NC0036196_Permit (Modification)_19900420

NPDES DOCUNENT SCANNINO COVER SHEET
NPDES Permit:
NC0036196
Clark Creek WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification -
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
April 20, 1990
Taxi's document in printed con. ireimise paper- - ixti.C61•1B el.71.ST
ICCMtlerlt Cbill the re‘rertse *side

IMIIISENGINEERS
April 20, 1990
Tilj:rirq%Af
446,4,(6,
6 r/
949.022.102
Mr. M. Dale Overcash, P.E.
Division of Environmental Management
NC Department of Environment, Health, and Natural Resource
Post Office Box 27687
Raleigh, North Carolina 27611-7687
Subject:
Proposed Modification to NPDES Permit NC0036196,
City of Newton, Catawba County
Dear Mr. Overcash:
APR 30 1990
to q
WATER 'QUAL:TY
SECTI-ON
On March 30 we received from the City of Newton a copy of a March 12
letter from Dr. George T. Everett related to a proposed revision for
subject Permit. Newton City Manager Richard L. French asked that we
review the proposed Permit with representatives of the City and local
industries on Thursday, April 5.
The City and industry representatives had several questions concerning
the Permit and directed me to contact you for resolution in accordance with
Dr. Everett's letter. Unfortunately, I have been unable to do so by
phone, and therefore would like herein to summarize their concerns as
follows:
figgiEgyy
-APR 23 1990
DIV. OF ENVIRONMENTAL MANAGEMENI
Raleigh, NC
1. The new effluent limitations and monitoring requirements are
attributed to "evaluation of recent pretreatment headworks
information". Could you please supply specific references as to
what data influenced the various additional limitations and
monitoring requirements, what the basis of selecting these data
might have been, and generally support why new extensive and
costly monitoring programs are necessary for a facility that has
achieved substantially continuous compliance with its Permit, and
been cited by EPA for outstanding performance.
2. The additional monitoring requirements relate to chronic toxicity
testing and to various metals for which "daily maximum" limits
are to be imposed while testing is quarterly, weekly, or
monthly. All of these pollutant parameters have apparently been
computed in relationship to the statistical seven day -ten year low
flow which is unrelated to the frequency criteria established for
the monitoring.
Is there some alternative frequency that might more realistically
correspond to actual stream flow, or increased frequency to allow
for statistical variations? Could you please elaborate on the
selection of these criteria.
6525 Morrison Boulevard
Charlotte, North Carolina 28211
704/365-2325

InifillSENGINEERS
Page 2
Mr. M. Dale Overcash, P.E.
April 20, 1990
3. What procedures are there for the City to appeal these proposed
new effluent limitations? Of major concern is the fact that
chronic toxicity, under the proposed new limits, becomes
automatically a measure of permit compliance; and chronic
toxicity is not a test for which replication or verification exists.
Clark Creek effluent has not consistently passed chronic toxicity
testing in recent trials, but extensive cooperative efforts are
underway on the part of the City and its industries to identify
those potential toxic substances which may have prompted the
failure of the tests under the dilutions corresponding to the
seven day -ten year low flow.
While the City of Newton intends to comply with its NPDES
Permit, it is their goal to have the Permit appropriately
applicable to their situation, and those appeal routes available to
assure the applicability of the Permit need be identified.
4. The City of Newton has for several years been engaged in the
planning for expansion of the Clark Creek Wastewater Treatment
Plant to meet the needs of all customers within the region served
by this major facility. Substantially all capacity at the Plant has
been committed to existing customers. Significant pressure
exists to expand capacity to alleviate pollution problems in
non-sewered areas and to accommodate normal growth throughout
the region. A decision facing the City has been whether to
double the 5.0 MGD Plant capacity at this time, or to limit the
currently anticipated expansion to a 50 percent increase (a total
7.5 MGD at the site).
Will the current NPDES effluent criteria apply to Plant
expansions? The reported statistical low flow of Clark Creek has
declined in recent years. Are there programs available to the
City (a) to more closely monitor stream flow in an effort to
achieve more realistic dilution standards, (b) to augment low
flow conditions by providing on -stream storage, (c) to mitigate
the negative impacts of the discharge by holding treated effluent
during periods of low flow, or (d) other mitigating situations
which you might suggest? What does the Division of
Environmental Management anticipate for near and long term
future limitation on water quality of discharges at the Clark
Creek Treatment Plant site?
These matters might more appropriately be discussed orally, and we would
gladly do so if an appropriate mutually agreeable time might be identified.
In the interim, the City recognizes your authority to make NPDES Permit

UUiiiiSENGINEERS
Page 2
Mr. M. Dale Overcash, P.E.
April 20, 1990
modifications and therefore requests that only those modifications that are
unquestionably appropriate be imposed. We would sincerely appreciate
early contact from you relative to these vital issues.
Yours very truly,
WILLIS ENGINEERS
e`-- -
C. A. WiHis, P.E.
CAW/jcg
cc: Mr. Richard L. French
Mr. Dwight E. Wilson, Sr.
Dr. George T. Everett /
Mooresville Regional Office, DEM

State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor George T. Everett, Ph. D.
William W. Cobey, Jr., Secretary Director
March 12, 1990
Mr. Richard French
City of Newton
PO Box 550
Newton, NC 28658
Subject: Modification to NPDES
Permit No. NC0036196
City of Newton
Catawba County
Dear Mr. French:
The 40 Code of Federal Regulations (CFR) Part 122 Subpart D - Transfer, Modification,
Revocation and Reissuance, and Termination of Permits allows the Director of the Division of
Environmental Management to reopen and modify NPDES permits, when necessary. More
specifically, 40 CFR Part 122.62 (a) (6) states that an NPDES permit may be modified to include
an applicable 307(a) toxic effluent standard or prohibition.
The Division has recently determined that it is necessary to reopen the subject permit to add
effluent limitations for cadmium, chromium, nickel, lead, cyanide, mercury, and chronic toxicity.
A monitoring requirement for silver has also been added to the subject permit. The decision to
incorporate these new effluent limitations and monitoring requirements is based upon an evaluation
of recent pretreatment headworks information submitted to the Division by the City of Newton.
Therefore, effluent pages for the subject permit have been modified to reflect these changes and are
enclosed.
A copy of the subject permit is enclosed for your review. Please submit comments to the
Division of Environmental Management before April 9, 1990. The Division will publish our intent
to reissue the permit on May 1, 1990, and it will be scheduled to issue June 15, 1990.
If you have any questions concerning this permit modification, please contact Mr. Dale
Overcash at telephone number [phone].
Si
George T
erett
cc: Permit File
Mooresville Regional Office
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

