NC0036277_Regional Office Historical File Pre 2018 (2)

a ' Permit NCQU b '77
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION ATER QUALITY
PERMIT
T DI HAVE E A TEU "ATER UNDER THE
NATIONAL P LIT T T3 CkHARCIE ELIMINATION SYSTEM
In o I ovision of North. Carolina General Statute 14-:215.1 other lawful
stun res d e latio s promulgated d adopted by the Na Carolina Environmental
1 ent C mission, and the Federal Water Pollution Control act, as amended,
Charlotte -Mecklenburg Utility Department
is hereby authorized to discharge wastewater from a facility located at the
McDowell Creek Wastewater Treatment Plant
NCSR 207
Near the Town of Huntersville
Mecklenburg Count;
to receiving waters designated as McDowell Creed in the Catawba river Basin
in accordance with effluent limitations, monitoring requirements, and other
conditions set forth in Parts 1, 11, 111 and IV hereof.
This permit shall become effective
This permit and authorization to discharge shall expire at midnight on February 28, 2005.
Signed this day
Kerr'T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO036277
SUPPLEMENT TO PERMIT COVER SHEET
Charlotte -Mecklenburg Utility Department is hereby authorized to:
1. Continue to operate the existing i.0 MCID wastewater treatment facility
consisting of-
• Mechanical bar screens
• grit removal
• primary clarifiers
• Biological Nutrient Removal (BNR) system
final clarifiers
• tertiary filtration
final clarifiers
• anaerobic sludge digestion
• sand drying beds
• LTV disinfection
Sludge thickening;
located at McDowell CreekWastewater Treatment Plant, on SR 2074, Neck
Road,near the Town of Eluntersville in Mecklenburg County
2. Discharge from said treatment works at the location specified on the attached
map into McDowell' Creek, which is classified' WS-lV waters in the Catawba River'
Basin.

monitor for the following between the months of April - October.
Parameter Frejuency/Mae Location
Chlorophyll -a Monthly/composite* Downstream .t Neck Road
Total Phosphorus Monthly/composte Downstream t Neck Road`
N` _N Monthly/composite Downstream t Neck load
TKN Monthly/composite Downstream at Neck Road
NO2-K03 Monthly/composite Downstream t Neck Road
* Composites should be collected as a, spatial composite throughout the photic zone (i.e. two
times the secchi depth)
n

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management 9
James B. Hunt, Jr., Governor deftawak
Jonathan B. Howes, Secretary F1
b4 A. Preston Howard, Jr., P.E., Director 1L--0'00
ITM
ff NATURAL RES()Jjj�Cr
/0_3
SEP 12 1995
MR DOUGLASO. BE September 7, 1995 DIVISION PF [MVIROM"AIRTAL VM4,4,grV[NT
CHARLOTTE MECKLENBURG UTILITY DEPT, WORHYRIE RLEGIO,�A,�
5 100 BROOKSHIRE BLVD.
CHARLOTTE, NORTH CAROLINA 28216
Subject: Application No. ACF036277
,N-Y-WTP/McDowell Imp
Authorization To Construct
Mecklenburg County
Dear MR BEAN:
The Division's Permits and Engineering Unit acknowledges receipt of your permit application and
supporting materials on August 31, 1995. This application has been assigned the number listed above.
PLEASE REFER TO THE ABOVE WATER QUALITY NUMBER W14EN MAKING
INQUIRES ON THIS PROJECT.
Your project has been assigned to Greg Nizich for a detailed engineering review. Should there be any
questions concerning your project, the reviewer will contact you with an additional information letter,
Be aware that the Division's regional office, copied below, must provide recommendations from the
1-
Regional Supervisor or a Procedure Four Evaluation for this project., prior to final action by the
zl�
Division.
If you have any questions, please contact Greg Nizich at [phone] extension 541. If the engineer
is unavailable, you may leave a message on their voice mail and they will respond promptly. Please
reference the above application number when leaving a message.
Sincerely,
Carolyn Mc6skill
Supervisor, State Engineering Review Group
cc: 14,4
Black & Veatch
Pollution Prevention Pays
P.O. Box 29535, RaleigCXh, North Carolina 27626-0535, Telephone [phone]
An Equal Opportunity Affirmative Action Employer

. I)EP . C
BLACK & VEATCH 15
CIVIL MECHANICAL DESIGN MEMORANDUM I tSJO� rr � MA
WICE
Charlotte -Mecklenburg Utility Department B&V Project 27461.241.
McDowell Creek WastewaterTreatment Plant B&V File
��..� First Issue: February 24, 1995
Latest Revision:' August 7# 1995
To: Distribution
From: J.M. Hawkins/D.M. Rarker/P.H Hargette/B.K. Rogers/C.L. Wallis-Lage
References: (1) Engineering Study for the Upgrade and Expansion of
Mallard Creek and McDowell Creek Wastewater
Treatment Facilities. Black &'Veatch, 1988.
(2) McDowells Creek WWTP Wastewater System
Improvements (Construction Drawings and
Specifications)". J.' N. Pease and Associates, 1977.
ENERAL
This design memorandum presents the criteria for the design of the
civil and mechanical systems which are to be provided as part of the
Phase I improvements to the McDowell Creek Wastewater Treatment Plant
in M:klenburg County, North Carolina.
A. PROJECT DESCRIPTION
The upgrade and expansion of the McDowell Creek Wastewater
Treatment Plant will occur in two phases. The construction of the
Phase I improvements will begin in Larch 1995 and will be
substantially complete in May 1995.' The construction of the
Phase II improvements should begin in February 1996.
(1) Phase I will expand the plant capacity from 3.0 mgd to
.5 mgd by increasing the aeration capacity. This ;expansion
'retains the existing two -stage configuration for
nitrification. 'However, the existing sock diffuser aeration
system will be replaced by a flexible membrance diffused
aeration system in the portion of the aeration basins which
will remain as aerobic in; the PhaseIl expansion. The sock
diffusers will remain in service in the portion of the basins'
which will be converted to an anoxic zone under Phase II.
(2) Phase II improvements will provide biological nutrient
(phosphorus and nitrogen) removal (BNR). The second stage of
the existing system will be operated in parallel with the
first stage to produce a single -stage parallel treatment
system. To achieve BNR, external anaerobic basins will be

BLACK & VEATCH
CIVIL/MECHANICAL DESIGN MEMORANDUM Page 2
Charlotte -Mecklenburg Utility Department B&V Project 27461.241
McDowell Creek Wastewater Treatment Plant File A
Phase I Improvements First Issue: February 24, 1995
Latest Revision.- August 7, 1995
provided and the existing aeration basins will be modified to
include both anoxic and aerobic (oxic) zones. The existing
intermediate clarifiers and one of the existing final
clarifiers will be converted to aeration basins.
Other Phase II improvements will include construction of a
preliminary treatment structure, ,third primary clarifier,
anaerobic basins, two new final Q'larifiers, an effluent
filter structure including return: activated sludge pumping
station and gravity belt thickening facilities, ultraviolet
disinfection system, and cascadepost-aeration. Improvements
will ibe made to the influent pumping station, blower
building, and air piping, primary sludge pumping station,
anaerobic digesters, and operations building. The Phase II
improvements will expand the plant capacity from 3.5 to
6 mgd.
B. 'DATUM
All elevations will be USES datum.,,: Several benchmarks have been
established on the site.
C. DESIGN SUBCONTRACTS
Surve , "in . A topographic survey of the site has been completed by
Jack R. Ragland, RLS, Asheboro, North Carolina. All horizontal
measurements were tied to the existing plant baseline.
D. FLOOD
The 100-year flood level as established by the current effective
FEMA Flood Insurance Study for McDowell Creek is approximately
Elevation 658.1
E. SOURCE OF UTILITIES
I. Electricity Crescent Electric
P. O:Box 8
Cornelius, NC 28031
[phone]
[phone]
J1 1

BLACK & VEATCtI
CIVIL/MECHANICAL DESIGN MEMORANDUM Page"
Charlotte -Mecklenburg Utility Department B V Project 27461.241
McDowell Creek Wastewater Treatment Plant File A
Phase I Improvements First Issue. February 24, 1995
Latest Revision: August 7, 199
2. Telephone - Southern Bell
208 North Caldwell Street
[phone]
3. Potable Water • Existing well on site (city water not
available).
4. Natural Gas - Not available on site
PROCESS DESIGN CRITERIA
The existing process train includes primary clarifiers, trickling
filters, and two -stage activated sludge. No modification to this
process train is proposed for the Phase I improvements. The following
criteria were developed based on May 1, 1991 - April 30, 1994 plant
records.
A. WASTEWATER FLOW
Phase I
Actual Design —
Annual 24 hour
average (mgd) 1.9 3.5
Maximum Month
Daily Average (g) 2.4 4.
Peak Day (mgd) 5.6 10.3
Ratio, peak day
to annual average 2.9::1 2.9:1
B. HYDRAULIC CAPACITY OF PLANT
Increasing aeration capacity will expand the treatment capacity of
the plant from 3.0 mgd to 3.5 mgd average daily flaw. The
following table summarizes the maximum anticipated hydraulic flows
through each type of treatment throughout the plant.

BLACK & VEATCH
CIVIUMECHANICAL DESIGN MEMORANDUM 'age 11
t4arlotte-Mecklenburg Utility Department :;, Project 27461.2e
McDowell- " e
Phase I Improvements First Issue: February 24, 19
Revision: • ''
E. TRICKLING (ROUGHING) FILTERS
There are two trickling filters, each 70 feet in diameter by 4 feet
in rock depth:
Number
Diameter, It 70
Media type Rock
Depth, ft
Volume, ft /filter 15,400
Surface area, ft /filter 3,50
Hydraulic capacity, per filter, mgd
Average
w/recirculation 4.5
Peak (60" heady 5
Desion Avg. Design Max Mo.
Organic Loading - BOD, l f day/ft3 .23 .64
Hydraulic loading, gpm/ft @ 6 mgd 54 .54
Distributor
Type 4-arm
Model Envirex #220
Hydraulic capacity, gm
Maximum 4,200
Minimum 1,220
Available head, ft 5
Primary clarifier effluent flows by gravity to a recirculation
pumping station, is mixed with recirculated trickling filter
effluent; and is sent to the trickling filters. The filters can
recycle up to 3 mgd of the incoming flow. The recirculation pumps
have the following specifications:
Number of Pumps 3
Type Aurora vertical axial flow
Rated capacity, gpm 1165
Rated head, It 18
Motor horsepower 7.5
Motor max. speed, rpm 1165

BLACK & VEATCH
CIVIL MECHANICAL DESIGN MEMORANDUM Page 20
Charlotte -Mecklenburg Utility Department B&V Project 27461.241
McDowell Creek Wastewater Treatment Plant File A
Phase I Improvements First Issue: February 24, 1995
Latest Revision: August 7, 1995
4. Digested SJudge PULnps. The existing digested sludge pumps
located in the digester building are used to discharge
digested sludge to the liquid truck loading station or
sludge drying beds. These pumps consist of one existing
recessed impeller pump and one existing positive
displacement (piston) pump.
_20PL-1 —EM 2
Number 1 1
Type Recessed Positive
impeller displacement
Capacity, gpm 300 300
Total dynamic head, ft 95 95
Motor horsepower 30 30
0. SLUDGE DRYING BEDS
There are 34 sludge drying beds, each 40 feet in width by 100 feet
in length, providing 136,000 square feet of drying bed area.
Subnatant from the drying beds drains back to the influent pumping
station.
P. LIQUID SLUDGE TRUCK LOADING STATION
A truck loading station is currently in use at the sludge drying
beds. This loading station is used to transfer sludge from the
digesters to tanker trucks for land application, and may also be
used for hauling to the Mallard Creek WWTP for dewatering. The
digested sludge pumps located in the digesters are utilized for
truck loading.
MCD1/jhb
Distribution: Phase I Distribution

pp" PPPP '.
S0�7 Priority Proje-f
To: Pcrrritn and Er,!-necring Unit,
Water Qual-l".tY section
Attention: Crrg
Date: April 19, 1995
NPDES STAFF REPORT AND RECOMMENDATION
County: Mecklenburg
MR O No.: 95-54
Permit No. NC0036277 (Modification)
PART I GENERAL INFORMATION
1. Facility and Address: Charlotte - Mecklenburg Utility Dept.
McDowell Creek WWTP
5100 Brookshire Boulevard
Charlotte, North Carolina 28216
2. Date of Investigation*. N/A
3. Report Prepared by: Michael L. Parker, Environ. Engineer II
4. Persons Contacted and Telephone Number: No one.
5. Directions to Site: From the intersection of SR 2128
(Beatties Ford Road) and SR 2074 (Neck Road), travel wcot on
SR 2074 approximately 1.9 miles. The WWTP is located on the
right side of SR 2074 after crossing McDowell Creek.
6. Discharge Point(s), List for all discharge points:
Latitude: 35' 22' 52" Longitude: 804 56' 25"
Attach a US map extract and indicate treatment facility site
and discharge point on map.
USGS Quad No.: F15NW USGS Quad Name: Lake Norman South, NC
7. Site size and expansion area consistent with application?
Adequate area exists for the proposed expansion.
8. Topography (relationship to flood plain included): Moderately
sloping, neither the WWTP nor the expansion area is located
within the 100 year flood plain.
9. Location of nearest dwelling: None within 1000 feet.

-qqqq
Page Two
10. Receiving stream or affected surface waters: McDowell Creek
a. Classification: WS-IV CA
b. River Basin and Subbasin No.: Catawba 030833
C. Describe receiving stream features and pertinent
downstream uses: Small slow moving stream, there are
several small wctland areas adjacent to the creek. The
CMUD water intake is located a few miles downstream on
Mountain Island Lake. The lake is also used for primary
and secondary recreation.
PART 11 DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted: 3.0 MG D (ultimate
design capacity)
b. Current permitted capacity of the wastewater treatment
facility: 3.0 MGD
C. Actual treatment capacity of the current facility
(current design capacity): 3.0 MELD
d. Datc(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: N/A
C. Please 'provide a description of existing or substantially
constructed wastewater treatment facilities: The
existing WWT facilities consist of 2 manual bar screens,
grit removal, influent pumping, 2 primary clarifiers, 2
trickling filters, first stage aeration, 2 intermediate
clarifiers, second stage aeration, 2 final clarifiers,
aerated polishing, pond, 4 anaerobic sludge digesters, and
chlorination.
f. Please provide a description of proposed wastewater
treatment facilities: The WWTP improvements proposed for
phase I involves the replacement of the diffusers in the
aeration basins. The second phase (phase II) will include
the addition of biological nutrient removal (aerobic,
anoxic and anaerobic processes), effluent dcnitrifying
filters, ultraviolet disinfection, and sludge thickening.
9. Possible toxic impacts to surface waters: This facility
has a history of compliance with toxicity testing.
h. Pretreatment Program (POTWs only): The CMUD has an
approved pretreatment program. There are 3 significant
industrial users Permitted to discharge process
wastewater to the WWTP.

ppppppp-
Page Three
2. Residuals handling and utilization/disposal scheme: Residu
treatment consists of four anaerobic digesters, sludge dry
beds, and land application.
a. If residuals are being land applied, please specify
permit no.: WQOO00057
Residuals Contractor: Bio Gro, Inc.
Telephone No.: [phone]
b. Residuals stabilization: PSRP
3. Treatment plant classification: Class IV (rating will
change as a result of the proposed expansion).
4. SIC Codc(s): 4952
Wastewater Codc(s): 01
Main Treatment Unit Code: 11503
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with ' Construction Gr
funds or are any public monies involved (municipals onl
The proposed WC TP modifications will be funded with pub
monies.
2. Special monitoring or limitations (including toxici
requests*. Effluent limitation changer, are projected u
expansion. No additional monitoring and/or limitations
recommended at this time.
3. Important SCSC, JOC or Compliance Schedule dates (Ple
indicate): N/A
4. Alternative Analysis Evaluation: N/A
PART IV - EVALUATION AND RECOMMENDATIONS
The permittec, Charlotte - Mecklenburg Utility Department,
applied for approval to expand the subject facility from
current capacity of 3.0 MGD to 6.0 MG D (the capacity w
temporarily, go from 3.0 to 3.5 MGD in the first phase of the W
expansion). The WWTP expansion is the result of the tremend
growth in the northern part of Mecklenburg County.
Mr. Barry Gullet, Assistant Director with CMUD, has requcs
that a proposed residual chlorine limit, which is anticipated u
expansion, not take effect until annual effluent flows average
MGD. The proposed chlorine limit should not take effect until P1
capacity has been increased (upon completion of an expansio
therefore, no action is necessary on Mr. Gullet's request.
.c

-qqq
Page Four
Mr. Gullet has also requested that the it speculative" TN limits
developed by the Division of 4.0 mg/1 (summer), 8.0 mg/1 (winter)
not be imposed until a study be conducted to determine the levels
necessary to protect WQ. It is Mr. Gullet's contention, based on a
July 1-9, 1994 letter from Don Safrit, that the speculative limits
should not be imposed without further instream data. The McDowell
Creck watershed was studied for the post two (2) years and
recommendations in the form of a Management Plan were expected to
indicate the need for nutrient removal at the subject facility.
This Office is unaware of the results of this study, however, if
the recommendations of the Management Plan (based on the
accumulated data) point to the need for nutrient removal then the
proposed TN limitations should remain. It should be noted that the
final decision on the need for nutrient limitations should come
from the TSB.
It is recommended that the permit be modified as requested
pending final approval of the WLA and the resolution of the
concerns addressed by Mr. Gullet.
r-7
Signature of4K'port preparer Date
it
VatciQuality ikeg V 'f7 Y
it ffnitl Superi -sor ate

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' 3 5 0 i KILOMETER
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8 FOR SALE BY U. S. GEOLOGICAL SURVEY, WASHINGTON, C. C. 20242

SOC Priority Project: No
To: Permits and Engineering Unit
Water Quality Section
Attention: Greg Niz ch
Date: September 18, 1995
ICES STAFF REPORT AND RECOMMENDATION
County: Mecklenburg
Permit No. NC O036277
ACF036277
PART I - GENERAL INFORMATION
1. Facility and Address: Charlotte - Mecklenburg Utility Dept.
McDowell Creek WWTP
5100 Brookshire Boulevard
Charlotte, North Carolina 28216
. Date of Investigation: September 14 1995
. Report Prepared by: Todd St. John
4. Persons Contacted and Telephone Number: Peter Goins, Plant Operator [phone]
. Directions to Site: From the intersection of SR 2128 (f eatties Ford Road) and SR 2074
(Neck Road), travel west on SR 2074 approximately 1.9 miles. The WWTP is located on
the right side of SR 2074 after crossing McDowell Creek.
6. Discharge Points), List for all discharge points:
Latitude: 350 22' 2" Longitude: 80' 56' 5"
Attach a USGS map extract and indicate treatment facility site and discharge point on map.
USGS Quad No.: F1 5NW USGS Quad Name: Lake Norman South, NC
7. Site size and expansion area consistent with application? Adequate area exists for the
proposed expansion.
8. Topography (relationship to flood plain included): Moderately sloping, neither the WWTP
nor the expansion area are located within the 100 year flood plain.
. Location of nearest dwelling: None within 1000 feet.

