NC0043532_Wasteload Allocation_19910108

NPDES DOCUMENT :SCANNING COVER !;MEET
NPDES Permit:
NC0043532
West Stanly / Oakboro WWTP
Document Type:
Permit Issuance
< Vasteload 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:
January 8, 1991
This document is printed on reuse paper - igrnore any
content on the rew-erse side

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0043532
PERMITTEE NAME: Town of Oakboro /
Facility Status: Existing
Permit Status: Modification
Town of Oakboro WWTP
0 730x 16 IO
GarO,)' -
Major Minor
Pipe No.: 001
Design Capacity: 0.500 MGD
Domestic (% of Flow): 40 %
Industrial (% of Flow): 60 %
a�►a�
VYIo r (1.
Comments:
Town of Oakboro is considering changing discharge point to Long
Creek confluence with the Rocky Rocky River. Interested in potential
discharge limits. % flow based on .5 MGD.
RECEIVING STREAM: — $-Gr k ' l'd y etoo
co6Plu.e4ce.J
Class: C
Sub -Basin: 03-07-13
Reference USGS Quad: G 17NE (please attach)
County: Stanly
Regional Office: Mooresville Regional Office
Previous Exp. Date: 8/31/93 Treatment Plant Class: Class II
Classification changes within three miles:
no change within three miles
Requested by: Rosanne Barona Date: 8/17/90
Prepared by: - ' Date: //3l9 /
Reviewed by: !�i 1 . ,-41. Date:
wal>rL - We
Modeler
Date Rec.
#
C 1vA-s
4A - k e.
5 .b 18 IN-
%
Drainage Area(mi2 �. ) 9 (p 5 vg. Streamflow (cfs): ciao
7Q10 (cfs) al Winter 7Q10 (cfs) S ( 30Q2 (cfs) 76,
Toxicity Limits: IWC 2 . (o % Acute�C omc
Instream Monitoring:
Parameters )4, Tewp
Upstream ✓ Location 100 4-, ors irea.+•-
Downstream ✓ Location c ,situ •••,
644 rc.(
end of St? 1(051 r noaresf-P -�
Effluent
Characteristics
BOD3 (mg/1)
30
NH -N (mg/I)
D.O. (mg/1)
no iiMt{-
TSS (mg/1)
30
F. Col. (/100 ml)
d00
pH (SU)
G - i
M&Tn1'cs - G(4ifiy
max • - veil
radmia.k it
eyoultde, AC,
hron*IKm. a G 3
I',.,.ke( 14(73
psi/wing- — CP per/ airLC I Slyer
LeQd 1 3 (
_
Comments: Bobs , AIH3-•)1 (.mcfs Sibs ecf i, e ta,9P. pendir,5
one res4l-E& 154-4te 'Roc..// 4l' ve r autt-L.16 "1)(, (
trItt7if.
itfr
I