WILLIS ENGINEERS
Copper
Date :Influent :Effluent :I Removal: Influent :
1985
Totals
Average
1986
Totals
Average
1987
Totals
Average
1988
Totals
Average
•
5.4080 :
0.3863 :
19
8.5490 :
0.5343 :
•
3.7660 :
0.3424 :
5.7320 :
0.2730 :
1.1240 : 10.8231 :
0.0803 : 0.7731 :
19
•
0.3470 :
0.0248 :
2.6650 : 10.7373 : 6.5520 :
0.1666 0.6711 : 0.4095 :
1.6610 : 5.9791 : 2.2710 :
0.1510 : 0.5436 : 0.2271 :
•
3.3740 : 8.717 :
0.1406 1 0.459 :
2.2293 :
0.1062 :
Enron:us
Nickel
Effluent :I Reaoval: Influent : Effluent :I Removal:
•
0.0683 : 9.6508 : 0.4010 : 0.2640 :
0.0049 : 0.7424 : 0.0286 : 0.0189 :
ILI :
0.4540 : 12.2994 : 4.5120 : 0.7640 :
0.0284 : 0.7687 : 0.2E120 : 0.0478 :
•
0.2860 : 6.4561 : 2.7150 : 0.9230 :
0.0286 : 0.7173 : 0.3017 : 0.1026 :
• •
1.0478 : 11.5446 : 4.5553 : 1.9450 :
0.0437 : 0.6076 : 0.2169 : 0.0810 :
949.022 CLARK CREEK DATA, SUMMARY
Iinc
Influent : Effluent :X Re:loyal:
5.0367 :
0.4197 :
5.5741 :
0.4645 :
1
4.7070
0.5886 :
•
7.8902 :
0.4641 :
•
2.8290 :
0.2021 :
8 :
1.0100 :
0.0721 :
111 :
2.1600 : 0.4780 :
0.1350 1 0.0299 :
•
1.3490 :
0.1226 :
0.4930 :
0.0448 :
0.8590 :
0.0358 :
•
9.6335 :
0.7410 :
11.5907 1
0.7244 :
6.8654 :
0.6241 :
•
13.5648 :
0.6782 :
Lead Cadslua Iron . . .
Influent : Effluent :I Renoval: Influent : Effluent :I Removal:Influent :Effluent :I Removal:
. .
0.2030 :
0,0338 :
:
0.0990 :
0.0198 :
5-
1.9980 : 0.7090 :
0.1427 : 0.0506 :
0.5550 : 0.3660 :
0.0555 : 0.0366 :
1.1670 : 0.5510 :
0.0584 : 0.0240 :
•
2.2753 :
0.5688 :
•
6.3185 :
0.5744 :
•
•
3.4156 :
0.3416 :
•
•
7.7778 :
0.4861 :
0.0000 : 0.0000 :
0.0000: 0.0000:
0.5144 : 0.0782 :
0.0322 : 0.0049 :
•
0.1540 :
0.0171 :
•
•
0.4770 :
0.0251 :
: 0.0000: 0.0000:
: 0.0000: 0.0000:
!
2.6416 : 8.1810 : 1.3780 : 5.4690 1
0.2201 1.0226 : 0.1723 : 0.6836 :
0.1340 : 1.4561 : 1.8610 :
0.0149 : 0.1618 : 0.9305 :
•
0.1660 : 1.0348 : 0.0000 :
0.0075 : 0.0609 : 0.0000 :
0.2080 : 1.7719 :
0.1040 0.8859 :
0.0000
:
•
•
•
•
28-Dec-138

