NC0024881_Wasteload Allocation_19921022

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO024881
PERMITTEE NAME: City of Reidsville
FACILITY NAME: Reidsville WWI?
Facility Status: Existing
Permit Status: Renewal
Major -1 Minor
Pipe No.: 001
Design Capacity: 7.5 MGD
Domestic (% of Flow): 37 %**
Industrial (% of Flow): 63 %**
Comments:
**per staff report based on avg flow of 3.4 MGD
Special instream monitoring locations or monitoring Gequencies:
Samples should be col ected duet times per week during June, July, August, and September, and once
per week during the remaining monde of the year. *Monitoring for memory should be done at a minim[
of once per quarter.
RECEIVING STREAM: Little Troublesome Creek
Class: C-NSW
Sub -Basin: 03-06-01
Reference USGS Quad: B 20 SW (please attach)
County: Rockingham
Regional Office: Winston-Salem Regional Office
Previous Exp. Date: 8/29/92 Treatment Plant Class: IV
Classification changes within three miles:
Chances to WS-III NSW downstream approximately 4 miles at the
Haw Ri;�-`"ED
ver
j} k t'j
Requested by: Charles Lowe Date'
Prepared by: % L � Date: IVZo 9Y
Reviewed by: ("-,Amato A*7i Dare:
5NC1ri �a`v^ ��w Z�$ IAItN �nD,A �� //7 s q
� !.__'60
waltiZ ��i � 7t/� 41M. J�rIuT� ao 3S
Modeler
Date Rec.
I #
G
t0 z
Drainage Area (mil
)
Avg. Streamflow (cfs):
7Q10 (cfs)
Winter7Q10 (cfs) 30Q2 (cfs)
Toxicity Limits: IWC _10 %
Acute
Instream Monitoring:AT
-
UpsoirMSMGD Location:
Little Troublesome Creek Hwy 29
Business
/h
Downstream LLocation:Little
Troublesomeu Creek SR 2000
ie Par=eterS
a�
Parameters:
Temperature, Fecal. Conductivity, Dissolved oxygen
AT 7.5 MGD
-�pStreftMi
Upstream Location:
Little Troublesome Creek at US Hwy 29
Business
_
r,
Dowostream Location Rl:
Little Troublesome Creek at SR 2600
l/
�m
Downstream Location 62:
Creek at SR 2598
_ Downstream Location #3:
Haw River at
Haw River at Hwy 150
Downsmsm Location i14:
Haw River at SR 2620
parameters:
Temperature, Fecal, Conductivity, Dissolved
oxygen, Mercmy-
Effluent
Characteristics
Monthly
Average Monthly Average
Summer
Winter Summer
Winter
Wasteflow (MGD):
5
5 7.5
7.5
BOD5 (mg/1):
6.0
12.0 5.0
10.0
NH3N (mg/1):
2.0
4.0 2.0
4.0
DO (mg/1):
5.0
5.0 6.0
6.0
TSS (mg4):
30.0
30.0 30.0
30.0
Fecal Col. U100 ml):
200.0
200.0 200.0
200.0
pH (SU):
6.0-9.0
6.0-9.0 6.0-9.0
6.0-9.0
Temperance (°C):
monitor
monitor monitor
monitor
TP (mg/1):
2.0
2.0 2.0
2.0
TN (mg4):
monitor
monitor monitor
monitor
Residual Chlorine (ul;4):
monitor
monitor rrteaiter 11
MQU;
Pollutant Analysis:
monitor
monitor monitor
monitor
Chronic Tox. @ 5 & 7.5
MGD: P/F @90%d (Jan, Apr, Jul, Oct
Chromium (W):
5V
50't
Copper (µg/l):
monitor
monitor
Nickel (µg/1):
50*
50*
Lead (ltg/1):
254-
25*
Zinc (µg/1):
Cyanide(µg/1):
5.0*
monitor
5.0 5,0'0-'
monitor
5.0"
Fluoride (mg/1):
1.8-t
1.8''
MBAS (mg/1):
0.5*
0.541-
Cadmium (µg/1):
2.0#
2.0*
Aluminum (1ig/1):
monitor
monitor
Antimony (ug/1):
monitor
monitor
Chloroform (µg/l):
monitor
monitor
Silver (µg/l):
monitor
monitor
Mercury (µg/1):
0.012
0.012
Manganese (1tg/l):
monitor
monitor
41w MAKOuhtl.

