NC0084387_Permit Issuance_20010427

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Mr. ,John C. Huber
CMUD
5100 Brookshire Boulevard
Charlotte, North Carolina 28216
Dear Mr. Huber:
Michael F. Easley
Governor
William G. Ross, Jr., Secretary
North Carolina Department of Environment and Natural Resources
Kerr T. Stevens, Director
Division of Water Quality
April 27, 2001
Subject•. Issuance of NPDES Permit NCO084387
North Mecklenburg WTP
Mecklenburg County
Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly,
we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated May 9, 1994 (or as subsequently amended).
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 Charles Weaver at telephone number (919) 733-
5083, extension 511.
cc: Central Files
Mooresville Regional Office/Water Quality Section
NPDES Unit
Point Source Compliance Enforcement Unit
N. C. Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
Internet: h2o.ennstate.nc.us
Sincerely,
ORIGINAL SIGNED BY
SUSAN A WILSON
Kerr T. Stevens
Phone: [phone]
fax: [phone]
DENR Customer Service Center. 1 800 623-7748

Permit NCO084387
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the 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
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 I, II, III and IV hereof.
This permit shall become effective June 1, 2001.
This permit and authorization to discharge shall expire at midnight on February 28, 2005.
Signed this day April 27, 2001.
ORIGINAL SIGNED BY
SUSAN A WILSON
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO084387
SUPPLEMENT TO PERMIT COVER SHEET
The Charlotte -Mecklenburg Utility Department is hereby authorized to:
1. 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 North Mecklenburg WTP on Babe Stilwell
Road near Huntersville in Mecklenburg County.
2. Discharge from said treatment works at the location specified on the attached
map into McDowell Creek, classified WS-IV CA waters in the Catawba River
Basin.

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no
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Quad #: F1 5 INNV
Facility
NCO084387 :m -
Latitude: 35*25'42"
. ' �°
Longitude: 81*53'17" CMUD North Location
Stream Class: WS-IV CA Mecklenburg %TP
Subbasin: 30833
Recciving Stream: McDowell Creek TNorth SCALE t29000

Permit NC0084387
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIItEMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS`
Monthly :
Average .
Daily. -
Maximum
Measurement
Frequency
Sample Type
Sample Location -
Flow
Weekly
Instantaneous
Effluent
Total Suspended Residue
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
Settleable Solids
0.1 ml/L
0.2 ml/L
Weekly
Grab
Effluent
Turbidity'
Weekly
Grab
Upstream & Downstream
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
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.

•
CI IAffIAT7'E,.
March 30, 2001
Mr. Charles H. Weaver, Jr.
N.C. Division of Water Quality/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
SUBJECT: Draft NPDES Permit
Permit # NC0084387
N. Mecklenburg Water Treatment Plant
Mecklenburg County
Dear Mr. Weaver:
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I have reviewed the draft permit # NCO084387 for the N. Mecklenburg W.T.P. and have
no objections to the requirements of the permit. I have no objection to the permit being
renewed prior to the date of June 1, 2001 the expiration date.
If you have any public comments that need to be addressed, please contact me at this
address or by telephone [phone] extension 222.
Thank you very much for your time.
Sincerely,
C.
John C. Huber
Superintendent
cc: Barry M. Gullet
File
Water Treatment 5200 Brookshire Boulevard Charlotte, NC 28216 704/399-2426
Charlotte -Mecklenburg Utility Department

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North Carolina } ss
Mecklenburg County}
The Knight Publishing Co., Inc.
Charlotte, NC
Affidavit of Publication
THE CHARLOTTE OBSERVER
--------------------------------------------------+-------------------------
NC DEHNR
ACCOUNTS PAYABLE
PO BOX 29535
RALEIGH NC 27626
REFERENCE: 20076833
4041934 Wastewater Permit
Before the undersigned, a Notary Public of said
County and State, duly authorized to administer
oaths affirmations, etc., personally appeared,
being duly sworn or affirmed according to law,
doth depose and say that he/she is a
representative of the Knight Publishing Company a
corporation organized and doing business under the
laws of the State of Delaware, and publishing a
newspaper known as The Charlotte Observer in the
city of Charlotte, County of Mecklenburg and State
of North Carolina and that as such he/she is
familiar with the books, records, files and
business of said Corporation and by reference to
the files of said publication
the attached advertisement was inserted. The
following is correctly copied from the books and
files of the aforesaid Corporation and
Publication.
PUBLISHED ON: 03/10
PUSLIC NOTICE
STATE OF NOR T CAR OI I
P0E9 UN
ENVIRONMENTA617 AAL ERVICE ENTEpONMlT
RALEIGH, NG 27 161)
NOTIFICATION OF INTENT TO ISSUE A NPOES WASTEWATER PERMIT
On me bads Mth... hsr review azM epplicalionM NCGeneral SUU0
143.21,PUMk14-92'500 and Moor lawlul slande , a, regulaUans, the
Noah CerMlne EnwronmenlalManagemeM Commisslon pro ) ses td issue
OUcharpe parmit oI Vie perwn(s)timNaO belwvMettedive 450aW 1romalhe
Publish dale Of tle9 rolice. .. _ _ 30
04031934
AD SPACE: 74 LINE
FILED ON: 03/12/01
NAME. TITLE:
DATE:
In Testimon Whereof I have hereunto set my hand and affixed my seal, the
day and year aforesaid.
Notary: Commission Expires: a/-U/P5