'o.
MILLIS EXSINEERS
949.022 CLARK CREEK DATA, 1985-1986
Copper Chromium Nickel Zinc Lead Cadmium Iron
Date :Influent :Effluent s% Removal: Influent : Effluent :% Removal: Influent 1 Effluent :% Removal: Influent : Effluent :I Removal: Influent Effluent :I Removal: Influent t Effluent :% Removal:Influent :Effluent Removal:
03/17/85 : 0.5520 : 0.1610 1 0.708 : 0.0270 : 0.0050 : 0.815 : 0.0560 : 0.0410 : 0.268 : 0.3880 : 0.1780 : 0.541 : • . • . : . . :
04/23/85 : 0.6640 : 0.1020 : 0.846 : 0.0100 : 0.0140 : i 0.0210 : 0.0320 : : 0.1910 : 0.3450 : . : : : :
04/30/85 : 0.4120 : 0.1050 : 0.745 : 0.0120 t 0.0060 : 0.500 : 0.0220 : 0.0190 : 0.136 : 0.1430 : 0.0800 : 0.441 t : • . : : : •
05/08/65 : 0.3090 : 0.0980 : 0.683 : 0.0190 : 0.0070 : 0.632 : 0.0280 : 0.0120 : 0.571 : 0.2210 1 0.0660 : 0.701 : • . • . : .
05/14/85 : 0.2490 : 0.1020 : 0.590 : 0.0080 : 0.0080 : 0.000 : 0.0440 : 0.0530 t : 0.1670 : 0.0730 s 0.563 : : : : : :
05/20/85 : 0.7670 : 0.1110 : 0.855 : 0.0450 : 0.0030 : 0.933 1 0.0310 : 0.0090 : 0.710 : 0.2400 : 0.0260 : 0.692 : . . . :
07/12/85 : 0.4680 : 0.0520 : 0.876 : 0.0470 : 0.0020 : 0.957 : 0.0380 : 0.0160 : 0.579 : 0.2950 : 0.0260 2 0.912 : : : • . . s :
07/17/85 : 0.2960 : 0.0960 : 0.676 : 0.0550 : 0.0003 : 0.995 : 0.0250 : 0.0030 : 0.880 : 0.1460 : 0.0460 : 0.685 : 0.1000 : 0.0100 : 0.900 : : : :
07/22/85 : 0.7760 : 0.0930 : 0.880 : 0.0250 : 0.0020 : 0.920 : 0.0510 : 0.0140 : 0.725 : 0.3070 : 0.0140 : 0.954 : 0.0200 : 0.0130 : 0.350 : : : • . :
07/29/85 : 0.1710 : 0.0490 : 0.713 : 0.0190 : 0.0030: 0.842 : 0.0150 : 0.0080 : 0.467 : 0.1420 : 0.0240 : 0.831 2 0.0110 t 0.0040 : 0.636 2 : : :
08/05/85 : 0.1930 : 0.0490 : 0.746 : 0.0250 : 0.0050 : 0.800 : 0.0260 : 0.0230 : 0.115 : 0.1840 : 0.0440 : 0.761 : 0.0360 : 0.0220 : 0.389 : • . : : • 08/13/85 : 0.2950 1 0.0670 : 0.773 : 0.0270 : 0.0060 : 0.778 : 0.0220 : 0.0150 : 0.318 : 0.1760 : 0.0410 : 0.767 : . : : : s
08/19/85 : 0.1370 : 0.0070 : 0.949 : 0.0160 : 0.0030 : 0.813 : 0.0100 : 0.0090 : 0.100 : 0.1180 : 0.0170 : 0.656 : 0.0160 : : : .
08/26/85 : 0.1190 1 0.0260 : 0.782 : 0.0120 : 0.0040 : 0.667 : 0.0120 : 0.0100 : 0.167 : 0.1110 : 0.0300 : 0.730 : 0.0200 : 0.0500 : : • .
: : : : : : : : : . : : : : : : : • •
. •
TOTALS : 5.4080 : 1.1240 : 10.8231 : 0.3470 : 0.0683 : 9.6508 : 0.4010 : 0.2640 : 5.0367 : 2.8290 : 1.0100 : 9.6335 : 0.2030 : 0.0990 : 2.2753 : 0.0000 1 0.0000 : : 0.0000 : 0.0000
AVERAGE : 0.3863 : 0.0803 : 0.7731 : 0.0248 : 0.0049 : 0.7424 : 0.0286 : 0.0189 : 0.4197 : 0.2021 : 0.0721 : 0.7410 : 0.0338 : 0.0198 : 0.3688 : 0.0000 : 0.0000 : : 0.0000 : 0.0000 :
: • 01/06/86 t 0.4090 : 0.2030 : 0.504 : 0.0130 : 0.0040 : 0.692 : 0.0080 : 0.0070 : 0.125 : 0.1180 : 0.0230 t 0.805 : : : : 0.0060 : 0.0040 : 0.333 : 0.7080 : 0.1830 : 0.742 :
01/15/86 : 0.7520 : 0.2240 : 0.695 : 0.0420 : 0.0180 : 0.571 : 0.0120 : 0.0100 : 0.167 : 0.0990 1 0.0280 : 0.717 2 0.0230 : 0.0190 : 0.174 : 0.0020 : 0.0030 : : 0.2030 : 0.1460 : 0.281 :
01/20/86 : 0.5080 : 0.2030 : 0.600 : 0.0080 :( 0.0010 : 0.875 : 0.0170 i 0.0080 : 0.529 : 0.1060 2 0.0150 2 0.858 : 0.0670 : 0.0350 : 0.478 1 0.0030 : 0.0030 : 0.000 : 1.0700 1 0.0570 : 0.947 2
01/29/86 : 1.3330 : 0.3330 : 0.750 : 0.0490 : 0.0090 : 0.816 : 0.0180 : 0.0170 : 0.056 : 0.1280 : 0.0270 s 0.789 : 0.0150 : 0.0170 2 2 0.0030 : 0.0040 : : 0.9950 : 0.1050 : 0.894 :
07/15/86 2 0.3890 : 0.1330 : 0.656 : 0.1140 : 0.0220 : 0.807 : 0.0130 : 0.0140 : . 0.1220 : 0.0290 : 0.762 : 0.1060 : 0.1170 : : 0.0010 : 0.0020 : $
08/14/86 : 0.2940 : 0.0900 : 0.694 : 1.0500 : 0.0960 : 0.909 : 0.1750 : 0.0130 : 0.926 : 0.1940 : 0.0320 : 0.835 : 0.2010 : 0.0470 : 0.766 : 0.0004 : 0.0002 : 0.500 : 3.6100 : 0.2050 : 0.943 :
08/20/86 : 0.4030 : 0.1040 : 0.742 : 0.0340 : 0.0050 : 0.053 : 0.0330 : 0.0270 : 0.182 t 0.1640 1 0.0340 : 0.793 : 0.0520 : 0.0210 : 0.596 : 0.0030 2 0.0020 2 0.333 : : :
08/27/86 : 0.5560 : 0.1170 t 0.790 : 0.0210 : 0.0060 : 0.714 : 0.0460 : 0.0170 : 0.646 : 0.1180 : 0.0300 : 0.746 1 0.0220 : 0.0170 : 0.227 : 0.0030 : 0.0030 : 0.000 : : • 09/04/86 : 0.4480 : 0.1550 : 0.654 : 0.7680 : 0.0230 : 0.970 : 0.1210 : 0.1750 : : 0.1500 : 0.0270 : 0.820 : 0.0830 : 0.0080 : 0.904 : 0.0030 : 0.0020 : 0.333 : • .
09/10786 : 0.2770 : 0.1060 : 0.617 : 0.0810 : 0.0200 : 0.753 : 0.0440 : 0.0410 : 0.068 : 0.1200 : 0.0400 : 0.667 : 0.0140 : 0.0320 : : 0.0010 : 0.0020 : :
09/17/86 : 0.4830 : 0.1330 t 0.725 : 0.1570 : 0.0220 : 0.860 : 0.0760 : 0.0280 : 0.632 : 0.2540 : 0.0440 : 0.827 : 0.1250 : 0.0070 2 0.944 : 0.0030 : 0.0030 : 0.000: :
09/30/66 : 0.5520 : 0.1980 : 0.641 : 0.0630 : 0.0160 : 0.714 : 0.0830 : 0.0500 : 0.398 : 0.1210 : 0.0350 : 0.711 : 0.0140 : 0.0070 : 0.500 : 0.0040 : 0.0040 1 0.000 1 . : • 10/08/86 : 0.7190 : 0.1290 : 0.821 : 0.1310 : 0.0540 : 0.588 : 0.0300 : 0.0580 : : 0.0020 : 0.0020 : 0.000: 0.9190 : 0.0710 : 0.923 : 0.4620 : 0.0270 : 0.942 : 0.0310 : 0.0150 : 0.516 s
10/16/66 : 0.5980 : 0.1770 : 0.704 : 3.0200 : 0.0830 : 0.973 : 1.1100 : 0.1060 : 0.905 : 0.1330 : 0.0370 2 0.722 : 0.0570 : 0.0110 : 0.807 : 0.0030 : 0.0030 : 0.000 : 0.7450 : 0.3230 : 0.564 :
11/25/66 : 0.4190 : 0.1740 : 0.585 : 0.9290 : 0.0170 : 0.982 : 2.7000 : 0.1560 : 0.942 : 0.1290 2 0.0320 : 0.752 : . : : 0.0050 : 0.0040 : 0.200 t : s
12/15/86 : 0.4090 : 0.1810 : 0.557 : 0.0720 : 0.0560 2 0.222 2 0.0240 : 0.0370 : . 0.2020 : 0.0430 : 0.787 : 0.3000 2 0.3000 : 0.000 : 0.0120 : 0.0120 t 0.000 : 0.8190 : 0.3420 : 0.562 :
: . . . : . : . : : : . . : . . : : : :
TOTALS : 8.5490 : 2.6650 : 10.7373 : 6.5520 : 0.4540 : 12.2994 : 4.5120 : 0.7640 : 5.5741 : 2.1600 : 0.4780 : 11.5907 : 1.9980 : 0.7090 : 6.3105 2 0.5144 : 0.0782 : 2.6416 : 8.1810 : 1.3780 : 5.4690 :
AVERAGE : 0.5343 : 0.1666 : 0.6711 : 0.4095 : 0.0284 : 0.7687 : 0.2820 : 0.0478 : 0.4645 : 0.1350 : 0.0299 : 0.7244 : 0.1427 : 0.0506 : 0.5744 : 0.0322 2 0.0049 : 0.2201 : 1.0226 : 0.1723 1 0.6836 :
28-Dec-88 PAGE 1

