NC0074268_Permit Issuance_20030909

Michael F. Easley, Governor
State of North Carolina
William G. Ross. Jr.. Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
September 9, 2003
Mr. David Shellenbarger
City of Gastonia `t 8 0:7;
P.O. Box 1748 rs6liJ'
Ili>..
Gastonia, North Carolina 280531 : ��
Subject: NPDES Permit Issuance
Permit No. NC0074268
Crowders Creek WWTP
Gaston County
Dear Mr. Shellenbarger:
In accordance with City of Gastonia's request of June 27, 2003, the Division is forwarding herewith a
modification of the City's NPDES permit for the Crowders Creek WWTP. This permit modification
is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the
Memorandum of Agreement between North Carolina and the U.S. Environmental Protection
Agency dated May 9, 1994.
The Division received no public comments the draft modification during the 30-day public review
period and is issuing the modification as drafted. The affected pages of the permit are enclosed.
Please insert these in your existing permit and discard the replaced pages.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within
thirty (30) days following receipt of this letter. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless
such a demand is made, this permit shall be final and binding.
Please take notice that this permit is not transferable except after notice to the Division of Water
Quality. The Division may require modification or revocation and reissuance of the permit.
This permit does not affect the legal requirements to obtain other permits which may be required by
the Division of Water Quality, the Division of Land Resources, the Coastal Area Management Act, or
any other federal or local governmental permit.
North Carolina Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
[phone] NCDENR
FAX [phone] Customer Service
On the Internet at htto://h2o.enr.state.nc.us/ 1 800623-7748

NIr. David Shellenbarger
City of Gastonia
Permit No. NC0074268
Page 2
If you have any questions concerning the final permit or the requirements for your facility, please
contact Mike Templeton at [phone], extension 541, or at [e-mail].
Sincerely,
ORIGINAL `'GNED BY
Michael E. 1 t, Teton
Alan W. Klimek, P.E.
Director
Enclosures: Permit NC0073268 (cover & 1 page modified)
cc (w/ enclosure): Mooresville Regional Office / Water Quality
Point Source Compliance Enforcement Unit
Technical Assistance and Certification Unit
NPDES Unit Files
Central Files

Permit NC_1074268
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations
promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution
Control Act, as amended, the
City of Gastonia
is hereby authorized to discharge wastewater from a facility located at the
Crowders Creek Wastewater Treatment Plant
off U.S. Highway 321 south of Gastonia
Gaston County
to receiving waters designated as Crowders Creek in the Catawba River Basin in accordance with effluent
limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV hereof.
The permit shall become effective October 1, 2003.
This permit and the authorization to discharge shall expire at midnight on August 31, 2005.
Signed this day September 9, 2003.
ORIGINAL SIGNED Y
Michael E. Templeton
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0(_)7426ti
A. (3) COLOR PERMITTING REQUIREMENTS FOR TIER 1 FACILITY
Cro« ders Creek \\-\\"'l.P has been classified as a 'Tier 1 color discharger in accordance with North Carolina's Color
Permitting Strategy. The permittee will conduct color monitoring of instream stations (upstream, downstream) on a
monthly basis during summer season (April -October). "The permittee u-ill record \yhether a Color plume was observed
around the outtall pipe during the monthly instream sampling events, and include dolt information on the monthly
discharge monitoring report. Effluent samples will be collected monthly For color on a year-round basis. Color samples
will be analyzed for _\D\[[ color at natural pH. Effluent samples will consist of 24-hour composites, while instream
samples will be collected as grabs. tramples \gill be analyzed by a state certified laboratory.
If data shoe' that water duality standards for color are being violated by the discharge permitted by the terms of this
permit, then the Director may reopen this permit for the purpose of imposing additional requirements pursuant to 15A
NCAC 2H.0114. Alternatively, if future conditions change and color is no longer a component of the influent
wastestream, then the permittee may request a permit modification to remove color permit requirements.
A. (4) SECONDARY CONTAINMENT SPECIAL CONDITION
Within one year of permit issuance, the permittee shall establish a plan for spill containment around the sludge loading
area and construct secondary containment as necessary.
fL!.l'i
•
This page modified effective October 1, 2003.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION 4
ATLANTA FEDERAL CENTER
61 FORSYTH STREET
ATLANTA, GEORGIA 30303-8960
SEP 0 4 2003
Mr. Mike Templeton
North Carolina Department of Environment and
Natural Resources
Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
SUBJ: NPDES Permit for C:rowclers Creek WWTP
Permit No. N+. UU %.1_. .
SEP - 8 2003
In accordance with the EPA/NCDENR MOA, we have completed review of the draft
permit referenced above and have no comments on its conditions. We request that we be
afforded an additional review opportunity only if significant changes are made to the permit prior
to issuance, or if significant comments objecting to the draft permit are received. Otherwise,
please send us one copy of the final permit when issued.
If you have any questions, please call me at [phone].
Sincerely,
Marshall Hyatt, Environmental Scientist
Permits, Grants, and Technical Assistance Branch
Water Management Division
Internet Address (URL) • http://www.epa.gov
Recycled/Recyclable • Printed with Vegetable 00 Based Inks on Recycled Paper (Minimum 30% Postconsumer)

