NC0026689_WASTELOAD ALLOCATION_19891013

NPDES DOCUWE T SCANNING COVER SHEET
NPDES Permit: NCO026689
Denton WWTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtQ
Permit Modification
Complete File - Historical
Correspondence
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date: October 13, 1989
grjx" docnmelnt Im pr13Mteci olm X-IBnee perpex - more any
csoatent on the re-wer,we Bide

PERMIT NO.: NCOO o2� 6 F 5�
NPDES WASTE LOAD ALLOCATIONPRA
�Moj�deler�D�ate
Rec.
FACILITY NAME: ryh -of D•P,�llw `i W A) Tp �t u �S� D.53
Facility Status: PROPOSM
(circle one) �---�
P
ermit Status. ' AL MODMICATM UNPERMUTED NEW
(circle one)
Major
Pipe No: 2
Design .Capacity (MGD): ©. 3 O O
Domestic N of Flow): 25
Industrial (x of Flow):
Comments:
A C h
RECEIVING STREAM: � 7— /C
Class: 01
Sub -Basin: 05 ~ 0 9— 08
Reference USGS Quad: /V (please attach)
County: avid�S©!�
Regional Office: A• Fa Mo . Ra Wa wi WS
(circle 00e)
Requested By: 45004C - 6a."K4 ,Date. 71311y%
Prepared By: Date: ►o ►a g�
Reviewed By; Date: 0
o
Drainage Area (mi 2 ).6-52 Avg. Streamflow (cfs): 1,50
7Q10 (cfs) _ Winter 7Q10 (cfs) 30Q2 (cfs)
Toxicity Limits: IWC--1_1._ % (circle one) Acute / Chronic
Instream Monitoring: �y
Parameters . hem e1milld (16kidicfi
4__ Vt (�l.ej�t`7jVyl�
Upstream Location .a&ye di5diaAy M//4
Downstream Location22, 5y)u '�j �u&u)r1. k,�,@ a
FecorV•w4Xfj Q,g'!,✓PW Corp-",
C-InLl 7: &Ch151eI- a 1. Pka3pt`orv_,,
Effluent
Characteristics
60v
w i K,
�UVII� v j i
BOD11(mg/1)
G
o4
NHf N (mg/1)
\3
D.O. (mg/1)
b
TSS (mg/1)
30
F. Col. (/100m1)
�80
c�60
pH (SU)
- �_cfm
26J►n Um (v i1)
D
kfiC.kz,e(
4v v 3605) 7755, , A/ N3/v .1 - eca1 Co lrvw
Commenis:
¢Wftwt uAd iceo c)1�5H qe rt/Ae'y- A -A- 'A0J7-Fe PrFwro
fttw�Sr;
l/7L!Uhc�ti1tA.4D

EIECEI` n
N.G. 0vpt. �J'RCD
0 C T ?_ 1989
Winston-Salem Request No.: 5365
------------------- WASTELOAD AL T %f 8ROVAL FORM
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad:
Town of Denton WWTP
NCO026689
Ind/Dom
Existing,
UT Lick Creek
C
030708
Davidson
WSRO
Rosanne Barona
7/31/89
E18NE
-------------------- RECOMMENDED EFFLUEN
Summer
Wasteflow (mgd): 0.30
BOD5 (mg/1) : 19
NH3N (mg/1) : 6
DO (mg/1) : 6
TSS (mg/1) : 30
Fecal Coliform (/100m): 200
pH (su) : 6-9
Cadmium (ug/1) :
Nickel (ug/1) :
Lead (ug/1) :
Toxicity Testing Req.: See attached Chronic
---------------------------- MONITORING
Upstream (YIN): Y Location:
Downstream (YIN): Y Location:
OCT � 0 '989
PERMITS & rP'�iNFtr:!e
Drainageto:
a: 0.570 sq mi
Summer 0.00 cfs
Winter 7Q10: 0.00 cfs
Average flow: 0.50 cfs
30Q2: 0.00 cfs
above
Dal Max
SR 2
1z1V .%0%
----------------------------- COMMENTS -------- ---------------------------
Recommend instream monitoring for D.O., Temperature, Conductivity, and
Fecal Coliform. Recommend effluent monitoring for Chromium, Copper, & Zinc
T
LIMITS
Winter
0.30
24
13
6
30
200
6-9
2.00
88.00
25.00
Toxicity Testing Requirement
discharge point 7
miles below discharge at
%. ,� �% .A
Above are the existing limits except for Fecal
above
Dal Max
SR 2
1z1V .%0%
----------------------------- COMMENTS -------- ---------------------------
Recommend instream monitoring for D.O., Temperature, Conductivity, and
Fecal Coliform. Recommend effluent monitoring for Chromium, Copper, & Zinc
T
LIMITS
Winter
0.30
24
13
6
30
200
6-9
2.00
88.00
25.00
Toxicity Testing Requirement
discharge point 7
miles below discharge at
%. ,� �% .A
Above are the existing limits except for Fecal
Coliform and metal limits.
Recommend monitoring frequencies increase to weekly for BOD, TSS, NH3-N, &
fecal coliform per region's request.
Recommend removal of discharge when an alternative becomes available.
Instream monitoring requirement may be dropped
when the facility agrees,
in writing, to a schedule for removal of their
point -source discharge.
Recommend effluent monitoring for T. Nitrogen &
T. Phosphorus.
-------------------------l------- — -----------------------_--------------
Recommended by. CUtxIA.
Date.
Reviewed by
Tech Support Supervisor: dyYi6o17"
Date: 8
Regional Supervisor:
Date: g
Permits & Engineering:
Date •—(611(fil
RETURN TO TECHNICAL SERVICES BY:
I
Se.2 �fl�t.� rnge�.