•
NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO° 41353 a
PERMITTEE NAME: 1a&n f 00-06ro
Facility Status: x-,s 6
Permit Status:vp.r'c,c-{,'
Major / Minor
Pipe No.: 001
Design Capacity: I . C> M 67
Domestic (% of Flow): 1c
Industrial (% of Flow): 60 ?o
Comments: p eof�bs F a
‘‘f 4, -t 'To/ J j ekan sfo Al
RECEIVING STREAM: -Rocky P. ue r
Class: C
Sub -Basin: 03 - o ? - ! 3
Reference USGS Quad: G. ('7 NE
County: Sf011y
Regional Office: rit RC)
Previous Exp. Date: 213 t l /3
Classification changes within three miles:
Requested by: 4.sartae -korona_
Prepared by:
Reviewed by:
°Dtt = /a?7.S ('sz)
codh
(please attach)
Treatment Plant Class: JC-
Date: g 1
7 O
Date: l/3/?/
Date: t ( 'I(
Modeler
Date Rec.
#
&As
Svi7/to
S11g B
Drainage Area (mil) q6.5 Avg. Streamflow (cfs): qa2 0
7Q10 (cfs) 29 Winter 7Q10 (cfs)_ 30Q2 (cfs)=
Toxicity Limits: IWC 5:1 % Acuterr
Instream Monitoring:
Parameters) Tpcµe Oond, r- e Ce tack/kV--
Upstream ✓ Location boo vest -teal.-
P
Downstream Location 1.7 mites cloaftsivegim-
Effluent
Characteristics
r .r.
Summer
a..... ,- ■ M■ I.yW..M
Winter
BOD5 (mg/1)
30
30
NH 3-N (mg/1)
1 S
vna4i }ter
D.O. (mg/1)
no 114+
no linkf
TSS (mg/1)
30
3 O
F. Col. (/100 ml)
aOD
020 0
pH (SU)
6 i
G ,1
ChltaRe- C ,q i 0
° o ar
° o a T
me i L5 -
wmav)C. 1..cl;a�"r
- `� /
c nac ccwt 11
7
erebtide aco,
(Jt ,ron Ka.. (243
Lead 131
rimming?... - Coppe4 zir=c,Si�.
Q�.
Comments: /4jP3- jArt, /1,) s _s, Iy-CP ctta l
rc-
Iased a►•L �asr l f � A AchyfPit. e,- 6109 c ,022/.

RECEIVED
OWL4:ON OF ENVIROMMENTAL AtAIU401811
PET IA 1990
per,..
Request No.: 5818
WASTELOAD ALOO,N APPROVAL FORM
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad:
Town of Oakboro WWTP
NC0043532
40% Domestic/60% Industrial
Existing/Modification
Rocky River
C
30713
Stanly
Mooresville44
Rosanne Barona
8/17/90
G17NE
Drainage area:
Summer 7Q10:
Winter 7Q10:
Average flow:
30Q2:
RECOMMENDED EFFLUENT LIMITS
Wasteflow (mgd) :
BOD5 (mg/1) :
NH3N (mg/1) :
TSS (mg/1) :
Fecal coliform (#/100m1):
pH (su) :
Chlorine (mg/1):
Toxicity Testing Req.:
965 sq mi
29 cfs
51 cfs
920 cfs
76 cfs
PROPOSED METALS
B,
0.500 1.000
30 30
monitor 15/monitor
30 30
200 200
6-9 6-9
monitor 0.028
2.6% 5.1%
Chronic Quarterly
(ug/1) daily max.
A B
Cadmium
Chromium
Nickel
Lead
Cyanide
Copper
Zinc
Silver
11 11
263 263
463 463
131 131
26 26
monitor monitor
monitor monitor
monitor monitor
MONITORING
PARAMETERS: DO. TEMP, COND, FECAL COLIFORM
Upstream (Y/N): Y Location:100 feet upstream
Downstream (Y/N): Y Location:1.7 miles downstream; end of SR 1659
or nearest accesible point
COMMENTS
Facility having difficulty meeting its toxicity limit at existing site
on Long Creek. Proposes relocating to Rocky River just above Carolina
Solite's discharge. Model predicts existing limits will protect DO standard
A summer ammonia limit (15 mg/1) will be required for toxicity at 1.0 MGD.
BOD5 and NH3-N limits are subject to change pending the results of the
Rocky River QUAL2E model. Keep existing metals limits; facility is in
compliance; these limits near or exceed EPA's acute criteria.
Recommended by:
Reviewed by
Instream Assessment:
Regional Supervisor: pnc
C.! ), s„JA,
Date:
Date: 461410
Date:
\,a))11610
Permits & Engineering: Date: ( /21q
RETURN TO TECHNICAL SUPPORT BY: BAN 08 1991

