NC0005312_Wasteload Allocation_19930521

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0005312
PERMITTEE NAME: Chatham Manufacturing, Incorporated
FACILITY NAME: Chatham Manufacturing, Incorporated
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.: 001
Design Capacity: 4.0 MGD
Domestic (% of Flow): 1W
Industrial (% of Flow): 90-%
Comments:
See attached effluent guidelines 40 CFR 410 figures
RECEIVING STREAM: Yadkin River
Class: C
Sub -Basin: 03-07-02
Reference USGS Quad: C 15 NE
County: Surry
Regional Office: Winston-Salem Regional Office
(please attach)
Previous Exp. Date: 5/31/93 Treatment Plant Class:
Classification changes within three miles:
None
Requested by: Greg Nizich0
Prepared by:
Reviewed by: (gin
III
Date: 2/3/93
5/t1713
5ja 1A3
Date:
Xf azrd. A ef)71 Date:
Modeler
Date Rec.
#
on...3
z7/41 /13
—1 33 Z-
Drainage Area (mil) 676 Avg. Streamflow (cfs): I 9a
7Q10 (cfs) 31,1- Winter 7Q10 (cfs) df-5o 30Q2 (cfs)
Toxicity Limits: IWC 1 -9 % Acute/Chronic
Instream Monitoring: `isrRu[ P/F
Parameters 7 P_ -D. 0 . rn, vrjc n vi TY CDs
Upstream
Downstream
Y
Y
Location Ai- casr 100' u�r�
Location xr s-r 'd70' po wj»Avir
Vera6 .� ,rs;54hu,e Tea.)
Effluent
Characteristics
Summer
mcw-r 1ANI4.
Vilimer
13;tRI ,M4'
BODS (raga)
St?
1 ill
NH3-N (mg/1)
D.O. (mg/1)
TSS ( ji
2230
44 35-
F. Col. (/100 ml)
200
pH (SU)
6-1
Col) ("/DRI)
1329ti
26516
.t+-f'v -s %c)
Z(i,
5 2
• oAtiwh (#/akY)
13
24 (7eo»,
2-6
1'I.1Cmo r_ ('/DMI)
13
Comments:
rev
moo w .

April 15, 1993
NC0005312
Chatham Manufacturing Inc.
FOR APPROPRIATE DISCHARGERS, LIST COMPLETE GUIDELINE LIMITATIONS BELOW
Effluent Characteristics
Monthly
Average (lbs/day)
Daily
Maximum (lbs/day)
Comments
BOD5
837
1,674
All values are lower than in '88 permit. Production
COD
13,298
26,596
figures have dropped since that time.
TSS
2,180
4,360
Sulfide
26.0
52.0
Phenol
13.0
26.0
Total Cr
13.0
26.0
pH
6-9
6-9
Type of Product Produced
1,000 Lbs/Day Produced
Effluent Guideline Reference
Woven Fabric finishing (2262)
165.3
40 CFR 410.42 (Subpart D)
Stock and Yarn Dyeing and Finishing (2269)
78.8*
40 CFR 410.72 (Subpart G)
Low water use (Yarn Texturing) (2282)
33.7*
40 CFR 410.32 (Subpart C)
* Figures revised from original application in letter dated 2/1

NC0005312
Chatham Manufacturing Inc.
FOR APPROPRIATE DISCHARGERS, LIST COMPLETE GUIDELINE LIMITATIONS BELOW
February 3, 1993
Effluent Characteristics
Monthly
Average (lbs/day)
Daily
Maximum (lbs/day)
Comments
BOD5
765
1,530
All values are lower than in '88 permit. Production
COD
12,430
24,860
figures have dropped since that time.
TSS
2,000
4,000
Sulfide
23.5
47
Phenol
11.8
23.6
Total Cr
11.8
23.6
pH
6-9
6-9
Type of Product Produced
1,000 Lbs/Day Produced
Effluent Guideline Reference
' Woven Fabric finishing (2262)
165.3
40 CFR 410.42 (Subpart D)
Stock and Yarn Dyeing and Finishing (2269)
58.4
40 CFR 410.72 (Subpart G)
Low water use (Yarn Texturing) (2282)
_ 29.9
40 CFR 410.32 (Subpart C)