WILLIS ENGINEERS
949.022 CLARK CREEK DATA, 1987
Copper Chromium Nickel lint Lead Cadmium Iron
Date :Influent :Effluent :I Removal: Influent : Effluent :I Removal: Influent : Effluent :I Removal: Influent : Effluent :I Removal: Influent 1 Effluent :I Removal: Influent : Effluent :I Removal:Influent :Effluent :I Removal:
02/13/87 : 0.4770 : 0.2540 : 0.468 : 0.0490 : 0.0700 : • . • . : 0.1430 : 0.0710 : 0.503 : 0.0450 : 0.0370 : 0.178 :< 0.0500 ;< 0.0500 : 0.000 : •
•
03/13/87 : 0.4110 : 0.1300 : 0.684 : 0.0470 : 0.0120 : 0.745 : 0.2400 : 0.3140 : : 0.1330 : 0.670 : 0.590 : 0.0630 2 0.0070 : 0.8119 : 0.0090 : 0.0060 : 0.333
05/28/87 : 0.2890 : 0.1770 : 0.389 : . . . . : 0.1380 : 0.0270 : 0.790 : . . : 0.0190 : 0.0040 : 0.709 : 0.9910 : 0.0780 : 0.921 :
06/05/8/ : 0.3750 : 0.1230 : 0.672 : 0.1040 : 0.0230 : 0.779 : 0.0790 : 0.0280 : 0.646 : 0.1220 : 0.0380 : 0.689 : 0.1200 : 0.0700 : 0.417 : . . • . :
07/22/87 : 0.3510 : 0.1540 : 0.561 : 0.1120 :( 0.0500 : 0.554 : 0.2310 :( 0.0500 : 0.784 : 0.0850 :( 0.0500 : 0.412 :< 0.1000 :< 0.1000 : 0.000 :< 0.0100 :( 0.0100 : 0.000
08120/07 : 0.2910 : 0.1760 : 0.395 . 0.0930 : 0.0200 : 0,785 : 0.0720 : 0.0550 : 0.236 : 0.1410 : 0.0490 : 0.652 : 0,0600 : 0.0100: 0.1333 : 0.0060: 0.0040 : 0.333 : t
09/16/87 : 0.2400 : 0.1700 : 0.292 :( 0.0500 :( 0.0500 : 0.000 :( 0.0500 :( 0.0500 : 0.000 : 0.1000 1 0.0600 : 0.400 :( 0.1000 :( 0.1000 : 0.000 :< 0.0300 1( 0.0300 : 0.000 : 0.8700 1 0.1300 : 0.851 :
09/24/07 : 0.31340 : 0.1290 : 0.664 : 1.4900 : 0.0150 : 0.990 : 1.4000 : 0.2800 : 0.800 : 0.1030 : 0.0340 : 0.670 : 0.0210 : 0.0060 : 0.714 :< 0.0100 :( 0.0100 : 0.000:
10/14/87 : 0.2800 : 0.0900 : 0.679 : 0.1400 : 0.0300 : 0.786 : 0.2300 : 0.1100 : 0.522 : 0.1300 : 0.0300 : 0.769 :( 0.0100 :( 0.0100 : 0.000 :< 0.0100 10 0.0100 : 0.000 :
11/19/117 : 0.2400 : 0.1200 : 0.500 : 0.0800 :( 0.0100 : 0.875 : 0.3400 : 0.0200 : 0.941 : 0.1400 : 0.0400 : 0.714 : 0.0100 :( 0.0100 : 0.000 :< 0.0100 :< 0.0100 : 0.000:
12/09/87 : 0.4280 : 0.1380 : 0.678 : 0.1060 : 0.0060 : 0.943 : 0.0730 : 0.0160 : 0.781 : 0.1080 : 0.0350 : 0.676 : 0.0260 1 0.0160 : 0.385 : : : :
: . • • • •
TOTALS : 3.7660 : 1.6610 : 5.9791 : 2.2710 : 0.21360 : 6.4561 1 2.7150 : 0.9230 : ▪ 4.7090 : 1.3490 : 0.4930 : 6.8654 : ▪ 0.5550 1 0.3660 : ▪ 3.4156 : • 0.1540 : 0.1340 : 1.4561 : 1.8610 : 0.2080 : 1.7719 :
AVE006E : 0.3424 : 0.1510 : 0.5436 : 0.2271 ; 0.0286 : 0.7173 : 0.3017 : 0.1026 : 0.5886 : 0.1226 : 0.0448 : 0.6241 : 0.0555 : 0.0366 : 0.3416 : 0.0171 : 0.0111 : 0.1618 : 0.9305 : 0.1040 : 0.8859 :
28-0ec-88 PAGE 2