CONTINUED...
Request No.:
WASTELOAD ALLOCATION APPROVAL FORM
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad:
Town of Oakboro WWTP
NC0043532
40% Domestic/60% Industrial
Existing/Modification
Long Creek
C
30713
Stanly
Mooresville
Rosanne Barona
8/17/90
G17NE
EXISTING EFFLUENT LIMITS
LONG CREEK
Wasteflow (mgd) :
BOD5 (mg/1) :
NH3N (mg/1):
TSS (mg/1) :
Fecal coliform (#/100m1) :
pH (su) •
Chlorine (mg/1):
0.500
30
monitor
30
200
6-9
monitor
Toxicity Testing Req.: 19%
Chronic Quarterly
MONITORING
Drainage area:
Summer 7Q10:
Winter 7Q10:
Average flow:
30Q2:
192.5 sq mi
3.3 cfs
5.8 cfs
183.0 cfs
8.7 cfs
METALS (ug/1) daily max.
Cadmium 11
Chromium 263
Nickel 463
Lead 131
Cyanide 26
Copper monitor
Zinc monitor
Silver monitor
PARAMETERS: DO. TEMP, COND, FECAL COLIFORM
Upstream (Y/N): Y Location:100 feet upstream
Downstream (Y/N): Y Location:SR 1917
(existing data from incorrect location)
COMMENTS
Renewal of existing limits.

10/S9
Facility Name
—1;J,rt £ Dc*.bora
Permit #
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 *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is lq % (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 JAN , P P R J t& , o Cr • . 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.:7Additionally, 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 revertto' • uarterly 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 3-3 cfs
Permited Flow O. MGD
IWC% 1�
Basin & Sub -basin 03 -b7 13
Receiving Stream ,Loa Net k
County s7h1y '� Date
Recommended by:
214/,
_'lP/1' at .1 WrAtra JLi , OCA: ,,_ _ 3";:1I . C'ollditio!1

10/89
Facility Name /own a CaK4ir�
permit : ArC00 y 35 2
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 *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is <27, to % (defined as treatment two in the North Carolina procedure
document). -.The permit holder shall perform guarter1y 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 JR-N, APR, J u c. , pc' . 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` ionitoruig Form (MR-1) for the month in which it was performed, using the parameter
code 3B: 4dditio pall %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 the cited document, such as minimum
control organism survival and appropriate erivironment<tl 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 a l cfs
Permited Flow D. 5 MGD
IWC% ,
Basin & Sub -basin d3 -0 7 - /�
Receiving_Stream Pocky R� v ez &it
County y Date v /o/.2 2/qo
**Chronic Toxicity (Ceriodaphnia) P/F ato?�4%,46 Afd1. 0cr-, See Part 3, Condition .
Recommended by:

%Dier . e (e Cc `.4,-
10/89
Facility Name �7:m. o74411d a,-v Permit # / `DD'Y 5 32.
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 *September 1989) or subsequent versions.
The effluent concentratipn at which there may be no observable inhibition of reproduction or
significant mortality is 0° f % (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 JA J Aff--Out. , o . 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
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chetnicaVphysical 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 :2 9 cfs
Permited Flow 1.0 MGD Recommended by:
IWC% S, 1
Basin & Sub -basin CO —c3' - i 3
Receivin Stream "Aix kt ` ,ver
County nl1/4)
Date /v/.//9c)
**Chronic Toxicity (Ceriodaphnia) P/F atS%,� ,;)Ua ,Oft See Part , Condition

