NC0020656_Wasteload Allocation_19940920

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0020656
Laurinburg — Leith Creek WWTP
Document Type:
Permit Issuance
M�•
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
201 Facilities Plan
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date:
September 20, 1994
This document is printed oa reuse paper - ignore any
coateat oa the reQerse aide

NPDES WASTE LOAD ALLOCATION
PERMyr NO.: NCO020656
i�d;��irrrdrti,►�T�
FACILITY NAME:
City of Laurinburg
Leith Creek Wastewater Treatment Plant
Facility Status: Existing
Permit Status: Renewal
Major q Minor
Pipe No.: 001
Design Capacity: 4.0 MGD
Domestic (% of Flow): 96%
Industrial (% of Flow): 4 %
Comments:
111161,1 -/l �o �kN At�
(Ve�T ev 41zo 19.1-.
RECEIVING STREAM�Shm Heel Creek
Class: C-Swamp
Sub -Basin: 03-07-55
Reference USGS Quad: H 21 SW (please attach)
County: Scotland
Regional Office: Fayetteville Regional Office
Previous Exp. Date: 12/31/94 Treatment Plant Class: III
Classification changes within three miles: I
No chanee t+ +
1, 73
Requested by: Susan Nilson Date: 6/15/94
Preparedby:--, -- Date: 9a , fk
Reviewed by: �I /i ✓1 /Lt tn
v
3DY I � Z)
Modeler Date Rec. #
�K
Drainage Area (mi2): 83 Average Streamflow (cfs): 95.6
s7Q10 (cfs): 13.8 w7010 (cfs): 24 30Q2 (cfs): 35
Quarterly Chronic (Cehodaphnia) Toxicity Test @ 31 %
February, May, August, November
Instream Monitoring:
Upstream Location: US 74 east
Downstream Location [site #1]:SR 1612
Downstream Location [site #1]:SR 1108
Parameters: temperature, dissolved oxygen,
fecal coliform, conductivity
Special instream monitoring locations or monitoring frequencies:
Upstream and downstream samples shall be grab samples.
Stream samples shall be colldected three times per week during
June, July, August, and September and once per week during the
remaining months of the year.
Monthly Average
Summer Winter
Wastef low (MGD): 4.0
BOD5 (mg/1): 20 20
NH3N (mg/1): 5.0 5.0
DO (mg/1):
5.0
5.0
TSS (mg/I):
30
30
Fecal Col. (/100 ml):
200
200
pH (SU):
6-9
6-9
Residual Chlorine (µg/I):
monitor
monitor
TP (mg/1):
monitor
monitor
TN (mg/1):
monitor
monitor
Copper (µg/1):
monitor
monitor
(monthly)
Zinc (µg/l):
monitor
monitor
(monthly)
Lead (µg/I):
monitor
monitor
(quarterly)
Fluoride (µg/I):
monitor
monitor
(quarterly)
There shall be no discharge of floating
solids or visible foam
in other than trace
amounts.

FACT SHEET FOR WASTELOAD ALLOCATION
Request # 7879
Facility Name:
Laurinburg - Leith Creek Waste Water Treatment Plant
NPDES No.:
NCO020656
Type of Waste:
Domestic - 96 %
Industrial - 4 %
Facility Status:
Existing
Permit Status:
Renewal
Receiving Stream:
�ft Shoe Heel Creek
Stream Classification:
C - Swamp
Subbasin:
03-07-55
County:
Scotland
Stream Characteristic:
Regional Office:
Fayetteville
USGS #
Requestor:
Wilson
Date:
Date of Request:
6 / 16 / 9 4
Drainage Area (mi2):
83
Topo Quad:
H 21 S W
Summer 7Q10 (cfs):
13.8
Winter 7Q10 (cfs):
24
Average Flow (cfs):
95.6
30Q2 (cfs):
35
IWC (%):
31 %
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Not enough data to assess Lead and Fluoride monitoring requirement f GCf &'a5+e c f dA `
No Significant Industrial Users per Pretreatment—�Lca,'p,. �Le(�Se go I ems- rcCOYxyrtnrlu 8r�
Instream monitoring suspect: �J {�Y1"CV.-faKQ Y I �`t�
Upstream:
Downstream site #1:
Downstream site #2:
Temperature
range
7-250C
7-250C
7-190C
Mgcs arc from momhly av gm
Dissolved Oxveen ranee
8.2 - 9.0 mg/1
7.9 - 9.0 mg/1
7.9 - 9.1 mg/1
Special Schedule Requirements and additional comments from Reviewers:
P
Q.e aSs�.c Ps ?Re 7e ygp FR o Hqs [e-mail] s+eP Y42h.<SEE To tt l�- - ^
SI.fSV�wa'r lw5 By £r7 OC SEPr. l� P.4Sua.Tf sw wr cKw oSs f'` E
TAM PL 6015 CokIM�T GPI 1n/+FA'r S
0P*.MW.J �nit�l lorJ 2vCtes/c�
Recommended by:� _
Reviewed by
Instream Assessment:
Regional Supervisor:
Permits & Engineerin
vre�P w,.y r_ ?fact- + •' _ SEP _ 19"I
J� tfut'l"
Z� E�lV. \ �t�?,_e.�...�E.yrV�t
''`""'� 1^//�-T�1P �1YETTEVILLE REG &Fid
on� t"[CaRr+rstlonl.lG A+JYM'/'JG/• _
J
RETURN TO TECHNICAL SUPPORT BY: SEP 2 7 1994