10. Receiving stream or affected surface waters: McDowell Creek
a. Classification: WS-IV CA
b. River Basin and Subbasin No.:; Catawba 030833
C. Describe receiving stream features and pertinent downstream uses:Small slow
moving stream, there are several small wetland areas adjacent to the creek. The
CMUD water intake is located a few miles downstream on Mountain Island Lake.
The lake is also used for primary and secondary recreation.
PART II DESCRIPTION OF DISCHARGE GE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted: 3.5?MGD (ultimate design capacity)
b. Current permitted capacity of the wastewater treatment facility: 3.0 MGD
C. Actual treatment capacity of the current facility (current design capacity): 3.5 MCI
d. Date(s) and construction activities allowed by previous Authorizations to Construct
issued in the previous two years. N/A
e. Please provide a description of existing or substantially constructed wastewater
treatment facilities: The existing W facilities consist of 2 manual bar screens, grit
removal, influent puraping, 2 primary clarifiers, 2 trickling filters, first stage aeration,
2 intermediate clarifiers, second stage aeration, 2 final clarifiers, aerated polishing
pond, 4 anaerobic sludge digesters, and chlorination.
f. Please provide a description of proposed wastewater rea ent facilities: The
WWTP improvements proposed for Phase I involve the replacement of the sock
diffusers with flexible membrane diffusers in the `final l3 portion of the aeration
basins. The modifications are already in place and operational.
g. Possible toxic impacts to surface waters: This facility has a history of compliance
with toxicity testing.
. Pretreatment Program (PQTWs only): The CMUD has an approved pretreatment
program. There are 3 significant industrial users permitted to discharge process
wastewater to the WWTP.
2. Residuals handling and utilization/disposal scheme: Residuals treatment consists of four
aerobic digesters; sludge drying beds, and land application.
a. If residuals are being land applied, please specify D M permit no.: WQ0000 l5i
Residuals (contractor: Bio Gr , Inc. Telephone No.: () 54 -0 3
Page 2

b. Residuals stabilization: PSRP
. Treatment plant classification: Class IV (rating will not change as a result of the proposed
expansion).
4. SIC Code(s): 4952
Wastewater Code(s): Cif
Main Treatment Unit Code: 11503
PARTHI - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant tiands or are any public monies
involved (municipals only)? The proposed WWTP modifications will be firaded with public
monies.
2. Special monitoring or limitations (including toxicity) requests: Effluent limitation changes
should be implemented with the increase in design capacity. No additional monitoring and/or
limitations are recommended at this time.
. Important SOC, JC. C or Compliance Schedule dates (Please indicate):- N/
. Alternative Analysis Evaluation: /A
PART IV - EVALUATION AND RECOMMENDATIONS
The pennittee, Charlotte - Mecklenburg Utility Department, has applied for authorization to
construct additional aeration capability (Phase 1) at the subject facility. This additional aeration i
already in place and operational. The addition has increased the current capacity of 3.0 MGD to 3.
MGD. The WVrrP expansion is the result of the tremendous growth in the northern o
Mecklenburg County.
r. Barry Gullet, Assistant Director with CMUD, has requested that u proposed residual
chlorine limit, which is anticipated upon expansion, not take effect until annual effluent flows
average 3.0 M D. However, this Office recommends that the proposed chloride limit should take
effect immediately as plant capacity has already increased.
1
Signature o report preparer Date
Water Qualit&gional Supervisor l6ate
"age

State of North Carolina ,
Department of'Environment,
Health and Natural Resources 4► ,
Division of Environmental Management ;.
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr. P.E., Director
N., Dt'T op
FINVIRON°,vT, g a r,
March 20, 1995 NATO �, R1,rs()1Z.
r. Douglas 0. Bean MAR 1995
Charlotte -Mecklenburg Utility Department 1 t l f [XVIRUNgENTAL 1�1 Zgt
lff
5100 Brookshire Boulevard MORRISVILLE REGIONAL OffitE
Charlotte, North Carolina'2821
Subject: Permit Modification
DES Permit NCO036277
CMUD McDowell Creek ?
Mecklenburg County
Dear Mr. Be
This is to acknowledge receipt of the fallowing documents on /1 /9 :
ICES Permit Application
Application Processing Fee of 400
• Request for Flow increase from 3.0 MGD to 6.0 MGD
• Annual Pollutant Analysis for 1994
Please be aware that submittals for future Authorization to Construct permits must include a residuals
management plan addressing requirements of 15A NCAC 211.0 8(b) 8 .
, by copy of this letter, requesting that the Mooresville Regional Office Supervisor prepare a staff
report and recommendations regarding this discharge. If you have any questions regarding this
application, please contact Mr. Greg Nizich at 919-733-5083, extension 541.
Sincerer,
1-01-t-Davidi/Go rich, Supervisor
NPDES Permits Group
cc. :Mooresville Regional Office
Permit File
P.C. Box 29535, Raleigh, North Carolina 27 26-0535 Telephone [phone] P 91-733-9919
n Equal Opportunity Affirmative ,Action Employer 50% recycled/ 10% past -consumer paper

PPPPPPP'
' A
,
March 6
Ms. Coleen H. Sullins, P.E.
Water Quality Section
Division of Environmental Management
N.C. Department of Environment, Health,
and Natural Resources
P.O. Box 29535
Raleigh, North Carolina 27626-0535
Subject: McDowell Creek WWTP
iPDES'Permit No. NCO 3627'
Mecklenburg County
Dear M. Sullins:
We are applying for a revised NPDES application for the referenced
facility. We request that this application be processed to allow z
phased expansion of the facility, with increased capacity to 35 me
the first phase and 6.0 mgd in the second phase'. This phased expa
is as described in the Environmental Assessment dated October 1, 1;
for which a°Finding of No Significant Impact (FONSI) was issued on
January 5, 1995.
on fee. Please no
d we are waiting d
nation will be for
ailable.
Administration Division 5100 Brookshire Boulevard Charlotte, NC
Charlotte -Mecklenburg Utility Department

a
D
a
n
A
a
t
t
t
di
01
I.
P
r. Coleen H. Sullins, P.E. March 8
Aojections indicate that the actual plant flows will not reach 3.(
itil the Phase 11 improvements are complete and the UV systpm can
[A-,tinn< Ar if ;In
Very truly yours,
CHARLOTTE-MECKLENBURG UTILITY DE]
Barry M.
Gullet, P.E.
Assistant Director
iclosures
David M. Parker, Black & Veatch
Mr. Don Willard, MCDEP

NORTH CARt3L .A I�EP"I'. OF NATURAL
RESOURCES COMM DEVELOPMENT""I � ` q
ENVIRONMENTAL ACE COMMISSION
�<
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
APPLICATION FOR PERMIT TO DISCHARGE WASTEWATER
STANDARD FOR - MUNICIPAL.
SECTION I. APPLICATION AND FACIUTY DESCRIPTION
Unto othervilso specified on this form all Iteme are to be completsd. ff an Item to not appt to " "
ADDITIONAL INSTRUCTIONS R SELECTED ITEMS APPEAR IN SEPARATE INSTRUCTION BOOKLET A
INDICATED. REFERTO BOOKLET BEFORE FILLING OUT THESE ITBAS,
'tear Type
1. Legal NarneofAppli t 101 City of Charlotte
(see instructions) ar otte- eCk en ur tlti it De 'artment
2 Mailing Address of Applicant
( Instructions)
Number &Street 102a 6100Brookshire Boulevard
city lCeb Charlotte
Stats 1 North Carolina
Zip Code la?d 8`1
3 Applicants Au rued Agent
(see instructions)
Name and Title 103a Ddu las C. Bean
Director
Number&Street 103b 5100 Brookshire Boulevard
city 103r. Charlotte.
State 103d North Carolina
Zip Code 1030 2216
Telephone 101 7 4 =2221
Area Number-
4 Previous Application Code
If a previous appp1` lion for a
p� tt under" a National
Pollutant Discharge Elimination
te System dategive
l' tien. ` 104 32 8 27'
yR M0 CLAY
I ce,dify±3that t am familiar viith information contained In this application t the best of my kno l belief such
information is , complete, accurate.
Douglas Q. Bean 102e Director
Print ame of Person Signing fate
142t I
ignai a of plicarrt or Authorized Agent YR M0 DAY
Date Application Signed
North Camilina General Statue 143.215.6 (b)( ) provides that Any person knoWng makes any false statement
rep entation, or certification in y application, record, report, plan, or other document Oes of requiredto be maintained under
'cie 21 or regulations of the Environmental Management Commission implementing that Article, or who falsifies, tampers with,
or noinglRrencksrs �a rate m thing of mestttoting devi or t ui ' to be rapers ear maintai ndefr "cIe
1 or re ulations of Environ nisi sent Conimcssn implem tine t Ne s be i or a i or
pualshala y a fine t tea a 1t}, or by' pri nt not to e r nibs, or b bath, t t1. s,C 10Ct1
provide
a untshmnt by a ft or t more than $1Ct, or imprisonment t years, or bath, foe a aimlr offers .)

d
ntor
are
Mittel
105b
UPUS
FED
1
1050
State
city
County
State
i to Another I
Facility' instrutia
a. Indicate if part of yc
is into a municipal
port system under
sponsrble o ig
complete the ' t r
d continue with i
go directly to Item`
b, R shale Or iti
Name ing C1ia
Number & SUwt
city
state
ZIP Code
c, Facility Which Rec
Discharge
Give the name of
{waste treatment
places and is ultin
Bible for treatmeni
discharge from y<
d, Average Daily Flo'
k
t'
of tyre ca...,,.—o g .,:..�..>
Estimate average volume per day in
million gallons per day, Do not include
intermittent or n ti us,
overflows, bypasses or seasonal dis-
charges from lagoons, holding
ponds, etc.

JAM
Number of
Total Volume Di
Di . Potimts
Million gallons Per Ca
To: Surf r
107a1
1t172@ S
Surface Impoundment with
107bl
1
no Effluent-
UrKiergrcund Pereolation
107101
10742
Well (Injection)
107 i
1ti7d2
Otter
10701
107e2
Total Item 7
1 7h
10M
if ofte is spedw, dasciit*
1071
If any of the discharges this
Fare intermittent, such as from
evew or bypass points, orals
seasonal or " ` farm is s,
holding pon_ , , etc., plebs item f1.
8 Intermittent Disduuges
a.Facil` points
Mica 1, number of bypass
1
paints for the facility that are
disdiarge points.(see instructions)
b. Facility Overflow'Points
Indicate the number of w
i
ppaants to a surfs ter for the
facility (see instructions)
c. Seasonal or Pen'odc Discha
Points Indicate ft number 0
1
points whem seasonal disscharges
occur from holding ds
lagoons, etc.
. ' Collection SystemType
1
miles)ofthe collection team used
by this facility. (see instruc ons)
Separate
SST
Separate Sanitary
)(3 SAN
Combined'Sanitary'and Storm
CSS
Bath Separate Sanitary and
Combined Sewer Systems
[ BSC
Both Separate Storm mid
Combined' Sewer Systems
1
SS
C artless
10 Municipalities of Areas Served
Actual PopLitation
(see instruct s)
Name
Served
110a
Cornelius
110b 2.970
110a
V7tson
110b 41280
110a
Hunter Ville
110b 4 1
110a
North
110b
110a
MecklenburS,,
110b l
Total Population Served
Estimated
1100 14,520

FOR AGENCY -USE
`7
11. Average Daily Industrial Flow
Total estimated average daily wasle ill Q.-044
I I
mgd
flow from all industrial souroes.
Note: All major industries (as defined in Section IV)
discharging to the municipal systern must be
listed in Soobon IV.
12 Permits, Licenses and Applications
last all existing, pending or denied permits, licenses and applications rotated to discharges from this facili
rnstnictions
Issuing I For Type of
Date Date Data
Agency Atw)cy Permit or
Filed issued Denied
so License ID Number
YR/MO/DA11- YRNO/DA YRIMO/DA
NC DEM NPDES )036277
jL8J27LC 3 3 29
�DEM
9 92Z9Z,30 3/4/02
/ /
:22M
11 Maps and Drawi
Attach all mquiVn aps and drawings to the back of this al:OcaWn. (900 instructions)
14. Addtional Information
Item
Number
Information

BVDWGNO 1 B — IG1.1
O000
CB i000
.RLRNT
INFLUENT
L.. PRELIMINARY
TREATMENT
-: MA:N LIFT
STATION
FORCE REIN
CHLORINE
/—INFLUENT
FACILITY
wcaDWELL TO
cREEa
'
TO3t,UGG6
AN�I-
ANk-
SLUDGE RETURN
SLUDGE :RETURN PtLISHINC LAGOON
LIME
FEED
RAW 5 L!£iGE
PUMP NG
- PTA$ ST
C ARI,FBEk
SECOQO
5 E
CLARTaI R
ST4710N°
ralcu�.aRc
fILtER
.,�
SET CON
ct fi#IFTER '�P,
„ A+AW
CtBRPM,
�gi. VfIAp
GLAR1 PIER
DtcefittR
aacttsTeR
A"IFYER
aaclaraR
Razz
DICESTER
CONTROL RLDG
t

00003
FCBA00003
P:.ANT EFFLUENT
TO MGD4WELL CREEK
OAFtfyL
xtA
A�
�S
FINAL
CLARIFIER
cry
P
d
''lk, 111op
FINAL
CLARIFIER
SJECEENTga
STRUCTURE
$MECF.ANICAC: OAR SCREENS 4
GRIT REMOVAL.)
AN
PRIMARY
CLARIFIER
PLIANT INFLUENT
FROM MAIN LIFT
STATION
AN
$°
Psi
TD SLUDGE
9;P
DRYING BEGS
AE
AE
r
TRICKLING
FILTER
AE/RX
AE/AX
A£
(ABANDONED)
\\
PRIMAR
CLARIFIER
TRIC ILING :AE
F ITER
(
AE
PRIMARY
NCItG4STMIi
PUmQIENG:.
STATION`
PRIMARY
0al GESTER
DG35TER NO5
CLARIFIERr
-,DIGESTER
aDCEMR CONTROL SLOG
aE
AEROBIC
AX -
ANOXIC
AN -
ANAERORIC
Ras --
RETURN ACTIVATED SLUDGE
WAS >-
WASTE ACTIVATED SLUDGE
AR -'ANOXIC
RECYCLE
OR «:DRIC
RECYCLE
PSO-
PRI144RYSLUDGE DECANT

T
ADMINISTRATIVE OFFICES
eA "®"" '""T'++: ^•,•-r® i eer 3TieFYSK to.00I N11w. d100 A_W.
$T ......
L£GT ON «EAb"*nE*V 300t N.w+a» *A
~4 CE DotOA*t*0T10* taEA TEAS Alt €a $I
.4""' > WASTEWATER LIFT STATIONS
1 v1O5Cd LIFT STATION, ; A IRKMT LIxT STATIOIA EXA as twaa pAM AA W Cr+r Gra»A
J S drd 51JW* GREEK LIFto T STATION M d C RA Aw» CroXX aM Kr4» HaAaW
f-i1MRk6 KAX IIFY $YkflW .120 N»Xune h
xxx444 AM LI T S ON T-W+NF4Wi 1w, 3TAYI0N t !r. N C, -tc*+xW NG TA mtl 0 uc #Y, Ni. dr»wa 9
✓ t , d tMTtIO.tUN LIFT F1ATtON' A A»A tm»Wr*'* i.1xr i lrtTan
y ". �, �'4tG:.., �1 9•WVid}5dk LVEY 3TdTitW' A rb »M p +»ttX 5 DgaWspM NG
(j{ - POEEAtiOW.tlrts LIFTIQT ION: AM i[4 w»A W Cutief/ C
� YT lN/Wlkai.Tfl4 LIFT 3TATNNt A K # 9 { mom+ Or. N9 NR WOM
" 1 & EAi+CRGAIE LIFT SIATIOI k 4m: M icw 1— A#
IkWNW"STATICK k�AA T td4ipOD AiA
" t'ARp6i#XF»4 Dr.,
YF•tb1G C*EER L fT STATION V114 At, I004 r L»ag Gttr
20
Yd-
I :. t r FT--.'-^.• '" 20-PAW t*E£K LIFT I'l 5tATAII .:OK 3 A 111 N *nm t A. :
'.1-MOTt RCMO LIFT IVIOW tE2O Fmrt W A Av GraA,
'y O; 4 22•FgtT910MN LtfT STAYtGN At M» N MCM»X 9 +iwnawrlN
23^AAtNTREE t fT SfAIM G A My 6n. irmN irmdwm Rd
ttuS "'. �, "✓ I,tti 2i SSTEELE tACEK "ST A➢fk io Lr Ora Ct A S..a Cl a SC 0
2d^STEELE CAEEK ROAD LIFT STATION Ot* S C+ A4.,%,sn how Cw INA £Ns
2i-STEAirNO lrxT STATION Of0 $
A ib2. papa WO MXwrYN Ntl
2d^tWST1NON0tNE ItIT SFATIM {*S* WaWygtRrA AAA.
LkTt SL4i16N 18t0O NNMXF. Cf
XO NESTHAU It i.I:T STAT"o" IkSSi YWvaamXA tk
bl-LWVTERS LIFT STFTN*t: CrtK *K At 11" C.I.
,' a . , .I•'.. ��' '». w l^ 't.: } WATER TREATMENT PLANTS
NCO036277 { NUNTERSYt44 LIFT T" > ,,,yn SLYEST +"ATE* TREATMENT PLANT. $20 AANtNA F04 04
i`-'" k POY"ISTOWN„w, "
T� 4 DOWELL ^' -. LY KT STATION .� WATER 400STER STATIONS
1 MNSTEWATER 1 / y'?"f..:. '�YA4 M%STER STATION' CrAm» d 0= AN. W A— IN,
TREATMENT PLANT yyM J �,' \ X-Pt AZA RQA0 40OSRA STATION R0W M*� M Pn *C
f ,� •'. ~'� \ WATER TANS: AND RESENYOYR
�y�}.{m �� y1'" ' +�-Cli#1d IVENf$ YANK' 3TW Co., r MX mM W E N B 0 GrNteW + 2
V 01 — — rt - — r ar � "•iy. r' "�� J \ ^` � tjAptNK#TN fAMN ITi ANA <MNt iYk NAI'»NtA XW GW A AxA. •.GMri T P1,6
y r"� t ^-NIGP4M 4*WE tINA; lR M Y **Eat. # W 5 0 #iKat EArtaGtT°@3 emi VXf u.
r-,yr�+. UN7ERSY14 TAN* 39-k03AkNS *ENAY01* A CANA tr»a T si, X* OAA4mM A#-OrmMi
.' " l" 4O-=EABYItlt 7`lA_. ,ON IM T $ to to "M Ni h✓111-1 SLbW-taWn*h
,+i,, AhPECAN AYE TANM. GYW AT IMMX * KN. &EiyX AY CAYFGYYa 10
4NkW. "1"»
'� ' 4241UA TAN dte va . vo*8tW 4 5
\ am A Ara
A1,NdtTN rNTON STR£C ` d230 WwA LNr St martA of TNN kw»e Nt W.:
44.0"0. *"0 TANK, 531A $FWM *t. ^C1McnT !.tl siiNAA d}tNr.
RAW WATER PWP STATION
/' "yam 7a..✓''` �. ,.+,. a aA-CXTAASA At Ad, MAM SFAt1otc At rN toS.A. 2002, f— r wbrg-
rA
t PiANt STATION } ,,.f " ' .., 7t § 14 WASTEWATER TREATMENT PLANTS
. I �v
CREEK
WASYEWA 4* *Y N "EEA WA*TEWATE* T4FATWENt PLANT Off Ad., X<
�.` 4T WLLARO METK W 1LA tIW:ATNANT RANT OA mM ir* GrM,
Y°>+'� 4A-MAALINIt CWEEA WSTEWATE* TREATNENT PLANT Nap Sgt.4»»wr
f t"`"%^ ,((wf ,.� \ Y i ,,J m•_ f Wes+!
ft-wtootll C - A TREATMENT KAW4 f m4
N'G C ". ..
It, "A* LIKE.
AMK "Cro AF o TAEATMENt *LANE NaT+4 S. M New
34•SWA* CE* W$4[WATE* F*£As1iENT 6L ANT; 5XN CVMae Poi.
R5 fAttlf Tl� w� � f ..... .. � ,-^^. j"r..
*1tSTIATIYE
LONG CREEL:
LIFT srAT ! F^,..., 1 � i � <• T"T°
n /( LIFT
fIt dry Ivo
A RO TEN
LIt m{..
' A
r ( CASE r
! J
i ITT STAT 4 LE TERN .,'ANWOdTN TAM(
it �h{ot ' •NC Asa `�``�...,.,,, /'` P�ATN TE y`. 'J fi i
upt
LAWYfAMS
tWpg; TEA \. ! r { •i LIFT
I TREATMENT + .r 'a r V 4c
*tA
AVANT ,yOP ," I •`..^>.-_.-.1* GBT ; r,• ' {a j '� �..�•: -- `�
STATK.N *MT.. MIN F3i y�,
NOLLOW
4fFT
' °ft
NfAMK
COEEK
IN
1
T STATIO
TINa J C I Nrrr rIIdOYs-
\ WESTNALL TT LIFT .ION w % f MAt HE
+ LIFT R`CRAE
e•,�,w LITT Tt. ON I0Frl.41AVON
iJ STELE
C
r , EPEE* 1 i'. t r��,\ • j ` t
J WOCWE.LL HER# I LIFT I/. 't /
(/ WASTEWATE „+( - STATIONt RAkN?PEE
TREATMENT t ANT `, t , Y r . .: • ,i1iy8'TATID
MCALPINE CREEK 'a t.
-.
\ i WASTEWATER TREATMENT "LIT
II
" PRDnxCEigANE
LIFT STATION >rr fi
VITAL INSTALLATIONS
MAINTAINED 6 OPERATED BY
CHARL0rTr-MECIlSLFWtM UTILITY DEP
L

should rotted best anginooring estimates.
ADDITIONAL . INSTRUCTIONS FOR SELECTED ITEMS APPEAR IN SEPARATE INSTRUCTION BOCIKLET AS
INDICATED. REFER TO BOOKLETBEFORE FILLING OUT THESE ITEMS.
1. Discha anal No Name
=
001
aDi Serial No,
2D1a
(see instructions)
h DischaW Name
X1b
McDowell Creek Discharge
Give ft name of discharge,
y (see instructions)
c. Previous Discharge Serial No
201c
001
If a pre ' us NP ES pe ft
i lion was made for this dis
p
charge (item 4, Section I) provide
previous disoharrge social
tuber.
Di a rating Dates
Di to Soon Date
If the ciLsoharge
has never
.
YR MC,
occurred
but is planned for some
future date, Ilive the data the,
discharge witi boon,
b.- Discharga t:a End Date If the
2C2b
discharge is scheduled be
YR MO
discontinued within the n
years, give the date (within best
estimate) the discharge w4i and.
Give on for ciscontinuing
this discharge in Item 17.'
3. D` L tion Name
6
the
in
poll a
which
the point of discharge is
_
A U
County
2CGb
eC etl urc
(if applicable) City or Town
203c
-A.
Zi3f
4. Discharge Paint Description
(s8instructions)
f3i a into (check one)
Stream (includes ditches, arroyos,
204a
;a STR
and other watercourses
Estuary
EST
Cow
E] OCE
Well (injection)
[] WEL
Otheir
Q OTH
ff-'other` is chocked, spaWy type
Discharge Point - LaULong.
State the precise location of the
point of discharge to the nearest
second. (see instructions)
<:35 DEC. i MIN.
I_ SEC
Longitude
205b
0 DEC. MIN.
SEC

Discharge Receiving Water N
Name the waterway at the pain'
discharge.(sea instructions)
ti the d is through an l t e)
beyond reline or is below the mew
ter line, complete item 7,
For qency Use
csr rear
ForAgan2y Use
03e
7. Offshore Discharge
a, Discharge Distance I
. Discharge Depth Below Wa
Surface
If discharge is from a bypass or an overflo
9, or 10, as applicable and continue with It
a Bypass Di (we instr c
a Mass Occurrence
bypass occt
Wet weather
Cary weather
b Bypass Frequency Giese t
actual or approximate nui
of bypass incidents per y
Wet weather
Dry weather
, Bypass Duration Give IN
age bypass duration in he
Wet weather
Cary weather
a Bypass Volume Give the
average volume per byps
incident ent, in thousand galls
Wet weather
Cary weather
Bypass Reasons Give to
why bypass occurs
proceed to Item 11.
9. Overflow Di instr
a Overflow Occurrence t
when overflow occurs
Wet weather
Dry weather
h Overflow Frequency Giv
actual or approximate
incidents per year
Wet weather
Dry weather
ore 207a
ter
Sat p Yes
M3b1

FUR x
DISCHARGE SERIAL NUMBER
001
c Overflow Duration Give the
amrage overflow duration
Wet weather
mi
Dry weather
209o2
_hours
d Ovetflow Volume Give the
average volumepar overflow
incident in thousand gallons,
Wet weather
2OW1
incident
Dry weather
209d2
thousand gallons per inicident
Proceed to Item 11
1C}. ` SeasonaWariodic Discharges
N. A.
a SeasonalPeriodio i a "
F , tf di is inter-
210a
-times
per
year
nvittent tiom a holding pond,
lagoon, etc„ give the actual or
appro)dmate number of times
this di aoccurs per year.
SeasonalPenodc Dischatge
210b
thousand gallons per discliarge 000urrenc
Volume Give the average
volume per discharge
in thousand
gallons.owirtencs
c: SeasonalMariodc Discharge
210c
days
Duration Give the average dura'
lion of each clischargs
occurrence in days.
d SeasonalVIDeriodc Discharge
Occutrance-Months, Check the
210d
[ JAN
[3 FEB
C{ MAR
nft during`the year when
(3 APR
MAY
[ JUN
the tfischarge normally occurs.
JUL
AUG
SEP
[]OCT
NOV
' [3 DEC
11 Discharge Treatment
a Discharge Tfoatrnent
Deschptron
Descstbewaste abatement pre
lices used on this discharge
with a brief naEve. (S69
See attachment.
in tr ctions)
211a

