NC0020231_Wasteload Allocation_19941025

NPDES DOCYNENT SCANNING COVER SMEET
NPDES Permit:
NCO020231
Louisburg WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Staff Report
201 Facilities Plan
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date:
October 25, 1994
This document im printed oa reu6e paper - ignzore nay
coateat on the reverme aide

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO020231
PERMITTEE NAME. Town of Louisburg
FACILITY NAME: Louisburg W WTP
Facility Status: Existing
Permit Status: Renewal
Major -q Minor
Pipe No.: 001
Design Capacity: 1.5 MGD
Domestic (% of Flow): 95 %
Industrial (% of Flow): 5 %
Comments:
Permitted capacity shall be 1.37 MGD.
RECEIVING STREAM: Tar River
Class: -n t,JS -:!X7 nJSCO
Sub -Basin: 03-03-01
Reference USGS Quad: C25SE, Louisburg (please attach)
County: Franklin
Regional Office: Raleigh Regional Office
Previous Exp. Date: 1/31/95 Treatment Plant Class: III
Classification changes within three miles:
None within 3 mi.
Requested by: Jay Lucas Date: 7/22/94
Prepared by: Date: pay
Reviewed by Date: / �J
Modeler
Date Rec.
#
S�
z 9
938
Drainage Area (mil) 1, 3 % Avg. Streamflow (cfs):
7Q10 (cfs) Jq Winter7Q10 (cfs) 30Q2 (cfs)
Tonicity Limits: IWC 13 % Acute hronic
Instream Monitoring:
Parameters T mA. ✓00 Fc c r IC, mQd.
Upstream Location /001 a bv, n,.l-,&, I�
Downstream v� Location AIC.Sl2, /0)1
Iwi
Monthly Average
Summer
Winter
Wasteflow (MGD):
1.37
1.37
CBOD5 (mg/1):
8.0
16.0
NH3N (mg/1):
3.0
6.0
DO (mg/1):
5.0
5.0
TSS (mg/1):
30
30
Fecal Col. (1100 ml):
200
200
pH (SU):
6.0-9.0
6.0-9.0
Residual Chlorine (µg/1):
28
28
OR & Grease (mg/1):
30
30
TP (mg/1):
monitor
monitor
TN (mg/1):
monitor
monitor
Lead (ug/1):
monitor
monitor
60 (dialy max)
*Note: Residual Chlorine Limit should be left in permit in case
facility uses chlorine as a back-up disinfection system. Permit
should contain language that residual chlorine need only be
monitored when chlorine is in use as a disinfectant.

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(' 90RTH CAROLINA—FRANKLIN CO.
1.5 MINUTE SERIES (TOPOGRAPHIC)
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A. ( ). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NCO020231
During the period beginning on the effective date of the permit and lasting until the monthly average flow exceeds 0.80 MGD, the Permittee is
authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Flow
CBOD, 5 day, 200C"
Total Suspended Residue"
NH3 asN
Dissolved Oxygen'*'
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Chronic Toxicity""
Monthly Avg, Weekly Avg.
0.80 MGD
25.0 mg/I
30.0 mg/I
200.0 /100 ml
37.5 mg/I
45.0 mg/I
400.0 /100 ml
Monitoring Requirements
Measurement SaMR10
.Daily Max Fresty Tvee
Continuous Recording
Daily Composite
Daily
Daily
Daily
Daily
Daily
Daily
Quarterly
Quarterly
Quarterly
Composite
Composite
Grab
Grab
Grab
Grab
Composite
Composite
Composite
*S8mR10
Location
IorE
E, I
E, I
E
E, U, D
E, U, D
E
E,U,D
E
E
E
*Sample locations: E - Effluent; I - Influent, U - Upstream at least 100 feet from discharge point, D - Downstream approximately 5.7 miles
from discharge point. Upstream and downstream samples shall be grab samples. Stream samples shall be collected three times per week
during June,.July, August, and September and once per week during the remaining months of the year.
**The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value
(85%) removal.
***The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/L
****Chronic Toxicity (Ceriodaphnia) P/F at 8%; March, June, September, December; See Part III, Condition F.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
P

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO020231
During the period beginning on the effective date of the permit and lasting until the monthly average flow exceeds 0.80 MGD, the Permittee is
authorized to discharge from outfall(s) serial number 001. (Continued)
jEffiuent Characteristics Discharge Limitations Monitoring Reguirements
Units (sa� ecifyl Measurement SaMR10 *Sample
Monthly Avg. Weekly -Atig. Daily Max Frequer Type Location
Conductivity * Grab U, D

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April I - Octoer 31) Permit No. NCO020231
During the period beginning when the monthly average flow exceeds 0.80 MGD and lasting until expansion of the plant to 1.370 MGD, the
Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as
specified below:
Flow
CBOD, 5 Day, 20 °C''•
Total Suspended Residue'
NH3 as N
Dissolved Oxygen""
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Chronic Toxicity""'
Discharge
Monthly Avg.
Limitations
Weekly Avg.
1.10 MGD
8.0 mg/I,
12.0 mg/1
30.0 mg/l
45.0 mg/I
4.0 mg/I
.6.0 mg/I
200.0 /100 ml 400.0 /100 ml
Monitoring_ Reguirementp
Measurement
Sample
•Sam e
Daily Max Frequency
Tvoe
Location
Continuous
Recording
I or E
Daily
Composite
E, I
Daily
Composite
E, I
Daily
Composite
E
Daily
Grab
E, U, D
Daily
Grab
E, U, D
28.0 ug/I Daily
Grab
E
Daily
Grab
E,U,D
Weekly
Composite
E
Weekly
Composite
E
Quarterly
Composite
E
*Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet from discharge point, D - Downstream approximately 5.7 miles
from discharge point and approximately 7.9 miles from discharge point. Upstream and downstream samples shall be grab samples. Stream
samples shall be collected three times per week during June, July, August, and September and once per week during the remaining months of
the year. .
***The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85
%) removal.
****The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
*****Chronic Toxicity (Ceriodaphnia) P/F at 11%; March, June, September, December; See Part III, Cot:: ° .ion G.
******See Part III, Condition H.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. ,EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1- October 31) Permit No. NCO020231
During the period beginning when the monthly average flow exceeds 0.80 MGD and lasting until expansion of the plant to 1.370 MGD, the
Permittee is authorized to discharge from outfall(s) serial number 001. (Continued)
Pollutant Analysis******
Conductivity
Oil and Grease
Lead
6*
01scharge Limitations Monitoring Requirements
-Units (specifvl --Measurement Sample. *Sample
Monthly Avg: Weekly AM Daily -Max Frequency Type Location
Annually E
* Grab U, D
30.0 mg/l 60.0 mg/l 2/Month Grab E
Morthly Composite E

EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1- March 31) Permit No. NCO020231 .
During the period beginning when the monthly average flow exceeds 0.80 MGD and lasting until expansion of the plant
37 , the
Permitttee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitoredb y thepermittee
specified below: -
Flow
CBOD, 5 Day, 20 °C***
Total Suspended Residue'
NH3 as N
Dissolved Oxygen****
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
f`_hrnnin T0X1city*****
Di,�3L7 herge Limitations
Sample
*S8mRl8
Monthly Ava,
Meekly Alva, Daily Max
_!Measurement
frequency
TyRe
Location
1.10 MGD '
Continuous
Recording
I or E
16.0 mg/I
24.0 mg/I
Daily
Composite
E, 1
30.0 mg/I
45.0 mg/1
Daily
Composite
E, I
8.0 mg/I
12.0 mg/1
Daily
Composite
E
Daily
Grab
E, U, D
200.0 /100 ml
400.0 /100 ml
Daily
Grab
E, U, D
28.0 ug/1
Daily'
Grab
E
Daily
Grab
E,U,D
Weekly
Composite
E
Weekly
Composite
E
Quarterly
Composite
E
*Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet from discharge point, D - Downstream approxunateq 3.-1 mves
from discharge point and approximately 7.9 miles from discharge point. Upstream and downstream samples sha!' the b samples. a months of
samples shall bcollected three times per week during June, July, August, and September and once per week during g
the year.
*** a month! avers a effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85
Th y g
%) removal.
****The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
*****Chronic Toxicity (Ceriodaphnia) P/F at 11%; March, June, September, December; See Part III, Condition G.
******See Part M. Condition H.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the ef! : rent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. LU
), EFFENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1- March 31) Permit No. NCO020231 .
(
During the period beginning when the monthly average flow exceeds 0.80 MGD and lasting until expansion of the plant to 1.370 MGD, the
Permittee is authorized to discharge from outfall(s) serial number 001. (Continued)
Pollutant Analysis******
Conductivity
Oil and Grease
Lead
Discharge Limitation
Units (speciW
Monthly Avg Weekly Avg. Daily Max
30.0 mg/l
60.0 mg/l
Monitoring
Measurement
Fregue cy_ TYR2
Annually
Grab
2/Month Grab
Monthly Composite
*Sample
Location
E
U, D
E
E

UENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1- October 31) Permit No. NCO020231
A. (). EFFL
the rind beginning upon expansion of the plant to 1:370 MGD and lasting until expiration, the Permittee authorized to discharge
During
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Flow
CBOD, 5 Day, 20 °C***
Total Suspended Residue***
NH3 as N
Dissolved Oxygen*"*
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Discharge LIM11011002
Monthly Avg* Weekly Avg.
1.370 MGD
8.0 mg/l
30.0 mg/1
3.0 mg/1
200.01100 ml
12.0 mg/I
45.0 mg/1
4.5 mg/1
400.0 /100 ml
Monitoring Requirements
Measurement e e
pally Max Frequency_ TYRO -
Continuous Recording
Daily Composite
28.0 ug/1
Daily
Daily
Daily
Daily
Daily
Daily
Weekly
Weekly
Composite
Composite
Grab
Grab
Grab
Grab
Composite
Composite
*Sa
Location
IorE
E,I
E,I
E
E, U, D
E,U,D
E
E, U, D
E
E
Total Phosphorus Grab U, D
Conductivity
*Samp le locations: E - Effluent, I - Influent, U - Upstream at least 100 feet from discharge point, D - Downstream approximatelym57Stream
miles
from discharge point and approximately 7.9 miles from discharge point. Upstream and downstream samples shallgsamples.
samples shai
be collected three times per week during June, July, August, and September and once per week during the remaining months of
the year.
*** average effluent BODS and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85
The monthly g
%) removal.
****The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/l.
*****Chronic Toxicity (Ceriodaphnia) P/F at 13%; March, June, September, December; See Part III, Condition J.
******See Part III, Condition H.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored -.ly at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENT'S SUMMER (April 1- October 31) Permit No. NCO020231
During the period beginning upon expansion of the plant to 1.370 MGD and lasting until expiration, the Permittee is authorized to discharge
from outfall(s) serial number 001. (Continued)
Chronic Toxicity*****
Pollutant Analysis******
00 and Grease
Lead
Discharge Limitations
Units (811e2114
Monthly Avg. Weekly Avg. Dail Max
30.0 mg/I 60.0 mg/I
Monitoring
Measurement
Requirements
Sam
*Sample
Frequency.
Type
Location
Quarterly
Composite
E
Annually
E
2/Month
Grab
E
Monthly
Composite
E

EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1- March 31) Permit No. NCO020231 ,
During the period beginning upon expansion of the plant to 1.370 MGD and lasting until expiration, the Permittee is authorized to discharge
from outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Flow
CBOD, 5 Day, 20 cC***
Total Suspended Residue***
NH3 as N
Dissolved Oxygen****
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Conductivity
Qischarae Limitations
Monthly. Avg.
Weekly Avg.
1.370 MGD
16.0 mg/1
24.0 mg/I
30.0 mg/I
45.0 mg/1
6.0 mg/I
9.0 mg/1
200.0 /100 ml 400.0 /100 ml
Monitoring Requirements
Measurement
Sam
le
Daily Max Frequency
,TYRO
Location
Continuous
Recording
I or E
Daily
Composite
E,I
Daily
Composite
E,I
Daily
Composite
E
Daily
Grab
E, U, D
Daily
Grab
E,U,D
28.0 ug/1 Daily
Grab
E
Daily
Grab
E, U, D
Weekly
Composite
E
Weekly
Composite
E
*
Grab
U, D
*Sample locations: E - Effluent, I - Influent, U - Upstream at least 100 feet from discharge point, D - Downstream approximately 5.7 miles
from discharge point and approximately 7.9 miles from discharge point. Upstream and downstream samples shall be grab samples. Stream
samples shall be collected three times per week during June, July, August, and September and once per week during the remaining months of
the year.
***The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15 % of the respective influent value (85
%) removal.
****The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/1.
*****Chronic Toxicity (Ceriodaphnia) P/F at 13%; March, June, September, December, See Part III, Condition J.
******See Part III, Condition H.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

\,
A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November 1- March 31) Permit No. NCO020231 .
During the period beginning upon expansion of the plant to 1.370 MGD and lasting until expiration, the Permittee is authorized to discharge
from outfall(s) serial number 001. (Continued)
Chronic Toxicity***"
Pollutant Analysis******
Oil and Grease
Lead
Discharge Limitations
Units (specify)
Monthly Avg. ' Wee lye
30.0 mg/i 60.0 mg/I
Monitoring- Requirements
Measurement _ _
SamDie
Daily Max Freguencv$
Quarterly
Composite
Annually
2/Month
Grab
Monthly
Composite
*SaMR10
Location
E
E
E
E