CONVENTIONAL PARAMETERS
Existing Limits:
Monthly Average
Summer
Winter
Wasteflow (MGD):
4.0
Bobs (mg/1):
20
20
NH3N (mg/1):
5.0
5.0
DO (mg/1):
5.0
5.0
TSS (mg/1).
30
30
Fecal Col. (/100 ml):
200
200
pH (SU):
6-9
6-9
Residual Chlorine ,(µg/1):
monitor
monitor
Oil & Grease (mg/1):
nr
nr
TP (mg/1):
monitor
monitor
TN (mg/1):
monitor
monitor
There shall be no discharge
of floating solids or visible foam in other than trace amounts.
Recommended Limits:
Monthly Average
Summer
Winter wQ or EL
Wasteflow (MGD):
4.0
BODs (mg/1):
20
20 wp
NH3N (mg/1):
5.0
5.0 WQ
DO (mg/1):
5.0
5.0 WQ
TSS (mg/1):
30
30
Fecal Col. (/100 ml):
200
200
pH(SU).
6-9
6-9
Residual Chlorine (µg/1):
monitor
monitor
Oil & Grease (mg/1):
nr
nr
TP (mg/1):
monitor
monitor
TN (mg/1): 1
monitor
monitor
There shall be no ,'discharge of floating solids or visible foam in other than trace amounts.
Parameter(s) affected: Limits Changes Due To:
(explanationof any modifications to past modeling analysis including new flows, rates, field data,
interacting dischairges)
(See page 4 for miscellaneous and special conditions, if applicable)

TOMCS/METALS
Type of Toxicity Test: Chronic (Ceriodaphnia) Toxicity Test
Existing Limit: 31 %
Recommended Limit: 31 %
Monitoring Schedule: February, May, August, November
Existing Limits
Daily Max.
COD (mg/):
Cadmium (µg/l):
Chromium (µg/1):
monitor
Quarterly
Copper (µg/1):
monitor
Quarterly
Nickel (µg/1):
monitor
Quarterly
Lead (µgift j
monitor
Quarterly
Zinc (µg/1):
monitor
Quarterly
Cyanide (µg/1):
Fluoride (µg/1):
monitor
Quarterly
Mercury (µg/1):
Silver (µg/l):
Recommended Limits
Daily Max.
COD (mg/):
nr
Cadmium (µg/1):
Chromium (µg/1):
not required
one hit out of 13 data points submitted. All values well below
allowable
(µg/l):
monitor
4:*VCopper
per SOP, continued monitoring required due to high levels in effluent
Nickel (µg/l):
not required
three hits out of 13 data points submitted. All values well below
allowable
Lead (µg/1):
monitor
Quarterly
not enough data submitted to assess requirment
Zinc (µg/1): , monitor q�my per SOP, continued monitoring required due to high levels in effluent
Cyanide (11&4):
Fluoride (µg/1): monitor Quarterly not enough data submitted to assess requirment
Mercury (µg/1):
Silver (µg/l)•
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
x No parameters are water quality limited, but this discharge may affect future allocations.

INST,REAM MONITORING REQUIREMENTS
Upstream, Location: US 74 east
Downstream Location [site #1]: SR 1612
Downstream Location [site #1]: SR 1108
Parameters: temperature, dissolved oxygen, fecal coliform, conductivity
Special instream monitoring locations or monitoring frequencies:
Upstream and downstream samples shall be grab samples. Stream samples shall be collected
three. 'tunes per week during June, July, August, and September and once per week during the
remauung months,of the year.
MISCEI LANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility de, nstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
H no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No '1
N yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
��..• t �r.�C � � `� �...� � � rho.. =t o � . tee, 5�+�.a� er i`ta ra. .ht'c.ng�.
Special Instructions or Conditions
Wasteload sent to EPA? (Major) (Y or N)
(If yes, then attach updated evaluation of facility, including toxics spreadsheet, modeling
analysisif modeled at renewal, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.

Facility Name Laurinburg - Leith Creek WWTP Permit # NC(02W56 Pipe # 001
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 31 %' (defined as treatment two in the North Carolina procedure document). The permit
holder shall perform guar monitoring using this procedure to establish compliance with the permit
condition. The first test will be performed after thirty days from the effective date of this permit daring the
months of Feb., 'May., Aug., and Nov. Effluent sampling for this testing shall be performed at the
NPDES permitted haal 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 Fori (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 asso `ation with the toxicity tests, as well as all dose/response data. Total residual chlorine of
the effluent toxick 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 ert to quarterly in the months specified above.
Should any test d Afrom this monitoring requirement or tests performed by the North Carolina Division of
Environmental M: iagement indicate potential impacts to the receiving stream, this permit may be re -opened
and modified to iriclude 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
1113.8
cfs
Permitted Flow
4.0
M G D
IWC
31
%
Basin & Sub -basin
03-07-55
Receiving Stream
Leith Creek
County
Scotland
QCL P!F Version 9191
Recommended
Farrell Keough.,

