NC0000108_Wasteload Allocation_19910604

NPDES DOCUHENT SCANNING COVER SHEET
Permit:
NC000010S
NPDES
Document Type:
Permit Issuance
Wasteload Allocation `'
Authorization to Construct (AtC)
Permit Modification
Complete File
- Historical
Monitoring Report
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date:
June 4, 1991
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NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0000108
PERMI'llhE NAME: American Thread Company / Sylvan Plant
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.: 001
Design Capacity: 0.015 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments:
001=domestic discharge, 002 = non -contact cooling water
RECEIVING STREAM: Galloway Creek
Class: C
Sub -Basin: 04-03-01
Reference USGS Quad: G7NE
(please attach)
County: Transylvania
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.
Requested by:
Prepared by:
Reviewed by:
Mack Wiggins
fl 4 t.s
U (Sac;L WQ
Date: 3/25/91
Date: .3 9/
Date: 6 11
Modeler
Date Rec.
#
1-543
3iZ1•01'11
6110/
DrainageA Area (mi l
) Q, � 7 Avg. Streamflow (cfs): Z ,
7Q10 (cfs) 0 . Cz, Winter 7Q10 (cfs) 0 • c7 30Q2 (cfs) 1. 0
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
Effluent
Characteristics
Summer Mir toil
/
Winter --
BOBS (mg/1)
50.0
NH3-N (mg/1)
02 J. 0 (stko i,r)
3 L okivi y>
D.O. (mg/1)
TSS (mg/1)
3p, D
F. Col. (/100 ml)
200. 0
pH (SU)
6. o -7. 0
refer: Basinwide
/ Streamline
at front of subbasin
WLA file
i\

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:
Coats America [formerly
NC0000108
100 % Domestic
Existing
Renewal
Galloway Creek
C
04-03-01
Transylvania
Asheville
Lucas
1 / 13 / 95
G 7 NE
Request # B8174
American Thread Company]
Stream Characteristic:
USGS #
Date:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7010 (cfs):
Average Flow (cfs):
30Q2 (cfs):
IWC (%):
0.69
0.6
0.9
2.4
1.0
3.7 %
Staff Report:
IWC Spreadsheet:
Stream Classification:
Instream Data:
nr ammonia limits in Permit
nr
First modeled in 1997 w/ Secondary limits recommended. Flows were updated in 1991, (slightly lower) as well as
addition of ammonia limits.
DMR's
discharge is 0.0090 mgd every month.
BOD's are often below detection, (i.e. 2.0 mg/I) and were 0.50 in September and 0.80 in October 1994.
Two solids violations: January and February, 1995.
The Region was informed, (via e-mail) of these DMR's irregularities.
Engineer informs me that they are applying for an outfall 003 which will be water sprayed over the thread prior to
winding it onto spools; this outfall will have extensive monitoring.

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Peitint Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Request # 6167
American Thread Company/Sylvan Plant
NC0000108
Domestic - 100%
Existing
Renewal
Galloway Creek
C
040301
Transylvania
Asheville Regional Office
Wiggins
3/25/91
G7NE
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
RECEIVED
Water Quality Sectiovi
MAY 2 1
!
Asheville Regional 0ffic*
,Asheville, North Carolina
Stream Characteristic:
USGS # 03.4389.1840
Date: 1988
Drainage Area (mi2): 0.69
Summer 7Q10 (cfs): 0.6
Winter 7Q10 (cfs): 0.9
Average Flow (cfs): 2.4
30Q2 (cfs): 1.0
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
Region
Instream Assessment: (lit/Au6.—
CS-•%a•-#1
sor:
Permits & Engineering:
Date: 5 16 / /
Date: S ( Z1 l a I
Date: S�/3'l4'(
RETURN TO TECHNICAL SERVICES BY: JUN 14 1991

Existing Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Oil & Grease (mg/1):
TP (mg/1)
TN (mg/1):
Residual Chlorine (µg/1):
Recommended Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1)
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Oil & Grease (mg/1):
TP (mg/1):
TN (mg/1): j
Residual Chlorine (14/1):
Toxicity Test:
2
PARAMETERS
Monthly Average
0.015
30.0
monitor
30.0
1000.0
6.0-9.0
Monthly Average
w/NH3 /to ' ity
limit est
0.015 .01
30.0
21.0 m i 'tor
30.0
200.0
6.0-9.0
#Iv'' ki
/ N 1j3'
fi'Y ,„0/i/
1
Limit Changes Due To: Parameters Affected
Change in 10 Data
Change in �S�am classification Fecals
Change in Wasteflow
Failing toxicity test
Other

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AMERICAN THREAD - Allowable Waste Concentrations
SUMMER
Residual Chlorine
Ammonia as NH3
7Q10 (CFS)
0.6
7Q10 (CFS)
0.6
DESIGN FLOW (MGD)
0.015
DESIGN FLOW (MGD)
0.015
DESIGN FLOW (CFS)
0.02325
DESIGN FLOW (CFS)
0.02325
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
UPS BACKGROUND LEVEL (UG/L)
0
UPS BACKGROUND LEVEL (MG/L)
0.22
IWC (%)
3.7304452
IWC (%)
3.730445
Allowable Concentration (ug/I)
455.70968
Allowable Concentration (mg/I)
21.12903
WINTER
Residual Chlorine
Ammonia as NH3
7Q10 (CFS)
0.9
7Q10 (CFS)
0.9
DESIGN FLOW (MGD)
0.015
DESIGN FLOW (MGD)
0.015
DESIGN FLOW (CFS)
0.02325
DESIGN FLOW (CFS)
0.02325
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.g
UPS BACKGROUND LEVEL (UG/L)
0
UPS BACKGROUND LEVEL (MG/L)
0.22
IWC (%)
2.5182778
IWC (%)
2.518278
Allowable Concentration (ug/I)
675.06452
Allowable Concentration (mg/I)
31.19355
NC0000108
DAG 5/01/91