GKEX88/MP
07/22/94
COMPLIANCE EVALUATION ANALYSIS REPORT
PAGE 1
PERMIT--NC0020231
PIPE--001
REPORT PERIOD:
9206-9305
LOC ---
E
FACILITY--LOUISBURG
WWTP,
TOWN OF
DESIGN FLOW--
1.3700
CLASS--4
LOCATION--LOUISBURG
REGION/COUNTY--05 FRANKLIN
50050
00310
00530
00610
31616
50060
00300
TGP3B
MONTH
Q/MGD
BOD
RES/TSS
NH3+NH4-
FEC COLI
CHLORINE
DO
CERI7DPF
LIMIT S
1.1000 S
35.00
S 60.0
NOL
F 200.0
NOL
S 5.00
NOL
92/06
.5305
12.40
5.1
5.95
36.1
.994
5.40
92/07
.5340
11.77
5.7
5.31
67.9
.836
5.46
1
92/08
.6417
9.14
12.9
5.98
178.3
.983
5.57
92/09
.5714
9.42
6.3
10.50
235.3F 1.079
5.33F
92/10
.6256
10.40
4.5
11.02
7.3
1.236
5.54
1
92/11
.6515
12.89
12.2
14.02
35.5
1.330
6.21
92/12
.6182
12.71
8.0
9.21
4.8
1.634
7.85
93/01
.6327
16.52
12.4
7.03
3.1
1.530
7.94
93/02
.6403
24.25
12.1
11.07
20.0
1.190
7.39
93/03
.8556
26.52
20.5
11.98
20.9
1.148
7.33
93/04
.7454
34.57
46.2
12.60
5.6
1.240
6.03
1
93/05
.5518
38.45F 34.0
12.07
32.5
1.247
5.47
AVERAGE
.6332
18.25
14.9
9.72
53.9
1.203
6.29
1
MAXIMUM
1.3400
61.00
79.0
23.50
60000.0
3.240
9.30
1
MINIMUM
.0790 LESSTHAN
LESSTHAN
1.10
LESSTHAN
.180
4.60
1
UNIT
MGD
MG/L
MG/L
MG/L
#/100ML
MG/L
MG/L
PASS/FAI

DFS2002 09:16:30 TERMINAL CONNECTED TO IMS IMS
GKEX88/MP
07/22/94
COMPLIANCE EVALUATION
ANALYSIS REPORT
PAGE 1
PERMIT--NC0020231
PIPE--001
REPORT PERIOD:
9306-9405
LOC ---
E
FACILITY--LOUISBURG
WWTP,
TOWN OF
DESIGN FLOW--
1.3700
CLASS--4
LOCATION--LOUISBURG
REGION/COUNTY--05 FRANKLIN
50050
00310
00530
00610
31616
50060
00300
TGP3B
MONTH
Q/MGD
BOD
RES/TSS
NH3-N
FEC COLI
CHLORINE
DO
CERI7DPF
LIMIT S
1.1000 S
35.00
S 60.0
NOL
F 200.0
NOL
S 5.00
NOL
93/06
.5053
17.86
11.5
10.49
53.7
.892
5.98
93/07
.5565
24.52
9.2
11.34
173.5
.887
5.67
1
93/08
.5051
19.54
8.1
11.71
10.6
1.405
5.56
93/09
.5392
26.23
11.7
11.85
16.6
1.712
5.98
93/10
.5035
21.66
12.6
13.38
8.1
1.614
6.28
2
93/11
.4792
24.44
12.2
12.59
7.7
1.375
6.39
1
93/12
.3933
6.56
5.8
3.62
5.9
3.500
9.08
94/01
.3207
5.21
5.9
.33
3.4
.053
9.73
1
94/02
.5701
2.10
2.1
.32
2.2
.018
10.03
94/03
.9737
3.04
4.8
.70
5.0
.026
9.01
94/04
.5281
1.83
1.0
.27
.0
.043
8.00
1
94/05
.4082
2.02
5.3
.35
4.2
.049
7.94
AVERAGE
.5235
12.91
7.5
6.41
24.2
.964
7.47
1
MAXIMUM
3.6270
71.00
35.0
16.87
60000.0
3.800
12.00
2
MINIMUM
.0000
.49
LESSTHAN
.02
LESSTHAN
.000
5.00
1
UNIT
MGD
MG/L
MG/L
MG/L
#/100ML
UG/L
MG/L
PASS/FAI

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Louisburg WWTP
NCO020231
95% Domestic, 5% Industrial
Existing
Renewal
Tar River
WS-V NSW
03-03-01
Franklin
Raleigh
Jay Lucas
7/22/94
C25SE
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Request # 7938
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
Hydro. Area HA5
0208175700
1/16/86
437
14
48
460
13
Second downstream monitoring site should be removed from permit as per recommendation from
RRO. Louisburg has just completed construction of advanced tertiary treatment plant (SOC
expired 7/31/94). New facility is treating to levels better than 511 thusfar. Treatment plant has no
SIUs and is not required to maintain pretreatment program
Schedule Requirements and additional comments from
rr
Reviewed by
Inn t'ream As
I egional St
Permits & E
RETURN TO TECHNICAL SUPPORT BY: OCT 1 9 1994

I —
Existing Limits:
Wasteflow (MGD):
CBODS (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 nil):
pH (SU):
Residual Chlorine (µg/l):
Oil & Grease (mg/l):
TP (mg/1):
TN (mg/1):
Lead (ug/1):
Recommended Limits:
• • -.1. U
Monthly Average
Summer
Winter
1.37
1.37
8.0
16.0
3.0
6.0
5.0
5.0
30
30
200
200
6.0-9.0
6.0-9.0
28
28
30
60
monitor
monitor
monitor
monitor
monitor
monitor
RECOMMEND RENEWAL WITH EXISTING LIMITS.
WQ or EL
WQ
WQ
WQ
EL
EL
EL
(day max q�
*Note: Residual Chlorine Limit should be left in permit in case facility uses chlorine as a back-up
disinfection system. Permit should contain language that residual chlorine need only be monitored
when chlorine is in use as a disinfectant.
Limits Changes Due To: NONE
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
Other (onsite toxicity study, interaction, etc.)
Instream data
New regulations/standards/procedures
New facility information
Parameter(s) Affected
(explanation of any modifications to past modeling analysis including new flows, rates, field data,
interacting discharges)
X 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.
•o
No parameters are water quality limited, but this discharge may affect future allocations.
Type of Toxicity Test:
Existing Limit:
Recommended Limit:
Monitoring Schedule:
TOXICITY TESTING
Chronic (Ceriodaphnial
Quarterly P/F @ 13%
Renew with existing limit.
Mar., Jun., Sept., Dec.