Page 1
From:
Date:
Subject:
To:
Note for Farrell Keough
Tom Poe
Aug 12, 1994 4:53 PM
RE: Laurinburg - Leith Creek WWTP
Farrell Keough
I checked with Paul Rawls & Mike Wicker in the FRO. They will re-evaluate the need for
Pretreatment Program for Laurinburg, and get back to me next week. Their last evaluation
indice Lted no SIU's.
REA Magnet Wire and Abbott Labs discharge Ground Water with organics remediated to
BDL values, no metals.
They have had a few tox test failures but from the record it did not appear to be a persistant
problem.
Does the SOP for NON -Pretreatment Programs still include monitoring for Action Level
Metals even though there are no SIU dischargers?
I will Iget back to you next week after I hear from FRO.
From: Farrell Keough on Thu, Aug 11, 199410:47 AM
SubJect: Laurinburg - Leith Creek WWTP
To: Tom Poe
F
NC0020565
I'm sorry this is such short notice, but I need this information ASAP as we are trying to get
the Lumber Basin Permits out this and next week.
11
This facility has a number of Industrial types of dischargers tied onto their plant, (refer list
from application below). Current toxics analysis indicates that the previous monitoring
regwrements for chromium and nickel should be deleted; copper and zinc will be monitored
monthly, (per current SOP) and lead and fluoride will continue to be monitored quarterly as
we did not have enough data to assess them.
What I need to know is, do any of these facilities tied into this plant have the potential for
discharging POC's which should be monitored, (per NPDES Permit) since they have no
Pretreatment program and therefore no future access to this information? POC's for this
facility may not be limited to those above mentioned toxics; please elaborate.
Abbott Laboratories (principally an assembly plant,
Toastmaster - Ingraham Division
REA Magnet Wire Company
Waverly Mills, Incorporated
Eaton Corporation
THANKS
mainly domestic waste)
(clocks and plastic)
(principally domestic waste)
(synthetic yarn, polyester)
(rubber)

Request # 7879
Facility Name:
Laurinburg - Leith Creek Waste Water Treatment Plant
NPDES No.:
NC0020656
Type of Waste:
100 % Domestic
Facility Status:
Existing
Permit Status:
Renewal
Receiving Stream:
Big Shoe Heel Creek
Stream Classification:
C - Swamp
Subbasin:
03-07-55
County:
Scotland
Stream Characteristic:
Regional Office:
Fayetteville
USGS #
Requestor:
Wilson
Date:
1992
Date of Request:
6/16/94
Drainage Area (m12):
83
Topo Quad: �'
H 21 SW
Summer 7010 (ds):
13.8
Winter 7010 (ds):
24
Average Flow (ds):
95.6
30Q2 (ds):
35
IWC (%):
31 %
Existing WLA checked: x
Staff Report: x
Topo checked: x
USGS Flows confirmed: �o C. A�w,u�t
iWC Spreadsheet: x 1a 3
Stream Classification: x
Nutrient Sensitivity: x
Instream Data: x
1976: recommended limits: its: BODS 5.0, NH3-N 2.0, dissolved oxygen 5.0, pH 6 - 9, TSS 30, fecal coliform 200. receiving stream:
Leiths Creek, 0. 0 s 7010, with a design capacity of 2.0 mgd.
1983: no notes exist; expansion and relocation: BOD516.0, NH3-N 6.0, dissolved oxygen 5.0, pH 6 - 9, TSS 30, fecal coliform 1,000.
receiving stream:') Big Shoe Heel Creek, 13.8cfs 7010, with a design capacity of 4.0 mgd.
1987: note attached indicating Original Copy lost: ecommended limits: BODS 20.0, NH3-N 5.0, dissolved oxygen 5.0, pH 6 - 9,
TSS 30, fecal co0?rm 1,000 : discharge was considered to 2.3 % Industrial, therefore monitoring for chromium, nickel, zinc,
and copper as well as Chronic Toxicity Test recommended. receiving stream: Big Shoe Heel Creek, 13.8cfs 7010, with a
design capacity of 4.0 mgd.
1992: reissued w/ samel limits, (200 fecal coliform) and no A in ammonia since previous was fairly stringent and facility was
consistently passing toxicity test. Lead, fluoride, zinc, nickel, and chrome monitoring (quarterly) were recommended.
Memo 1993 added a second instream monitoring location.
* no Significant Industrial sers per Pretreatment
* Lead and fluoride not be g monitored Only
Chromium, copper, nickel and zinc being monitored monthly. Lead and fluoride have only been monitored 2 times
DMR's
BODS and NH3-N levels very low.
Three solids violations in 1�1992 -1993 print-out...1994 data looks very good.
Refer attached for metals data
Instream Monitorina
Upstream:
Temperature range dissolved
7 - 25 ° C
oxygen range
8.2 - 9.0 mg/I
Downstream site #1:
7 - 25 ° C
7.9 - 9.0 mg/I
Downstream site #2:
7.9 - 9.1 mg/I
thly averages
ranges are from monthly
Toxlcit)t Test
fairly good record, failures Iin May, June, and July of 1993,
but consistent passing since then...
PA AWs Note:
no Pretreatment Program, (refer attached)
1�
1991
Cadmium (µg/l):
2
BDL
BDL
Copper (µg/1):
18
BDL
BDL
Cyanide (µg/l):
Lead (µg/l):
BDL
56
BDL
Nickel (µg/l):
BDL
BDL
85
Zinc (µgA):
70
109
57
Chloride (mg/l):
32,000
33,000
34,600
Fluoride (mg/1):
1,100
794
630

