NC0045276_Wasteload Allocation_19920421

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO045276
PERMITTEE NAME: Brunswick County Schools
FACILITY NAME: Waccamaw Elementary School
Facility Status: Existing
Permit Status: Renewal
Major
Pipe No.: 001
Minor -1
Design Capacity: 0.017 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments:
RECEIVING STREAM: an umemea tributary to Beer Branch
Class: C-Swarnp
Sub -Basin: 03-07-57
Reference USGS Quad: K24NE (please attach)
County: Brunswick
Regional Office:_ Wilmington Regional Office
Previous Exp. Date: 8/31/92 Treatment Plant Class:
Classification changes within three miles:
No change within three miles.
Requested by: Mack Wiggins Date: 2/13/92
Prepared by: A, Y, Date: 9Z
Reviewed by: Date: --! a
3o9c� 16.5 (s/LW
w��tz
ai 9.2✓
Modeler Date Rec. I#
z
Drainage Area (nut) p .o7 Avg. Streamflow (cfs): o. o75
7Q10 (cfs) o Winter 7Q10 (cfs) p 30Q2 (cfs) o
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters 'D.o.. T&rnP Fe[At_ e.Ltrbgm roapue--wiry
Upstream y Location Ar LeAS+r too 'UPsTRti4w,
Downstream Location Ar t6Asr 3a�'�wrlsq,v,
Effluent
Characteristics
Summer
Winter
BODS (mg/1)
S
5
NH3-N (mg/1)
2
2-
D.O. (mg/1)
TSS (mg/1)
0
30
F. Col. (/100 ml)
Zoo
200
pH (SU)
(o -9
(o -
Comments: "odAt, eF bt4e4AVA5 IS Recne.MSJUGD tF A MORE SVUiRoNMENfAU..`i
56MV ALTVWATtgc is AVAI A6[.F AT AN Ffo)Jnkt Au4 (LeOSoNA6E6 cost.
PM 6APgt1rWtN4 0JE,%QTPVAu.Ar10J V15pM jIW is Due WITtom
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Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:am Receiving Stre:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR
WASTELCAD ALLOCATION
R uest # 6764
FjCEIVEF_7
Waccamaw Elem. School
NCO045276
Domestic - 100%
Existing
Renewal
UT Bear Br. E�
C-Sw
030757
Brunswick
WiRO
1v Wiggins
2/13/92
K24NE
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
APR 0 A WEIVED
WllmIrvon ReOon$AAR-d, J 1992
DEM
WftlrVon NO" 18l office
t DEM
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
I
0210962000
1987
0.07
0.0
0.0
0.075
0.0
100.0
Facility discharges to stream with 7Q10/30Q2 = 0. Removal of discharge is recommended in
three years or new limits (page 2) will apply at that time. Facility must submit an engineering
report within 12 months of the effective date of this permit showing no alternative to surface water
discharge.
Waccamaw Elem. is under an SOC. Instream data shows instances of no flow and of no instream
monitoring.
Special Schedule Requirements and additional comments from Reviewers:
."o
Recommended by: Date: 3�
Reviewed by
Instream Assessment: Date:
Regional Superviso . Date:. fZ
Permits & Engineering: Aftxly c,+-aaon-a- Date:
RETURN TO TECHNICAL SERVICES BY:
APR 1 g 1992
ao .Z Ka E I gad z6
U,1 c'-5 3`,13.J

2
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. 000 ml):
pH (SU):
Residual Chlorine (µg ft
Oil & Grease (mg/1):
TP (mg/1):
TN (mgd):
Recommended Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. 000 ml):
pH (SU):
Residual Chlorine (µg/1):
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1):
Limits Changes Due To:
Change in 7Q10 data
Monthly Average
Summer
Winter
0.017
0.017
5
5
2
2
6
6
30
30
1000
1000
6-9
6-9
For three years:
Monthly Average
Summer
Winter
0.017
0.017
5
5
2
2
6
6
30
30
200
200
6-9
6-9
WQ or EL
After three years:
Monthly Average
WQ or EL Summer Winter
WQ or EL
0.017 0.017
5.0 10.0
WQ
1.0 1.8
WQ
6.0 6.0
WQ
30.0 30.0
WQ
200.0 200.0
WQ
6.0 - 9.0 6.0 - 9.0
WQ
17.0 17.0
WQ
- • �j -; Z ,
New regulations/standards Fecal coliform
New procedures BOD5, NH3-N, Cl
New facility information
Change in stream classification
Other
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.
[A
No parameters are water quality limited, but this discharge may affect future allocations.

3
INSTREAM MONITORING REQUIREMENTS
Upstream Location: at least 100 ft upstream
Downstream Location: at least 300 ft downstream
Parameters: DO, temperature, Fecal coliform, conductivity
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
AdQu acy 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?
-_ . !! . 1 I I I I •
Wasteload sent to EPA? (Major) _N (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? _N (Y or N) If yes, explain with attachments.