C•'15 NE
80°52'30"
36 ° 15'
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4009
4008
UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
51 E.
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513 STATE ROAD 6 MI. 514
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LU£ RIDGE PARKWAY 16
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Ir

NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES AND
COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT
Winston-Salem Regional Office
May 10, 1988
WV
MEMORANDUM
TO: Arthur Mouberry MAY ME
Permits and Engineering PERMITS & ENG
�iNtERIN(
THROUGH: Steve Mauney
Water Quality Supervisor
FROM: David Russe1142--
Environmental Specialist
SUBJECT: Request for Modifications to Draft NPDES Permit
Chatham Manufacturing Company
NPDES No. NC00,05312
Surry County
In response to the letter dated May 2, 1988, from the
subject facility requesting modifications, the Winston-Salem
Regional Office has the following recommendations.
For the three parameters fecal coliform, phenol, and
total chromium the facility has requested monthly
monitoring. It is recommended that monthly monitoring not
be granted even though effluent limits have been
consistently met for each parameter. However, it is
recommended that twice per month monitoring be granted.
Since the permit establishes monthly average limits more
than one sample is needed to determine compliance with
permit monthly average limits.
It is recommended that the requirement to monitor
sulfide not be dropped. It is recommended that twice per
month monitoring be allowed since there is a permit limit.
for this parameter.
The question of pounds per day limits for COD should be
addressed in Raleigh. The appropriate production rates $•.
should be used and the limits calculated and established in
the permit.
It is recommended that daily monitoring be required for
BOD and total suspended solids. Since flow rates vary
considerably from day to day during the week, daily
monitoring will more accurately reflect the pounds per day

Page 2
being discharged. Monitoring once per week may fall on a
lower or higher flow day and thus give a false impression of
the pounds per day of BOD or TSS being discharged. In
audition, the pounds per day daily average limit for TSS was
exceeded for January 1988. Daily monitoring would enable
plant performance to be better determined.
The question of dropping nitrogen, phosphorous,
toxicity and priority pollutants due to the "Hardison
Amendment" would appear to be a legal issue and should be
addressed by the appropriate persons in Raleigh.
Should you have questions or need additional
information contact our office.

Mr. Arthur Mouberry, P.E.
Supervisor, Permits & Engineering Unit
North Carolina Department of
Natural Resources & Community Development
Division of Environmental Management
P. 0. Box 27687
Raleigh, North Carolina 27611
CHATHAM MANUFACTURING COMPANY
ELKIN, NORTH CAROLINA 28621
TELEPHONE • (AREA 919)835 2211
May 2, 1988
;e yt•i.•
r• .•• ..iriS•
Ilit{ti
MA'1� 138:
DFRMI S ° [NCT Nt E1:ING
Dear Mr. Mouberry:
This is a follow-up to our recent telephone conversations concerning the draft
wastewater discharge permit (No. 0005312) for Chatham Manufacturing Company at Elkin,
North Carolina. I have taken the liberty under 15 NCAC 2B .0508(b)(1) of the statute
to submit a request and justification for modifications in the draft permit. Listed
below are the items that I believe should be modified.
Fecal Coliform to be changed from daily to once per month.
In our particular case, daily monitoring of fecal coliform would be
excessive. The data attached indicates that over the last three years
we have not exceeded the daily average at any time. Our facility treats
approximately 95 percent industrial waste and would not be as likely to
discharge as high a fecal as would a domestic treatment facility.
Phenol to be changed from weekly to once per month.
We have never had a problem with phenol, and the attached data shows
that the normal discharge is several times lower than the daily average.
The monthly monitoring, we feel, is sufficient for general monitoring
purposes.
l
Total Chromium to be changed from weekly to monthly.
The same reasons apply for total chromium as for phenol. We have never
had a problem with total chromium and feel monitoring once per month
will be sufficient.
wit
0 OA

