such time that the t.te's
eDMR application is compliant with EPA's gross -Media. Electronic Reporting Regulation
(CR. ME ), permittees will be required to submit all discharge monitoring data to the state
electronically using eDR 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:
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NPDES Permit Standard Conditions
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PART 11
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 125 1, 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 Ouarter
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 trianner 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 aliquot-, necessary, the time interval
between grab samples, etc.) on a case -by -case basis. Samples maybe 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
of discharge and comb
collection, or
(3) Variable time/constatu
the time intervals bet"
measurement between
preset gallon interval t
the treatment system, (
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Hazardous Substance
Any substance designated under 40 C"FR :Part 116 pursuant to Section 3 11 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 grata
samples required for the same sampling period so that together the samples and flow are representative of the discharge
during that sampling period.
Monthlv Avera e concentration limit
The arithmetic inean of all "daily discharges'" of a pollutant measured during the calendar month. In the case of fecal
ccliforrn or other bacterial parameters or indicators, the geometric mean of such discharges.
Permit Issuing Authority
The Director of the Division of Water Resources.
Ouarterlv Avera' e concentration limit
The arithmetic mean of all samples taken over a calendar quarter.
Severe nroncrtv darnaae
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 37(a)(1) of the CWA.
U' set
An incident beyond the reasonable control of the Perrnittee 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.
Weeklv Avera concentration limit
The arithmetic mean of all "daily discharges" of a pollutant treasured 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 Comely
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 J.
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 sections 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 unposed 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, 00 per day for each violation. [33 U C 1319(d) and 40 CF'R
1.41(a)()]
c. The CA 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 40
of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)( ) o
0(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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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 15013- 3]."
8. Duty to Provide Information
The erittee 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, o
terarinating this permit or to determine compliance with this permit. The Pernaittee shall also furnish to the Permit
Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41(h)],
9 Du to Reapdaly
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this pennit, the
Pennittee must apply for and obtain a new permit [40 CFR 122.41(b)].
M Exviration 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 permit; no later than 180 days prior to the expiration date unless permission for a
later date has been granted by the Director, (The Director shallnot grant permission for applications to be
submitted later than the expiration date of the existing pert -nit.) [40 CFR 122. 1(d)] Any Pe mittee 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 10 days prier to expiration; will subject. the Petniittee to
enforcement procedures as provided in NCGS 143-215 Ca and 33 USC 1251 et. seq.
IL Sip-natory Re uirements
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 fellows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corporate officer means: ' () 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 malting 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;
() 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 se
a different individual or position has responsibility for the overall operation
satisfying the requirements of paragraph (b) of this section must be submit
together with any reports, information, or applications to be signed by an a
12.]
'ision to initiate action to revoke the permit.
i and. Maintenance of Pollution Controls
exception ut no uacjK up operator in ruspimtstvie cnatt e is requtr u for systems whose: inimtttuut visj
requirementsare twice per year; and
c. submit a signed completed. "Water Pollution Control System Operator Designation Form" to the
(or to the local health department for owners of subsurface systems) countersigned by the designate
operators, designating the Operator in Responsible Charge (ORC) and the Back-up Operator in Re
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 designat
Operator in Responsible Charge (ORC) and Sack -up Operator in Responsible Charge (Ba+
of the proper type and grade; or
a vacancy in the position of Operator in Responsible Charge (ORC) or Back-up Operator
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 either conditions of 15A NCAC 08G .0204.
The ORC of each Class 11, 111 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 either conditions of 15A NCAC 08G 0204.
1 Prover Oyeration and Maintenance
The Permittee shah 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 122A I (c)];
4. B assin r f 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 shah 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 Pertnittee shall subrrut notice of an unanticipated bypass as required in Part
II. .6, (4-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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NC. DENR / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Piles
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 measurementsis 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:/lportal.ncdenrorg/web/wq/1ab/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 CW (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 12 .411
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 pen -nit 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 bath [40 CFR 122.41).
Records Retention
Except for records of monitoring information required by this permit related to the Perrnittee'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:
S� 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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5Monitoring Reports
Monitoring results shall be reported at the internals specified elsewhere in this permit [0 CFR 122.41(l)(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 Pertnittee 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: Twen -four flour 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 north l business hours may also be reported to the Division's Emergency Response
personnel at [phone],'[phone] or (19) 733-3300.
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part II.lE.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)1.
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 12141(1)(8)].
9, Noncom Nance 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 fiat
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 clumping of the contents of a sludge
digester; the known passage of a slug of hazardoussubstance 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 Retorts
Except for data determined to be confidential under NCGS 14-215.3: (a)(2) or Section 308 of the Federal Act, 33
USC 118, 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 NC"GS 143-'
215.I(b)(2) or in Section 309 of the Federal Act.
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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 Pernuttee is exempted from such AtC permit requirements
under Item b. of this Section.
b In accordance with NCGS 14-215.1(a5) [ L 011-39 ], 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 Ater 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 pertnit issued for the
discharge may be modified if required by federal regulation.
c Issuance of an AtC will not occur until Final flans and Specifications for the proposed construction have been
submitted by the Permittee and approved by the Division,
Section B. Groundwater Monitoring
The Peritte shall, upon written notice from the Director, conduct groundwater monitoring as may be required to
determine the compliance of this NPDES pennitted 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 CFP 12142):'
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 (1001tg/L);
(2) Two hundred micrograms per liter (2001ig/L) for acrolein`and acrylonitrle; five hundred micrograms per liter
500 fig/L.) for`2,4-dinitrophenol and for -methyl-4,-dinitropheol; and one milligram per liter (I m/L) for
antimony;
() Five tunes 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 (00 gg/L);
() One milligram per liter (I mg/L) for antimony;
(3) 'Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Facilitv Closure Re uirement
The P r ittee 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.
Version 1110912 11.1

NPDES Permit Standard Conditions
Page 15 of 18
All PCTWs must provide adequate notice to the Director of the following [40 CFR 12.2{b]:
I. Any new introduction of pollutants into the POTW from an indirect discharger, regardless ofthe means of
transport, which would be subject to section 301 or 346 of C A 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 steal I include information on (1) the quality and quantity of effluent
introduced into the POTW, and () any anticipated impact that may result from the change of the quantity or
quality of effluent to be discharged from the POTW.
Section C. Municipal Control of Pollutants from Industrial Users.
I: 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 Permitt e'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 NC"AC 02H .0900 and 40 CFR 403. [4
CFR 403.5(a)(1)]
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,
wastestrea s with a closed cup flashpoint of less than 140 degrees Fahrenheit or E0 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,
(3) 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 flaw rate`
and/or pollutant concentration which will cause Interference with the POTW;
(5) Meat in amounts which will inbibit 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) Petroleumoil, non -biodegradable cutting oil, or products of mineral oil origin in amounts that will cause
Interference or Pass Through;
(7) Pollutants which result in the presence of toxic' gases, vapors, or flames within the POTW in a quantity that
may cause acute worker health and safety problems; or
(8) Any trucked or hauled pollutants, except at discharge points designated by the POTW.
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 Pertnittee became aware of the
circumtancesA written submission shall also be provided within 5 days of the time the Pertnittee 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 elates 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,
Version 1110912011.1

4
pppppp�
1 2 2 215
NCDENR
North Carolina Department of Environment and Natural ResourcesWOROS
M O Esvlt LE REGIONAL OFFICE
Pat McCrory Donald R. van der Va rt
Governor Secretary
April 27, 2015
r. Jahn C. Huber, Chief of Operations
Charlotte Water
7980 Babe Stillwell Farm Rd
Huntersville, NC 28078
Subject: Change -Page to Correct Error
NPDES Permit NCO084387
Lee S. Dukes, Jr. Water Treatment Plant ( rl?)
Mecklenburg County
Dear Mr. Huber:
The Division of Water Resources (the Division) became aware of an error in your recently issued. permit (March
16, 2015). Total Iron monitoring was inadvertently left in the effluent limits and monitoringpage (Condition
A. 1.). The parameter was removed because there was not a reasonable potential to exceed the allowable
concentration.
Accordingly, we hereby forward the modified permit pages to amend your permit removing monitoring for Total
Iran as was indicated in March 16, 2015 the cover letter. Please insert these change pages into your existing permit
and discard the old pages. We regret any inconvenience this causes your organization.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the nermit_ This nest -nit doeq not affer;t the looral recnjirensent. to
VuLzcua Vuaua ptallrlGs W111Q 1 111ay or, a ttuneu oy me € iviszon oa water resources or any orner re'aeraa, gave, or
Local governmental permits that may be required.
If you have 'questions, or if we can be of further service, please contact Derek Lenard at
[derek.denard a rrcdenr.gov] or call (919) 807-63O7.
e`spect ally,
Jay Zimmerman, Dire .n
Division of Water Resources, NCDEN
Enclosure: NPDES Permit NCO007552 (Corrected Pages)
lie: Central files
j��Irograi
lfiles
cc: ogy Unit Man [susa .raeadows*icdenr.gov]
Jack Jarrell [Jaarrell&i.cliarlottexc.us]
Dandy Hawkins [[e-mail]]
Gabe Sasser t sasser [e-mail],nc us]
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Phone: [phone] Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer - Made in part by recycled paper

ppppp" DES Permit NC 08438'7
PART i

S
ff
re
TOXICITY PASS/FAIL MONF
'. 0 B .0500 et seq.]
discharge below all treatment processes:
rity testing results required as part of this permit cohditic
,e Monitoring Form (MR-1) for the month in which it w
Additionally, DWR. Form AT-1 (original) is to be sent 1
.Attention: North Carolina Division of
Water Sciences Section/Ac
1621 Mail Service Center
Raleigh, North Carolina 2',
ed Aquatic Toxicity Test Forms shall be filed with. the "V
�r the end of the reporting period for which the report is i
shall be complete and accurate and include all suppoiti
ted above.
include alternate monitoring requirements or limits.
Page 4 of 6
resources
,xicology Branch
?1
fences Section no later tl

NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory John E. Skvarla ill
Governor Secretary
September 29, 2014
r. John C. Huber
Charlotte Mecklenburg Utilities
Lee S. Duke WTP
7980 Babe Stillwell Farm Rd.
Iluntersville, NC 28078
Subject: Acknowledgement of Permit Renewal
Permit NCO084387
Mecklenburg County
Dear Mr. Huber:
The NPDpS Unit received your permit renewal application on September 24, 2014. A member of the
1ES Unit will review your application. They will contact you if additional information is required to
complete your pennit renewal. You should expect to receive a craft permit approximately 30-45 days
before your existing permit expires.
If you have any additional questions concerting renewalof the subject pen -nit, please contact Derek
Lenard [phone].
Sincerely,
Wren. Thedford
Wastewater Branch
cc: Central piles
gto
MORb
NPDES Unit
117 Mail Service Center, Raleigh, Norte Carolina 27699-1617
Location: 512 N. Salisbury St, Raleigh, North Carolina 27604'
Phone: [phone] Fax:[phone]iCustomer Service 1-877-623-6748
Internet:: vvwngV�ter.orq
An Equal Opportunity6Affirmative Action Employer

CT 8 2014
w. CIIARIA)TTF,.. : I}i pp��VED j/ ..rv.
September 1, 2014 SEP 2 4 21
Water Quality
Division of Water Resources Prmittln Section
Q Permitting Section -- NPDES
1617 Mail Service Center`
Raleigh NC 27 -1617
Subject: Renewal NPDES 'Permit # NCO084387
Lee S. Dukes Water Treatment Plant
Mecklenburg County
WQ Permitting Section,
In accordance with our permit we are requesting renewal prior to our expiration date of February 28,
2015. Enclosed is our NPDES Permit Applications Short Form C for the renewal of NCO0 4387 for the
Lee S. Dukes Water Treatment Plant
Also attached to the Short Form C are:
Response for describing the treatment process for raw water (7)
Response for wastewater and treated process for wastewater generated by the facility (#8)
Solids Handling Plan
• Plant Flow Schematic
Outfall/discharge location
G.«... ... . .... ...r+,...,..- ..,1-------*-.r+ ...........:+ -tnn ^Inn ^t n^ir ....a.,.::.:....:....,. ^^rnxt _.,, n_.,..J.. i 1_...1 ._ _a..7ni
201-8344.
Sincerely, s
John C. Hu Yer
Chief of Operations
City of Charlotte
Charlotte -Mecklenburg Utility Department
CHARLOTTE-MEC LENBURG UTILITIES
Water Treatment Division
5200 Brookshire Boulevard
Charlotte, NC 28216
PH. 704/399-2426
FAX. [phone]

rip
2. Location of facility producing discharge:
Check here if same as above
Street Address or State Road
City
State / Zip Code
County
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note thl
Operator in Responsible Charge or ORQ
'Name City of Charlotte
City
Charlotte
State / Zip Code
N.C. 28216
Telephone Number
(704 399-2426
Fax Number
[phone]
4. Ownership Status:
Federal 0
state El Private El
Page 1 of 3

NPDES' PERMIT APPLICATION - SHORT FORM C - `'Gii'TP
For discharges associated with wafter treatment plants
S. Type of treatment plant:
j Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
[ Ion Exchange; (Sodium Cycle Cationic ion exchange)
[� Green Sand Filter (No sodium recharge)
El Membrane Technology (RCS, nanofiltration)
Check here if the treatment process also uses a water softener
6. Description of source water(s) (z.e, groundwater, surface water]
7— Describe the treatment process(es) for the raw water;
See Attached
g. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility:
See Attached
9» Number of separate discharge paints. 1
Outfall Identification number(s) 1
10. Frequency of discharge: Continuous ❑ Intermittent
If intermittent:
Days per week discharge occurs: 7 Duration: Approximately 4hrs/day
11. Plant design potable flowrate . 31 . MGD
Backwash or reject flow 9' MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
McDowell Creek'
1. please list all grater treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged"
Alum aluminum sulfate Ye ._ No
Page 2 of Version 5I2012

PV
7. Describe the treatment processes for the raw water.
Raw water is treated with potassium permanganate and carbon as needed. Aluminum sulfate is
added at the head works of the plant. The raw water then passes through three stages of
flocculation before entering the sedimentation basins. Chlorine is added just before filtration.
Raw water is then filtered and lime and chlorine are added. The water is then dosed with
additional chlorine and sent to the clearWells.
8. Describe the wastewater and the treatment processes for wastewater generated by the
facility.
Solids are generated from the water treatment process and consist mostly of alum sludge.
Solids generated from the sedimentation basins are discharged thru a gravity thickener and then
discharged to a holding lagoon, Solids generated from filter backwashes are discharged to an;
EQ basin. The solids from the EQ basin are sent to a clarifier. The solids are they► sent to the
thickener and then to the holding lagoon. Clarified water goes over the weir of the clarifier,
through a de -chlorination chamber to the NPDES discharge point. Solids from the holding
lagoon are removed and land applied in accordance with our land application permit.
Solids Plan
1. Solids generated from the sedimentation basins are discharged thru a gravity thickener
and then discharged to a holding lagoon.
2. Solids generated from filter backwashes are discharged to an EQ basin. The solids from
the EQ basin are sent to a clarifier. The solids are then sent to the thickener and then to
the holding lagoon: Clarified water genes over the weir of the clarifier, through a de -
chlorination chamber to the NPDES discharge point 001.
. Solids from the holding laoon are removed and land applied by a contractor to be land
applied as a liquid. We also have the ability to tanker the liquid to a belt press for
pressing then land applied or taken to a land fill.
4. The contractor must follow the permit # W.Q. 0000057 for solids disposal.

Lee S. Dukes
Process Flow DlaG
Carbon
Alum
Chi no PolyOmer
Woo,
Sediim_entation
East Module I
Lake Norman
aw
,
Sedimentation
fn
LEa.tModule 2
1 J-1 f-L J-1
r a --- I - ------- ful I
Finished
water
r
,learwel
9 Miearwel G
High Service To 978
2
Pump Station Zone
9 MG
;IearwelD3
9MG

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Alleacc®, Marcia
From: Allocco, Marcia
Sent: Tuesday, October 28, 2014 3:15 P
To: Denard, Derek
Subject, NCO084387 - Lee S Duke WTP renewal
Hi Derek,
Since the Lee S. Dukes WTP is not a major facility MR ? does not plan to provide a formal staff report as part of the
permit renewal. Since I did the last compliance inspection I figured 1 could review the application and provide
comments;
• They were compliant during the last compliance evaluation inspection on May 22, 2014. They had very good
recordkeeping system and laboratory records to back-up analyses completed on site. They needed to tighten -up
a few things regarding field lab meter calibrations/verifications but I am confident the requests I made will be
fulfilled. Their effluent was clear and did not appear to be affecting the receiving stream.
•' MRO would support renewal of the NPDES permit.
If you have any questions please do not hesitate to contact me.
Regards,
Marcia
Marcia Allocco, MS - Senior Environmental Specialist
NC Dept. of Environment & Natural Resources (NCDENR)
Division of Water Resources - Water Quality Regional Operations
610 East Center Ave., Suite 301, Mooresville, NC 28115
Phone: [phone] Fax: [phone] }
marci.allocco ncenr, o
wn atr uali' .or
Please note that effective Oct. 15, 2013, the MRCS copy fee i 0.05/page. This applies to all copies; the first 25 pages
are no longer free.
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Lair and may be
disclosed to third parties unless the content is exempt by statute or outer regulation,

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality Dee Freeman
Beverly Eaves Perdue Coleen H. Sullins Secretary
Governor Director RECEIVED
DIVISION OF WATER QUALITY
December 16,2010 JAN 0 6 2011
SWiSECTION
Mr. John C '. Huber "MOORESViLLE REGIONAL OFFICE
Charlotte -Mecklenburg Utilities
5200 Brookshire Boulevard
Charlotte, North Carolina 28216
Subject: Issuance NPDES Permit NCO084387
Lee S. Dukes WTP
Mecklenburg County
Dear Mr. Huber:
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDE S discharge permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215 . 1 and the Memorandum of Agreement between
amended.)
This final permit includes the following changes from the draft permit sent to you on October 27, 2010.
• Based on revised flaw data submitted to DWQ on November 10, 2010, a revised In -stream
Wastewater Concentration (IWC) of 30% was determined using a summer 77] Oflow of 1. 8
cfs for McDowell Creek and a three-year, maximum monthly average flaw of 0. 503 MGDfor-
Lee S. Dukes WTP. The Quarterly "ole Effluent Toxicity testing was changed to read as
follows: Chronic Toxicity 7-day PasslFail Monitoring (Ceriodaphnia dubia) at 30yo;
January, April, July, and October. See Section A. (2)
• The Total Residual Chlorine limitation was changed back too 8 uglL to reflect the revised
flow data and IWC.
The following changes made in the draft permit are retained in this permit as follows:
• Monitaring for settleable solids was removed from the permit
• Turbidity monitoring remains but the limit was removed
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 One
Phone: [phone] t FAX: [phone] ti Customer Service: 1-877-623-6748 NofthCaroltiia
Interne4., wwncwaterquality,org 'A I t
An Equal Opportunity 1 Affirmative Action Employer

Permit
STATE OF NORTH CAROL:
DEPARTMENT OF ENVIRONMENT AND NA
DIVISION OF WATER QUA]
PERMIT
M .'
In compliance with the provision of North Carolina General St
standards and ,regulations promulgated and adopted by the I�
Management Commission,: and the Federal Water Pollution C
Charlotte -Mecklenburg Utility DE
is hereby authorized to discharge wastewater from ac
Lee S. Dukes WTP'
78 be Stillwell ell
Huntersville
Mecklenburg County
it
By Authori'
m
partment
lity located at

NPI)ES Permit Stanclarcl C;canclitions
['af, , i of 18
PART 11
STANDARD CONDITIONS FOR NPDES PERMITS
SewonA. Defigitions
Samples are coff(ctecl mice per morith vdth, at faist ten calendar clays hawven sarripiing events. These sanipIc-- shall
be reffaroc: ntati cY of the mistC a tc�r disc har e l ciraring, th sampl sic .
vee
S.trnples are cc cvtecl threetimes per week k on t.hm selmriate calendar clatys, Thcse sarnfi s shall lam: reproie-tative cif
the A astc A clischarg;ecl daring the sample f ricxl.
.Act or ""theAct"
'rhe Federal Water Pollution Control Act, also known as the Clean Water Ad (CW ), as amenck- 1, 33 l JSC 1251 et.
Seq
AnnUA-Averaawe
The arithmetic trienn of all "tlaaity d scharf;--s" of a fxAluumt measurecl clttring the calencLir ycara In the caa`se of fecal
coliforria, the geometric mcm of st ch clisel-hirgs',
Arithmetic M exi
The summation c1-the: incliviclual NAttcs ciividctl taythe ntr nlxx.1t- of individuA, vzdties.
3-aalssl
The krxmn diversion of N,,-, ste stre -ris from any l >rtion of a treaatnaerit facility inclucling the collection systeln, which
is not a designeci or established or ofx-ratitk m(Ae for the facility:
C alenclar Day
, he fxTi(l from naicltal ;lat of one day until taicinight of the next clay. However, for purf )sc of this Permit, 'my
consecutive 2 -hour fxTicxl that m-iscrnably= reIfirc tints the calendar clay nxty be used for saraifaling,
L,.joidar Wwk
The f • cxl from Sunday through the following Saat trclaay.
C�arieaciati° >traatr��-
One of the following distinct fx rica(ls: Jariu: ry throtkgh larch, April throe It ,tune; ,ttaly through Septer alter, aitul
OctolxT through Dec°emlxi%
Coin x),site SM"Plale
sample collecte(i over as 24-1-our pc.�riod by cont:inctcatas sampling or c ornt)ining <al'r sarnplcs of at least 100 ml in
such a manner ass to result in a total saarnple rc,pr"escyr at.ive of the Nm stc Ater cli chtarge cluring the san plc Ix" iocl, The
Director may designate to the most appropriate nt fiml (sixvif'ic nurnt .yr and size of aliquots nec:sary, the tunic
intcrv<al bemcxm gab .samples, etc.) care as caasc-by case basis. Smaaples may be collectecl n=rwdly or aautont ati(A y.
Ciamp axs to samples may lae obtaine l by the following niethocls:
(1) Continuous: a sin« e, c ontinuotas sample collectecl over as "24-hour f Tic l profxotionA, to the rate of f~loxv.
(2) Constant tirne vaariatile volume, as series of WA-) samples collected at ecfuA time intet-vais over at 24 hour
periocl of discharge and con lined profxart ional to the rate of flow nnc.#lsured at the tin'te of itaclividual saarnple
collection, or
(3) Variable tirne`constatttt volunie: as series of grab samples of exl aal volurne collectctl over a 24 ltc>tar° fx itxl
with the time intervals ix.t\vecn samplers cictet-mincxl by ax pmsct nuiri er of gallons passing the saaritplin
point. Flow meaasur er aerat N--tween sample intervals shall fic- cleter trii -ml by use of a flaw recorcler <md
Version 512009