Per Aeolication_ but not considered SIU's
Abbott Laboratories
Toastmaster Ingraham Division
REA Magnet Wire Company
Waverly Mills, Incorporated
Eaton Corporation
Wasteflow (MGD):
BODE (mg/l):
NH3N (mg/l):
DO (mg/1):
TSS (mg/l):
Fecal Col. (A 00 ml):
pH (SU):
Residual Chlorine (µg/I):
Oil & Grease (mg/l):
TP (mg/l):
TN (mgA):
Chromium (µg/l):
Nickel (µfill):
Copper (µg/1):
Lead (µfill):
Zinc (µg/l):
Fluoride (µfill):
Upstream Location:
Downstream Location [site 1 ]:
Downstream Location [site 2]:
Parameters:
Monthly Averages
Summer
Winter
4.0
20
20
5
5
5
5
30
30
200
200
6-9
6-9
monitor
monitor
monitor
monitor
monitor
monitor
Principle Constituents
principally an assembly plant, mainly domestic waste
dodos and plastic
principally domestic waste
synthetic yarn, polyester
rubber
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
at least 100' upstream
SR 1612 (Scotland County)
SR 1108 (Robeson County)
temperature, dissolved oxygen, fecal coliform conductivity
WO or EL
Laudnlwrg - Leith Creek Waste Water Treatment Plant NC0020656

date of data
FacWWfiWWm
AFMSa
OW (how) a
70100 (dt)a
1WIC (%) a
Laurinbu - Leith Creek WWTP
MC0020656
4.00 m d
13.80 do
31.0 %
FINAL RESULTS
Chromium
Maximum Value
5.0
Max. Prod Cw
&a
Allowable Cw
161.3
Nate U �d
Copper [AI]
Maximum value
20.0
Max. Prod Cw
40.0
vvv NR6Q- QeY
Allowable Cw
22.6 50P CQeTLyj
Nickel
Maximum
Value
1&0
Max. Prod Cw
Allowable Cw
60.0 �t ��
U&9
Zinc [AQ
Maximum Value
150.0
Max. Prod Cw
300.0
ro+vNttGv . PBX?,
Allowable Cw
161.3
$8P T zart�l
Lead
Maximum value
1.5
Max. Pred Cw
#VALUE!
ENvv1�
Allowable Cw
80•6
dNtA t 0
Fluoride
Maximum Value
880.0
Max. Pred Cw
#VALUE!
Allowable Cw
3606.5
ANtA to q7
Pmameter- Chromium
stand". 50
n
1
2
3
4
5
6
7
6
e
10
11
12
13
14
15
16
17
16
19
2D
21
22
23
24
25
26
BDLa1/2DL
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
5
2.5
2.5
2.5
lO
'if 1/2 DL
•
RESULTS
SW Dev. 0.7
Mean 2.7
C.V. 0.3
Mutt Factor a
1.7
Max. Value
5.0 pA
Max. Prod Cw
8.5 pe
Allowable Cw
161.3 po

date of data
Pier-
Cooper [All
Parameter.
Mckel
Standard.
7
go
Standard.
88
n
BDL-1/2DL
*If 1/2 DL RESULTS
n
BDLo1/2DL
If 1/2 DL RESINS
1
14
Std Dev.
5.8
1
2.5
Std Dev.
&5
2
11
Mean
14.2
2
2.5
Mean
&9
3
16
C.V.
MAI
3
2.5
C.V.
0.9
4
20
4
2.5
'
5
15
5
2.5
'
6
20
Molt Factor
2.0
6
5
Ault Fecbr=
4.0
7
18
Max. Value
20.0 µo
7
2.5
Max. Value
15.0 PO
8
20
Max. Prod Ow
40.0 NgA
8
6
Max. Prod Co
60.0 po
9
15
Allowable Cw
22.6 µo
9
15
Allowable Cw
285.9 µfill
10
5
10
2.5
11
6
11
2.5
'
12
5
12
2.5
'
13
20
13
2.5
'
14
14
15
15
16
16
17
17
18
18
19
19
20
2D
21
21
22
22
23
23
24
24
25
25
28
28

date of data
Parameter-
Zln� [AI]
Parameter-
Lead
Standard-
So
µo
Stwxk ►d-
25
µO
n
1
�1/2DL
10
'ff 1/2 DL RESULTS
Std Dev.
31.8
n
1
BDL=1/2DL
1.5
If 1/2 DL RESULTS
SW Dev. 0.0
2
150
Mean
71.2
2
1.5
Mean 1.5
3
50
C.V.
0.4
3
C.V. &0
4
150
4
5
75
5
6
75
Molt Factor
20
a
Mult Facbr a Na
7
80
Max. Value
150.0 µen
7
Max. Value 1.5 µeA
8
105
Max. Prod Cw
300.0 µen
8
Max. Prod Cw µen
9
80
Allowable Cw
161.3 µen
9
Allowable Cw 60.6 µgn
10
55
10
11
50
11
12
55
12
13
120
13
14
14
15
15
16
16
17
17
18
16
19
19
2D
2D
21
21
22
22
23
23
24
24
25
25
26
26