#3♦ Plant Design Data (
E Design Rol
Plant Design SO
c,
Plant resign
Rant Design
a.
Plant Design SS
t
Plant Began Ope
Plant Last Major r

STANDARD FORM A - Attachment
SECTION II.
Item I1.a. Treatment after the Phase I improvements will consist of
coarse bar screens; two primary clarifiers; two roughing
filters, two trains in series of activated sludge
treatment followed by intermediate and final clarifiers;
polishing in an aerated lagoon; chlorine for
disinfection; two anaerobic sludge digesters; and sand
filter sludge drying beds.
Treatment after the Phase 11 improvements will consist o
coarse and fine mechanical bar screens; grit removal;
three primary clarifiers; two roughing filters; two
trains in parallel: of activated sludge treatment using
anaerobic, anoxic, and aerobic processes; two final
clarifiers; effluent denitrifying filters; ultraviolet
disinfection, sludge thickening; anaerobic digesters, and
sand filter sludgedrying beds.
Item 1I.b. PHASE 1:
SIC, /FO , FO/AS/R, /AS/N`, N/LA, P
/D ,DN/ /XR,XD/
PHASE II.
S, ,CA/ ,C,C/FO,FO/AS,AS/N,N/FS,UV
/DN,DN/H/XR,XD/

M
l
0 Ott
R Ri
rr..
. ,.
...... .....
a
.Rt
• er r#r#.: :.
IX
• Mrs
ti� �"''
5 �.f.}"# .y
y,
R. R
{
#• RR
F
L
f
RRC •
•R
r
� r
#
R R?R
R tt

NCC
001
00M 1.84 10.72
(Provide if available)
--ITItrate (as N)
M9A
OOMD
(Provide it available)
Nante as N)
mg/I
00616
(Provide if available)
�Twsphorus i otalas
mg A 3.26 1.42
00666
(Provide if available)
MssolvM Mygen (W7
rngA 8.6 7.7
Om Im

t-Uh AUtNCY7USE-
DISCHARGE SERIAL NUMBER
001
1& Additional Wa$Iawat0rChaMcW$OC8
Chtx* the box next to each parameter if it is present Al ft effluent (a" instiructionsi)
.......... Va
a'r -Pm--se—rif
(215)
(216)
(216)
Womloo
?.�t
00
lTiairi
71870
01037
Ole%
mromium
Timl—um
00940
xx 01034 xx
01152
r
Jul
01042 xx
01102
U
Iron
no
009s1
xx 01046
01092 xx
00745
010SI xx
74061
Aluminum
'M95"FUM
oWc ' pun
01105
xx 01065
74052
--XTm--ony
arcury oil
and gmase
01007
719M
OOSSD
UnIC�
nurn
01002
01062
74053
fy lum
is
01012
01067 xx
Ingurn
—1 -------------
nim
01007
01147
38m,
Boron
NPar
a tww-v
01=
01077 xx
7405D
ium
01M7
Trovide specific compound antVor element in Item 17, if knovm.
Pesticides (Insecticides, fungicides, and rodenticides must be reported in taims of the acceptable common names specified in
}must
Acceeptable Common Names and Owmi the Inn exit Statement on Pesfickds
Labek 2 rid Edition, Environmental
Protection Agency, Washington, D.C. 20250, June 1972, as required by Subwtion 162.7 (b) of the RegWations for the
Enforcement of to Federal Insecticide, Fungicida, and Rodanbcida Act.

NCO036277
DISCHARGE SERIAL NUMBER
001
Plant Controls CNxk if the following
ant controls are available for this
schatge 216
Alternate f 'r
pumping tc"Aityr:dUu'dZgO1rh=
for collection system lift stations APS,
Ala rrn for power or equipment
tailure ALM
Adclitional Inbrmallon
15 One copy of FebruaU 1995 Headworks Lott -terlr
Monitoring Plan tot be forwarded when availabl
July 1994 Annual Pollutant Analysis is attach
to this application for reference.

ANNUAL POLLUTANT ANALYSIS
CITY OF CHARLOTTE
MCDOWELL CREEK WWTP
NPDES# NCO036277
DULY 1994

ANNUAL POLLUTANT ANALYSIS MONITORING REQUIREMENT
REPORTING FORM A
(Revised June 1990)
I. facility Information
NPOES Permit No:, NCO036277 Discharge (Pipe) No: 103 Year:
Facility Name. City of -charlotte, McDowell WWTP Class: -2V- County: t_eckli
Person(s) Collecting Sample$: Rick Williams
Status of facility wastewater treatment operation on day of sampling: Typical : Yes X No
If no, explain briefly:
Analytical Laboratory: Surlinoton Research. Inc., (WO# 94-,08-554)
pLina
24 hr composite for main sample/grab sample for purgeable fraction
Date Sampled: (composite sample)
Sampling begun (date, tin*): Thursday, August 25,,',1994;,,0800
Sampting finished (date, time); Friday, August 26, 1994,• 0800
Corresponding sample taken for toxicity testing:
Yes X
Page 1 of 13

INSTRUCTIONS
The purpose of this document and the NC DEHNR memo of October 30, 1990 (Tedder)/maiLing of Deceff*X
ize the sampling, analysis and reporting procedures to be used for the Annual PoLlutant Analysis Moni
went as described in the permit.
Sant —Li nn
1 - Take a 24-hour composite sample from the final effluent during mid -week (Wednesday through Fridi
sample for the volatile organic fraction when collection of the 24-hour composite sample is complete(
sampling Instructions'provided-by the laboratory performing the analysis.
2 - indicate in the space provided on Page 1 of 13 this page whether a corresponding sample for toxil
3 - Make note of any unusual wastewater treatment operating conditions occurring on the day of sampt
vided on Page 1 of 13.
Anal y_si a
4 - Analyze the effluent for pollutants listed on the APAM form, including those to be identified an
tified under the 10 significant peaks rule, using appropriate EPA -approved methods for each of the a
Other analytical methods can be substituted only with prior, written approval of the Director of the
tat Management (OEM). Read and distribute to the Laboratory performing the analysis the accompanyin
1990) clarifying analytical, requirements.
5 - Identify chemicals to be analyzed for according to the 10 significant peaks rule (as described i
Pollutant Analysis Monitoring Requirement in the permit) using a GC/MS library search. Tentative ic�
ir A confirmation b standard injection is not necessary. Estimate the concentration of eac
. 1 .14. � 1 7
standard having the closest retention time.
ft2gtting
6 - Quantitation Limit Targets that should be met are listed on this Revised APAM Reporting Form A. Re
hiqher cuantition Limit and an explanation as to why the Listed quantitation limit target could not be
que, GC op�5tino s it recovery. Report the size
s
LIkz of to% Yk ttwok koA ' ...... -r.-,
(last page).
11 - Mail two completed copies of the form (and the laboratory report, if submitted to the facility on a
to: ATTN: Central Files, Division of Environmental Management, NO DEHNR, P.O. Box 29535, Raleigh, NC 276
form separately from Discharge Monitoring Reports.
Page 2 of 13

A. Purgeabte
(Votatite Organic) Fraction, EPA
'Method 624
Number of
chemicals detected in Fraction
2
Fraction
5TORET Nunber 84085
$TORET
Quantitation
Quant tation
Concentration'
GC/MS
Nxiber
Compound
Limit Target
Limit*
Detected
Confirmation? f'
-1-._-Pollut7ants to be aria yze ' or.
{u 6L)
tug/L>
(ug/L)
Yes
No
4210
Acrotein
100
2.5
NO
Yes
4 1
Acrylonitrile
100
2.5
NO
Yes
-SOW
Benzene
NO
Yes
101
sromodichloromethane
5
1
NO
Yes
104
Br form
1
NO
Yes
+ I3
BromometRane
NO
Yes
-M-or
Carbon tetraehtori e
5
1
NO
Yes
4
Chtorobenzene
6
1
NO
Yes
UM
C or et ane
NO
Yes
34 T6_
2.Chtoroethyt vinyt ether
10
1
NO
Yes
21 66 '
Chloroform
5
1
2.1
Yes
-TUM
C or t ane
ND
Yes
3210
Dibr` chtor thane
5
1
ND
Yes
44 66
1,1•Dich or ethane
5
1
ND
Yes
-0ic oroet ane`
1
ND
Yes
4.i01
1,1-0ich oroethyI a ne
5
1
NO
Yes
U46
trans-1,2•Dichtoroethylen
5
1
ND
Yes
v
, �°DTc oropropane
NO
Yes
4704
cis 1,3-5ichtoropropen
5
1
ND
Yes
46 99
trans 1, -Oichtoropr11 opene
5
1
ND
Yes
EtHy(Renzene
1
NO
Yes
44 3
Methylene chloride
5
1
NO,
Yes
4 16s
1,1, r -TetrachIoroehtane
7
1
NO
Yes
4P -
Tetras oroet y ene
ND
Yes
_3P71Q
Toluene
6
1
2.0
Yes
i4 06
,1,1-Trichtoroethane
5
1
NO
Yes
-T r I Floroet ne
ND
Yes
9180'
Trichtoroethytene'
5
1
NO
Yes
4488
lur thane
10
1
NO
Yes
'�
I—Tri-ch—torof
Viny, c on a10
NO
Yes
* tf different
rom Sluantitation limit target.
ND -None Detected.' < and < > = As per
instructions.
Page 3
of 13

A2.+other Purgeables (up to 10 highest peaks).
Identification Basis
(Check all that apply)
Probable Est. Library Match Retention
Compound Molecular Conc. Probability Time (RT) Library Manual $can
Weight (ug/L) M (Min) Match Interpretation RT Number
N> e
Complete only if non -targeted compounds are presents
Retention
Internal standard Time
(Min)
Pentafluordbenzene 1 $
1,4-Dt uorobenzene 1 .67
C orobenzene - d
1,4-Dtchtorobenene - d4 :1.45
Page 4 of 1

B- Acid Extractabte Fraction, EPA Method
625
Number of'chemicats detected in Fraction
Fraction STORET Number 455E2
STORET
QuanMat-Ton Quantitaon
Concentration
GUMS
Number Compound
Limit Target Limit*
Detected
Confirmation?
Po utants to a ana yze or,
tugJL) tug Li
(ug/L)
Yes No
2 4-C9toro-3thytphenot
—10
ND
Yes
_NSW 2 -Ch 1, orophenot
10
NO
Yes
-04 +oro eno
ND
Yes
6t! sty` 2, -Di ethy!tphenot
10
ND
Yes
4 b2,4 -016Rra snot
0
ND
Yes
•Met y - , - nitro eno
NO
Yes
4 1-Nitrophenot
10
ND
Yes
'464b 4-Nitre enot`
ND
Yes
Pentach E oro eno
ND
Yes
6 4 Phenot
1
ND
Yes
�4 11 ,6-Trick orophenot
1
ND
Yes
—r—if—differentr quantitation imit
target
ND=None Detected. '< and c > = As per
instructions.
Page 5 of 1

82. tither Acid Extractables (up to 10 highest; peaks).
Ident:ficatic
(Check all 'tht
Probable Est. Library Match Retention
Compound Molecular Conc. Probability Time (RT) Library Mar
Weight (ug/L) ( } (Min) Match Int rpr
None
Complete only if nova -targeted compounds are present:
Retention
Internal Standard Time
(Min)
1,, 4 - it i ch t orobenzene '- d4 11.85
Naphthalene
Acenap t ene h
Phenanthrene - d1Q 2r.7
Chrysne - d1 fi.5
Peryten
Page 6 of 1

C. Base/Neutrat Fraction,; EPA Method
625
Number of chemicals detected in Fraction
0
Fraction STORET Number 45583
sTORET
tivantitation
Quantitation Concentration
Number Compound
Limit Target
limit* Detected
Po `utants to a ena yz or.
tug/L)
(ug/L) tug/L)
420 Acenaphthene
10
ND
Acena-phthyLene
10
NO
41 Ant racene
10
NO
120 Benzsdtne
0
ND
"-4-5 Senz- (a) anthracene
10
NO
Benzo (a) yrene
10
NO
34 81
4 441
e
0
i,c-uacntoro nzene
IV
{
7459-
-0ic ora nzene
NO
Yes
45
1,4-Dichloro6enzene
10
ND
Yes
N1,
,-0ichtorobenzidine
20
ND
Yes
OiethyL p t a ate
ND
Yes
4 4r
Dimethyt phthalate
10
NO
Yes
q 1l
Dr--butyt phttsatate
10
ND
Yes
, ;-Di iT-t-r to I uene
1
NO
Yes
46ir
,b-Oi trotoluene
10
ND
Yes
4 6
Ti-n-octyt phtha ate
10
NO
Yes
.D e y y rezine
1
ND
Yes
4
F uoranthene
10
ND
Yes
4 81
Ftuorene '
1A
ND
Yes
Continue , ND=None Detect
<< and < > = As per 2ntructions.
Page 7 of 13

C. Base/Neutrat Fraction (Continued)
TORE?
ouantitati"on Quantatatgon
cancer+traCrora
GC/MS
Number Compound
Limit -Target Limit*
Detected
Confirmation?
T. Pollutants t be analyzed for.
tug/L) tug/L)
(ug/;L)
Yes o
700 Hexachlorobenzene
10
ND
Yes
143 11 Hexachtoro tadiene
10
ND
Yes
38-6 Hexac torocyc opentadiene
_
10
ND
Yes
—3-43W Hexach'toroethene
10
ND
Yea
440 r lndeno(l,c, cd) pyrene
10
ND
Yes
4408 isophorone
ND
Yes
_ 4 b 11 Naphthalene
10
ND
Yes
44 - Nitrobenzene
10
NO
Yes
38 N-nstrosodimethytamine
10
ND
Yes
449Fnitroso•di•n•propytamine
10
ND
Yes
344' N-nitresodi'enytamine
10
ND
Yes
Z4--6f- Phen ' threne
10
NO
Yes
463 Pyrene
10
NO
Yes
-34a 1 1, , "Trichtbrobenzene
10
ND
Yes
* l da erent r quantatation target.
ND=Nome Detected. < and < a = As per
instructions.
Page 8 of 1

C2. other Base/Neutrats (up to 10 highest peaks).
identification saw s
(Check att'that apply)
Probable Est. Library Match Retention
Compound Molecular Conc. Probability Time (RT) Library Manual scan
Weight (ug/L) (%1 (Min) Match Interpretation RT Number
None
Complete only if non targeted compounds are present.
Retention
internal Standard Time
(Min)
1 - ilichtorobenzene - d4 11.8
Naphthalene 71
Abena thene - 7dTU
Phenanthrene - d1C 26.37
Chrysene - d12 36.
Pert' ene
Page 9 of 1

*
�IaIPWnItp
1
Quanu'6�r[Iion
# #
* *
U,I VA.�t
Wt*
w #
w
* w •
t i,
� �
�
*
w
w
w
• w•
t �
w
* # •_
e w
w w
w
• #_' www
�
� �
e
• ®w ww
w
# m
e
s e
MLMM
r"r
* ww + M
M
Iw
w
Page 10 of 1

D. Pesticides (Continued).
STOREY = C crund Quatitstion Quantitation Concl
Number Limit TargetLimit* De,
Pollutants to be analyzed `for: (ug/L) (ug/L)
urganophosphorus Pesticides. EPA Method 625 808(s
95 00 ton 2.5
9 Parathion (ethyl) 0.6
E. Herbicides, EPA Method 8150
Number of chemicals detected in Fraction 0
Fraction STORET Number 00148
I
NL
1.
Y
e� �x� 0 1 I. J • !!. I n�il�' M A 1 N� NY I I I
M
>• Ye a o. x a :s
t
anic Analytical Information:
Extraction
organic Fraction Method Length x iu, titm inicxriess,
Batch` Continuous Column Type, Carrier Gas & Flow Compound Recovery'
Rate, Temperature Program
624 N/A 75m x 0. 3' 3.0 , 08-624 Bromcafluorobenzen 101
He, 5cc/min. 36 C ( Min). 1,2-ichloroethane- 100
Forgeable
C C/men. C, C/min. Totuene-68
25 X 0m x 0. 2' , 1.0" , 08-5 2'FtuorophenoL 55
Lie, 2cc/min., 40 C (4 min) Phenot'd
Acid Extractable
c,
X 30m x 0.3 1.0 , OB. , -Fluorobiphenyl 44
Base/Neutral Ext.
2cc/min., 40 t4min) Nitrobenzene-d5 66
320'C, C/min, 'Ter any -di
o
0m x 0.25ffm, 0.2 08'5, d5'Phenol 50
Example: 625 X He, 30 cm sec, 48 C (4 min) -
Acid Extractable 270 C, 10 /min
GC/MS Library size (number of reference spectra); 53 994
Page 11 of 13

ier Chemicals
iLs and Other Chemicals (as Listed below) detected in Samp
J Number 78240
6
STORET
Compound
"RENEW
2. Other Inorganics:
mut Barium 500 5 6
--- 0 -1
900 Chloride 1000 500 f i
uuieu cyanice, Zu 7 50L
-0695-1 VCtior—idi-- 100 100 830
If aifferent from qvant T-imit target
Lowest Quantitation Limit attainable by Graphite Furnace AA. Mercury analyzed by Cold Vapor Method. Zinc W%alyzed ve
Flame A and Barium analyzed by ICP/AES.
SDL = Below Detection Limit
Page 12 of 13

Anatytcat Laboratory Representatives.
Dr, David Y. Chang
9 / Senior Scientist, Chromatograhy Services; Manager
i t(
(, Vicki Stedge-
Director, inorganic Chemistry
• i ". { Date
Signed: Date;
Page 13 of 13

BFB TUNE CHECK REPORT
1986 S 846 Criteria
a a le : B 'B0829 Bade : 08 29'
can No. : 37 Ti » 13 :1 7'
♦
t

DFTPP TUNE CHECK REPORT
1986 SW 846 Criteria
- i1eDFT0901A Analysis Date 09/01/ 4
320 Analysis TiMe s 11:0
)N ABUNDANCE CRITERIA DANCE TUNE
a *•
u
# i
-•
R
w
*.

N. A.
STANDARD FOR - MUNICIPAL
SECTION III, SCHEDULED IMPROVEMENTS AND SCHEDULES OF IMPLEMENTATION
This section r oues infoffnaton on annoompleted implementation u1e which has bow imposed for construction of waste
treatment facilities. R uireme it les ma have n establishedb State, or Federal n s or y court action. I
YOU ARE SUBJECT O SEVERAL DIFFER T IMPLEMENTATION CHEDULES, EITHER BE RUSE F DIFFERENT
LEVELS OF AUTHORITY IMPOSING DIFFERENT SCHEDULES (ITEM 1 b AND/OR STAGED CONSTRUCTION OF
SEPARATE>OPERATIONAL UNITS (ITEM to), SUBMIT A SEPARATE SE TION III FOR EACH ONE.,
RA
f�Ca>
1. Improvements Required
Discharge Serial Numbers 300
Affected List the Clische,
serial numbers, assiMinby
Section 11, that are covered
this implementation schedule
b Authority imposing Require- 301a
nt Check the appropriate
hem indicating;the authority
for te Implementation schedule
It the identical implementation
schedule has bow ordered by
re than authority, check
the appropriate items. (we
instructions)
developed plan 301b E]
E
Basin Pram
State approved implementation scheduleSOS
Federal approved water quality W S
standards implementation plan
Federal enforcement procedure ENF
or action
State courtorder []CRT
Federal court order [3 FED
c. Improvement Descripcn rracter for the General on
Description in Table 1I that best cribes ft improvements required by the
a pie nta6on le. 'If more Dire dole app#ies tb the facility because
of a stacod ocrtstxuc#at edule, to tfte �a of strttiart being
here witttttt date eral actiat Subrn►t a separafe n ill for each
stage of struction planned. Alsr�, ast all the 3 racier � ' � Action} s whic�'t
descrba rn more detail the pollution tsment p s the a Implementation sdt le fires.
3-charactergeneral action 3010
descriptix
3-characters 'fic action 3o1d / t
2 Implementation Schedule and 3. Actual Complete Dates
Pro ' dates imposed by schedule and any actual dates of completion for krplementatiat steps listed below.
Indicate dates as accurately as possible. (see instructions)
Implementation Steps 2. Schedule (yrtMo/Day) 3. Actual Completion (Yr/MotD y)
a. Preliminary plan oomplete J
b. Final plan oomplete
c. Financing complete & contract 3=303c-- awarded
d Site acquired 302d__J l303d_ J 1
e, Begin construction 3020 303a— - -----
I. End construction 302f 303f-- - ——
g Begin discharge
h Operational level attained _:J

rSTANDARD FORM A —MUNICIPAL
SECTION . INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a description of oath major industrial facility dlscharging to the muntclpal system, using .a separate Section iv for each facility c3escrip,
tion, indicate the 4 digit Standard Industrial Ciassjfitation (SIC) Code for the industry, the major product or raw malarial, the flow t,n tno_
sand gallons per day), and the characteristics of the wastawatet discharged from the industrial facility into the municipal system. Consult : lbte
ilt for standard measures of products of raw matertais. (s instructions)
t. Major Contributing Facility
( instructions)
Dim tries Corporation
Name
4 to
Nu bars: Street
401b 404 Armor Street
City
401c avidson
County
401d Mecklenbura
State
401north Carolina
Zip Code
i
401f 2036
2. Primary Standard industrial
402 3545 s 3672, 3822
Classification Coda (s4e
Instructions)
Units (Set
. Principal Product or Raw
Quantity xabla ail) '-
Material '(sae instructions):
Product
4o3a printed Circuit board and
ass.
Power Supplies & Mecha ica ' i r
111
Raw Materaai
403b Electronic Components, So der45i
e
Flux, Adhesive, Coating, Lubricant.
4. Flow Inoicata the volume of water
24
discharged Inioe the municipal sys•
4044 thousand gallons Per day
tem in thousand gations per day
and whether thes discharge is inter.
4040 Dntermittont (Int) 000ntinuous(con)
ittant or continuous.
S. Pretreatment Provided indicate if
400Yes No
Pretreatment is provided prior to
entering the municipal system
Characteristics of Wastewater
(sae Instructions)
Parameter.
Narne BOD
CuI A 2 �+ r
4 a Parameiet
Number 00310
00530 01042 01051 01067 01077 01092 01034'
value 235
325 0.25 0.4 0.05 0.05 0.3 0.05
-1
This section cdnfaina;I page.
c►f> 8lIS.9il6