kECEiVED
N.C. Dept. of EHNR
0 C T - 6 1992
FACT SHEET FOR WASTELOAD
ALLOCATION
Winston-Salem
Request#
6976RegionalOffice
Facility Name:
City of Reidsville/Reidsville
W WTP
NPDES No.:
NCO024881
Type of Waste:
Domestic - 37%/Industrial - 63%
Facility Status:
Existing
Permit Status:
Renewal
Receiving Stream:
Little Troublesome Creek
Stream Classification:
C-NSW
Subbasin:
030601
County:
Rockingham
Stream Characteristic:
old WLA
Regional Office:
Winston-Salem
USGS #
Requestor:
Lowe
Date:
1988
Date of Request:
6/9/92
Drainage Area:
5.56 mi
Topo Quad:
B20SW
Summer 7Q10:
0.2 ifs
Winter7Q10:
1.0
Average Flow:
— 5.0 c�-S
30Q2:
1.2 L
7U/G �
98 a
Wasteload Allocation Summary
_.
(approach taken, correspondence with region, EPA, etc.)
Facility has been in non-compliance with their toxicity testing requirement for several years. A
clause should be included in the permit which requires the facility to be in compliance with toxicity
testing requirements before the design flow increases to 7.5 MGD. A review and analysis of the,_
PPA sent by the facility resulted in the recommendation of limits for mercury and fluoride as well
as monitoring for chloroform and antimony. The Pretreatment Unit has been notified about the
mercury problem at this facility. Although there are no obvious sources, an effluent value from
Chace Precision Metals, Inc. was noted to be 1.1 µg/1. Quarterly instream monitoring for mercury
should be requiredG i yypi t`1,
Special Schedule Requirements and additional c mments fi-ojp Reviewers:-44
7 it j ytl�°
CJ Q P_r ( CO.L 1-41 e"'Ys /J
Recommended by: Date: ZZ
u Reviewed by
Instream Assessment. ZI&71 Date:
Regional Supervisor: ';t�_ Date:` —
Permits &
OCT 3 0 1992
RETURN TO TECHNICAL SERVICES BY:
5 rofiZ Gt.S �X� G�uacQ Az_

PARAMETERS
Existine Limits:
Mon. Avg. @ 5 MGD
Mon. Avg. @ 7.5 MGD
Summer
Winter
Summer
Winter
Wastef)ow (MGD):
5.0
5.0
7.5
7.5
BODS (mg/1):
6.0
12.0
5.0
10.0
NH3N (mg/1):
2.0
4.0
2.0
4.0
DO (mg/1):
5.0
5.0
6.0
6.0
TSS (mg/1):
30.0
30.0
30.0
30.0
Fecal Col. (1100 ml):
1000.0
1000.0
1000.0
1000.0
pH (SU):
6.0-9.0
6.0-9.0
6.0-9.0
6.0-9.0
Temperature (°C):
monitor
monitor
monitor
monitor
TP (mg/1):
2.0
2.0
2.0
2.0
TN (mg/1):
monitor
monitor
monitor
monitor
Residual Chlorine (µg/1):
monitor
monitor
monitor
monitor
Pollutant Analysis:
monitor
monitor
monitor
monitor
Chronic Tox. (P/F):
@99% (Jan,AprJul,Oct)
@ 98% (Jan, Apr, Jul, Oct)
Chromium (µg/1):
50
50
Copper (µg/1):
monitor
monitor
Nickel (}tg/1):
50
50
Lead (µg/1):
25
25
Zinc (µg/1):
monitor
monitor
Cyanide (WA):
5.0
5.0
5.0
5.0
Fluoride (mg/1):
1.8
1.8
MBAS (mg/1):
0.5
0.5
Cadmium (1tg/1):
2.0
2.0
Aluminum (µg/1):
monitor
monitor
Manganese (ltg/1):
monitor
monitor
Summer
Winter
Summer
Winter
WQ/EL
Wastetlow (MGD):
5
5
7.5
7.5
BODS (mg/1):
6.0
12.0
5.0
10.0
WQ
NH3N (mgp):
2.0
4.0
2.0
4.0
WQ
DO (mg/1):
5.0
5.0
6.0
6.0
WQ
TSS (mg/1):
30.0
30.0
30.0
30.0
EL
Fecal Col. (/100 ml):
200.0
200.0
200.0
200.0
WQ
pH (SU):
6.0-9.0
6.0-9.0
6.0-9.0
6.0-9.0
WQ
Temperature (°C):
monitor
monitor
monitor
monitor
TP (mg/1):
2.0
2.0
2.0
2.0
WQ
TN (mg/1):
Residual Chlorine (µg/1):
monitor
monitor
monitor
monitor
monitor
e;eaim (1
monitor
mQuiter
vV&- wi t G 102-1 9z
Pollutant Analysis:
monitor
monitor
monitor
monitor
Chronic Tox. @ 5 & 7.5 MGD:
P/F @90%
(Jan, Apr, Jul, Oct)
Chromium (µg/1):
50
50
WQ
Copper (µg/1):
monitor
monitor
Nickel(µgp):
50
50
WQ
Lead (ltg/1):
25
25
WQ
Zinc (µg/1):
monitor
monitor
Cyanide (µg/1):
5.0
5.0
5.0
5.0
WQ
Fluoride (mg/1):
1.8
1.8
WQ
MBAS (mg/1):
0.5
0.5
WQ
Cadmium (µg/1):
2.0
2.0
WQ
Aluminum (µg/1):
monitor
monitor
Antimony (µg/1):
monitor
monitor
Chloroform (µg/1):
monitor
monitor
Silver (µg/1):
monitor
monitor
Mercury (µg/1):
0.012
0.012
WQ
Manganese (µg/1):
monitor
monitor

