NC0021211_WASTELOAD ALLOCATION_19930312

NPDES DOCUWEMT SCANNINS COVER SHEET
NPDES Permit: NC0021211
Graham WWTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
201 Facilities Plan
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date: March 12, 1993
This document is printed oa reuse paper-ignore any
content on the reverse amide

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO021211 Modeler Date Rec. #
City of Grahams B s g z o q q
PERMITTEE NAME: tY
l
FACILITY NAME: City of Graham WWTP Drainage Area(mi Avg. Streamflow (cfs):
Facility Status: Existing 7Q10 (cfs) 94 Winter 7Q10 (cfs) SS 30Q2 (cfs)
Permit Status: Renewal
Toxicity Limits: IWC % Acute hronic
Major J Minor Instream Monitoring: ^ n I/,/
Pipe No.: 001 Parameters 9,P,04 /V�/3
Design Capacity: 3.5 MGD Upstream G14,10, ��' Location
Domestic (% of Flow): 82 % Downstream A�W&W Location of s 2/✓`�t�+«
Industrial (% of Flow): 18 %** _
Recommended Limitc' Moatbly Average _
Comments: I Summer Winter
**Based on desi n flow divided by SIU flow as reported b applicant, Wasteflow(MGD): 3.5 3.5
@ P LaRP BOD5(mg/1): 12.0 24.0
`* �lnolicant wants to relocate discharge to the Haw River. Limits too NH3N(mgA): 4.0 8.0
stringent at present discharge location. DO(mgp): 5.0 5.0
TSS (mg/1): 30.0 30.0
RECEIVING STREAM:the Haw River j
Fecal Col. (/l00 ml): 200.0 200.0
pH(Sin: 6.0-9.0 6.0-9.0
Class: C-NSW Temperature(°C): monitor monitor
TP(mg/1): 2.0 2.0
Sub-Basin: 03-06-02 TN(mgA): monitor monitor
Residual Chlorine(µg/1): monitor monitor
Reference USGS Quad: C 21 SE (please attach) Pollutant Analysis: monitor monitor
County: Alamance Chronic Toxicity: P/F @ 14% P/F @ 14%
Regional Office: Winston-Salem Regional Office -Chromium (µgft monitor monitor
Previous Exp. Date: 1/31/93 Treatment Plant Class: IV -Cadmium (Itg/1): : 4.2* 4.2*
Copper(µg/l): monitor monitor
Classification changes within three miles: Nickel(µgft 88* 88*
-Cyanide(µgp): 10.4* 10.4*
No chanee. Zinc(1tg/l): monitor monitor
Mercury(µg/1): monitor monitor
*DAILY MAXIMUM
Requested by: Charles Lowe a Date: 8/3/92
Prepared by: �.�� -� gqL/,pyrf!yLE`ti Date: 9�C/✓? Comments:
Reviewed by: rCl/L i Date: ImI ff(�( }}II IhI hh� IhIIII ll
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S LUDGE_RECIRCU_LATI ON
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MAIN FLOW
CLAR. AERATION ----- SLUDGE FLOW
— — •— WASTE SLUDGE
P PUMPS
CLAR. NITRIFICATION
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FLOW DIAGRAM
FIG. 1 - 1

;Z
FACT SHEET FOR WASTELOAD ALLOCATION ECEIVED
"Request# Dept. of EHNR
-30�•
Facility Name: City of Graham/Graham WWTP FEB 8 1993
NPDES No.: NCO021211
Type of Waste: Domestic - 82%/Industrial - 18% Winston-Salem
Facility Status: Existing
Permit Status: Renewal Regional Office
Receiving Stream: Haw River
Stream Classification: C-NSW
Subbasin: 030602
County: Alamance Stream Characteristic:
Regional Office: Winston-Salem USGS # 02.0965.1875
Requestor: Lowe Date: 1988
Date of Request: 8/5/92 Drainage Area (mi2): 614
Topo Quad: C21SE Summer 7Q10 (cfs): 34
Winter 7Q10 (cfs): 85
Average Flow (cfs): 553
IWC (%): 14
Wasteload Allocation Summary
(approach taken,correspondence with region, EPA, etc.)
Facility has relocated to the Haw River. In the last WLA limits were given for several metals
taking into account interaction between this discharge and the East Burlington WWTP. As a result-
the metals limits contained in this permit are more stringent than those in the East Burlington _
permit. For reasons of equitably and consistency, all interacting discharges on the Haw River near
the Graham discharge should be reallocated for allowable effluent concentrations of metals. Sinc`e,'
the two Burlington permits have recently been completed, this realloation will take place before the
1996 basinwide management plan for the Cape Fear River basin. These facilities should be
notified that limits for metals will probably be more stringent in the next permit period. The fecal
limit should be changed to 200/100 ml.
Special Schedule Requirements and additional comments from Reviewers:
Recommended by: X ,DC- a Date: Z `�
Reviewed by
Instream Assessment: " Date:
Regional Supervisor:% Date:-Z- 2%�
Permits &Engineering: Date: 3
RETURN TO TECHNICAL SERVICES BY: MAR 17 1993