slate of data
Parameters
Fluoride
Standard s
1800
yo
n
BDLa1/2DL
If 1/2 DL RESULTS
1
370
SW Dev.
360.6
2
880
Mean
625.0
3
C.V.
0.6
4
5
6
Mu/tFactor a
rda
7
Max Value
860.0 po
a
Max Prod Cw
#MM pn
9
Allowable Cw
5806.5 �gA
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

\
\`
TESTING OISELF-MONITORING SUMMARY) TB,, Jul 19,
1994
WHOLE F7.'ryUFN'1'TOXI(7'EY
NOV
DFIC
RF)DU
-
-
:12.'f9'
21.yE'
61./6'
PAC
IAKUWAC'CAMAWWWTP motor C11R I.IM90%
Nm�l'umP:SIN01 J!
_
el --
-
'-
_
-
-
1'F
85.16'
-
>tw'
_
>100'
91.71'
36.6'
W.59-
M.36'
FNL
NC002ISSIMI Dcgln:3/INJ Ihnyue Y: Q 1'➢' A MAR 111N SIT UI!L'
92 4nbS
2615'
35.35-
35.58'
PASS
-
-
PASS
-
-
CouaY:COLUMBUS Reglm:W➢t0 Subbuin:LUM56
9339.M'
-
FAIL
'FNL
PASS
PF:0.4 SP w
94 NfbFAR
FAIL
FAIL
PASS
-
-
-
PASS
bl
7QIO: 0.0 IWC(%):100.0 Odcr
-
_
-
-
-
-
-
M
PASS
PASS
-
_
PASS
-
LAUNI L HILL PAP" CO- IT." CIIR IAM:1.5%
NmComp:SNGIJ:
91 PASS
PASS
-
PASS
PASS
PASS
PASS
_
-
PASS
-
_
PASS
-
NCOOD5041N01 Bcgio:l2/IN3 Faqumcy. Q P/F a F® MAY AUG NOV
B2 -
PASS
-
-
-
_
PASS
_
-
PASS
_
Cawty:RICHMOND Regim: PRO S6WYAD16
w -
PASS
-
-
PASS
PASS
5paid
PF:0.25 0��.
94 -
PASS
-
PASS
-
-
PASS
-
7Qt0: 25.0 IWC(%):1.52
90 _
PASS
-
-
PASS
_
_
_•
PASS
-
_.
FAIL
PASS
'URNBURGWWIP PERM C11R LIM:31%
FIJ1 MAY AUG NOV NvnComP:SNGLC
91 -
PASS
-
-
-
PASS
PAS'
-
_
PASS
-
...
-
PASS
PASS
-
-
NCO020656V01 Bcgm:12J1/97 FneP y: Q P/F A
92 PASS
M
-
��,
{:
PASS
-
Cvmty:5C0'MND Rcgim:FRO Subbuin: LUM55
B3 -
PASS
-
�FAIL'e!f1%uMENm`""
PASS
PF:4.00 5pecid
'AN _
PASS
-
_
PA55
-
PASS
7Q10: 13.90 IWC(%):3L00 Qd<
y m PASS
-
PASS
-
_
PASS
-
-
-
PASS
_
-
FAIL
IAURN➢URG-MAXTON AIRPORT PERM CFA IAMJUN NmCOmP:SNGLE
p1 -
PASS
Ni
-
PASS
LATE
PASS
-
PASS
-
_
PASS
PASS
MAR
NC0044726001 Bcgiv: 11/IN3 Feq : Q P/P A MAR JUN SEP DEC
PASS
PASS
IA
PASS
-
-
PASS
-
-
NIWA55
_
-
Comry:SCO'MND R<Sim: FRO Subbuu: LI1M51
93 _
-
PASS
-
_
PP: 1.00 SP w
F _
-
PASS
-
FA
>Ep
NONE
>BO
NONE
7QI0: 111.0 1WG(%):I.38 ate,
90 502E
11.T
Ni
35.6
BD.D
26.5
-
-
PASS
PASS
LCP PLASTICS LET CHR TAR:99%
FED MAY AUG NOV NonComp:
91 NONE'
-
-
_
PASS
-
_
PASS
-
-
PASS
PASS
_
NCOD36366AA11 Bcgin:2122N1 FratucxY-Q PIP a
ST -
PASS
-
PASS
_
-
NRIP/SS
_
-
Cowry:GUBli)AD Rccgim:WSRO Subbuln:CPFOB
BS -
VAv^5
-
-
PASS
S 1 _
PP: NA Pscie
B4 -
_
-
_
>90
7QID-.O-W IWC(%):100.0 - 0drr.
g0 -
_
>80
_
-
_w
_
PASS
-
_
PASS
C6KdJAUfOSALF- PFAA1 CIBl LP1:12%(GRAB)
B1 -
-
>w
_
_
PASS
_
_
_
PASS
_
_
PASS
LEDBETfEROB.
2NNl Fmquwcy: Q e MAR JUN SEP DEC NvvCvmP:
93 -
-
PASS
-
_
-