• Mr,: Arthur Mouberry, P.E.
Page 2
May 2, 1988
IP '0,,
1:4:,1:1\14s.
, ,o„e w‘S•
� a�t'
CA
Sulfide to be removed from monitoring.
The discharge concentration of sulfide stays relatively the same and
rarely deviates from 0.1 ppm. The primary factor in pounds of discharge
is daily flow. Also, I have not found that sulfide monitoring is a
requirement in either the state or federal regulations. We have
monitored sulfide for many years, and there does not seem to be any
indication of a problem.
COD limits to remain the same as in previous permit.
As we discussed, the method used in the draft permit for calculation of
COD limits is correct according to the "Textile Mills Point Source
Category Effluent Limitations Guidelines" (40CFR Part 410). The only
question arises form the woven fabric finishing subcategory pertaining
to the factors used in calculating the daily average and maximum. The
factors as written are 30 and 60 pounds per day per thousand pounds
produced. The calculation of limitations for COD in our previous permit
used the factors 40 and 80 respectively. You were going to look at the
previous permit calculations and determine, if possible, the reason for
this. Taking into consideration the factors used, the COD limits would
increase from 7,611 to 9,535.5 pounds per day for daily average and from
15,223 to 19,070.9 pounds per day for daily maximum.
BOD and Total Suspended Solids to be changed from daily to weekly
monitoring.
From the past three years of monitoring data, we have never exceeded the
daily average discharge poundage for BOD. Also, for that period of
time, our maximum concentration has been below 30 ppm. We are at
present doing a weekly BOD and feel that is sufficient for monitoring
and permitting purposes.
We have also been able to keep the pounds of total suspended solids
(TSS) discharged under control. 0n rare occasions, the pounds of daily
discharge have been over the daily average limit, but never over the
daily maximum. We feel that weekly monitoring for a permit requirement
is sufficient.
- Total Nitrogen, Total Phosphorous, Chronic Toxicity and Priority
PoT-Tutants to be removed.
As we discussed earlier, these parameters either originate fror s'tat@@��,,;-
statutes or the Department of Environmental Management and do of hatle
federal requirements for permitting wastewater treatment facilities that
I can find. I realize also that from a permitting standpoint, 'you She...,
required to write this into permits of all major dischargers. I beli•ve
that these items should not be a requirement in permitting wastewater
treatment facilities because of the "Hardison Ammendment."

Mr. Arthur Mouberry, P.E.
Page 3
May 2, 1988
There are also a couple of errors on the "Supplement to Permit Cover Sheet."
The value of 8.1 MG should be changed to 2.9 MG for the equalization basin. The
value of 0.4356 MG should be changed to 0.04356 MG for the aerobic digester.
Please consider all of the above modifications, and let me know of any questions
or problems you may have.
Sincerely,
A\ iy,J,_)
A. Lynn Crouse
Project Engineer
/ct
Attachments