INSTREAM MONITORING REQUIREMENTS
AT 5 MGD
Upstream Location:
Downstream Location:
Parameters:
AT 7.5 MGD
Upstream Location:
Downstream Location #1:
Downstream Location #2:
Downstream Location #3:
Downstream Location #4:
Parameters:
Little Troublesome Creek at US Hwy 29 Business
Little Troublesome Creek at SR 2600
Temperature, Fecal, Conductivity, Dissolved Oxygen
Little Troublesome Creek at US Hwy 29 Business
Little Troublesome Creek at SR 2600
Little Troublesome Creek at SR 2598
Haw River at Hwy 150
Haw River at SR 2620
Temperature, Fecal, Conductivity, Dissolved Oxygen, Mercury*
Special instream monitoring locations or monitoring frequencies:
Samples should be collected three times per week during June, July, August, and September, and once
per week during the remaining months of the year. *Monitoring for mercury should be done at a minim[
of once per quarter.
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
AAd .quacy of Existing_ Treatment
Has the facility demonstrated tl}a ability to meet the proposed new limits with existing treatment
facilities? Yes No �
If no, which parameters cannot be met? ^Z�tY , < f ti
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?_o G
n�„Ps
Wasteload sent to EPA? (Major) —L (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 I) If yes, explain with attachments.
qL WGA k1MV5� IWOP V15u CG6, C�ViCO of- �i��l� AAJP 4V1,641U of fll l/y,,�rx

.Facility Name
1C&1'05g1i-C'C
Permit # p4gs / 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 effluent concentration at which there may be no observable inhibition of reproduction or significant mortality
is -10—% (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
erl . monitoring using this procedure to establish compliance with the permit condition. The first test will be
perf after trty s from the effective date of this permit diWng the months of
Gut / Effluent sampling for this testing shall be performed at the NPDES
permitiedfirfale uent 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/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.
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 �-O' cfs
Permitted Flow 7-5- MGD
IWC
Basin & Sub -basin G4'� G63oi6o1
Receiving S I"x k
County tt/;'
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/4W

CITY OF REIDSVILLE WWTP - Allowable Waste Concentrations for Toxicants
7Q10=
0.2
Qa=
5
Ow in cfs =
11.625
PARAMETER
FEDERAUSTATE STANDARD
ALLOWABLE EFF. CONC.
ACTUAL EFF. CONC
ACTION
/l
/1
/l
Antimony*
4308
6160.90
130
monitor
Fluoride
1800
1830.97
1440
limit
Chloroform*
470.8
673.29
35.5
monitor
Mercury
0.012
0.01
0.4
limit
*Standard based on human health.
**Re resents action level.
9/12/92