Re: nc0074268 gastonia - u/d color
From: Hyatt.Marshall®epamail.epa.gov
Subject: Re: nc0074268 gastonia - u/d color
To: Mike Templeton <[e-mail]>
I appreciate your digging into this. makes sense to me. will send you
a no comment letter. thanks Marshall
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1of1
09/04/2003 9:31 AM

nc0074268 gastonia - u/d color
. Froni Mike.Templeton <niike.templetbn®cmail'riet>.
Subject; nc0074268 gastonia u/d color
To: Marshall Hyatt<[e-mail]>
ed5:14PM
Marshall -
Here's a partial response on the Gastonia - Crowder Creek color question. Haven't reached anyone at the City yet, but did
look at the monitoring data more closely and thought you might be interested in what they showed.
Check out Chart 1 in the attached spreadsheet. It seems to show that the instream color since late last year (and June '03,
in particular) is independent of effluent color. Although it doesn't tell us what *is* causing the instream color to vary so
widely, I suspect it's related to elevated turbidities - sections of the creek upstream are channelized, and that part of the
state has had an unusually wet year. Here's a graph of the last month's flows on the SF Catawba River in eastern Gastonia (and
rains have been subsiding compared to the spring). Source:
http: //waterdata.usgs.Qov/nwis/uv?format=gifEtperiod=31 aamp;site no=02145000
Discharge, cubic feet per second
5000
4000
3000
2000
1000
200
USGS 02145000 SOUTH FORK CHTALIBO RIVER AT LOLIELL, NC
I
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___'
.'. _m is
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AAAA
Rug 09 Hug 16 Rug 23
DRIES: 08/03/2003 to 09/03/2003 23:59
EXPLANATION
DISCHARGE
MEDIHH DRILY STREHNFLOLI BASED OH 48 YEARS OF RECORD
Rug 30
I will still ask the City if they know of any explanation for the color in the creek, then let you know what I find out.
- Mike T
Michael E. Templeton, P.E.
North Carolina Division of Water Quality
NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
919-733-5083 x541 FAX: [phone]
mai lto: mike. templeton@ncmai 1. net
M74268 cotor.xls
Name: 74268 color.xls
Type: EXCEL Fite (application/msexcel)
Encoding: base64
Download Status: Not downloaded with message
1 of 1 09/04/2003 9:31 AM

