NC0038041_Wasteload Allocation_19920501

PERMrr NO.: NCO038041
PERMITTEE NAME: Four Seasons Apartments, Inc.
FACIL=NANE: Four Seasons Apartments
Facility Status: Existing
Permit Status: Renewal
Major
Pipe No.: 001
Design Capacity -
Minor `1
0.0145 MGD
NPDES WASTE LOAD ALLOCATION
Domestic (% of Flow): 100 %
Industrial (% of Flow): 0 %
Comments: Refer: Basinwide / Streamline WLA File
Completed By Permits & Engineering
At Front Of Subbasin
RECEIVING STREAM: Laurel Fork
Class: B-Trout:
Sub -Basin: 04-02-01
Reference USGS Quad: C 12 NW (please attach)
County: Watatnga
Regional Office- Winston-Salem Regional Office
Previous Exp. Date: 6/30/92 Treatment Plant Class: H
Classification changes within three miles:
HOW.
Requested by: Charles M. Lowe Date: 1/29/92
Prepared by: rho Date: 1 � % 2,
Reviewed y �1q Date:
Modeler
Date Rec.
I #
it1.✓
u Sz
&730
Drainage Area (mil ) 7,7 Avg. Streamflow (cfs):
7Q10 (cfs) /, /S Winter 7Q10 (cfs) /, 7 30Q2 (cfs) Z.6
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
Effluent
Characteristics
Summer
Winter
BOD5 (mg/1)
30
NH3-N (mg/1)
nv
D.O. (mg/1)
Ltd
TSS (mg/1)
3 d
F. Col. (/100 ml)
zdu
pH (SU)
, y
an
n
Comments:

RECEIVED
N.C. Dept. of EHNR
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
Four Seasons Apartments
NCO038041
Domestic - 100%
Existing
Renewal
Laurel Fork
B-Trout
040201
Watauga
Winston-Salem
Lowe
2/4/92
C12NW
Request #
Q00 14 IM
6730 Winston-Salem
Regional Office
Stream Characteristic:
k.0
;o.
USGS #
v
�'C%
- rn
Date:
Drainage Area (mi2):
3.7
cv
M:v c,
Summer 7Q10 (cfs):
1.15
N
o`; �,
Winter 7Q10 (cfs):
1.7
?
Average Flow (cfs):
7.4
-
wT
30Q2 (cfs):
2.6
IWC (%):
1.9
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Facility requesting renewal of existing permit. Technical Support recommends renewal w/
modifications to the fecal coliform and chlorine limits.
Special Schedule Requirements and additional comments from Reviewers:
Recommended by: Date: 4/1/92
Reviewed by
Instream Assessment: I /lhX.ft . ,�/bt 0l P t D L}vt Date: 3 G/ a
Regional Supervisor: '� � � Date: 4/-20- >
Permits & Engineering: ✓ `A Date: Y2-4y 2-
MAY 0 8 1992
RETURN TO TECHNICAL SERVICES BY:

CONVENTIONAL PARAMETERS
Existine Limi
Monthly Average
Summer Winter
Wasteflow (MGD):
0.0145
BOD5 (mg/1):
30
NH3N (mg/1):
nr
DO (mg/1):
nr
TSS (mg/1):
30
Fecal Col. V100 ml):
200
pH (SU):
6-9
Residual Chlorine (µg/1):
104
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1):
Recommended Limits:
Monthly Average
Summer Winter
Wasteflow (MGD):
0.0145
BOD5 (mg/1):
30
NH3N (mg/1):
nr
DO (mg/l):
nr
TSS (mg/1):
30
Fecal Col. (/100 ml):
200
pH (SU):
6-9
Residual Chlorine Qµg/1):
-i& 0 4
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1):
Limits Chanties Due To:
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
Other (onsite tonicity study, interaction, etc.)
Instream data
New regulations/standards/procedures
New facility information
WQ or EL
WQ
WQ
WQ
WQ
WQ
Chlorine
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.

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 de`
Xrnstrated the ability to meet the proposed new limits with existing treatment
facilities? Yes No
T
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes _ No I�L.
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.

c
tour seasons apts
AMMONIA ANALYSIS
7W-10: 1. 1 500 cf s
NH3 Effl. Conc: 0.0000 mg/l
AL (1/1.8 mg/1): 1000.00 ug/1
Upstream NH3 Conc.: 220.0000 ug/l
Design Flow: 0.0145 M G D
Predicted NH3 Downstream: 215.78 ug/l
0.215782 rng/l
NH3 Limit: 4091 1 - 0 1 ug/l
40.91101 mg/1
AMMONIA ANALYSIS (WINTER)
7Q10: 1.7000 c'fs
NH3 Effl. Conc: 0.0000 mg/l
AL (1/1.8 mg/1): 1800.00 u9/1
Upstream NH3 Conc,: 220.0000 ug/1
Design Plow: 0.0145 MGD
Predicted NH3 Downstream: 217,13 ug/1
0. 21 7 '1 2J mg/1
NH3 Limit: '1 213 1 0 . 5 L19/1
121.3105 rng/1

four, seasons apts
CHLORINE ANALYSIS
7Q10: 0.1500 cfs
CL2 Eff1. Conc: 0.0000 mg/1
AL (17/19 ug/1): 17.0000 ug/1
Upstream CL2 Conca: 0.0000 ug/1
Design Flow: 0.0145 MCzD
Peed cted CL2 Downstrseam: 0.00 ug/1
0 mg/ 1
CL2 Limit: - 130.4593 ug/1
0.130450 mg/1