INSTREAM MONITORING REQUIREMENTS
Upstream Location: At least 100' above outfall.
Downstream Location: NCSR #1001 bridge (Approx. 5.7 miles below outfall.)
Parameters: Temperature, Dissolved Oxygen, Fecal Coliform, Conductivity
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility demonstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes ✓ No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes _ No
If yes, please provide a schedule (and basis for that schedule) with the regional
office recommendations:
If no, why not?
x114
ial Instructions or Condition
Louisburg is a member of the Tar/Pamlico Basin Association, so permit should contain appropriate nutri(
reopener language as per Phase H of the NSW Strategy.
Wasteload sent to EPA? (Major) Y (Y or N)
(If yes, then attach updated evaluation of facility, including toxics analysis, modeling analysis if
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 L,01A is Permit # Pipe # oal
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 - % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
au=cdy monitoring using this procedure to establish compliance with the permit condition. The first test will be
performed after t1urty days from the effective date of this permit during the months of
. Effluent sampling for this testing shall be performed at the NPDES
permitted final effi ent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DEM Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in
association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity
sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will
revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Environmental Management indicate potential impacts to the receiving stream, this permit may be re -opened and
modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival and appropriate environmental controls, shall constitute an invalid test and will require immediate
retesting(within 30 days of initial monitoring event). Failure to submit suitable test results will constitute
noncompliance with monitoring requirements.
7Q10 j `7 cfs
Permitted Flow MGD
IWC 13 %
Basin & Sub -basin D3-D
Receiving Stream ;Qy'�
County A.kl�r
Recommended by:
QCL P/F Version 9191

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WHOLE EFFLUFNTTOXICrrY' TESTING 0[SELF-MONTTORNG SUMMARY] Wed,Augl7,1994
FACB.ffY RFAVIRF7dFM YEAR JAN mn MAR APR MAY JIM nn. MIG SEP OCT NOV
PASS
LINVILE LAND IIARBOR LET CHR TAR:7.0% Y
w PAb3
—
—
I--'-
bl
PASS
—
—
—
—
FAIL
PASS
—
NCO0227WWI Begin:d2691 Fegoemy: SA a APR OCT Noncom:
91 PASS
—
—
PASS
—
—
—
—
ABS
—
CovntY:AV�tY Reeion: ARO Svbbuin: CIH30
B2 —
� —
—
—
-_
—
PASS
—
—
—
—
—
FFAIL
LATEUTEPA55
RE: 0.225 SP.1.1
W
—
—
PASS
—
—
7QI047 IWC(%)691
CIIR MONTT:78%(GRAB) TB. IM195; THEN LIM Y
90 FAIL
FAIL
FAIL
FAIL
FAIL
M
M
FAIL
FAIL
FAIL
FAIL
FAIL
FAIL
1-nunuM CORP PERM
NCOM51771001 Bn:VI?J4 FCT leq.v7: Q PIF JAN APR JUL ONonComP:
91 —
FAIL
—
F,13.7
FAIL
FAIL
FAIL
13.7
A.1,FAIL
FAIL
FAIL
FAIL
FAIL
14
4.1,FAIL
FAIL
FAIL
48.0
County:GASTON Region:MRO Subbuim CTB37
92 4.1
FAIL
FAIL
FAIL,4.1%
91.0
FAIL
UTE
FAIL79Dt
NP116.0
35.0
IN
H
AN
3SO
Sgeelal
93 45.0.61.0
61.0
91.0
BB
PF:0.615
" IN
910
510
>100
>100
>Iw
7070027 IWC(%)78 r
M
PASS
bt
PASS
FAIL
M
M
L]TILE HUFF, INCIMORRISTOWN_GROC PERM CHR LIM:90%(GRAB)
N PASS
—
—
PASS
PASS
—
PASS
—
—
PASS
NCO07542&001 Ngi.:71194 Fmpmy: Q P/F A JAN APR JUL OCT NOnCOmpMNGLE
FAIL
PASS
FAIL
PASS
PASS
—
—
CcmmY:PERSON Region: RRO Subbu(n:NEUOI
92 M
B3 PASS
FAIL
PASS
—
PASS
—
—
PS
AS
—
—
isl
PF:0.014 Sid
94 H
PASS
—
PASS
—
—
PASS
7010 00 OVC(96 1000 O'er'
bt
FAIL
FAIL
PASS
PASS
PASS
FAIL
PARTS PERM CIIR 9e (GRAB)
LI"T( II871=1
90 FAIL
bl
PASS
—
—
LATE
PASS
—
PASS
—
—
JAN A
N(1W7IA71A'XII 4gi^: 11/19l InvPmy:Q Pn+ a IAN APR nn. (xT NnnCnmP:SINGIE
MCim
91 PASS
PASS
—
FAIL
PASS
—
FAIL
PASS
—
CPYnty:GRANVILIE Rugion:RRO Svbbuin:l'AR01
92 PASS
—
_
FAIL
PASS
_
FAIL
PASS
—
NRIPASS
—
—
Age M
N PASS
94 PASS
—
—
NILPASS
—
—
PASS
7QI0.U015 adv
7QIP 000 IWC(%) 10000
LTSOUDREYI VS ENERGY CORP. FEW 24HR AC MONK DEIS FTHU (GRAB)
N —
>90
PASSI
PASSU
Pa5512
—
—
—
—
—
—
N00026247No1 Begin:S1192 Fmeaney: 50WLYA NonComP:
9t
—
>01
—
—
—
—
—
—
—
Cmmq,:GUFLP3RD Regim:WSRO Subbuin:CPF08
92 —
93 >t001,a1001
—
—
—
—
—
>fOM,>tp011
>1001,>1001
—
—
—
—
—
PF;SPnial
N 1001
—
—
—
—
—
Q10 NA M'C(%) NA (
7QI
UTS DREYEUS ENERGY CORP. PERM:24 FIR AC MONK EPIS(FTIID) (GRAB)
90 —
—
SPASSIC00219711001
Bcgin:g2192 Emu y: 5 OWDJA 5,771IUNANNUAL No^ComP:
91 —
Pa5S1mimy:JMCKLE4BURG
PASSI—F:VARIES
RCBno:MRO Subbuin:CTOM
r
S2 —
—
—
>1001
>1001,>1t101 >1001Q10000
SpecialBS
IW'C(%)10000
M
M
M
LATE
NONE
61.6
M
M
I.DUISBURG W WTP PERM CIIR LIMB%. 11%0 O.gMOD. I3%0 EXP
90 01.7
69.2
30.8
36.4
M
FAIL
PASS
PASS
NC00202311MI Ngm:l/1192 rmq, : Q PIP a JAN APR JUL OCr NMComP:
91 NONE'
NONE'
NONE'
LATE
FAIL
—
PASS
—
PASS
—
—
Coumy:FRANKLIN Region: RRO Subbuin:TAR01
02 PASS
—
—
FAIL
PASS
PASS
--
—
PASS
—
--
FAIL
PASS
—
PP:O.90 SP 1-1SOC: 21193-IBOI94(11R Q LIMB%Wnl[a
B3 PASS
--
—
NRIPASS
—
—
PASS
7010 1/0 IWC(%) 81
94 PASS
—
—
FAIL
bt
PASS
PASS
LOVROILCOMP. P[I(M CHRLFWM%(GRAD)
W FAIL
PASS
—
PASS
PASS
—
—
LAM
PASS
bt
M
M
NC'00'70191M01 Begin:5f193 Pr q.—": Q PJF a JAN APR JUL OCf NonCOmp:SING R
91 PASS
—
FA
—
—
FAIL
PASS
—
PASS
County:ROCKINGIIAM Reeivn: WSRO Subbuin: ROA03
92 PASS
m FAIL
—
PASS
_
—
L
FAIL
PASS
—
PASS
—
PASS
—
—
PF' 0191 AKcbt
I"he
94 PASS
—
—
Pn55
—
—
PASS
7QItr00 OV((%)1000
BD M
28
>90
>90
>90
NONE
NONE
IAWIL.WWI'P PERM: 48UR AC LIM 74%(DAPii OR CERIO)
12'
37
NONE
z
6
—
NONE
—
NCO0258611001 Begin:9f193 Fng Q A no MAY AUG NOV NonCnmp:SINGIE
91 —
NONE'
—
>I
37
—
M—
C.mmty:GAS1TIN Regiom MRO Subbui. CM35
92
to
_
—
—
>100
—
NlllHl
M
_
T.0
23.78
PF10.60 SPecbt
93 —
50'
M
—
1782'
—
]QIO 1240 IWq%)0]4
PASS
PAS
PASS
PASS
LIIMpI•R'TON WWII' rlJ(M CIIR IJM:11%
y 90 —
N
ASS
PASS
PASS
—
—
PASS
—
—
PASS
—
—
PASS
—
NCO07A571901 Be®n:711187 Fmc, e : Q Pfr AUG NOV M—*B MAY Noncom:
—
PASS
—
—
PASS
—
—
PASS
—
Cmay:ROBESON Region: PRO Subbuin: LUM51
92
82 —
93 —
PASS
PASS
—
_
PASS
—
—
PASS
—
—
PASS
—
PP: IBM Sit-
-
—
PASS
—
7Q10 1290 HVC(%) 1070
0 2crostxvtive fuluns=significant nonwmPlian¢ Y Pro 1990 Dan Avallnble
LEGEND:
PERM=Prnnit Requimmem LET=Adminixtmtim WI. -Tugs Frequency=Manitodng
neeln=Roomooh.muimd ]Q10=Receiving slmani low Raw ctdedon (cfs) A=gvaecdyn
pl'=PesmIlld Row(MGD) IVIC%=lnsrtsmwa on.mnlnuon PIP=Pus/Fula
R,,mmglNotmion::tM=dDM of nquirtd: NRR -Nm siepotted; (A) Beg nn ng of Qumtec 1eFx'llity A
QQm omonthlManlAly:H'N-fulurcnt Month ll,at'iutinBlmuA oceurWlCa.OIAN.ArR.RR OCT NonCom l=Com, Compliance Reg rt:m.nllS Conducting i^depeodmtstudy
em yupnn aingl
lAC=Acute OF =Chronic
4smtcd oemcntmom hi,M m mtmlion: m-Perfumed Iw Dr. Tnx Evd Grouo:N-Bsd bm
I - lotam, N- Newly b.od(Toconsvuct); It - Arrive but notdimharging; t.Momdm wailabk for month in question SIG=ORCsigmw..edd
32