TAI
SECTION 17. I ►DUS RU
FOR AGENCY USr'�
4DARD FOR UNICIPAL -s
III forstandard measures of products or raw materials. (sois instructions)
t* Major Contributing Facility
(Sea Instructions)
Name 401a Ingersoll Rand Company
Numbers, Street 401b 800 A Beaty Street
Davidson
City
4011:
Mecklenburg
County
401d
State
401e
North Carolina
Zip Code
401f
2803
3563
2.
Primary Standard industrial
402
Classification Code (see
inatructlons)
Units (See
a.
Principal product or RAW
Quantity Taw* ill)
Material (See instructions)
Product
403a
Air Compressors
40
Assembly
Raw Matersat
403b
Paint and Oil
Parts and Material
4.
Flow indicate the volume of water
dc5charged into the municipal sys•
404s
thousand gallons per day
tam In thousand gallons per day
Arid whether this discharge Is Inter.
404b
Uintermittent (int) C3 continuous (con)
ittent or continuous.
S.
Pretreatment Provided indicate It
405
®Yes Mo
Pretreatment is provided prior to
entering the nntniclpal system
6.
Characteristics of Wastewater
(see instructions)
4068
406b
*Flaw and characteristics are permitted maximum allowable values,
cr
I•1
This section contains X page.
o aas.�rps :

HEN ,
ICES WASTE LOAD ALLOCATION
&A i , ,S -
PERMIT No.: NCO036277
Modeler Date Rec. #
JUL 12 1995
PE UAL
PER E NAME. Crt of Charlotte/Charlotte-
_gam yr
2
y^
¢[{$� of 4'$gg#S! "
iififl �tilSe;i<tu,v? .i.k ;#i,r
FAClL N E. McDowell Creels Wastewater Treatment facih
Drainage Are (mr
Avg. St fits f9)sfF
Facility Status: Existing_7t
1C1(cfs) Winter 7C 10 (c.fs) 0 2 (c.fs)
Pcrmit Status. Modification
Toxicity L,rrnrts.,IWC
t� �/c
Ac uitrc�r��c
Major Minor
Instream Monitoring:
Pipe No.: 001
Parameters
2{)
Design Capacity. 3.0 MCI *
Upstream ; Location �
Domestic (% of Flow): 85 %
t o ' tre Location
Industrial (°1 of Flow): 15,%
114 �
Effluent
Characteristics
Summer
WinterComments.
*TwostaLye flow increase to 3. z 6 MGD. PPA attacjh d r treat.
BOD (m )
�
infoa t returns et. CMUI has r u ste TN limit of 1 m
NH _N (mg/1)
rrt f in
3
RECEIVING STREAM: McDowell Creek
D.O. (mg/1)
j
Class, WS-III
TS (mg/1)
30
Sub -Basin. 03-08-33
F. Col. (/10 l)
200
Zo 0
Reference USES Quad. F15NW lease attach)
County: Meciclenbur
PH (SU)
Regional Office: Ntoottsvrlle ilegrc 011ttrce
Previous Exp. bate. 7/31 /6 Treatment Plant Class. class IV
3
Classification changes within three miles.
chan2e to -III and l3 at Mountain 1,
LhInd Lake.`
r
Requested by: dreg z zc.l( Late. 3/ 0/ 5
_ 4 <
Prepared. b m / mate: 3a
Coriment�s.
Revrcwecl� . Date:

-...-.. r I
E NATURAL
JUN 4 1995
FACT S FOR WASTELOAD ALLOCATION
facility Name: C'MC3-McDowell Creek WWTP Request #
DES No.: NC O036277
hype of Waste: 85% Domestic / 1 % Industrial
Facility Status: Existing
Permit Status: Renewal
Receiving Stream: McDowell Creek
Stream Classification: W -I1I
County: Mecklenbur Stream Chg=wdgi!�.'
Regional Office: M e .� USES
Reu 'tor: Niich Date:
Date of Request: 3/20/95 Drainage i ): 28.3
Topo (quad: F15NW Summer 7Q10 (cfs): 1.8
Winter 7C 10 (cfs): 4.2
Average Flow (cfs): 31
30 2 (cls):
lWC (%):72%
Wasteload Allocation Summary ' lr ; r
(approach en, correspondence with region.., EPA, etc.)
Facility is requesting renewal of existing NPDES permit with a two stage flow increase to 3.5 & 6
1 GD. Tertiary limits for the expansion flows of 3.5 and n MGD were previously determined in
July, 1994 letter. As part of a McDowell Creek watershed study, nutrient loading and eutrophic
response Mt. Island Lake has been reviewed. This WWTP is considered the largest source of
nutrient input to the Lake. Nutrient limits of 1 mgtl TP and 4 & 8 mg1l TN have been
recommended. Facility requested a TN limit of 10 mg/l , a staff review indicates that. a limit of 10
gtl TN willnot adversely p t the receiving waters and we will concur with the C D's
request. A review of metals data indicates that some permit its and monitoring requirements
should be revised and monitored through the Pretreatment LTMP.
Special Schedule Requirements and additional comments from Reviewers:,
Recommended by: a Date:6/6/95
Reviewed by
Ins scent:A Date:
Regional Supervisor: UY'14 -Date:
Pe is & Engineering:
N T} ITIU, TXXTrtl*lSERVTCS B S:

CONVENTIONAL E RS
Existint, Limits:
Monthly Average
Summer
Winter
Wasteflow (MGD):
3.0
3.0
BOD5;(mg/1):
5
11
3Ni (mg/1):
2
2
DC (mg/1):
5
5
TSS (mg/1):
30
30
Fecal Col. (/100 ml):
200
200
Residual Chlorine (gg/l):
monitor
monitor
TP (mg/1).
monitor
monitor
IN (mom):
monitor
monitor
MonthlyAverage
Summer
Winter WQ or EL
Wasteflow (MGD).
3.0
3.0
BCU5 (mg/1):
11
3N (mg/1):
2
2
IBC~} (mg/1):
5
5
° SS (mg/1):
30
30
Fecal Col. (/100 l):
200
200
pH (SU):
-
Residual Chlorine (itg,/1). '
monitor
monitor
TP (mg/1):
monitor
monitor
TN ( g/l):
monitor
monitor
Change 7Q10 data
ti
Change classifwation
Relocation of discharge
Change g wasteflow
Other (onsite toxicity study, interaction,
etc.)
Instream, data
New regulations/standards/procedure
New facility information

3
TOXICS/METALS
Type of Toxicity Test: Chronic Ceriodaphnia P/F
Existing Limit 72%
Recommended Limit: 72%
Monitoring Schedule: JAN APR JUL OCT
Existing Limits
Daily Max.
Cadmium (ug/1): 2.8
Chromium (ug/1): monitor
Copper (ug/1): monitor
Nickel (ug/1): 35
Lead (ug/1): 35
Zinc (ug/1): monitor
Cyanide (ug/1): 6.9
Chloride (mg/1): monitor
Fluoride (mg/1): 2.5
Silver (ug/1): monitor
Recommended Limits
Daily Max. WQ or EL
Cadmium (ug/1): 2.8
Mercury (ug/1) monitor
Copper (ug/1): monitor
Lead (ug/1): 35
Zinc (ug/1): monitor
Cyanide (ug/1): 6.9
Chloride (mg/1): qrtrly monitoring
Fluoride (mg/1): qrtrly monitoring
Limits Chan-ges D_W_T_Q, Parameter(s) Affected
Change in 7Q 10 data
Change in strearn classification
Relocation of discharge
Change in wasteflow
New pretreatment information
Failing toxicity test
Other (onsite toxicity study, interaction, etc.) Ni, Cr,,Hg will be
monitored in the
Pretreatnient LTMP
Ag-will be dropped
X Parameter(s) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitadons for additional dischargers within this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

4
If n(
rs cannot be met?
L;UX;VIIIUIUIIUdUvIIN.-
why not?
or Conditions
Wasteload sent to EPA? (Major) — (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not mod(
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? — (Y or N) If yes, explain with attachm(

.testing(witl" 36 days of initial monitoring event). Failure to submit suitable test results4ill constitute
)ncompliance with monitoring repirements.
�10 1.8 cfs
,rmitted Flow 3.0 — MGD Redinnmended by:
VC 72_ %
asin & Sub -basin CTB33
eceiving Stream McDowell Creek
ounty Mecklenburg /Date I6l95
CL Ply' Version 9191

'5'TE LOAD ALLOCATION
Modeler
Dam Rec. #
pERMrr No.: NCO036277
PERMITTEENAME. City of Charlotte/Charlotte-Mecklenburg Util.
2
FACILrrYNAME: McDowell Creek Wastewater Treatment facility
Drainage Area(mi
Avg, Strearnflow (cfs):
Facility Status: Existing
7QIO (cfs) Winter 7Q10 (cfs) 30Q2 (cfs)-
Permit Status: -Mod ffleati, on
Toxicity Limits: IWC
% Acut(!?Cf��onic
Major or
Instrearn, Monitoring:
fu*t4��__
Pipe No.- 001
Parameters
Design Capacity.- 10 MG1 z 3.:%,4JC,-P
Upstream
Locationvi
Domestic (% of Flow): 85%
Downstream
Location
Industrial (% of Flow): 15%
Effluent
Characteristics
Summer Winter
Comments:
*Two stage flow increase to 3.5 & 6 MGD. PPA attached. oretreat.
BOD
in not returned etw C qUD has reaueseed a TN -limit of 10 maA
_(rno)
NH -N (mg/1)
D.O. (mg/1)
RECEIVING STREAM: McDowell Creek
Class: WS-111
TSS (mg1l)
30 30
Sub -Basin: 03-08-33
F. Col. (/100 ml)
2oO ?,00
Reference USGS Quad-, F15NW (please attach)
pH (SU)
County. Mecklenburg
Regional Office: Mooresville ReTonalOffice
4",4kA
Previous Exp. Date: 7/31/96 Treatment Plant Class: class I
tfrAA_
Classification changes within three miles:
char Lye to WS-111 and, B at M untain I tan A Lak,.
c
33
ited by-) Care 1
A
V
/In
Nizic Date: 3/20/95,','
Date.; (,13olfi' Comments:
Date:
5

FACT SBEFI
Facility N e: CM
DES No. NCO03 �2
_—_ ,x_. new �
x
Regional'
:11 Indusuial
+ U
Date
Dra
Sum
wits
Ave'
30Q
i lB a
8268 (b)
Datea
Date:
—Date:
dOk

2
PPPPP"' CONVENTIONAL PARAMETERS
its.
Monthly Average
Summer Winter
astaftow (MG1 ): 3 3.0
3N (mg/1. 2
O (mg/1): 5
TSS (mg/1): 30 3
Fecal Col. (/100 ml): 200 200
H (SST): 6- i-
Residual Chlorine (Rg/1): monitor; monitor
TP (mg/1): monitor monitor
TN (mg/1); monitormonitor
Recommended Limits:
Monthly Average
Summer Winter WQ or EL
Wasteflcow (MGD): 3.5 .
BCO5 (mg/1). 5 ` 11
3N (mg/1): 2' 2
IBC) (mg/1): 5 5
TSS (mg/1): 30 30
Fecal Col. 000 ml): 200 200
pH (SU): 6-9 6-9 W-001 4,T04a
Residual Chlorine (�Lg/l): 22 22 '
TP (mom)=„
(mg/1):
Limits h n 11 Parameter(s) Affected
Change in'7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflw
Other (onsite toxicity study, interaction, etc.)
Instrearn data
New regulations/standards/procedures
New facility information
(explanation of any modifications to past modeling analysis including new flaws, rates, field data,
interacting discharges)
(See page 4 for miscellaneous d special conditions, if applicable)

3
TOXICS/METALS
T of Toxicity Test: ChronicC�eriodaphnia P/F
Existing Limit: 72%
Recommended Limit: 76%
Monitoring Schedule: JAN APR JUL OCT
ExistinLy Limits
Daily
Cadmium (u/1), 2.8
Chromium (ug1l): monitor
{topper (ug/1); monitor
Nickel (ug/1.) 5
Lead (ug/1). 3
Zinc ( 1l): monitor
Cyanide (ug/1): 6.9
Chloride (mg/1): monitor
Fluoride (mg/1): 2.5
Silver ug/1). monitor
Rrnimen irr3its
Tully Max. WQ or EL
Cadmium (ug/1): 2.6
Mere (ug/1) monitor
Copper ugii ; monitor
Lead (g/1); 33
.';zinc (ug/1): monitor
Cyanide (ug/1): 6.6
Chloride (mg/1): grtrly monitoring
Fluoride (g/1): qrtrly monitoring
L` P meters) Affected
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
New pretreatment information
Failing toxicity test
Other (onsite toxicity study, interaction, etc.) Ni, C:r„ 1-1g will be
monitored in the
Pretreatment LTMP
Ag-will be dropped
Parameter(s) are water qualitylimited. For some parameters, the available toad capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.
O
No parameters are water quality limited, but this discharge may affect future allocations.

ppppp"
INSTREAM MONITORING REQUIREMENTS
UpstreamLocation: @ Beanies Ford Road
Downstream ation: @ Neck Road
Parameters: Temperature, DO, 'Fecal Coliforin, Conductivity
Special instrewn monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS'
Adeouaev of x
Has the facility demonstrated the ability to meet the proposed now limits with existing trea ent
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing " of the new limits be appropriate? "Yes No
If yes, please provide a schedule (and basis for thatschedule) with the regional
office recommendations:
If no, why not?
Wasteload sent to EPA? (Major) (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.

NPDES WASTE LOAD,
PERMIT NO.: NCO036277
P 1"1"l EE: City of Charlotte/Charlotte-MecklenbELILta1.
Facility Status; Existing
Permit Status: ' .
C
Major
Minor
Pipe No.: 001
Design n Capacity: 3.0 MG2 = .d
Domestic ( of Flaw): 5 %
Industrial ( ems of Flaw): —15 To
Comments:
*Two sta2e flaw increase to 3.5 & 6 MG . PP':A attached retreat.
inf" ntat retu e et f M has e nested a limi of 10 m
irrs: ad f the � in e 1�mits later ��e ° tt�iclrrrrertts .
RECEIVING • McDowell Creek
Class: WS-111
Sub -Basin: 03-08-33
Reference USGS Quad: F15 (please attach)
County. Mcklenbur
Regional Office: Moor sville lac icarral Office
Previous Exp. Tate: 7/31/ 6 Treatment Plant Class: class IV,;
Classification changes within three miles:
chgnge t WS-IITT and � at Mountain Island lake.
Requested y: Cire Ni riles Tate -
Prepared b: bate.
Reviewed . Data:
�_ 7. xta
Ifs (fs) Winter 7Q10 (cfs) ', - 30Q2 (cl's)
:icity Limits: IWC % Acute/ hEic
rearn Monitoring:
Parameter
Upstream Location
Downstream Location
O t ent Summer Winter
Characteristics
BOD (m ` ) ' r'
NH - (g/1)
.0. (mg/1)
FSS (mg/1)
{. Col, (/100 MI)
z.0 ,
)H (SU)
ZO
f.

FACT SHEET OR WAS LO
pe of Waste:
85% Domestic l 15% Industrial
acility Status:
Existing
t Status:Renewal,/
'" $�r
eceving Stream:
McDowell Creek
trearn Classification:
WS-lll
ubb in.
030833
`aunty:
Mecklenburg
.egio alOfpce:
Mooresville
USGI
.eque"tor:
Ni ich
Date -
late of Request:
3/2(V95
Drain
`ep r Quad:
F15NW
Surrin
W` t
Avery
30C2
AVC a
a

2
CONVENTIONAL ER
Existing 11 I.
Monthly Average
Summer Winter
Wasteflow (MGD). 3.0 3.0
BOD5 (mg/1): 5 11
N113N(mg/1): 2 2
DO (g/l=
"TSS (mg/1): 30 30
Fecal Col. (/10 ml); 200 20
pH (SU): -9 6-
Residual Chlorine (p.g/1)a monitor monitor
TP (mom): monitor monitor
IN ( g/1): monitor monitor
i
Monthly Average
Summer Winter WQ or EL
Wasteflow (M ai:) 6.0 6.0
BOD5 (rngft 5 10 WQ
3N (mg/f): 2 2.5 WQ
DO (mom): 5 5 WQ
TSS (rng 1); 30 30
Fecal Col. (/100 rnl): 200 200
Residual Chlorine (µg/1):
TP (mg/l)w
TN ( gtl)A IV
Limits'Chanees Due To- Parameter(s) Affected
Change in'7Q1CM data
Change in stream classification
Relocation of discharge
Change in wasteflow BOD5, NH3
Other (onsite toxicity study, interaction, etc.)
Instream data
New regulations/standards/procedures
New facility information
(explanation of any modifications to past modeling analysis includingnew flows, rates, field data,
interacting es)
(See page 4 for miscellaneous d special conditions, if applicable)

3
TOXICS/METALS
Type of To;
ExistingLid
Recommen
Monitoring
72%
mit. 85%
lute: JAN APRJUL OCT
Daily Max.
.8
monitor
monitor
35
35
monitor
6.
monitor
2.5
monitor
2.4 Daily Max.WQ WQ or EL
monitor
monitor
30 WQ
monitor
fZ6 S.WQ
qrtrly monitoring
qrtrly monitoring
Pullm—
mification
rge
v
formation
study, interaction, etc.) Ni, C T
moat
Ag-
O
o parameters are water quality limited, but this discharge may affect future a

4
INSTREAM MONITORING QL
Gips mLocation: @ Beatties Ford Toad
Downstream Location: @ Neck Road
Parameters: Temperature, DO,Fecal Coiifo
Snecial instrearn monitoring locations or monitoring freon :nr.
MIC
Has the facility demo
facilities? Yes
If no which
Would a "phi
If yes
office
O
s cannot be cat?
f the new limits be appropriate
°+vide ai schedule (and basis fot
ndation:
n
tv Ar

- Definition of "daily"- This is defined in NCAC 15A 2B .0503(5) as every day on which a
discharge occurs excluding weekends and legal holidays.
Conductivity sampling frequency - Daily monitoring is specified per NCAC 15A 2B M08(d)
for class IV treatment facilities.
- Removal of ;-,-Otal residual chlorine limit/monitoring requirement - A footnote has been added
stating that the limit and monitoring are not applicable if the effluent is chlorinated. The limit must
remain since it is applied to all facilities Statewide upon expansion.
# Point when limits become effective - Division policy requires limits for expanded flows (3.5
MGD and 6.0 MG D in this case) to take effect once an authorization to construct (or operate) is
given and modifications are complete.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

• Reporting Requirement in Part Il, Section E.6.b. (3) - This section is interpreted to mean 24
hours from the time the permittee is aware of the violation.
- Public notice requirement - Part III, Condition J changes the two months specified in Part 111,
Condition B. 11. to six months as requested.
- Chronic Toxicity Testing - Partffl, Conditions G, H and I have been changed to the Phase 11
test as requested.
If any parts, measurement frequencies or sampling requirements contained in this permit are
to VnIl %IfUl 111AUA th'a 14(yht to qtl qfGIA;I-qf7Arp hA'Ar;na tynnn tvrittpn rpmipct uAthin thirtv
(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, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless
such demand is made, this decision shall be final and binding.
Please take notice this permit is not transferable. Part U, E.4. addresses the requirements to be
followed in case of change in ownership or control of this discharge.
This permit does not affect the legal requirements to obtain other permits which may be required by
the Division of Environmental Management or permits required by the Division of Land Resources,
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 Mr. Greg Nizich at telephone
number 919/733-5083, ext. 541.
Sincerely,
Origin8l Signed 13Y
t)avid A. Goodrich
A. Preston Howard, Jr., RE
cc: Central Files
Mr. Roosevelt Childress, EPA
te I I Wen bWu r g4County
Facility Assessment Unit
Aquatic Survey & Toxicology Unit
Technical Assistance & Certification Group
Permits and Engineering Unit

Permit No. NCO036277
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL
0, "
DIVISION OF ENVIRONMENTAL MANAEME )N ` ;,;„
ERI--IT
TO DISCHARGE WASTEWATER UNDER THE
VIVIS,mv at ENY1#6
NATIONAL P L TANT I lMI TI
In compliance with the provision of North Carolina General Statute:143-21 .1,
ether lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal 'water Pollution Control Act, as
ended,
Charlotte Mecklenburg Utility Department
ment
is hereby authorized to discharge wastewater from a facility located at
McDowell Creek Wastewater Treatment Plant
NCS. 2074
near the Town of l-Iuntersville
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.
This permit shall become effective November 1, 1995
This permit and authorization to discharge shall expire at midnight can September 30, 2000
Signed this day October 2, 1995
Original I
Davido rie
A. Preston Hoard, Jr., P.E., Iireetor
Division of Environmental Management
By Authority of the Environmental Management Commission

Permit No. NC(103 277
SUPPLEMENT TO PERMIT COVER SHEET
City of Charlotte/Charlotte-Mecklenburg Utility Department
is hereby authorized to:
I. Continue to operate the existing 3.0 MGD wastewater treatment facility
consisting of manual bar screens; grit removal, influent pumping, primary
clarifiers, trickling filters, first stage aeration, intermediate clarifiers, second
stage aeration, final 'clarifiers, aerated polishing pond and chlorination located at
the McDowell Creek Wastewater Treatment facility, on Sit 2074, Neck Road
near the Town. of Huntersville, Mecklenburg County (See mart III of this
Permit), and
2. After receiving an Authorization to Operate from the Division of
Environmental Management increase wastewater flaw from the existing plant to
3.5 MGD, and
. After receiving an Authorization to Construct from the Division of
Environmental Management construct and operate a Ertl MGD treatment
facility, and
3. Discharge from said treatment works at the location specified on the attached
map into McDowell Creep, classified as WS-IV waters in the Catawba River'
Basin.