To: Permits and Engineering Unit
Water Quality Section
Attention: Charles Weaver
SOC PRIORITY PROJECT: No
Date: March 8, 2001
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Mecklenburg
NPDES Permit No.: NCO084387
MRO No.: 01-24
PART I - GENERAL INFORMATION
1. Facility and Address: North Mecklenburg WTP
Charlotte -Mecklenburg Utility Dept.
5100 Brookshire Blvd.
Charlotte, N.C. 28216
2.
Date of Investigation: February 23, 2001
3.
Report Prepared By: Michael L. Parker, Environmental. Engineer II
4.
Person Contacted and Telephone Number: Frank Ellington, WTP Supervisor
and ORC
[phone], ext. 260.
5.
Directions to Site: From the jct. of Hwy. 73 and SR 2143 (Babe Stillwell F
-Rd.)
southwest of the Town of Cornelius, travel east on SR 2143 to the end of the
ad. The
WTP site is located at the end of SR 2143.
17
6.
Discharge Point(s), List for all discharge Points: -
17
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Latitude: 350 25' 42"
n A
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Longitude: 810 53' 17"
o
Attach USGS Map Extract indicate treatment discharge
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a and plant site and
oint'samap.
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 W WT facilities that serve the
WTP will not be constructed within the flood plain.
9.
Location of Nearest Dwelling: Approx. 500+ feet from the WWTP site.

Page Two
10. Receiving Stream or Affected Surface Waters: McDowell Creek
a. Classification: WS-IV
b. River Basin and Subbasin No.: Catawba 030833
C. Describe receiving stream features and pertinent downstream uses: Flow
observed at the proposed point of discharge. The area is generally rural with one
significant discharger located = 4.0 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 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 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 (POTWs only): Not Needed.
2. 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 land
applied or taken to an approved landfill.
3. Treatment Plant Classification: Class I
4. SIC Code(s): 4941 Wastewater Code(s): 21 MTU Code(s): 51003
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 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 II, No. 1(g) above.
Important SOC/JOC or Compliance Schedule dates: N/A
4. 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 0.200
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
sewer line might cause overloading of the WWTP (as well as possibly disrupting
treatment at the WWTP), 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 18.0 MGD with an ultimate design flow of 108
MGD. There have been no changes to the W WT 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. _ _
Signature of Report
Water Quality Regional Supervisor Date
hAdsAdsrOlMrthmeck.wtp

State of North Carolina
Department of Environment 4 •
and Natural Resources %No_
Division of Water Quality w�
Michael F. Easley, Governor NCDENR
William G. Ross, Jr., Secretary NORTI-1 CCAAROUNA DEPARTMENT OF
Kerr T. Stevens, Director ENVIRONNVW8WbUP/£NY�I0Wfi6TJRCE5
AND NATURAL RE$ 3LIRCES
February 23, 2001 MOORESVILLE T+EG! :lvlo-_ C:=rICE
P.� ,.
MEMORANDUM
MAR 0 2 2001
To: Britt Setzer
NC DENR / DEH / Regional Engineer - — —'
Mooresville Regional Office I� r
h+AR 1 2 2001 �tT'c QUALITY
I'p q� SECTION
g�eq
From Charles H. Weaver, Jr. WM 1 C QUAD t I SEC 1 IVN
NPDES Unit
DEAR - WAIER QUALITY
Subject Review of Draft NPDES Permit 1, NT SOURCE BRANCH
CMUD / North Mecklenburg W . Sy3 b'
Mecklenburg County
Please indicate below your agency's position or viewpoint on the draft permit and return this form by March 23,
2001. If you have any questions on the draft permit, please contact me at the telephone number or e-mail address
listed at the bottom of this page.
S3 CS C9 s4 S4 C�r3 r3 fis Ci3C1 C�3C4 is 63 �iC�l3 CY CY3CS C46.18'i C�S3 C9 CS SS &Z S9 i9 o3 C3 C43�5 �5
RESPO : (Check one)
Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated effluent
limits are met prior to discharge, and the discharge does not contravene the designated water quality standards.
❑ Concurs with issuance of the above permit, provided the following conditions are met:
❑ Opposes the issuance of the above permit, based on reasons stated below, or attached:
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 511 (fax) 919733-0719
VisrrusoNTrtsiwERNET@htlp:llh2o.enr.state.nc.us(NPDES [e-mail]

•
L.,-,,�L(YF'FE,.
An 2 3 2MI U
DENR - WATER QUALITY
January 19, 2001
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,
J n C. Huber
Water Treatment Superintendent
cc: File
Water Treatment 5200 Brookshire Boulevard Charlotte, NC 28216 704/399-2426
Charlotte -Mecklenburg Utility Department

•
CHARLOTTE,.,.
January 19, 2001
Mr. Charles H. Weaver, Jr.
NC DEHNR
Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh NC 27699-1617
Subject: NPDES Permit No. NCO084387
Sludge Management Plan
Dear Mr. Weaver:
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 North 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.
2. 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 point.
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 704-399-2426 ext. 222.
Sin rely,
C,
J n C. Huber
Water Treatment Superintendent
cc: File
Water Treatment 5200 Brookshire Boulevard Charlotte, NC 28216 704/399-2426
Charlotte -Mecklenburg Utility Department