NPI) ES Pan* Standard Conditi ariws
)Page 3 of 18
C,rala Sarnple
f tadiv id A saunple°; of at lest 100 nil collected at period of time not exceeding eding 15 minutes. GTra l a saarnples caar l-ac
collected tnantrtlly. Grab samples au st be rupaNentat ve of the dischaa°l e (or the receiving str(-.ti-i, for instra-ifil
S plc ).
1-iaazaardiatts Substance
Any substance dosigi ated Lander at) CFR Pat 116 pursmitit to Section 311 of the C WA .
Instaant, ccaaa<s flow ma surer rent
A rnei dsure c>f flowtaken at the tine, of swii ling,: NNfi .n both the szaan le wacl floxv Nall be rel,-v sc-,n ative of the tc t,.d
discItir ,e.
Uonthly Av£crat =e concentraation limit
The arithtnaic tna of' alit "daily dLsdiar es" of a tx>llutant me<aas arod daring the calendar month. In the case of fc� A
coliforni, the geoinctr c: mean of such cfi~sclub-ges:
Permit lssaaital� t�tatlac> ity
The Dirwor of the Division of Water Quality.
: uwte1rly Ave ale (c:onccgatration Rmit)
]'lie awragge of tall saan plcs takoa over a c.aalen(laar quarter.
Severe tarotxtty daara� ar e
Substantial ph sicA cfaata ige to prof-rty, cla nape to the treati-nait facilities which c<taa es than, to lac -cc ine. roof -T al le;
or st bstaantiaal atrid perniaanciit lass of natural resource, which can rc,aso ply l tal to occur in the: atisencc of al
l)ylxass. Severe re property chin a e exclude-, econornic loss mused by dclaays in production.
Toxic Pollutant:
AnylxAlutant listed as toxic under- Section 07(a)(1) of the CWA.
C't aset
n incident t)(yond the reuse nkle control of the Perrnitt e causing, unintentional al and tc rnlx)raary noncompliance -with
perinit dfluent limitations atacllor ni(xiitori g r . rirctnen s. An upset does not include noncompliance caatays(.-1 l,-)yr
operational error, improperly deli med treatment facilities, imide'cpate treaatrneynt facilities, lack- of preventive
tni tenw-ice, or careless or improp(-T operation,
W,vkly Avera (c onctntr "atior Ilinair
Me arithmetic main of call I'daily disclxtrges" of :a l allut<ant in ured during the c.4endar week. In th case of frcaa.I
coli.fornii, the georyaetric rnean c of such discharge,,
5pg!Lon B. C . W ConMiom
l: I�tat' t� ca �4car�ataly
The Perniatee. natLst comply with, all c o ditior-Ls of this permit. Any Maw rionconipliance consititutes ai vic.alaati<�n
of the (,,WA and is grounds for enforconerit action; for Minit to rniia-ration, rewx,,ation and reLssuance, or
mo lificaation, or dcniA of a pertnit renewal atpplicaation [cif) C FR 12 .411,
aa. The I'c rnittce slaaall comply itla effluent standards or prohibitions c taal-Aished under sevtion 307(a) of the
CWA for toxic, pollutants wid -with stwidards for sevuge sludge: use or clislxisaal oitaa fished under section
4-05(d) of the CWA within the tirne provided in the regalations that csublish thrse stianclarcls or prohibitions
or stanchrds for smuW, , sluctge use or clispasA, even if the p -Trait has not yet been rn(xlificcl to incorporate
the recta airentent,
Version 12

N PDE S Permit Staridard Conditions
of the Federal Act, 33 USC 1319. FLtrthermore, the Permittee is responsible for consequential tial darnag��, such its
fish kills, even tho ugh the responsibility for effective compliance may be temIx)radly suspended,
4. Oila,md Hazardous Substance Liability
Nothing in this permit shall be cot strued to preclude the institution of any legal action or relieve the Permittee
from any responsibilities, liabilities, or penalties to v&ch the: Perri ittec is or may be subject to under NC'GS 143-
215.75 et scxl. or Section 311 of the Federal Act, 33 USG 1321. Furtherinore, the Perrnittee is rc-sponsible for
conseAlttential daatnages, such is fish; bills, even though the responsibility for effective compliancy may b
temporarily suspendect
. hrxo �rty Ili 1 ats
The issw ce of this nit does not convey any property rights in e thei real or personal property, or any
exclusive, privilege, nor does it authorize arty injury to private property or any invasion of personal rig'its, nor,
anyinfringetnent of Federal, State or locaal laws, or r . alations [40 CFR 122,41 (g)]w
& Onshore or Offshore Construction
`1"his pern-At does not aLithcarize or approve the constructiota of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
7. Serabilit
The provisions of this pert nit are severable, if any provision of this pernait, or the application of any provision of
thispermit to any circur stances, is held invAid, the application ation of such prevision to ether circur nstances, and the
remainder of this permit, shall not he affected thereby [N CGS 7 50B-2 i.
. Dutv to Provide Infor Lion
The Permittee shill furnish to the Permit Issuing Authority, within a reasonable time, any information which the
Permit Issuing Authority may request to deterrnine,vhether cause exists for nioditying, revoking and reissuing or
terminating this permit or to determine compliaance'xvth this permit. The Permittee shall also furnish to the
Periaait Issuing Authority upon rey cst, copies of records required by this permit NO CFR 122,41 0A.
9. Dutyto Ra.at)raty
I f the Permittee wishes; to continue an activityrc-gtlated by this pernift after the expiration date of this permit, the.
Pcrniittee must a plyfor and obtain a new n-iit [40 CFR 122.41 b)t
10. E xfarr atican of Pertaait
The Pennittee is not authorized to discharge after the expiration (Late. In order to receive autonaaitic
authorization to discharge beyond the expiration date, the Permittee shall submit such information, fora-s, brad
fees is are rckjtired by the agency authorized to issue t rinits no later than 180 days pricer to the (xpiration date.,
Any Per ittee that has drat requested ren , u l at least 180 claays prior to expiration, or any Perrnittee that does; not
have a p .-nnit after r the expiration and has not rOCILICSted renevml at least 180 days prior to expiration, will subject
the Permittee to e forcernent procedures as provided in N CGS t43--215.6 and 33 USC 1251 et. scn
11. Si xitory e]cnairem nts
All applications, reports, or information submitted to the Permit Issuing, Authority shall be sigricd nand. certified
[40 CFR 1 2A1 Wk
aa. Aff peffnit applications ig follows:
(i) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corlaorate officer; rn s: (a) a president, secretary, treasurer or vice president of the corporation in
charge of as principal business function, or any other person who performs similar policy or decision
maakina functions s for the corporation, or cia? the manager of one or more inanufacntring, production, or
operating facilities,, providect, the inamiger is authorized to make rnanqgernent. decisions w,laich govern the
opetation of the regulated facility including having the explicit or implicit duty of making major capital
investment re°comaienclations, and initiating and directing other comprehensive rneaasur s to aawssure long
Version 512009

NPIyES Permit Staanciaard Conclitinns
Page 7 of 18
cf +C. O CD PU COI&OIS
1, Certified Q ;attar
Upon chissification of the -ri'llitt�-yt facility by the Certification Con-u-nission, the I errilittee, slil'all C11-1ploy a
ccrtificcl water pc>lliatican control treatment, systen1 operator in res� ponsilatc chary, (ORC;) of the water pollution
control treatment system, Such operator must hold <a ccrtific,ation of the grade ccluivaalcitt to or iguater than the
chms,ificaation assigned to the NN ter• polluti<an control treats-nerat systerta by the Certification Contntissio a. The
Pei°' 'tte ta-aaast alaao employ one or more certified Back-up CRCs ultra possc°ss a ccarroitly valid certificate of the
tyry of the systems, Back-up ORCs mast passes-s as grade ctla.aal to (car nca snore than cane: ade less than) theLLt�t3e
caf the} system [15A N C A C 8G .02C111.
The 0RC: of c,ach C h s<s N f"acilit y must:
Visit the fitcitity as often 4a;s is c� sai°y to insure proper operation of the tmatrimit systena, the; troatment
faaility tntast lae visitc�l <at. Ica"st �kiy
Comply with all tether conditions of 1 A NCAC 8G.0204,
ThcX ORC of c Bch Claass I , III w d IV facilitymust.
r Visit the facility aas oftet't As is necessaryto insure proles' of the traimnent system, the tre am -lent
facility natarst be visited at least five clays per wvebc, excluding holidays
Prcaperly manage: and document daily >peratic n and i°raaintenance of the facility
Comply with all other c onditiorais of I 5A N CAC 8G D2044.
Once the; facility is classified, the I'crn"atttee shall submit as letter to the Certification Co mission designating the:
of --attar in respcarisilale clxlrge:
a. Within 60 calendaar clays prior towtstesArater l x�nk intrcadaced into as now systet'n
la. Within 120 cat clear days of:
Receiving notification of as change in the classification of the syston rcgLjir ng the dc,sig Vatican of a
new OR C and Nacl -up OR
S A vacancy in the lx sition of CRC' or back-up CS C :.
2. Prc>taur 0 oetation and M a intmaaa ace
The Pcrnaittee shalt .at all t inae s provide the calaci°aation ,ind aatiintena nce rc-sourecs, necessary tea of)e- rate thc° ex- isting
facilities gat 0ptinaLUT1 efficiency" The ernaitte :. shall at all times prcaperly operate w-ld r r " atain <.aft facilities and
systems of treamnent and control (and related appurtenances) which are installed or used by the Pernittee to
achieve ccanapliancc Nvith the conclitiorts of this permit'. Proper operation and mainterimee also inducle aadcrlaaaate
laboratoty controls and appropr Otte cftaatlity as suraance procedures. This provision z"eftaires the P rrnitte to it~Lstall
and operate backup, or awdliaary facilities cwc y Nvfaert necessary to achieve ccaraaplia ce With the c~c>nditions of til
permit [40 CIa R 122,41 (et
NOTE: Properly and officiAly designated operators are fully re-s-ponsible f"car call proper oixaration and
m ainteriarace of the facility, and all doca anentation required thereof, whether acting, as as contract ; ofx.,ratitr
Isultc"ontnl toil or'a aaaerntm- of the N.'ri fiat-c's staff.
3c. it to Halt or Rctlaace not a Defease
It shall not be a d fease for as Permittee in an +orco-neat action that it wcauld have Ixen necessary to halt or
reduce the pemitted activity in order to naaaintain coiiapliancc. with the condition ditio of this tern -tit [40 CI~ R 122.41
('c)]
4 B .aassiniz caf "if re atrnCrit IF acilitic:G
a. B)Vwss not ccxcctxling lir ataat ors 1,40 C:FR, 2141 41-) (2)[`
Version 5 009

NP1)ES Permit Stan(brcl Conditions
['age 9 of '18
reopene-d and modified, or revokcxf -,vid r°o,ssmA, to incorporate orate applicAe z°cqtairvirxr ,, is at 40 C FR 503, The
P r nittee shall comply rk°ith applicalAe 40 CFR 50 StandarcLs for the, Use mid Disfxisal of S(-Wa cSludge (N*dxen
prorritilgatc(l) within the time provided in the rcxg;rrlcation, even if the Ivrarit is not nioclified to incorporatethe
requirement. `l'hc: Pertnittee shall notify the Permit issuing; Authority of any si<nxificxit change in its sludge, use
or disl x<s.A practices.
?. Power 14'Aures
The: Pearru ttee is res.-wnsible for nx tinttainiRg adequate safq;(aarcls (as rctluired 1--)y 15 N CAC H.0124.) to prevent
the discharge of untrcatcd or irrackx1trately treated wtsies dtiring electrical 1 oNve- f aiiurc°s dther by rrxeatrws of`
alte naate poxvvr source s, standby gena- ators or ret(ntion of iradegLvately trawed e fluemt.
S U. Mpt9tqdjgr
l: Rc-t)re-scntative S<in-splint
Sa mplos collected anti rrm,1srrrements taken, as rerjuired liege n, shall be characteristic of the volume and torture of
the permitted discharge. San-,tplo.� collected at a frcx1tietrcy lc�.s tltvi dal sirrall be taken on <a clay, and titnc that is
characteristic of tire, discharge over the entire l riocl the: sa nple represents. All s<:arrrple shaall be takert at the
nxorritorin points sfxc-cif ed in this peen -tit and, unle is otherMse sl ific l N-Yore the effluent joins, or is diluted
by zany other- rva testram-i, truly" of water, or SL1bStanCC, Monitoring; points shall not, be ch-,,iriged vvithout,
raotificartion to and the approv.tl of the Pertnit Issuing Authority [40 CFR 12241 (j)].
R . )rtin
Monitoring results obtained during; the ;previc s nrcxnth(s) shA 1)e s atntnarized for each ttxonth and rqpxted on as
nxoi tlxly Discharge Monitoring Report 0)MR) Form iv1R 1, 1.1, 2, 3) or alternative forms .approved by the:
Director, postmark-ed no later than the last cafe actaar clay of ttie month fcxl.to itx t.ixe cotnplet(�ci r xrtirr ; ,kx .
"r he first DM11 is clue, on the laast dayof the month following tfre issuance of the fxerrnit or in they c°ase of anew
facility, on the: last (by of the rtionth follovNi g, the ccrrnmenccrrient of dLschargre. Dti licaue signed copies of
these, and ail other re rats regUired herein, shai[l lxe stibnxittcd to the: f ollowing; aaddro�s:
NC Z` ENR / Division of Water Qa.rarlityy/ Water QualitySc tion
ATTENTION: Central Files
1617 Mail Service Center
R2deigh, North Carolina 27699-1617
3, F low Mexaksureinents
Appropriate flow ne<asurerneixt dev>icc"S and tri thods conststent with acccpated scientific pr ctice-, shaall be selects
.and used to ensure the accuracy and reliability of tneaslare'nents of the volume of monitored discharge 'rh
cleAd es shall be instaalle(l, calibrated and n-rdntained to msure that, the aac.carraacy off the xe. sarrernents is consistent
t
with, the aacce atcel cal-ar..)ility of that type of device, Devices sel t(A shall be cupa ble.. of 'rixc isur~irr ; flows v6th ca
rnxxit turn deviation of less than 1016 from the true discharge rate thro Qmout the range of expe(tcxl <clisc°harge
volurric s, Flow nxe rsurement device, slt-all be acctar<ately calibrated at as nrinimuur of once per year and niaaintaai ed
to tnsure that. the accuracy of the nxttsuivi re fits is corrtisiwste t with the accepted caixabdityF of than type of device.
The Dire ctor shall apf-xove the flow m a- urenient deviceand monitoring location prior to installation.
Once -throe h condenser cooling water flow monitored by lxaanxp lobs, or lxtanxp hoar meters as specificyi in Part f
of this permit and [lased on the rixaanufacturer's paanap curves shall not 1v subject to this rerlt.tirentent.
4 Test Pre edg[r ,s
Latioratories aAaysed for s utiple =tlysis niust lxcertifie.xl by the Division. Pei nxitteos should contact the Division's
LaaNiratoty Certification Section (9,19 733- 908 or lrtt,). for inforrnaation
re-g-, rding; laboratory certifications,
Version 512009

NPDES Permit Sta adard Conditions
IIage I t of IS,
la. Have access to wid copy, ,it misonabl times, {gray recorok that naust be, li t under the conditionvv. cal' this
I nartp
c. Inspect at reasonat-A times any facilities, (:quipinent (including, monitoring and c ont rof {.quil.-mimt)practices,
or opcyaationss rggrulaatcd or r quireyi tender this pei niit; and
d. Saaniplc or monitor at reasonable tirncN, for the purposes ()fasisuring pernlit corripliance or is othenAise
:authorized by the CWA, any stalxstaanc°eas or paraarrieters at any l catic:>n [40 (TR 12141(01.
Section
1. L.han e in Discha r w
All discharges autliorizetl herein shall lae consistent pith the terms arid conditions of this IxTinit. 11-re discharge
of any p ollutatrit identified in this Ian:-rmit more froquentlyy than or at, as lcv,(A in cxcc s of that authorized shall
constitute a violation of the Ixtmit.
?. Planned Chaan 1 -
The PerinittCe shall pive notice to the Director as soon as I issible of` any planned physical alterations: or
additions to the pernaitte l facility [4() CFR 12141 >41 0 A. Notice is required only aNvh
aa'1'he aalteraation or addition to as p rraaitted facility may t net one of the criteria for now sotirces, at 40 CFR
122.2c) (b)i or
la° `Elie. alteration or addition could `significantly change the nature or increase the quantity of polltitants
ciischa -heel. This notification aapplic's to prallutaints subject neither to ef'fIrimt litaait<atioras in the poxmit, nor to
notification requireniet-its under 40 CF R 122,42 (1) ().
c. The -Jteration or addition results in as significant change in the Permittee's sludge, use or dispcasaal practices,
and such aAte ration, addition or chaali e r aaay justify the application of permit conclitiotis rluit are cliffm-lit
from or alasent in the existing; I t" 't, including, notification. of additional use or disposal site-,-, not rq-iortecl
during, the permit aapplic,-at ion process or not reported paarsuaant to an approved land application plat-,.
3. Antzc4arcx9 Ncancciriataliarrce.
The Permitteryc shall give adv<a ce notice to the Diroxtor of any pa 'aed chango, to the pern-fitted facility or other
aac tivitieis that mionit result in rronconapliance ith the permit [40 CFR 122.41 (1) Ut
Traat sfet-s
'1"lais jx#rniit is not transferalale to any pet -,,ion without aapprovaal from the Director. The Director mayrequire
modification or revocation and reisstaaarice of thee, pcTiiiit to dcx`a°tnie at the cih< qe of ownership. A.ny such action
may incorporate orate other requirements as may, Ix- necessary under the CWA [40 CFR 122,41;() ( t
a. Monitorin a Rg,)c>rts
Monitoring-,; results shall 1-)e re xarted at the intelwzils sfxvified ejsc vlii-t°e in this, IxTinit [40 CFR 12141 (1) 0A.
aa. Monitoring, results must tx rejxiiccl on, a -Discharge Monitoring Relx)rt (I)MR) (,'3ee Part If, D� 2) or fornis
provide i ley the D ircctc>r for z I ar inl; results of nionitoring of sludge use or clisl asaai practices,
la. If the 'Pennittee niotaitors any pollutant, niorc fregoxi- tly thm rcnmired by this pen -nit, the results of such
nionit(-wing shall t included in the calculation and of the cltata sul anaitted on the DMR.
Cy. I"vvcrat -fcaar I1our~Re�artira<*
a. The PerrnitteShall rep<)rt to the Diree,.tor or the ;.tppropriate Rexgioraaal Office any noncompliance. that
potentially threatens public health or the: environment, Any information shall Ix, provided oraa ly within 24
hours from the time, the Perr ittec I-xvarne aaww-e of the circa,mstmc~cs. A written srihirnisssion sliaill also be
provided within 5 days of the time, the: Perinittee becomes aNvtiare of the; circ°t sstaaaice-s. The wTitt'
sa.alanaission shall contain a description of the noncompliance, mad its cause; the period of noncornpliaince,
indudiRg exact claates°s and times, and if the nonconipliaarce Naas not lx. n corrwed, the anticipaied time it is
e pmted to continue, and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the
noncompliance HO CFR 12141 (1) (()l.
Version 512009

N P D E S Pert -nit Standard Conditions
11a, e 13 cif' 18
The report shall be provided no later than sixty dayKs' after the end of the calendar or fiscal year, depending upon.
which annit -d period is used for evaluation.
The report shall he sent to:
NCI ICI NR / DWC / Centril File ,
1617 Maail Service Cer to
Raleigh, NC 276 )-1617
PART III
OTHER REQUIREMENTS
ScetionA. Comtrwfion
The PermitteeshA not commence construction of v,<astewater treatment facilities, nor: <idd to the plant's treattrient `
capacity, nor change the treatment process(es) utilized at the treatment plant unless the Division has issued an
Authorization to Construct (AtC) lx=rnut. Issuance of an AtC will not occur until Final Plaris and Specifications for
the proposed construction have beensubmitted by the Pcrmittee ,.and approved by the Division.
Sectionja. ' t o
The Perinitteesliall, upon written notice from the Director, conduct groundwater monitoring s may be required to
determine the cornpfiance of this N PDE S permitted facility with the current Woundvater star darcls.
sectionc. C ofTci `c
The Perainittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe. (40 CI~ It 1 2.42):
. That ;:any activity has occaarrel or will occur- which would result in the discharge, can a routine or frequent
basis, of any toxic pollutant (which is not limited in the permit, if that discharge will exceed the high(st of the
Iollovvng "'notification levels";
0) One hundred micrograms per liter (100 lig/L);
(2) Tvvo hundred micro; ;r irns per liter (00 l-jg/L) for acrolein and acrylonitrile; five hundred m cro rarrLs
per liter (500 lag/L) for 2.4-dinitrophenol and for 2-iaaethyl-4.C)--clir-itroplaenol; and one milligram per liter
0 rag/ L) for intimo ny,
(3) Five times the maximum concentration value reported for that pollutant in the perniit application.
. That any activity has occurred or• will occur which would result in any discharge, on a non -routine or
infrequent IT&sis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the
highest of the; following "notification levels";
(I) Five hundred micro `anis per liter C500 pg/L);
(2) 0tie milli rauu per liter 0 raag./ L,) for antimony;
(3) Tea tinier the maximum concentration value reported for tlxtt polli taut in the permit application.
Section . F vahiation of Wastewater Pbdvae
The Perniittce shall evaluate ail east otter- disposal Atemaitives and pursue the ixnst etivironn entally sound
alternative of the reasonably cost effec~tiue <alternati e;. If the facility is in substantial non -con phance: with the tern),s
;.and condition`s of the PDE perinit or governingrules, r ations or laws the Perna tree shall scabrlut as r art in
such form and detail as required by the Division evaluating these alternatives and a plan of action within 60 clays of
notification by the Division.
SeWonE. ' ` "ty C1
The Permitter, merest notify the. Division at least 90 days prior to the closure of any voasttwater treatment system
covered by this pern-tit The Division may require specific mcwsurcs during deactivation of the system to prevent
adverse impacts to waters of the. State. This perrait cannot be rescinded le any activities requiring this permit
continue at the permittl facility"
Version 512009