of 0Ct. o,-�
7/6
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fe 40 rc/ . s 71- receh. Wr Cita7get Ai, ? %
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661z (c ?w = U • S 1416. D ) Canno-fee7'"
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Cure d- 7Q105 = 3.3 els c Ave 4-4:,of ety,toc i,5 0
1126b ; lit )6. Wa L)ld I -e J ? °% . fit -7hQ 1proPos.,cl cyr-t Dn (Rocky
414 i&C c.+�/( �e Co "C� 0-5- N1a 7 �,c! £• / 6 o »j
EX/ sn/v6- �„-�
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a.blt ✓ �is fi n e Leeds 07 -7ILd 5 .
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01/01/80 ver 3.1 T OXICS REVIEW
Facility: OAKBORO WWTP
NPDES Permit No.: NC0043532
Status (E, P, or M) : M
Permitted Flow: 0.5 mgd
Actual Average Flow: 0.3 mgd
Subbasin: 030713
Receiving Stream: ROCKY RIVER I PRETREATMENT DATA I----EFLLUENT DATA ----
Stream Classification: C I ACTUAL PERMITTED'
7Q10: 29.0 cfs I Ind. + Ind. + I FREQUENCY
INC: 2.60 % I Domestic PERMITTED Domestic I OBSERVED of Chronic
Stn'd / Bkq I Removal Domestic Act.Ind. Total Industrial Total 1 Eflluent Criteria
Pollutant AL Conc. I Eff. Load Load Load Load Load I Conc. Violations
(ug/l) (ug/l) 1 % (#/d) (#/d) (#/d) (#/d) (#/d) 1 (ug/1) (#vio/#sam)
Cadmium S 2.0 1 92% 0.00 0.01 0.01 0.50 0.500 1 10.0
Chromium S 50.0 1 76% 0.05 0.01 0.06 3.75 3.800 1 25.0 1 I
Copper AL 7.0 1 82% 0.06 0.67 0.73 3.00 3.060 1 492.0 I N
Nickel S 88.0 1 32% 0.02 0.09 0.11 1.25 1.270 1 132.0 I P
Lead S 25.0 1 81% 0.05 0.14 0.19 1.75 1.800 1 100.0 I U
Zinc AL 50.0 I 77% 0.16 0.13 0.29 7.51 7.670 1 160.0 I T
Cyanide S 5.0 1 59% 0.04 0.0 0.04 0.18 0.215 1 24.0
Mercury S 0.012 1 86% 0.00 0.0 0.00 0.00 0.000 1 0.0 I S
Silver AL 0.06 1 94% 0.00 0.0 0.00 0.00 0.000 1 10.0 I E
Selenium S 5.00 1 0% 1 1 C
Arsenic S 50.00 1 0% 1 1 T
Phenols S NA 1 0% 1 20.0 1 I
NH3-N C 1 0% 1 1 0
T.R.Ch1or.AL 17.0 1 0% 1 1 N
Pollutant
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
Effluent Effluent Effluent Instream 1 Recomm'd
Conc. using using Conc. Based on Based on Based on 1 FREQUENCY INSTREAM
Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED 1 Eff. Mon. Monitor.
Load Criteria Influent Influent OBSERVED Influent Influent Effluent 1 based on Recomm'd ?
(#/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data 1 OBSERVED (YES/NO)
Cadmium S 3.98 76.839 0.28 14.06 0.26 Limit Limit ) NCAC NO I A
Chromium S 33.16 1920.968 5.06 320.49 0.65 Limit Monitor 1 NCAC NO I N
Copper AL 6.19 268.935 46.18 193.56 12.81 Monitor Monitor Monitor I Weekly YES I A
Nickel S 20.60 3380.903 26.29 303.48 3.44 Monitor Monitor 1 NCAC NO I L
Lead 5 20.94 960.484 12.69 120.18 2.60 Monitor Limit Limit 1 NCAC NO I Y
Zinc AL 34.60 1920.968 23.44 619.93 4.16 Monitor Monitor Monitor 1 Monthly NO I S
Cyanide S 1.94 192.097 5.76 30.98 0.62 Monitor Limit Limit I NCAC NO 1 I
Mercury S 0.01 0.461 0.00 0.00 0.00 1 NCAC NO I S
Silver AL 0.16 2.305 0.00 0.00 0.26 Monitor 1 Weekly YES
Selenium S 0.80 192.097 0.00 0.00 0.00 1 1 R
Arsenic S 7.96 1920.968 0.00 0.00 0.00 1 1 E
Phenols S 0.000 0.00 0.00 0.52 Limit I NCAC YES 1 S
NH3-N C 0.000 0.00 I 1 U
T.R.Chlor.AL 653.129 0.00 Limit I 1 L
I I T
I I s
C=107� vinrc'( -
W
t) L0^tom