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Chatham Manufacturing, Inc.
NC0005312
Industrial - 100%
Existing
Renewal
Yadkin River
C
030702
Surry
WSRO
G. Nizich
2/3/93
C15NE
Request # 7332
,Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
RECEIVED
N.C. Dept. cf EHNR
APR 2 9 S941
Winston-Salem
Regional Office
870
314
450
1390
1.93
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Chatham Manufacturing has not changed overall production since their last permitting period. The
recommended loading rate will be very similar to the previous WLA.
The facility has had only 1 toxicity test failure in the past 4 years and 3 Fecal coliform violations in
the past 2 years. No instream monitoring was required in the permit, although TSB had
recommended it.
A model was performed for this facility in 1988 which included Abitibi -Price, Jonesville, and
Elkin WWTP. The model predicted that the effluent guidelines for Chatham Manufacturing would
not violate the D.O. standard. Because the facility has not increased production, the newly
recommended guidelines will also protect the D.O. standard (no new model was performed). All
limitations are subject to change when the Yadkin River Basin management plan is in place.
RESUBMITTAL OF WLA BASED ON NEW PRODUCTION NUMBERS.
Speci1 Schedule Requirements and additional comments from Reviewers:
Sai ri, S /2.7 �✓/ 2L' S SLY. i
-/03
Recommended by:
Reviewed by
Instream Assessment:
Regional Supervisor: c Date: 5.-5 —„
Permits & Engineering Date: 5 45
4 d�
Date: 4(2-0/t3
RETURN TO TECHNICAL SERVICES BY:
MAY 2 6 1993
* ' Pet- RA 1 6L 'uLU►JS Karim V -U4m9 Le ) Feoeam, C,P.tTF_ o'J 15 4
2 tM AJPATivki ()Am IC- fAc..iwri 1-1k9
Tv geCBMMw& P.
Ltoll I AM) Is PA%U. 4 - Dd NyT A4}JE

Type of Toxicity Test:
Existing Limit:
Recommended Limit
Monitoring Schedule:
Existing Limits
BOD5 (#/day):
TSS (#/day):
pH (SU):
COD (n (If: �"L,l/
Chromium (#/day):
Sulfide (#/day):
Phenol (#/day):
Fecal coli (#/100m1):
Recommended Limits
BOD5 (#/day):
TSS (#/day):
pH (SU):
COD ( 0j: A444,7 13298
Chromium (#/day): 13
Sulfides (ig/1):
Phenol (#/day): 13
Fecal coli (#/100m1): 200
TOXICS/METALS/CONVENTIONAL PARAMETERS
Chronic Quarterly
Chronic Qtrly P/F at 1.9%
Chronic Qtrly P/F at 1.9%
Feb, May, Aug, Nov
Monthly Avg Daily Max
876 1711
2165 4306
6-9
13383 26766
12.5 24
24 48
12.5 24
200 400
**
Monthly Avg
887
2230
Limits Changes Due To:
Other (onsite toxicity study, interaction, etc.)
** Limit based on federal criterion
Chatham Manuf. will not be able to meet this
limit based on current information. The past year
average for sulfide has been 388 µgi.
Daily Max
1749
4435
6-9
26596
26 (780 14/1)
104 µg/1
26
400
EL
EL
EL
EL
WQ
EL
2 0 5 2 Lpit4f 61,
Parameters) Affected
Change in production level: all
parameters are affected.
The federal criterion for sulfide is
2 µg/1. The allowable level
listed above is based on that
criterion. The production effluent
guideline for sulfide would be 26
#/day monthly avg and 52 #/day
daily max.
_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 limitations for additional
dischargers within this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: at least 100 ft upstream
Downstream Location: at least 300 ft downstream (and before the Jonesville Crk tributary)
Parameters: temperature, D.O., conductivity, BOD5
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
Special Instructions or Conditions
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.

f ♦ ,
Facility Name (i-CAV A,v LidMGCF- Permit # NCOOO 531Z- Pipe #
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina
Procedure - Revised *September 1989) or subsequent versions. Chronic Bioassay
The effluent concentration at which there may be no observable inhibition of reproduction or significant
is I .`l % (defined as treatment two in the North CarolinagT ant mortalitym
procedure document). The permit holder shall perform
Quarterly monitoring using this procedure to establish compliance with the
performed after thirty days from the effective date of this permit condition. The first test will be
Feb, M �Y � �u � o ✓ P� t during the months of
permitted final effluent discharge belowEffluent
treatment processes.
g this shy °�� at the NPDES
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 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 dosefresponse 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
begin immediately until such time that a single test is passed. Upon passing, sithis s monthly test requly irement will
revert to quarterly in the months specified above. will
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 retesting(within 30 days of initial monitoring event). Failure to submit suitable test results will constiittu ee
noncompliance with monitoring requirements
7Q10 3 t `' cfs
Permitted Flow 4. MGD IWC Recommended by:
t .q %
Basin & Sub -basin 03070 Z (ykp o Z)
Receiving Stream ktilDalni Sr— (..
County — yaQ� y
Date 40.9/13
QCL PIF Version 9191