..,� � q �.. +' �,""�._-�.� „� �. ^•�,.�`_"" � �,�.��""` ,,., a �''•"� � ,'�:;,.d° f a� k , `�......
AA
u,ot caw
756 —
if
L X
\t4
co
750
ASTPN "CC)
✓ ' t i,y
p
j
�m �. ��✓ :: ",w'"' " x mow^ s°','�, �} .. ��"'�� 4. t � �� � �^�' �'.
.mow" r �„,_-„..,.-•�' "" �„ ,..„ s 1 �„^,` -.. _
'Allison Perm67,
r r �C BN
_ N
71
Ural -Hor—
�j w,. � � •-.~;� ,,, �, �,�.,. f ,,•, �•, Y� dye � }1t 1�� �' � � �^•�� i �',�� i!
� ,, � '" r.� �,. ",,�� �`�'''.7 �''f ' , ,�a4.� ,1 � �,,"""'�-- �,✓� r . 1 r�cs • e C�` �,�� . r'tr i}
K-'" ��=4 ".-- ,' f ° � '✓'� ,ter �-�`"' }``"'^,, f j •.,-�*..-'„ •'✓r�4 ""' , `� +
T p
SC3 7"30" $04 1 $05 (PAW CREEK) 506 567 55
0854 IV
SCALE 1: 4000
�k 6 1 MILE
tANWes_
� FGn Iu' 4040 200C, AOX 5w, 6COS 7w SEE"
1 E; r,
53 MtLS , C,* 2'
CONTOUR INTERVAL 10 FEET
DATUM, IS MEAN SEA k,EVEC �
I
PIZ ANC 1570 M4GNE'.T NOPP�
TH+ -c MAP
70F SALE By U S,,,<-

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April I - October 31) Permit No. N00036277
During the period beginning on the effective date of the permit and lasting until EXPANSION ABOVE 3.0 MOD or expiration, the pert-nittee is
authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent _Characteristic Discharge Limitation, Monitoring c
Measurement BAni"t S a m D le
Monthly Avg WsAktY--AY-q- DaRy—M" ftqayArmy Ly" L9—C- a It l -0- P
Flow 3.0 MGD Continuous Recording I or E
BOO, 5 day, 200C** 5.0 mg/l 7,5 mg/IDaily Composite E, I
Total Suspended Residue" 30.0 mg/l 45.0 mg/l Daily Composite E, I
NH3 as N 2.0 mg/l Daily Composite E
Dissolved Oxygen *** Daily Grab E, U, D
Fecal Coliform (geometric mean) 200.0/100 ml 400.0 /100 ml Daily Grab E, U, D
Total Residual Chlorine Daily Grab E
Temperature Daily Grab E,U,D
Total Nitrogen (NO2 + NO3 + TKN) Monthly Composite E
Total Phosphorus Monthly Composite E
Chronic Toxicity**** Quarterly Composite E
* Sample locations: E - Effluent, I - Influent, U - Upstream at Beattie s Ford Road, D - Downstream at Neck Road
Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during June, July, August,
and September and once per week during the remaining months of the year.
The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value
(85% removal).
The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
Chronic Toxicity, Phase 11 at 72%;January, April, July, October; See Part 111, Condition G.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard unit-, and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April I - October 3 1) ;
Permit No. NCO036 77
During the period beginning on the effective date of the pertnit and lasting until EXPANSION ABOVE 3.0 MGD or expiration, the P rmitt -, is
authcri zed to discharge from outfall() serial number 00l'. (Continued)
Effluent Characteristic ilis har a Limitation.-
fiteasuremni—
ErVAUSAILY
Locab9n
Conductivity
Daily
Grab
E,U,D
Cadmium 2.8 µ /i
Weekly
Composite
E
Cyanide 6A Itg/l
Weekly
Grab
E
Lead 35O 8 gll
Weekly
Composite
E
Mercury
2/Month
Composite
E
Copper
2/Month
Composite
E
Zinc
2/Month
Composite
E
Chloride
Quarterly
Composite
E
Fluoride
Quarterly
Composite

A. (' ). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November l - Match 31) Permit No. NC0036277
During the period beginning on the effective date of the pennit and lasting until EXPANSION ABOVE 3.1 MGD or expiration, the ire `mittec is
authorized to discharge from outfallts serialnumber 001. Such discharges shall be limited and monitored by the permittee as specified below.
Effluent Characteristic Dischar a Limitation., Monitoring Re_qMjLeis
MAAAMr.
thly Avg Weekly---"v [ aily [fax fC 11JqP
Flow 3.0 MGD Continuous Recording I or E
BOO, 5 day, 200C** 11.0 mg/1 16.5 mg/I Daily Composite E, I
Total Suspended Residue" 30.0 m /I 45.0 mg/l Gaily` Composite E, I
NH3 as ! 2.0 mg/I Daily, Composite E
Dissolved Oxygen' *** Daily : Grab E, U, R
Fecal Coliform (geometric mean) 200O /100 ml 400.0 /100 ml Daily, grab E, U,
Total Residual Chlorine Daily" Grab E
Temperature Daily Grab E,U,D
Total Nitrogen (NO2 + NO3 + TKN) Monthly Composite E
Total Phosphorus Monthly Composite E
Chronic Toxicity°*** Quarterly Composite E
Sample locations: E - Effluent, I - Influent, U - Upstream at l eatties Ford Road, D - Downstream at Neck Road
Upstream and downstream samples shall be grab samples. Stream samples shall be collected three tunes per week during June, July, August,
and September and once per week during the remaining months of the year,
* The monthly average effluent BOD5 and 'Total Suspended Residue concentrations shall not exceed` 15 l of the respective influent value
(85% removal).
* The daily average dissolved oxygen effluent concentration shall not be less than 5.0 rng/l.
* Chronic Toxicity, Phase 11 at 72%;January, April, July, October; See Part 111, Condition G.
The pH shall not be less than 6.0 standard units nor ,greater than 9.0 standard units and shall be monitored duly at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts:

A. (. EFFLUENT ` LIMITATIONS AND MONITORING EQVIREME S WINTER (November i - March 31)
Permit No. NC 003627
During the period beginning on the: effective date of the permit and lasting until EXPANSION ABOVE 3.0 MGD or expiration, the Pennittee is
authorized to discharge from outfall(s) serial: number 001 (Continued)
Effluent Characteristic Discharge L.im'itationr
Monitoring
Reguirements
Conductivity
Gaily
Grab
E, ,D
Cadmium 2.8 ttg/l
Weekly
Composite
E
Cyanide 6.9 R g/1
Weekly
Grab
Lead 35.0 g/1
Weekly
Composite
Mercury
2/Month
Composite
Copper2/Month
Composite
E
Zinc2/Month
Composite
Chloride
Quarterly
Composite
E
Fluoride
Quarterly
Composite
E

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Summer (April I - October 31.) Permit No. NCO036277
During the period Beginning upon EXPANSION ABOVE 3.0 MGD and lasting until EXPANSION ABOVE 3.5 MGD or expiration, the
Perm ttee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as
specified below.
Effluent Characteristics ) a l i onn a Monitorinauir` is
Nleasurgn-Mt Samnle
Monthly. - v_g. W—e—e i Avg. Dail MAX. fj"Mgncy � e t ocation
Flow3.5 MGD Continuous Recording I or E
BOD, 5-Day, 011C** 5.0 mg/l 7.5 mg/l Daily Composite 1,E
Total Suspended Residue" 30..0 mg;/l 45. mg/l Daily Composite 1,E
NH3asN 2.0 mg/l DailyComposite E
Dissolved Oxygen` Daily Crab E,U,D
Fecal Colifor (geometric mean) 200 /100 ml 40 /100 ml Daily Grab E,U,D
Total Residual Chlorine Daily Grata E
Temperature Daily Grab E,U,D
Total Nitrogen (N t + N + TKN) Monthly Composite E
Total Phosphorus Monthly Composite E
Conductivity Daily Grate E,U,D
Chromic Toxicity***" Quarterly Composite E
* Sample locations; E - Effluent, I - Influent, U - Upstrearn at Beatties Ford Road; D - Downstream at Neck Road. Upstream and downstream
samples shall be grab samples. Stream samples shall be taken three times per weep during the months of June, July, August and September, and
once per week during the remaining months of the year.
** The monthly average effluent BO 5 and Total Suspended Residue concentration. shall not exceed 15% of the respective influent value (5
removal).
*` The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/lr
**** Chronic Toxicity, Phase lI at 76%; January, April, July and October; See fart III Condition H.
The pH shall not be less than: 6.0 standard snits nor greater than 9.0 standard units and shall be monitored daily by grab sample at the effluent,
There shall be no discharge of floating solids or visible foram in other than trace amounts,

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Summer (April I - October 31)
Permit No. NCO036277
During the period beginning upon EXPANSION ABOVE 3.0 MGD and lasting until EXPANSION ABOVE 3.5 M GD or expiration, the
Permittee is authorized to discharge from outtall(s) serial number W1. (Continued)
fflu Ch "kcsO
is
Measurement
_ on h W eklv Ava. DailDailv Max.
!;Y_
, _ LAqALL9P
Cadmium 2.6 1$ ll
Weekly
Composite`
Lead 33.0 11'
Weekly
Composite
E
Cyanide 6.6 p /l
Weekly
Crab
E
Mercury
2/Month
Composite
Copper
2/Month
Composite
E
Zinc
2/Month
Composite
E
Chloride
Quarterly
Composite
E
Fluoride
Quarterly
Composite
E

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS S Wier (November 1 - March 3 1) Permit No. NC( ):.3627°7�
During the period beginning upon EXPANSION ABOVE 3.0 M D and lasting until EXPANSION ABOVE 3.5 MCIJ or expiration, the
Permittee isiauthori ed to discharge from outfall() serial number (X)I. Such discharges shall be limited and monitored by the perrmttee as
specified below:
Effluent Charade is-ttcs Discharae Lirititatla a Monitorina RequirgipgAts
Measurement �Sample *S �
Monthly. Ajq Weeklv _ it --Max. - "l
Flow 3.5 Continuous Recording I or
ROD, 5-Day, 200C** 11.0 mg/l 15. mg/l Daily; Composite 1,
Total Suspended Residue" 30.0 mg l 45.0 mg/1 Daily Composite 1,E
NH3a N 2.0 mgtl Daily Composite
Dissolved Oxygen.** Daily Crab E,U,D
Fecal 'Coliforrn (geometric mean) 20 /1 0 ml 400 /100 ml Daily Grab E,U,D
Total Residual Chlorine Daily Crib E
Temperature Daily Crab E,U,D
Total Nitrogen (NO2 + NO3 + TK) Monthly Composite E'
Total Phosphorus Monthly Composite E
Conductivity Daily Crab E,U,D
Chronic Toxicity'**" Quarterly Composite E
Sample locations: E - Effluent, I - Influent, U - Upstream at Beatties Ford Road; D - Downstream at Neck Road. Upstream and downstream
sampler shall be grab samples. Strum simples shall be taken three tunes per week during the months of June, July, August and September,
and once per week during the remaining months of the year,
**Tie monthly average effluent BOD5 and Total Suspended Residue concentration shall not exceed 15° of the respective influent value (S
removal),
The daily average dissolved oxy en effluent concentration shall not be less than .(I m /l.
*** Chronic Toxicity,; Phase Il at 6 ; January, April, July and October; See Part III Condition H.
The pH shall not be less than 6.0 standard units nor ,greater than .Q standard units and shall be monitored daily by grab sample at the effluent.
There shall be no discharge of floating solids or visible foam in ether than trace amounts:

A.(). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Winter (November I - M xh 31)
PertnitNo.NCO036277
During the period beginning upon EXPANSION ABOVE 3.0 MGD and lasting until EXPANSION ABOVE 3.5 MOD or expiration, the
Perrnittee is authorized to discharge from outf ll(s) serial number 001. (Continued)
Effluent r to `gyps Discharge Limitalios
Monitoringis
Me ur+ ment
91
M Y. -A". Weeklv Ava. ©I% Max.
.ensy-_
— n
A
Cadmium 2.6 tog/1
Weekly
Composite
E
Lead 33.O ,[ gll '
Weekly
Composite
E
Cyanide 6.6 pll
Weekly,
grab
Mercury
2/Month
Composite
E
Copper
2/Month
Composite
E
Zinc
2/Month
Composite
E
Chloride
Quarterly
Composite
Fluoride
Quarterly
Composite
E

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Summer (April 1- October 31) Permit No. N (X)3Cr277
During the period beginning upon EXPANSION ABOVE 3.5 MOD and lasting until expiration, the Permittee is authorized to discharge
from outl'all(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent C h a ra ct e djsALcs ter s Monitoring Requirements
t Sarnole I31I
Monthly. _Ayq. We I ` Ay- . Daily Max. Freauencv i"
Flaw 6.0 MGD Continuous Recording I or E
E3OD, 5-Day, 200C"" 5;0 mg/1 7.5 mg/1 Gaily Composite 1,E
Total Suspended Residue*" 30.0 mg l 45.0 mg/1 Daily Composite 1,E
NH3as N 2;0 mg/I Gaily Composite E
Dissolved Oxygen*"* Daily Grab E U>C
Fecal Coliform (geometric mean) 200 /100 ml 400 /100 ml Daily Grab E U,D
Total Residual Chlorine 22.0 Frg/ + Daily Grab E
Temperature Daily Grab E,U,D
Conductivity Gaily Gran E„l ,D
Total Nitrogen (NCB + NO3 + TKN) 10.0 mg/I Weekly Composite E
Total Phosphorus1.0 mg/1 Weekly Composite E
Chronic Toxicity""*• Quarterly Composite E
* Sample locations: F - Effluent, I - Influent, Ll - Upstream at BeattieBeatties Ford Road; D - Downstream at Neck Road. Upstream and downstream
samples shall be grab samples. Stream samples shall be taken three times per week during the months of June, July, August and September,
and once per weep during the remaining months of the year.
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (8 %
removal).
' * The daily average dissolved oxygen effluent concentration shall not be less than 5.0 gfl*
*** Chronic Toxicity, Phase FI at 8 %; January, April, July and October; See fart Ill Condition I
+ Limit and monitoring apply only if the effluent is chlorinated:
The pH shall not be less than 6.0 standard units nor greater than .0 standard units and shall be monitored daily by grab sample at the effluent,
There shall be no discharge of floating solids or visible foram in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Summer (April I - October 31)
permit No. NCO036277
During the period beginning upon EXPANSION ABOVE 3.5 MGD and lasting until expiration, the Pertnittee is authorized to discharge
from outfall() serial number Wl . (Con hued)
Effluent Chara+ctelstl+cs © at
is
Me tAt la
"
Monthly,, AVp. Weektv
ova. Dailv MaX. fteguensy--
n
Cadmium
2.4 µg/l Weekly
Composite
Lead
30.0 p g / l Weekly
Composite
Cyanide
5.9 R /l Weekly
grab
Mercury
2/Month
Composite
F
Copper2/Month
Composite
Zinc
2/Month
Composite
E
Chloride
Quarterly
Composite
E
Fluoride
Quarterly
Composite
F

A.(). EFFLUENT LIMITATIONS ION a NIT RING REQUIREMENTS Winter (November 1- l rch l) PertnitNo.NC(X)36277
During the period beginning upon EXPANSION ABOVE . MGD and lasting until expirations the Permittee is authorized to discharge
from outfall(s) serial number (ill, Such discharges shall be limited and monitored by the e ittee as specified below.
Eff l C s Monitoring< is
g_m4 m_e t San le le
Monthly. .."v Weeklv Ava. [laity MAC.. Fr UM911cv — U
Flow 00 WGD Continuous recording I or E
BOD, 5-Day, 20"C** 10.0 mg/I 15.0 mg/1 Daily Composite 1,
Total Suspended Residue** 30.0 mg/l 45.0 mg/1 Daily Composite I,
NH3 as N 2.5 mg/1 DailyComposite E
Dissolved Oxygen'*' Daily Grab EU,D
Fecal Colitorm (geometric mean) 200 /100 ml 400 /100 ml Daily Grab EU,D
Total Residual Chlorine 220 jg/i+ Daily Grab E
Temperature Daily Grab E,U,D
Conductivity * Grab EU,D
Total Nitrogen (NO2 + NO3 + TI N) 10.0 m /I Weekly Composite E
Total Phosphorus 10 mg/1 Weekly Composite
Chronic T xicity***" Quarterly Composite E
* Sample locations: E ->Effluent, I - Influent, U - Upstream at Beatties Ford Road, D - Downstream at Neck Road.; Upstream and down, stream
samples shall be grab samples. Stream samples shall be taken three times per week during the months of June, July, August and September,
and once per week during the remaining months of the year.
**'[be monthly average effluent BODS and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85
removal).
*** The daily average dissolved oxygen effluent concentration shall not be less than 5.0 g/l.
*** Chronic Toxicity, Phase II at 85%; January, April, July and October, See Part III Condition I.
+ Limit and monitoringapply only if the effluent is chlorinated.
The pH shall not be less than 6.0 standard units nor greater than .0 standard units and shall be monitored daily by grab sample at the effluent.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Winter (November I - M
During the period beginning upon EXPANSION ABOVE 3.5 MG D and lasting until expiration, I
from outfall(s) serial number Wl. (Continued)
Effluent Char4glff jstjcs Disc harSjg,___jLLMjLgjj"s
M-4
Monthly., -Ay-9. Week1v Ava. Daily — — Max. f
Cadmium 2.4 gg/l
Lead 30O it
Cyanide 5.9 jtg/l
Mercury
Copper
Zinc
Chloride
Fluoride
rch3l) PermitNo, NC0036277
e Permittee is authorized to dischatge
Monitorina
Reauir
ts
LAML=gAt
—SAMPIP—
!AAMAJ-9
Lqu"Sy—
eekly
IYM—
Composite
Lk"Al"
E
eekly
Composite
E
eekl
Grab
E
'Month
Composite
E
'Month
Composite
E
'Month
Composite
E
uarterly
Composite
E
uarterly
Composite
E

PART I
1. The permittee shall comply with, Final Effluent Limitations specified for discharges in
accordance 'th the following schedule:
Permittee shall comply with Final Effluent Limitations by the effective date of the pennit unless
specified below.
2. Permittee shall at all times provide the operation and maintenance necessary to operate the
existing facilities at optimum efficiency.
. No later t 14 clu-MIMF
the permittee shall submi
required by identified da
case., the notice shall incli
probability of meeting the

() For a partnership or sale proprietorship: a general partner or the proprietor,
respectively; or
() For a municipality, State, Federal, or other public agency: by either a principal
executive officer or ranking elected official.
b. All reports required by the permit and other information requested by the Permit Issuing
Authority shall be signed by a ,persondescribed above; or by a duly authorized
representative of that person. A person is a duly authorized representative only if:
(l) 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 y individual occupying a named position.); and
3) The written authorization is submitted to the Permit Issuing Authority.

Part
Page S of 1
°
e permittee shall at all times properly operate and maintain all facilities and systems of
treatment and control d related appurtenances) which are installed or used by the perminee to
achieve compliance with the conditions of this permit. Proper operation and maintenance also
includes adequate laboratory controls and appropriate quality assurance procedures. This
prevision requires the operation of back-up or auxiliary facilities or similar systems which are
installed by a permittee only when the operation is necessary to achieve compliance with the
conditions of the permit.
.
t shall net 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,
4.
a. Definitions <
(1) "Bypass" means s the known diversion of waste; streams from any portion of a treatment
facility including the collectionsystem, which is not a designed or established or
operating mode for the facility.
(2) "Severe property age" means 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 damaged s not mean economic loss caused by
delays in production.
b. Bypass not exceeding limitations.
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 P graphs c. and d. 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;
including evaluation of the anticipated quality and affect of the bypass.
(2) Unanticipated bypass. The permittee shall submit notice of an unanticipated bypass as
required in Part II, E. . of this permit. 4 hour notice).
d. 'Prohibition of Bypass
(I) Bypass is prohibited and the Permit Issuing Authority may take enforcement action
against a perTnittee 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

Part R
Page 12 of 1
8.
e permitpermittee shall allow the Director, or an authorized representative (including an authorized
contractor acting as a representative of the Director), upon; the presentation of credentials ` d
ether documents as may be required by law, to
a. Enter upon the ittee"s premises where a regulated facility or activity is located or
conducted, or where records must be kept Lander the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the
conditions of this permit;
c. Inspect at reasonable times any facilities,equipment (including monitoring and control
equipment), practices, or operations regulated required under this 't; and
d. Sample or monitor at reasonable times, for the purposes of assuring peit compliance or
as otherwise authorized by the Clean Water Act, any substances or parameters at any
location.
SECTION
1. ' rt Div x
All discharges authorized herein shall be consistent with the terms and conditions of this
permit. The discharge of any pollutant identified in this permit more frequently than or at a
level in excess of that authorized shall constitute a violation of the permit i:
2. Mallad
x =
e permittee shall give notice to the Director ass ' n as possible of any planned physical
alterations or additions to the permitted facility. Notice is required only when:
a. The alteration or addition to a permined facility may meet one of the criteria for determining
whether a facility is a new source in 40 CFR Part 122.29 (b); o
b. The alteration or addition could significantly change the nature or increase the quantity of
pollutants discharged, Ibis notification applies to pollutants which are subject neither to
effluent limitations in the permit, nor to notification requirements under 40 CFR Part 122.42
(a) (1)•
c. The alteration or addition results in a significant change in the pe i e's sludge use or
disposal practices, d such alternation, addition or change may ,justify the application of
permit conditions that a 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.
The permittee shall give advance notice to the Director of any planned changes in the permitted
facility or activity which may result in noncompliance 'th permit requirements.

Part 11
Page 14 of 14
r
8.
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.
9
The permittee shall report by telephone to either the central office or the appropriate regional
office of the Division as soon as passible, but in no case more than 24 hours or can the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
at Any occurrence at the water pollution control facility which results in the discharge of
significant amounts of wastes which are abnormal in quantity or characteristic, such as the
dumping of the contents of a sludge digester, the known passage of a slug of hazardous
substance through the facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate wastewater `treatment such as mechanical or electrical failures of
pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass
directly to receiving waters without treatment ofall or any portion of the influent to such
station or facility.
.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. Avg b° " f R I=
Except for data determined to be confidential under NCGS 1 3-215.3(a)(2) or Section 308 of
the Federal Act, 33 ISC 1318, all reports prepared in accordance with the terms shall be
available for public inspection at the offices of the Division of Environmental Management. As
requiredby the Act, effluent data shall not be considered confidential. Knowingly making !any
false statement on any such report may result in the imposition of criminal penalties as provided
for in NCGS 1 3- 1 .1(b)(2) or in Section 309 of the Federal Act.
11.
e Clean Water Act provides that any person who knowingly makes any false statement,
representation, or certification in y record or other document submitted or required to be
maintained under this permit, including monitoring reports or reports of compliance or
noncompliance shall, upon conviction, be punished by a fine of not more than 10, per
violation, or by imprisonment for not more than o years per violations or by both.