01/01/80 ver 3.1
TOXICS REVIEW
Facility: OAKBORO WWTP
NPDES Permit No.: NC0043532
Status (E, P, or M) : M
Permitted Flow: 1.0 mgd
Actual Average Flow: 0.3 mgd
Subbasin: 030713
Receiving Stream: ROCKY RIVER I PRETREATMENT DATA I----EFLLUENT DATA---- I
Stream Classification: C I ACTUAL PERMITTEDI I
7Q10: 29.0 cfs I Ind. + Ind. + I FREQUENCY I
IWC: 5.07 % I Domestic PERMITTED Domestic I OBSERVED of Chronic)
Stn'd / Bkg 1 Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I
Pollutant AL Conc. 1 Eff. Load Load Load Load Load I Conc. Violations)
(ug/l) (ug/1) 1 % (t/d) (#/d) (#/d) (#/d) (#/d) 1 (ug/1) (#vio/#sam)1
Cadmium S 2.0 1 92% 0.00 0.01 0.01 0.50 0.500 I 10.0
Chromium S 50.0 1 76% 0.05 0.01 0.06 3.75 3.800 1 25.0 1 I
Copper AL 7.0 I 82% 0.06 0.67 0.73 3.00 3.060 1 492.0 1 N
Nickel S 88.0 1 32% 0.02 0.09 0.11 1.25 1.270 1 132.0 1 P
Lead S 25.0 1 81% 0.05 0.14 0.19 1.75 1.800 1 100.0 1 U
Zinc AL 50.0 1 77% 0.16 0.13 0.29 7.51 7.670 1 160.0 1 T
Cyanide S 5.0 1 59% 0.04 0.0 0.04 0.18 0.215 1 24.0
Mercury S 0.012 1 86% 0.00 0.0 0.00 0.00 0.000 1 0.0 1 S
Silver AL 0.06 1 94% 0.00 0.0 0.00 0.00 0.000 I 10.0 I E
Selenium 5 5.00 1 0% 1 I C
Arsenic S 50.00 1 0% 1 I T
---Phenols S _-_NA I 0% 1 20.0 1 I
NH3-N C 1 0% 1 1 0
T.R.Ch1or.AL 17.0 I 0% 1 1 N
Pollutant
ALLOWABLE PRDCT'D PRDCT'D PRDCT'D MONITOR/LIMIT I--ADTN'L RECMMDTN'S--
Effluent Effluent Effluent Instream 1 Recomm'd
Conc. using using Conc. Based on Based on Based on 1 FREQUENCY INSTREAM
Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED 1 Eff. Mon. Monitor.
Load Criteria Influent Influent OBSERVED Influent Influent Effluent 1 based on Recomm'd ?
(#/d) (ug/1) (ug/1) (ug/1) (ug/1) Loading Loading Data 1 OBSERVED (YES/NO)
Cadmium S 1 3.98 39.419 0.28 14.06 0.51 Limit Limit 1 NCAC NO I A
Chromium S 1 33.16 985.484 5.06 320.49 1.27 Limit Monitor 1 NCAC NO ► N
Copper AL 1 6.19 137.968 46.18 193.56 24.96 Monitor Monitor Monitor 1 Weekly YES 1 A
Nickel S 1 20.60 1734.452 26.29 303.48 6.70 Monitor Limit Monitor 1 NCAC NO I L
Lead S 1 20.94 492.742 12.69 120.18 5.07 Monitor Limit Limit 1 NCAC NO I Y
Zinc AL 1 34.60 985.484 23.44 619.93 8.12 Monitor Monitor Monitor 1 Monthly NO 1 S
Cyanide S I 1.94 98.548 5.76 30.98 1.22 Monitor Limit Limit 1 NCAC NO 1 I
Mercury S 1 0.01 0.237 0.00 0.00 0.00 I NCAC NO 1 S
Silver AL 1 0.16 1.183 0.00 0.00 0.51 Monitor 1 Weekly YES
Selenium S 1 0.80 98.548 0.00 0.00 0.00 1 1 R
Arsenic S 1 7.96 985.484 0.00 0.00 0.00 1 1 E
Phenols 5 1 0.000 0.00 0.00 1.01 Limit 1 NCAC YES 1 S
NH3-N C 1 0.000 0.00 1 1 U
T.R.Ch1or.AL 1 335.065 0.00 Limit I 1 L
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I N C D R P D R A T E D
TKE ASSURANCE OF OUAEI�TY/�/J �j
akboro (Town of
.0. Box 610
©akboro, NC 28129
Attn: Mr. Larry Branch
PACE Sample Number:
Date Collected:
Date Received:
Parameter
INORGANIC ANALYSIS
INDIVIDUAL PARAMETERS
Aluminum
Antimony
Arsenic
Fluoride, Total
Oil and Grease
Surfactants
Tin
MDL
ND
REPORT OF LABORATORY ANALYSIS
October 25, 1990
PACE Project
Number: 601003506
92 0536029 92 0536037
10/03/90 10/03/90
10/03/90 10/03/90
WWTP WWTP
Effluent Effluent
Units MDL Composite Grab
ug/L
ug/L
ug/L
mg/L
mg/L
mg/L
ug/L
Method Detection Limit
Not detected at or above the MDL.
10 292
100 ND
5 23
0.1 1.05
1 -
0.03 0.165
100 ND
The data contained in this report were obtained using EPA or other
approved methodologies. All analyses were performed by me or under
my supervision.
•
Charles M. Cabaniss
Manager, Inorganic Chemistry
3.0
1700 University Commercial Place
Charlotte, NC 28213
TEL: [phone]
FAX; 704.597-8455
Offices Serving: Minneapolis, Minnesota
Tampa, Florida
Iowa City, lows
San Francisco. Cetifnrnin
Los Angeles, California
Charlotte, North Carolina
Asheville, North Carolina
Npw Ynrtr Now York
An Equal Opportunity Employer

