NC0056154_Wasteload Allocation_19921105

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO056154
PERMI= NAME: Mid South Water Systems, Inc.
FACILITY NAME: C_a Shame` s'-
Facility Status: Existing
Permit Status: n
Major Minor
Pipe No.: 001
Design Capacity: 0.08 MGD 6.0�
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments:
' refer: Basinwide / Streamline WLA file
at front of subbasin
RECEIVING STREAM:GatawbrRiver t,+►We ► " s►
Class: WS-III and B
Sub -Basin: 03-08-3z-
Reference USGS Quad: E15SE (please attach)
County: Iredell
Regional Office: Mooresville Regional Office
Previous Exp. Date: 2/28/93 Treatment Plant Class: II
Classification changes within three miles:
Requested by: f I Susan Robson
Prepared by:
Modeler
Date Rec.
#
�-►� nl
't zz
i �-
rl 0 3 a
Drainage Area (mi ) L 44ea'_ Avg. Streamflow (cfs):
7Q10 (cfs) Winter 7Q10 (cfs) 30Q2 (cfs)
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
Date: 7/13/92
Date: / J 9 Z-- Comments:
Date:
7
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
.S 41'.T
NH3-N (mg/1)
g ��
D.O. (mg/1)
G
TSS (mg/1)
30
F. Col. (/100 ml)
,200
pH (SU)
¢�n
aG
o Af

U3D�� Z
l
� u
i
1113
�6S `S� %� �-�i�. /Z ) /llff3 3. z s� t �� �w�yc . / 3. S— /1)
0

FACT SHEET FOR WASTELOAD ALLOCATION
Request # 7030
Facility Name:
MSWS
r ; c\t
g 5e
NPDES No.:
NCO056154
Type of Waste:
100% Domestic
Facility Status:
Existing
Permit Status:
Medificalron CWL-+1
Receiving Stream:
Catawba River (Lake Norman)
Stream Classification:
WS-III & B
Subbasin:
030832
County:
Iredell* '
Stream Characteristic:
Regional Office:
Mooresville to A kA
USGS #
Requestor:
Robson
Date:
Date of Request:
7/22/92
Drainage Area (mi2): LAKE
Topo Quad:
E15SE
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Facility recommending renewal of existing NPDES permit. MRO recommends that BPJ limits be
applied at this renewal to protect water quality in Lake Norman.
Special Schedule equirements and additional comments from Reviewers:
Recommended
Reviewed by
Instream As
Date:_9/21/92
Date: ° LyS
Regional Supervisor: D Qs Date: 2—
Permits & Engineering:
RETURN TO TECHNICAL SERVICES BY: OCT 2 3 1992
p C DEPT, OF N9T
C011fMUNITy D ES AND
�L
E VLLOP;�ILNT
�P 2 9 1992
DIVISION Of ENVIRONMENTAL MANAGEMERi MOORESVILLE REGIONAL OFFICE

2
Existing Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/l):
DO (mgft
TSS (mg/l):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/1):
Temperature (°C):
TP (mg/1):
TN (mg/1):
Recommended Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/l):
DO (mg/1):
TSS (mg/l):
Fecal Col. (1100 ml):
pH (SU):
Residual Chlorine (µg ft
Temperature (°C):
TP (mg/1):
TN (mg/1):
Limits Changes Due To:
PARAMETERS
Monthly Average
Summer Winter
0.08
30
nr
nr
30
200
6-9
monitor
monitor
monitor
monitor
Monthly
Average
S/W
WQorEL
0.08
15
BPJ
4
BPJ
6
BPJ
30
WQ
200
WQ
6-9
WQ
monitor
monitor
monitor
monitor
Parameter(s) Affected
Change in 7Q10 data
New regulations/standards
New procedures
New facility information
Change in stream classification
Other BOD5, NH3, DO
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.
No parameters are water quality limited, but this discharge may affect future allocations.

4
3
INSTREAM MONITORING REQUIREMENTS
Upstream Location:
Downstream Location:
Parameters:
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
A ftuacy of Existing Treatment
Has the facility denhstrated 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?
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.