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DENR/DWQ
ADDENDUM TO FACT SHEET - PERMIT MODIFICATION
NPDES No. NC0074268
Facility Information
Applicant/Facility Name:
City of Gastonia — Crowders Creek WWTP
Applicant Address:
P.O. Box 1748; Gastonia, North Carolina 28053-1748
Facility Address:
Off US Highway 321 south of Gastonia
Permitted Flow
6.0 MGD
Type of Waste:
42`)/0Domestic
58% Industrial
Facility/Permit Status:
Class IV/Active; Modification
County:
Gaston County
Miscellaneous
Receiving Stream:
Stream Classification:
Crowders Creek
C
Regional Office:
State Grid / USGS
Quad:
Mooresville
C14NW
303(d) Listed?
Yes
Permit Writer:
Mike Templeton
Subbasin:
03-08-37
Date:
July 22, 2003
Drainage Area (mi2):
Summer 7Q10 (cfs)
70.4
13.3
Winter 7Q10 (cfs):
20
30Q2 (cfs)
28
Average Flow (cfs):
IWC (%):
82
42
Lat. 35° 10 10" N Long. 81° 11' 48" W
Note: Refer to the May 2002 fact sheet for a more thorough description of the facility and the basis of
requirements in this NPDES permit.
PROPOSED ACTION
The Division proposes to modify NPDES permit NC0074268 for the Crowder Creek
WWTP in order to reclassify the facility to Tier 1 under the Division's Color Policy.
SUMMARY
The Crowders Creek WWTP is a 6.0 MGD wastewater treatment plant, one of two
operated by the City of Gastonia. In its 2002 permit renewal, the plant was classified as a Tier 3
facility under the Division's Color Permitting Requirements Policy.
In May 2003, the dye house that had been the primary source of color in the plant's
discharge ceased operations. Color levels in the creek dropped significantly and have remained
at near -background levels (<50 ADMI units) since that time.
The City has requested that the Crowder Creek WW 1'1' be reclassified from a Tier 3 to a
Tier 1. The change would have no effect on the effluent limitations and monitoring
requirements in the existing permit. It would, however, eliminate the requirement for the City
to prepare a Pollution Prevention/ Best Management Practices report and to conduct a Color
Reduction Study.
In light of these changes, the Division holds that reclassifying the facility to Tier 1 is
consistent with its Color Policy and proposes to modify the facility's permit accordingly.
Fact Sheet
NJPDES NC.007.1268 - !lixiiIlea tion (2003)
Page 1

This Tier 1 classification is conditioned on continued demonstration that, with the City's
discharge, the color levels in the creek remain low. If color levels in the discharge and the creek
increase significantly, the Division may re-evaluate the classification under the Color Policy
and again modify this permit.
PUBLIC COMMENT ON DRAFT PERMIT
A public notice soliciting comments on the draft permit was published in The Gaston
Gazette on July 26, 2003, and comments were accepted until August 25. No comments were
received during that time. The Division will issue the permit modification as drafted and with
an effective date of October 1, 2003. The permit's expiration date, August 31, 2005, is not
affected.
Pact Sheet
JPDES NC00?4268 - Modification (2003)
Page 2

NUHUC NOTICE
v
AFFIDAVIT OF INSERTION OF ADVERTISEMEr
The Gaston Gazette
Gastonia, NC
Gaston County
I, Carla Potter Legal Advertising Manager of the The Gaston Gazette, do certify thi
the advertisement of PUBLIC NOTICE
STATE OF NORTH CAROLINA ENVIRONMENTAL
MANAGEMENT COMMISSION/NPDES UNIT
Measuring 8.42 Inches appeared in The Gaston Gazette, a newspaper published in
Gaston County, Gastonia, NC, in issues
JULY 26, 2003
Sworn to and subscribed before me this/ (�' . day of
-NV
Asomerst
r
Legal Advertising Manag
,2003
Notary Public
My Commission Expires March 5, 2008
P,U G - 5 2UU3
State of North Carolina
Environmental Managemen
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, N zs
Notification of Intent to Issue
NPDES Wastewater Permit
On the basis of thorough sta
review and applications of N(
General Statute 143.21, Publi
law 92-500 and other lawn
standards and regulations, th
North Carolina Environments
Management Commission pre
poses to issue a National Polk
tant Discharge Elimination Sy:
tem (NPDES) wastewater di;
charge permit to the person(:
listed below effective 45 day
from the publish date of this nc
lice.
Written comments regardin
the proposed permit will be at
cepted until 30 days after th
publish date of this notice. P
comments received prior to thi
date are considered in the fin
determinations regarding th
proposed permit. The Direct
of the NC Division of Wati
Quality may decide to hold
public meeting for the propose
permit should the Division r
ceive a significant degree
public interest.
Copies of the draft permit ar
other supporting information (
file used to determine corn
tions present in the draft pern
are available upon request al
payment of the costs of repr
duction. Mail comments and
requests for information to tl
NC Division of Water Quality
the above address or call Iv
Valery Stephens at (91
733-5083, extension 52
Please include the NPDES a
mit number NC0060755, in a
communications. Interest
persons may also visit the Di
sion of Water Quality at 512
Salisbury Street, Raleigh,
e 27604-1148 between the hot
of 8:00 a.m. and 5:00 to revii
information on file.
The City of Gastoi
(C0074268) has applied
modification of its permit for!
' Crowders Creek WWTP, d
charging to the Crowds
Creek, a Class C water in 1
Catawba River Basin. The p
posed change will reclassify 1
facility from a Tier # to a Tie
facility in regards to` color c
charge requirements and,
have no effect on the efflu
limitations or monitoring
quirements in the existing p
mit. yf
1 C-July 26, 2003

