NC0000108_Waste Load Allocation_19910326

05 .1 Co t`-` `- N "L- cPt-^ NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0000108 Modeler Date Rec. #
,s 3i?a, �i I Gl('7
PERMITTEE NAME: American Thread Company / Sylvan Plant Lr 2
Facility Status: Existing Drainage ea (nu ) Q (� % Avg. Streamflow (cfs): Z
Permit Status: Renewal 7Q10 (cfs) O - io Winter 7Q10 (cfs) 30Q2 (cfs) 1.O
Major Minor Toxicity Limits: IWC % Acute/Chronic
Pipe No.: 001 Instream Monitoring:
Design Capacity: 0.015 MGD Parameters
Domestic (% of Flow): 100% Upstream Location
Industrial (% of Flow): Downstream Location
Comments: Effluent
001 = domestic discharge. 002 = non - contact cooling water, Characteristics Summer /yl%1✓�+' V�it�ter
BOD5 (mg/1) �� • a
NH 3 -N (mg/1) .2 f , D (Smokr) 3 0(wit,
RECEIVING STREAM: Galloway Creek D.O. (mg/1)
Class: C
TSS (mg/1)
Sub - Basin: 04 -03 -01 3p• D
Reference USGS Quad: G7NE (please attach) F. Col. ( /100 ml) 200• C)
County: Transylvania H SU
Regional Office: Asheville Regional Office
Previous Exp. Date: 9/30/91 Treatment Plant Class: 1
Classification changes within three miles:
No change within three miles.
rater: Basinwide / Streamline WLA file
at front of subbasin
Requested by: Mack Wiggins Date: 3/25/91 I
Prepared by: Date: (13&1
Comments:
Reviewed by: d Date:
�D w 131.5

P'
Li
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 #
American Thread Company/Sylvan Plant
NC0000108
Domestic - 10096
Existing
Renewal
Galloway Creek
C
040301
6167
Transylvania Stream Characteristic:
Asheville Regional Office USGS #
Wiggins Date:
3/25/91 Drainage Area (mi2):
G7NE Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
30Q2 (cfs):
RECEIVED
Water Quality Sectim
MAY 2 1 1591
Asheville Regional Office
Asheville, Uth Carolina
03.4389.1840
1988
0.69
0.6
0.9
2.4
1.0
Wasteload Allocation Summary O d
(approach taken, correspondence with region, EPA, etc.) /#/
Flows were estimated from a nearby tributary to Lamance Creek. This resulted in slightly higher
7Q10 data than those used in the model. Permit also contains two non - contact cooling water
discharges (001 and 002). The 003 pipe is the domestic discharge. The fecal coliform limit was
changed to 200/100 ml.
Special Schedule Requirements and additional comments from Reviewers:
Recommended by:
Reviewed by
Instream Assessment:
Region sor,
Permits & Engineering:
RETURN TO TECHNICAL SERVICES BY:
Date: J`2/
Date: 5 // (0 /,1
1
Date: J ZJ I q J
Date: /1("
JUN 14 1991

1
Wasteflow (MGD):
BODS (mg4):
NH3N (mg11):
DO (mg/1):
TSS (mg/1):
Fecal Col. (1100 ml):
PH (SU):
Oil & Grease (mg/1):
TP (mgn):
TN (mg/1):
Residual Chlorine (µg/1):
Wasteflow (MGD):
BODS (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (Si):
Oil & Grease (mg/1):
TP (mg/1):
IN (mg/1):
Residual Chlorine (µg/1):
Toxicity Test:
2
PARAMETERS
Monthly Average
0.015
30.0
monitor
30.0
1000.0
6.0 -9.0
I�
Monthly Average
w/NH3 P /toxifity
tf't
N T,
g 2 V,T
limit
test
0.015
0.01$
30.0
2-lor
21.0
30.0
200.0
(t,
6.0 -9.0
Limit Changes Due To:
Change in 7Q10 Data
Change in stream classification
Change in wasteflow
Failing toxicity test
Other
@796
Fecals

Y# d�
(SlJeM �)
--9/0 -o;("10-
coo) 4w)d VVAJASI V) YJMAtl ,"ri IAWY
N

AMERICAN THREAD - Allowable Waste Concentrations
SUMMER
Residual Chlorine I I Ammonia as NH3
17Q10 (CFS) 1
0.61
7Q10 (CFS)
0.6
DESIGN FLOW (MGD) 1
0.0151
DESIGN FLOW (MGD)
0.015
DESIGN FLOW (CFS) 1
0.023251
DESIGN FLOW (CFS)
0.02325
STREAM STD (UG/L) 1
17.0
STREAM STD (MG /L)
1.0
SUPS BACKGROUND LEVEL (UG /L) 1
01
(UPS BACKGROUND LEVEL (MG /L)l
0.22
'WC ( %) 1
3.73044521
1 IWC ( %) 1
3.730445
Allowable Concentration (ug /I) 1
455.709681
Allowable Concentration (mg /1) 1
21.12903
WINTER
Residual Chlorine
JAmmonia as NH3
7Q10 (CFS)
0.91
17Q10 (CFS)
0.9
DESIGN FLOW (MGD) 1
0.0151
(DESIGN FLOW (MGD) 1
0.015
DESIGN FLOW (CFS) 1
0.023251
1 DESIGN FLOW (CFS) I
0.02325
STREAM STD (UG/L)
17.01
ISTREAM STD (MG /L) I
1.n
JUPS BACKGROUND LEVEL (UG /L)
01
JUPS BACKGROUND LEVEL (MG /L)l
0.22
IIWC ( %) 1
2.5182778
1IWC ( %) 1
2.518278
(Allowable Concentration (uq /I) 1
675.064521
(Allowable Concentration (mq /1)
31.19355
NC0000108 DAG 5/01/91