NPI) S Permit, Standard Concliticarts
P,q4> 15 of 18
1. Any new introduction of Iatallr.tants into the POTW from, ,an indircr~t discharger, including purnp and
hauled Nv-.t te, which Nvoaild lac° subject to section 301 or .3(y of CWA if it wcre directly clisclaau-gia-ag thcvse
pollutants; and
2. Any sulast<ntial Chang in the volume or character of pollutants lacing; introduced lay an indirect discharger
as influent to that I'O'I W at the: time of issuance of the perrilit.
3. For purpo es of this paragraph, adequate notice sliall include inforn-tition on (1) the quality and c1uitit of
cfl"lctcrat introduced into the POTW, wind (2) my anticipatccl impact that nx-ty re stAt from the Change of the
(1wintity or,cluality of effluent to tat. discharged from the I'O't W
1" Effluent limitations au•e listed in fart I of this f--rinit. Other I oIlutaznts attributable to inputs from industries,
using the nattnicipal systen-i may l present in the Pennittee's discharge,' t such time as sufficient in carnation
becomes available to e:,tartalish lisnitatior s for such l aflutants, this lacrinit may be revised to specify effluent
limitations fear any or all Of scrch tither pcillutants in accordance with lac-:st practical-Ae to lrriolc>; F or miter
equality standards,
. Prohibited Discharges
a. t Hitler net circurnstanc°es shall the ilerriAttoc at teaw introduction ductio of;patlutants or ciisc°harges into the w. ste
treatnaent systerri, or waste collection rystena which cause or contribute to Pass Through or Interference
<as defined in 15A N CA C 21-I.090(} grad 40 C ;F R 403. C4 O CF R 403.5 (rr) (1)l
b Under no c°ircunistancts shaall the Pe raaitte allo-,v' intr(xtuc°tion of the follom4ngg wastes in the v tistc
treatment or waste collection s)stcrn 140 CFII 4035 (b)1a
L Pollutants which create a fire or explosion l az,,trd In the POTW, inducling, but not limited to,
rtstc-strairns vdt a a closed cup flashpcaint of less than 140 cl(Wees Fahrenheit or 60 dcx e ;
Centigrade using the toast rnetho s specified in 40 CFR 261..21;
?. [acallc.tt<uats wlaic°la eattsc corrcasive Structural c3 rr z e to the.. Pam, taut in no cast discharges with
Ialt lc Nvr thwi 5,0, unless the Nvorks is specifically dosigned to aacccar asucatlaate sudI ciisdraar°gees;
3. Solid or viscous pollutants in altiounts which cause obstruction to the flow in the POTW re -,talon);
in I tit erfererac q,
4Any Ixallutant, including, oxygen Glen -finding pollutwits (B D, c1c>) release -gel in a Discharge at as
flo-vv raatc aincl/ cr>r aotlutaartt concentration wWch will cause I nterfcre nce with the. I'OTW;
art Float in amounts which will may iralifbit biologicA activity in the POTW resulting in ftaterference,
but in no cease heat in such quantities that the teniperature at the POTTreatment Plant eac ,ee s
40'C (I()t°F') unless the Division, upon rcquest Of the I'OTW, approves alternate terra . aattrc:
lir sits;
ti Pctrrtoki ni,oil* raonlaic.acic acl able cutting oil, or products off ainci-A tail car e" in y c'aunts that rill
cause interference or pass thrcat� la,
T Pollutants which rc:surlt in the presence of toxic ises, vapors, or funies ,vi hin'the I OTW it as
cluaaiatity that may cause acute worker, hc�Ath and safety Tarot aicxzas,
R Any trucked or hat.ded pollutants, e-cept at discharge e 1ao ints designated lay the I10TW.
c".` The Perraittee shall investipte the statute. of -A (fischarges into the. I'131, includin slog loads arid
other unusual disc] iarge , wliidi have the potential to adversely impact the po-iitiac ,'s Prctrc atn ennt
Prognina. airacl,/or the operation of the I'P
The Pert rtitteshall rclacart such ctiscltua yes into the N 'P to tfie Dircutor or the: appropriate Re�gzic>naal
Office. Any ixafor ration shall be prow clecl orally �xhtliin 24 hours frona the: tinge the Per n-tittee lxcaanc
aware of the circ rnstanccs. A written submission shall also be Nxithin 5days- of the time the
Pernaittee becomes omes awrare of the c ircuna4sUIrIc s. The written sttbrnission shall contain as clesc r"iption of
the clischarge, they investigation into passible sources; the period of the clischarge, including exact cotes
Version 512009

SOC PRIORITY PROJECT:
To:Western NPDES Emit
Surface Water; Protection Section
Attention: Charles Weaver
Date: July 30, 2009
NPDLS STAFF REPORT AND RECOMMENDATIONS
County: Mecklenburg
IVPT)ES Permit No.. NCO0 43 7
PART I - GENERAL INFORMATION
1.
Facility and address. Lee S. Dukes Jr. Water Treatment Plant
7980 Babe Stillwell Farm Road
Huntersville, NC 28078
2.
Date of investigation. July 24, 2009
.
Report prepared by: B. Dee Browder, Environtnental Engineer
4.
Person contacted and telephone number- Terry Crowe, CMU, [phone]
5.
Directions to site: From the jet. of Hwy 73 and Babe Stillwell Farm Road turn left onto
Babe Stillwell Farm Road. The water treatment dil t-is at the end of the road.
6.
Discharge point(s).° Latitude. ,,3' 25` 42"
Longitude. 81 ° 3' 17" t ,
Y
USCS Quad No.: F 15 NW
7.
Receiving stream or affected surface waters. McDowell Creek
a. Classification. DVS -IV
b. River Basin and Subbasin No.: Catawba 030833
C. Describe receiving stream features and pertinent downstream uses: Receiving
stream is 6-8 feet wide and 1 2- 18 inches deep at the time of the inspection.
r.+

-�4-

included.
If you have any questions, please contact me at 704-399-2426 ext. 222.
wine ely,
John C. Huber
Water Treatment Superintendent
CHARLOTTE-MECKLENBURG UTILITIES
Water Treatment Division 5200 Brookshire Boulevard
Charlotte, NC 28216
PH: 704/399-2426
FAX: [phone]

J1,ARJ,0Trff,_
May 28, 2009
Mrs. Dina Sprinkle
NC DENR / DWQ / Point Source Branch
1617 Mail Service Center
Meigh, NC 27699-1617
Subject: NPDES Permit No. NCO0843 87
Sludge Management Plan
Dear Mrs. Sprinkle,
The City of Charlotte, Charlotte Mecklenburg Utility Department has a complete Sludge
Management Plan under permit #W.Q. 0000057. This plan includes the residuals handling
for both the Wastewater Treatment Plants and Water Treatment Plants.
The Sludge Management at the Lee S. Dukesi Water Treatment Plant is as follows:
1. Solids generated from the water clarification process are discharged to gravity
thickener and then discharged to a holding lagoon.
2. Solids generated from backwash water are sent to an equalization basin and then to a
clarifier. Solids go to the thickener and are then discharged to the holding lagoon.
Clarified water goes to the Dechlorination chamber and is then discharged to NPDES
discharge point 001.
3. Solids from the holding lagoon are removed by a contractor (currently Synagro) to be
land applied as liquid. We also have the ability to tank the liquid to a belt press where
is can be pressed and then land applied or taken to a land fill.
4. The contractor must follow the permit #W.Q. 0000057 for solids disposal.
If you have any questions, please contact me at 704-399-2426 ext. 222.
Since
Jo: .Huber
Water Treatment Superintendent
CHARLOTTE-MECKLENBURG UTILITIES
'Water Treatment Division 5200 Brookshire Boulevard
Charlotte, NC 28216
PH: 704/399-2426
FAX: [phone]

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES, Unit
1617 Mail Service Center, Raleigh, KC 27699-1617
NPDES Permit Number NCO084387
If you are completing this form in computer use the TAB key or the up - down arrows to move from one
field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type.
1. Contact Information:
Owner Name Charlotte -Mecklenburg Utilities
Facility Name Lee S. Dukes Jr. Water Treatment Plant
Mailing Address 7980 Babe Stillwell Farm Rd.
City Hunters ville
State / Zip Code NC /28078
Telephone Number [phone]
Fax Number [phone]
e-mail Address [e-mail]
2. Location of facility producing discharge:
Check here if same as above
Street Address or State Road
City
State / Zip Code
County
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name City of Charlotte
Mailing Address 5200 Brookshire Blvd.
city Charlotte
State / Zip Code NC / 28216
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Page 1 of 4 C-WTP 03/05

NFDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
Federal 0 State E] Private ® Public
S. Type of treatment plant.
Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfection)
Q Ion Exchange (Sodium Cycle Cationic ion exchange)
Green Sand Filter (No sodium recharge)
Q Membrane Technology (RO, n ofiltration)
Check here if the treatment process also uses a water softener El
6. Description of sourcewater(s) (i.e. groundwater, surface water)
Lake Norman
7. Describe the treatment process(es) for the raw water.
w water is treated with Potassium Permanganate and Carbon as needed. Aluminum
Sulfate is added at the head works of the plant. The Raw router then parses through
stage flocculation and sedimentation basins. Chlorine is added before the falters. Raw
router is then filtered and lime and fluoride are added. The water is then dosed again with
chlorine and sent to the Ilea ells.
8. Describe the wastewater and the treatment process(es) ' for wastewater generated by the
facility:
Solids are generated from the water treatement process and consist mostly of Alum
sludge. Solids generated from the sedimentation basin are discharged to a gravity
thickener and then discharged to a holding lagoon. Solids generated from backwash
water are discharged to an EQ basin. The solids are then sent to a clairifier. The solids
are then sent to the thickener and then to holding lagoon. Clarified water goes over the
weir at the clairifter through: a dechlorination.,,chamber to the NPDES discharge point.
Solids from the holding lagoon are removed and land applied in accordance with permit
W.Q. 0000 l 7 on a quarterly basis. Land application can be done more frequently if
needed.
9. Number of separate discharge points. 1
Outfall Identification number(s)' Q011
10. Frequency of discharge: Continuous EJ Intermittent
If intermittent:
Days per seek discharge occurs: 7 Duration: 4 Hrs per day
11. Plant design potable flowrate 25.31 MCI?
Backwash or reject flow .197 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude).
McDowell Creek
Page 2 of4 C-WTP 03/ 5

x
13s. Plea
pate
NPD '►S PERMIT APPLICATION - SHORT Ft - WTP
For discharges associated with water treatment plants
se list all water 'treatment additives, including cleaning chemicals, that have the
. tial to be discharged.
am Sulfate, Chlorine, Carbon, Potassium Permanganate, Lime, Fluoride,
Linear P'h s at (formerly Calciquest), Sodium Nisulfite, Polymers, and
x fihiosulte.
14. Is this facility located on Indian country? (check one)
Yes Q No
15. Additional Information:
Provide a schematic of flow through the facility, include flow volumes at paints in
the treatment process, and point of addition of chemicals.
Solids Handling Plan
16• NEW Applicants
Information needed in addition to items 1-1 `:
> New applicants must contact the NCDZNR Customer Service Center.
Was the Customer Service Center contacted? El Yes D No
)01 Analyses of source water collected
s.1 Engineering Alternative Analysis
> Discharges from ion Exchange and Reverse Osmosis plants shall be evaluated using
ter quality model.
17. Applicant Certification
I certify that I am familiar with the information contained in the application; and that to the
best of my knowledge and belief such information is true, complete, and accurate.
John C. Huber Water Trt. Superintendent
Print erne of Per on ng Title
/�)/W 2 2, 00
SigFure of Applica t ate
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan:, or other document files or
required to be maintained under; Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
Page 3 of C-W 03/05

NPDES PERMIT APPLICATION - SHORT FORM - WTP
For discharges associated with 'water treatment plants
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by a fine not to exceed $25,000, or; by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years,; or both.,
for a similar offense.)
Page 4 of 4

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EL 706.87
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24* CLARIFIER EFFLUENT
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REMOVE EXIST PIPE
AND REUSE
WEIR EL 7M01--,
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�ECTIQN 1 '--12* MIN GRAWAAR FILL

A i "it Michael V. nits!.}, Govcrn(w
William G. Russ Jr., Secretary
tj S' North Carolina Department of Environment and Natural RQsources
Alan W. Klimek, P.E. Director
Division of Water Quality
October 25, 2006
Mn John C. Huber ,
Charlotte -heck enburg Utility Department ;
5 100 Brookshire Boulevard a
Charlotte, NC 28216-2551
SUBJECT: Authorization to Construct
A to C No. 084 87AOI'
Charlotte- Mecklenburg Utility Department
Lee S. Dukes WTP
Dechlorination Facilities
Mecklenburg County
Dear Mr, Tuber:
A fast track application for Authorization to Constructdechlorina.tion facilities was
received on October 12, 2006 by the Division. Authorization is hereby granted for the
construction of modifications to the existing Lee S. Dukes WTP, with discharge of treated
wastewater into McDowell Creek in the Catawba River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
.for the construction of the following specific modifications:
Installation of a dechlorination system utilizing sodium bisulfite pursuant to the
.fast track application received.. on October 12, 2006, and in conformity with the:
Minimum Design Criteria for Dechlorinaion Facilities.
This Authorization to 'Construct is issued in accordance with Part 111, Paragraph A of
NPDES Permit No. NCO084387 issued :March 3, 2005, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NCO084387.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by this Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
N0hCarolin<
o
cr l4ff
North Carolina Division of Water Quality 1617 MaiI Service Center Raleigh. NC 27699-1617 Phone [phone] Customer Service
Internet, h2o.enr.state,ne.us 512 N. Salisbury St, Raleigh, NC 27604 FAX [phone]C I-877-623-0749
An Equal OppottunitylAftirmative Action Employer- 500% Recycled110`% Post Consumer Paper

Mr"John C. Huber
October 25, 2006
Palge 2
The I-Aboresville Regional, Office, telephone number [phone], shall be notified at
least forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours frorn 8:00 am. until 5-00 p.m. on Monday through Friday, excluding State
Holidays,
Pursuant, to 15A NCAC 2H .0140, upon completion of construction and prior to operation of
these permitted facilities, the completed Engineering Certification form attached to this permit shall be
Z:�
SUbIllitted to the address provided on the form,
Upon classification of the facility by the Certification Commission, the Permittee shall
ernploy a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
%,vastewater treatment facilities. The operator must hold a certificate of the type and grade at least
c-quivalent to or greater than the classification assigned to the wastewater treatment facilities by
the Certification Commission.
The Pexrnittee most also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
C'lass I facility at least weekly and each Class 11, 111 and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
rnainten,ance of the facility, and must comply with all other conditions of TI 5A:8&0201
A copy of the approved plans and ;pecifications shall be maintained on file by the
Pen-nittee for the life of the facility.
During the constrUCtion of the proposed additions/modifications, the permittee shall
Z-1
continue to properly maintain and operate the existing wastewater ticatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Perl-nit.
You are reminded that it is mandatory for the project to be constructed in accordance
vvidi the North Carolina Sedirrientation Pollution Control Act, and, when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
respon si bil Mies shall be in complying with these Acts.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an en-forcernent action by the Division of Water Quality in accordance
with North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which maybe imposed by
other government acrencies (local, state, and federal) which have jurisdiction.

I oha C. Huber
October 25, 2006
Page 13
If you have any questions or need additional information, please do not hesitate to contact
Cecil G. Madden, Jr., P.E. at telephone number (919) 71-5-6201
Sincerely,
A
.la
y W. lKlimek, P.E,
AR/c-m
C11 C Kent A. Lackey, P.E., Black & Veatch International Co., Charlotte
Mecklenburg County Health Department
Mooresville Regional Office, Surface Water Protection Section
Tcclinical Assistance and CertiFication Unit
Daniel Blaisdell, P.E.
Point Source Branch, NPDES Pro am
Cecil G. Madden, Jr., P,E,
Anna Reed, E.I.
A to C File

A 4L
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins e Freeman
ov rnor Director t
Secretary
June 5, 2009 J U 11 2 01°w=
JOHN C HUBE R
WATER ,��'1MENT` SUPERINTENDENT x i�
CHARLOTTE MECIZ LENBURG UTILITIES �
5200 BROOKSHI F BOULEVARD
CHURL O "E NC 28216
Subject: Receipt ofpermit renewal application
NPDES Permit NCO0843 7
Lee S. Dukes WTP
Mecklenburg County
Dear Mr. Huber.
The NPDES Unit received your permit renewal application on June I, 2009. A member of the NPDES
Unit Neill review your application. They will contact you if additional information is required to complete your
permit renewal. You should expect to receive a draft pertnit approximately 0-45 days before your existing pernut
expires.
If you have any additional questions concerning renewal of the subject permit, please contact Tom Beliuck
at (919) 807- 390
Sincerely,
Dina Sprinkle;
Point Source Branch
cc: CENTRAL FILES
'anal Office/Surface Water Protection
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 . Salisbury St. Raleigh, North Carolina 27604One
Phone. [phone] tFAX.919-807-64921Customer Service: 1-877- 3-6748 NofthC ft in
Internet. www,ncwaterqualfty.org
An Equal Opportunity 1 Affirmative Action Employer ;Vatmallil

Lee S. Dukes Water Treatment Plant
Process Flow Diagram as of 28 May 2009
Callan. Alum Chiodna podymar KMngc Chlorrna :.. Chlorins Fiaur.do .Lime clesiwedl
1
9 MG
Sedimentation Filter
East Module 1 w East Module 1
finished Clearweli High Service To 960
Lake Norman — � Water 9 MG Pump Station Zane
Sedimentation flker
East Module 2 ���>' East Mzrdule 2 !►
Clearwei
3
9 MG
Backwash sodium
Water Bisulfte
! } Polymer :.
s
Sad Basin Clarifier
Residuals EftiueriE DeChtOrinatlon
tp-jkwash
Clarifier Contact To Creek
Chamber
i
Solids
3 Residuals 1
Thickener EgBasinion
_._
Basin
Land Applicatm

Allocco, Marcia
From: Allocco, Marcia
Sent: Tuesday, November 09, 2010 3:00 PM
To: Weaver, Charles; Tracy, Bryn
c: Parker, Michael; Browder, Dee; Bou-ghazale; Samar
Subject: RE; NCO084387
Tracy and Charles,
The engineers use to guesstimate the coordinates so I guess that was off a little. I went into Google Earth and
placed my cursor over the main building at the water plant and here are the coordinates it gage me.
80" 3' 37.51V
I will attach this -mail to the staff report so it gets changed the next time around,
From: Weaver, Charles
Sent: Tuesday, November 09, 2010 2:45 PM
To: Tracy, Bryn
c: Allocco, Marcia
Subject: RE: NCO08438
The outfall coordinates it BINIS were provided by the Mooresville Regional Office. All staff reports going back to 1994
list the same coordinates for the outfall.
if they're wrong, what should the correct ones be?
CHI
From: Tracy, Bryn
Sent: Tuesday, November 09, 2010 7:52 AM
To: Weaver, Charles
Subject: NCO0843 7
t. utfall coordinates are in error; places the facility in RutherfordCounty; should be discharging to
McDowell Creek. fro you have the correct coordinates? Data taken frorn BINI .
Bryn H. Tracy
Sr. Environmental Specialist
t36N/DWG
1621 lls
Raleigh, NC 27699-1621"
r n tr c `ncdenr. >ov
htt , ortal.ncdenr. r web w ' ass bay
9.9-43-44
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

A t Michael F. Easley, Governor
{. Williant C. Ross Jr., Secretary
t North Carolina Department of Environment and Natural Resources
• Alan W. Vdimek, P.E. Director
` Division of Water Quality
01
December 2, 2005
. John C. Huber
Charlotte -Mecklenburg Utilities
5200 Brookshire Boulevard
Charlotte, North Carolina 2521
Subjects NPDES Pennit Modification-N ` e and/or
Ownership Change
Permit NCO084387
LeeS Dukes WIT
Formerly North Mecklenburg
Mecklenburg County
Dear Mr. Huber:
Division personnel have reviewed and approved your request for name change of the subject permit, received on
November 29, 2005. This permit modification titan documents the name change of the above reference facility.
Please find enclosed the revised permit. All other terms and conditions contained in the original pit remain
unchanged and in full effect. This permit modification is issued under the requirements of North Carolina General
Statutes 43-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environtriental
Protection Agency.
If you have any questions concerning this permit modification, please contact the Point Source Branch at (919)
7:3-503, extension 520.
Sin erely,
an W. Klimek, P.E.
CC*. Central Files
..-r ace aAL OFRM
,...
INPDES Unit File
NO(p '0t*
,t
, SECTION
One
Noharolina
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
intemet h2o.enr state.nc.us 512 N. Salisbury St. Raleigh; NC 27604 FAX [phone]-
n Equal Opportunity/Afrimative Action Employer -- 500% Recycl l0% Post Consumer Paper

PERM
t^i T'%TC' ^T T R
Charlotte -Mecklenburg Util
authorized to discharge wastewater fron
Signed this day December 2, 2005.
�IW.imek, P.E , Director
Division vision of Water Quality
By Authority of the Environmental Management Commission

Permit NCO0 4;387
SUPPLEMENT TO PERMIT COVER SHEET
e Charlotte -Mecklenburg Utility Department is hereby` authorized to:
All previous NPDES Permits issued to this facility, whether for operation or discharge are
hereby revoked. As of this permit issuance, any previously issued permit bearing this
number is no longer effective. Therefore, the exclusive authority to operate and discharge
from this facility arises under the permit conditions, requirements, terms, and provisions
`eluded. herein.
. Continue to operate a water treatment plant with a discharge of filter -backwash
wastewater, excess rainwater and supernatant from the alum sludge storage
lagoon. This facility is located at the Lee S Dukes WTP on Babe Stilwell Road
near Hunter ville in Mecklenburg County.
. Discharge from said treatment works at the location specified on the attached
p into McDowell Creek, classified Wa-IVCA waters in the. Catawba River
Basin.

FPemilt NCO084387

\N A Michael F, Easley, Governo
0 William G, Ross Jr., Secretaryci
North Carolina Department of Environment and Natural Resources
7
Alan W. Klimek, P. E, Director
Division of Water Quality
DIVISION OF WATER QUALITY
March 10, 2005
Mr. John Huber
Charlotte -Mecklenburg Utilities
5200 Brookshire Blvd.
Charlotte, No Carolina 28216
Subject: Permit No. NCO084387
North Mecklenburg WTP
Mecklenburg County
Dear Mr. Huber:
Our records indicate that NPICES Permit No. NCO084387 was issued on March 3, 2005
for the discharge of wastewater to the surface waters of the State from your facility. The purpose
of this letter is to advise you of the importance of the Permit and the liabilities in the event of
failure to comply with the terms and conditions of the Permit. If you have not already done so, it
is suggested that you thoroughly read the Permit. Of particular importance is Page 4.
Page 4 sets forth the effluent limitations and monitoring requirements for your discharge.
Your discharge must not exceed any of the limitations set forth. The section headed
"Monitoring Requirements" describes the measurement frequencies, sample types and sampling
locations. Upon commencement of your discharge (or operation), you must initiate the required
The forms, including directions for their completion, and other important information are also
available at httn://h2o.enr.state.ne.us/NPDES/documents.html. It is imperative that all applicable
parts be completed, and the original and one copy be submitted as required.
Please be advised that an annual fee maybe required for your facility; if so, you will
receive a statement from our Raleigh Office. It is imperative that the fee be paid in a timely
manner so as to prevent enforcement action or possible revocation of your permit.
The remaining parts of the Permit set forth definitions, general conditions and special
conditions applicable to the operation of wastewater treatment facilities and/or discharge(s). The
conditions include special reporting requirements in the event of noncompliance, bypasses,
treatment unit/process failures, etc. Also addressed are requirements for a certified wastewater
NortliCarolina XOM.
111,7111rally AM
_---ReDrNR
N. C. Division of Water Quality, Mooresville Regional Office, 610 E. Center Ave, Suite 301, Mooresville NC 28115 [phone] Customer Service
1-877-623-6748

�s and conditi(
rz, P.E.
Protection Regio
A:\NPDESLTR.WQ
k ta316.': Zllia"f.LG1L6"r 1`af:�eL
ratically transferable.
that the Division of
ether party, if
,f the importance of
i63-1699 i
rd to providing y
)ervisor

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Alan W, Klimek, P.E., Director
oc DEPTOr r'"!"RONMENT
March 3, 2005
My, John C. Huber
Chirlotte-Mecklenburg Utilities
5200 Brookshire Boulevard
Charlotte, North Carolina 28216 MhR 0 9 2()05
Subject: Issuance of NPICES Permit NCO084387
North Mecklenburg WTP
Mecklenburg County
Dear Mr. Huber:
Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly,
we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the
U.S. Environmental Protection Agency dated May 9, 1994 (or as subsequently amended).
This final permit includes no major changes from the draft permit sent to you on December 21, 2004. Please make
special notice that this permit includes an effluent limit for Total Residual Chlorine, but this limit will not become
effective until October 1, 2006 (18 months following the effective date of the permit).
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you,
you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this
letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina
General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North
Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to
obtain other permits which may be required by the Division of Water Quality or permits required by the Division of
Land Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be
required. If you have any questions concerning this permit, please contact Bob Sledge at telephone number (919)
733-5083, extension 547,
Sincerely,
ORIGINAL SIGNED W"r
C11 tN A, kNILSON' I
Alan . limek, P.E.
cc. Central Files
Aart tiu
N1,1DES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699.1617
512 N. Salisbury St, Raleigh, North Carolina 27604 One
orthCrolina
Phone: [phone] / FAX [phone] / Internet:: h2o.enr.state.nc.us Na
An Equal Opportunity/Affirmative Action Employer -- 501/1. Recycled/1 0% Post Consumer Paper Natlindil