For over three years, the City of Gastonia has been monitoring for ADMI color at
its treatment plant and at industries that feed into the plant to determine the
sources of color at the plant (data is included as attachment A). Anvil Knitwear
was determined to be the significant contributor to color at the Crowders
Treatment Plant. Anvil Knitwear had a dye -house facility located in the City of
Kings Mountain, which previously discharged almost one million gallons per day
of wastewater to the Crowders Treatment Plant. This discharge contained
significant color in the waste dyes, which were not removed through the
biological process at the Crowders Creek Plant. On September 13, 2002, the
majority of Anvil's discharge was diverted away from the Crowders facility and
began being discharged to a City of Kings Mountain treatment plant. Anvil
closed its dye house in Kings Mountain in May 2003, and the inter -city
agreement between Gastonia and Kings Mountain, as well as King Mountain's
significant industrial user permit, prevent Anvil's flow from being diverted back to
the Crowders Plant.
Soon after Anvil's departure
from the Crowders Treatment
Plant's flow, the wastewater
being treated at the plant,
and the discharge from it,
visibly cleared up. Color in
the plant effluent dropped
from an average of 220
ADMI units to an average of
32 ADMI units, which is
comparable to color readings
in Crowders Creek upstream
of the treatment plant's
discharge. Monitoring of the
plant effluent has occurred at
least monthly with no
excessive color detected.
Color (ADMI Units)
Color at Original pH on Crowders Effluent
450 0
400 0
350.0 --
3000 --
250 0
2000
150 0
100 0
50 0 �-
00
00
111116
Likewise, since September 2002, rarely has color been visibly observed at the
Crowders Treatment Plant other than very occasional faint tints, which we
believe resulted from Anvil's partial discharge to the Crowders WWTP prior to the
dye house closing in May 2003.
A Tier III facility is required to perform two studies: one investigating the sources
of color, and another one investigating ways to remove at least 90% of the color
from the influent. These studies would have little value and be difficult for the
City of Gastonia to perform since there are no significant sources of color into the
Crowders Treatment Plant at this time. Currently, the facility is receiving no
significant amounts of textile dyes or other source of color, and has no significant
color in its effluent. Furthermore, the City is prepared to restrict the type of new
discharges it receives to prevent significant color discharge in the future (one

industry discharging into Gastonia's Long Creek WWTP has already been
restricted for ADMI color in its discharge). For these reasons, the City feels that
a Tier I rating would be more appropriate for the facility at this time.
On behalf of the City of Gastonia, I respectfully ask you to consider the changing
condition of the Crowders plant discharge, and modify NPDES permit
#NC0074268 to reclassify the facility as color Tier I. We would fully welcome any
physical review of the discharge site and would gladly assist with this in any way
that we can. Please feel free to contact me any time at 704-842-5106 or
davids(a�cityofgastonia.com.
Sincerely,
David Shellenbarger
Assistant Division Manager — Compliance
City of Gastonia
Attachments:
A. Graph and data regarding ADMI color analyses at Crowders Creek WWTP
B. Graph and data regarding ADMI color analyses on Crowders Creek
C. Graph and data regarding ADMI color for dischargers to Crowders Creek WWTP
D. Check for $860.00 permit revision fee
CC: Mr. Matthew W. Jordan, Director of Public Works and Utilities
Mr. Larry Cummings, Division Manager of Wastewater Treatment
Mr. David Hux, Assistant Division Manager — Operations
Mr. David Morgan, Senior Plant Operator — Crowder Creek WWTP
Ms. Nancy Matherly, Industrial Chemist
Mr. L. Ashley Smith, City Attorney
Ms. Natalie Sierra, Division of Water Quality — Raleigh
Mr. Rex Gleason, Division of Water Quality — Mooresville
Ms. Donna Lisenby, Catawba Riverkeeper
CERTIFIED MAIL: 7099 3400 0011 5855 7255