LONG TERM MONITORING PLAN REQUEST FORM
FACILITY: Louisburg WWTP
NPDES NO.: NCO020231
EXPIRATION DATE: 1 /31 /95
REGION: Raleigh
P&E REQUESTOR: Jay Lucas
9qo�4;Lz9I
Pe2rtzEY�
12 R-Cy
PRETREATMENT CONTACT: Dana Folley
DATEOFREQUEST 7/22/94
INDICATE THE STATUS OF PRETREATMENT PROGRAM:
1) THE FACILITY H 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.
:RMRTED FLOW:
INDUSTRIAL 5
DOMESTIC 95
Pretreatment Unit Staff (Region)
Poupart (WSRO) Dana Folley (RRO WaRO
Poe (FRO, ARO, WiRO) Joe Pearce (MRO)

DATE REQUEST No., 9;R�
USGS Flow Data Request
Requested by:' Y 5�
SITE No. 1 County -River Basin �� ���..�►t�
NRCD Sub Basin �� Map No. or Name �� s b �+ j
• c- 4a°'Yl Secondary or Primary Road No. A1,�r °1
Station No.n y
Stream Name kllv e-- -
Data RequestQ
ed= Drainage Area ` Average Flow 30 0 2 =
Winter 7 Q 10 -- v- Summer 7 010 _✓
SIT 0. 2
County -
River Basin
NRCD Sub Basin
-
Map No. or Name
v
S totion No.
Secondary or Primary Road No.
c
a
Stream Nome
n
�a to Requested:
Drainage Area .�
Average F i ow - 50 0 2 --
E
go
Winter TO 10 ._--
Summer 7 010
N
7
Cr
C
r
I
III
N
o
SITE No. 3'
County
River Basin
4
a
o
°
NRCD Sub Basin
-
Mop No. or Name
,s
Station No.
Secondary or Primary Road
CM
wc
Stream Name
L
Data Requested
Drainage Area.._______
w Average Flo30 Q 2.-
Winter 7 Q 10
Summer 7 0
10...�
a,
r
0

MEN
WO
l INNNI
1 ~l - ►. r -
an

r
REQUEST NO: 9267 SITE NO: 1 DATE: 10/ 5/94
SOURCE: NRCD ACTION: EXISTING
STATION NUMBER: 0208174700 TYPE STATION: 01
STATION NAME: TAR R AT US 401 AT LOUISBURG, NC
LOCATION: AT US 401 AND 0.5 MI SE OF LOUISBURG, NC
LATITUDE: 360534 LONGITUDE: 781748
QUADRANGLE NUMBER: C25SE
COUNTY CODE: 069 STATE CODE: 37 DISTRICT CODE: 37
HYDROLOGIC UNIT CODE: 03020101 NRCD BASIN CODE: 030301
DRAINAGE AREA: 427.00 SQ MI
AVERAGE FLOW: 442.0 [A]
7Q10 MIN FLOW: 10.29 [A]
( SUMMER)
30Q2 MIN FLOW: 37.64 [A]
7Q10 MIN FLOW: 40.21 [A]
(WINTER)
7Q2 MIN FLOW: 24.55 [A]
NOTES:
[A] Estimate is based on records collected at or near the site.
[B] Estimate is based entirely on runoff observed at nearby streams.
[C] Estimate based on procedures given in Open -File Report 90-399
"Low -Flow Characteristics of Streams In North Carolina"
[D] Estimate based on procedures given in Open -File Report 90-399 and
in conjuction with records collected at or near the site.
***** These data are provisional pending approval by the Director,USGS ******
REMARKS:
REQUESTOR - JASON DOLL, DEN, W-Q SECTION
Entered by. JCW
Fee charged: 0