a
09/04/92
ver 3.1
T
0 X I C
S R E V
I E W
Facility:
Reidsville WWTP
'
NPDES Permit No.:
NCO024881
Status (E, P, or M) :
E
Permitted Flow:
5.0 mgd
Actual Average Flow:
3.0 mgd
Subbasin:
1030601
Receiving Stream:
L. Troublesome Creekl--------- PRETREATMENT
DATA --------------
I---- EFLLUENT DATA ----
Stream Classification:
C
I
ACTUAL
PERMITTEDI 1
7010:
0.3 cfs
I
Ind. +
Ind. + I FREQUENCY I
IWC:
96.27
I
Domestic
PERMITTED
Domestic I OBSERVED of Chronicl
Stn'd / Bkg (
Removal Domestic
Act.Ind.
Total
Industrial
Total I Eflluent Criteria I
Pollutant
AL Cone. (
Eff. Load
Load
Load
Load
Load I Cone. Violationsl
(ug/1) (ug/1) (
% (#/d)
(#/d)
(#/d)
(#/d)
(#/d) I (ug/1) (#vio/#sam)I
--------- --
Cadmium S
---------------- I
2.0 I
-------- --------
31% 0.0
--------
0.3 J
--------
0.36
---------
0.1
- -- I -------- I ----- ---------
0.071 I I
Chromium S
50.0 I
'/ 71$ 0.1
0.41
0.52
4.3/
4.360 I I I
J
5.680 ( N
Copper AL
7.0 I
27% 1.3
1.4
/
2.79
4.3.
I
Nickel S
88.0 l
43% 0.5
0.8
1.22
1.8
2.230 1 I P
Lead S
25.0 I
45% 0.4
0.4 J
0.82
0.5
0.920 I I U
Zinc AL
50.0 I
209, 2.4
3.4J
5.80
5.5
7.970 l I T
Cyanide S
5.0 I
J 99%100 0.0
0.1,/
0.13
0.0
0.030 I I
Mercury S
0.012 I
40% j0.0\,
0.0j
0.01
I I S
"'0.2fr
Silver AL
0.06 I
0.0
0.21
0.1
0.304 1 I E
Selenium S
5.00 I
0%
I I C
Arsenic S
50.00 I
04;
0.0
1.4J
1.44
I I T
Phenols S
NA I
0%
I I I
NH3-N C
10ps
0
T.R.Chlor.AL
17.0 I
1
0$
I I N
1 I
I I
I
I
---------------
ALLOWABLE PRDCT'D
PRDCT'D
PRDCT'D
I I
--------- MONITOR/LIMIT --------- 1--ADTN'L RECMMDTN'S-- I
I
Effluent Effluent
Effluent
Instream
I Recomm'd I
Cone, using
using
Cone.
Based on
Based on Based on I FREQUENCY INSTREAM I
I Allowable
CHRONIC ACTUAL
PERMIT
using
ACTUAL
PERMITTED OBSERVED I Eff. Mon. Monitor.
Pollutant
I Load
Criteria Influent
Influent
OBSERVED
Influent
Influent Effluent I based on Recomm'd ? I
I (#/d)
(ug/1) (ug/1)
(ug/1)
(ug/1)
Loading
Loading Data I OBSERVED (YES/NO) I
-----------------I----------------- I
--------- --
Cadmium S
I---------
I 0.08
-----------------
2.077 9.779
--------
1.928
--------
0.00
--------
Limit
Limit I (
A
Chromium S
( 4.63
51.935 5.935
50.053
0.00
Limit
Limit I I
N
Copper AL
I 0.26
7.271 80.539
164.141
0.00
Monitor
Monitor I I
A
Nickel S
I 4.15
91.406 27.551
50.318
0.00
Limit
Limit I I
L
Lead S
I 1.22
25.968 17.875
20.031
0.00
Limit
Limit ( I
Y
Zinc AL
I 1.68
51.935 183.523
252.403
0.00
Monitor
Monitor I I
S
Cyanide S
I 13.44
5.194 0.052
0.012
0.00
I (
I
_� 7
I
S
Mercury S
I 0.00
0.012 0.352
0.000
0.00
Limit
•/ I
Silver AL
I 0.00
0.062 2.796
3.975
0.00
Monitor
Monitor/ I I
Selenium S
I 0.13
5.194 0.000
0.000
0.00
( I
R
Arsenic S
I 1.34
51.935 56.925
0.000
0.00
Limit
- 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
17.658
0.00
I I
L
qi
C-7.
--
/ .,el�lvc
M 910a/
S-„j
nJJwQ �c, 4 � Ar 14
�
As
al o"i d tJ t c- i,,." at� J e we l it k C,
I e .m-
l c w-e tc- L. ve cal
-0,1 a

NPDES PRETREATMENT INFORMATION REQUEST FORM
FACILITY NAME; ��JSI% �G✓�� NPDES NO. NCOOZI g l
REQUESTER I. DATE: REGION:
REGION: l✓i Idt�� 5��
i
This facility has no SIUs and should not have pretreatment language.
— This facility should and/or is developing a pretreatment program.
Please include the following conditions:
i
RECEIVED— Program Development
Phase I due
Phase II due _/ /
Additional Conditions
(attached)
— This facility is currently implementing a pretr t program.
TECHNICAL SOPWMK de the following conditions:
Program Implementation
Additional Conditions
(attached)
RIAL USERS' i
SIU FLOW - TOTAL:
ress
ARAMETER ;THROUGH DAILY LOAD IN LBS/DAY ACTUAL
om� amS= P 6T INDUSTRIAL % REMOVAL
i
2
r
Pb �
✓✓S. X56
Phenoi
Othe
i
^ .'00
a.1�3
RECEIVED: / /_ REVIEWED BY: 4JIv� K REIURNED: i
i