Facilitya K 0�
Name � _ Permit # /IUD �CvLr�a
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests,
using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure.- Revised *June 1988) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is% (defined as treatment two in the North Carolina procedure
document). The permit holder shall perform quarter monitoring using this procedure to establish
compliance with the permit condition. The first test will be ed after thirty days from
issuance of this permit during the months of erform0 Effluent
sampling for this testing shall be performed at the NPD 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
P.O. Box 27687
Raleigh, N.C. 27611
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 die cited document, such as rninimum
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 6 cfs
Permited Flow. • 3 MGD Recommended by:
IWC% /00
Basin & Sub -basin 63076 J
Receiving Stream Lr ct
County C Date a5
"Chronic Toxicity (Ceriodaphnia) P/F at %, 144 A, See Part 3 , Condition -�- .

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FEET
141
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Headworks Review
----------------
09/28
ver
Facility:
NPDES Permit No.:
Permitted Flow:
Actual Average Flow:
Subbasin:
Receiving Stream:
Stream Classification:
7Q10:
Average Streamflow:
IWC:
Percent industrial:
Standard Removal
Pollutant
AL
Eff.
(ug/1)
%
-----------
Cadmium
---------
S
2.0
-------
92%
Chromium
S
50
89%
Copper
AL
7
90%
Nickel
S
88
39%
Lead
S
25
81%
Zinc
AL
50
87%
Cyanide
S
5
87%
Mercury
S
0.012
86%
Silver
AL
0.06
94%
Arsenic
S
50
880
Allowable
Bkg Effluent
Pollutant
Conc.
Conc.
-----------
(ug/1)
---------
(ug/1)
-------
Cadmium
S
2.000
Chromium
S
50.000
Copper
AL
7.000
Nickel
S
88.000
Lead
S
25.000
Zinc
AL
Cyanide
S
5.000
Mercury
S
0.012
Silver
AL
0.060
Selenium
S
50.000
Arsenic
S
0.000
town of denton
nc0026689
0.300 mgd
0.141 mgd
30708.000
ut lick creek
c
0.000 cfs
0.500 cfs
100.0 %
15.000 %
Actual
Actual
Allowable
Domestic
Indust.
Total
Load
Load
Load
Load
(#/d)
-------
(#/d)
-------
(#/d)
-------
(#/d)
------
0.03
0.004
0.000
0.00
0.53
0.022
0.001
0.02
0.08
0.072
0.001
0.07
0.17
0.043
0.001
0.04
0.15
0.019
0.001
0.02
0.45
0.271
0.002
0.27
0.05
0.00
0.00
0.49
Predicted
Effluent
Actual
Permitted
(ug/1)
-------
(ug/1)
-------
0.272
0.340
2.150
3.272
6.204
11.473
22.811
29.032
3.230
4.037
30.162
36.902
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
Limit or Monitor?
Actual Permit.
Limit
Monitor
Monitor
Limit
Limit
Monitor
u5z �ewse`-4-wt
Limit
Monitor
Monitor
Limit
Limit
Monitor
Permitted
Indust. Tot
Load Lo
(#/d) (#/
0.001
0.
0.013
0.
0.063
0.
0.013
0.
0.006
0.
0.063
0.