vP- c0n1 47z3
Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Chatham Manufacturing, Inc.
NC0005312
Industrial - 100%
Existing
Renewal
Yadkin River
C
030702
Surry
WSRO
G. Nizich
2/3/93
C15NE
Request # 7332
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
RECEIVED
N.C. Dept. of EHN
MAR 2 2 1993
Winston-Salem
Regional Office
870
314
450
1390
1.93
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Chatham Manufacturing has decreased production since their last permitting period. The
recommended loading rate will be reduced accordingly.
The facility has had only 1 toxicity test failure in the past 4 years arid 3 Fecal coliform violations in
the past 2 years. No instream monitoring was required in the permit, although TSB had
recommended it.
A model was performed for this facility in 1988 which included Abitibi -Price, Jonesville, and
Elkin WWTP. The model predicted that the effluent guidelines for Chatham Manufacturing would
not violate the D.O. standard. Because the facility has decreased production, the newly
recommended guidelines will also protect the D.O. standard (no new model was performed). All
limitations are subject to change when the Yadkin River Basin management plan is in place.
Sp,e�ial Schedule Requirements and additional comments from Reviewers: dc'fr.o.sr-
; l / s 7 C/4 r .�o P to 7 1,i1 y 4? -, ` 5 .�.-/ c� �/di•rp l 7- fO/s�%.�, erAzire-sil,<// '�'rrs���r /74) /?,4 fia• -h
/7d/ o �'f��� /py€ %6' / s" r .�-/?-",r
/ e / �. � ��!i� r (A S/ � d� � � Asses Lv/Ir'r/�'7,'. ' � : p*-,
fPs� l� /C'srti' r', r ' ��/.�►�- . ya/ ry �f �C41- 4'c,V-/gIYS'Gij /r
Date: 3/11/13
Recommended by: df i.uos
Reviewed by
Instream Assessment:
9'1 Regional Supervisor:
Permits & Engineering:
RETURN TO TECHNICAL SERVICES BY:
Date: ala
Date:
Date:
APR 1 ; 1993
* Fits re, Cow Su,4.4,4 s 17¢0. pitiLyi., Wr cuibi+5 (€?)0 FEDEg4C C 1 T Rroi•I 15 A ¢EC,a‘„t3R-1'lo J
?NL ; tF FICIL-(TY 0'7 WET tMIT AN4 IS fits5rN4 - D. 407 I{dWe [o,c.u6-Ag>

2
Type of Toxicity Test:
Existing Limit:
Recommended Limit:
Monitoring Schedule:
Ejxis�t�in
BObS(% y)! 4
TOXICS/METALS/CONVENTIONAL PARAMETERS
Chronic Quarterly
Chronic Qtrly P/F at 1.9%
Chronic Qtrly P/F at 1.9%
Feb, May, Aug, Nov
/
rri C' Monthly Avg
(1 876
TSS (#/day): A 2165
pH (SU): Sii6til1�"
COD (m : 717‘13383
Chronium (#/day): 12.5
Sulfide (#/day): 24
Phenol (#/day): 12.5
Fecal coli (#/100m1): 200
1
Recommended Limits
]aODS #//day) 1t D m 1 Cf
TSS (#/day):
pH (SU):
COD (i):,
Chromium (#/day):
Sulfides (µgz/1):
Phenol (#/day):
Fecal coli (#/100ml):
**
Monthly Avg
815
2050
12430
11.8
11.8
200
Limits Changes Due To:
Other (onsite toxicity study, interaction, etc.)
** Limit based on federal criterion
Chatham Manuf. will not be able to meet this
limit based on current information. The past year
average for sulfide has been 388 µgl.
Daily Max
1711
4306
6-9
26766
24
48
24 '
400
Daily Max
1605 EL
4075 EL
6-9
24861 EL
23.5 (7o4-4L) EL
104 µp/1 WQ
23.5 EL
400
Parameters) Affected
Change in production level: all
-parameters are affected.
The federal criterion for sulfide is
2 µg/1. The allowable level
listed above is based on that
criterion. The production effluent
guideline for sulfide would be
23.5#/day monthly avg and 47
#/day daily max.
_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 limitations for additional
dischargers within this portion of the watershed.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: at least 100 ft upstream
Downstream Location: at least 300 ft downstream (and before the Jonesville Crk tributary)
Parameters: temperature, D.O., conductivity, BOD5
Special instream monitoring locations or monitoring frequencis:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility demonstrated ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes l/
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations: ,�
�' c/%iif 4 %1ii
jar rr 6/�Y1. flir//1ii'‘ / -,> e"."--
If no, why not?
Special Instructions or Conditions
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.