INSTREAM SELF -MONITORING DATA
MONTHLY AVERAGES
Discharger: Town s( Dokbc o I.vw (3
Receiving Stream: Loo Gruk Sub -basin: b3 -e17 •- i3
Permit No.: NC00
Upstream Location: 6 Downstream Location (,g u c(,c„_ . 2 (3$
Upstream Downstream
DATE TEMP D.O. -gait COND TEMP D.O. COND
DEC-90 PEC__ 41'C-
NOV-90
OCT-90
SEP-90
AUG-90
JUL-90
JUN-90 03 3(, e440
MAY-90 (90' ;, 3 a1,e2 3q3 (531))
APR- 9 0 ___ 85 3 -7a
MAR-90 fy.
FEB-90 —�
JAN-90 j
DEC-89 ? `
NOV-8 9 /� . '/3Y 3'( / 37`/ ,24
`!
OCT-89 17. Y "7, 77 363 17 r a24,6
SEP-89 o?G-a b.9,f 309 3 S' 7S. 7_S _ 8 jf2c9
AUG-893 �lvov� 2 7_ 7 0�c�%��oo
JUL-89 ,�� 5 (,s.s-) 3/9 7js-(vso) as.S ��f� y75����c } .�
JUN-89
MAY-89
APR-89
MAR-89
FEB-89
JAN-89
DEC-88
NOV-88
OCT-88
SEP-88
AUG-88
JUL-88
JUN-88
MAY-88
APR-88
MAR-88
FEB-88
JAN-88
DEC-87
NOV-87
OCT-87
SEP-87
AUG-87
JUL-87
JUN-87
MAY-87
APR-87
MAR-87
FEB-87
JAN-87
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SUMMER
MODEL RESULTS
'Discharger : OAKBORO WWTP
Receiving Stream : ROCKY RIVER
The End D.O. is 6.82 mg/l.
The End CBOD is 4.22 mg/l.
The End NBOD is 4.26 mg/1.
Segment 1
Reach 1
Reach 2
WLA WLA WLA
DO Min CBOD NBOD DO Waste Flow
(mg/1) Milepoint Reach # (mg/1) (mg/ l) (mg/1) (mgd)
6.30 1.70 1 ,
60.00 90.00 0.00 1.00000
0.00 0.00 0.00 0.00000
2