PART III
OTHER REQUIREMENTS
A.
I. 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 p ittee'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.
. Under no circumstances shall the permittee allow introduction of the following wastes
in the waste treatment system:
. Pollutants which create a fire or explosion hazard in the POTW, including, but not
limited to, wastestreams with a closed cup flshpont of less than 140 degrees
Fahrenheit or 60 degrees Centigrade using the test methods specified in
40 CFR 2 1.21,
b. Pollutants which will cause corrosive structural damage to the POTW, but in no case
Discharges with pH lower than .0, unless the works is specifically designed to
accommodate t such Discharges;
C. Solid or viscous pollutants in ounts which will cause obstruction to the flow in the
POTW resulting in Interference;
d.. Any pollutant, including oxygen demanding pollutants (BOO, etc.) released in a
Discharge at a flow rateand/or pollutant concentrationwhich will cause Interference,
with the
e. Heat; in amounts which will inhibit biological activity in the POTW resulting in
Interference, but in no ease heat in such quantities that the temperature at the POTW
Treatment Plant exceeds 40'C (1t14°F) unless the Division, upon request of the
POTW, approves alternate temperature limits;
Petroleum coil, noribiodegradable cutting oil, or products of mineral oil origin in
aunts that will cause interference or passthrough;
g. Pollutants which result in the presence of toxic gases, vapors, or fumes within the
POTW in a quantity that may cause acute worker health and safety problems;
h. Any trucked or hauled pollutants, except at discharge points designated by the
3. With regard to the effluent requirements listed in Part I of this permit, it may be
necessary for the permitpermittee to supplement the requirements of the Federal Pretreatment
Standards (40 CFR, Part 403) to ensure compliance by the permittee with all applicable
effluent limitations. Such actions by the permittee may be necessary regarding some or
all of the industries discharging to the municipal system.

-"nirtc Cif AD 1
nowing:
I
»
1 ii i i i Inc appacaulc tW lvc mvnm pen ;
dd submit to the Division at
scribing its pretreatment
Ic c+ir««xy
)posed to
Division;
and the
s must be
iill ':tile
lit*
Users SUs) that
e ittee`s Division
requirements and

12. Record Keeping
e permittee shall retain for a minimum of three years records of monitoring activities
and results, along with support information including general records, water quality
records,d records of industrial impact on the
13. Funding and Financial Report
The permittee shall maintain adequate funding and staffing levels to accomplish the
objectives of its approved pretreatment program;
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to local
limits modifications, POTW monitoring of their Significant Industrial Users (SIUs,
d Monitoring Plan modifications, shall be considered a permit modification and shall
be governed by 15 NCAC 2H.0114 and 15A NCAC 21I 0907..
C.
No construction of wastewater treatment facilities or additions to add to the pl t`s treatment
capacity or to change the type of process utilized at the treatment plant shall be begun until
Final Plans and Specifications have been submitted to the Division of Environmental_
Management and written approval and Authorization to Construct has been issued.
D. Y—=Mmilndu`
e permittee shall, upon written notice from the Director of the Division of Environmental
Management, conduct groundwater monitoring as may be required to determine the
compliance of this NPDES permitted facility with the current undater standards.
E. r
All POTWs must provide adequate notice to the Director of the following;
1. 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 into
that POTW by a source introducing pollutants into the POTW at the time of issuance of
the permit.
. For purposes of this paragraph, adequate notice shall include info anon on (1) the
quality and quantity of effluent introduced into the POW, and (2) any anticipated
impact of the change on the quantity or duality of effluent to be discharged from the

sixty (60) days of n6tification by the Division.

Permit No. NC O0 2 "
•
x
•
ttntatan.
aavironrnental Sciences Branch
carte Carolina Division of
avironmental Management
401 Reedy Creek Road
be 11 gas tta rvIIVIC rc111ucaaa I araa,A ILY #G,-)#:
Im
za HILU) IN cv vc SCUL LO uzc WHOWHIg dUUMbb.

toxicity or a chronic value less than that specified above-, then md1fiple concentration testing shall
b;, performed, at a minimum, in each of the two following months.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the months in which tests were performed, using the
parameter code THP3B for the Chronic Value and TGA3B for the 48 hour Acute Toxicity measure
(Pas' ail) Additionally, DEM Form AT-3 (original) is to be sent to the following address:
Attention:
Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, NC 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
miu wui roquim muncuiam romsmig kwj
suitable test results will constitute nonco
J. Publication of Non -Compliant Signif
The reouirement under Part 111, Secti(
icant Industrial Users
777

PARTIV
ANNUAL ADMINISTERING AND CONWLIANCEMONrrORING FEE REQUIREMENTS
A. The permittee must pay the annual administeringd compliance monitoring fee within 30
( days after being bailed by the Division. Failure to pay the fee in a timely manner in
accordance with 15A NCAC 2H .010 (b)(4) may cause this Division to initiate action to
revoke the permit.

th Carolina0T
1��.
Qf EnvironmentJatural Resources {
rlronmental Management aw
t,, Jr., Governor go oft do
.aUM111r i a D. nvwwN >' Secretary
A. Preston Howard,Jr., P.E., Director � N.C' DEPM OF
January 9, 1995
DIVISION OF VIRCHN'D k `
Mr. Douglas Bean MOORESVILLE R1W6'i1,A I4ia%t.
5 100 Brookshire Boulevard
Charlotte, NC 221
Subject: NPDES Permit # NCO036277
CMUD,McDowell Creek WWTP
Dear Mr. Bean.
The pretreatment rules in 15A NCAC 2H .0900 have been revised effective November 1, 1994.
Therefore, the pretreatment requirements for the City of Charlotte have changed and. your
NPIBS permit is hereby modified to reflect these changes. Please insert the enclosed
Part 11LA-B into the appropriate dace in your current NPDES permit and disregard the old
Part 11i. -B. Phase note that any original Part 111 conditions after Part RLB are still in effect and
must remain in the permit.
e main change is found in Part 111.11.10 with a change from Semi -Annual Reports (SAR) to
Pretreatment Annual Reports(PAR). Your PAR is due by March 1 of each year and shall cover
activities for the; two previous six-month periods. Phase include the following periods in your
first annual report:
First six month period: 1/1/94 - 6/30/94
Second six month period. 7/1/94-12/31/9►4
You are reminded that you must still judge compliance for each industrial user for each six. -
month period, and take appropriate enforcement action:
The; requirements for submission of a PAR 'are found in Chapter 9' of the Comprehensive
Guidance for r rth Carolina Pretreatment Programs.
This permit modification is issued pursuant to the requirements of North Carolina General
Statute 13-1.1 and the Memorandum of Agreement between North Carolina and the
US Environmental Protection Agency dated December 6, 1983.
P. Q Box 29535, Raleigh, North Carolina 7626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 0lam recycled / 1 % past -consumer reaper

CMUD,McDowell Creek "I`P
DES Permit # NCO06277
Page 2
If any part of this permit modification is unacceptable to you, you have the right to an
adjudicatory hearing upon written request within thirty (30) days fallowing receipt of this letter.
This request must be in the form of a written petition, conforming to Chapter 1 0B of the North
Carolina General Statutes, and filed with. the Office of Administrative Hearings, Past Office
Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision
shall be final and`binding.
This permit modification does not affect the legal requirements to obtain other permits which
may be required by the Division of Environmental. Management or permits required by any other
federal, state, or local agency.
If you have any questions concerning this permit, please contact the; Mooresville Regional Office
at (704) 6 -1706 or Ice Pearce with the Central Office Pretreatment Staff at (919) 733-5g3
cerely,
A. Preston How , Jr., E.
e ]rrtE
e its Engur�ering ,
Pretreatment Files
Central Files
Robert Griffin

Part III.A-B.
Modified 19%95
PART III
OTHER REQUIREMENTS
• _ #' _ �i • , �! • � «, � it •
utants attributable to
:nt in the pe 'tt `s
vailable to establish
,y effluent limitations
for anyor o suc o er pollutants in a ce wi s practicable technology or
water quality standards.
2.
Under no circumstances shall the permittee allow introduction of the following wastes
in the waste treatment system:
a.
Pollutants whichcreate a fire or explosion hazard in the PO , 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
bs.
Pollutants which will cause corrosive structural damage to the PO , but in no case
Discharges with pH 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
POTW resulting in Interference,
d.
Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a
Discharge at a flow rateand/or pollutant concentration which will cause Interference
with the ;
e.
Heat in amounts which will inhibit biological activity in the POTW resulting in
Interference, but in no case heat in such quantities that the temperature at the POTW
Treatment' Plant ` exceeds 401C (104°F) unless the Division, upon request of the
PO , approves alternate temperature limits;
L
Petroleum oil, nonbiodegradable 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 , in a quantity that may cause acute worker health and safetyproblems;
h.
Any trucked or hauled pollutants, except at discharge points designated by the
PC)
.
With regard to the effluent requirements listed in Part I of this permit, it may be
necessary for the permittee to supplement the requirements of the Federal. Pretreatment
Standards (40 CFR, Part 403) to ensure compliance by the permittee with all applicable
effluent limitations. Such actions by the permittee' may be necessary regarding some or
all of the industries discharging to the municipal system.

Part III.A-B.
Modified 119I95'
4. The permittee shall require any industrial discharges into the permitted system to meet
Federal Pretreatment Standards promulgated in response to Section 7(b) of the Act.
Prior to accepting wastewater from any significant industrial user, the per °ttee shall
either develop and submit to the Division a Pretreatment Program for approval per
15A NCAC 2H .0907(a) or modify an existing Pretreatment Program per
15A NCCAC 211.0907(b).
5. This permit shall be modified, or alternatively, revolved and reissued, to incorporate or
modify an approved POTW Pretreatment Program or to include a compliance schedule
for the development of a POTW Pretreatment Program required under Section
402(b)(8) of the Clean Water Act and'implementing regulations or by the requirements
of the approved State pretreatment program, as appropriate.
B. ELetregMgnt P_r_oLyram Reguirements
Under authority of suctions 307(b) and c) and 402(b)(8) of the Clean Water Act and
implementing regulations 40 CFR Part 403, North Carolina General Statute 143-215.3 (14)
and implementing regulations 15A NCAC 2H .0900, and in accordance with the approved
pretreatment program, all provisions and regulations contained and referenced in the
Pretreatment Program Submittal are an enforceable part of this permit.
The permittee shall operate its approved pretreatment program in accordance with Suction
402(b)(8) of the Clean Water .Act, the Federal Pretreatment Regulations 40 CFR Part 403, the
State Pretreatment Regulations 15A NCAC 2H .0900, and the legal authorities, policies,
procedures, and financial provisions contained in its pretreatment program submission ission d
:Division approved modifications there of. Such operation shall include but is not limited to
the implementation of the following conditions and requirements:
1. Sewer Use Ordinance (SUO)
The permittee shall maintain adequate legal authority to implement its approved
pretreatment program;
2. Industrial Waste Survey ( S)
The permittee shall update its Industrial Waste Survey (IWS) of all users of the sewer
collection system at least once every five years,
3. Monitoring Plan
The permittee shall implement a Division approved Monitoring Plan for the collection
of facility specific data to be used in a wastewater treatment plant Headwor s Analysis
() for the development of specific pretreatment local limits;
4. Headworks Analysis A) and Local. Limits
The permittee shall obtain Division approval of a Headworks Analysis ( A) at least
once every five years, and as required by the Division. The permittee shall develop, in
accordance with 40 CFR 403. (c) and 15A NCAC 2H .+ 909, specific Local Limits to
implement the prohibitions listed in 40 CFR 403.5(a)' and ` (b) and
15A NCAC 2H .09 9

Part III.A-B.
Modified 1/9/95
5, Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 1-215.1, the per `ttee shall issue to all significant
t
industrial users, permits for operation of pretreatment equipment and discharge to the
per 'ttee`s' `treatment works, These permits shall contain limitations, sampling
protocols, reporting requirements, appropriate standard and special conditions, and
compliance schedules as necessary for the installation of treatment and control
technologies to assure that their wastewater discharge will meet all applicable
pretreatment standards and requirements. The perm ttee shall maintain a current
Allocation Table (AT) which summarizes the resultsof the Headworks Analysis
( A) and the limits from all Industrial User Pretreatment Permits (IUP). Permitted
UP loadings for each parameter cannot exceed the treatment capacity of the POTW as
determined by the A
fa. Authorization to Construct (A to C)
The permittee shall ensure thatan Authorization to Construct A to C) is issued to all
applicable industrial users for the construction or modification of any pretreatment
facility. Prior to the issuance of an Authorization to Construct (A to C), the proposed
pretreatment facility and treatment process must be evaluated for its capacity to comply
with all Industrial User Pretreatment Pen -nit (IUP) limitations;
7. POTW Inspection & Monitoring of their SIU
The per tree shall conduct inspection, surveillance, and monitoring activities as `
described in its Division approved pretreatment program in order to determine,
independent of information supplied by industrial users, compliance with applicable
pretreatment standards. The pe " °tt must:
7a. Inspect all Significant Industrial Users (SlUs) at least once per
calendar year; and
7b. Sample all Significant Industrial Users (IUs) at least twice per
calendar e for all permit -limited pollutants, once during the
period from. January I through June 30 and once during the
period from July I through December 31, except for organic
compounds which shall be sampled once per calendar year;
. SIU Self Monitoring and Reporting
The permittee shall require all industrial users to comply with the applicable monitoring
and reporting requirements outlined in the Division approved pretreatment program, the
ndustry's pretreatment permit, or in 1 A NCAC 2H .0908;
9. Enforcement Response Plan (ERP)
The permittee shall enforce and obtain appropriate remedies for violations of all
pretreatment standards promulgated pursuant to section 307(b) and (c) of the Clean
Water Act 40 C R 405 et.seq.), prohibitive discharge standards set forth in
40 CFR 403.5 and 15A NCAC 2H .0909, and specific local limitations. All
enforcement actions shall be consistent with the Enforcement Response Plan (ERP)
approved by the Division
i

Part III.A-R.
Modified 1/9/95
10. Pretreatment Annual Repo (PAR)
The permittee shall report to the Division in accordance with 15A NCAC 2H .0908. In
lieu of submitting annual reports, Modified Pretreatment Programs ;developed under
15A NCAC 2H .0904 (b) may be required to meet with Division personnel periodically
to discuss enforcement of pretreatment requirements and other pretreatment
implementation issues.
For all other active pretreatment programs, the permittee-shall submit to the Division at
the following address.
NC DEM Pretreatment Group
PO BOX 29535
RALEIGH, NC 27626-0535
Two copies of a Pretreatment Annual Report (FAR) describing its pretreatment
activities over the previous twelve months.
These reports shall be submitted according to a schedule established by the Director d
shall contain the followingw
a.) Narrafixg
A brief discussion of reasons for, status of, and actions taken for all
Significant Industrial Users (SIUs) in Significant Non -Compliance
(SNC);
b.) retreatment Pro am u PP
A pretreatment program summary (PPS) on specific forms
approved by theDivision;
c.) i ific t Non- om li e Re ort
The nature of the violations and the actions taken or proposed to
correct the violations on specific forms approved by the Division;
d.) IndustriData umm, o s li
Monitoring data from samples collected by both the POTW and the
Significant Industrial User (SIU). These analytical results must be
reported on Industrial Data Summary Forms (IDSF) or other
specific format approved by the Division;
.) Other info ati
Copies of the POTW's allocation table, new or modified
enforcement compliance schedules, public notice of S Us in SNC,
and any other information, upon request, which in the opinion of
the Director is needed to 'determine compliance with the
pretreatment implementation requirements of this permit;
11. Public Notice
The permittee shall publish annually a list of Significant Industrial Users S s) that
were in Significant Nod. -Compliance (SNC) as defined in the pe ittee's Division
approved Sewer Use Ordinance with applicable pretreatment requirements and
standards during the previous twelve month period. This list shall be published within
two monthsof the applicable twelve month period,

Part III.A-B.
Modified 1/9/95
12. Record Keeping
The pertnittee shall retain for a minimum of three years records of monitoring activities
and results, 'along with support information including ,general records, water quality
records, and records of industrial impact on the PO
13. Funding and Financial Report
The permittee shall maintain adequate funding and staffing levels to accomplish the
objectives of its approved pretreatment program;
1. Modification to Pretreatment ent Programs
Modifications to the approved pretreatment program including but not limited to local
lirrrits modifications, POTW monitoring of their Significant t Industrial Users (S Us),
d Monitoring Plan modifications, shall be'considered a pertnit modification and shall
be governed by 15 NCAC 2H .f 114 and 15A NCAC 211.0907.
NOTE. -
ALL
OTHER PART III CONDITIONS IN THE ORIGINAL
NPDES PERMIT ARE STILL IN EFFECT.

r. Douglas 0. Bean
Charlotte Mecklenburg Utility Department
100 Brookshire Boulevard
Charlotte, North Carolina 2821E
Dear Mr. Be
November 20, 1995
27 is
DIVIS
Subject: Permit No. AC003627
Authorization to Operate
CM - McDowell Creek WWTP
Mecklenburg County
rision
tC} be
t at
:awba
River Basin.
This Authorization to Operate is issued in accordance with Part Ill, Paragraph C of NPDES Permit
No. NC O036277 issued October 2, 1995, and shall be subject to revocation unless the wastewater
treatment facilities are operated to accordance with the conditions and` limitations specified in Permit No.
NCO03E277.
e sludge generated from this treatment facility must be disposed of in accordance with G.S. 3-
215.1 and in a manner approved by the North Carolina Division of Environmental Management.
In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shalt 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.
e Permittee shall employ a certified wastewater treatment plant operator to be; in responsible
charge (ORC) of the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the 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 15A, Chapter 8A, .0202. The ORC of
the facility must visit each Class I facility at least weekly and.. each Class 1I,111, and IV 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.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
P.O. Box 29535, Raleigh, forth Carolina 27626-0535 Telephone [phone] F 919-733-t 719
An Equal Opportunity Affirmative Action Employer 50% reoycledt 10% post -consumer paper

Permit No. NCO03 277
Authorization to Operate
CM - McDowell Creek
November 20, 199
Page
The Operational Agreement between
Commission is incorporated herein by reference a
terms of the Operational Agreement shall sub e
215.6 for violation of or failure to act in accordan(
Failure to abide by the requirements conk
Permittee to an enforcement action by the Divi
North Carolina General Statute 143-215.6A to 14
The issuance of this Authorization to Oper
any and all statutes, rules, regulations, or ordi
agencies (local, state, and federal) which have Puri
One (1) set of approved plans and sped
questions or need additional information, please
et. 541.
c. Central Files
Mecklenburg County :Health Department
Technical Assistance and Certification Gra
Facility Assessment Unit'
Mr. David Parker, Mack & Veatch
DES Files
igement
with the
S. 143-
)ject the
ice with
,tions is being forwarded to you. If you have any
.tact Greg Nizich, telephone number 919 °i33-5083,
Sincerely,
Preston Howard, Jr., P.E.

CM - McDowell Creel
November 20, 199
Page
Engi=fs ificatio
, , as a duly registered .professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the operation of the
project, I for the
Project Name Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation,
of the operation such that the operation was observed to be built within substantial compliance and intent
of the approved plans and specifications.
Signature Registration No.
Date

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page I
Charlotte -Mecklenburg Utilities B&V Project 62254.300
McDowell Creek Wastewater Treatment Plant B&V File A
Phase III Improvements October 13, 1999
Contract I
PROJECT OVERVIEW
Contract I for the McDowell Creek Wastewater Treatment Plant, Phase III
Improvements, consists of four major areas of work:
— NFPA 820 Improvements
— Waste Activated Sludge Thickening
— Waste Sludge Holding
— Filter Blower Enclosure
This work has been broken out separately from the rest of the Phase III Improvements to
expedite these items due to immediate plant needs. This project is scheduled to be
advertised for bids in early 2000.
A description of each of the four major areas of work follows.
Scope of Work
Construct improvements necessary to bring existing facilities up to the current NFPA 820
code requirements for electrical equipment. This work will include the existing electrical
onndiiit anti tvir;ncy in th,- rlity,-Opr onmnhov nr;mAry Awrif;pre nr,-1;m;niry frAntmi-tit
structure, and installation of combustible gas' detectors in the influent and . primary sludge
pumping stations. Work will be designed and constructed as a separate fast track project,
Basis of Design
The existing wastewater treatment plant electrical installation is not in conformance with
present interpretation of hazardous classification guidelines as described in NFPA 820—
Fire Protection for Wastewater Treatment Plants. Therefore, plans will be developed
detailing the hazardous classification envelope for each structure and the scope of work
detailed to correct the existing electrical installation to comply with this code.