WILLIS ENS1REERS
949.022 CLARK CREEK DATA, 1988 ,
Copper • Chromium • Nickel • X Zinc • Lead • Cadmium Iron
Date :Influent :Effluent a Removal: Influent : Effluent a Removal' Influent : Effluent Removal: influent : Effluent a Removal: Influent Effluent a Removal:.Influent Effluent a Resovalanfluent :Effluent a Removals
•
01/06/88 1 0.1800 : 0.1190 : 0.339 : 0.0140 s 0.0040m 0.714 : 0.0250 : 0.0160 : 0.360 s 0.0940 1 0.0310 : 0.670 : 0.0150 : 0.0130 : 0.133 : : • .
02/03/88 : 0.3880 : 0.1610 : 0.585 : 0.1050 : 0.0040 : 0.962 : 0.5220 : 0.1610 : 0.692 : 0.1070 : 0.0210 : 0.804 : 0.0210 : 0.0150 : 0.286 : 0.0030 : 0.0040
03/09/68 1 0.1800 : 0.1780 : 0.011 : 0.0680 1( 0.0050 s 0.926 : 0.0440 : 0.0450 : : 0.0880 : 0.0300 : 0.659 : 0.0150 s 0.0170 s :( 0.0050 :( 0.0050 : 0.000 : t : • . .
04/28/88 : 0.2030 : 0.1470 : 0.276 : 0.1140 : 0.0390 t 0.658 : 0.1370 : 0.1600 : :( 0.0050 :( 0.0050 : 0.000 : 0.0500 : 0.0060 : 0.880 : 0.0200 : 0.0190 : 0.030
05/18/88 : 0.2390 : 0.1420 : 0.406 : 0.0330 : 0.0040 $ 0.879 : 0.0450 : 0.0270 : 0.400 : 0.1100 : 0.0330 : 0.700 : 0.0150 : 0.0120 : 0.200 : 0.0040 : 0.0040 : 0.000 : : :
06/06/88 : 0.4170 : • . . 0.0340 : : : 0.9300 : : 0.1350 : : . 0.0300 : t : 0.0060
500/50 : : 0.1200 : : : 0.0060 1 s 0.0620 : : : 0.0290 : % : 0.0200 s s :( 0.0050 : : t • . • 100/50 : : 0.1250 : : :( 0.0050 : : : 0.0650 ; : : 0.0300 : :( 0.0050 : : : 0.0050 1 • . : : • -06/09/88: • . • • : : : : : : : : : : :
1 :
500/50 : : 0.1660 : : : 0.0210 : . • : 0.0270 : :( 0.0050 : : 0.0860 : . : : 0.0250 : t : : • . • 100/50 : : 0.1750 : : : 0.0200 t : : 0.0950 : : : 0.0300 : : s 0.0450 : : :( 0.0050 : . t t
06/13/88 : 0.2860 : 0.1230 : 0.570 : 0.0190 :( 0.0050 : 0.737 : 0.0510 : 0.0420 : 0.176 t 0.1380 : 0.0260 : 0.812 : 0.0280 : 0.0150 t 0.464 :( 0.0050 :( 0.0050 : 0.000 : : : •
.06/17/88 : 0.2320 : 0.1290 : 0.444 : 0.0110 :( 0.0050 : 0.545 s 0.5190 % 0.0420 : 0.919 : 0.1340 1 0.0300 : 0.776 : 0.0400 : 0.0300 : 0.250 :( 0.0050 :( 0.0050: 0.000 : : . • 4/27/88 : 0.4200 : 0.1350 : 0.679 : 0.0500 :( 0.0050 : 0.900 : 0.2050 : 0.1750 : 0.146 : 0.1550 : 0.0350 : 0.774 : 0.0350 : 0.0150 : 0.571 :( 0.0050 :( 0.0050 : 0.000 : : • . :
4'06/30/88 : 0.2450 : 0.1650 : 0.327 :( 0.0050 :( 0.0050 : 0.000 : 0.1850 : 0.1400 : 0.243 : 0.1500 : 0.0450 : 0.700 : 0.5600 : 0.1000 : 0.821 : 0.3300 :( 0.0050 $ 0.185 : : • . :
07/13/88 : 0.3700 : 0.1450 : 0.608 : 0.0150 :( 0.0050 : 0.667 : 0.0600 1 0.0800 : t 0.1400 : 0.0450 : 0.679 : 0.0200 : 0.0050 : 0.750 : 0.0050 :( 0.0050 : 0.000 t : • . :
08/09/68 : 0.3450 : 0.2000 : 0.420 : 0.1800 :( 0.0100 : 0.944 : 0.0613 : 0.0200 : 0.674 : 0.2200 : 0.0300 : 0.864 : 0.0450 1 0.0050 : 0.889 :( 0.0050 :( 0.0050 : 0.000: :
09/05/88 : 0.1650 : 0.0600 : 0.636 : 0.0300 :( 0.0100 : 0.667 : 0.1100 : 0.0450 : 0.591 : 0.1800 : 0.0300 : 0.833 : 0.0300 :( 0.0100 : 0.667 :( 0.0100 :( 0.0100 : 0.000 :Toxicity :Passed
09/06/88 : 0.2400 : 0.0600 : 0.750 :( 0.0100 I( 0.0100 1 0.000 : 0.0650 : 0.0300 : 0.538 : 0.1600 : 0.0400 : 0.750 : 0.0300 : 0.0400 : :( 0.0150 :( 0.0150 : 0.000 : • 09/07/88 : 0.1450 : 0.0700 : 0.517 : 0.0100 :( 0.0100 : 0.000 : 0.0600 : 0.0450 t 0.250 : 0.1400 : 0.0450 t 0.679 : . : . . • . :Toxicity :Passed 1 • 10/18/88 : 0.3650 : 0.1150 : 0.685 : 0.0123 : 0.0113 : 0.081 : 0.3130 : 0.1630 : 0.479 : 0.1350 : 0.0350 : 0.741 : 0.0350 : 0.0200 : 0.429 :( 0.0130 :( 0.0130 1 0.000 : : ' 10/19/88 : 0.2280 : 0.1980 : 0.132 : 0.4650 : 0.1900 : 0.591 : 0.1550 : 0.1300 : 0.161 : 0.1430 : 0.0330 : 0.769 : 0.0480 : 0.0150 : 0.688 :( 0.0130 :( 0.0130 : 0.000 : : : • 10/20/88 : 0.1430 : 0.1530 : : 0.1230 : 0.5800 : : 0.0900 : 0.0900 : 0.000: 0.1150 : 0.0330 : 0.713 : 0.0200 : 0.0050 : 0.750 :( 0.0130 :( 0.0130 : 0.000 : : • 11/17/88 : 0.4280 : 0.1750 : 0.591 : 0.2030 : 0.0330 : 0.837 : 0.4000 : 0.1330 : 0.668 : 0.1800 : 0.0730 : 0.594 : 0.0300 : 0.0300 : 0.000 :( 0.0070 :( 0.0070 : 0.000 : : : • 12/06/88 : 0.2850 : 0.1300 : 0.544 : 0.0880 : 0.0480 : 0.455 : 0.1600 : 0.0480 : 0.700 : 0.1040 : 0.0500 : 0.519 :( 0.0500 :( 0.0500 : 0.000 :( 0.0050 :( 0.0050 : 0.000 : : • . :
12/09/68 : 0.2280 : 0.1830 : 0.191 : 0.6400 :( 0.0125 1 0.980 : 0.4180 1 0.0450 : 0.892 : 0.1550 : 0.0730 : 0.529 :( 0.0500 : 0.0530 : : 0.0080 : 0.0080 : 0.000 : : • . :
: • . : . : . : : : • . : . : : • TOTALS : 5.7320 : 3.3740 : 8.717 : 2.2293 : 1.0478 : 11.5446 : 4.5553 : 1.9450 : 7.8902 : 2.7880 : 0.8590 : 13.5648 : 1.1670 t 0.5510 : 7.7778 t 0.4770 : 0.1660 : 1.0348 : 0.0000 : 0.0000 :
AVERASE s 0.2730 : 0.1406 : 0.459 : 0.1062 : 0.0437 1 0.6076 : 0.2169 : 0.0810 : 0.4641 : 0.1328 : 0.0358 : 0.6782 : 0.0584 : 0.0240 : 0.4861 : 0.0251 : 0.0075 : 0.0609 : 0.0000 : 0.0000:
28-Dec-88 PAGE 1