SOC Priority Project Yes
No XXX
To: Permits and Engineering Unit
Water Quality Section -pte
Attention: Jay Lucas
t Date July 22, 1994 ,`,U ? r ,
NPDES STAFF REPORT AND RECOMMENDATION
County Franklin _„
Permit No. NC0020231 RENEWAL
PART I - GENERAL INFORMATION
1. Facility and Address: Town of Louisburg
Tar River Water Reclamation Facility
110 West Nash Street
Louisburg, NC 27549
2. Date of Investigation: July 20, 1994
3. Report Prepared by: Ted Cashion, Environmental Chemist I
4. Persons Contacted and Telephone Number:
Tony Arnold, Superintendent
919-496-2677
5. Directions to Site: From Raleigh: U.S. 401 North to
Louisburg. Turn right onto N.C. 56 East. Go 0.4 miles,
turn right onto Waste Treatment Plant road and proceed to
end of road.
6. Discharge Point(s), List for all discharge points:
Latitude: 36005'12" Longitude: 78017'32"
Attach a USGS map extract and indicate treatment facility
site and discharge point on map.
U.S.G.S. Quad No. C25SE U.S.G.S. Quad Name Louisburg, NC
7. Site size and expansion area consistent with application ?
XXXX Yes No If No, explain:
B. Topography (relationship to flood plain included): Plant
appears to be located out of floodplain.
9.
Location
of nearest
dwelling:
Approximately
1/4 mile.
10.
Receiving
stream or
affected
surface waters:
Tar River

a. Classification: WS-V NSW
b. River Basin and Subbasin No.: 03:03:01
C. Describe receiving stream features and pertinent
downstream uses: Water supply for Rocky Mount and
Tarboro.
CART II, - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
k
1. a. Volume of Wastewater to be permitted: MGD(Ultimate
Design Capacity) 1.37 MGD
b. What is the current permitted capacity of the Waste
Water Treatment facility? 1.37 MGD
C. Actual treatment capacity of the current facility
(current design capacity)? 1.37 MGD
d.' Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: ATC issued June 1992 for expansion to 1.37 MGD.
e. Please provide a description of existing or
substantially constructed wastewater treatment
facilities: aerated grit/grease removal, anaerobic
selector, dual oxidation ditches (BioDeNioPho Process),
dual secondary clarifiers, 3 cell tertiary filter,
ultraviolet disinfection, sludge thickener, aerobic
digester, and ultrasonic flow meter.
f. Please provide a description of proposed wastewater
treatment facilities: NA
g. Possible toxic impacts to surface waters: NH3-N appears
to be the only possible toxic component but this
parameter is not expected to occur in any appreciable
concentrations from this advanced WWTP.
h. Pretreatment Program (POTWs only):
in development
approved
should be required
not needed XXXXX
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
permit no. WQ0005981
Residuals Contractor- Granville Farms
Telephone No. 919-693-3253
b. Residuals stabilization: PSRP XXXX
PFRP Other

c. Landfill:
d.!I Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating
sheet): Class IV - 77 points
4. SIC Code(s): 4952
Wastewater Code(s) of actual wastewater, not particular
facilities i.e.., non -contact cooling water discharge from a
metal plating company would be 14, not 56.
Primary 01 Secondary --
Main Treatment Unit Code: 107-3
PART III - OTHER PERTINENT INFORMATION
1. Is'this facility being constructed with Construction Grant
Funds or are any public monies involved. (municipals only)? Yes
2. Special monitoring or limitations (including toxicity)
requests: Since -the facility receives no industrial wastes and
does not need a pretreatment program, no metals monitoring is
recommended for this facility.
3. Important SOC, JOC or Compliance Schedule dates: (Please
indicate) Date
Submission of Plans and Specifications Sept. 30, 1991
Begin Construction Jan. 31, 1993
Complete Construction April 30, 1994
Attain compliance w/final limits - July 31, 1994
4. Alternative Analysis Evaluation: Has the facility evaluated
all'' of the non -discharge options available. Please provide
regional perspective for each option evaluated.
Spray Irrigation: NA
Connection to Regional Sewer System: NA
Subsurface: NA
Other disposal options: NA
5. Oth',er Special Items: See evaluations and recommendations.
PART IV ii- EVALUATION AND RECOMMENDATIONS
We have reviewed the submitted application and performed a site
inspection. The Town has been under SOC for expansion to 1.37
MGD, and will go under final limits effective August 1, 1994. No
industrial wastes are discharged to this facility; we recommend
that the permit not contain monitoring for metals. The Town has

submitted tox results of "pass" for 9 of the last 10 tests. The
application lists the design flow as 1.5 MGD; this should be 1.37
MGD, the expansion design approved by the Division. The current
permit also contains 2 downstream sampling locations. We
recommend that these locations be reviewed to determine if 1
location can be deleted, thereby saving this small Town some lab
costs.
i
We recommend that the permit be reissued in accordance with the
basinwide plan, with parameters and frequencies associated with a
Class IV, domestic wastestream, municipality.
Signature of report preparer
I.
Water Quali y Rqqional Supervisor
Da

RATING SCALE • FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: v,fj!/r I`ve.#- +-r/< � e i k6'n4-x� oy �`clC,`
Owner or Contact Person: L vc �y All<< or
,Mailing -Address: 110 "Ves-t �ejr4 $I
County: /-Ylq"IcU Telephone: g11i
Present Classification_ C/tjJf 4-5-E—F .3L New Facility Existing Facility_
r NPDES Per. No. NC00 dao? 3 Nondisc. Per. No.WQ Health Dept.Per No.�
Rated by: _I 6,r4 s4cis Telephone: 5-;?1- Date: 9 ;q 1
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: oilr „��� Grade: Telephone: 1f'
Check Class lfication(s): Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One) I ll iII IV Total Points:_ 7
SUBSURFACE CLASSIFICATION
SPRAY IRRIGATION CLASSIFiCATrON
(check all units that apply)
(check all units that apply)
1` septic tanks
1.
preliminary treatment (definition no. 32 )
2. pump tanks
2.
lagoons
3. siphon or pump -dosing systems
3.
septic tanks
4. sand filters
4.
pump tanks
5. grease trapfinterceptor
5.
pumps
6_ oil/water separators
6.
sand filters
7. gravity subsurface treatment and disposal:
7.
grease trapinterceptor
8. pressure subsurface treatment and disposal:
8.
oil/water separators
9_
disinfection
10.
chemical addition for nutrient/algae control
11.
spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater in excess of these components shal••
be rated using the point rating system and will require an operator with. an appropriate dual certification
LAND APPLICATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. _Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CLASSIFICATION
The following systems shall be !assigned a Class I classification, unless the flow is of a significant quantity or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check if Appropriate)
1. OiVwater Separator Systems consisting only of physical separation, pumps and disposal;
2. Seplic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -loop Recycle I Systems;
5. Groundwater Remedlation Systems consisting only of oil/water separators, pumps, air -stripping, carbon adsorption, disinfection
and dispos,-A;
6. Aquaculture operations with discharge to surface waters;
7. Water Plant sludge handling and back -wash water treatment;
B. Sealood processing consisting of screening and disposal.
19. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified it permitted after July 1,
1993 or if upon inspection by the Division, it is found [hat the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, in writing.