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page 2
Charlotte -Mecklenburg Utilities B&V Project 62254.300
McDowell Creek Wastewater Treatment Plant B&V File A
Phase III Improvements October 13, 1999
Contract 1
T"NOWNWwww"N"W"WH~
Scope of Work
1. Installation of mechanical thickening equipment in the upper level of the Effluent
Filter Building. Equipment type to be determined by a feasibility evaluation
(Task 1.2.).
1 Installation of polymer feed equipment in the upper level of the Effluent Filter
Building.
3. Installation of progressing cavity (thickened sludge) pumps in the lower level of the
Effluent Filter Building.
control system tied to existing plant control system, with modifications to existing
MMI (man -machine interface).
asis of Design
accommodate an operating
by gravity to the plant drain
Number of units
2
Unit designations
GBT-L GBT-2
Belt width, meters
1.5
Influent sludge concentration,
percent dry solids
Minimum
0.6
Average
1.0
Maximum
1.5

ti
BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page 3
Charlotte -Mecklenburg Utilities B&V Project 62254.300
McDowell Creek Wastewater Treatment Plant B&V File A
Phase III Improvements October 13, 1999
Contract 1
Solids loading, pounds sludge
cake per hour total
Average 760
Maximum 1130
Max hydraulic loading rate,
gpm at 0.6% solids total 378
Thickened sludge concentration,
percent dry solids, minimum 3.5
Solids recovery rate, percent min 95
Polymer dosage, is per ton of
Dry solids
Average 5
Maximum 10
Equipment manufacturers Ashbrook or
Komline-Sanderson
Gravity Belt Thickener Control. The gravity belt thickener units will be controlled
locally by gravity belt thickener control panels (GBTCP) which will be provided by
the gravity belt thickener manufacturer. Each panel will contain a
Modicon-Quantum PLC that will be connected to the plant PLC data highway
network. This will allow the gravity belt thickener units to be monitored fromi the
existing plant control system. The existing sludge feed pumps (BTSPs) that feed
sludge to the belt thickeners will be controlled over the data highway network from
the GBT control panel.
a. Description. A polymer feed system will condition sludge prior to thickening.
The polymer feed system will be a packaged system capable of producing
batches of completely activated, fully -aged polymer solution from liquid
emulsion polymer. Secondary dilution capabilities will be provided.
(1) Polymer Usage (Design Year)
Dosage, Ilb/dry ton 10 max, 5 avg.
Average, dry lb/day* 15.2
Maximum, dry lb/day* 45
* 8 hour period, 7 days/week

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page 4
Charlotte -Mecklenburg utilities B&V Project 62254.300
McDowell Creek Wastewater Treatment Plant B&U File
Phase III Improvements October 13, 1999
Contract I
() Maximum Feed Rate
Maximum Emulsion Polymer Use = 45 lb/day
(50% effective) 0.35 x 8.8 lb/day
= 1.6 gal/day
1:8 gal/hour
8 hr/day
() Average Feed Rate
Average Emulsion Polymer Use — 1. lb/day
( 0% effective) 6.35 x 8.8 lb/clay
= 50 gal/day
= 0.62 gal/hour
8 hr/day
(4) Liquid Polymer Storage Requirements
Liquid polymer storage requirements are based on providing 30 days
storage at the average polymer feed rate.
Storage required = 5.0 gpd x 30 days = 150 gallons
Liquid polymer will be delivered in 440 or 28-gallon totes. Storage
space will be provided for one container which provides at least
1-month supply.
(5) System Components
The polymer feed system will include an emulsion polymer feed pump,
wetting unit, mixer, solution mixing/holding tanks, progressive cavity
type solution metering pumps, secondary dilution capabilities, and
control panel,

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT
Page 5
Charlotte -Mecklenburg Utilities
B&V Project 62254.300
McDowell Creek Wastewater Treatment Plant
B&V File A
Phase III Improvements
October 0, 1999
Contract 1
(6) Injection Points
Three points of application for polymer will
be provided for each
gravity belt thickener. One will be in the influent sludge line entering
the building. The second will be at the influent to the gravity belt
thickener. A third will be at an intermediate point between the two.
These three application points will allow the operator to feed polymer
at a location which optimizes thickening.
b, Design Criteria
Polymer Feed System
Number of units
2
Unit designations
PFS-L -2
Type
Liquid emulsion
Feed rate range, neat liquid lb/hr
0.95-5.6
Stock solution concentration
range, percent
35-50
Aging time design basis
30 min @ 0.5% dilution
Mixing tanks
Number
2
Capacity, gal
Polymer Metering Pumps
Number of units
3 (2 duty, I standby)
Unit designations
PFP- 1, -2, -3 (Future)
Type
Progressing cavity
Feed solution, percent
0.50
Pump capacity, gpm,
Minimum
0.38
Maximum
1.1

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page o
Charlotte -Mecklenburg Utilities B&V Project 62254.300
McDowell Creek Wastewater Treatment Plaint B&V .File
Phase III Improvements October 1, 199
Contract I
Secondary dilution
Type Rotameter
Number of units
Secondary dilution
concentration, % 01
Dilution water
feed each, gpm 5
Polymer Control. The GBT polymer feed system will have start/stop control and
feed rate control from the GBT control panel. ;The feed rate will be able to be
automatically paced in proportion to the sludge flow rate to the thickeners, and it
will have a "manual dosage adjustment" from the GIST control panel.
Progressing Cavit Thickened Sludge) Pumps. Thickened sludge pumps will be
used to transfer thickened sludge from the sludge wetwell located beneath the
gravity belt thickener to the primary digester.
Number of Units 2
Unit Designations TSP-I, TP-
Type Progressing cavity
Rated Capacity, gpm each
Rated head, psi
Motor horsepower, hp
Drives Adjustable frequency drive
Equipment manufacturers Mono or Netzsch
Control Local HOA. Automatic
control based on liquidlevel
sensor in thickened sludge
wetwell
Thickened Sludge Pump Control. The thickened sludge pumps will be variable
speed units controlled by adjustable frequency drives (AFDs). Each pump will have
a high discharge pressure switch and a low suction cut-off switch similar to existing
positive displacement pumps at the plant. The pumps will have automatic shut-off
based on low level in the thickened sludge wetwell and will have the ability to
automatically start based on high wetwell level if selected by the operator. The
pumps will have both manual and automatic speed control through the control
system. In "auto" the pump speed will vary as required to keep the thickened sludge;
wetwell at a preset level. I "remote manual" an operator will be able to manually

FLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page 7
Charlotte -Mecklenburg Utilities B&V Project 62254.300
McDowell Creek Wastewater Treatment Plant B&V File
Phase III Improvements October 13, 1999
Contract 1
set the pump speed and, thus, control the sludge delivery rate to the digesters as may
be desirable to gradually transfer the wetwell contents to the digesters over a 24-hour
period.
4. Electrical/Control.
Control for the thickening system components is discussedseparately with each.
system. The electrical design criteria are discussed in the electrical design
memorandum beginning on Page 8.
Scope of Work
. Conversion of unused secondary clarifier to waste activated sludge holding basin.
Install piping connections in yard'. Provide coarse bubble diffused aeration
equipment.
. Installation of air piping connection from plant process air system, with air flow
measurement and automatically adjusting air flow control valve.
Basis of Design
1. Concrete will be added to the floor of the basin to "level" the floor to 1/4-inch fall per
foot of length. This will facilitate the layout of the diffused aeration system and
maximize the useable volume of the basin.
Type of diffused aeration equipment Fine bubble
Piping material
Below grade Ductile iron
Above grade/exposed 304 SS, Schedule 10S
Required air flow rate to basin 20 scf n per 1,000 cubic foot
2. Due to concern for noise and operator access to the blowers, process air for the WAS
holding basin will be provided from the existing blower building. A new o-inch
process air line will be routed as shown from a 24-inch air header to the WAS holding
basin. The addition of a fifth blower in the existing blower building will be required.
Air flow to the WAS holding basin will be controlled by a modulating valve that is
controlled by a downstream flowmeter. The flowmeter will respond to preset level
indicators monitoring sludge levels in the basin. Control wiring for the flowmeter

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page
Charlotte -Mecklenburg Utilities B&V Project 622 4.300
McDowell Creek Wastewater Treatment Plant B&V File
Phase III Improvements October 1, 1999
Contract 1
and valve will be routed to the nearest PLC for incorporation into the plant control
system. See the electrical design memorandum beginning on page 8.
FILTER LOW ENCLOSURE
Scope of Work..
L Provide a design for a sound attenuating enclosure around the filter backwash blowers
and for a weather -protective enclosure around the NPW pump system. Include
services of an acoustical engineer to evaluate the blower noise and provide
recommendations for dampening the noise.
Basis of Design
L Civil. The existing three -sided structure will be utilized and a fourth wall added to
enclose the blowers. Monorail beams will be installed above the centerline of each
blower.' Clear area above each blower is based on the roof connection at the "best"
elevation on existing wall.
. Mechanical. The blowers have non -piped air inlets so the inlet air travels freely
through the room to the blowers. This results in the blower inlet air being available
for space cooling.
The blower inlet airflow quantities will be adequate to cool the space to 1t14°F
therefore, no exhaust fans are required. The inlet louver areas should be based' on
the recommendations of the acoustical sub -consultant. Based on the acoustical sub -
consultant recommendations which, with two blowers operating at 2,500 cfm each,
would require a 16 s . ft. opening, either 4'x 4' or 2'x 8% with two of the 2'x 4'
Commercial Acoustics Model BRD-3HP-LF-2448 sound attenuators mounted'
behind them.
The pressure loss through the intake louvers and sound attenuators would be
0.2-inch water column with both blowers operating. The architectural louver
installation detail will need to incorporate the mounting of the sound attenuators
behind the louvers instead of the typical contrail dampers.
Space heaters will not be provided.

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page 9
Charlotte -Mecklenburg Utilities B&V Project 62254.300
McDowell Creek Wastewater Treatment Plant B&V File A
Phase III Improvements October 13, 1999
Contract 1
3. Architectural/Structural. Structural steel will be used to support the roof and the
monorails. Roof construction and the construction of the fourth wall, and the
improvements to the existing screen wall will match existing plant construction.
4. Electrical.
See the electrical design memorandum beginning on Page 9.
ELECTRICAL DESIGN MEMORANDUM
GENERAL
This memorandum will discuss the electrical design requirements for the Contract I
improvements of the McDowell Creek Wastewater Treatment Plant. This memorandum
serves as supplement to the civil design memorandum.
APPLICABLE CODES AND STANDARDS
All electrical work will comply with the following codes:
North Carolina State Building Code
• National Electric Code (NEC) with North Carolina state amendments
• National Electrical Safety Code (NESC)
• NFPA 820 Fire Protection Requirements for Wastewater Treatment Plants
GENERAL DESIGN CRITERIA
The electrical design will conform to Black & Veatch standards with inclusion of CMU
preferences for electrical installations and will be generally as follows:
0 All new motors, 1/2 horsepower and larger, will be rated 460 volts, three phase.
0 All new motors, less than 1/z horsepower, will be rated 115 volts, single phase.

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page 10
Charlotte -Mecklenburg Utilities B&V Project 62 54,300
McDowell Creek Wastewater Treatment Plaint BV File A
Phase III Improvements October 13, 1999
Contract 1
• Except for package equipment, motor starters will be located in motor control
centers and have a green indicating light for OFF, red indicating light for CAN,
and amber indicating light for motor failure.
• MCC internal wiring labels shall be required to be applied at all terminations,
inations,
including wiring between cubicles.
• Elapsed time meters will be supplied on all new combination motor starters for
process motors above one horsepower and critical equipment below one
horsepower designated by CMU.
Power receptacles, small process loads, and lighting loads will be supplied from
three phase, 480-120/208 volt auxiliary lighting transformers and 120/208 volt,
three phase, lighting panels to balance phase loading on the 480 volt system.
• Weatherproof receptacles will be utilized outdoors, in chemical feed and storage
areas, and in wet locations. All receptacles will be provided with ground fault
interrupting ( FI) capability.
• PVC coated rigid galvanized steel conduit (RGS) will be used for exposed
indoor areas.
• PVC coated rigid steel conduit will be used for exposed outdoor areas.
• Underground electrical; duct banks will have reinforced concrete encasement.
Power and control circuit conduits will be Schedule 40 PVC.`
• All low voltage power and control cable will be rated for 600 volts and have
type XHHW insulation. Lighting and receptacle circuits may have THHN
insulation.
• Lighting circuits will utilize a separate ground conductor.
• Motors will be specified with premium efficiency ratings.

BLACK & VEATCH INTERNATIONAL COMPANY
ENGINEERING DESIGN REPORT Page 11
McDowell Creek Wastewater Treatment Plant B&V File A
Phase III Improvements October 13, 1999
Contract 1,
The following are additional design requirements:
Remote field instruments requiring 120 volts, single phase, 60 Hz power supply
will be powered from standard duplex receptacle outlets.
Each suspended type fluorescent fixture shall be powered from a duplex
receptacle outlet with zipcord to enable access for fixture maintenance and
0 All exterior fixtures will be corrected high pressure sodium type with photocell
and lighting contactor control,
Local code enforcing authority requires all electrical, instrumentation, and
dedicated equipment control panels to incorporate the label of a qualified
national testing laboratory.
POWER DISTRIBUTION FUNCTIONAL REQUIREMENTS.
Equipment in the Effluent Filter Building is poweredfrom a motor control center
(MCC-3) located on the upper level. Under the Phase 11 contract, MCC-3 was furnished
with the necessary circuit breakers and starters to feed two thickened sludge pumps, one
be furnished and installed under Contract 3 utilizing the existing MCC provisions. Power
and control cable will be pulled through existing conduits. A new circuit breaker will be
provided in a spare section of MCC-3 for a second gravity belt thickener. Exposed
conduit to the equipment will be provided.
Lights and receptacles will be furnished for the new Filter Blower Enclosure. Power will
be provided from an existing 120 VAC lighting panel in the Filter Effluent Building.
Light fixtures will be enclosed fluorescent type and will match those in the Effluent Filter
Building. Exterior fixtures will be provided over building entrances.

FV
0
8604 Cliff Cameron drive, Suite 164 Mack & Veatch International Company'
Charlotte, North Carolina 28269 USA
%1: [phone]
Fax:[phone]
Charlotte -Mecklenburg Utilities B&V Project 62254,500
McDowell Creek Wastewater TreatmentPlantB&V File F
Phase III Improvements December 1 1999
Contract 1
Mr. David A. Goodrich
NPDES Supervisor
North Carolina Department of Environment
and Natural Resources
Division of Water Quality
512 North Salisbury Street
Raleigh, North` Carolina 27604
Subject: Authorization to Construct Request
I4iPDES Permit No. NCO036277
McDowell Creek WWTP
Mecklenburg County
Dear Mr. Goodrich.
Can behalf of Charlotte -Mecklenburg Utilities, we are requesting an Authorization to Construct
for Contract I of the Phase 3 Improvements at the McDowell Creek: Wastewater Treatment Plant.
Enclosed are two copies of the plans and specifications for this project. By copy of this letter, a
third copy of the plans and specifications is being forwarded to Rex Gleason in the Mooresville
office for his review. I understand a review fee for the ATC request is no longer required. If this
is not the case, please contact me as soon as possible.
I have discussed this project with Mark McIntire with the Division of Water Quality. I request
that Mr. McIntire be assigned to review this application if he is available.
ContractI of the Phase 3 Improvements' includes the following areas of work:
Waste Activated Sludge Storage —Conversion of an abandoned clarifier basin for
storage of waste activated sludge prior to thickening. Work includes installing new
waste activated sludge pumps, adding an aeration system to the storage basin., and
adding an additional blower in the blower building to maintain adequate blower
capacity for the treatment process.
the imagine -guild company-

O. OWL40
,' .
MR .s
iW of mo,P e ;'i'-':sw
Mr. David A. Goodrich B V Project 62254.500
December 1, 1999
• Waste Activated Sludge Thicken ng—Gravity belt thickeners were previously
designed, but deleted from the construction project in the Phase 2 Improvements.
This equipment will now be installed, in buildings previously guilt for this purpose.
Equipment includes two gravity Melt thickeners, a polymer feed system, and thickened
sludge pumps.
• Filter Blower Enclosure -Outdoor blowers were installed in the Phase
Improvements for filter backwash. A building will now be constructed to enclose
these blowers for weather protection and sound attenuation.
• 1' FPA 820 Improvements —Work will be done to existing facilities to upgrade for
compliance with the electrical requirements of NFPA 820—Fire Protection for
Wastewater Treatment Facilities.
A Basis of Design memorandum is included with this application for reference, and provides a
more detailed description of the work included in this contract.
Please contact me at (704) 510- 438 or Maggie Becker in our office at (7 4) 510- 4 9 if you
have any questions about this project.
Very truly yours,
BLACK & VEATCH
INTERNATIONAL, COMPANY
-�. ' �
David M. Parker, P.E.
Project Manager
MD3/jh
Enclosures
cc: Barry Gullet, CMt1
Pete Goins, CMC
"Tom Howard CM
"' n NCDENR--Mooresville (w l copy of plans and specs,

ru
8604 Cliff Cameron Drive, Suite 164 Buck & Veatch International Company
Charlotte, North Carolina 28269 USA
Tel: [phone]
Fax: [phone] nur, 19S)9
Charlotte -Mecklenburg Utilities B&V Project 62254.50
McDowell Creek Wastewater Treatment Plant B&V File F
Phase III Improvements vements Pecernber 1, 1999
Contract 1
r. David A. Goodrich
NP DES Supervisor ,q
North Carolina Department of Environment
and Natural Resources
Division of Water (duality
512 North Salisbury Street
Raleigh, North Carolina 27604
Subject: Authorization to Construct Request
NP ES Permit No. NCO036277
McDowell Creek WWTP
Mecklenburg County
Dear Mr. Goodrich.:
On behalf of Charlotte -Mecklenburg Utilities, we are requesting an Authorization to Construct
for Contract 1 of the Phase 3 Improvements at the McDowell Creek Wastewater Treatment Plant,
Enclosed are two copies of the plans and specifications for this project. By copy of this letter, a
third copy of the plans and specifications is being forwarded to ilex Gleason in the Mooresville
office for his review. I understand a review fee; for the ATC=request is no longer required. If this
is not the case, please contact me as soon as possible.
I have discussed this project with Mark N4clntire with the Division of Water Quality. I request
that Mr, McIntire be assigned to review this application if he is available.
Contract 1 of the Phase 3 Improvements includes the following areas of work:
Waste Activated Sludge Storage —Conversion of an abandoned clarifier basin for
storage of waste activated sludge prior to thickening. Work includes installing new
waste activated sludge pumps, adding an aeration system to the storage basin, and
adding an additional blower in the blower building to maintain adequate blower
capacity for the treatment process.
the ariagin •build company

Page 2
Mr. David A. Goodrich B&V Project 62254.500
December 1, 1999
• Waste Activated Sludge Thickening —Gravity belt thickeners were previously
designed, but deleted from the construction project in the Phase 2 Improvements.
This equipment will now be installed, in buildings previously built for this purpose.
Equipment includes two gravity belt thickeners, a polymer feed system, and thickened
sludge pumps.
• Filter Blower Enclosure —Outdoor blowers were installed in the Phase 2
Improvements for filter backwash. A building will now be constructed to enclose
these blowers for weather protection and sound attenuation.
• NFPA 820 Improvements —Work will be done to existing facilities to upgrade for
compliance with the electrical requirements of NFPA 820—Fire Protection for
Wastewater Treatment Facilities.
A Basis of Design memorandum is included with this application for reference, and provides a
more detailed description of the work included in this contract.
Please contact me at [phone] or Maggie Becker in our office at [phone] if you
have any questions about this project.
Very truly yours,
BLACK & VEATCH
INTERNATIONAL COMPANY
David M. Parker, P.E.
Project Manager
McD3/jhb
Enclosures
cc: Barry Gullet, CMU
Pete Goins, CMU
Tom Howard, CMU
4hWORMUMn, NCDENR—Mooresville (w/1 copy of plans and specs, I copy memo)

P
A PI
R. Presion a57 . ., uiremor
RECEIVED
November 28, 199Dept. of EHNR
Mr. Douglas 0. Bean NXI of NOV 19915
Charlotte Mecklenburg Utility De e , O
100 Brookshire Boulevard
Charlotte, North Carolina 28216 t Regional office
DEC Subject; Permit No AC0036277
t tt t
k [v .An�o ' ati onto Cans et
NArVM
Mecklenburg McDowell len C t Creek

Permit No. NCO0 6277
Authorization to Construct
M - McDowell Creek
November 28, 1995
Page 3
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Envirorunental Management in accordance with
North Carolina General Statute 1 3-215.6A to 113-215.6C..
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 ether govermnent
agencies (local, state, and federal) which have jurisdiction..
One () set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Greg Nizich, telephone number 1 733-50 3
ext. 51.
Sincerely,
a

Permit No. NCO03 277
Authorization to Construct-
CMUD - McDowell Creek'
November 28, 199`
Page
Engin is Certification
1, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) e) the operation of the
project, for the
Project Name Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the operation such that the operation was observed to be built within substantial compliance and intent
of the approved plans and specifications.
Signature Registration No,
Mato

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DATUM IS MEAN SEA LEVEL �.C.