*** MODEL SUMMARY DATA ***
Discharger : OAKBORO WWTP Subbasin : 030713
Receiving Stream : ROCKY RIVER Stream Class: C
'Summer 7Q10 : 20.0 Winter 7Q10 : 510.0
Design Temperature: 26.0
'LENGTH' SLOPE' VELOCITY 1 DEPTH' Kd 1 Kd 1 Ka 1 Ka 1 KN I
I mile I ft/mil fps 1 ft Idesign l @201/2 Idesign ) @201/2 Idesignl
1 1 1 1 1 1 1 1 I
Segment 1 1 1.701 5.781 0.246 1 2.88 10.28 1 0.21 1 1.42 1 1.251 0.48
Reach 1 I I 1 I 1 I I I I
1 1 I I I 1 I I I
Segment 1 1 0.651 15.381 0.326 12.50 10.31 10.24 15.03 I 4.421 0.48
Reach 2 I 1 I 1 1 1 1 1 I
I Flow 1 CBOD 1 NBOD 1 D.O. I
I cfs 1 mg/1 1 mg/1 1 mg/1 I
Segment 1 Reach 1
Waste I 1.550 160.000 1 90.000 I 0.000
Headwaters) 29.000 I 2.000 I 1.000 1 7.300
Tributary 1 0.000 I 2.000 I 1.000 1 7.300
* Runoff I 0.000 I 2.000 I 1.000 1 7.300
Segment 1 Reach 2
Waste I 0.000 I 0.000 I 0.000 I 0.000
Tributary 1 0.000 I 2.000 I 1.000 I 7.300
* Runoff I 0.000 I 2.000 I 1.000 1 7.300
* Runoff flow is in cfs/mile

SUMMER
Seg #
1•
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
I Seg #
Reach # I Seg Mi I D.O. I CBOD I NBOD I Flow I
1 0.00 6.93 4.94 5.52 30.55
1 0.10 6.87 4.91 5.45 30.55
1 0.20 6.82 4.87 5.39 30.55
1 0.30 6.77 4.84 5.32 30.55
1 0.40 6.72 4.81 5.26 30.55
1 0.50 6.68 4.77 5.20 30.55
1 0.60 6.63 4.74 5.14 30.55
1 0.70 6.59 4.71 5.08 30.55
1 0.80 6.55 4.67 5.02 30.55
1 0.90 6.52 4.64 4.96 30.55
1 1.00 6.48 4.61 4.90 30.55
1 1.10 6.45 4.58 4.84 30.55
1 1.20 6.42 4.54 4.79 30.55
1 1.30 6.39 4.51 4.73 30.55
1 1.40 6.37 4.48 4.67 30.55
1 1.50 6.34 4.45 4.62 30.55
1 1.60 6.32 4.42 4.56 30.55
1 1.70 6.30 4.39 4.51 30.55
2 1.70 6.30 4.39 4.51 30.55
2 1.75 6.35 4.37 4.49 30.55
2 1.80 6.40 4.36 4.47 30.55
2 1.85 6.45 4.35 4.45 30.55
2 1.90 6.49 4.34 4.43 30.55
2 1.95 6.54 4.32 4.41 30.55
2 2.00 6.58 4.31 4.39 30.55
2 2.05 6.62 4.30 4.37 30.55
2 2.10 6.65 4.29 4.35 30.55
2 2.15 6.69 4.27 4.33 30.55
2 2.20 6.72 4.26 4.31 30.55
2 2.25 6.76 4.25 4.29 30.55
2 2.30 6.79 4.24 4.28 30.55
2 2.35 6.82 4.22 4.26 30.55
Reach # I Seg Mi I D.O. I CBOD I NBOD I Flow I