2
PARAMETERS
Existing Limits: Monthly Average
Summer Winter
Wastellow(MGD): 3.5 3.5
BODS(mg/1): 12.0 24.0
NH3N(mg/1): 4.0 8.0
DO(mg/1): 5.0 5.0
TSS (mg/1): 30.0 30.0
Fecal Col. (/100 ml): 1000.0 1000.0
pH(S[n: 6.0-9.0 6.0-9.0
Temperature(°C): monitor monitor
TP (mg/1): 2.0 2.0
TN(mg/I): monitor monitor
Residual Chlorine(µg/l): monitor monitor
Pollutant Analysis: monitor monitor
Chronic Toxicity: P/F @ 14% P/F @ 14%
Lead(µg/1): 25 25
Chromium (µg/l): monitor monitor
Cadmium (µg/l): 4.2 4.2
Copper(µg/1): monitor monitor
Nickel(µg/1): 50 50
Cyanide(µg/1): 10.4 10.4
Zinc (µg/1): monitor monitor
RECOMMENDED LIMITS ARE ON NEXT PAGE.

3
Recommended Limits: Monthly Average
Summer Winter WQ/EL
Wasteflow(MGD): 3.5 3.5
BOD5(mg/1): 12.0 24.0 WQ
NH3N(mg/1): 4.0 8.0 WQ
DO(mg/I): 5.0 5.0 WQ
TSS (mg/1): 30.0 30.0 EL
Fecal Col. (1100 ml): 200.0 200.0 WQ
pH(Sin: 6.0-9.0 6.0-9.0 WQ
Temperature(°C): monitor monitor
TP(mgp): 2.0 2.0 WQ
TN(mg/1): monitor monitor
Residual Chlorine(µg/I): monitor monitor
Pollutant Analysis: monitor monitor
Chronic Toxicity: P/F @ 14% P/F @ 14%
Lead(µg/l): 25* 25*
Chromium (µg/l): monitor monitor
Cadmium (ltg/l): 4.2* 4.2*
Copper(µg/l): monitor monitor
Nickel(lig/l): 88* 88*
Cyanide(µg/l): 10.4* 10.4*
Zinc(µg/1): monitor monitor
Mercury(1g/1): monitor monitor
*DAILY MAXIMUM
Limits Changes Due To: Parameter(s) Affected
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
Other(onsite toxicity study,interaction,etc.)
Instream data
New regulations/standards/procedures x Fecal, Nickel
New facility information (effluent data)
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.

4
INSTREAM MONITORING REQUIREMENTS
Upstream Location: Haw River at Highway 54
Downstream Location: Haw River at SR 2158 above the dam
Parameters: Temperature,Fecal, Conductivity, Dissolved Oxygen, BODS, NH3
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION&SPECIAL CONDITIONS
AAd quacy 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:
n�u.�:�e-,.w.< .-►n�.� �7Grna.►.o•... �wu2 tcc.ri1.4.eJ �s
R..,xia�ec� D i"L
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(Y or N) If yes, explain with attachments.
Y, 7rST-FVfZ1q „/arm, A/or&5 0e/ PX/c4.✓Ts