STATE OF N(
CAROLINA
3_011lf1 lylj.'tIN X "Ju 4.:w INV Jux-,. 1_4 IV X -4 JaNj.." IN I 'VX
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with, the provision 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
Charlotte -Mecklenburg Utility Department
is hereby authorized to discharge wastewater from a facility located at the
North Mecklenburg WTP
7980 Babe Stilwell Road
Huntersville
Mecklenburg County
conditions set forth in Parts 1, 11, 111 and IV hereoc
This permit shall become effective April 1, 2005.
This permit and authorization to discharge shall expire at midnight on February 28, 2010.
Signed this day March 3, 2005.
ORiGINAL SIGNED BY
VUISAN A. WILSON
Alan W. Mlimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

NPDES Pernin Requirenictits
Rage
I of 16
PART 11
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/1\lotith
Samples are collected twice per month with at least ten calendar days between sampling event,,.
.3�Wcck
Samples are collected three tinics, per week on three separate calendar days.
r1tf
Act or "the Act
The Federal Water Pollution Control Act, also known as the Cleats Water Act, as amended, 33 USC 1251, et. seq.
Annual Averave
The arithmetic mean of all "daily dischargvs" of a pollutant measured during the calendar vear. In the case of fecal
colifourn, the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
RWas,
The known diversion of waste streams from any portion of a treatment facility inclu&ig the collection system, which
is not a designed or established or operating mode for the facility.
Ca
lendar
The period from midnight of one day until midt*ght of the next day. However, for purposes of this pern-lit, any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Quarter
One of the following distinct periods: January through March, April through June, July through September, and
October through December.
L-om osite Sa�mle
A sample collected over a 24-hour period by continuous sampling or cotribining grab sainples of at least 100 nil in
such a manner as to result in a total sample representative, of the wastewater discharge during the sample, period. The
Director may desigate the most appropriate method (,specific number and size of aliquots, necessary,, the tinie.
interval between grab samples, etc.) on a case -by -case basis. Samples may be collected inanuaRy or automatically.
Composite samples tilay 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 sing/variable volume: a series of grab samples collected at equal nine intervals over a 24 he
period of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection, or
(3) 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
(4) Constant thue/constant volunte: a series of grab samples of equal volume collected over a 24-hour period at
a constant time interval. This method may only be used in situations where effluent flow rates vary
less than 15 percent. The grab samples shall be taken at intervals of no greater than 20 minutes apart
during any 24-hour period and must be of equal size and of no less than 100 milliliters. Use of this method
requires prior approval by the Director.
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enly spaced over the 24-hour period that are equal in number of hours t
.umber of days. However, the interval between effluent grab samples m<
of samples; less than four during; a 24-Maur sampling period.
measurement
that occurs without interruption throughout the operating; hours of
auallt' except for the infrequent times when there may be no flow or t
ow device.
a pollutant measured during; a calendar day or any 4-hour period thaw
purposes of sampling;. For pollutants measured in units of mass, the '-"dail
the pollutant discharged over the day. 'rhe "daily discharge" couctnt
a -hour sampling period as either a composite sample concentration <
-cted during that period. (40 CCR 122.3)
discharge" during the calendar month.
ing daily sampling shall be sampled 5 out of every i days perweek- unless
lion expects that sampling shall be conducted on weekdays except where'
for any permit parameter(s), that requirement will be so noted on the Effluent Limitations and Monitorn
DWO or "the Division"
The Division of Water Quality, Department of Environment and Natural Resources,
EMC
The North Carolina Environmental Management C ca i; sion.
pacilit�lca;,ure
The cessation of wastewater treatment at a permitted facility, or the cessation of all activities that require
under the NPDES. Completion of facility closure will allow this permit to he rescinded.
Geometric Mean
The Nth root of the, product of the individual values where N = the number of individual values. p'o
calculating the geometric meant, values of "0" (car " [det ctio n level]" shall be considered = 1.
Grab Sam. le
Individual samples of at least100 nil collected over a period of time not exceeding 15 'minutes. Grab sa
collected manually. Grab samples must be representative of the discharge (or the receiving; stream,
samples).
hazardous ,Substance
Any substance designated cinder 40 CFR fart 116 pursuant to Section 311 of the Clean Water Act.
lnstantaneous flow measurement
A measure of flow taken at the time of sampling, when both the sample ;and flow will he representati
discharge.
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Monithlo, Average (concentration hrnit�
The arithmetic mean of all "dailv discharges" of a pollutant measured during the calendar month. In the case of fecal
colifornt, the geometric meanof such discharges.
Permit Issuing ,�hor�i,
The Director of the Division of Water Quality.
Ouarterlv Average (concentration lit 't
'rhe average of all samples taken over a calendar quarter.
Severe nro-mertv- arnage
Substantial physical darnage to property, damage to the treatment facilities which causes then tca 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 t(-,)xic under Section 307(a)(I) of the Clean Water Act.
1!pset
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 deliacedtreatment facilities, inadequate treatment facilities, lack- of preventive
maintenance, or careless or improper operation.
Weeklv Average (concentration limit)
The arith ictic fnean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal
coliftim, the geometric mean of such discharges.
Section B. General Conditions
1. Duty, too Comply
The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation
of the Clean Water Act and is grounds for enforcement action; for permit to nation, revocation and reissuance,
of moditica
a. The Pe
Clean N
section
al of a pennit renewal application [40 CFR 122.4t].
M,
:or t)rohibitions or standards for sewage sludae use or disposal, even if the pertr
modified to it the requirement,
b. The Clean \X7aterAct provides that any person who violates section 301, 302, 306, 307, 308, 318
Act, or am, permit condition or lintitation implementing any such sections in a permit issued i
4021, or any reol-Lurernent imposed in a pretreatment program approved under sections 4022(a)(3'
of the Act, is subject to a civil penalty not to exceed $25,000 per day for each violation. [40 Cl
(2)]
c. the Clean Water Act provides that any person who ngfigenly violates sections 301, 302, 306, 307
405 of the Act, or any condition or Ruination implementing any of such sections in a permit
section 402 of the Act, or any requirement imposed in a pretreatment program approved 1
402(a)(3) or 402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of
imprisonment of not more than 1 year, or both. In the case of a second or subsequent cor,
negligent violation, a person shall be subject to criminal penalties of not more than $50,00
violation, or by imprisonment of not more than 2 rears, or both. [40 CFR 122,41 (a) (2)]
ousn, rnese
cat yet been
� 405 of the
der section
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NPDES Permit I
o bianhiah qPrti'At1'z
ill-
4Iwh
the case of a second or subsequent conviction for a knowing violation, a person shall be subj(
penalties of not more than $100,000 per day of violation, or unprisonment of not more than 6
f40 CFR 122.41 (a) (2)]
c. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act,
condition or lunitation implementing any of such sections in a perntit issued under section 4(
and who knows at that titne that he thereby places another person in inuninent danger of de
bodily injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisc
more than 15 tears, or both. In the case of a second or subsequent conviction for a knowing t
Violation, a person shall be subject to a fine of not more than $500,000 or by imprisomnent of t
30 rears, or both. An orgatireation, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, up
of violating the imminent danger provision, be subject to a fine of not snore than $1,000,000 ani
tip to $2,000,000 for second or subsequent convictions. 140 CFR 122.41 (a) (2)]
f Under state law, a civil penalty of not more than $25,000 per violation may be assessed again
who violates or fails to act in accordance with the terms, conditions, or requirements of a pt
Carolina General Statutes § 143-215.6A]
g. Am, person may be assessed an administrative penalty by the Administrator for violating sect
0
2. Dgit),
The I
violat
[40 C
3. Civil
I
4
f
2
c
I
M
og gate
ve shall take all reasonable steps to minitnize or prevent any discharge or sludge use or
this petn-,tit which has a reasonable likelihood of adversely affecting human health or the cry
!.41 (d)].
Tdou� Substance Lialaili
his permit shall be construed to preclude the institution of any legal action or relieve
ponsibilities, liabilities, or penalties to which the Permittee is or may be subject to unc
. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is r
I damages, such as fish kills, even though the responsibility for effective comp]
uspended.
]z
inc issuance of uns perinu (toes not convey any property rignts in eittier real or person
exclusive pfivileges, nor does it authorize any injury to private property or any invasion of I
any infringement of Federal, State or local laws or regulations 140 CFR 122.41 (g
6. Qnshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore, pl-,
facilities or the undertaking of any work- in any navigable waters.
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7 Severabilit
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 rather circumstances, and the remainder
of this permit„ shall not be affected thereby [NCGS 15OB-231.
S. Du to Provide Information
The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any infc>raation 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 Periittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the
Petmittee mast apply for and obtain a new permit [40 CFR 1 2.41 (b)].
M Ex ration 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 Pe ittee shall submit such information, forms, and
fees as are required by the agency authorized to issue permits no later than 180 days prier to the expiration date.
Any Perinittee 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. Si-onatory Requirements
All applications, reports, or information submitted to the Permit Issuing authority shall be sighed and certified
[40 CFR 122.41
a. All perinit applications shall be signed as follows.
0) 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 either 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 122.2-7].
b. All reports requiired 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 of
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 Perinit Issuing Authority* [40 CFR 122.22]:,
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NPDES Permit Re
c. Changes to authorization: If an authorization under paragraph (b) of this section is no long
because a different individual or position has responsibility for the overall operation of the fac:
togettier witty any reports, information, or applications to be signed
[40 CFR 122.22]
Any person signing a document under paragraphs a. or b. of this see
ification [40 CFR 122.22]:
I
11-1—tig u- tivoolultily v, illim ditu nfipu;uriinunt tur Knowing violarions,-
12. Permit Actions
This permit may be modified, revoked and reissued, or terminated for cause. The filing of a req
Pertnittee for a permit modification, revocation and reissuance, or termination, or a notification
changes or anticipated noncompliance does not stay any permit condition [40 CFR 122.41
13. Permit Modification. Revocation and 12t-1qn-Atr.- rir
c0luaineu in "tic 4v, t-o(le sit Ilederal Kegulations, Parts 122 and 123; Title 15-A of the North Carolina
Administrative Code, Subchapter 2H .0100; and North Carolina General Statute 143-215.1 et. al.
14. Annual Athninistermix 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 2H.0105 (b) (4)
may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of PollutionControls
1. Certified Operator
Upon classification of the permitted facility by the Certification Conu-nission, the Permittee shall employ a
I . W I— --F — ---- — — V— —,u caawax -..4
of the system [15A NCAC 8G.0201].
The ORC of each Class I facility must:
)P, Xlisit the facility at least weekly
� Comply with all other conditions of 15A NCAC 8G.0204.
The ORC of each Class 11, 111 and W facility must:
Visit the facility at least daily, excluding week -ends and holidays
Properly manage and document daily operation and maintenance of the facility
Comply with all other conditions of 15A NCAC 8G.0204.
Once the facility is classified, the Pertnittee shall submit a letter to the Certification Commission designating the
operator in responsible charge:
a. Within 60 calendar days prior to wastewater being introduced into a new system
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NPDES Petinit Requirements
Page 7 of 16
b. Within 120 calendar days of:
Receiving notification of a change in the classification of the system requiring the designation of a
new ORC and back-up ORC
A vacancy in the position of ORC or back-up ORC.
2. Pror Oneration and 'Maintenance.
The Permittee shall at all times provide the operation and maintenance resources necessary to operate the existing
facilities at optimum efficiency. The Pet `tree 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 Pertnittee 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)].
3, Need to Halt or Reduce neat Defense
It shall not be a defense for a Permittee ul an emorcenient action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this pernut [40 CFR 122.41
(C)1_
4h=A�jsi�nof 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 riot subject to the
provisions of Paragraphs b. and c. of this section,
b. Notice [40 CFR, 122.41 (in) (3)]
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 by-pass.
(2) Unanticipated bypass. The. Per trtittee shall submit notice of an unanticipated bypass as required in Part
11. E. 6. (2-hournotice).
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 injutj,, 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 Permittec 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 enforcenient
action against a Pertnittee for a bypass as provided in any current or future system' -wide collection system
pertnit associated with the treatment facility.
(3) The Permit lxsuui g 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.
0) of this section.
Upset,
a. Effect of in upset [40 CFR 122.41 (n) (2)]: An upset constitutes an affitinative defense to an action
brought for noncompliance with such technology based permit effluent limitations if the requirements of
parag7,apla b. of this conolition are met. Nc> determination made during administrative review of claims that
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NI'DES Pen -nit F
noncompliance was caused by upset, and before an action for noncompliance, is final adrx nisi
subject to judicial review.
. Conditions necessary- for a demonstration of upset: A Pernaittee who wishes to e9
affirmative defense of upset shall demonstrate, through properly signed, contemporaneous oiler;
other relevant evidence that.
(1) An upset occurred and that the Pennittee can identify the cause(s) of the upset;
(2) The Pern inee facility was at the time being; properly operated; and
(3) The Pern ntee subnsitted notice of the upset as regti red in fart II. F . 6. (b) (R) of this perxni
(4) The Pertnittee complied with any remedial measures required under fart 11, & 2 of this pern
d. Burden of proof [40 CFR 122.41 (n) { }1: The. Pertnitree seeking to establish the occur
inset has the burden of proof in any enforcement proceedings.
6. Removed SuLstances
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of
shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent
from such materials from entering; waters of the :Mate or navigable waters of the United :hates. T
shall comply with all existing Federal regulations ns governing the disposal of sewage sludge. Upon pro'..
40 CFR Part 503, any permit issued by the Pe n it Issuing Authority for the utilization/disposal of sl
reopened and modified, or revoked and reissued, to incorporate applicable requirements at 40 CF
.ctices.
Section D. Monitoring and Records
L Renresentative Samnlin
Samples collected and measurements taken, as required herein, shall be characteristic of the volume and it
month y Discharge Monitoring Report (13MR) Form (NIR 1, 1.1, 2, 3) or alterna
Director, postmarked no later than the 28th day following; the completed reporting; p
The first DINIR is due on the last dal, of the month following; the issuance of the p'
facility, on the last day- of the month following, the commencement of discharge.
these, and all other reports required herein, shall be submitted to the following addre
NC; DENR / Division of Water Quality ty / Water Natality Secti
ATTENTION: Central Files
1617 Flail Service Center
Raleigh, North Carolina 276 -1617
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Page 9 of Lai
3. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices. 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 expecteddischarge
volumes. Flow measurement devices shall be accurately calibrated at a minimum um 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 fart I
of this pert -nit and based on the manufacturer's pump curves shall not be subject to this requirement.
4. Test Procedures
Test: procedures for the analysis of pollutants shall conform to the ENIC regulations (published pursuant to
NC S 143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant' to
;section 304W, 33 USC 1314, of the Federal eater Pollution Control tact (as emended); and 40 C>'1*R 136; or in
the case of sludge use or disposal, approved udder 40 CFR 136, unless othenvise specified in 40 CFR 503, unless
other test procedures have been specified in this pent it [4O Cla 122.411:
To meet the intent of the monitoring required 1al,; this permit, all test procedures must produce nininnurn'
detection, and reporting levels that are below the permit discharge requirements and all data generated must be
reported dawn to the minumun detection or lower reporting level of the procedure. If no approved methods are
determined capable of achieving mininturn 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 Tamaering
The Clean. Water act 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 as first conviction of such Berson Lander this
paragraph., punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of more
than 4 years, or both [40 CFR 121411.
6. Records Retention
Except for records of monitoring information required by this permit related to the Per 'ttee's sewage sludge
use and disposal activities, which shall be. retained. for a period caf` at least five years (car longer as required by 40
CFR 503), the Pertnittee shall retain records of all monitoring information, including;
all calibration and maintenance records
all original strap 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].
?. Recardin Resaalts
For each measurement or sample taken pursuant to the ret imcments of this permit, the Perinittee shall record
the following information [40 CFR 122.41]:
a. The elate, exact place, and time of sampling or measurements
b. The individuals) who performed the sampling or measurements;
c. The date(s) analyses were perforated;
d. The individual(s) who performed the analyses;
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lues on methods used, and
taalc. ses.
the Director, or an authorized representative (inch
Director), upon the presentation of credentials and
aittee's premises where a regulated facility or a tivi
tinder the conditions of this; permit;
copy, at reasonable tithes, any records that must l
tinges any facilities, equipment (including; monitori
ed or required under this per `t,, and
t reasonable 'tithes, for the purposes of assuring
^an Water Act, any substances or parameters at anv'.,
herein shall be consistent with the: terms and con(
A in this permit more frequently than or at a le
he permit.
notice to the Director as soon as possible of
1 facility [40 CFR 122.41 (l)]. Notice is; required ca l
lition to a permitted facility may meet one of the
during the permit application process or tior reported pursuant to at
. Anticipated Nonciatrt Hance
:antrol c(
modification or revocation and reissuance of the permit to document the, change of ownership.; An
may incorporate ether requirements as may be necessary under the Clean Water act [40 C;fa"lt 122.41
5 Monitoring RWgrts
Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CIhR 122.4'
a. Monitoring; results must be reported on aDischarge Monitoring Report (D ) (See fart 11. D
provided by the Director for reporting results of monitoring) of sludge .rise or disposal practices.
It. 1f the Per 'tree monitors any pollutant more frequently than required by this permit, the re
monitoring shall be included in the calculation and reporting; of the data submitted on the DMR
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6;
a. The Pernintee shall report to the Director or the appropriate Regional Office any not that
potentially threatens public health or the environment. Anv information shall be provided orally witlim 24
hours from the time the Pern-jittee 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 t4O CPR 121410) (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].
7Other Noricoinnhatice
The Permittee shall report all instances of noncomphance not reported under Part 11. E. 5 and 6. of this pectruit at
the time monitoring reports are submitted. The reports shall contain the information listed in Part 11. E. 6. of
this permit [40 CFR 122.41 (1) (7)"Jrt
& Other Information
kXliere the Perrouttec becomes aware that it failed to submit any relevant facts in a pern-lit application, of
submitted incorrect information in a permit application or in any report to the Director, it shall promptly submit
such facts or inforn'tation t4O CFR 122.410) (8)].
9. Noncompliance Notification
The Pernuittee 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
occurrence or first knowledge of the occurrence of any of the following: ' day following the
a. Any occurrence at the water pollution control facility which results in the discharge of sg nificant amounts of
wastes which are abnormal in quantity or characteristic, such as the thunp ing 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 utin 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 directly to receiving
waters 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.
10. AyajLabili = of Re tuts
Except for data detertnined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33
USCG 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices
of the Division of Water Quality. As required by the Act, effluent data shall not be considered confidential.
1,Cnowingh, making any false statement on any such report inay 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.
M PqLalties for l alsirication of Rc scams
The Clean Water Act 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
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NP l-ti f
not more than.. $25,000 per violation, or by imprisonment for not more than two years per
f4O CFR 122.41j.
12. Annual Perfort<ttie e Reasons
which annual period is used for evaluation.
PART III
OTHER REQUIREMENTS
Section A. Consime1j2p
The Pennittee shall not commence c4onstruction of wastewater treatment facilities, nor add to the plant"
capacity, near change the treatment process(es) utilized at the treatment plant unless the Division has issi
Authorization to Construct (AtC) permit. Issuance of an AtC will not occur until Final Plans and Speci
the proposed construction have been submitted by the Per 'ttee and approved by the Division.
Section B. Groundwater Monitorn
'Ihe Peri ittee shall, upon written notice from the Director of the division of eater `duality, conduct g'
monitoring as may be required ed to determine the compliance of this NPDES permitted facility with the
groundwater standards.
Section C. Chan es in Discharges of Toxic Substances
e Permittee shallnotify tifw the Permit Issuing; Authority as soon as it knows or has reason to believe (4
a. That any activity has occurred or will occur which would result in the discharge, on a route
basis, of any toxic pollutant :which is not limited in the permit, if that discharge will exceed the
following "notification levels";
{l) One hundred micrograms Per liter 000 p /L)
(2) Two hundred micrograms per liter (200 ttg/L) for acrolein and acrylonitrile; five hundr€
per liter (500 Rg/L) for 2.4-din trophe of and for 2-methyl-4.6-d' ''trophenol; and one mil
(1 mg/L) for antimony;
() live times the maxinxuna concentration value reported for that pollutant in the permit appl
b. That any activity has occurred or will occur which would result in any discharge, on a r
infrequent basis, of a toxic pollutant which is not limited in the permit, if that discharge e
aac. a k..„a acaaaaa..a„ �ascau a..vaaaaxutoa. it rx?t[vwc€acx 4AistFtl9d
alternative of the reasonably cast effective alternate
and conditions of the NPDES permit or governing
such form and detail as required by the Division e-N
notification by the Division,
Section t �aeili t�Iosur Re urerrterits
The Per ittee must notif, the Division at least 90
covered by this permit. The Division may requite
ted for that pollu
ntal y sound
)Hance with the terms
11 submit a report in
art within 60 clays of
rent ent system
system to prevent
'ersion 612012003

NPDES Pertnit Requirements
Page 13 of 16
adverse impacts to waters of the State. Tbis permit cannot be rescinded while any activities requiring this permit
continue at the permitted facility
PART IV
SPECIAL CONDITIONS FOR MUNCIPAL FACILITIES
Section A. Pub lhigbrLgomwmngeddTreat mmwait !Wkoqtrka,PC1T �tT
All P(')fW,,, must provide adequate notice to the Director of the following:
t Any new introduction of pollutants into the POTW from an indirect discharger 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 POM and (2) any anticipated impact of the change on the quantity or quality
of effluent to be discharged from the POTW.
Section
1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from
industries using the municipal system may be present in the Pertnittee'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.
1 Under no circumstances shall the Permittee allow introduction of the following wastes in the waste
treatment sysfem:
a. Pollutants which create a fire or explosion hazard in the POTVV, 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;
b. Pollutants which will cause corrosive structural damage to the POW, but in no case Discharges
with pl-I lower than 5.0, unless the works is specifically designed to accommodate such Discharges;
C Solid or viscous pollutants in amounts which will cause obstruction to the flow in the PC) INX7
resulting in Interference;
& 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%
C. Heat in amounts which will inhibit biological activity in the PO' IW resulting in Interference, but in
no case heat in such quantities that the temperature at the PO Treatment Plant e\ceeds 40'C
(104'F) unless the Division, upon request of the POTW, approves alternate temperature Innits;
f Petroleum oil, notibiodegradable cutting oil, or products of triineral oil origin in amounts that will
cause interference or pass through;
g. Pollutants which result in the presence of toxic gases, vapor,-,,, or fumes within the POI1X7 in a
quantity that may cause acute worker health and safety problems;
It. Any trucked or hauled pollutants, except it discharge points designated by the P01W.
3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the
Pertnittee to supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to
ensure compliance by the Permittee with all applicable effluent litnitations. Such actions by the Pertnittee
may be necessary regarding some or all of the industries discharging to the municipal system,
4. The Pertnittee shall require any industrial discharges sending influent to the permitted system to meet
Federal Pretreatment Standards promulgated in response to Section 307(,)) of the Act., Prior to accepting
wastewater from any significant industrial user, the Perritittee shall either develop and submit to the
Version 612012003

NPDES Pere
'retreattnent" Program for approval per 15A NCAC 214 .0907(a) or m(
Program per 15A NCAC 2II .0907(b).
t the Pretreatment Program Submittal are an enforceable part of this permit.
:e shall operate its approved pretreatment program in accordance with :Section 402( )(
the Federal Pretreatment Regulations 40 CPI fart 403, the State Pretreatment' R+
.0900, and the legal authorities, policies, procedures, and financial provisions ct
program submission and Division approved modifications there of Such operatic
cited to the implementation cif the following conditions and requirements:
Use Ordinance (SUO)
err ittee shall maintain adequate legal authority to implement its approved pretreatn er
rial Waste Sunmy JXXIS
ernxinee shall update its Industrial Waste :Survey (ID S) to include all users of the s+
t at least once every five rears.
Qhi i'lan
i K5.).
Local limits
lion approval of a Headwc rks Analysis A) a
hvision. Within 180 days of the effective date r
niple ent the prohibitions listed in 40 C FR 403. (a) and (b) and 15A NCAC 2H
x xzu 4.,,..xaxa xxx •,,ixx cxa cxvxx x,: '11111uxx pra.v c..rs.vx ,:. x.c. t.ec x xx xcat xcxxxcx.cc:s, rxtrFLk,'At.rxxztcv exxxxcxeec d"'a atac.a,x;Gtx
>nditions, and comphance schedule; as necessary for the installation of I treatment and control
chnologies to assure that their wastewater discharge will meet all applicable Pretreatment standards and
quire eats. The Pert `ttee shall maintain a current .A location Table, (`) which summarizes the results
t the Headworks Analysis (H A) and the limits from all Industrial user Pretreatment ent Permits JUP).
tted IUP loadings for each parameter cannot exceed the treatment capacity of the PC) as
wtermined by the Ht'A.'
Version 6120 2003

ppPPpo" SOC PRIORITY PROJECT: No
To: Permits and Engineering Unit
Water Quality Section
Attention: Carolyn Bryant
Date: January 19, 2005
NPDES STAFF RE, PORT AND RECOMMENDATIONS
County: Mecklenburg
NPDES Permit No.: NCO084387
MRO No.: 04-138
PART I - GENERAL INFORMATION
1. Facility and address: North Mecklenburg WTP
Charlotte -Mecklenburg Utility Department
5 100 Brookshire Blvd.
Charlotte, N.C. 28216
2. Date of investigation: November 16, 2005
3. Report prepared by: Michael L. Parker, Environmental. Engineer 11
4. Person contacted and telephone number: Ton McIver, WTP Supervisor and ORC (704)
948-6954, ext. 260.
5. Directions to site: From the jet. of Hwy, 73 and SR 2143 (Babe Stillwell Farm Rd.)
southwest of the To of Cornelius, travel east on SR 2143 to the end of the road. The
WTP site is located at the end of SR 2143.
6. Discharge point: Latitude: 350 25'42"
Longitude: 810 53' 17"
Attach a USGS Map Extract and indicate treatment plant site and discharge point on map.
USGS Quad No.: F 15 NW
7. Site size and expansion area consistent with application: Yes. There is ample area
available for expansion, if necessary.
8. Topography (relationship to flood plain included): The WWT facilities that serve the
WTP are not be constructed within the flood plain.
9. Location of nearest dwelling: Approx. 500+ feet from the WWTP site.