.PASS
-
-
PASS
-
-
NT
Cowry: MCDOWOI. ReBim: AAO � Subbeeiv: CID70
co.1y:113N01 S-1-
B3 _
_
PASS
_
-
,PASS
PF:O.OIN sped.,
t>
84 _
-
PASS
7Q10: 1.80 IWC(%):1.2
SO
LF].AND INDUSTRIAL PARK WW7P PERM: 24ID2 PIP AC L➢d 90%POW
NovComP:SNGLE
Bt
NC006S676001 B-&:dl/94 R qu ' Q e MAR JUN SEP DEC
0
.
CouuY:BRUNSWICK RePm:WBlO Subbuin.CPF17
93
.
PF: 0.25 Spedd
B4
PASS
_
-
PASS
7Q10: 600 IWC(%):0.065 aaev
pg8
PA55
-
PASS
-
-
PASS
_
-
PASS
LENOIR.CDYOF-GUNPOWDER CREEK PERM CHR LIM:JB%
91 -
_
PASS
-
-
PASS
PASS
_
_
_
PASS
-
-
PASS
FAiI
NC0023736'001 Begin:IW4N2 -. RMIU W Q P/F A MAR JUN SEP DPC NovComp:SNGIE
92 -
_
FAIL
LATE
PASS
_
PASS
-
-
FAIL
PASS
-
C9uvry: CAIDWEL Rcgtm: ARO Subbum:CTB32
0 _
-
PASS
-
_
PP:LW Shedd
94 PASS
-
PASS
-
PA55
-
_
UTE
PASS
7Q10: 2.90 IWC(%):34.83 tyd�
� _
PASS
_
_ _
PASS
-
-
-
-
PASS
LFNOB!, CRY OF -LOWER CREEK WWTP PERM CHR LIM 40%
NmComP:SNGLE
S1 _
PASS
_
-
PASS
PASS
_
-
FAIL
PASS
-
PASS
-
_
NC00239811001 Bcgin:l/IN3 Frvquwcy. Q PIF a AUG NOV FEB MAY
B2 -
PASS
-
_
_
-
PASS
-
_
PASS -
COwtY:CALDWPL. Rcgion: ARO Subbuin:CIB31
93 -
PASS
-
_
PASS
FAIL
PASS
PF:4.08 Specid -
W-
FAIL
PASS
N3
PASS
_
7Q10: 9.3 IWC(%):10.43 11+tiv
y W PASS
-
-
M
PASS
PASS
-
PASS
_
-
-
PASS
-
LE)UNGTON REGIONAL W WIP PPJtM CUR LIM:56%
NmCvmP'
91 -
PASS
-
-
PASS
PASS
PASS
PASS
-
_
PASS
-
-
PASS
-
_
NC005S)8V)oJ E,&:611/89 Fnqu : Q PIP a FED MAY AUG NOV
B2 -
PASSSIG
-
-
PASS
-
PASS
-
_
PASS
Couay:DAVIDSON Regim:WSRO Subb-'W:YAM
93 _
PASS(.)
-
-
PASS
PASS
PF:530 Spxid
IN_
PASS
-
-
7010-.6.70 IWC(%):55.99
02mvwc'uive fe0uru= eigni6wnt vonmmp0mrc y P. 1990 Deu Avellesk
Monitoring bequevq:QQm°mly:M-MoNNY:BM-➢irrovddY:SA- SemienoudlY: A. Awu-.OW .ApRjUhra Jice6ugin.C-P=C ucd mvnimdv8 RN-b ent:IS-Cmductingindependmt uudy
IJ;GFND' __ OCr NmCvmP=Cumat Come➢enc°Requimmrat
I,ERM=Permit Raryirmma LFr=AdmiNsuuivelsna-Tug+ Frequcoy iurmus mrnmWYupuv sivcl =fdbuc MmtH tW luting man accw-u. JAN.APRJUL.
Ban =Fun mmdi,w,i d ]QIB=Raxivine evcuolow lbw cntcrim (dq A=qquutedy rmn�torinB F!lI
PF=PmmtttrAnvw(MGD) DVC%:ImBenm wale ceamtntim P/F=Pad WI chronic tut AC=Anita C Chtmb SIG =OAC eipnmm oecdcd
P-iJ ; - M''M SW W:1- Ivsctivc, N -Ncw1Y WuedRo muwa); 11- Active ba ea diubuei°e: 7-Mom deu eve0eac [or rmotb io 9°ari°°
Date Naeum:f- Fuhud Miwow: e- Cuiada hl eo.:mv-().BdhdmP: ChV-CNodc value:P-MnrWiry of tread ramwtucnbialrst mvanuedm:u-Pafvrmcd by DFM A°Toe Grmo:a- te+r
Ikpordoe Noretioo:-=Deu rta requimd:NIL -Na mp-wd:()-B<givoivg of QeNa Y 31