Facility Name Cf1F-T M MANu FA ct-IA iJg Permit # Ajcor o 531 Z Pipe #
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ccriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay
Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration al which there may be no observable inhibition of reproduction or significant mortality
is 1.9 % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
quarterly monitoring using this procedure to establish compliance with the permit condition. The first test will be
performed after thirty days from the effective date of this permit during the months of
�E N1,AY, ►� is Plod . Effluent sampling for this testing shall be performed at the NPDES
permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 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 dosefresponse 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 TY--ision of
Environmental Management indicate potential impacts to the receiving stream, this permit ma•, oe 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 arpropriate environmental controls, shall constitute an invalid test any' :will require irn-n ediat;.
retesting(witnin 30 days of initial monitoring event). Failure to submit suitable test results will constitute
noncompliance with monitoring requirements.
7Q10 314 cfs
Permitted Flow 4.0 MGD
IWC 1.95 %
Basin & Sub -basin 030702- 041702)
Receiving Stream YgnYJN give/4-
County SuRAI
Recommended by:
Dane 3( ti /q3
QCL P/F Version 9/91

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WHOLE Ei•PLUEIStIXICTTY TESTING O)SELF-MONITORING SUMMARY) Fri. Feb 12, 1993
PA411.ITV REQUIREMENT YEAR JAN I•TIl MAR APR MAY )L)N IIJI. AI;G SEP (Cl
CHARLOTTE FIRE 'l1A W ING ACADEMY PERM AC MONIT:24 1IR I'll ID EPIS {GRAII) 89
NC0060453/002 Begin:02101/93 Prequcncy:5OWD/A NonComp. 90
County:MECiCLENBURG Region: MRO Subbasin: CTB34 91
PF:.-- Special 92
7Q10: 0.0 IWC(%):100 Order. 93
CHATHAM MANUFACTURING PERM CFIR LIM:1.9%
NC0005312 Begin:06/01/88 Frequency: Q P/F FF.R MAY AUG NOV NeatComp:
Coumy:SURRY Region: WSRO Subbasin: VAD02
PP: 4.00 Special
7010: 314.00 IWC(%): 1.94 Orden
CHF_RRYVILLE WWTP PERM CHR LIM: 34%
NC0044440 Begin:08/0189 Frequency: Q P/F d MAR JUN SEP DEC NonComp:
County: GASTON Region: MRO Subbasin: CT1335
PF: 20000 Special
7Q10: 0.95 I W C(%): 76.51 Order:
CITGO PETROLEUM 8001 PERM:48 HR AC MONIT EPIS (GRAB)
NC0021954/001 Begin:05/01/90 Froqu ncy: 5 OWD NonComp:
County:JOHNSTON Region: RRO Subbasin: NEU02
PF: VARIAB Special
7Q10: 0.00 IWC(%): 100.00 Order:
93
90 FAIL
91 NR
92 ...
93
93
CITGO PETROLEUM 0002 PERM:48 HR AC MONIT EPIS (GRAB) 89
NC0021954/002 Begin:05/01/90 Frequency. SOWD NonComp: 90
County:JOHNSTON Region: RRO Subbuin: NEU02 91
PF: VARIAi3 Special 92
7Q10: 0.0 IWC(%): 100 Order. 93
CTTGO-PAW CRK BULK TERMINAL PERM:48 HR AC MONIT EPIS (GRAB)
NC0021962 Begin:08/01/89 Frequency: 5 OWD NonComp:
County:MECKLENRURG Region: MRO Subbasin: CTB34 91 -.. .-. --. ... -- NONE'
PF: NA Special 92
7Q10: 0.0 IWC(%):NA Order. 93
LATE PASS
PASS
PASS
PASS
PASS PASS
PASS FAIL
PASS
66.2-
<5'
FAIL
PASS
PASS
PASS
PASS.FAIL
LATE
FAIL
FAIL
PASS
28.5.36. 90'
>90'
>100'
FAIL
PASS -•- .-. PASS
PASS -.. --. NR
PASS --. PASS
PASS --- ... PASS
FAIL PASS •-. FAIL
FAIL PASS -- FAIL
NR PASS - •.. PASS
FAIL PASS -.- PASS
>90- -90
NONE' NONE' 2NONE-
CLAREMONT NORTH WWTP PERM CHR LIM:13% 89 --- •. -• ... ... ... ...
NC0032662 Begim:07/01/90 Frcquenry. Q P/F d JAN APR JUL OCT NmComp: 90 FAIL FAIL PASS PASS --- --- PASS --- FAIL PASS
County:CATAWBA Region: MRO Subbasin: CT1132 91 PASS --- PASS ••- FAIL NR MR FAIL NR
PF:0.10 Special 92 PASS --- PASS ••• ••• FAIL PASS FAIL PASS
7Q10: 1.00 IWC(%):I3.40 Orden 93
CLAREMONTSOU171 WWTP PERM CHR LIM:61% 89 •-• •-- •-- NONE NONE NONE •-• LATE PASS
NC0026549 lIegi n:07/Ol/90 Frequency: Q P/P d JAN APR JUL OCT NonComp: 90 PASS -- PASS •. -- PASS .- PASS ---
County:CATAWBA Region:MRO Subbas in: CTB32 91 PASS -- --- PASS --- FAIL 1419 NA PASS --
PF:0.10 Special 92 FAIL FAIL FAIL PASS -••
--- PASS ._. ... PASS _..
7Q10: 0.10 TWC(%):60.78 Order 93
CLAREMONT. CITY OP -MC LIN CREEK WWT PERM CHR LIM:9% (GRAB)
NC0081370 Begin:04'05/92 Frequency: Q PIP d JAN APR JUL OCT NanComp:SINGU)
County:CATAWBA Region: MRO Subbasin: CTT332
PP: 0.3 Special
7Q10: 5 IWC(%): 9.0 Order.
CLAYTON WWTP PERM CHR LIM:92%
NC0025453 Bcgin:08/01/87 Frequency: Q P/F MAR JUN SEP DEC NonComp:
County:JOFINSTON Region: RRO Subbasin: NEU02
PF: 1.2 Special
7Q10:0.20 1WC(%):92.08 Order.
93
93
NR
--- FAIL --- FAIL -•- bt ••. --- FAIL
--- NR -•• NR PASS PASS PASS FAIL --- N3
FAIL NR --. PASS -- PASS -•. --- PASS
PASS •-- FAIL PASS --. PASS --- PASS
0 2 conaccutive failures = significant noncompliance Y the 1989 Data Available
LEGEND:
PERM = Permit Requirement LET = Administrative Letter -Target Frequency = Monitoring frequency: Q- Quarterly; M- Monthly; 11M. aimcatthly; SA- Semiannually; A- Annually; OWD- Only when discharging; D. Discontinued monitoring requirement; IS. Conducting independent study
Bcein = First month reauired 7Q10 = Receiving stream low flow criterion (cfs) 6 = quarterly monitoring increases to mrrnldy upon single failure Months that nesting must occur • ex. JAN,APR,JU LOCI' NonCornp = Current Compliance Requirement
Ti' =Permitted flow (MGD) TWC% = Instrcarn waste concentration P/F = Pass/Fail chronic test AC = Acute CNR = Chronic
Data Notation: f - Fathead Minnow: • - Ccriodanhnis sv : my - Mvsid shrimp: ChV - Chronic value; P - Mortality of stated vercentaec at blithest concentration: at . Performed by DiiM Aa Tox Grouo: W - Bad lest
Reporting Notation: —• = Data not required; NR - Not reported; ( ) - Beginning of Quarter Facility Activity Status: I - Inactive. N - Newly Issucd(To construct): II - Active but not discharging SIG = ORC signature needed
I!