Page 'T
03
or affected surface waters: McDowell Creek
ation. W -IV
sin d subb in no. Catawba 03 833
0_
feet wide x 2-6 inche
Phase I`
YY 11", la av
.Actual treatment capacity of current facility (current design capacity). /A
Date(s) and construction activities allowed by previous ATCs issued in the
previous two years: There have been no ATCs issued to this facility in the past
two years.
Description of existing or substantially constructed WWT facilities: The existing
WWT facilities consist of a surge/equalization tank followed by a clarifier, a
gravity thickener, a flaw totalizer, and a sludge storage lagoon.
f: Description of proposed WWT facilities: There are no WWT facilities proposed at
this time.
g. Possible toxic impacts to surface waters: Past DWQ studies have shown WTP
effluents to exhibit toxic characteristics. P E should give some consideration to
including a toxicity testing requirement in the renewal of this permit.
h. Pretreatment Program (P ITWs only). Not Needed.
. Residual handling, and utilization/disposal scheme: Residuals ,generated at this facility are
dewatered on -site and then stared in the storage lagoon until they are land applied by
"ynagro under the terms and'conditions of DWQ permit no. WQ000057.
. Treatment plant classification: Glass 1
4. SIC code(s): 4941 Wastewater ode(s): 21 MTU cod (s); 51003
FART III - OTHER. PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)?' Public monies were used in the construction of this facility.'

Page Three
2. Special monitoring or limitations (including toxicity) requests. None with the exception`
of the toxicity consideration noted in Part 11, No. I(g) above.
. Important SOC/JOC or Compliance Schedule dates: This facility is neither under an Sc C
nor is one being considered at this time.
. Alternative analysis evaluation
a. Spray Irrigation: Insufficient area to handle waste flow.
b. Connect to regional sewer system: The applicant utilizes a nearby Charlotte -
Mecklenburg Utilities (CMU) sewer line as a "backup" to the stream discharge.
The W TP searing the adjacent sewer line has limited capacity, therefore, a
discharge to the sewer line is only used when the permittee is cleaning clarifier
weirs and troughs when effluent quality would most likely exceed permit
limitations. Such being the case, if the WTP is capable of complying with the
effluent limitations set forth by the Division, and a total discharge to the sewer
line' may result in overloading and possibly operational disruption at the WWTP,
then a continued discharge to surface waters is the most viable option.
C. Subsurface; Insufficient area for the amount of wastewater that is generated.
PART IV - EVALUATION AND RECOMMENDATIONS
The applicant, CMU, is requesting the renewal of the subject permit to discharge
wastewater (filter backwash water) from a P located in Mecklenburg County. The WTP was
built with an initial treatment capability of 18.0 MGD with an ultimate design flow of 108 M I
(current treatment capability is 25.3 MG ). There have been no changes to the WWT system
which serves this WTP since the permit was originally issued nor are any proposed in this
renewal.
Pending receipt and approval of the draft permit, it is reco nended'that the permit be
renewed as requested..
Signature of Deport Preparer Date
w> ;
0
Water Quality Regional Supervisor Date
hAdsr\dsrr tnrtn sec . t

04 Michael F. Easley
' } Governor
WNWWilliam G. Ross„Jr., Secretary
North Carolina Department of Environment and Natural Resources
i c Alan W, Klimek, P.E., Director
-
� f isi , catl /Dater Quality
>OK E"'
m
�a June 8, 2004
John C. Huber
Water 1"rea e t Superintendent
5200 Brookshire Blvd.
Charlotte, North Carolina 28216 r . ,
Subject: Receipt ofpe i't renewal application
NPI E i Permit NCO084387
North Mecklenburg - VvVM3
Mecklenburg County
Dear Mr. Huber:
The N DENS Unit received your permit renewal application can June 7, 2004. We need one additional item in
carder to process your pennit renewal:
! Solids handling and disposal. Flow often are solids (sludge) removed from your facility? How are
solids disposed after removal?
A member of the NPL ES Unit will review your application. That staff member will contact you if additional
` forn-tat on is required to complete your permit renewal. You should expect to receive a draft permit approximately
3 1-45 days before your existing permit expires. The requirements in your existing permit will remain in effect
until the permit is renewed. (or the Division takes other action).
If you have any additional questions concerning renewal of the subject pemiit, please contact me at (919)
733-5083, extension 50.
Sincerely,
Carolyn Bryant
Paint Source Branch
cc: CENTRAL FILES
VOES"U!"
t
r
r
N. C. Division of Water Quality ! NPOES Unit Phone. [phone] Fait: (919) 7 719
1617 Mail Service Center. Raleigh, NC 27699-1617 " DENR Customer Service enter: 1800 6 3-7748
Internet: h2o.enr.state.nc.use-mail: Carolyn,[e-mail]

pp"Pp",
NPDES PERMIT APPLICATION - SHORT FORM C-WTP
For discharges associated with conventional water treatment plants
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES 'Unit
1617 Mail Service Center, Raleigh, NC 27699-
Iil' S Permit Number COO
JUN 7 2004
Please ,print or type
1. Contact Informations f....., f - 1 '. t' L
Facility Name North Mecklenburg Water Treatment Plant
Owner Name Charlotte -Mecklenburg Utilities
Street Address 780 Babe Stillwell Read
City Huntersv .l le
State Zip Code NC 2821
Telephone Number (7 0 4) 9 4 8 - 6 9 5 4
Fax Number (7 0 ) 9 8- 7 5 81
e-mail Address [e-mail]
Operator Name Randy Hawkins
Street Address
city Charlotte
State / Zip Code NC 28216
Telephone Number (7 0 4 ) 399-2426 e t 260
2. Location of facility producing discharge:
Facility Name (if different from above)
Street Address or State Read 7980 Babe Stillwell Read
City / ;dip Code Huntrsville NC 28078
County Mecklenburg
3. Standard industrial Classification (SIC) C es: 4 9 41
4. Principalpr ss(es): Conventional "Water Filtration
S. Ownership Status:
Federal State PrivatePublic
S!. Check here if discharge is continuous 10
If not continuous,
Frequency of discharge during the day: Average 4 times per clay
Frequency of discharge during the month (week): 12 ? 8
7. Number of separate discharge paints: 1
8. Description of source water(s) (i.e. ,ground ter or surface ter)
Surface water
Page i of 2 Version o

NPDES PERMIT APPLICATION - SHORT F
For discharges associated with conventional water ti
all Creek
s, construction approvals and/or applications (check
c none if not applicable).
t Number e Pe
Non -Attainment
Ocean Dumping
=Dredge/Fill Permits
.0084382 RCRA
Other
located on Native American lands? (check one,
-S NO
ts, please submit all analyses of source water collected.
nformation contained in the application and that to the best
ormation is true, complete. and accurate.
Water Treatment
little
Page 2 of 2 Version

WA Michael F. Easley
Governor
A724 William G, Ross, Jr., Secretary
R—CDEN—R North Carolina Department of Environmeri�ao 'ffia
>
M'&'Nk0qV'qf Wd(ef
July 24, 2001 JUL 3
Mr. John C. Huber
CMUD
5200 Brookshire Boulevard
Charlotte, North Carolina 28216 nt 'a I;kj
Subject: NPDES Permit Modification
Permit NCO084387
North Mecklenburg WTP
Mecklenburg County
Dear Mr. Huber:
Division personnel received your request to modify the subject permit onjuly 18, 2001. After a review of the
turbidity, data you submitted, the Division does not object to your request. Accordingly, the subject permit has been
modified as follows:
Instream monitoring for turbidity has been deleted and replaced with a turbidity limit of 50 NTU at the
effluent.
Please find enclosed the revised effluent page. The revised page should be inserted into your permit. The old
page may then be discarded. All other terms and conditions contained in the original permit remain unchanged and
... Ir 11 _rlr_ -- - --:. -;—.-A «L- -4r'm--A' r-111;— t---I 1&1-
215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency.
If any parts, measurement frequencies or sampling requirements contained in this permit modification are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days
following receipt of this letter. This request must be a written petition conforming to Chapter 150B of the North
Carolina General Statutes, filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North
Carolina 27699-6714). Unless such demand is made, this decision shall, be final and binding.
If you have any questions concerning this permit modification, please contact Charles Weaver of the NPDES
Unit at [phone], extension 511
Sincerely,
Kerr T. Stevens
CC: Central Files
dOWN400400000NOWN"M
Point Source Compliance Enforcement Unit
NPDES Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer VISIT US ON THE IWERNET @ hftp://h2o.enr.state.ne.us/NPDES

JENT LDUTATIONS AND MOMTORING REQUERE
beginning on the effective date of this permit and lasting until expira
iarge from outfall 00 1. Such discharges shall be Iftnited and monita
umrrs MONITORING REQUII
Total Suspended Residue 30.0 mg/L 45.0 mg/L 21Month Grab Effluent
Settleable Solids 0.1 mVL 02 MVL Weekly Grab Effluent
Turbidity' 50 NTU Weekly Grab Effluent
Iron Weekly Grab Effluent
Total Residual Chlorine --weekly Grab Effluent
- --- - ----- -
Aluminum Weekly Grab Effluent
Footnotes:
1, The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50 NTU. If the
instrearn turbidity. exceeds 50 NTU due to natural background conditions, the discharge cannot cause
turbidity to increase in the receiving stream.
All samples must be collected from a typical discharge event.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

\NA . 7-rchael F. Easley
Governor
William G. Ross, Jr,,SecretarY
7
C0 r North Carolina Department of Environment and Natural Resouroes
Kerr T. Stevens, Director
Division of Water Quality
May 3, 2001
Mr. John C. Huber
CMUD
5 100 Brookshire Blvd.
Charlotte, North Carolina 28216
NP:DES Permit NCO084387
North Mecklenburg ,WTP
Mecklenburg County, NC
Dear Mr. Huber:
Our records indicate that NPDE Permit No, NCO084387 was issued on April 27, 2001
for the discharge of wastewater to the surface waters of the State from your facility. The purpose
of this letter is to advise you of the importance of the Permit and the liabilities in the event of
failure to comply with the terms and conditions of the Permit. If you have not already done so, it
is so( ge sted that you thoroughly read the Permit, Of particular importance are Pages 4 and 5,
Pages 4 and 5 set forth the effluent limitations and monitoring requirements for
your discharge. Your discharge must not exceed any of the limitations set forth. The section
headed "Monitoring Requirements" describes the measurement frequencies, sample types and
sampling locations. Upon commencement of your discharge (or operation), you must initiate the
required monitoring. The monitoring results must be entered on reporting forms furnished or
approved by this Agency. If you have not received these forms, they should be arriving shortly.
If you fail to receive the forms, please contact this Office as quickly as possible. I have enclosed a
sample of the "Effluent" reporting form (DEM Form MR-1), plus instructions for completing the
,form. It is imperative that al —I applicable parts be completed, and the original and one copy be
submitted as required.
Please be advised that an annual -ad nsterin and compliance monitoring fee may be
required for your facility. You will soon be receiving a statement from our Raleigh Office. It is
imperative that the fee be paid in a timely manner so as to prevent enforcement action or possible
revocation of your permit.
NCDEN� )
,ustorner service Mooresville Regional Office, 919 North Main Street, Mooresville, NC 28115 FAX (704PHONE (7D4) 663-1699 663-6040
1 800

the event of
Water Quality rescind the Permit or request that the Division of Water Quality reissue the Permit
to another party, if necessary.
As mentioned previously, the purpose of this letter is to advise you of the importance of
your NPDES Permit. Please read the Permit and contact this Office at 704/663-1699 in
Mooresville of you have any questions or need clarification. We look forward to providing any
assistance.
Sincerely,
D. Rex Gleason, P.E.
Water Quality Regional Supervisor
Enclosure
DRG:dee

C A Michael F. Easley
ON Governor
NC DEPT. OF G. Ross, Jr., Secretary
rMENOR North Carolinad Natural Resources
"EPT S
j ;R4E'V I P, Kerr T. Stevens, Director
vision of Water Quality
April 27, 2001 MAY 0 1 2001
Mr. John C. Huber
CMUD
5100 Brookshire Boulevard
Charlotte, North Carolina 28216
Subject: Issuance of NPDES Permit NCO084387
North Mecklenburg %XTP
Mecklenburg County
Dear Mr. Huber:
Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly,
we are fomarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated May 9, 1994 (or as subsequently amended).
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you,
you have the right to an adjudicatory hearing upon written request thirty thi within I , (30) days following receipt of this
letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina
General Statutes, and filed with the Office of Administrative Hearing-, (6714 Mail Service Center, Raleigh, North
Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain
other permits which may be required by the Division of Water Quality or permits required by the Division of Land
Resources, the Coastal Area Management Act or any other Federal or Local governmental'permit that may be
required,
If you have any questions concerning this permit, please contact Charles Weaver at telephone number (919) 733-
5083, extension 511
Sincerely,
ORIGINAL SIGNED BY
SEISM A, WILSON
Kerr T. Stevens
cc: Central Files
1 in:
"rM NPIDL"Unwit
Point Source Compliance Enforcement Unit
N. C. Division of Water Quality / NPDES Unit Phone: [phone]
1617 Mail Service Center, Raleigh, NC 27699-1617 lax: [phone]
Internet: h2o.enr,state.nc.us DENR Customer Service Center. 1800 623-7748

Perr °t NC O08438
STATE OF NORTH CAROLINA
DEPARTMENT TENT OF ENVIRONMENT D NATURAL RESOURCES
DIVISION ICON OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance pliance th the provision of North Carolina General Statute 143-1.1, either lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended, the
Charlotte -Mecklenburg Utility Department
is herebyauthorized to discharge wastewater from a facility located at the
North Mecklenburg VVTP
0 Babe Stilwell Road
Hunter ville
Mecklenburg County
to receiving waters designated as McDowell Creek in the Catawba River has'
in accordance with effluent limitations, monitoring requirements, and ether
conditions set forth in Parts It II, III and IV hereof.
This permit shall become effective June 1, 2001.
This permit it and authorization to discharge shall expire at midnight on February 28, 2005.
Signed this day April. 27, 2001,
ORIGINAL SIGNED BY
StJSAN A. WILSON
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

SUPPLEMENT TO PERM,
:arlotte-Mecklenburg Utility l epe

� _. :�-�. .�.,, �� =� •' .. revs ., � ;�'
2115
4
0
f p
.�„ �/' spa �� ` �� (� �' '� *�`G:/7�'a"�'.' '�'•�:"" �
f
—='• c, 'y
/�; ,.,� '• .. � F• � � per �,,,�-•��
} 4 y
et
5'
,)uad F1 5NWFacility
O 8 38
.tjtttude:35"25'4 ,r a �:
,on 'tude: 81"53'17" Location
CMUD North
,ire- Chas: 'S-CI CA Mecklenburg fP
'11b asin:_30833
:ecciving Strew. r McDowell Creel North rth

Footnotes:
I . The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50 NTU- If the
instream turbidity exceeds 50 NTU due to natural background conditions, the discharge cannot cause
turbidity to increase in the receiving stream.
All samples must be collected from a typical discharge event.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

PART
L The pmuttee shall comply with Final Effluent Lunitations, specified for discharges in . accordance
with the following
P Final Effluent Limitations by the effective date of the perinit unless
specified below.
2. Pem-dttee shall at all tinus provide the operation and maintmancenecessary operate the
hicilities, at optimum c i
3" No later than 14 calendar days following a date identified in above` of
the perntittee, shall it either a report of progress or, in the case of specific actions being
required by identified dates, a written notice of comphance, or noncomptianm In the latter case,
the notice ude the cause of noncompliance, any remedial actions' takert, and the
probability of meeting the next schedule requirernents.

Part 11
Page 8 of I
. Need to Halt or Reduce not a_Qo_mse
It shall not be,a defense for a pernu*ttee 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.
. m fT a t Fa 'lities
aDefinitions
( I) -Bypass- means the known diversion of waste streams from any portion of a treatment
facility including collection system, which is not a designed or established or operating
ode for the facility.
2) re property damage" " ns 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 does not mean economic toss caused by delays in
production.
b. Bypass not exceeding li tations.
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 e not subject to the provisions of Paragraphs c. and e . of this section.
c. Notice
(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; cluding an
evaluation of the anticipated quality and affect of the bypas&
(2) Unanticipated bypass. The perzrdttee shall submit notice of an unanticipated
required in Part IL E. 6. of this permit. (24 hour notice).
d. Prohibition of Bypass
I) Bypass is prohibitedand Pe t Issuing Authority y enforcement action against
a permittee .for bypass, unl a
(A) Bypass was unavoidable voidable to, prevent loss of life, personal injury of 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. ition is not ' satisfied if adequate backup equipment should
have installed in the exercise of reasonable engineering judgment to prevent a bypass
which occurred during normal periods of equipment downtime or preventive maintenance;
d
(C) e permittee submitted notices as required under Paragraph c. of this section.'
(2) The Permit Issuing Authority may approve an anticipated bypass, after considering its
adverse affects, if the P it Issuing Authority determines that it will meet the three
conditions listed above in Paragraph d* (l) of this section.

Part 11
Page 12 of 14
SECTION Ea tJR R ME
I Chanin ha
Ali discharges authorized 1 be consistent with the terms and conditions of this permit.
e discharge of any pollutant identified "in this permit more frequently than or at a level in
of that authorized shall constitute a violation of the it.
. Planned Chan
e pem-dttee shall give notice to the Director as soon as possible of any planned physical
alterations or additions to the permitted facility& Notice is required only when:
a. 7be alteration or addition to a permitted facility.may meet one of the criteria for determining
whether a "facility is a new source in 40 CFR fart 122.2 (b); or
b. The alteration or addition could significantly change the nature or increase the ,quantity of
pollutants discharged. is notification applies to pollutants which are subject neither to
effluent limitations in the permit, nor to notification requirements under 40 CPR hart 122.42 (a)
(I).
c. The alteration or addition results in a significant change in the per itt 's sludge use or
disposal practices, and such alternation, 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 Anticivated Noncornoliam'
e permittee shall give advance noticeto the Director of any,planned changes `in the permitted
facility or activity which may result in noncompliance th permit requirements.
4. ns.
This permit is not transferable to;any person,except after notice to the Director. The Director may
require modification or revocation and reissuance of the pertnittee and incorporate such other
requirements as may be necessary under the dean Water Act.
S. MoniMrin_Z R
Monitoring results shall be reported at the intervals specified elsewhere in this permit.
a. Monitoring ults must be reported on a Discharge Monitoring Report (DMR) (Sce Part 11. D. 2
of this pern-dt) or forrns provided by the Director for reporting results of morutonng of sludge use
or disposal practices.,
. If the permittee monitors, any pollutant more frequently than required by the permit, using test
procedures specified in Part 11, D. 4. of this permit or in the case of sludge use or disposal,
approved der 40 CFR 503, or as specified in this permit, the results of this monitoring shall be
eluded in the calculation and reporting of the data submitted in the DMR.
c. Calculations for all limitations which require averaging of measurements shall utilize an
arithmetic n unless otherwise specified by the Director in the permit.

Part II
Page 14 of 14
Persons reporting such occurrences by telephone shall also file a written report <in letter form within
5 days following first knowledge of the occurrence.
10. Availabilitv of Renorts
Except for data detern-dned 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 to shall be available for
public inspection at the offices of the Division of Water Quality. As required by the Act, effluent
data shall not be considered confidential. Knowingly making any false statement on any such
report my result in the imposition of criminal penalties as provided for in NCGS 143-2151(b)(2) or
in Section 309 of the Federal Act
11. Penalties for Falsification of &2_orts
The Clean Water Act 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
noncomphance shall, upon conviction, be punished by a fine of not more than $10= per violation,
or by imprisonment for not more than two years per violation, or by both.