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO() 36 I %
FACILITY NAME: Obi a ALIA/Int - afrt CAA- CJ Gyre
Facility Status: Cre'rhitik
Permit Status: Ree,Eorw-
,/
Major Minor
Pipe No.: 00 /
Design Capacity: 5.0 A/649
Domestic (% of Flow): IV. / Afretc. •c..
Industrial (% of Flow): 5:5: 9 7, ‘Z/46.s7111:41
Comments:
ver_
RECEIVING STREAM: dmcAtc.
Class:
Sub-Basin: -030/3S
Reference USGS Quad: C f (please attach)
County: C.41:404 A
Regional Office: Moareiv/A_
Requested by:
Prepared by:
Reviewed b
Date:
Date:
Date: (9-PCDP
Modeler
Date Rec.
#
-A411/
/°/23/JP9
2 9 I 9
Drainage Area (mi2 ) 9.3 Avg. Streamflow (cfs):
7Q10 (cfs) 6 Winter 7Q10 (cfs) /0 30Q2 (cfs)
Toxicity Limits: TWC S6 %
Instream Monitoring:
Parameters Cate"%delow-'
Acu
hronic
Upstream
Location shi/t. Rod 2 0 /
Downstream Y Location Air. A.4./ toa
Characteristics citeristics
A 1 .I, 14)( MI ti Ai
e.44.; 1 A (toiy,
I. r (wq)
ekow:voi (vjA)
Pl• ° 64)
Ahdes/ 63.A)
/54 .0 (6,) 9)
461 (al,t)
/ is 0
,
zim. ( , 5 A)
1
if-fi7/ - d ...,
Mac,- ( (311)
Lffiva- 1,...„,,
a
/7'i (a /6
t w
eilivg./F 44.-i,/aei.i•
7
,
S
,
Comments: gurfAv, Ae4Efic.„;4 'tete,' 1414VLrgit•R"
h*fruh 001 owfoligvi44 etr Is an i.€4.41 44Stet cn, ticw ow-
rt,v4.1 rm.-4.4,10- 4 kfffric,

RECEIVED
Pant ENVIRONMENTAL AWIASENIEim
um 26 maquest No.: ZA
WASTELOAD ALLOdATION Ampap FORM
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad: E14NW
EFFLUENT LIMITS
Cadmium
Chromium
Nickel
Lead
Cyanide
Mercury
CITY OF gEWTON-CLARK
NC0036196
55.9% INDUSTRIAL/
EXISTING
CLARK CREEK
030835
CATAWBA
MR0
REOPENER
10/23/89
Daily max.
CLAUSE
CREEK WWTP
44.1% DOMESTIC
Drainage
Summer
Winter
Average
& MONITORING
(ug/l): 3.50 (WQ)
(ug/l): 89.00 (WQ)
(ug/l): 156.00 (WQ)
(ug/l): 44.00 (WQ)
(ug/1): 8.90 (WQ)
(ug/1): 0.02 (WQ)
area: 29.300 sq mi
7Q10: 6.00 cfs
7Q10: 10.00 cfs
flow: 35.00 cfs
30Q2: cfs
IWC: 56%
Zinc (ug/1):
Silver (ug/l):
Copper (ug/l):
monitor
monitor
monitor
Toxicity Testing Req.: Quarterly Chronic/Ceriodaphnia @ 56%
MONITORING
Upstream (Y/N): Y Location: STATE ROAD 2014
Downstream (Y/N): Y Location: STATE ROAD 2012
COMMENTS
REOPENING THE NPDES PERMIT TO REFLECT THE ABOVE EFFLUENT LIMITS AND MONITORING
CHANGES IS RECOMMENDED BASED ON NEW OR REVISED PRETREATMENT HEADWORKS
INFORMATION. (SEE ATTACHED MEMO).
RECOMMEND INSTREAM MONITORING FOR CADMIUM.
Recommended by: R. Altet.. Date: /1/41/40
Reviewed by
Instream Assessment:
Regional Supervisor: 7.)%17
Yl&ylk -;JS.44t1
Permits & Engineering:
WQ Section Chief: ("—
RETURN TO TECHNICAL SERVICES BY:
Date:
Date:
•
Date:
Date:
FEi SO 1990

.8/89
E cna 0 Facility Name ii4Ahlrif ceovtaAJT/
Permit # A./G 00.3g/9.4.
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 ST % (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
issuance of this permit during the months of VIA) fee AMR-- . 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 pem-iit 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 datafrom 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 cfs
Permited Flow S. ° MGD
IWC% . 56
Basin & Sub -basin en; ss
Receiving Stream etiox cAtric
County urikiaA
Recommended by:
**Chronic Toxicity (Ceriodaphnia) P/F at %, c Askt, See Part L. , Condition .

DIVISION OF ENVIRONMENTAL MANAGEMENT
January 16, 1990
MEMORANDUM
TO: WLA File
FROM: Jackie Nowe14
SUBJECT: Reopening Permit for City of Newton -Clark Creek WWTP
NPDES Permit No. NC0036196
Catawba County
The Technical Support Branch has recently evaluated newly sub-
mitted pretreatment headworks information for the subject facility.
This information on these 307 (a) priority pollutants was either
not available when Newton's NPDES permit was last renewed or the
POTW's effluent composition has changed substantially since permit
issuance. After review of this data, it has been determined that
the NPDES permit should be reopened, pursuant to Part III Condition
E of the subject permit, for the addition of effluent limits and/or
monitoring requirements for the parameters indicated on the attached
approval form. (In addition, a whole -effluent toxicity limit will
now become a condition of the NPDES permit.) Existing permit limits
and/or monitoring requirements not detailed in the attached approval
form should remain unchanged.