The following
scale is
used for rating wastewater treatment facilities: (circle appropriate points
rr.EM POINTS
(1)
Industrial Pretreatment Units or Industrial Pretreatment Program (see definition No. 33)...................................................4
(2)
DESIGN FLOW OF PLANT IN gpd (rat applicable to nort•oontaminated cooling waters, sludge handling facilities for
water purification plants, totally closed cycle systems(see,definition No. 11). and facilities consisting only of hem
(4)(d) or Items. (4)(d) and (11)(d))
0 - 20.000................................................................................................................................................1
20.001 - 50.000..................................................................................................... ..........................2
S0.001 - 100.000....................................................................................................................................3
100.001 - 250.000...................................................................................................................................4
250.001 - 500.000...............................».................................................................................................5
.
500.001 - 1.000.000............................ ..-........... ».................................................................................. 8
1.000.001 - 2.000.000..-----•................................................................................................................. t o
00 2.0.001 (and up) rate i point additional for each 200.000 gpd" capacity up to a maximum of 711
Design Flow (gpd)
(3)
PRELIMINARY UNrrS/PROCESSES (see defirAlon No.32)
(a)
BarScreens...................... .............. ........................................................................................................
(b)
or
Mechanical Screens, Static Screens or Comminuting Devices....................................................................
(c)
Grit Removal..........................................................................................................................................
•
(d)
or
Mechanical "Aerated Grit Removal ........................................................................ ................................. 40
'
(e)
Flow Measuring Device ............................. .................................................................................................. 1
(f)
or ^
Instrumented Flow Measurement..............................................................................................................�J
tg)
Preaeration.....................».......................................................................................................................2
(h)
Influent Flow Equatization.».- ............................................................................................................ 2
:
(i)
Grease or Oil Separators Gravity...... ..»................ ................................................................................... 2
Mechanical..................................................».................................................................................3
DissolvedAir Flotation................................................................................................................................8
•
t))
Prechlorination. .............................._..............................................................................................5
(4)
PRIMARYTREATMENr UNITSIPROCESSES
(a)
Septic Tank (see definition No. 43)............ ......... ».................................. _............................................... 2
(b)
Imhoff Tank........».................................................................................................................................5
(c)
.............................-...............................................................................6
Primary Clarifiers......... ... �
-
(d)
Settling Ponds or Settling Tanks for Inorganic Non•toxicMaterials (sludge handling facilities for water
purification plants, sand. gravel, stone, and other mining operations except recreational activities such as gem
orgold mining)........... ....................... ................................................................................................... 2
(5)
SE00NDARY7REAlMENTLNnWROCESSES
(a)
Carbonaceous Stage
(i) Aeration -High Purity Oxygen System...............................................................................20
•
DiffusedAir System.................................................................................................10
Mechanical Air System (fixed, floating or rotor).............................................................
SeparateSludge Reaeradon........................................................................................... .�
(if) Trickling Filter
-
High Rate.....................................................................................................................7
'
Standard Rate ........................................... ,....................................................................
PackedTower.. ..... ...... ...............................................................5
Biological Aerated Fitter or Aerated Biological Fitter............................................................10
(iv) Aerated Lagoons ......................................................................................................... 10
(v) Rotating Biological Contactors ... ............................................................................10
(vi) Sand Filters -intermittent biological..................................................................................2
Recirculatingbiological....................................................................................................2
(vi!) Stabilization Lagoons.................................................................................................. 5
Clarifier 5
(viri) ..................................................................................................................
(ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal lob
nitrification (see definition No. 12)(Points for this hem have to be in addition to hems
:
- (5)(a)(1) through (5)(a)(viil).
utilizing the extended aeration process (see definition No.3a)........................................
utilizingother than the extended aeration process............................................................8
(x) Nutrient additions to enhance 8O0 removal......................................................................5
(xl) Biological Culture ('Super Bugs')addillon........................................................................5
(b)
Nitrogenous Stage
(1) Aeration High Purity Oxygen System.............................................................................20
DiffusedAir System ........................... ...........................................................................10
..
'
Mechanical Air System (fixed, floating or rotor)..................................................................8
SeparateSludge Reaeration............................................................................................3
(it) Trickling Filter -High Rate...................................................................................................7
StandardRate...............................................................................................................5
PackedTower ........................ .......................................................................................5
(fit) Biological Aerated Filter or Aerated Biological Filter .............................................................10
(iv) Rotating Biological Contactors ......................................................................................10
(y) Sand Filter - Intermittent blotogical...................................................................................2
Recirculatingbiological.....................................................................................................3
„
(vi) Clarifiier.........................................................................................................................5
(8)
TERTIARY OR ADVANCED TREATMENT LINT S'PROCESSES
(a)
Activated Carbon Beds
withoutcarbon regeneration...................................................................................................5
withcarbon regeneration.......................................................................................................
(b)
Powdered or Granular Activated Carbon Food-
Mihoutcarbon regeneration.................................................................................................
withcarbon regeneration...................................................................................................... 5
(c)
Air stripping..............................................................................................................................................5
-
(d)
Donildlic-olon Process..............................................................................................................................10
(e)
Elecirodialysis.............................................................................................................................................5
(1)
Foam Separation.....................................................................................................:..................................5
(9)
Ion Exchange............................................................................................................................................5
(h)
Land Application of Troatod Effluent (soe do:iM.Ion No. 225) (not applicable for sand, gravel, clone
and olhor similar mining oporaiions) b; high rateinfiltration ..........................................................................4
(i)
Microscroons.......................................................................................................................................
(1)
Phosphorous Rorroval by Biological Procossos (Soo drriinitlon No.26)..................................................... 0
(k)
Polishing Ponds - without aoralion........................................................................................................
Williaoration..................................................................................................................5