Re: gastonia - Crowders Creek
,',,From: Michael Parker "<M chael.Parker6ncmait:net>.
Subject: 'Re_ gastonia - Crowders Creek
To: Mike Templeton <[e-mail]>
Mike,
Based on a recent inspection by Wes Bell at this facility in July of this
year, effluent color has essentially been eliminated and is no longer a
factor instream. Numerous aquatic life (fish) were observed both at the
effluent and downstream of this discharge. Therefore, based on the recent
visit of this facility by MRO staff, we are able to verify that effluent
color has, for all intents and purposes, been eliminated in the receiving
stream.
If you have any other questions, please advise.
Michael Parker
Mike Templeton wrote:
> Mike -
> I got Gastonia's request to reclassify the Crowders Creek plant from
> Tier 3 to Tier 1 for color. We're okay with it here, and I've drafted up
> the mod package. Before we send it to public notice, I wanted to see if
> you can verify the color in the creek has dropped. They describe a
> pretty dramatic difference since last year. If you have *not* been out
> there and checked it out, can you or someone else at MRO do that in the
> next month, while it's out for public review? In that case, I'll add a
> note to the cover letter saying the mod is dependent on a stream
> inspection or something like that.
> Just FYI, I'll be reviewing Alcoa's comments and working on a 2nd draft
> of the permit Tuesday and Wednesday. Already worked up a 2nd draft of
> the e-flex permit (it's not yours, but 1 don't remember whose it is).
> I'm hoping to get both of these back out by Friday, then I'm gone to the
> Pacific NW for two weeks.
> Thanks.
> - Mike T
Michael Parker - [e-mail]
Environmental Engineer II
North Carolina Dept. of Environment Ft Natural Resources
Division of Water Quality
919 N. Main Street
Mooresville, NC 28115
Ph: 704.663.1699 Fax: [phone]
Wed 9:40 AM
Michael Parker <[e-mail]>
Environmental Engineer II
NC DENR - Mooresville
Division of Water Quality
1 of 2 08/15/2003 11:03 AM

A:O* *4R>
;! GASIONIA
rr
181j
(City of a5tonta
P.O. BOX 1748
Oa5tonta, port!) Carolina 28053-174S
WASTEWATER TREATMENT DIVISION
June 23, 2003
Mr. David Goodrich
Supervisor, NPDES Permitting Unit
Division of Water Quality
1617 Mail Service Center Road
Raleigh, North Carolina 27699-1617
Te-impidat
{i'�IIUY ri.cG(-•
J
J U N 2 7 2003
Reference: Request for permit modification
Crowders Creek WWTP, NPDES Permit #NC0074268
Dear Mr. Goodrich:
Following its last NPDES permit renewal, the City of Gastonia's Crowders Creek
wastewater treatment plant was classified as a Tier III facility for color. At the
time of the permit issue, the Crowders Treatment Plant was discharging a dark
reddish -brown effluent due to wastewater the plant was receiving from a textile
dye -house. When the permit was issued, the City of Gastonia did not dispute
this classification. Since receiving the permit, the characteristics of Crowders
Treatment Plant's discharge have changed significantly, and color is no longer
visible in the plant effluent. Because of these changed circumstances, the City of
Gastonia is requesting a modification to NPDES Permit (NPDES #NC0074268)
to reclassify the plant as a Tier I facility. Enclosed please find a check in the
amount of $860.00 for a major permit modification.
Crowders WWTP discharge prior to 9-13-02.
n ^ A
American Quality Assessors
Crowders WWTP discharge today.
ISO 14001 Certified
Pure and -Clean for our JieCtts and Streams