CHLORINE ANALYSIS
7Q10: 6.0000 cfs
CL2 Effl. Conc: 0.1530 mg/1 Assm. 0.8 mg/1 A no d
AL (17/19 ug/l): 17.0000 ug/1 Chronic/Acute rspctvl
Upstream CL2 Conc.: 0.0000 ug/1 Intract. Discharge?
Design Flow: 5.00D0 MGD
Predicted CL2 Downstream: 86.2364 ug/13 EXISTING/RENEWAL
° a-86-"
m_ 1 Values above 17 ug/1
CL2 Limit.61.ig29,12-19 ug/1, as applicabl
0.030161 mg/1 require permit condit
if no tox. test. Also
limit/dechlor. choice
PROPOSED
Values above 17 ug/1
19 ug/1, as applicabl
require dechlorinatio
CHLORINE ANALYSIS
7Q10: 6.0000 cfs
CL2 Effl. Conc: 0.1530 mg/1 Assm. 0.8 mg/1 ^ no d
AL (17/19 ug/l): 17.0000 ug/1 Chronic/Acute rspctvl
Upstream CL2 Conc.: 0.0000 ug/1 Intract. Discharge?
Design Flow: 5.0000 MGD
Predicted CL2 Downstream: 86.2364 ug/1 EXISTING/RENEWAL
0.086236 mg/1 Values above 17 ug/1
CL2 Limit: 30.16129 ug/1 19 ug/1, as applicabl
0.030161 mg/1 require permit condit
if no tox. test. Also
limit/dechlor. choice
PROPOSED
Values above 17 ug/1
19 ug/1, as applicabl
require dechlorinatio

con2ouire
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,57

TOXICS REVIEW
12/13/89
ver 3.0
Facility: CITY OF NEWTON-CLARK CREEK WWTP
NPDES Permit No.: NC0036196
Status (E, P, or M):
Permitted Flow: 5.00 mgd
Actual Average Flow: 3.66 mgd
Subbasin: '030835
Receiving Stream: CLARK CREEK
Stream Classification:
7010: 6.00 cfs
IWC: 56.4 %
PRETREATMENT DATA EFFLUENT DATA -...
ACTUAL ACTUAL PERMITTED 1 YR 1989 14.
Or Ind. + Ind. + 1 ACTUAL ACTUAL 1
ail
Default ACTUAL Domestic PERMITTED Domestic Maximum Weekly
Standard Acute 1 Removal Allowable Domestic Industrial Total Industrial Total 1 Daily Average 1
Pollutant AI Criteria 1 Eff. Load Load Load Load Load Load Value Value 1L /Alai,
(ug/l) (ug/l) 1 (1/d) (1/d) (1/d) (1/d) (1/d) (1/d) 1 (ug/l) (ug/1)
Cadmium S 2.0 1.79 1 92% 1.57 0.03 0.14 0.17 0.79 0.820 1 22.00
Chromium S 50.0 984 1 95* 62.85 0.07 1.35 1.42 5.84 5.910 1 68.00
Copper AL 7.0 9.2 1 59% 1.07 0.18 6.84 7.02 19.28 19.460 1 150.00
Nickel S 88.0 789 1 76* 23.05 0.07 0.84 0.91 2.47 2.540 1 299.00
Lead S 25.0 34 1 55% 3.49 0.14 0.97 1.11 2.14 2.280 1 25.00
Zinc AL 50.0 65 1 75% 12.57 0.56 3.57 4.13 5.40 5.960 1 100.00
Cyanide S 5.0 22.0 1 59% 0.77 0.06 0.00 0.06 0.68 0.740
Mercury S 0.012 2.4 1 86* 0.01 0.00 0.00 0.00 0.00 0.002
Silver AL 0.060 1.2 1 94% 0.06 0.03 0.00 0.03 0.25 0.280
Selenium S 5.0 20 1 80% 1.57 0.00 0.00 0.00 0.00 0.000
Arsenic S 50.0 360 1 80% 15.71 0.00 0.00 0.00 0.00 0.000
Phenols S NA 1 0.00 0.00 0.00 0.00 0.000
ANALYSIS RESULTS
Monitor / Limit / Special Condition*
Allowable Allowable' Predicted Predicted
Effluent Effluent 1 on ACTUAL on PERMIT.I Actual Actual 1 INSTREAM MONITORING
Bkg 1 Conc. Conc. 1 Influent Influent 1 ACTUAL PERMITTED Daily Max. Wk. Avg. 1 Based on Based on
Pollutant Conc. 1 CHRONIC ACUTE 1 Data Data 1 Influent Influent Effluent Effluent 1 Actual Actual
(ug/l) 1 (ug/l) (ug/l) 1 (ug/l) (ug/l) 1 Loading Loading Data Data 1 Daily Max. Wk. Avg.
Cadmium S 3.548 3.176 0.446 2.150 Limit Limit Limit 161(71--)11-thr
Chromium S 1 88.710 1746.374 1 2.327 9.686 1 Monitor Limit Limit 1 Monitor
Copper AL 1 12.419 16.358 1 94.338 261.514 Monitor Monitor Special 1 Monitor
Nickel S 1 156.129 1399.839 1 7.158 19.981 1 Monitor Limit Limit j Monitor
Lead S 1 44.355 59.932 1 16.372 33.629 1 Limit Limit Limit
Zinc AL 1 88.710 115.394 1 33.842 48.838 1 Monitor Monitor Monitor 1 Monitor
Cyanide S 1 8.871 39.032 1 0.806 9.945 1 Monitor Limit
Mercury S 1 0.021 4.258 1 0.009 0.009 1 Limit Limit
Silver AL 1 0.106 2.182 1 0.059 0.551 1 Monitor Monitor
Selenium S 1 8.871 35.484 1 0.000 0.000
Arsenic $ 1 88.710 638.710 1 0.000 0.000
Phenols S 1 0.000 0.000 1 0.000 0.000

1989 Metals Effluent Data (in mg/1) for Newton -Clark Creek WWTP
No. Values
90 %tile loc.
90 %tile value
Value in ug/1
Allowable conc.
No. >allowable
* Denotes value
Chromium
<0.0120
<0.0120
<0.0120
<0.0250
<0.0250
0.0120
0.0150
0.0180
0.0320
0.0380
0.0450
0.0500
0.0680
0.1770
14.0000
12.6000
0.068
68
88.7
1
Nickel
• <0.0250 *
• <0.0300 *
0.0280
0.0280
0.0390
0.0620
0.0950
0.1000
0.1020
0.1080
0.1120
0.2250
0.2990
0.4200
14.0000
12.6000
0.299
299
156.1
3
below detection limit
Lead
<0.0250
<0.0250
<0.0300
<0.0300
<0.0500
<0.0500
<0.0500
<0.0500
<0.0500
<0.0500
<0.0500
<0.0500
0.0250
0.0280
14.0000
12.6000
0.025
25
44.3
1
Cadmium
• <0.0050
• <0.0050
• <0.0060
• <0.0070
0.0050
0.0080
0.0080
0.0080
0.0100
0.0110
0.0120
0.0150
0.0220
0.0350
614.0000-)
12.6000
0.022
22