I F,77M 517T n.ffl IM- n I ZTA I i I TA i I a �; - �111111 Z [OillIKII a
upstream:
US 74 east
Month
Temp
DO
Saturation
Fecal
Conductivity
May-94
18
8.3
88%
482
34
Apr-94
19
8.2
88%
75.5
35
Mar-94
13
8.4
801YO
306
38
Feb-94
10
8.9
79%
42
36
Jan-94--
7
73% -
--256
-
Deo-93
8
8.9
75%
165
39
Nov-93
12
8.9
83%
87
43
Oct 93
16
9.0
91 %
244
31
Sep-93
22
8.2
94%
428
33
Aug-93
24
8.3
99%
264
32
Jul-93
25
8.3
100%
402
29
Jun-93
23
8.4
98%
263
28
Residual Chlorine
7010 (cfs)
13.8
Design Flow (mgd)
4
Design Flow (cfs)
6.188
Stream SW (µg/i)
17
Upstream bkgrd level (µg/i)
0
IWC (%)
31.0%
Allowable Concentration (µg/i)
54.9
Allowable Owmntrolon (mgA)
0.055
uownstreem:
sR i to z Dna e
Temp
DO
Saturation
Fecal
Conductivity
19
8.2
88%
235
44
19
8.2
88%
79.5
42
13
8.5
81 %
137
42
10
8.9
79%
84
44
76
-45 -
8
8.8
74%
74
44
12
8.7
81 %
99
47
17
8.9
92%
164
48
22
7.9
90%
306
50
24
8.2
97%
278
52
25
8.0
97%
440
52
23
8.2
96%
427
44
Ammonia [2 / 4 mg/Q - Residual Chlorine - Fecal Colifotm
Instream Waste Concentrations
Ammonia as NH3
(summer)
13.8
7010 (cfs)
4
Design Flow (mgd)
6.188
Design Flow (cfs)
1
Stream Std (mg/l)
0.22
Upstream bkgrd level (mg/i)
31.0%
IWC (%)
2.7
Allowable Concentration (mg/1)
Ammonia as NH3
(winter)
24.0
7010 (cfs)
4
Design Flow (mgd)
Fecal Limit 200/100ml 6.188
Design Flow (cfs)
Ratio of 2.2 :1 1.8
Stream Std (mg/l)
0.22
Upstream bkgrd level (mg/1)
20.5%
IWC (%)
7.9
Allowable Concentration (mg/l)

Laurinbura - Leith Creek Waste Water Treatment Plant NCO020858
u mreum:
Month Temp DO
Saturation Fecal Conductivity
May-94
0%
Apr-94
0%
Mar-94
0%
- —Feb-94----
0%--- -- --- - -
Jan-94
096
Deo-93
0%
Nov-93
0%
Oct-93
0%
Sep-93
0%
Aug-93
0%
Jul-93
0%
Jun-93
0%
Downstream:
SR Ilea bridge
Tamp
DO
Saturation
Fecal
Conducihr
19
7.9
85%
428
44
19
8.1
87%
182
46
13
8.4
80%
171
42
10 -
- 8.8
78%
49
47
7
- __ 9.0
74%
81
46
8
8.8
74%
51
45
12
8.7
81 %
128
48
17
9.1
94%
157
45
Ammonia 12 / 4 mg/Q - Residual Chlorine - Fecal Collform
Instreem Waste Concentrations
Ammonia as NH3
Residual Chlorine
(summer)
7010 (cfs)
13.8
13.8
7010 (cfs)
Design Flow (mgd)
4
4
Design Flow (mgd)
Design Flow (cfs)
6.188
6.188
Design Flow (cfs)
Stream SW (µgll)
17
1
Stream SW (mgA)
Upstream bkgrd level (µgin
0
0.22
Upstream bkgrd level (mgA)
IWC (%)
31.0%
31.0%
1WC (9/0)
Allowable Concentration (µgA)
54.9
2.7
Allowable Concentration (mgA)
Nbwabb Conm mtbn (mgM
0.055
Ammonia as NH3
(winter)
24.0
7010 (cfs)
4
Design Flow (mgd)
Fecal IUmB 200/100ml 6.188
Design Flow (cfs)
Raflo of 2.2 :1 1.8
Stream Sid (mgA)
0.22
Upstream bkgrd level (mgA)
20.5%
IWC (%)
7.9
Allowable Concentration (mgA)
0%
0%
0%

LONG TERM MONITORING PLAN REQUEST FORM
IFACILITY: 115 CP-4—
INPDESNO.: NCooGO(ri5(,
IEXPIRATION DATE: (2(3�%h
REGION:
I P&E REQUESTOP,: S. W % -s2&J
I PRETREATMENT CONTACT. Vo :
DATE OF REQUEST:
INDICATE THE STATUS OF PRETREATMENT PROGRAM:
VZ 1) THE FACILITY HAS NO SIU'S AND SHOULD NOT HAVE PRETREATMENT LANGUAGE.
2) THE FACILITY HAS OR IS DEVELOPING A PREATREATMENT PROGRAM.
3) ADDITIONAL CONDITIONS REGARDING THE PRETREATMENT PROGRAM ATTACHED.
PERMITTED FLOW: - G+owc (Je�� �.ed.'.>''D.JLy
% INDUSTRIAL
% DOMESTIC
Pretreatment Unit Staff (Region)
Jeff Poupart (WSRO) Dana Folley (RRO, WaRO)
Tom Poe (FRO, ARO, WiRO) Joe Pearce (MRO)