Facility Name 1476 Q 14 Permit# la! r 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 Chronic Bioassay
Procedure - Revised *September 1989) or subsequent versions.
The egluent concentration at which there may be no observable inhibition of reproduction or significant mortality
is JT % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
quarwr monitoring using this procedure to establish compliance with the permit condition. The first test will be
perfo after thin F days ,rom the effective date of this permit during the months of
/�/X,f, �/bo" JC d, GI�,G Effluent sampling for this testing shall be performed at the NPDES
permitted final eff e i 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 dose/msponse 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.
7Q10 34 cfs
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11/18/92 ver 3.1 T O X I C S R E V I E W
Facility: GRAHAM
NPDES Permit No.: NC0021211
Status (E, P, or M): E
Permitted Flow: 3.5 mgd
Actual Average Flow: 1.7 mgd
Subbasin: '030602
Receiving Stream: HAW RIVER ---------PRETREATMENT DATA-------------I----EFLLUENT DATA----
Stream Classification: C-NSW I ACTUAL PERMITTEDI
7010: 34.0 cfs I Ind. Intl. ♦ I FREQUENCY I
INC: 13.76 I Domestic PERMITTED Domestic 1 OBSERVED of Chronicl
Stn'd / Bkq Removal Domestic Act.Ind. Total Industrial Total I Effluent Criteria I
Pollutant AL Conc. Ef£. Load Load Load Lead Load I Cone. Violatlonal
(ug/1) (ug/1) I 4 (t/d) (1/d) (i/d) (♦/d) (i/d) I (ug/1) (Ivio/4sam) l
--------- -- -------- -------- I -------- -------- -------- -------- --------- -------- I -------- --------- 1
Cadmium S 2.0 954 0.0 0.1 0.09 0.1 0.080 1 4.1 1
Chromium S 50.0 944 0.4 1.1 1.53 4.7 5.120 I 50.4 I I
Copper AL 7.0 I 91% 0.5 2.0 2.52 2.0 2.520 I 39.3 I N
Nickel S 88.0 I 944 0.2 0.8 0.9B 2.6 2.730 1 48.3 I P
Lead S 25.0 I 954 0.4 0.6 0.96 1.9 2.310 1 24.9 1 U
Zinc AL 50.0 I 91% 1.4 2.1 3.46 4.0 5.330 1 333.3 I T
Cyanide S 5.0 I 82% 0.3 0.0 0.35 0.3 0.590 I
Mercury S 0.012 I 68% 0.0 0.1 0.06 0.0 0.004 1 I S
Silver AL 0.06 1 96% 0.0 0.8 0.86 0.0 0.040 I I E
Selenium 5 5.00 1 0i I I C
Arsenic S 50.00 1 73% 0.0 0.1 0.14 0.0 0.020 I T
Phenols S - NA OR I I I
NH3-N C I 04 I 1 0
T.R.Chlor.AL 17.0 1 0% I 1 N
I I I
I I I
I I I
--------------- ALLOWABLE PRDCT'D PRDCT'D PRDCT'D ---------MONITOR/LIMIT--------- I--ADTN'L RECMMDTN'S-- I
I Effluent Effluent Effluent Instream I Recomm'd I
I Cone. using using Conc. Based on Based on Based on I FREQUENCY INSTREAM I
I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. I
Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd 7 1
I (}/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data OBSERVED (YES/NO)
--------- -- I --------- -------- --------- -------- -------- -------- ------- ---------I --------- -------- 1
Cadmium S I 7.90 14.535. 0.325 0.2B0 0.56 Monitor Monitor Limit I NCAC NO 1 A
�1
Chromium S I 164.63 363.364 6.434 21.530 6.94 Monitor Monitor Limit I NCAC NO I N
Copper AL I 15.37 �50.871 15.895 15.895 5.41 Monitor Monitor Monitor I Monthly YES I A
Nickel S 1 289.75 639.521 4.108 11.480 6.65 Monitor Monitor NCAC NO I L
Lead S I 98.78 181.682 3.354 8.095 3.43 Monitor Monitor Limit I NCAC NO 1 Y