1989 Metals Effluent Data (in mg/1) for Newton -Clark Creek WWTP
Date
05/01/89
05/04/89
05/11/89
05/29/89
06/16/89
07/11/89
07/19/89
07/25/89
08/07/89
08/10/89
08/22/89
09/19/89
10/11/89
10/25/89
Chromium
0.0500
0.0680
0.0450
0.0320
0.1770
<0.0120 *
0.0380
<0.0120
<0.0250
<0.0250
<0.0120
0.0120
0.0150
0.0180
Nickel
0.0280
<0.0250
0.1120
0.0280
<0.0300
0.1080
0.2250
0.0620
0.0390
0.2990
0.1000
0.4200
0.0950
0.1020
Lead Cadmium
<0.0500 * 0.0050
* <0.0500 * 0.0080
<0.0500 * <0.0050 *
<0.0500 * <0.0050 *
* <0.0500 * 0.0080
<0.0500 * 0.008
<0.0500 * 0.0100
<0.0500 * 0.015
<0.0300 * <0.0060 *
<0.0300 * 0.0110
<0.0250 * 0.0120
<0.0250 * 0.0350
0.0280 0.0220
0.0250 <0.0070 *
* Denotes value below detection limit

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INSTREAM SELF -MONITORING DATA
MONTHLY AVERAGES
Discharger: AA4,4„,_ehvk. evEL-
Permit No.: NCO() 36/96
Receiving Stream: C/-i Sub -basin: 03(43c
Upstream Location: sx?..i_y Downstream Location sA
Upstream Downstream
DATE TEMP D.O. BOD5 COND TEMP D.O. BOD5 COND
DEC-89
NOV-89
OCT-89 2.1._ 7,0 /s-
SEP-89 11_ .1,2 zo %Lf_
AUG-89 2/ _Si_ 2 Z- 1; f
JUL-89 _,2_4_ '7? z2 7,4
JUN-89 2_0 ___ z.1 7 y
MAY-89 ____ 0v,ir /5" g-r
APR-89 /A ty /.3
MAR-89 9 /di a
FEB-89
JAN-89 _7/ 4 Y
2, 5- /0, 0
DEC-88 6
_ /4), 9 7 /a,6
NOv-88 7,7 9,4 /o,e m
JCT-88 .12,/ .1%.2._ 4A 4 r
SEP-88
AUG-88
JUL-88
JUN-88
MAY-88
APR-88
MAR-88
FEB-88
JAN-88
DEC-87
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OCT-87
SEP-87
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MAR-87
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JAN-86

TOXICS REVIEW
12/04/89
ver 3.0
Facility: CITY OF NEWTON-CLARK CREEK WWTP
NPDES Permit No.: NC0036196
Status (E, P, or M):
Permitted Flow: 5.00 mgd
Actual Average Flow: 3.66 mgd
Subbasin: '030835
Receiving Stream: CLARK CREEK
Stream Classification:
7Q10: 6.00 cfs
rWC: 56.4 4
DA
T A
-=-.... EFFLUENT DATA
IN=
I ACTUAL ACTUAL PERMITTED I I
I or Ind. + Ind. + 1 ACTUAL ACTUAL I
I Default ACTUAL Domestic PERMITTED Domestic 1 Maximum Weekly I
Standard Acute 1 Removal Allowable Domestic Industrial Total Industrial Total 1 Daily Average I
Pollutant AL Criteria 1 Eff. Load Load Load Load Load Load I Value Value I
(ug/1) (ug/1) I 4 WO (WM (4/d) (4/d) (4/d) (i/d) I (ug/1) (ug/1) I
1 1 ------ ..... --- 1
Cadmium S 2.0 1.79 1 92% 1.57 0.03 0.14 0.17 0.79 0.820 1 1
Chromium $ 50.0 984 I 95% 62.85 0.07 1.35 1.42 5.84 5.910 I I
Copper AL 7.0 9.2 I 594 1.07 0.18 6.84 7.02 19.28 19.460 I 0.25 0.15 I
Nickel S 88.0 789 I 764 23.05 0.07 0.84 0.91 2.47 2.540 I I
Lead S 25.0 34 I 55% 3.49 0.14 0.97 1.11 2.14 2.280 1 I
Zinc AL 50.0 65 1 75% 12.57 0.56 3.57 4.13 5.40 5.960 1 0.78 0.10 I
Cyanide S 5.0 22.0 1 59% 0.77 0.06 0.00 0.06 0.68 0.740 I I
Mercury S 0.012 2.4 I 86% 0.01 0.00 0.00 0.00 0.00 0.002 1 I
Silver AL 0.060 1.2 I 94% 0.06 0.03 0.00 0.03 0.25 0.280 1 I
Selenium $ 5.0 20 1 80% 1.57 0.00 0.00 0.00 0.00 0.000 1 I
Arsenic S 50.0 360 I 804 15.71 0.00 0.00 0.00 0.00 0.000 1 I
Phenols S NA I 0.00 0.00 0.00 0.00 0.000 I I
RE
s u T s mm ====== mssasansmisssimessmsassummssissasamatimmassessus
I Monitor / Limit / Special Condition* I
Allowable Allowable' Predicted Predicted 1 I
Effluent Effluent I on ACTUAL on PERMIT.' Actual Actual 1 INSTREAM MONITORING I
Bkg 1 Conc. Conc. 1 Influent Influent 1 ACTUAL PERMITTED Daily Max. Wk. Avg. 1 Based on Based on I
Pollutant Conc. 1 CHRONIC ACUTE 1 Data Data 1 Influent Influent Effluent Effluent I Actual Actual 1
(ug/1) 1 (ug/1) (ug/1) 1 (ug/1) (ug/1) 1 Loading Loading Data Data 1 Daily Max. Wk. Avg. 1
------1------- -------- 1 ----_---- -------- 1 ===== ---- --------- I I
Cadmium S 1 3.548 3.176 I 0.446 2.150 1 Limit Limit 1 I
Chromium S 1 88.710 1746.374 I 2.327 9.686 I Monitor Limit 1 I
Copper AL 1 12.419 16.358 I 94.338 261.514 1 Monitor Monitor Monitor Monitor 1 1
Nickel S 1 156.129 1399.839 1 7.158 19.981 1 Monitor Limit I I
Lead $ 1 44.355 59.932 1 16.372 33.629 1 Limit Limit I I
Zinc AL 1 88.710 115.394 1 33.842 48.838 I Monitor Monitor I I
Cyanide S 1 8.871 39.032 1 0.806 9.945 I Monitor Limit I I
Mercury S I 0.021 4.258 1 0.009 0.009 I Limit Limit I I
Silver AI 1 0.106 2.182 I 0.059 0.551 1 Monitor Monitor I I
Selenium S 1 8.871 35.484 I 0.000 0.000 1 I I
Arsenic $ 1 86.710 638.710 I 0.000 0.000 I I I
Phenols 5 I 0.000 0.000 1 0.000 0.000 1 1 I