AEIS Tf LABORATOR14 LAURINBURO. NC
PRE REA MENrOROUNDWATERPERMITNO. NCM2063"WI
INDIRECPDISCIiAROE MON17MRINO REPORT DATA
REPORT DATE: 5119M PAGE I OF I
s IV NJ out -rage grpales, I= of caustratoas of outer pstametem esapt pm
Valves Isu tias Metiod Delecdos IJuit idea to be zero Is ealcslsdaSM coacemindoa and areesp sosaeatndm
<GII s1 M& daddeata tist the parameter wu aot detccted At the lodiated Method Dctecdoa LJait
Dlseiar=c halts are many Muslmvs' par ptetresttacat petnit.
Lhaaasi MIlb or pMWeaac None dada=fib pe dod.
AsBoT I �ArA
JECASMS.MURET'RFAT.W02
F
t

DIVISION OF ENVIRONMENTAL MANAGEMENT
May 5, 1993
TO: Charles Lowe
FROM: Susan A. Wilson
THROUGH: Ruth Swanek 12-�
Carla Sanderson
SUBJECT: City of Laurinburg (NPDES No. NC0020656)
Big Shoe Heel Creek, Lumber River Basin
Scotland County
The Technical Support Branch (TSB) has the following comments with regard to the City
of Laurinburg's inquiry to their proposed permit:
Per 15A NCAC 2B. 0505 (c) (2) (B), the Division may require more than one downstream
sampling point if deemed necessary. The City was required to monitor at SR 1612
(Scotland County) and SR 1108 (Robeson County) in the previous permit as well as in this
proposed permit. The model for Big Shoe Heel Creek indicated a potential for decreased
dissolved oxygen levels near the area of the sampling points, especially at SR 1108. The
City of Laurinburg has never performed instream monitoring at this sampling point,
however, sampling at SR 1612 indicates depressed D.O. levels (in some cases below 3
mg/1).
Because Laurinburg is a 4 MGD plant and constitutes 31 % of the stream, the Division
needs to adequately assess the impact of the discharge on Big Shoe Heel Creek through the
instream monitoring requirements. This data can also be used in the future to confirm
model results should the facility apply for an expansion, or should the entire Big Shoe Heel
Creek area be remodeled.
In conclusion, TSB recommends that both instream monitoring points be retained in the
proposed permit.
cc: Tommy Stevens (Kitty Kramer), FRO

IVISION OF ENVIRONMENTAL MANAGEMENT
04/12/93
NC0020656
City of Laurinburg
Scotland County CCL?
To: Technical Support Branch
A)
From: Charles LoweCCJ-
Permits and Engineering Unit _ C -\\A , j
Please review the attached draft comments from the City of Laurinburg. Do we neeEo require
them to sample at this location?
Thanks
cc: Permit File
0

40
i o ire r
April 2,'��,1993
Coleen Sullins
NPDES Permit Group
Division
siof Environmental Management
P.O. Box ;27687
Raleigh, `N.C. 27611-7687
SUBJECT: (DRAFT PERMIT FOR THE LEITH
PERMIT NO'. NCO020656 - SCOTLAND COUNTY.
Dear Ms. Sullins:
r r • • r r
a:UR'I:Ng:tJiiG
+ r r r r r
'7
OFFICE OF SUPERINTENDENT
WATER & WASTEWATER PLANT
CREEK WASTEWATER PLANT.
After reviewing the draft permit I received from your office, I
found that under A. EFFLUENT LIMITATIONS AND MONITORING
REQUIREMENTS, sampling for downstream will be NCSR-1612 and NCSR-
1108. I do not wish to sample at NCSR-1108 which is located in
Robeson County.
I request that NCSR-1108 be removed from our permit.
If you need additional information, Please call me at 919-277-0214.
Sincerely,
Carl Hegwer Director
Water astewater Plants.
cc. MI. Carles Lowe
Reg j. onal Office
f
i
I R NCAC 2a. 0 05 C.)C
603 LAUCHWOOD DRIVE R.O. BOX L 49 LAURINBURG, N.C. 28352 o 919/277-0214.

instream sprdsht
INSTREAM SELF -MONITORING DATA
MONTHLYAVERAGES
Discharger ' AVApj&U pr
Receiving Stream: 6,4
Upstream Location:
n i -74
DATE =AD m CXYdD FECALCOU
01 /90
02/9C
03/9C
04/9C
05/9C
06/9C
07/9(
08/9(
09/9(
10/9(
11/9(
1 2/91
01/9'
02/9
03/9
04/9
05/9
O6/9
07/9
08/9
09/9
1 0/9
1 1 /9
12/9
01/9
02/9
03/9
04/9
05/9
06/£
07/£
0M
09/4
10/S
11/S
12/i
01P
02/
Q � ;���F7►1L7!
Permit Number: NC.co 2.ob56
Subbasin:
Downstream Location:
m rrwn FFC;AL000
Page 1