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NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES AND
COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT
Winston-Salem Regional Office
August 1, 1989
M E M O R A N D U M
TO: Trevor Clements
FROM: Mike Mickey �t�
SUBJECT: Permit Renewal Request
Town of Denton WWTP
NPDES Permit No. Nc0026689
Davidson County
An investigation conducted by WSRO Staff has revealed
that all field data contained on the Town of Denton's
self -monitoring reports are inaccurate. The ORC has
admitted to entering falsified data (D.O., Temp, Residual
Chlorine and pH) on the reports since plant start up in
September 1985. A recent inspection found that the ORC was
even incapable of calibrating his YSI D.O. meter. The
certified laboratory data on the self -monitoring form (BOD,
TSS, NH -N Fecal Coliform) is believed to be accurate
althougA it is not representative of the effluent since all
samples were grab and not composite.
The Division acknowledged receipt of Denton's permit
renewal request on July 26, 1989. Please do not use the
self -monitoring data to make any assumptions about the
effect of the effluent on the U.T. to Lick Creek.
A recommendation for revocation of the ORC's
certificate was submitted to Raleigh on June 16, 1989. To
date no action has been taken.
If you have any questions, please call.
MMM/vm
cc: WSRO
RECEIVED
AUG 2 1969,
TECHNICAL SUPPORT BRANCH

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DENTON - LIT TO LICK CREEK DATA
too
STATION
LC3
LC4
LC5
LC6
I 7ruo/
LC3
lost w5e-
LC4
LC5
LC6
Date
87/08/19
87/08/19
87/08/19
87/08/19
87/08/20
87/08/20
87/08/20
87/08/20
Time
1245
1215
1230
1345
.1145
1250
1030
1100
D.O.
8.8
7.3
8.7
7.4
7.2
_
7
Temp
25.5
26.8
25.3
24.2
24.5
26
23.9
24
Cond
175
720
550
457
170
610
600
460
H
7.9
6.8
7
7.3
7.3
6.4
6.9
7.1
now cfs
0.665
0.198
0.265
+
:
fecal Mf
490
7100
3500
720
170
<10
6600
270
COD
8
32
28
28
8
48
23
27
BO D5
2.7
3.1
+
*
1.5
3.6
2.4
1.5
BODLT
13.8
•
}
+
TS
76
380
310
250
130
370
380
3
TSS
12
7
5
5
5
3
11
10
TOC
<5
12
11
14
<5
<10
1600
270
NH3
0.05
0.1 1
0.18
0.62
0.06
0.04
0:07
0.52 '
TKN
0.3
1.
1.3
1.4
2.2
1
1.3
NO2 + NO3
0.07
.1 11 ,
7
1
0.09
13.00
8.00
3.1
PO4
0.11
6
4.6
0.17
6.7
5.5
P tot
0.1
77.6 16.1
4.7
0.11
7.2
5.8
5.2
Cd
<10
<10
<10
<10
+
+
Cr
<25
<25
<25
<25
Cu
<10
16
13
<10
#
+
Ni
<50
<50
<50
<50
*
*
+
Pb
<50
<50
<50
<50
*
*
+
Zn
<10
49
17
4mtay, Pow

LL
)U)T?
COIN
icy
IM

DENTON - UT TO LICK CREEK DATA k
STATION
LC3
LC4
LC5
LC6
LC3
LC4
LC5
LC6
Date
Time
87/06/19
1245
87/08/19
1215
87/08/19
1230
87/08/19
1345
87/08/20
1145
87/08/20
1250
87/08/20
1030
87/08/20
1100
D.O.
8.8
7.3
6.5
6.5
8.7
7.4
7.2
7
Tem
25.5
26.8
25.3
24.2
24.5
26
23.9
24
Co rid
175
720
550
1457
170
610
600
460
H
7.9
6.8
7
7.3
7.3
6.4
6.9
7.1
flow cfa
0.665
0.198
0.265
Fecal MF
490
7100
3500
720
170
<10
1600
270
COD
8
32
28
28 -
8
48
23
27
BO D5
2.7
3.1
*
*
1.5
3.6
2.4
1.5
BOUT
13.8
*
*
*
*
*
TS
76
380
310
250
130
370
380
13
TSS
12
7
5
is
5
3
11
10
TOC
<5
12
11 114
<5
<10
1600 1270
NH3
0.05
0.11
0.18 10.62
0.06
0.04
0.07 10.52
TK N
0.3
1.
1.3
1.4
0.2
2.2
1 11.3
NO2 + NO3
0.07
.1 1 \ �
7
1
0.09
13.00
8.00
3.1
PO4 10.11
6
4.6
0.17
6.7
5.5
P tot
0.16
7.6
6.1
4.7
0.11
7.2
5.8
5.2
Cd
<10
<10
<10
<10
Cr
<25
<25
<25
<25
Cu
<10 116
13
<10
Ni
<50
<50
<50 1<50
Pb
<50
<50
<50 1
<50
Zn'
00 149
115

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