NC0024406_Waste Load Allocation_19920309 (4)

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: _NCoo ;2V`fDb
FACILITY NAME: -Dake Rower- kews Creek
Facility Status:( 1 PROPOSED
(circle one) �
Permit Status: AL. M001W.ATM NEW
(circle one)
Major minor,__
Pipe No: 3
Design .Capacity (MGD):
Domestic (% of Flow). a
Industrial (X of Flow): ADO
Comments: Ash . Seifl,'rw avid, d;sc oe.9e �z 5�'rAuJafier
RECEIVING STREAM: Dan R I V er
Class: WS'ff
Sub -Basin: - 63-09-01
Reference USGS Quad: 13/y sf (please attach)
County:
Regional Office: As Fa Mo. Ra Wa Wi WS
(circle one)
Requested By:6��4C_ luKA- Date:
Prepared By: ("�Ci LLidw, Date:
Reviewed By: t' U) V— Date:1110490-
Modeler
Date Rec.
i
Oil 6 e* mm,i)
%. ®9
/�• /
Drainage Area (mit) 50 % Avg. Streamflow (cfs):?�
7Q10 (cfs) Winter 7Q10 (cfs) 30Q2 (cfs)
Toxicity Limits: IWC 33 % (circle one) Acute /Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
Effluent
Characteristics
Oil 6 e* mm,i)
%. ®9
/�• /
1 r Aie, Lvg11)
feu.
_
-P`1 vhorv5("�)
M.
CSU
-
�Cc,I�JC�f'YI I�
dYt62tti �%�
PA4
A&Lvd
1�l
V IV104CLS, CtIR )
Comments.-
1"Unt1/
u

FOR APPROPRIATE DISCHARGERS, LIST COMPLETE GUIDELINE LIMITATIONS BELOW

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
Request #
Duke Power--Belews Lake --pipe 003
NC0024406 _ 1�
�m�-100% !,w
Existing
Renewal
Dan River
WS -III
03-02-01
RECEIVED
N.C. Dept. of EHNR
J U L 0 6 1992
6801 Winston-Salem
Regional Office
Stokes
Stream Characteristic:
Winston-Salem Regional Office
USGS # Lake
i
Rosanne Barona
Date:
3/9/92
Drainage Area (mi2):
B 18SE
Summer 7Q10 (cfs):
5 n
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):L
IWC (%):
•9�
/�
(:0
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Ash settling pond discharge. Coal pile runoff and low volume waste are discharged into the
settling pond. T-16 l F_ vw q -,j._, pa5j. 1 baq�6'1�.
Special Schedule Muir ments and additionalc�mme s fr Reviewers:
d�r'm 21-2
/'�i/�i9�'!� � %1 .�'�!�'�'s� �'�✓� s•� `� /J�/'�isr ,s �./�'� /CJS %-
Recommended by:V VV
Date: 5 9
Reviewed by
InstreamAssessment: (�G a�le�we-'erg Date: �a
Regional Supervisor: Date: 3� z -
Permits & Engineering: Date:
RETURN TO TECHNICAL SERVICES BY: J U L 3 0 1992

Existina Limits:
Wasteflow (MGD):
Oil and Grease (mg/1):
TSS (mg/l)*:
Total Arsenic (µg/1):
Total Selenium (µg/1):
Total Nitrogen (mg/1):
pH (SU):
Total Phosphorus (mg/1):
PPA
Chronic Tox.
2
CONVENTIONAL PARAMETERS
Mon. Ave
monitor
9.09
18.18
1 • 1'
Da. Max.
12.12
60.6
monitor
23.0
monitor
6.0-9.0
monitor
Annual
Quarterly
* Monthly average of 38.18 mg/1 is permitted provided that the permittee can satisfactorily
demonistrate that the differrence between 18.18 mg/1 and 38.18 mg/l is due to the concentration of
total suspended solids in the source body.
Recommended Limits:
Mon. Ave Da. Max. WQ or EL
Wasteflow (MGD): monitor
Oil and Grease (mg/1): 9.09 12.12 EL
TSS (mg/1)*: 18.18 60.6 EL
Total Arsenic (µg/1): monitor
Total Selenium (µg/1): 23.0 WQ
Total Nitrogen (mg/1): monitor
Total Phosphorus (mg/1): monitor
pH (SU): 6.0-9.0
Sulfates (mg/1): monitor
Barium (µg/1): monitor
Fluoride (µg/1): monitor
PPA Annual
Chronic Tox. Quarterly
* Monthly average of 38.18 mg/1 is permitted provided that the permittee can satisfactorily
demonistrate that the differrence between 18.18 mg/l and 38.18 mg/1 is due to the concentration of
total suspended solids in the source body.
Limits Changes Due To: Parameter(s) Affected
Change in 7Q10 data
Change in stream classification X Barium, Fluoride, Sulfates
Relocation of discharge
Change in wasteflow
Other (onsite toxicity study, interaction, etc.)
Instream data
New regulations/standards/procedures
New facility information
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.

N
INSTREAM MONITORING REQUIREMENTS
Upstream Location:
Downstream Location:
Parameters:
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION && SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility denyCinstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes 11// 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?
Special Instructions or Conditions
Wasteload sent to EPA? (Major) (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.
1.
..
3
N
INSTREAM MONITORING REQUIREMENTS
Upstream Location:
Downstream Location:
Parameters:
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION && SPECIAL CONDITIONS
Adequacy of Existing Treatment
Has the facility denyCinstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes 11// 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?
Special Instructions or Conditions
Wasteload sent to EPA? (Major) (Y or N)
(If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old
assumptions that were made, and description of how it fits into basinwide plan)
Additional Information attached? (Y or N) If yes, explain with attachments.

Facility Name Permit #/UUQ��`C�O
0 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 33 % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
r r 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 during the months of
6!b /'j?a � ' is , ifl0 �/ . Effluent sampling for this testing shall be performed at the NPDES
penal effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR -1) for the month in which it was performed, using the parameter code TGP3B.,
Additionally, DEM Form AT- I (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 ?Z/ cfs
Permitted Flow '7,-7 MGD
IWC '33 %
Basin & Sub -basin 036c90/
Receiving Stream 0&'t H
County —'rOjEm
QCL PIF Version 9191
Recommended by:
Date l a3 GI 2`