NC0020231_WASTELOAD allocation_19901105

WDE5 DOCUNEXT SCANNIMO COVER SKEET
NPDES Permit:
NCO020231
Louisburg WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modifiratinn
Complete File - Historical
Data Monitoring Report
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date: � November 5, 1990 1
This document is priated ozM reuse paper - iMaore an<y
conite,Mt on. the reamer side

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO020231
PERNT= NAME: Town of Louisburg / Louisburg Wastewater _
Facility Status: Existing Tre0. -�+e t4- Plct-+
Permit Status: Modification / Review cLI
Major Minor
Pipe No.: 001
Design Capacity: D.$ MG D — Eyaivs
Domestic (% of Flow):
Industrial (% of Flow):
Comments:
94 %
6** %
I A UWA ftinne
RECEIVING STREAM: Tar River
Class: WS-III NSW
Sub -Basin: 03-03-01
Reference USGS Quad: C25SE, Louisburg n (please attach)
County: Franklin
Regional Office: Raleigh Regional Office
Previous Exp. Date: 6/30/91 Treatment Plant Class:
Classification changes within three miles:
None within 3 mi.
Requested by
Prepared by:
Reviewed by
7Babw 13— -
L,o QI EL
9/1 %/90
Date: -4AMM
Date:
Date:
0
Modeler Date Rec. #
�o Sala Z •
Drainage Area (mil) 7 Avg. Streatnflow (cfs):46,0
7Q10 (cfs)) Winter 7Q10 (cfs)P"b 30Q2 (cfs)
Toxicity Limits: IWC S % Acut Chronic
Instream • g
Monitorin • Q P��
Parameters P.O. i—Vmp. COLT C0M PU GTJ J(T -f
Upstream Location r `C T- fao� upsT� e4^
Downstream ` Location K S• At Ptw v 5rRrA"k
Effluent
Characteristics
��,Ant7-,S
BOD5 (m )
p
NH3-N (mg/1)
D.O. (mg/1)
s
TSS (mg/1)
-3©
F. Col. 000 ml)
zoo
PH (SU)
Comments: TR2 tLJA BASiN SrEA '4 Pry ure " 6305-TIN4 Fgclu rlES
To A"" ITo4 -{-o kL- /%7_XJPAN AA,�D TorAL•- Pk0S ofzou .4
ftANRLt iaAS�S. tIC-ADwA2rcS A/VAUIS(S S►{©uc� E3C ��i2Fa,PME�j
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Request
------------------- WASTELOAD ALLOCATION APPROVAL FORM
Facility Name:
NPDES No.:
Type of Waste:
Status:
Receiving Stream:
Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Quad:
Louisburg WWTP
NCO0202031
94% Domestic/6%
Industrial
Existing/,
Tar River
WS-III, NSW
030301
Drainage
Franklin
Summer
RRO
Winter
Jule Shanklin
Average
9/18/90
C25SE
No. 5.8,62
area: 437.0 sq;,mi
7Q10: 14.00 cfs
7Q10: 48.00 cfs
flow: 460.00 cfs
30Q2: cfs
-------------------- RECOMMENDED EFFLUENT LIMITS -------------------------
EXISTING EXISTING/UPDATED
Wasteflow (mgd) :
BOD5 (mg/1) :
NH3N (mg/1) :
DO (mg/1):
TSS (mg/1) :
Fecal coliform (#/100ml):
pH (su) :
0.80
0.80
30
30
5
5
30
30
1000
200
6-9
6-9
**Toxicity Testing Req.: Chronic Q P/F: 8. %
OCT a _ "�990
---------------------------- MONITORING ----------------------------------
Parameters: D.O., temperature, Fecal coli, conductivity
Upstream (Y/N): Y Location: at least 100 ft upstream
Downstream (Y/N): Y Location: approximately 5.7 miles downstream
of discharge. lwii� ExvA��on1 j
----------------------------- COMMENTS -----------------------------------
Louisburg WWTP proposes to expand its facilities. A wasteload has already
been performed for the expansion. Because renewal of the existing 0.8 MGD
facility is required by next summer, it will be done now. This renewal is
per current policy with renewal facilities (i.e. standard Fecal update and
checking for ammonia toxicity, etc.).
Tar River basin strategy requires existing facilities to monitor total
Nitrogen and total Phosphorous on a monthly basis.
Headworks analysis should be performed (as was specified for the expansion
Recommended by: Date:
Reviewed by
Tech Support Supervisor:
Regional Supervisor:
Permits & Engineering:
RETURN TO TECHNICK
Date:
Date: 6 z o
Date:

(.66fVe� E-xPfttnJ5 toN)
at AT CAARENr F'ww — ,
Facility Name LOUIS&A" --WW7-P Pennit # N(f.00 Z02pZj J
CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests,
using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which
significant mortality is . % (defi;
document). eer:mit holder shall
compliancg th he permit condi&
issuanceurtn _
samplrII �' hrrg.shafl7be
z : 9 ts�:,
All toxic_ i
Dis '
coded ".
�itetttrt�
Z�p
there may be no observable inhibition of reproduction or
led As treatment two in the North Carolina procedure
perform guartcrjy monitoring using this procedure to establish
$Me. fast test will be performed after thirty days from
tO of Effluent
Etnmed at the NPDES :permitted final effluent discharge below
I'm
of this permit condition will be entered tin the Effluent
c :month in which it was performed, using:he ar meter
T1(original.)is to be sent to the followurg�pddress:
vrronmental Sciences`Branch. Idrth Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in -association with the toxicity tests, as well as all doselresponse 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 Iimits, 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 strearn,'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 14 cfs
Permited Flow O. MGD
IWC%_ 16.1
Basin & Sub -basin osy sot 171201
Receiving Stream TAp=p/E2
County F
Recommended by:
Date zo 0
"Chronic Toxicity (Ceriodaphnia) P/F at $—.L%, 1,,0 real, MAR, JU , See Part 3 , Condition .

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AMMONIA ANALYSIS:
SUMMER
7Q10: 14.00 cfs
NH3-N Effl. Conc: 21.10 mg/1
Standard (1 mg/1): 1000 ug/l
Upstream NH3-N Conc.: 220.00 ug/l
Design Flow: 0.8000 MGD
Predicted NH3-N Instream: 1918.9 ug/1
1.9188 mg/l
NH3-N Limit: 9806.4 mg/1 +MI (pt?aoDt «�°'C
196N4 1
7Q10: 48.00 cfs
NH3-N Effl. Conc: 21.10 mg/1
Standard (1.8 mg/1): 1800 ug/l
Upstream NH3-N Conc.: 220.00 ug/1
Design Flow: 0.8000 MGD
Predicted NH3-N Instream: 745.82 ug/l
0.7458 mg/l
NH3-N Limit: 62961. ug/l
62.961 mg/1 No z�M'r
eri , A J AA / 7- /-J-0 x -r6 51