SOC PRIORITY PROJECT: No
To: Permits and Engineering Unit
Water Quality Section
.Attention: Charles Weaver
Date: March 8 24 1
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Mecklenburg
NPDES Permit No.: NC O08438'7
O No.: QI 24
PART I - GENERAL INFORMATION
1. Facility and Address: North Mecklenburg P
Charlotte -Mecklenburg Utility Dept.
51 0 Brookshire Blvd.
Charlotte, N.C. 28216
2 Date of Investigation: February 23, 2001
. Report Prepared By: Michael L. Parker, Environmental. Engineer 11
4. :Person Contacted and Telephone Number: Frank Ellington, WTP Supervisor and ORt
(704) 48-6 54,ext. 260.
5. Directions to Site: From the jet. of Hwy. 7l SR 2143 (Babe Stillwell Farm Rd.
southwest of the Town of Cornelius, travel east on SR 2143 to the end of the road. The
WTP site is located at the end of SR 2141
o. Discharge Point(s), List for all discharge Points: -
Latitude: 350 25' 42"
Longitude: 1 ° 53' 1'7"
Attach a USGS Map Extract and indicate treatment plant site and discharge point on map.
USES Quad No.: F 1`5 NW
7. Site sire and expansion area consistent v4th application: Yes. There is ample area
available for expansion, if necessary.
8. Topography (relationship to flood plain ° eluded): The WWT facilities that serve the
WT'P will not be constructed `thin the flood plain.
. Location of Nearest Dwelling: Approx. 500+ feet from the WWTP site.

t
2.
1
4�
Phase I* Plime II" Phase III*
U. YY naL is ut%, ;,uLi vin Fvi-uuLL%,u %,"F"vx%y. - kw j-x
C. Actual treatment capacity of current facility (current design capacity): N/A
d. Date(s) and construction activities allowed by previous ATCs issued in the
previous two years: N/A
e. Description of existing or substantially constructed WWT facilities: The existing
WWT facilities consist of a surge/equalization tank followed by a clarifier, a
gravity thickener, a flow totalizer, and a sludge storage lagoon.
f, Description of proposed WVVT facilities: There are no WWT facilities proposed at
this time.
9. Possible toxic impacts to surface waters: Past DWQ studies have shown WTP
effluents to exhibit toxic characteristics, ME should give some consideration to
including a toxicity testing requirement in the renewal oft is permit.
h. Pretreatment Program (POTWs only): Not Needed.
Residual handling and utilization/disposal scheme: Residuals generated at this facility are
dewatered on -site and then stored in the storage lagoon until they can either be.Lajid
applied or taken to an approved landfill.
Treatment Plant Classification: Class I
SIC Code(s): 4941 Wastewater Code(s): 21 MTU Code(s): 51003
MT III - OTHER PERTINENT INFORMATION
Is this facility being constructed with Cocoon Grant Funds or are any public monies
involved (municipals only)? Public monies were used in the construction of this facility.

of the toxicity consideration, noted in Part IL No. 1 (g) above.
3. important SE CI or Compliance Schedule dates: N/A
4. Alternative Analysis Evaluation
a. Spray Irrigation: Insufficient area to handle to flow.
b. Connect to regional sewer system: The applicant has indicated that discharging to
a nearby CMUD sewer is to be a "'backup" to a stream discharge. The WWTP
serving the adjacent sewer line has little remaining capacity (less than 0.200
MGD), although an expansion is underway. If the WTP is capable of complying
with the effluent limitations set forth by the Division, and the discharge to the
f sewer line might cause overloading of the WWTP (as well as possibly disrupting
V; gq treatment at the VAVT?), then a continued discharge to surface waters is the most
viable option.
C. Subsurface: Insufficient area for the amount of discharge.
PART IV - EVALUATION AND RECOMMENDATIONS
The applicant, CMUD, is requesting the renewal of the subject permit to discharge
wastewater (filter backwash water) from a WTP located in Mecklenburg County. The WTP was
built with an initial flow (treatment capability) of 0.0 MGD with an ultimate design flow of 108
MGD. There have been no changes to the WWT system which serves this WTP since the permit
was originally issued nor are any proposed in this renewal.
Pending receipt and approval of the WLA. it is recommended that the Permit be renewed
as requested.
7
Signature of Report Prep arcr Date
Xv -
Water Quality Regional Supervisor Date
h:\dst\dsrO I \nrthmeck.wtp

i !
State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality � T
Michael F. Easley, Governor `
William G. Ross, Jr., Secretary NCDENR
Kerr T. Stevens, Director
NORTH CArrcaUNA DF-PARTmNT OF
ENVIRONMENT AND NAT F FACES
February 1, 2001 T m f
Mr. John Huber
CMUD-North Mecklenburg WTP FEB 16
5100 Brookshire Boulevard
Charlotte, North Carolina 28216 a°T• Cz Ftt
. r tia TURAL RESOURCES
Subject: NPDES Permit Renewal Application
Permit NCO084387
CMUD - North Mecklenburg WTP
Mecklenburg County
Dear Mr. Huber:
The NPDES Unit received your permit renewal application on January 23 2001. Thank you for submitting
this package.
The permit renewal for this facility will be assigned to a :member of the NPDES Unit staff. That staff
member will contact you if further information is needed to complete the permit renewal. Please note that
the NPDES Unit has several vacant positions. This staff shortage has lasted for over a year and is delaying
all permit renewals. Our remaining permit writers are currently; reviewing Authorizations to Construct,
speculative limit requests,; major permit modifications and 201 plan, updates ahead of permit renewals. This
is necessary due to a variety of factors, including mandatory deadlines in the statutes which govern our
program.
If this staff shortage delays reissuance of NCO084387 the existing requirements` in your permit will remain
in effect until the permit is renewed (or the Division takes either action). We appreciate your patience and
understanding while we operate with a severely depleted staff. If you have any additional questions`
concerning renewal of the subject pern-tit, please contact cne at (919) 733- 08 , extension 520,
Sincerely,
��a ,
Valery Stephens
Point Source "Unit
cc.
NPDES File
1617 hail Service Center, Raleigh, North Carolina 27699.1617 919 733-5083, extension 520 (fax) 919 73 -0719
VISIT US ON THE INTERNET 0 httpl/h2o.enr,state,ne.us/NPDES Valery. tephens ncmail.net

CIRRUYYFE,u
!1 JAN 2 3 2001
January 19, 2001
LD -
P�U61
,IR -,WAfER QUA�1,
0� 6 B X�
Mr. Charles H. Weaver, Jr.
NC DEHNR
Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh NC 27699-1617
Subject: NPDES Permit No. NCO084387
North Mecklenburg Water Treatment Plant
Mecklenburg County
Dear Mr. Weaver.
In accordance with our permit we are requesting renewal 180 days prior to our
expiration date of July 31, 2001. Enclosed is our NPDES Permit Application -
Short Form C for the renewal of the subject permit.
If you have any questions, please contact me at 704-399-2426 ext. 222.
Si erely,
'YJ n C. Huber
Water Treatment Superintendent
cc: File
Water Treatment 5200 Brookshire Boulevard Charlotte, NC 28216 704/399-2426
Charlotte -Mecklenburg Utility Department

PPPF'PP' XPDES PERMIT APPLICATION - SHORT FORM C
For manufacturing or commercial facilities with a discharge <1 MGD (or WTPs)
N. C. Department of Environment and Natural Resources
Division ©f Water Quality I NP OES unit
1617 Mail Service Center, Raleigh, NC 276"-1617
!North Carolina NP©►ES Permit Number NCC?O J �
I. Applicant and facility producing discharge Please print or type
A. Name
B. Mailing address of applicant:
Street addre s<
City ` County_, A' `ee&Ze& r�
Mate , " . Zip Mode , . ;? /'
TelephoneNumber ( 7
Fax Number ( 7.04 }
e-mail address
C. Location of facility:
Street 11,14kQ.
itr °f County cr`t'c^
State ': � Zip Code pl�"'
Telephone Number (' j( I ,
. Standard Industrial Classification (SIC) (
Number of employ s:
r
4. Principal product(s) produced: ?e)47, Ida el-
IJ
Principal raw material(} nsumed 2 l
. Principal pros (es); a •- .fir~ 1
? «WAfiER OUALIT
6. Amount of principal proutict'ptouuvea or1raw material consumed POINT SOURCE BRANC
List 1 is amounts consumed an units of Productionj
Product Produced or Raw Material Consumed Product Produced or Raw Material Consumed
AVM CF r P i
Cia ,r
per Month
per Year
0 0 }
7. Check here if discharge occurs all year or
Circle the month(s) in which dischargeoccurs: January February March April
May June July August September October November December
Days per week dischargeoccurs:--
el

ppppop
NPDES PERMIT APPLICATION - SHORT
For manufacturingor commercial facilities with a discharge c 1 MGD (or W'TPs)
. Type of wastewater discharged to surface waters only (check as applicable).
Discharge per operating day Flow Volume treated before discharging
ALLONS PER OPERATING DAY) PI. R ENI
Sanitary - daily average
ling water. etc. - daily av e �,,
Pr ter - daily eve . e � �,
M mum per operating day for
total discharge (all types)c'
. if any of the types of wastewater identified in item s (either treated or untreated) are discharged to places
ether than surface waters, record the amount(s) discharged be)
A. Municipal sewer system -- '" d
B. Underground well Agpd
C. Septic tank pd
D. Evaporation lagoon or pond pd
E. Other, s if)t
10. Number of separate discharge points: ,
11. Name of'receiving stream(s):' rJ ,
12. Does your discharge contain or is it possible for your discharge to contain one or more of the following
substances as a result of your operations, activities, or processes? Circle all that apply. =
tuminum ammonia beryllium cadmium chromium c orrne (residua!
copper cyanide lead mercury nickel oil and grease
phenols selenium zinc None of the above
l certify that l am familiar with the Information contained In the application and that to the best of my
knowledge and belief such 'Information Is true, complete, and accurate.
Printed name of Person Signing Title
Sign re of Applicant
41—YIDte
North Carolina Gemal Statue' 143- 1 . (b ) provides that Any person knowingly makes any false statement representation, or certification in
any application, record, report, plan or other document files or required to be maintained under Article 21 or regulations of the Environmental
Management Commission implementing that Article, or who falsifies, tampers with, or knowingly Inaccurate any recording or monitoring device or
met required to be rated or maintained underArticle 21 or regulations of the Environmental Me tint Commission implementing that Article,
shall be guilty of a misdemeanor punish' by a'flne not to exceed $10,000, or by imprisonment not to exceed six months, or by boft
Dona *4s

.,rii-.,�
StAtlh'Xl
w .
a
U�• ^^.�.�. *.tee, «.
i
Hcc�_71
r
Gie"iwd P
77
u t\r
ROAD CLASSIFICATION SCALE aflt
PRIMARY HgG4 WAY UGHT•DUTY ROAD, HARD? OR 0 1 MILE
KAM SURFACE ■IM IMPROVED SURFACE
SECONDARY HIGHWAY 0 7000 FEET
HARDSUAFACE UNIMPROVED ROAD
0 1 KILOMETER
Latitude -1525A2L Longitude 81053'17*1 Elm
Map # F15NW Sub -basin 03-08-33 CONTOUR INTERVAL 10 FEET
Stream Class S-1V
QUAD LOCATION MUD N. Mecklenburg TP
Discharge Class MLlnll�:ll�al NCt�C}84387
Receiving Strum McDowell Creek
Mecklenburg County
Design 0 0.70 MGD Permit expires 7 11 1 VVTP

J 1 ,d 5+.Y
January 19, 2001
r. Charles H. Weaver, Jr.
C DENR
Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh NC 27699-1617
Subject: NPDES Permit No. NCO084 87
Sludge Management Plan
Dear Mr. Weavers
The City of Charlotte, Charlotte Mecklenburg Utility Department has a complete
Sludge Management Plan under permit .Q. 0000057. This plan includes the
residuals handling for bath the Wastewater Treatment Plants and Water Treatment
Plants.
The Sludge Management at the Forth Mecklenburg Water Treatment Plant is as
follows.
1. Solids generated from the water clarification process are discharged to
gravity thickener then discharged to a holding lagoon.
. Solids generated from backwash water are clarified and solids go to gravity
thickener, then discharged to a holding lagoon. Clarified water goes to the NPDES
discharge paint.
:3. Solids from the holding lagoon are removed by a contractor to be land applied
as liquid or belt pressed on site to be land applied or taken to approved landfill.
4. The contractor must follow the permit #W Q. 0000057 for solids disposal.
If you have any questions, please contact me at 704- 9-2426 east. 222.
SEC.
(�'gtj
Jer
Water Treatment Superintendent
File
Water Treatment 5200 Brookshire Boulevard Charlotte, NC 28216 7 41 9-242
Charlotte -Me klenb rcg Utility Department

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P.O Box 29535, Raleigh, North Carolina [phone] Telephone (919)733- a83 FAX [phone]
n Equal Opportunity Affirmative Action Employer 50% recycled t 10% post -consumer paper

Permit No. NCO084387
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL_ RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
PQLLUIANI QjKHARGE_1_ELLMjNAT1ON SYEEMA
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards
d regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal 'Water Pollution Control Act, as amended,
Charlotte -Mecklenburg Utility Department
is hereby authorized to discharge wastewater- from a facility located at
North Mecklenburg WTP
7980 Babe Stillwell Farm' Road
Hunterviile
Mecklenburg County
to receiving waters designated as McDowell Creek in the Catawba, River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts
1, 11, and III hereof.
The permit shall became effective August 1, 1996.
This permit and the authorization to discharge shall expire at midnight on July 31, 2001,
Signed this day June 14, 1996.
Original Signed By
David A. Goodrich
A. Preston Howard, Jr, P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission

Permit No. NCC 843 7
SUPPLEMENT TO PERMIT COVER SHEET
Charlotte -Mecklenburg; Utility Department
horized to:
ite wastewater treatment facilities (when construction is completed) consisting of a
.,aw.,.. .x ia::, a. V a,.+ctvv....czcxxx vr::vxx x. c xxx a�.vtb ,
Hunter viIle, Mecklenburg County (See fart: III of this Permit),and
. Discharge from said treatment works at the location specified on the attached reap into McDowell
Creek which is classified Class S-IV waters in the Catawba River Basin.

r'
FF
.
Siaiaon
,k -,
}
100
100
1j ��
10
J
it
vz
`
ROAD CLASSIFICATION SCALE 1: 000
PRIMARYaIG~ EdOW-D TY ROAD, HARD OR 0 � 1 MIL
HARD FACE" 11 IMPROVED SURFACE
SECONDARY HG AY 700
SURFACE0 FEET
HARD :, `i MPROVED ROAD Ream
Latitude _2E25AXLongitude 81 °83'17"
Map # FISNW Sub -basin 03-08-33 CONTOUR INTERVAL 10 FEET
Stream Class VAS -IV QUAD u LOCATION
Discharge Class . ii�iG l t�11 / N. Mecklenburg WTP
NCO084387
Receiving Stream MCDowell Creek -----Mecklenburg County
Design 0 0.70 M D Permit expires 7/3 /01 VVTP`

outfall(s) serial numl er 00l. Such discharges shall be limited and monitored by the >ermittee as specified below:
i nL__Q her t rC ti Qlj_qhteM Lirrait t n ttit ri t r--g .�
+_ it _rits
v 4t. it W'a nt_
*vA r t e
M_Rv,g. t qii Max MQ+q, Avg. QO 1_1Y _ a fi M
T _usatign
Flow Weekly
Estimate
E
Total Suspended Solids 30.0 m /l 45.0 mr / ,2/Month
Grab
E
Settleable solids 01 m l/ 1 0.2 m l/ l Weekly
Grab
E
Turbidity Weekly
Grab
U,D
Aluminum— Weekly
Grab
E
Iron Weekly
Grab
Total residual Chlorine Weekly
Grab
E
Sample locations: F - Effluent, U - Upstream, D - Downstream
** The discharge shall not. cause the turbidity of the receiving water to exceed 50 NTU. if the turbidity exceeds these levels due to
natural
background conditions, the discharge level cannot cause any increase in the turbidity in the receiving water,
*** if alum is used for flocculation.
All samples collected should he o ii representative discharge.
e pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample,.
There skull be no discharge of floating solids or visible foam in ether than trace amounts.

I. The permittee shall comply with Final Effluent Limitationsspecified for discharges in
accordance with the following schedule:
Permittee shall comply with Final Effluent Limitations y the effective date of the permit unless
specified below.
2. P shall at times vide the operation d maintenance necessaryto to the
existing facilities at optimum efficiency.
rt
probability of meeting the next schedule requirements.

PART IV
A. st pay the ' us ° g d milli nit
drys sf being bill by the Uivsian. tQ pay the in a ly ncr in
ce `th 1SA N .t?lt?5ih)i4� y this ..si+n "fiats 'nn ter
sake the
200D copies +f this pubUc document van printed at
cost of .2B

..
PP
State of North Caroling
Department of Environment,71'1'1'1'11
Health and Natural Resources 4
Division of Environmental Management
James B. Hunt,Jr., Governor 1
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
o February 1, 1996
� L
p Mr, Jahn C. Huber
3
Charlotte-i%r�ta tTtility, Department E15WH i �
5200 Br kshir' Boulevard
Charlotte, North Carolina 28216
Subject: Receipt of NPIES Permit Application
Permit No. NCO084387
North Mecklenburg VYIP
Mecklenburg County
Dear Mr.Huber:
The Division acknowledges receipt of your DE permit it application, Short Form , in
triplicate and a check (#518644) for 50 received on January 9, 1996.
Be aware that the Division's regional office, copied below, must provide
recommendations from the RegionalSupervisor for this project prior to final action by the
Division.
I am by copy of this letter, requesting that our regional Office prepare a Staff Report
containing recommendations regarding this discharge. This application has been assigned
to me for .review. If you have any questions, I can be contacted at (919)-733-508 ,
extension 518.
Sincerely,
,f{ C
L. Cabe
Environmental,Engineer
cc:
Permits =Engmeeri!g'Unit
B.0, Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal opportunity Affirmative Action Employer 50% recycled/ 1 % post - consumer paper

pppppp�
N. C. DEPARTMENT 7F ENVIRONMENT, AL , AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT, P. 0. BOX 29535, RALEIGH, NC 27626-0535
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
APPLICATION FOR PERMIT TO DISCHARGE a SHORT FORM C
To be filed only by persons engaged in manufacturing and mining
Do t attempt to complete this forin before reading accompanying instructions
Please print or type
1. Name, address, location, d telephone number of facility prod " dl r
Charlotte-Meeclenburc Uti 4.tlr 1
A. Li
B. Mailing address.
1. S add 200 Brookshire Blvd,.
2. City Charlotte 3. State No3
4. Meoklenburcl 5. zfp 28
C. Location:
1. Street 7980 Babe Stillwell rell Farm 3
2. City Fiunterville 3. t
4. State No r b r Q i n a 28078
T. Telephone No. 4 - 9 --2 4 2
Area
Code
L t (CIS U )
t MWM )
Ana
-JNMW'1 P)
nburcr
. SIC
(Leave bl )
3. Number of employees­-_-2 0
If all your waste is discharged into a publicly owned waste treatment facility and to the best of your knowledge you are not
required to obtain a discharge permit, proceed to item 4. Otherwise proceed directly to item: 5.
4. If you: meet the condition stated above, check here and supply the information asked for below. After completing
these ite please catnplete ` date; title, d si e bl s beicaw d r fo to the proper reviewing
office without completing the remainder of the form.
A. Name of crg ati le for recei ' g waste
B. Facility receiving waste.
2. Street ad
3. City 4.County_
. State - 6.
. ®Trincipal product, raw material (Check
6. .pip Conventional Water Treatment
7. Maximum amount of principal product produced or raw material consumer Mr ELeck one
�t
1-99 100-1 9 200-999 500-999 1000-4999 5000-9999 10,000 50,000 or
Basis 49,999 Moe
1 2 3 4 5 7 S
A. Liar
B. Month
. Year
. Maximum amount of principal product produced or raw material consumer, reported in item 7, above, is measured in
(Check one)
A. []pounds & [] tons C. [] barrels D. []bushels
E. square feet F. [:] gallons G. [] pieces or units R o r, s ify , j D qallons
per day
it

91 (a) Check here if discharge occurs all year or
(b) Check the month(s) discharge occurs:
1. []January 2. []February 3. []March 4. []April 5.
[]May 6 [] June
7. 0 July 8. El August 9. E] September 10. [:] October
11. El November
12. [] December
(c) Check how may days per week- 1. [:] 1 1 E] 2-3 3
[-] 4-5 4. &
10. Types of waste water discharged to surface waters drily (check as applicable).
Discharge per operating -day-
Flow, gallons per operating day Volume treated be re discha
(2=ent
A. ga-r'u"tary, daily average
B. Z7371ing water,- etc. -daily average*
86,400
100
-r.—Process water, dally average
4881400
100
D. Maxim per o era day or
um
total I
all !v2es)
*i i..sc arge rom chillers. wasWaterresiduals process u
11. If any of the three types of waste water identified in item 10, either treated or untreated, are clischarged to pl
other an surface waters, check below as applicable.
A. Municipal sewer system gpd
B. Underground well Qnd
C Septic tank -gpd
DEvaporation lagoon or pond------------gpd
E.
12. Number of separate discharge points:
A. [21 W []2-3 C []4-5 D. 6 or more
14. Name of receiving water or water: McDowell Creek
I i-vluly uLat I autLauuuau WILIt LLL"I LV
such information is true, complete, and accurate.
John C. Huber
Printed name of Pe Signing
Water Treatment Superintendent
Title
1/19/96
Date Application Sine
SioWure of Applicant
Degiaty of a misciemeanorgrusname Dy a n
bo . (18U.&C., ro ides a purw
years, or both, for a similar offe=)

Permit No. NCO084387
S1
7980 Babe Stillwell E
Huntersville
Mecklenburg
,ective January 1, 1995
Ms Mew: ►. •*�
OLINA
l® NATURAL RESOURCES
MANAGEMENT
)NDMTW
acute 143-15.1,
1 by the North Carolina Environmental
ntrol Act, as amended,
)epanment
ated at
rp
Road
f
ft River Basin
to .-A r.!U[w os%+
OrieInal Signed By
A. Preston Howard, Jr., P.E., Director
Division. of Environmental Management
ByAuthority of the Environmental Management Cc

S'l
ha
l nburg Count (See Pirt
III of this P t), and
Pennit No. NCO084387
R SBEET
tmnt
vv,K* wins -it la irk >3+J8d16w AC. %—xaaa TT 4j-a.,;, WCLV%Ila ILI A4 iM+Q.LK YY t3 4%4vvl L al)UL.

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OPAT��`
mv

During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfull(s) serial number 001. Such discharges shah be limited and monitored by the permittee as specified below:
t nn
a Units -1120s1w Measurement M « amve
x Mon._ n. P-MM mall
Flow weekly Estimate E
Total Suspended Solids 30.0 mg/1 45.0 mg/1 2/Month grab E
Settleable Solids O A m l /! 0.2 m l/ l Weekly Grub E
Turbidity * Weekly Grab U,l
Aluminum*** Weekly Grab E
Iron Weekly Grab E
Total Residual Chlorine Weekly Grab E
Sample locations: E - Effluent, U - Upstream, U - Downstream
* The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU. If the turbidity exceeds these levels due to natural
background conditions, the discharge level cannot cause any increase in the 'turbidity in the receiving water.
*** If alum is used for flocculation.
All samples collected should be of a representative discharge.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shalt be no discharge of floating solids or visible foam in other than trace amounts.

ied below.
,I
cent Limitations specified for discharges in
tations by the effective date of the permit unless
ion and maintenance necessary to operate the
existing tacmues, at optimurn ethciency
P
required by identified dates, a written notice of compliance or noncompliance. In the latter "
case, the notice shah incline the cause of noncompliance, any remedial actions taken, and the
probability of meeting the next schedule 'requirements.