Attachment A
450.0
400.0
350.0
300.0
250.0 '
a>
m
�a
200.0
150.0
•
1 00 .0
50.0
Effluent - Color at original pH
0.0
\00 \�O \oo \oo boo �Do ���. \o� \o� \o� \o�. \o�. \00, \o`l, p`L §o`l, §o`l, \011. \0`5 \03 \p�
Date
—♦- Effluent - Color at original pH

Attachment A
Crowders Creek Wastewater Treatment Plant
Summary of Plant Color Data
Plant Effluent Secondary Clarifier
ADMI Color at Original pH ADMI Color at pH 7.6 ADMI Color at Original pH ADMI Color at pH 7.6
01/05/2000 115.8 46.5
01/07/2000 255.7 265.1
01/28/2000 183.2 188.9
02/15/2000 104.9 102.2
03/20/2000 258.9 261.9
04/04/2000 339.0 325.0
04/14/2000 205.0 217.0
05/01/2000 58.0 57.0
06/09/2000 165.0 173.0
07/19/2000 320.0 302.0
08/29/2000 289.0 304.0
09/20/2000 425.0 431.0
10/05/2000 253.3 271.1
11 /01 /2000 254
11 /21 /2000 362
12/19/2000 441
01/12/2001 550
01/26/2001 412
01/29/2001 472
02/07/2001 500
02/13/2001 485
03/13/2001 607
03/21/2001 392
03/27/2001 440
03/29/2001 448
04/02/2001 423
04/09/2001 482
05/02/2001 376
05/22/2001 554
05/29/2001 290
06/18/2001 327
06/26/2001 132
07/02/2001 290
07/20/2001 194
07/26/2001 152
07/31/2001 170 177
08/02/2001 200
08/06/2001 149
08/09/2001 321
08/15/2001 264
08/17/2001 402
08/22/2001 337 338
08/23/2001 350
08/29/2001 199
08/30/2001 184
09/05/2001 87
09/06/2001 148 146
09/12/2001 152 156
09/14/2001 120 128
09/17/2001 214 219

Attachment A
Plant Effluent Secondary Clarifier
ADMI Color at Original pH ADMI Color at pH 7.6 ADMI Color at Original pH ADMI Color at pH 7.6
09/20/2001 246 261
09/27/2001 182 184
09/28/2001 157 169
10/03/2001 212 234
10/04/2001 399 325
10/10/2001 301 305
10/11/2001 316 322
10/17/2001 309 402
10/18/2001 383
10/24/2001 289 290
10/25/2001 220 235
11/01/2001 371 397
11/08/2001 221 339
11/15/2001 168 177
11/29/2001 118 120
12/06/2001 251 256
12/13/2001 324 348
12/20/2001 213 249
12/27/2001 51 56
01/03/2002 20 25
01/10/2002 158 167
01/17/2002 167 206
01/24/2002 119 144
01/31/2002 196 272
02/07/2002 146 161
02/14/2002 147 261
02/21/2002 149 239
02/28/2002 633
03/07/2002 219
03/14/2002 122.0
03/21/2002 133
03/28/2002 150
04/04/2002 122
04/10/2002 124
04/18/2002 106
04/25/2002 189
05/02/2002 588
05/09/2002 585
05/16/2002 528
05/23/2002 286 358
05/30/2002 370 377
06/13/2002 245 267
06/27/2002 154 162
07/09/2002 146.0 158.0
07/11/2002 - 194 212
07/25/2002 333 376
08/01/2002 535 573
08/08/2002 171 181
08/13/2002 177.6 188.5
08/15/2002 320 346
08/22/2002 342 376
08/29/2002 148 169
09/05/2002 184 188
09/10/2002 106.0 106.0
09/12/2002 151 178