Post Aeration - cascade
(i}
............................................................................................................................0
mechanical
(m)
oillusedor ........................................................................................................2
Reverse Osmosis.......... ..............................................................................................................................5
{n)Sand
or Mixod•Media Filters . low rate........................................................................................................455)
highrate...................................................................(o)
(p)
Treatment processes for removal of metal or cyanide ................................................................................
treatment processes for removal of toxic materials other than metal or cyanide..............................................1 5
(7)
SLUDGETREAWENT
(a)
Sludge Digestion Tank . Heated (anaerobic)...............................................................................................10
Aerobic.......................................................................................................................................... 1.
Unheated(anaerobic)...............................................................................................................................
( b)
.Sludge Stabilization (chemical or thermal)...................................................................................................5
(c)
Sludge Drying Beds = Gravity....................................................................................................................:..2
VacuumAssisted......................................................................................................................................5
(d)
Sludge Eluldation.....................................................................................................................................
(e)
Sludge Conditioner (chemical or thermal)....................................................................0...................... .. 49
(I)
Slud o Thickener (gravity)_......•
(
Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(1))..... ....................................................... 8
) h
Sludge Gas Utilization (including gas storage).............................................................................................
f
[
(1)
Sludge Holding Tank - Aerated...................................................................................................................5
{ J)
Non -aerated .._•....................................................................................2
Sludge Incinerator (notlndudnng activated carbon regeneration)................................0............................10
(k)
Vacuum Finer, Centrifuge. or Filter Press or other simltar dewatering devices...................................................10
(8)
RESIDUALS UTILIZATION/DISPOSAL (including Incinerated ash)
(a)
Lagoons.... ..............................................................................................................................................2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to -a land application operator or landfill operator who holds the land application permit
(c)
orlandfill permit........................................................................................................................................2
Dedicated Landfill(burial) by the permittee of the wastewater treatment facility..............................................5
(9)
Dt`}t�z�il0
(a
Chlorination..............................................................................................................................................5
(b)
Dechlodnalion......... .................... .............................. ....... .......................................... ........ .......................
(c)
Ozone.......................................................................................................................................................5
............................................. 5
0 0)
(d) Radiation ...................... . ........ ............................... ...........................
CHEMICAL ADDITION SYSTEM(S) ( see definition No. 9)(not applicable to chemical addillons rated as hem (3)(1).
(5)(a)(A), (6)(a). (6)(b). (7)(b), (7)(e). (9a), (9)(b) or (9)(c) 6 points each:
List
...................................................................................................................................5
...
................................................. 0.....................5
.................................................................................................................................... 5
(11)
MI.SC1 u.ANECUS Ui,7WROCESSES�
(a) Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials Including wastes from mining
operations containing nitrogen or phosphorus compounds In amounts significantly greater than is common
(b)
fordomestic wastewater.........................................................................................................................4
Effluent Flow Equalization (not applicable to storage basins which are inherent In land application systems) ...... 2
(c)
(d)
Stage Discharge (not applicable to storage basins Inherent in land application systems) ..................................
Pumps. ...... ........................................................................................................................... 3
(e)
Stand -By Power Supply........................................................................................................................ 3
(1)
Thermal Pollution Control Device......................................................................................................... .3
TOTALPOINTS..........................................................................—
ClassI ... .................................................................................................5-25 Points
Glass11..............................................................................:..........................26.50 Points
..................................................................:.................................51.65 Points
TIES9tV ..s6•Up Points
----------------------------------------------------------
Facilities hewing a rating of one through four points. Inclusive, do not require a certified operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class Ill.
---------------------------------------------------------
.0004 DEFINITIONS
The following definitions shall apply throughout this Subchapler.
(1) Activated Carbon Beds. A physical/chemical method for reducing soluble organic material from wastewater effluent; The column -type beds used in this
method will have a flow rate varying from two to eight gallons per minute per square toot and may be ehher upflow or downfiow carbon beds. Carbon may c
may not be regenerated on llhe wastewater treatment plant site;
(2) Aerated Lagoons. A basin in which all solids are maintained In suspension and by which biological oxidation or organic mazer is reduced through artificial!
accelerated transfer of oxygen on a flow -through basis;
(3) Aeration. A process of bringing about intimate contact between air or high purity oxygen In a liquid by spraying, agitation or diffusion;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of to hours.
(4) Agriculluratly managed site. Any site on which a crop Is produced, managed. and harvested (Crop Includes grasses. grains, trees, etc.);
(5) Air Stripping. A process by which the ammordum ion Is first converted to dissolved ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other srrrlSzr processes which remove petroleum products such as benzene, toluene, and xylene;
(6) Carbon (Regeneration The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize
absorbed tpurities;
(7) Carboceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits;
(8) Centrifuge. A mechanical device In which centrifugal force is used to separate solids from liquids or to separate liquids of deferent denshipes;
(9) Chemical Addition Systems- The addition of chemical(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment,
alkalinity control, etc.; the capability to experiment with different chemicals and different application points to achieve a specific resuh will bo considered one
system; the capability to add chemicals) to dual units will be rated as one system; capability to add a chemical at a dilletent application points for different
purposes will result in the systems being rated as separate systems;
(10) Chem cal Sludge Conditioning. The addition of a chemical compound such as time, ferric chloride, or a polymer to wet sludge to coalesce the mass prior
€ts applicat€ n to a dewalering device;
(11) Clos&j Cycle Systems. Uso of holding ponds or holding larks for contalnmorit of wastewater containing inorganic, non•toxlc materials from sand, grati•-
crushod siono or otter similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;
(12) Combined Romoval of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A single stage system required to ach;:)ve permit efftuant limits on B1-
and amrrmnia nitrogen within rho same biological reactor,
(13) Dacfd-irinatiun. The partial or complcto roauction of residual cf•,!orir* in a liquid by any cho:rical or physical procoss;
(14) Den;lrilication Process. Tho ronvomion of nitrato•nitrogen to nitrogen gas;

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REQUEST NO: 9267 SITE NO: 1 DATE: 10/ 5/94
SOURCE: NRCD ACTION: EXISTING
STATION NUMBER: 0208174700 TYPE STATION: 01
STATION NAME: TAR R AT US 401 AT LOUISBURG, NC
LOCATION: AT US 401 AND 0.5 MI SE OF LOUISBURG, NC
LATITUDE: 360534 LONGITUDE: 781748
QUADRANGLE NUMBER: C25SE
COUNTY CODE: 069 STATE CODE: 37 DISTRICT CODE: 37
HYDROLOGIC UNIT CODE: 03020101 NRCD BASIN CODE: 030301
DRAINAGE AREA: 427.00 SQ MI
AVERAGE FLOW: 442.01 [A]
7010 MIN FLOW: 10.29 [A]
( SUMMER)
3002 MIN FLOW: 37.64 [A]
7Q10 MIN FLOW: 40.21 [A]
(WINTER)
702 MIN FLOW: 24.55j [A]
NOTES:
[A] Estimate is based on records collected at or near the site.
[B] Estimate is based entirely on runoff observed at nearby streams.
[C] Estimate based on procedures given in Open -File Report 90-399
"Low -Flow Characteristics of Streams In North Carolina"
[D] Estimate based on procedures given in Open -File Report 90-399 and
in conjuction with records collected at or near the site.
***** These data are provisional pending approval by the Director,USGS ******
REMARKS.
I.ItEQUESTOR = JASON 'bW�';�= SECTIOIM
Entered by: JCW
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