Permit No. NCO036277
STATE OF NORTH C;AROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISQHARGE ELIMINATION SYSTEM
1n compliance with the provision of North Carolina General Statute 143-21 .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,
Charlotte Mecklenburg Utility Department
is hereby authorized to discharge wastewater from a facility located; at
McDowell Creek Wastewater Treatment Plant
NCSR 2074
near the Town of Pluntersville
Mecklenburg County
to receiving waters designated as McDowell Creek in the Catawba liver basin
in accordance with effluent limitations, monitoring requirements., and other conditions set forth in
Parts 1,11, and III hereof.
This permit shall: become effective
This permit and authorization to discharge shall expire at midnight on September 30, 2000
Signed this day
A. Preston Howard, Jr., P.l . Director
Division of Environmental Management
y Authority of the Environmental Management Commission

Permit No. NCO 362"77
SUPPLEMENT TO PERMIT COVER SHEET
City of Charlotte/Charlotte-Mecklenburg Util. Dept
iereby authorized to:
1. Continue to operate an existing 3.0 MGD wastewater treatment system consisting of manual bar
screens, grit removal, influent pumping, primary clarifiers, trickling filters, first stage aeration,
intermediate clarifiers, second stage aeration, final clarifiers, aerated polishing pond and
chlorination located at McDowell ll Creek Wastewater Treatment facility, on SR 2074, Neck Road
near the Town of Huntersville, Mecklenburg County (See Part III of this Permit), and
2.After receiving an Authorization to Construct from the Division of Environmental- Management,
construct and operate a 6.0 MGD treatment facility, and
Creek which is classified Class WS-IV C. waters an the Catawba River Basin. _

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4854 IV S
SCALE 1:24000
MILE
• � ;5 � nIt,CSw,FiE�"
2 MIL CONTOUR INTERVAL 10 FEET
DATUM IS MEAN SEA LEVEL
MAGNETC NGEIt,
N3'EF; OF SMEE.;
;HtS MAP COMPLIES WITH NATIONAL MAP AI-CURA4w S`ANDARv`5
FOR SALP RY II A n;rnf n€aarnt c,at>r,, r

During the period beginning on the effec�ve date of the peffnit and lasting until EXPANSION ABOVE 3.0 MGD or expiration, the Permittee is
authorized to discharge from outfall(s) serial number 00t. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge n
Mantp I mmgn
ring__Reqmj --ta
WaimLe-m—evL— i$AMVj-q
Monthly Ama. W"kly Ava. Dailv Max Emaw"Acy Lg"lLqq
Flow 3. 0 MGD Continuous Recording I or E
BOD, 5 day, 20'00** 5.0 mg/l 7,5 mg/1 Daily Composite E, I
Total Suspended Residue" 30.0 mg/1 45.0 mg/l Daily Composite E, I
NH3 as N 2.0 mg/l Daily Composite E
Dissolved Oxygen *** Daily Grab E, U, D
Fecal Coliform (geometric mean) 200.0/100 ml 400�O /100 ml Daily Grab E, U, D
Total Residual Chlorine Daily Grab E
Temperature Daily Grab E,U,D
Total Nitrogen (NO2 + NO3 + TKN) Monthly Composite E
Total Phosphorus Monthly Composite E
Chronic Toxicity**** Quarterly Composite E
* Sample locations: E - Effluem I - Influent, U - Upstream at Beatties Ford Road, D - Downstream at Neck Road
Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week during June, July, August,
and September and once per week during the remaining months of the year.
The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 1.5 % of the respective influent value
(85% removal).
The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
Chronic Toxicity(Ceriodaphnia) P/F at 72%january, April, July, October; See Part 111, Condition G.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard unit-, and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

During the period beginning on the effective gate of the permit and lasting until EXPANSION ABOVE 3.0 MGD or expiration, the Permittee i
authorized to discharge from outfall(s) serial number (ill . (Continued)
LimitationsEffluent Characteristics Discharce
Monitoring
e
°W
M e` e—m—t An �
sample
!L
Monthly Avg. W
Call a
o ue cT
m
Conductivity
Crag
U, [
Cadmium
2.8 pg/l
Weekly
Composite
E
Cyanide
6.9 µ g/l
Weekly
Crag
E
Lead
35,O µg/l
Weekly
Composite
E
Mercury
2/Month
Composite
E
Copper
2/Month
Composite
E
Zinc
2/Month
Composite
E
Chloride
Quarterly
Composite
E
Fluoride
Quarterly rterly
Composite
E

"tallig Uir, prljuu tirgiiitung on tiiC clicutivu Uutt;tit Ulu puriiiit ituu td.Ntuig uiitii i:�P rt"1iNojkjv4 t%t>w v [.5 i kF kvivj" Lot UIV iCili111 01
authorized to discharge from outfall() serial number 001. Such discharges :shall be limited and monitored by the permittee as specified below:
Effluent Ch to ' rta Mo I i>r"n e
Monthly Ayq. Weekly--Avg,,Daily_Max I`reacrencv
Lc aticin
Flow 3. 0 MGD Continuous
recording I or
BOO, 5 day, 200C** 11.0 mg/1 1545 mg/l Daily
Composite E, I
Total Suspended Residue" 30.0 m /I 45.0 mg/l Daily
Composite E, I ;
NH3 as N 2.0 mg/I Gaily
Composite E
Dissolved Oxygen *** Daily
grab E, U,
Fecal Colitorm (geometric mean) 200.0 /100 ml 40M /100 ml Daily
Grab E, U, D
Total residual Chlorine Daily
Grab E
Temperature Daily
Grab E,U,D
Total Nitrogen (NO2 + NO3 + TKN) Monthly ,
Composite E
Total Phosphorus Monthly
Composite
Chronic Toxicity**** Quarterly
Composite E
* Sample locations. E - Effluent, I - Influent, U - Upstream at Beattres Ford. Road, U - Downstream at (Neck Road
Upstream and downstream samples shall be grab samples. Stream samples shall be collected three tunes per week during .tune, July, August,
and September and once per week during the remaining months of the year.
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 of the respective influent value
(85% removal).
*** The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
**** Chronic Toxicrty(Cerrodaphnra) P(F at 7 ,January, April, July, October; See Part III, Condition G.
e pH shall not be less than 6.0 standard units nor greater than .0 standard units and shall be monitored daily at the
effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

i.Ttti` 1 g une penouE7 g3t nun on uto e'tt t;uV aw 01 U31' pc rjult allu Idsung Until Z^VtA1NOIkX1-E tA"ki V 1:, J.v iV$Tti " VI UAVIl w,111, Ulu- IN
authorized to discharge from outfall() serial number 001. (Continued)
Effluent Characteristics Discharag JJMjLaAfgns
Misn"tor`n
uir 't
Units (s
ensure ent
m le
*Samnle
Conductivity
Grab
U, t
Cadmium
2.8 g/l
Weekly
Composite
E
Cyanide
6.9 tt / l
Weekly
Grab
Lead
35.0 /l
Weekly
Composite
E
Mercury °
2/Month
Composite
E
Copper2/Month
Composite
E
Zinc
2/Month
Composite
E
Chloride
Quarterly _
Compote
E
Fluoride
Quarterly
Composite
E

During the period beginning upon EXPANSION ABOVE 3.0 MGD and lasting until EXPANSION ABOVE 3.5 MGD or expiration, the
Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the pertnittee as
specified below:
Effluentischarae Limitations o i
Measurement Sam le "sam to
Monthtv-We ktv Ava. Dailv Maxim Freauencv
`low 3.5 MGD Continuous Recording I or E
t D, ' 5-Day, 20' ** 5.0 mg/1 7.5 mgll Daily Composite 1,
Total suspended Residue*" 30.0 mg l 45.0 mgil Daily Composite 1,E
NH3 as N 2.0 mg/1 Daily Composite E
Dissolved Oxygen' Daily Crab E U,D
Fecal Coliform (geometric mean) 200 /100 ml 40 10ml Daily Grab E ,D
Total Residual Chlorine Daily Crake E`
Temperature Daily Crab E U,D
Total Nitrogen (N0 + NO3 + TKN) Monthly Composite
Total Phosphorus Monthly Composite E
ConductivityGrab E U,D
Chronic Toxicity*"" Quarterly Composite' E
* Sample locations: E - Effluent, I - Influent, U - Upstream at Beatties, Ford load, D - Downstream at Neck load. Upstream and downstream
samples shall be grab samples. Stream samples shall be taken three times per week during the months of June, .July, August and September, and
onceper week during the remaining months of the year.
** The monthly average effluent BOD5 and Total Suspended residue concentration. shall not exceed 15°l of the respective influent value (85 o
removal).
* ** The daily average dissolved oxygen effluent concentration shall not be less than 5.0 g/l.
****' Chronic Toxicity ( eriodaphnia) P1F at 76%; January, April, July and October; See Part III Condition H.
The pH shall not be less than 6.6 standard units nor greater than 9.0 standard units and shall be monitored daily by grab sample at the effluent.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permittee is authorized to discharge from o tfali(s) serial number 001 (Continued)
Effluent CharacterigiQ1 Discharge timitatigni
t
Meastgement
—Sample
* Sam I
Monthly. a4 a: k Avg DAU - Max.
Freauencv
Cadmium 2 pgIl
Weakly
Composite
Lead 33.3 N fl
Weekly
Composite
E
Cyanide 6.6 pgli
Weekly
Crab
E
Mercury
2/Month
Composite
E
Copper
2/Month
Composite
E
Zinc =
21M nth
Composite
E
Chloride
Quarterly
Composite
E
Fluoride
Quarterly
Composite
E

Perm
arch 31) Permit No. NC O036277
�N ABOVE 3.5 MGD or expiration, the
ited and monitored by the permittee as
specified ified below: 4
Il easurement
—Sample
'Sam to
Monthly.
Mg.
eelC iFreaugne
Flow
3.5
MGD
Continuous
Recording
l or E"
SOD, 5-Day, 200C**
11.0
mg/l
15.5 mg/l
Daily
Composite
1,E
Total Suspended Residue"*
30.0
mg/l
45.0 mg/1
Daily
Composite
1,E
NH3 as N
2.0
mgfl
Daily
Composite
E
Dissolved Oxygen*"
Daily
Grab
E,U,D
Fecal Coliform (geometric mean)
200
/100 ml
400 /100 ml
Daily,
Crab
E,U,D
Total Residual Chlorine
Daily
Crab
E
Temperature
Daily
Grab
E,U,D
Total Nitrogen (N0 + N > + TKN)
Monthly
Composite
E
Total Phosphorus
Monthly
Composite
E
Conductivity Grab E,U,D
Chronic Toxicity"** Quarterly Composite
Sample locations: E - Effhie it, I - Influent, U - Upstream at Be tti s Ford Road; D - Downstream t Neck Road. Upstream and downstream
samples shall be grab samples. Stream samples sham be taken three times per week during the months of June, July, August and September,
and once per week during the remaining_ months of the year.
The monthly average effluent BO 5 and Total Suspended Residue concentration shall not exceed 5% of the respective influent value (g %
removal).
* The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
* Chronic Toxicity (C"eriodaphnia) P/F'at 76 , January, April, July and October; See fart III Condition H.
The pig shall not be less than 6.0 standard units near greater than 91.0 standard units and shall be monitored daily by grab sample at the effluent.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

'Novembarl-March'111 PermitNo-NC0010.77
During the period beginning upon EXPANSION ABOVE 3.0 MOD and lasting until EXPANSION ABOVE 3.5 MOD or expiration, the
Permittee is authorized to discharge from outfall(s) serial number 001.
(Continued)
Effluent CharacteriltiVA QlAchomp—jimaAffm
Monitoring
Measurement
Sample
Sam le
Monthly. AM Weektv
Ava. Dailv Max
Er"m"my—
Uln—
LM119A
Cadmium
2�6 pg/l
Weekly
Composite
E
Lead
33.0 ttg/l
Weekly
Composite
E
Cyanide
6.6 ttg/l
Weekly
Grab
E
Mercury
2/Month
composite
E
Copper
2/Month
Composite
E
Zinc
2/Month
Composite
E
Chloride
Quarterly
Composite
E
Fluoride
Quarterly
Composite
E

s•
A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Summer (April - October 3 1) Permit No. NCO036277
During the period beginning upon EXPANSION ABOVE 3.5 MGD and lasting until expiration, the Permittee is authorized to discharge
from outfall(s) serial. number 001. Such discharges shall be limited and monitored by the 'pet ittee as 'specified below
Effluent C racteristics Discharae Monitorina R'eaulr meats
Measurement Sample *Sample ,
Monthly. Avdr Weekly Ava. Daily Max. reauen v _ LQSAtLOD
Flow E.0 MGD Continuous Recording I or E
BOD, -Day, 20*C** 5.0 mg/I 7.5 mg/1 Daily Composite I E
Totalsuspended Residue** 30.0 mg/I 45.0 mg/l Daily Composite I E
NH3 as N 2.0 m/1 Daily Composite
Dissolved Oxygen*** Daily Grab E,U,D
Fecal Colitorm (geometric mean) 200 /100 ml 400 /100 m1 Daily Grab E,U,D
Total Residual Chlorine 22.0 µg/I Daily Grab E
Temperature Daily Grab E,U,D
Conductivity * Grab E,U,D
Total Nitrogen (N0 + NO3 + T N) 10.0 mg/1 Weekly Composite
Total Phosphorus 1.0 m /I Weekly Composite E
Chronic Toxicity"" Quarterly Composite E
Sample locations: E - Effluent, I - Influent, U - Upstream at Beatties Ford Read; D - Downstream at Neck Road. Upstream and downstream
samples shall be grab samples. Stream samples shall be taken three times per week during the months of June, July, August and September,
d once per week during the remaining months of the year.
*The monthly average effluent BOD5 and. Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (5 %
removal). ;
`* The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
** Chronic Toxicity (Ceriodaphnia) P/F at 5 ; January, April, July and October; See. Part III Condition 1.
The pH shall not be less than 6.0 standard units nor greater than .0 standard units and shall be monitored daily by grab sample at the effluent.
There shaft be no discharge of floating solids or visible foam in other than trace amounts.

During the period beginning upon EXPANSION ABOVE 3.5M D and lasting until expiration, the Permittee is authorized to discharge
from outfall(s) serial number 001.
(Continued)
iiueni Characteristics '
Discharge.imlta Ions
I Itanj oring
R aulrements
Measurement
Sample
*Sar»pie
onthiy. AM Weekiv Ava. all &
Freaue -"
boo tion
Cadmium
2.4 µ g /l
Weekly
Composite
F
Lead
30.0 A g l
Weekly
Composite
Cyanide
5.9 j g/l
Weekly
Grab
Mercury
2/Month
Composite
E
Copper
2/Month
Composite
F
Zinc
2/Month
Composite
Chloride
Quarterly
Composite
Fluoride
Quarterly
Composite

A.(). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Winter (November I -March 1) Permit No. NCO036277
During the period 'beginning upon EXPANSION ABOVE 3.5 MGD and lasting until expiration, the Permittee is authorized to discharge
from outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below.
Effluent Chara+ct+eristiics Pischarae Limitations on t_o 1n 1
Measurement hem' le LS—a-t p le
M2nth1lv.____Am Weeklv Avg. Daily Max. FreaugnV.. o A.tLon
Flow 6.0 MGD Continuous Recording l or E
BOD, 5-Day, 200C** 10.0 mg/l 15.0 mg/l Daily Composite 1,E
Total Suspended Residue** 30.0 mg/l 45. mg/l ' Daily Composite 1,E
NH3s N 2.5 mg/l Daily Composite
Dissolved Oxygen*** Daily grab E,U,D
Fecal Coliform (geometric mean) 200 /100 ml 400 /100 ml Daily Grab E,U,D
Total Residual Chlorine 22.0 I g/l Daily Grab E
Temperature Daily Grab E,U,D
Conductivity Grab E,U,D
Total Nitrogen (NO2 + NO3 + T1 N) 10.0 mg/l Weekly Composite
Total Phosphorus 1,0 mg/l Weekly Composite E
Chronic Toxicity**** Quarterly Composite E
* Sample locations: E;- Effluent, I - Influent, U -'Upstream at Beatties Ford Road; D - Downstream at Neck Road. Upstream d downstream
samples shall be grab samples. Stream samples shall be taken three times per week during the months of June, July, August and September,
and once per week during the remaining months of the year.
e monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (
removal).
The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
*** Chronic Toxicity (Ceriodaphn a) P/F at 85 ; January, April, July and October; See Part III Condition I,
The pH shall not be less than 6.9 standard units nor ,greater than 9,0 standard units and shall be monitored wily by grab "sample at the effluent.
'fhere shall be no discharge of floating solids or visible foam in other than trace amounts.

aurrrtg the pertou Deguitung upon EXPANSION A13O J. ut) and lasting until expiration, the Permittee is authorized to discharge
from out all(s) serial number 001. (Continued)
Elf DischargeimltatlQns
M Aft i ,r
Meaurernent Sample
Daily Ma
►rn le
Cadmium
+
2.4 µ g l l Weekly Composite
Lead
30.0 gfl Weekly Composite
Cyanide
5.9 g g ll Weekly Grab
Mercury
2/Month Composite
Copper
2/Month Composite
:zinc
2/Month Composite
Chloride
Quarterly Composite
Fluoride
Quarterly Composite

Part III Permit No. NC O0 6277
•ONI TOXICITY !Y 4TL PERMIT
b 11 1R 11
�..icU
1. The North Carolina C'eriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1 8) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is 76% (defined as treatment two in the North Carolina procedure document)
The permit holder shall perform quarterly monitoring lasing this procedure to establish compliance
with the pennit condition. The first test will be performed after thirty days from the effective date
of this permit during the months of January, .April, July and October. Effluent sampling for this

Test data shall be complete and accurate and include all supporting chemical/physical measurements

performed in association with the toxicity tests, as well ii 0 (fose/responie data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.

�ew ter coUection extension.
-ifted therein.
Sincerely,
1
� J � (1Q
A. Presto Ho card, Jr., P.E.
c. Mecklenburg County health Department
]Vlr, (had ]ttns,rn .'tocliilo Associates, Inc.
.OJ cox 29535, Raleigh, North Carolina 27625-0535 Telephone [phone] FAX 91
An Equal Opportunity ity Affirmative Action Employer 50% recycled/ 10% pest -consumer Pape

supporting materials. Bail the Certifi+
P.O. Box 29535, Raleigh, NC 27 2
A copy of the approved plans and spec
minimum of five years from the date c
by this Division, such as the constru tio'
facilities.
12. Noncompliance Notification:
to the rater Quality ty Pe tits and
.
the completioi
f construction.
sville Regional Office, telephon
ore than 24 hours or on the ne
-currence of either of the follow
,ithin
n or
Liupuuticat eau use Newiuny r.reveiopment uroup for u e con cuon anu imax treatment car
wastewater is in full force and effect.
14. 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
North Carolina General Statute 143-215.6a) to 13-215.(c) for violation of or failure to act in
accordance with the terms and conditions of this Pennit,
Permit issued this the 19 day of December 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston.. ward, Jr., P. t� Director
Division cif viro ental Vanagetent
y Authority of the Environmental Management Commission
Permit Number WQ0011799
2

waters of the SUife and the public interest ther tin,
NOW, THEREFORE, in consideration of the promises d the benefits to be derived
hereto, the COMMISSION and DEVELOPER do hereby mutually agree as follows:
1 Ihe DTIVELOPER shall construct the Disposal l System in accordance with the pen
specifications hereafter issued and approved by the COMMISSION; and shall the;
and maintain such systems and facilities in accordance with applicable permit prof
. The DEVELOPER shall not transfer oNNmersla and/or control of the Disposal Sys
until construction has been completed in accort ance widi the permit and approved
Division of Environmental 'Management has inspected and approved of thefacilitii
name of the p rrait holder, die DEVELOPF R must request the permit be reissi
sae request mast include az copy of the Association 13 laws and Declaration,
3. The DEVELOPER PE shaill not transfer, convey, assign or othen�visle relinquish or rel
the operation and maintenance of its Disposal l System until a permit has been re' i"w
successor.
0
.h of the parties
[nd plans and
er properly operate
ns and law.

karation and
yearly budget.
w
9
Ill U2t=Uid1Gt S Ul Lilt; (:{ TV'Vtll'V Ul zluuc Ul INVI lil X—alt) uld Willi vile tv LitI V1 fait uli'l r auvis VL "I;
on.
A. Pre tuvrci; Jr.,# Director Signature
Division ofInIvironmentYal Management
Print Name and Tide
(Date)

i
Jonathan . Howes„ Secretary C>E-="j
A. Preston Howard, r., P.E., Director
BNVIRO
December 21 1995 & NATT
Arthur P.Raymond, Project Manager DEI
Crescent Resources, Inc.
00 South Tryon Street, Suite 1300 DIVISI"Bri 4Ir to
Charlotte, North Carolina. 28202 FIGIBRISH
Subject; Permit No. 'W
Crescent Resc
Peninsula Y'ac
Pressure Sew
Mecirlenbur t
Dear Mr. R yrnond.
In accordance with your application received October 19, 1995, we art
o. WQ00116i , dated December 21, 1995, to Crescent Resources, In,
operation of the subject wastewater collection extension.
ntained in this permit ari
[ten request within 30 c
itten petition, conformin
ce of Administrative He
made this permit shall n
LandDesi n Engineering Services, Inc.
). Box 29535, Raleigh, North Carolina 2 2 -0535 Telephone 919-7 - 08
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -concur
rid
leis
rth
17,

7EWATER COL;. EC
date of
1. This permit
conditions c
The facilities mi
The sewage a
Utility De artm
the receiving sti
the nature an
subject to the
ace with the
data.
scribedin the

installed in accordance with this permit, the approved plans and
supporting materials. Mail the Certification to the Water Quality Pern
P.O'. Box 29535, Raleigh, NC 27626-0535.
8. A copy of the approved plans and specifications shall be maintained on
minimum of fare years from the date of the completion of construction,
to an enforcement action by the Division of Environmental Management in accordance with North
Carolina General Statute 14 -215.6(a) to 143.215.6(c).
10. The issuance ce of this permit 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.
11. The Permittee shall provide for the pump station(s) and force main(s) the following items:
a. Pump on/off elevations located so that -g pumping cycles may be achieved per hour in any
centralized pump station serving more than one bundling.
b. At least 24 hours of storage capacity above the high water alarm activation level for any
simplex pump station serving a single building.
c. An air relief valve located at all high points along the: force main.
d. A screened vent for the wet well.
e. Fillets located in the wet well(s) at the intersection of the flooring and sidewali .
f. Three feet of cover (minimum) over the force main or the use of ferrous rr �kterial where three
feet cannot be maintained.
g . Sufficient devices which will protect the pump station from vandals.
h. Flood protection if the pump station is located below the 100-year flood elevation.
12. 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 that may be
required by this division, such as the construction of additional or replacement wastewater
collection facilities.
13. ' Noncompliance Notification:
The Permittee shall report by telephone to the Mooresville Regional Office, telephone no. (04)
663-1699, as soon as possible, but in no case more than 24 hours or on the next working day
following the occurrence or first knowledge of the occurrence o either of the following:
a. Any process unit failure, due to known or unknown reasons, that render the facility incapable
of adequate wastewater transport such as mechanical or electrical failures of pumps, tine
blockage or breakage, etc,
b. .Any failure of a pumping station or sewer line resulting in a by-pass directly to receiving
waterswithout treatment of all or any portion of the influent to such station or facility.

No, WQOO 11662
,)er 21, 1995
as a dulv repkrpmd Profe,,Rrional Fnfyinaor in thi-, State of North
)rQiect,
Project Name Locatio)
ignature Registration No.
ate
4

1009940mmappwi
FOR TfIE ENVIRONMENTAL
MANAGEMENT COMMISSION Name
A. ston ard, r., P.E., ctor Sigaa=
Division Of ml Manapm-ent
nd u��m�ond P �Pr
er
Print Name and Title
(D=)
2

DIVISION OF ENVIRONMENT MANAGEMENT
September S, 1995
MF,MORANDUM
TaJ Greg Ni ich „u t
T IJ. Ruth Swanek
Carla Sanderson
FROM: Jacquelyn ' .1' dwell
SUBJECT: Request for permit modifications by CMUD-McDowell Creek VAVTP
IMPS Permit No. NCO036277
Mecklenburg County
e Instream Assessment Unit has reviewed the requests for permit modifications
by the subject facility and have the following °recommendations:
Item elet on of quarterly monitoring for fluoride and chloride
In the evaluation of the self monitoring data. from 1994 and 1995, 5, the analysis indicated that
effluent limitations for fluoride and chloride were no longer needed. The maximum
predicted vanes for both constituents are greater than 10°' of the allowable effluent
concentration. In addition, because these two constituents are consistently discharged from
the McDowell Creek VAVIP, the Instrearn Assessment Unit is recommending the
continuation of a minimum of quarterly monitoring for fluoride and chloride for water
quality protection. The reduction weekly monitoring of the effluent limits to only four
times per year should present some savings to the facility.
Item .li .thane of chronic toxicity test from ass/Fail to Phase 11
test procedure - I have contacted Matt Matthews of Aquatic Toxicology and he will
review this item and send a memo. Tentatively, he has indicated that he has no problems
with the change to the Chronic Phasell"limit.
If there are any additional questions, please contact me.
I€st}n
Pe