Part 11
Page 1 of 14
PART II
STANDARD CONDITIONS ONS FOR NPDES PERMITS
T e Director of the Division of Environmental Management.
e Division of Environanental Management, Department of Environment,` Health and
Resources.
rein means the North Carolina Environmental Management Commission.
ission.
F
eral Water Pollution Control .Act, also known as the Clean Water .Act, as amended, 33
1 of the permit
. r# a a • .e . »a a r. a s a a
e ': r

PART HI
OTHER REQUIREMENTS
Fj
f Petroleum oil, nonbi egradable cutting oil, or products of mineral oil origin in
amounts that will cause interference or pass through,
g. Pollutants which result in the presence of toxic gases, vapors, or fumes within the
PO'IW in a quantity that may cause acute worker health and safety problems;
h. Any trucked or hauled pollutants, except at discharge points designated by the
POTW.
3. With regard to the effluent requirements listed in Part I of this it, it may be necess fo
r
the permittee to supplement the requirements of the Federal Pretreatment Standards 40 FR,
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.

w. v�r awws Ve+Mnti+n tW+.� MY VY"11^1Yw1 H'�L 11T
JJLG

No. NCO08437
rization to t. onsrruct
eklenburg WTP
fiber 30, 1994
classification assigned to the wastewater treatment facilities by the Certification Commission, The
Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with
the conditions of Title 15 , Chapter 8A, .0202. The ORC of the facility must visit each Class 1 facility at
least weekly and each Class 11,111, and Its facility at least daily, excluding weekends and holidays, and
must properly manage and document daily operation and maintenance of the facility and must comply with
all other conditions of Title 15A, Chapter 8A, .0202. Once the facility is classified, the Permittee must
submit a letter to the Certification Commission which designates the operator in responsible charge within
thirty days after the wastewater treatment facilities are Clip± complete.
A coley of the approved plans and specifications shall be maintained on fide by the Perm`Permittee for the
life of the facility,
The Operational Agreement between the Permittee and the Environmental Management
Commission is incorporated herein by reference and is a condition of this Permit. Noncompliance with the
terms of the {operational Agreement shall subject the Permittee to all sanctions provided by G. S. 1 -
215.6 for violation of or failure to act in accordance with the terms and conditions of this Permit.
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Pe tree to an enforcement action by the Division of Environmental Management in accordance with
North Carolina General Statute 43-215.6A to 143a-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying
with any and all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Jeanette Powell at telephone number (19) 'i w
5083, extension 537.
Sincerely,
A. Preston Howard, Jr. P.E.
Mecklenburg County Health Department
re itle Regional OfIi Quality
Training Certification Unit
Facilities Assessment Unit

Permit No. NC O0843
Autho ° tion to Construct
N. Mecklenburg WTP
December 30, 1994
Page 3
n `n `s ification
I,as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full` time) the construction of the
project, , for the
Project NameLocation
Permittee, hereby state that, to the best of my abilities, dui care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
;Signature Registration No.
Date

pate: October
AUTHORIZATION 'T1
NPIDEB PEI
REPORT AND RECO]
County: Me]
MRO No.: 94-
Permit No. Ni
PART I - GENERAL INFORMATION
1. Facility and Address: CMUD-Ni
510 B
Ch rlo
�d Discharge Point(,.,
le: 35* 5' 42"
ev
BCC APR I OR I TY PROJECT: Not
ell
1, 199
CONSTRUCT
MIT
MENDATION
1 enburg
1.2
0084387
rth Mecklenburg WTP
ookshi re Boulevard
te, N.C. 2821:8
August 29, 1994
. Parker, Environ. En r. II
Number: Brent Reuss, Black
.1st for All Discharge Points:
on ltude`. 81® 53' 17"
indicate treatment facility
corres ona r-o svr ,-� rmir-T-ea ;cascnar e poinT.5.
USG8 Quad No.: F 15 NW
8. Site size and expansion area consistent with application?
Yes.
7. Topography (relationship to flood plain included): The WTP
will not he constructed in the flood plain.
8. Location of Nearest Dwelling: None within = 200 feet of the
site;.
PART II -- DESCRIPTION ION OF DISCHARGE AND TREATMENT WORKS
1. Existing Treatment Facility
a. Current permitted capacity: N/A.
h. Date(s) and construction activities allowed by previous
ATCs issued in the previous two (2) years:NSA.

pp�
ge Two
C. Actual treatment capacity of the current facility
(design volume): N/A.
d. Description of existing or substantially constructed
WATT facilities: N/A.
Type of Proposed Treatment Facility: The applicant proposes
--� %*� % J��J 'J
addition,
storage
3. Residuals
a. if I
WQO
Resi
Tel;
4. Treatment
sheet):
5. SIC Code(
r�
r1iter Dacxwasn ww'r raciii'��ie5 con5i5L.Lug uL a
alization basin followed by polymer and bisulfite
a clarifier, dual gravity thickeners and a sludge
basin.
Handling and Uti"lization/,Disposal Scheme:
and applied, please specify DEM Permit No
O.
0057.
duals Contractor: Wheelabrator Systems
phone No. 704-542-0937.
Plant Classification (attached completed rating
Class I
s): > 1
=r Code (s): 21
fitment Unit Code: 51003
�ortant SOC/JOC or Compliance Schedule Dates; N/A
: - EVALUATION AND RECOMMENDATIONS
o sampling cnducted by 1
wirpaL ;.Ilmllt' V1 r'ilv "' i, Q il e i1 " a 4 r 1. V ' ir .; """'L sal .
near the junction with Mountain Island Lake, 2-3 miles bel
the proposed WTP site.
Pending a technical review and approval by P&E, it is
re
cce` that an ATC be issued.
signature of Report Preparer Dat
0 Water Quality Regional Supervisor 4D

August 23, 1994
Forrest
,lenburg LTtil%y Dept. ,
Lire Blvd, .a
" 21'a
25 100A Subject. Application Number AC0084387
Authorization to Construct Request
� g North Mecklenburg WTP
dolt t c , of jI
ut Mecklenburg County
est.
[phone], extension 537.
Sincerely,
,
t-6:
David A. C"iret?drih
NPDES Supervisor
c: -
Brent Reuss, Black and Veatch
Permit File AC0084387
P.O. Box 29635, Raleigh, North Carolina 27626- 635 Telephone 91-"733-6083 E 19-73 3-9919
An Equal Opportunity Affirmative Action Employer SO*/* recycled/ 10% post -consumer paper

STATE OF NOF
Charlotte -Mecklenburg Utilil
North MMecklenburi
7980 Babe Stillwell F
Huntersvll
Meklenburcy Co
Permit No. NCO084387
UNA
C.
� EMENT t IRON
NATUR
THE OCT
MOORESVILLE REGIONAL OFFICE
Mute >$ 4:3-1.1,
I by the North Carolina Environmental
itrol Act, as amended,
ear ent
.ted at
oad'
ba River Basin
'ective
anrvr-
A. PrestonVN'Jr., P.E. Director
Division of ental 1I aement
y A uthoritnvironmental Managrem i

Pernift No. NCO084387
SUPPLEMENT TO PERMIT COVER SHEET '
Charlotte -Mecklenburg Utility 'Department
!red to:
iio a contract for construction of a wastewater treatment facility, and
a outlet into McDowell Creek, and
Ill of this Permit), and

2
f( f
25t
t�

A. (). EF17LUENT LIMIT' ATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO084387
During the period beginning oil the effective (title ofthe permit and lasting until expiration, tile Permillee is authorized to discharge froni
outf,all(s) serial number 001. Such discharges shall be limited and monitored by the PCrMiLteC as specified below:
Effluent Characteristic Pf—schAi(Le milatiqn- Monitoring— Re
Lbs/dav Qrra-s � �ec i f y MeAsurement aamRjs * S Amp I e
Mari. Av_q. Daily Max —Mon. Avg,.` DAjly Max. _Freq—uency Ty-pe location
Flow Weekly Estimate E
Total Suspended Solids 30.0 mg/I 45,0 mg/I 2/Month Grab E
Settleable Solids 0.1 MI/I 0.2 ml/l Weekly Grab E
Turbidity Weekly Grab U,D
Aluminum— Weekly Grab E
Iron Weekly Grab E
Total Residual Chlorine Weekly Grab E
* Sample locations: E - Effluent, U - Upstream, D - Downstream
**The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU, If the turbidity exceeds these levels due to natural
background conditions, the discharge level cannot cause any increase in the turbidity in the receiving water,
*** If alum is used for flocculation.
All samples collected should be of a representative discharge.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foarn in other than trace amounts.

.z
SOC PRIORITY PROJECT: No
To: Permits and Engineering Unit
Water Quality Section
Attention: Jeannette Briggs
Date: September 1, 1994
NPDES STAFF REPORT AND 'RECOMMENDATIONS
County: Mecklenburg
NPDES Permit;.No. NCO084387
MRO No.: 4-18
PART I - GENERAL INFORMATION
1. Facility and Address: North Mecklenburg WTP
Charlotte -Mecklenburg Utility Dept.
5100 Brookshire Blvd.
Charlotte;, N.C. 21
. Date of Investigation: August 2, 1994
. Report Prepared By: Michael L. Parlor, Environ. Engr. II
. Person Contacted and Telephone Number: Brent Reuss, Jeff
Coggin, Jennifer Beau 704 5488461.
5. Directions to Site. From the jct. of Hwy. 73 and SR 2143
(Babe Stillwell Farm Rd.) southwest of the Town of
Cornelius, travel east on SR 2143 to the end of the road.
The WTP site is located at the end of SR 2143.
6. Discharge Point(s), List for all discharge Points: -
Latitude: 350 25, 4211
Longitudes 810 53' 1711
Attach a USCS Map Extract and indicate treatment plant site
and discharge point on map.
USES Quad No.: F 15
7. Site size and expansion area consistent with application:
Yea. There is ample area available for expansion,; if
necessary.
8. Topography (relationship to flood plain included): The WWT
facilities that will serve the WTP will not be constructed
within the flood plain.
9. Location of Nearest Dwellings Approx. 500+ feet from the
WWTP site.

Page Two
10. Receiving Stream or Affected Surface Waters: McDowell. Creek
. Classification: -IV
. River Basin and Subbasin No.: Catawba 030833
C. Describe receiving stream features and pertinent
downstream uses: Flaw observed at the proposed paint
of discharge. The area is generally rural with one
significant discharger located .0 miles downstream
(NC0036277). The stream channel was 3-5 feet wide x 2-6
inches deep.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
Phase I* Phase II* Phase III*
1. a. Volume of Wastewater. 0.700 MGD 2.100 MGD 4.200 MGD
#Flow is based on all filters being 'backwashed in one
day.
b. What is the current permitted capacity. N/A
C. Actual treatment capacity of current facility (current
design capacity): N/A
d.; Date(s) and construction activities allowed by previews
ACs .issued in the previous two years: NA
e. Description of existing or substantially constructed
T facilities: There are no existing WWT facilities.
f. Description of proposed WWT facilities: The applicant
proposes to construct WWT facilities consisting of a
surge/equalization basin followed by polymer and
bisulfite-addition, a clarifier,, dual gravity
thickeners and a sludge storage lagoon. Dewatering
facilities are also planned in the future.
g. Passible toxic impacts to surface waters. Past DM
studies have shown WTP effluents to exhibit toxic
characteristics. The TSB should give some consideration
to including a toxicity testing requirement when
promulgating the WA.
h. Pretreatment Program (POTW only): Not Needed.
2. Residual handling and utilization/disposal scheme: Residuals
generated at this facility will be dewatered on -site and
then stored in the storage lagoon until they can be hand
applied.
. Treatment Plant Classification.. Less than 5 points; no
rating (include rating sheet). Class I
. SC Coie(s) : 4941
Wastewater ode ( ) 2
. MTU Co e(s): 51003

Page Three
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction grant
Funds or are any public monies involved (municipals only)?
Public monies will be used in the construction of this
facility.
2. Special monitoring or limitations (including toxicity)
requests. None with the exception of the toxicity
consideration noted in Part II, No. l(g) above.
. Important SOC JOC or Compliance Schedule dates: N/A
. Alternative Analysis Evaluation
a. Spray Irrigation: Insufficient area to handle waste
flow.
b. Connect to regional sewer system: The applicant has
indicated that discharging to a nearby CMUD sewer is to
be a "backup" to a stream discharge. The WWTP serving
the adjacent sewer line has little remaining capacity
(less than 0.400 MCD), although an expansion is being
planned. If the WTP is capable of complying with the
effluent limitations set forth by the Division, and the
discharge to the sewer line; would exacerbate existing
treatment capacity, then a discharge to surface waters
is the most viable option.
C. Subsurface: Insufficient area.
PART I - EVALUATION AND RECOMMENDATIONS
The applicant, #MUD, is proposing to discharge wastewater
(filter backwash water) from a WTP located in Mecklenburg County.
The 'WTP 'will be built to treat an initial flog (treatment
capability) of 18.0 MGD of water with an ultimate design flow of
08 MOD
Although an alternative to a discharge exists at this site,
limitedhydraulic capacity precludes the use of the existing
sewer line as a;"primary" means of wastewater disposal. This
Office concurs with the applicant's decision to discharge to
surface waters and, pending promulgation and approval of the WLA,
recommends that an NPDES Permit be issued.
Signature o Report Prepaer Date
6'
Water Qual y Regional perviscr Date

ite of North Carolina
t� I Y
PV Health and Natural Resources
es Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary .�
t Preston Howard, Jr., I .E_ Director r NA4 ENT Fit,ALT ,
14ATURAL RE' SOURCES
MY110KwrAt NAXAGFXENT
August 9, 1994
Henry L. Forrest, Assistant Director Subject: NPDES Permit Application
Charlotte -Mecklenburg Utility Department NPDES Permit; No.NCO084 87
5100 Brookshire Blvd.
Charlotte, N 2816 North Mecklenburg `P
Dear Mr. Forrest : Mecklenburg County
This is to acknowledge receipt of the following documents can July 27, 1994:`
Application Form
Engineering Proposal (fear proposed control facilities),
Request for permit renewal,
Application Processing Fee of $ 00.00,
Engineering Economics Alternatives Analysis,
Local Government S cgnof f ,
Source Redu.cticn. and Recycling,
Interba.sinTransfer,
Other Preliminary Design study, site plan, topographic location znap,
r
The items checked below are heeded before review can begin:
Application Form
Engineering proposal (see attachment),
Application Processing Fee of
Delegation of Authority (see attached)
Biocide Sheet ( see attached)
Engineering, Economics Alternatives Analysis,
Focal Government. Sicgnoff,
Source Reduction and. Recycling,
Interbasi.n Transfer,
Other
RO. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer recycled/ 1 post -consumer paper

f the application is not made complete within thirty (30) days, it will be
returned to you and may be resubmitted when complete.
This application his been assigned to Jeanette Briggs
(919/733-5 3) of our Permits Unit for review. �u wa e a �r�se o any
comments recommendations, questions or other information necessary for the
review of the application.
am, by copy of this letter, requesting that our Regional: office
Supervisor prepare a staff report and recommendations regarding this
discharge. If you have any questions regarding this applications,
please contact the 'review person listed above.
Sincerely,
oleen� Sullins, P.E.

NORTH CAROLINA DEPT. OF NATURAL RESOURCES AND COMMNITYDEVELOPKENT
DIVISION OF IRO NTAL MANAGMENT, P.O. BOX 27687, RALEIGH, NC 763 -&-'
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
APPLICATION FOR PERMIT TO DISCHARGE • SHORT FORM C aPi>t1 Tl r� Utii3ER
AGENCY C� .� M
USE DATE RECEIVED
To be filed only by persons engaged in manufacturing and mining -/
TAR MO. DAY
too not attempt to com plete this farm before reading accompanying instructions �r
Please print or type
I* Raw, 'address oat % n aVa , i I t 1 i}l yc fort i1 ng{ g rge
. !tame'
B. Railing address
1. street address 100 Brookshire Boulevard CMUU
2. City Charlotte t 3.:State North Carcil i na
. County Mecklenbura S. ZIP 26216
C. Location, s
1. street 760 Babe Stillwell Farm (NP
. city Hunt rs ill 3, County M cklonburn
. Stale
D. Telephone No,
Area
Code
2. SIC
(Leave blank)
3. Number of employees 20
If all your waste is discharged into a publicly owned waste treatment facility h
and to the best of your knowledge you are not required to obtain a discharge
Permit, proceed to item 4. Otherwise proceed directly to item
4. if you'meet the condition stated above, check here D and supply the information
asked for below, After completing these it s Please Complete the date, title, w' and signature blocks below and return this form to the proper reviewing office
without completing the remainder of the form,
A. Rame of organization responsible for receiving waste
B. Facility receiving waste.
1. Name
2. Street address
. City 4. County
S. State
6« 1IP
. 0 Principal product, Craw material (Check one)
+. Principal process Conventional water treatment
i. Maxi amount of principal product produced or raw material Consumed per (Checkone)
Amount
Basis 1-99 100-199, 200-499 00.9 9 tO O• 5000- 10 000. $0,000
4999 999 49,999 or more
(l1 {21 {3} .(4) (5)
cal ((}
B. Montt,
E. Year
PREvt EQI'rkCyW MSAY �E t3SE`n tsWTra. w..waas...... ._

-AW*
SUPPLEMENT TO NPDES APPLICATION
I. General Information
A. Facility Name and Location:
Charlotte -Mecklenburg Utility Department
North Mecklenburg Water Treatment Plant
Mecklenburg County, North Carolina
7980 Babe Stillwell Farm Road
Huntersville, NC 28078
Report Preparer's Name and Address:
Brent M. Reuss, Black & Veatch
NC P.E. #19518 lie
8604 Cliff Cameron Drive, Suite 164
Charlotte, NC 28269
[phone]
B. Description of Proposed Discharge Facilities:
The proposed North Mecklenburg Water Treatment Plant is
designed to utilize conventional treatment (i.e., coagulation,
flocculation, sedimentation, and filtration) for an initial
18 million gallons per day (mgd) with ultimate expansion
capacity to treat 108 mgd. A wash water and residuals treatment
process has been designed to pretreat the spent wash water
produced during the filter backwashing process. The wash water
treatment process consists of steps to remove solids and
dechlorinate prior to discharge through an 18 inch pipe into
McDowell Creek or through a 24 inch pipe into a nearby
sanitary sewer. Facilities in the wash water treatment process
consist of an equalization basin, clarifier, residuals thickener, and
thickened residuals storage lagoon. Space has been reserved on
the treatment plant site for a future dewatering building to house
belt filter press equipment. Refer to the attached site plan for
layout of the water treatment plant and wash water and residuals
treatment facilities.
072294
f3f:')

}
C. Description of Project Served by the WWTP:
This item is not applicable since the wash water and residuals
treatment facilities serve only the North Mecklenburg Water
Treatment Plant. No sanitary or other waste discharge is treated
in the wash water treatment process.
D. Description of flans for Phased Development:
The wash water equalization basin, clarifiers, and: residuals
thickeners have been sized for an initial plant capacity of
54 rnd. When the water treatment plant is expended beyond
54 md, expansion of the wash water and residuals facilities will
also be required. Since the initial water treatment plant capacity
is only 18 m d, this corresponds to an average wash water
facilities discharge quantity of 488,400 gallons per day.
il. Evaluation of Environmental Feasibilit of ischar e Alternatives
111. Cost Estimation and Comparison
Refer to the attached Technical Memorandum No. 7, "Wash Water and
Residuals Handling and Disposal Evaluation and Facilities Plan," for detailed
discussion and coast estimates of the discharge alternatives.
072294

NORTH MECKL.ENBURG WATER TREATMENT PLANT
TREATMENT PLANT
PRELIMINARY DESIGN STUDY
Technical Memorandum No.7
Wash Water and Residuals Handling and Disposal
Evaluation and Facilities Plan
Prepared for
Charlotte -Mecklenburg Utility Department
r,
r
W�
awe A
Prepared by
Black &'Veatch
Charlotte, North Carolina
Project 19729.119
July 7, 1993

£ 1>
Technical Memorandum No.7
Wash Water and Residuals Handling and Disposal
Evaluation and Facilities Plan
Executive Summary
Recommended Facilities. This technical memorandum provides an evaluation
and description of the preliminary design criteria for the wash water and residuals
handling and disposal facilities for the North Mecklenburg Water 'Treatment Plant.
e recommended wash water and :residuals handling and disposal facilities are
summarized in Table 7-1. A schematic of the recommended facilities is shown in
Figure -, and the site plan is shownin Figure 7-.
Table 7-1
Recommended` Wash Water and Residuals
Handling and Disposal Facilities
Wash Water
• Surge Basin
• Clarifier with Conventional Clarification Equipment
Residuals
•Two Gravity Thickeners
• Earthen Lagoon
Residuals Pumping Station
• Polymer and Sodium Bisulfate FeedSystem
• Trucking Loading Station
070693 TM7-1

Probable Construction Cost. The probable 'construction casts of: the
recommended facilities are summarized below:
Wash Water $1,640,000
Residuals 1680 000
Total $3,320,000
These costs include 10 percent contingency and 15 percent EIA. Detailed
breakdown do of capital, 20-year present worth O&M, 0-year salvage value, and total
0-year present worth costs are presented in Section C.

A. Introduction
This'memorandum provides an evaluation and description of the preliminary
design criteria for the wash water and residuals handling and disposal facilities at the
North :Mecklenburg Water Treatment Plant. Background information for this
memorandum appears in technical memoranda issued earlier, including.
Alum. Mudge Facilities Technical Memorandum No. 3, Residuals and Wash
Water Characterization.
Alum Mudge Facilities Technical Memorandum No , Residuals
:Management Alternatives Development.
Alum Sludge Facilities "Technical Memorandum No. 5, Pilot Testing Results
and Evaluations.
Alum Sludge Facilities Technical Memorandum No. 6, :Evaluation of
Alternatives.
Alum Sludge Facilities Technical Memorandum No. 7, Residuals
Management Facilities Flan.
Water Treatment Plant Technical Memorandum No. 5, Process Component
:Evaluation and Design Criteria.
B. Residuals Quantification
Alum Sludge Technical Memorandum No. , :Residuals and Wash Water
Characterization., projected future quantities of wash water and residuals for the
North :Mecklenburg WTP. The wash water quantities were based on 2 percent of the
plant flow, and the residuals quantities were based on historical data from
Franklin WTP. The projected quantities have been updated to reflect the
North :Mecklenburg Water Treatment Plant proposed layout and operation. These
quantities are summarized in 'Table "-2.
C. Evaluation of Alternatives
Economic and noneconomic criteria were used to evaluate each of the wash
water and residuals handling and disposal alternatives. The following sections provide
detailed discussions of the economic and noneconomic analyses, as well as a summary
ary
of the conclusions and recommendations. Residual dewatcring and management
alternatives have been evaluated, and recommendations have been presented in Alum
Sludge Facilities Technical Memorandum No. 6, Evaluation of Alternatives, : and
Alum Sludge 'Technical Memorandum No. 7, Residuals Management Facilities Plan.
0706 TM7-3

t
Table -2
Wash Water and Residuals Quantification
Item initial
Intennediate
Ultimate
Plant resin Capacity
2
I d 18
54
108
Wash Water Production
Per ) ilter(l), gpd 175,000
175,000
175,000
Avggpd 350,000'
1,05000
2,100,000
M t d 7002000
2100000
4,200,000
Filter -to -Waste
Per Filter (4), gpd 46,850
46 850
46,850
Avg) gpd 93,700
281100
5,200
62
M cs3 d 187,400
562 20O
1 124 400
Decant from Thickener
Avg, gpd ; 58,280
174,830
349,650
d 75180
225,550
451,100
Belt Filter Press(10)
Filtrate, gpd -
26,200
52,400
Wash Water, d
28,800
59 600
Residual Production
Avg), Ib/d 1,080
3,240
6,480
MaxMonth(6), lb/d 1,393
4,180
8,360
Maxlea (7) Ib/ 2 090
6,270
12,540
Flow tc Thickener
vg(s gp 64)750
M Cs5
194,250
388,500
d 83 30
250,6001
501 150
ic�d residuals Production
.Avg , 6,470
19,410
8,80
M ` Mont' (6)( ); d 8,350
MaxIda
25,050
507100
1.2'530
37,580
75,150
() Assume flow rate of 25.2 mgc for 10 minutes (36-inch rise rate).
(2) Half of the filters backwashed in one day.
(3) All filters backwashed in one day.
(4) Assume flow rate of 4 g /sf for 15 minutes. CMUD has indicated that the
current filter -to -waste flow rate in 4 gpmsf for 5-10 minutes.
(5)Assume 90 pounds per million gallons, using average flow rate.
(6) The average daily production during month of maximum residuals production
is computed as ninetieth etieth percentile of maximum
residuals
production at
average flow rate.
(7) Ninetieth percentile of maximum residual production at maximum flow rate.
(s) Assume 0.2 percent solids.
(9) Assume 2.0 percent solids.
(10) Assume 6 hour per day operation, 5 days per week.
070693 TM7-4

nd►ling and Disposal
as which flaw to the wash water handling facilities include
�� 1 �A�a.,.. 4 -caste water, thickener decant, and future belt filter press
ate and wash water. These flows will be referred to as wash water throughout the
winder of this memorandum.
Nash water can be handled and disposed of by the following fourmethods:
and discharge to the sewer.
• Treat and return to the head of the plant.
Treat and discharge to McDowell Creek.
• Treat and discharge to :Lae Norman.
• Treat and land apply.
�d in the following section.
111111411
1. Wash Water h
Treated waste stre,,
at alternatives are shown in figure 7-1 and are
rge to Sewer. At various tines during a filter
ds concentration is in excess of 250 mg%Lr
llected from the 'hest 'dater Treatment Plant;'
vash water will contain a blended suspended solids
VL. Thus, if properly mixed, the untreated wash water
couia tie aischargect to the sanitary surer without exceeding the 250 rng/L, standard.
surge basin would be equipped with mixers'and would be required to equalize
and mix the wash water. The mixing basin would also allow for a- controlled
discharge to the sewer. A pipeline would be constructed from the mixing basin to the
existing 0-inch sanitary sewer along McDowell Creek.
A charge of $1.22 per 100 cubic feet would be assessed for water discharged to
the sewer. In addition, the available capacity of the existing sanitary ;sewer and
McDowell WWTP will be considerably reduced.. Even if the cost of discharging to
the sewer is not economical as the primary disposal means, it may be as cast -effective
as; a backup.
. Treat Wash Water and Return to Head Qf Plant. The state has indicated
that returning treated wash water to the head of plant may be acceptable; however,
due to concerns about concentrating Giardia and cryptosporidium in the treatment
process, an alternative disposal method must also be provided if the wash water i
reused.

