NC0074772_Wasteload Allocation_19921105

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0074772
PERNIITTEE NAME: Mid South Water Systems, Inc.
FACILITY NAME: -14At J 1 rAJ UEJ. rfuldtu;seh
Facility Status: _ Existing
Permit Status: Renewal
Major _
Pipe No.:
001
Minor -q
Design Capacity: 0.100 MGD 1` %C
Domestic (% of Flow):
Industrial (% of Flow):
Comments:
100 %
/zdl8f ,
NO. At< -
refer: Basinwide / Streamline WLA file
7 at front of subbasin
RECEIVING STREAM: Lake Norman (Reeds Creek Arm)
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: 11/30/93 Treatment Plant Class: II
Classification changes within three miles:
Requested by: Susan Robson Date: 7/22/92
Prepared by: Date: ! 3 9 L
Reviewed Date:
i�ob,.S
Modeler
Date Rec.
I #
-Y MA K1
-t az 5
-1 o s t
Drainage Area (miZ ) lAil Avg. Streamflow (cfs):
7Q10 (cfs) Winter7Q10 (cfs) 30Q2 (cfs)
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream_ Location
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
/ S L6P1
NH3-N (mgA)
D.O. (mg/1)
F t�Ps
TSS (mg/1)
so
F. Col. (/100 ml)
,200
PH (SU)
6�9
� G
/
hvnr/0✓
/
Comments: L i i L U,

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 #
MSWS-Diamond Head Dev. Subdivision
NC0074772
Domestic -100%
Existing
Renewal
Lake Norman (Reeds Creek Arm)
WS-III & B
030832
IredeII
Mooresville WA4
Robson
7/22 92
E15SE
rp 2 31992
I VOORESVILIE REgIO91OFFICE
USGS #
Date:
Drainage Area (mi2): Lake Discharge
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
1WC (%):
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Facility requesting renewal of existing NPDES permit. MRO recommends implementation of BPJ
limits for protection of Lake Norman. Facility compliance data indicates that Diamond Head Dev.;
can meet limits of 15/4/6.
Special Schedule Req UAmrements and additional comments from Reviewers:
Recommended by: o
Reviewed by
%J
Instream Assessment:
Regional Supervisor:
Permits & Engineerin
Date _9/16/92
RETURN TO TECHNICAL SERVICES BY: OCT 1 7 1992

CONVENTIONAL PARAMETERS
Existing Li nits:
Monthly Average
Summer Winter
Wasteflow (MGD):
0.100
BODS (mg/1):
30
NH3N (mg/l):
nr
DO (mg/1):
5
TSS (mg/l):
30
Fecal Col. (/100 ml):
200
pH (SU):
6-9
Residual Chlorine (µg/1):
monitor
Temperature (C):
monitor
TP (mg/1):
monitor
TN (mg/1):
monitor
Reco-mrnended Limits:
Monthly Average
Summer winter
WQ or EL
Wasteflow (MGD):
0.100
BODS (mg/1):
15
BPJ
NH3N (mg/1):
4
BPJ
DO (mg/1):
6
BPJ
TSS (mg/1):
30
WQ
Fecal Col. (1100 ml):
200
WQ
pH (SU):
6-9
WQ
Residual Chlorine (µg/l):
monitor
Temperature (C):
monitor
TP (mg/1):
monitor
TN (mg/1):
monitor
Limits Changes Due To: Parameter(s) Affected
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
Other (onsite toxicity study, interaction, etc.) BOD5, NH3,DO
Instream data
New regulations/standards/procedures
New facility information
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.

MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS
Adtuacv of Existing Treatment
Has the facility dempnstrated 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?
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.