Attachment A
Plant Effluent Secondary Clarifier
ADMI Color at Original pH ADMI Color at pH 7.6 ADMI Color at Original pH ADMI Color at pH 7.6
09/19/2002 57 58
09/26/2002 37 37
10/03/2002 48 54
10/08/2002 24.1 28.0
10/10/2002 38 40
10/24/2002 27 33
10/29/2002 25.0 25.0
11/05/2002 28.0 31.0
11/12/2002 28.1 29.0
11/19/2002 40.1 49.6
11/26/2002 39.4 34.0
12/03/2002 42.9 37.5
12/10/2002 36.4 36.8
12/17/2002 42.1 36.0
12/31/2002 24.4 22.1
01/07/2003 30.8 28.9
01/14/2003 38.4 41.1
01 /21 /2003 127.6 121.5
01/28/2003 31.8 33.6
02/04/2003 37.2 48.7
02/11/2003 38.4 32.2
02/18/2003 31.1 23.4
03/04/2003 36.8 43.6
03/11/2003 49.1 61.9
03/18/2003 27.5 34.5
03/25/2003 19.8 21.5
04/01/2003 21.5 28.9
04/08/2003 41.7 37.5
04/15/2003 18.0 20.0
04/22/2003 14.5 11.8
04/29/2003 30.0 34.3
05/06/2003 23.5 22.7
05/13/2003 18.8 26.5
05/20/2003 15.4 17.5
05/27/2003 13.0 21.8
06/03/2003 21.6 18.5
06/10/2003 28.5 24.8
06/17/2003 18.6 21.4
Avg. 91.2 92.5 205 277
Min. 13.0 11.8 20 25
Max. 425.0 431.0 535 633
Std. Dev. 102.2 102.3 108 148

Creeks - Color at Original pH Attachment B
Date
Upstream -
Color at
original pH
Down- stream
A - Color at
original pH
Down- stream
B - Color at
original pH
07/09/02
25.7
115.1
106.4
08/13/02
11.9
159
145.2
09/10/02
37
85
89
10/07/02
38.6
35.4
44.2
11 /11 /02
23
25.8
27.3
12/09/02
20.6
41.4
27.3
01/13/03
5.2
11.5
10
02/10/03
42.7
17.2
23.6
03/17/03
40.6
97.0
114.4
04/14/03
19.3
50.6
64.1
05/12/03
18.7
29.8
37.9
06/10/03
173.0
283.8
317.8

Attachment C
Average ADMI Color and Flow of Significant Discargers to Crowders WWTP
(1 /1 /00 to 3/27/03)
600 , 1.400000
500 -
400
c
300
0
O
U
200
100
0
1.218579
Bessemer City
Noveon Carolina By -Products Town of Clover City of Kings Rauch Industries
Mountain
Industry
Color at original pH • Flow
1.200000
1.000000
0.800000 0
a
2
0.600000 0
LL
0.400000
0.200000
0.000000

Industry Averages
Attachment C
Color at
original pH
Flow
Bessemer City
230.22
0.367262
Noveon
341.55
0.023283
Carolina By -Products
166.83
0.167344
Town of Clover
148.39
0.262640
City of Kings Mountain
484.84
1.218579
Rauch Industries
42.28
0.010430

Attachment B
350
300
250
200
150
100
50
0
Creeks - Color at original pH
`f3\ ��O� VP\ \IO\O� 45\ \P\ O\�O� \<0\- \��\O� ��0� ��\O� �O\O� �\O� �\O� �\O� �\O� ��\O� �\�\O� \��\O� \�\O� \4 \�c§ \�\Orb Orb O� \•\\O� \�c$)
Date
Upstream - Color at original pH
f Down- stream A - Color at original pH Down- stream B - Color at original pH

350 -
300
250
200
150
100
50
0
In Jun'02, effluent remains low,
but color is high in both
upstream and downstream
samples.
fthe beginning of this period, effluent value
are considerably higher than upstream. Color
at the downstream stations tracks well with the
effluent values - about what we would expect
given the low dilution (41 % IWC).
From Oct'02 to present, effluent values are
consistently lower, similar to background
levels. For a few months, downstream values
mimic the effluent.
Beginning about Dec'02, downstream
values vary independent of effluent
values. May be related to exceptionally
wet weather in the area.
� -U
— M— E
D1
D2
Jul-02 Aug-02 Sep-02
Oct-02 Nov-02 Dec-02
Jan-03 Feb-03 Mar-03 Apr-03
May-03 Jun-03 Jul-03
74268 color.xls, Chartl
09/04/2003