M
Sanitary
Sewer
F
cDowe l Creek,
. .
- -ON.
Head of Plant,
Wash Water
Mbr.n Tank
or Lake Norman
M
Plate Settler
Residuals
Handling
.t
Facility
Wash Water Stage Basin
McDowell Creek,
{
----------------
Head of Plant,
or Lake Norman
er
Clarifier
Wash Water or
Residuals
Residuals
— — Treated Wash Water
Handling
Facility
0
C! V TAN
NO EC EN U A T T
PROMESS BY DEWGN
WASH WATER H�NI) NYC AL TURNAM" S
Figure 7-1

Blending the treated water with the raw water may affect the chemical makeup
of the raw water and, thin, the treatment process.However, the treated wash water
could be returned at a low flew rate to minimize its effect on the raw water. It may
be possible to fill the wash water storage tank with water prier to lime and fluoride
addition, which would reduce the effect of the treated wash water on the raw water
quality.
e wash water would flow into a surge basin prior to being pumped to a wash
water clarifier. Conventional clarification equipment or plate settlers could be used
in the clarifier. Mixers would be provided in the surge basin to maintain a uniform
solids concentration in the basin. The decant from the clarifier would be pumped to
the head of the plant, and the residuals from the clarifier would flow to the residuals
thickening basins. peed equipment would be provided to feed sodium bisulfate to the
clarifier to remove the chlorine residual. A bypass pipe will be provided to allow the
wash water to be discharge directly to the sanitary sewer so the surge basin and
clarifier can be taken out of service.
Due to water quality implications and uncertainties associated with returning the
treated wash water to the head of the plant, this alternative is not recommended.
The plant will have provisions for returning the treated gash water to the head of the
plant if this is desired in the future.
c. Treat Wash Water and Discharge to McDowell Creek The wash water
would be treated as described previously if the water is returned to the head of the
plant. Sodium bisulfate would be fed into the wash water clarifier influent to remove
the chlorine residual"
e plant site currently is -under Mecklenburg County jurisdiction, which has
enacted the Mountain Island bake watershed plan. This regulation stipulates that
there shall be no new wastewater or industrial waste discharges into the watershed.
In preliminary discussions, Mecklenburg County Department of Environmental
Protection (MCD P) and; Planning Department have indicated that the discharge of
treated wash water to :McDowell Creek would be considered an industrial discharge
d therefore not allowed.
e Town of Huntersville plans to annex an area near the plant site during the
summer of 1993. After this annexation, Huntersville's extended territorial jurisdiction
will include the plant site, which means the plant site Will be subject to I -Guntersville
zoning and watershed ordinances. Huntersville, is currently developing a watershed
769 7-

f
plan. The draft watershed plan includes wording similar to the Mecklenburg County
watershed plan concerning new discharges to the :Mountain Island watershed.
MCDEP and the North Carolina Department of Environment, Health, and
Natural Resources NCDE are conducting a study of McDowell Creek to
identify all pollutionsources and to eliminate as many as possible. This study will be
completed in the fall of 1994. The Huntersville planning staff has indicated that it
may be possible to include a clause in their watershed plan that would allow for the
discharge to McDowell Creek, depending can the results of the McDowell Creek
study.
USES maps of the waster treatment plant site indicate that McDowell Creek has
a positive 7Q10 flow at the plant site. A NP'DES permit would be required if the
water is discharged to McDowell Creek. The permit will likely have a solids limit of
30 g/L and may also require monitoring for aluminum, chlorine, other chemicals,
and pH.
This Alternative will also have a bypass pipe to allow direct discharge to the
sanitary sewer so the surge basin and clarifier can be taken out o'service.
d. Treat Wash Water and Discharge to Lake Norman. The wash water
would be treated as described if the water is returned to the head of the plant.
Sodium bisulfate would be fed into the clarifier influent to remove the chlorine
residual, and treated wash water would be pumped to Lake Norman. A portion of
the abandoned Hunersville raw water intake piping could, possibly be utilized as the
discharge pipe.
e watershed plan for Lake Norman is expected to be enacted by the end of
1993. The NCDEHNR watershed protection group has; indicated that the discharge
of treated wash water to Lake Norman would be acceptable. An NP'DES permit
would be required for this discharge and may require monitoring for aluminum,
chlorine, other chemicals, and pH. The permit could be obtained before the end of
1993 to assure that the upcoming Lake Norman watershed regulations would not
affect the ability to discharge into Labe Norman.
This alternative would also include a bypass pipe to allow for direct discharge to
the sanitary sewer so the +surge basin and clarifier can be taken out of service.
e. Treat and Land Apply. Treating and land applying the wash water was
considered during the Alum Sludge Study. It was determined that this was not
070693 TM7-7

viable alternative because there b
proper application. If the plant s
;t S
A adequate land avail
were used for land; ap
esiduals Handling and Disposal
teria.
Residuals dewatering and
t d in Alum Sludge Facilities
hives. For the initial 18 mgd
property was recommended.
A(WTP or Franklin WTP for
)ds.
ical dewatering will become
be reserved for a dewatering
a of the residuals handling and
disposal alternatives is shown in Figure 7-2.
. Capacity of Facilities
a. Wash Water Handling and Treatment. Wash water handling and
treatment would consist of flow equalization, clarification, and disposal. The surge
basin would be sized for two filter back washes and two filter -to -waste cycles in
addition to thickener decant and future belt filter press filtrate and wash water. The
surge basin would be provided for the treatment and discharge to the sewer
alternatives. Provisions would be made for a second surge basin in the future. The
second basin would provide increased flexibility for filter washing and will serve as
backup to the initial surge basin.
Wash water treatment was evaluated using conventional clarification and plate
settlers according to the following facility layouts: 1 o trains, each capable o
treating the wash water from. 54 mgd plant flow, 2 three trains, each capable of
0706 TM7-
Lble on the plant site for
pliation of treated wash
aff to McDowell Creek,
3asins. The evaluation of
ment in the sedimentation basin was presented in dater
cal Memorandum No. 5, Process Component Evaluation and
vvatering and Man
I
• • i * fIM`v

Residuals Sputter
Residuals from
Sedimentation l ........ 1 .� _ De # #o Wash Water
Surge Basin
and Wash Water (3arifier l
l
L'
I -
1
Truck
Loading Station
Gravity Thickener Gravity Thickener
Storage
b -pP
Residuals
Decant
C5—
Dewatering
Building(future)
0 NORTHMECALENBURG WATERTREATMENTPLANT
BLACK & A V ATC�H RESIDUALS C: L :figure -

treating 36 mgd plant flow, (3) four trains, each capable of treating 27 mgd plant
flow, and (4) six trains, each capable of treating 18 mgd plant flow.
The cost of plate settler clarification was approximately 10 percent higher than
conventional clarification. Since space is available for conventional clarification
basins, they are recommended.
The facility layout -utilizing two trains, each capable of treating 54 mgd plant flow,
has the lowest total capital and present worth costs and allows for most efficient use
of available land. Therefore, two 54 mgd trains are recommended, one initially and
a second when the plant flow is greater than 54 mgd.
b. Residuals Handling and Disposal. The residuals handling facilities will
consist of unthickened residuals holding, gravity thickening, and thickened residuals
holding. Consistent with the wash water facilities evaluation, the residuals handling
facilities were> evaluated using two, three, four, and six equal trains. The layout
utilizing two trains, each capable of treating 54 mgd plant flow, was most cost-
effective and allows for the most efficient use of available land. Therefore, residual
treatment with two 54 mgd trains are recommended, one initially and a second when
the plant flow exceeds 54 mgd.
Until mechanical residuals dewatering facilities are installed in the future,
additional storage for thickened residuals is required when land application is not
feasible. The Alum Sludge Study recommended providing four months of thickened
residuals storage at the average plant flow of the 18 mgd facility. An earthen lagoon
and concrete basin were evaluated for thickened residuals storage. The lagoon has
a lower capital cost than the concrete basin, although residuals removal from the
concrete basin will be easier. The lagoon will serve as a backup to the dewatering
facilities in the future.
4. Costs
The capital, O&M, and present worth costs of the wash water and residual
handling facilities are presented in Table 7-3.
070693 TM7-9

Table 7-
Wash Water and Residuals Handling and Disposal Casts
($ x 1,000)
20-Year Year
0-Year
Capital Present Worth Salvage
Present
Alternative Casts() O&M Costs Value
Worth ()
(s (T) (Tfj )"
(@�tjT)
Wash Water
1. Mix and discharge to
sewer. 830 2,425 140
3,115
2. Treat and pump to
head of plant. 2,290 1:70 380
2,080
3. Treat and discharge
to McDowell Creek. 1,640 70 270
1,440
4. Treat and pump p to
Lake Norman. 21950 470 520
21900
Residuals
1. Gravity thickeners
and lagoon. 1,680 170 250
1,600
2. Gravity thickeners
and concrete storage
basin. 2,270 70 450
1,890
(1) includes 10 percent contingency and 15 percent E
2) Effective interest rate is 5 percent.
. Discussion
a. Wash Water Handling and Disposal Mixing and discharging the blended
wash water to the sanitary sewer has the lowest capital cast, however, O&M costs are
high because of the sewer surcharge. In addition, a significant portion of the
available capacity of the sewer and McDowellwill be utilized. This win
accelerate the need for expanding and improving McDowell WVVTP.
Discharge to
the sewer does provide a cost-effective backup, however.
Treating and pumping the wash water to the head of the
plant is not
recommended due to the water quality concerns associated with
Giardia and
070693 TM7.10

plement this alternative in the
Since the Lake Norman watershed plan will be developed in the near future, proper
coordination is required to assure that this discharge is allowed in the future.
b. Residuals Handling and Disposal. The gravity thickening facilities are the
same for both alternatives. The earthen lagoon has the lowest capital costs; however,
the O&M costs are higher than the concrete basin. The higher O&M costs are
associated with removal residuals. The bottom of the concrete basin would be sloped
to the drain so the residuals could be pumped. Periodic manual hosing and cleaning
would be required to remove any residuals which cannot be pumped. The residuals
from the lagoon would be removed by mechanical means.
6. Recommended Facilities
The recommended wash water and residual handling facilities include a wash
water surge basin, wash water clarifier with conventional clarification equipment, two
gravity thickeners, earthen residual storage lagoon, residual pumping station, polymer
and sodium bisulfite feed and storage facilities, and a truck loading station. The
recommended facilities will have a capacity to treat wash water and residuals from
54 mgd plant flow. The treated wash water will discharge to McDowell Creek. If
discharging to McDowell Creek is not allowed, treating and pumping to
Lake Norman would then be recommended.
D. Facilities Plan
1. Process Description
A process flow schematic of the proposed wash water and residuals handling and
disposal facilities is shown in Figure 7-3. A description of each of the facilities is
provided below. A site layout of the proposed facilities is shown in Figure 7-4.
070693 TM7-11

M Polymer Sodium Bisulfite
---------------------- w-
Decant To Disposal
(See Figm 7-1)
Clarifier
Was h Water
X
Wash
Water Surge in
By-pass and Overflow
- - - - - - - - - - - - - - I - - - - - - - - - - - - - - - - - - - - - -
Return Decant
Sewer
------------------------------- -------------- ------------------
Wash Water Residuals
Residuals from Sedimentation Basin Residuals Slitter
Polymer
Polymer
-------------- -----------------
- - - - - - - - - - - - - -
T ru ck
Loading Station
-g-
Gravity Thickener Gravity Thickener
Storage
Legend
Lagoon (back-up)
Wash Water or
Residuals
— — — &pqss and 4
erflow
------ Decant
Dewatering
0
Building (future)
NOR TH MECKMNB URG WA TER TREA TMENT PLAM
BLACK&VEATCH WASH WATERAAD RESIDUALS PROCESS FLOWSCHEM54TIC`
Figure 7-3
PROGRESS SYDESIGN

wash water and filter -to -was
f f f
i'Ifrl' f�i II
« f
imp
• M
f 1•b ! r f f • f
070693 7-1.2

tank, the two basins will provide 30 days' sto
flow by gravity to the wash water surge basin.
to the truck loading facility or flow by gravity
IF 04-- 1 A-
AWI�
s WiftII be removed by
e
"eed 4st
water surge basin effluent to
Decant from the thickener will
ickened residuals will be pumped
�e storage lagoon.
hen lagoon will store thickened
ween thickeners.
Thb-Lranarl Trttr-L- I ^--m,*41jftrs Minn A 1^-4—" -41
designed for pumping thickened residuals into tanker trucks. The area aroun(
loading station will be curbed and drained to prevent residuals runoff.
2. Preliminary Process Design Criteria
Preliminary design criteria for the wash water and residuals handling and dis]
facilities are shown in Table 7-4.
070693
TM7-13

Table 7-4
Residuals Handling Facilities
Preliminary
Design Criteria
Ultimate()
Initial Intermediate
WrP Design Capacity
Average, mgd
12
36
72
Maximum, mgd
18
54
108
Residuals Production
Average, lb/day
1,080
3,240
6,480
Maximum Month, lb/day
1,393
4,180
8,360
Maximum Day, lb/day
2,090
6,270
12,540
Wash Water Production
Average, mgd
0.502
1.56
3.12
Maximum, mgd
0.9b3
2.94
5.89
Wash Water Equalization Basin
Number of basins
1
1
2
Liquid storage, gallons
500,000
500,000
1,000,000
Basin diameter, feet
85
85
85
Sidewall depth, feet
14
14
14
Number of mixers/basin
2
2
2
Submersible pumps
2
4
8
Number of pumps
1.13
3.39
6.78
Firm pump capacity, mgd
Dechlorination & polymer feed
Location
Infected downstream
of submersible pumps.
Mixer type
In -line static mixers.
Wash Water Clarifier
Number of basins
1
1
2
Basin diameter, feet
85
85
85
Sidewall depth, feet
14
14
14
Hydraulic loading rate
Average, gpm/sf
0.06
0.19
0.19
Maximum, gpm/sf
0-121
0.36
0.36
070693
TM7-14

Table 7-4 Continued
Initial
Intermediate Ultimate()
Residuals Thickener
Number of basins
2
2
4
Basin diameter, feet
50
50
50
Sidewall depth, feet
14
14
14
Hydraulic loading rate, gpm/sf
0.03
0.09
0.09
Solids loading rate, lb/hr/sf
0.03
0.09
0.09
Thickened sludge storage
Average(), days
22.3
7.4
7.4
MaXiMUM(3), days
11.5
3.8
3.8
Polymer feed
Injected upstream at residuals splitter.
Residuals Pump Station
Solids concentration
Unthickened, percent
0.2
0.2
0.2
Thickened, percent
2.0
2.0
2.0
Progressive cavity pumps
Number of pumps
2
3
4
Firm pump capacity, gpm
100
300
450
Sodium bisulfate feed(4)
Minimum contact time, an
2
2
2
Chemical usage
Dosage, mg/L
2.8
2.8
2.8
Average, gpd
3.0
9.3
18.5
Maximum, gpd
6.0
18.3
36.7
Bulk storage tank, gallons
500
500
500
Polymer feed
Wash water clarifier
Polymer usage
Dosage, mg/L
2
2
2
Average, lb/day
7.8
24.3
48.7
Maximum, lb/day
14.9
45.7
91.3
Residuals thickener
Polymer usage
Dosage, mg/L
4
4
4
Average, lb/day
2.2
6.5
13.0
Maximum, lb/day
2.8
8.4
16.7
Polymer type
Dry
Dry
Dry
070693 TM7-15

Table 7-4 Continued
Initial Intermediate Ulti ateM
Thickened Residuals Storage Lagoon
Earthen lagoon
Size, feet x feet 90 x 200 90 X 200 90 x 200
Depth, feet
Storage volume, gallons 800,700 800,000 500000
Effective tore(2), days 120
(1) Second tram of wash water and residual facilities are needed when plant
capacity is expanded beyond 54 gd.
> Based on average residuals production.
sl Based on maximum day residuals production.
0) Based on 2 mg/L chlorine residual and 35 percent sodium bisulfate feed solution.
E. Opinion of Probable Construction Cast
The opinion of probable construction costs for the recommended facilities are
summarized in Table 7_5.
"Table 7-5
Probable Construction Costs
Component Cast
Wash Water Facilities $1,640,000
Residuals Facilities $1,680,000
Total $3,320,000
These casts include 10 percent contingency and 15; percent E
0709 TM7-16

`a
o
FL
FLOW
TEMP,
deg. C
COND,
pmhos/cm
TUl
tl�t LT
3
ALK. 0.0.
L
B.O.D.
COLL
CL2
mg/L
P
mg/L
SITEDATE
PH
mg/L
mg/L
ce€Ct100mL
USGS 125
1979-81
low
76-150
5,6
51-100
5.1.8.0
0. .0
1001-5000
no data
0.0 ' ,05
high
76-15
7.1-8,5
no data
no data '
0.04.0
1001-55000
no data
0. .0
SITE
DATE
FLOW
Al
As
Cd
Cr
Cu
Fo
Ph
Mn
Hg
Ag
Zn
mg1L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
USES 15
1979-81
low
High
0,00 ,0050, 0. 50, -0. 5
O. 0.05
OA-1.0
0. 0,03
O. S O. 20.
O. .O5
0.006-0.05
O:007
>0.1
O. OA
1.1-1
0 -0,03
O, 5
0. 3.0.002 `
no data
0. .5
FECAL
"TEMP.
COND,
TURB.
TS
ALK,
D.0,
8.0.0.
COLL
CL2
P
At
SITE
DATE
FLOW
clog. C
pmhos/cm
PH
NTU
Porn
mg/L
mq1L
mg/L
cell/1 mL
mg/L
mgtL
mg/L
MC a1
01/15191
4,0
65
6.6
27
110
29
12,5
0.
O,5
<0.05
(MCDEP)
02111191
6,O
80
7A
16
102
40
12.1
O.6
300
0.0
0.05
_
03126/91
17.0
95
6.9
14
144
42
9.6
0.5
300
0,0
(:L08
05/15/91
18.0
105
7,6
17
100
49
8:6
O:7
2200
0,0
<0,05
0 8191
18,5
115
7,6
40
132
50
8.7
01
>6000
0.0
0,07
07/01/91
23.0
130
7,6
29
113
41
7.9
01
>6000
O:0
<0.05
09110/91
17.0
110
7A
16
118
57
8,6
O.6
600
0,0
<0.05
10102191 :
15,5
105
7.6
19
77
46
8.5 ;
0.7
300
0:0
<0.05
10/03/91
16.0
105
7,6
38
128
5O
8.7
0.2
1400
no data
0.06
11105/91 `
5.0
80
7.8
10
116
S0
11,9
O,6
600
00
<0.05
12109191
11.5
95
7.7
16
108
54
10.3
0.4
950 -
Mo
<0.05
01/10192'
10.5
90
7.3
28
116
43
10,5
1.5
800
O.0
0.17
02/06/92
7.0
75
7.7
20
118
48
11,2
O.5
1300
00
0»05
03103192:
13,0
80
7,6
32
123"
37
10A
0A
200
0.0
018
03131/92
13.0
80
7.6
24
114
32
9.1
0A
500
no data
0,32
04/06192
9,5
80
7.7
4
114
62
12,0
0A
500
0,0
0A 1
05/05/92
15.0
105
7.5
44
150
48
9.4
0.6
2100
no data
0.0
07/02192 -
22.0
120
7.5
44
134
46
6.7
0.4
1200
0.0
0.17
08/05/92'
22.0
120-
7„6
13
128
53
8,2
01
300
<01
015
09108192-
23,0
115'
7�5
60
151
44
7.2 '
0A
1300
0,0
0.68
MAX
23,0
130 "
7,8
60
151
62
12,5
1:5
6000
0.5
M68
AVG
14,3
97.5
7A6
25.55
119,8
46.05
9.605
0,545
1387.5
0,03
0.136
MIN
4,O
65
6.6
4
77
29
6.7
O:1
200
0
0.05
McDowell Dr.
Gilead Rd;
24
140
754
9.5
0.1
50
>23
no data
<0.01
McDowell Cr.
Sam Fa rr Rd
23.6
137
7.54
5A
0.11
46
>23
no data
<0.01
Franklin WTP
Miter #2
22.5
6,62
0,48
0.75
6
<1A
0,58'
<002
0.00
(com tto of
Franklin `VVTP
three fitters)
Fliter#5
22.2
6.66
0.59
0,74
6
<1A
0,62
0.00
Franklin WTP
Filter #9
89 -
Franklin WTP
Filter#14
21,9
6.96
0.9
0,78 ;
7
<1A
M60
<0.01

MAX 011
<0,05
0.10
1.30
0.68
AVG 0,53
<0.05
0.05
0.31
0.14
MIN 0.12
<0.05
<0.04 `
<0.15
<0.0S
DISCHARGE <0,11
<0A0
<0.20
<0,20
<0.02
Lake No an, Ramsey Creek Arm
Observed Monthly Avomgo
Temperature (1984 89, 90)
DEPTH
MONTH 6m
10M
JAN 9.75
&80
FES 10.50"
9.30
MAR 10.25
9.70
APR 13.60
12.25
MAY 1&20
14:00
JUN 24.00
20,30
JUL 27.50
23.25
AUG28.25:
2600
SEP 27.60
2640
OCT 23,00
22i50
NOV 18.30
18 20
DEC 14.50
14.00
r