Zinc AL 1 109.75 363.364 21.831 33.620 45.86 Monitor Monitor Monitor I Monthly YES I S
Cyanide S I 5.49 36.336 4.376 7.443 0.00 Limit Limit I I I
Mercury S I 0.01 � 0.087 � 1.447 0.099 0.00 Limit Limit I - I S
Silver AL I 0.30 0.936 2.411 0.112 0.00 Monitor Monitor I I
Selenium S I 0.99 1 36.336 0.000 0.000 0.00 I I R
Arsenic S I 36.50 ! 363.364 2.630 0.378 0.00 I - I E
Phenols S I 0.000 0.000 0.000 0.00 I I S
NH3-N C I 0.000 0.00 I I U
T.R.Chlor.AL I 123.544 0.00 I I L
v I T
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9'V 039y
NPDES PRETREATMENT INFORMATION REQUEST FORM
FACILITY NAME: 7y of raA1.4-A NPDES NO. NC00
u REQUESTER: C�/�
0AL Li:�' to ✓� DATE: / /�� REGION:
� PERMIT COND11'IONS COVERING PRETREATMENT
d
This faci7i4 has no SIUs and should. not have pretreatment language. ; �Y
y I This facilit}j should and/or is developing a pretreatment program.
include the follaving conditions: U
w_
a €
Program Development
rt Phase I due
d - cap Phase II due
Additional Condit—ions
H j1;y1J� IN11Q)51s�Witty;i� currently .implementing a pretreatmentdpr am.
Please include the following conditions:
Program Implementation
�N Additional Conditions
V) (attached)
SIGNIFICANT INDUSTRIAL USERS' (SIUs) CONTRIBUTIONS
d 5 1 SIU FLOW - TOTAL: Pe
D �4 O 9 MCA
0 6
- OOMPC6ITION: mFxrrT.R; . 0.3G5 0.2lo'F MGD
d m w ' METAL FINISHING: MGD
3 � s /�
p
OTHER: alUry wum a,o er : o MCI)
� i l�es �rndwn�U/e.��, u s�rii, l Id.�� 0, 145 MGD i 1
o q$ ry edtcal was+e- ticiHerc(o O OS M®
+rk r e 0. I MGD
s N ' tenses 0 064 r�H
$ h HF.ADWORKS REVIEW d7
t ,
= i PASS 0
}3 i PARAMETER (THROUGH DAILY LOAD IN LBS/DAY ACTUVj
- Y
}ALLOWABLE DOMESTIC PERMITTED INDUSTRIAL % REMOVAL N
Cd III ,E— 0.0 0.06 0.01415 95
S sl Cr 1H)q .oa 0 .39 4.43 0. 12� 9u
sCul _ 6.413 �.04 0. 691 9/
S , Ni /l.ga 0. 1(o �, 5� 0. 91!
i
S Pb 2.09 0. 38 1 93 0.5
Zn — / .36 3.99 LDIO i y
CN 0.ga o13� o.z� o.oa Sa m
Phenol 0. 116 j
JI .Other U„ O.00�A 0.00A3 O.00�# o.0o134 b,j . o
6.0'f n o 046 ; 5O
o OSb -93
Feiv .hloroP{� e,ne l o.oa
T RECEIVED: 9a/0 9 //,a REVIEWED BY: RETURNED: `t3 /2C5 M 2 i 3
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NPDES PRE'IREATM Wr INFORMATION RD*UEST FC11;1M
;FACILITY NAME: , /(
� : j �y� W NPDES NO. NC00
REQUESTER �p��G� .
i
DATE: 19/ /j REGION:
/9�
ry � w 5 20
PER41T CONDITIONS COVERING PRE,TREATVUM
{ This facility has no SIUs and should not have pretreatment language. ;_ This facility should and/or is developing a pretreatment program. ;
S Please include the follaaing conditions:
Q ' _
' Program Development �
Phase I due
� Phase ZI due
i Additional Conditions i
(attached) i
This facility is currently implementing a pretreatment program, i
Please include the follmmng conditions: ;
' Program Implementation
V1 Additional Conditions
' (attached)
SIQIIFZCANT INDUSTRIAL USERS (SIUs) CONTRIBUTIONS
tn i
SIU FIAW —TGTAL:
� — O.6la rY�
- COmPoSITION: I`
� TEXTTrv; �
µa t, �� L METAL FINISHING: �
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MGD
1 G HEA1MRKS 1 71E
PASS
P THROUGH i
DAILY LOAD IN I.BS/DAY ACTUAL '
Cd ALLMTABIX DOMESTIC PERNIIT ED INDUSTRIAL % REMOVAL ,
i Cr G, O9Q:�- ;
Cu
Ni
i Zn O , S93
CN a, (OI
Phenol G.oa69 '
Other U. 0. 1 R 6
_ A 0. 2.
'
i
RECEIVED: /c7 /3/ 9� REVIEWED BY: gelI �'