MODEL RESULTS
Discharger : CHATHAM MFG CO. - ELKIN
Receiving Stream : YADKIN RIVER
SUMMER
QEFF(CHATHAM)=4.0 MGD
BOD5=24.4MG/L / gG A*/pq4(
The End D.O. is 7.38 mg/1.
The End CBOD is 9.71 mg/1.
The End NBOD is 0.88 mg/l.
Segment 1
Reach 1
Reach 2
Reach 3
Reach 4
Reach 5
Reach 6
Segment 2
Reach 1
Reach 2
Reach 3
Reach 4
Segment 3
Reach 1
Segment 4
Reach 1
Reach 2
Reach 3
Reach 4
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
6.46 11.10 6
wr i 2070.00 0.00 0.00
0.00 0.00 0.00
0.00 0.00 0.00
0.00 0.00 0.00
0.00 0.00 0.00
0.00 0.00 0.00
6.44 4.40 4
0.00 0.00 0.00
0.00 0.00 0.00
0.00 0.00 0.00
(4IA-114M( -r + 73.20 4.50 0.00
6.44 0.24 1
- .: '45.00 90.00
6.43 0.00 1
45.00 90.00
0.00 0.00
0.00 0.00
0.00 0.00
1.60000
0.00000
0.00000
0.00000
0.00000
0.0
0.0
0.0
0.0
4.0
0.00 0.30500
0.00
0.00
0.00
0.00
0.90000
0.00000
0.00000
0.00000

n1 6 : iN15 549wS jOPrr gagib, p•0. is
P 'P eVen1 IF Ci-W- Aot 15 Gn1 - SUMMER 1 TN
t'i t t' N toiv �r5 AT Pe 1,ttT7ED QEFF (CHATHAM) =0.4 MGD ( io Dcsr4N1)
';31,P5 LoAT4,0q . B0D5=244 MG/L Fw14
MODEL RESULTS
Discharger : CHATHAM MFG CO. - ELKIN
Receiving Stream : YADKIN RIVER
The End D.O. is 7.37 mg/1.
The End CBOD is 9.81 mg/l.
The End NBOD is 0.85 mg/1.
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/1) (mg/1) (mgd)
Segment 1 6.46 11.10 6
Reach 1 2070.00 0.00 0.00 1.60000
Reach 2 0.00 0.00 0.00 0.00000
Reach 3 0.00 0.00 0.00 0.00000
Reach 4 0.00 0.00 0.00 0.00000
Reach 5 0.00 0.00 0.00 0.00000
Reach 6 0.00 0.00 0.00 0.00000
Segment 2 6.45 1.30 1
Reach 1 0.00 0.00 0.00 0.00000
Reach 2 0.00 0.00 0.00 0.00000
Reach 3 0.00 0.00 0.00 0.00000
Reach 4 ��t�rrlkM -� 732.00 4.50 0.00 0.40000
Segment 3 6.44 0.24 1
Reach 1 45.00 90.00 0.00 0.30500
Segment 4 6.53 0.00 1
Reach 1 45.00 90.00 0.00 0.90000
Reach 2 0.00 0.00 0.00 0.00000
Reach 3 0.00 0.00 0.00 0.00000
Reach 4 0.00 0.00 0.00 0.00000