NC0052043_Wasteload Allocation_19921123

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0052043
Toxaway Falls WWTP
Document Type:
Permit Issuance
(Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Technical Correction
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
November 23, 1992
This document is printed on reuse paper - ignore any
coaztent on the resrerse side

Refer : Basinwide / Streamline WLA File
Completed By Permits & Engineering
At Front Of Subbasin
PERMIT NO.: NC0052043
PERMITTEE NAME:
FACILITY NAME:
Facility Status: Existing
Toxaway Falls, Inc.
NPDES WASTE LOAD ALLOCATION
Toxaway Falls, Inc.
Permit Status: Renewal
Major Minor '1
Pipe No.: 001
Design Capacity: 0.120 MGD
Domestic (% of Flow): 100 %
Industrial (% of Flow):
Comments:
7s-
STREAM INDEX: 4-(4)
RECEIVING STREAM:Toxaway River
Class: C
r�a-rnl .
D( MGV
Sub -Basin: 03-13-02
Reference USGS Quad: G7SW, Reid
County: Transylvania
Regional Office: Asheville Regional Office
Previous Exp. Date: 3/31/93 Treatment Plant Class: II
Classification changes within three miles:
None to SC Line.
(please attach)
Requested by: Jule Shanklin Date: 10/12/92
Prepared by: - _,� Date: it /7 77/
Reviewed by: • Date: / 0 �9
"tr.(); -Bo fl � 13 5 . f.; ,12 o9u 941-.5—
we,,l65t,—��=
//
Modeler
Date Rec.
#
7NR6
i0434z-
'1/5o
2
Drainage Area (mi ) 7
Avg. Streamflow (cfs): 2 S
7Q10 (cfs) Z . 3 Winter 7Q10 (cfs) 50 30Q2 (cfs) —7. D
Toxicity Limits: IWC
Instream Monitoring:
Parameters
% Acute/Chronic
Upstream Location
Downstream Location
Effluent
Characteristics
-Wirnet
A-7 .12- MGtt
ummer
A-T- .0f MG
BOD5 (mg/1)
50
30
NH3-N (mg/1)
Mifilo✓
/l
D.O. (mg/1)
TSS (mg/1)
30
30
F. Col. (/100 ml)
.7-00
ZoO
pH (SU)
6 — /
pp-;m/ /_
,,e.,&
0
/ '7G''Q�u''C (
)
fittrylfeV
—FP 7 //%
vioy11173-2"-
1- j (rn y //)
0Iai/V
E #irs
Comments:

4.454 /is Nw
(Lake ITozaway 185-NW) 1324
—, t
Toxay. v
J
D 1 S CHARGE
-' •F : 4.POINT(
ROAD CLASSIFICATION
PRIMARY HIGHWAY
HARD SURFACE
SECONDARY HIGHWAY
HARD SURFACE =NM=
LIGHT -DUTY ROAD. HARD OR
IMPROVED SURFACE
UNIMPROVED ROAD = =
Latitude 35°07'20" Longitude 82°55' 7"
Map # G7SW Sub -basin 031302
Stream Class C
Discharge Class 06
Receiving Stream Toxaway River
Design Q (MGM 0,01 Permit expires 8/31/02
326
Toxaway Falls, Inc.
NC0052043
Transylvania County

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
Toxaway Falls, Inc.
NC0052043
Domestic - 100%
Existing
Renewal
Toxaway River
C
031302
Transylvania
Asheville
Shanklin
8/3/92
F6NW
Request# 7150RECE1VED
Water Quality Section
NOV 9 - 1992
P eville Regional 0ttim
Neville, North Caroif;r
Stream Characteristic:
USGS # 02.1841.2320
Date: 1987
Drainage Area (nu2): 7.9
Summer 7Q10 (cfs): 2.3
Winter 7Q10 (cfs): 5.0
Average Flow (cfs): 28
30Q2 (cfs): 7.0
IWC (%): 7.5
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Facility has an A to C for 0.01 MGD only. Existing limits will be given for the flow of 0.01
MGD, but a residual chlorine limit and an ammonia limit (based on toxicity) will be given. Fecal
coliform should be limited at 200/100 ml at all flows.
Special Schedule Requirements and additional comments from Reviewers:
Recommended by:
Date: /(Z ' Z
Reviewed by
Instream Assessment: Date:
Regional �"�`i"its 1 '� Date: /
Permits & IIngineering: Date: ! 2-
DEC 0 4 19
RETURN TO TECHNICAL SERVICES BY:

Existing Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (14/1):
Temperature (°C):
TP (mg/1):
TN (mg/1):
RecQmmended Limits:
Wasteflow (MGD):
BOD5 (mg/1):
NH3N (mg/1):
DO (mg/1):
TSS (mg/1):
Fecal Col. (/100 ml):
pH (SU):
Residual Chlorine (µg/1):
Temperature (°C):
TP (mg/1):
TN (mg/1):
2
PARAMETERS
Monthly Average
0.12
30.0
monitor
30.0
1000.0
6-9
monitor
monitor
monitor
monitor
Monthly Average
@ .01 @ .12 WQ or EL
MGD MGD
0.01 0.12
30.0 30.0 WQ
monitor 11.0 WQ
30.0 30.0 EL
200.0 200.0 WQ
, - 6-9 WQ
nit r 28.0 EL
tor monitor
r monitor
onito4 monitor
Limits Changes Due To:
Change in 7Q10 data
New regulations/standards
New procedures
New facility information
Change in stream classification
Other
Parameters) Affected
Fecal, NH3, 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.
OR
No parameters are water quality limited, but this discharge may affect future allocations.

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TOXAWAY FALLS - Allowable Waste Concentrations
SUMMER
Residual Chlorine
•Ammonia as NH3
7010 (CFS)
2.3: 07010 (CFS)
2.3
DESIGN FLOW (MGD)
0.12' .., DESIGN FLOW (MGD)
0.12
DESIGN FLOW (CFS)
0.186 W. DESIGN FLOW (CFS)
0.186
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 (%)
7.4818986 44 IWC (%)
7.481899
Allowable Concentration (ug/I)
227.21505$#: Allowable Concentration (mg/l)
10.64516
ff 'H
Y.kYS{
WINTER
'':'A;:''' Ammonia as NH3
L A
07010 (CFS)
5
:$ DESIGN FLOW (MGD)
0.12
:.x DESIGN FLOW (CFS)
.ti
0.186
STREAM STD (MG/L)
1.8
A UPS BACKGROUND LEVEL (MG/L)
0.22
$IWC %
3.586579
Allowable Concentration (mg/I)
44.27312
NC0052043
DAG 11/2/92

• t 01/21/1997 15:40 7042516452
PAGE 01
Post-ir Fax Note
0,
a
• c
• SOC PRIORITY PROJECT: No X
IF YES, SOC NUMBER
TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
ATTENTION: Jule Shanklin
DATE: November 9, 1992
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY Transylvania
PERMIT NUMBER NC0052043
- GENERAL INFORMATION
1. Facility and Address: Toxaway Falls, Inc.
US Highway 64
Lake Toxaway, N. C. 28748
2. Date of Investigation: October 29, 1992
3. Report Prepared By: W. E. Anderson i4
4. Persona Contacted and Telephone Number:
Thomaa Naraa3.ona
704-966-9226
5. Directions to Site: Toxaway Falls, Inc. is located on the left
just west of the Us 64 bridge over Toxaway Fails. Turn into the
property and proceed down the road on the right of the buildings.
Keep going downhill until you come to the treatment plant at the
end of the road. You can get to the plant without four wheel
drive, but getting back up the hill will be a challenge.
6. Discharge Point(s), List for all discharge points:
Latitude: 35°07'21" Longitude: 82°55'47"
Attach a USCS map extract and indicate treatment facility Bite and
discharge point on map_
U.S.G.S. Quad No. 185-SW(G7SW)U.S.G.S. Quad Name Reid
7_ Site Size and expansion area consistent with application? N/A
Yes No If No, explain:
Page 1

0.1/21/1997 15:40 7042516452 PAGE 02
N c
8.. Topography (relationship to flood plain included):. Steep, above
flood plain.
9. Location of nearest dwelling: Greater than 500 feet
10. Receiving stream or affected surface waters: Toxaway River
a.
b.
c.
Classification: "C"
River Basin and Subbasin No•: Savannah 031302
Describe receiving stream features and pertinent .downstream
uses: The State has designated the Toxaway River a "Natural"
River downstream from this discharge.
PART - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
Type of wastewater to• be permitted Domestic MGD
Design capacity) 0.010 MGD
What is the current permitted capacity of the
Treatment facility? 0.100 MGD
(Ultimate
Wastewater
Actual treatment capacity of the current facility (current
design capacity 0.010 MGD
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two years:
N/A
o. Please provide a description of existing.ox substantially
constructed wastewater treatment facilities: There is an
existing 10,000 GPD extended aeration package treatment
plant.
f. Please provide a description of proposed wastewater treatment
facilities: N/A
Possible toxic impacts to surface waters: Chlorine
h. Pretreatment program (POTWs only); N/A
in development approved
should be required not needed
g•
2. Residuals handling and utilization/disposal scheme: .The specified
general sludge disposal method is not applicable to this facility
at present, the facility is not accessible to a tanker truck.
a. If residuals are being land applied, please specify DEM
Permit Number
Residuals Contractor
Telephone Number
b. Residuals stabilization: None PSRP PERP _ OTHER _
Page 2

0.1/21/1997 15:40 7042516452 PAGE 03
c. Landfill:
d. Other disposal/utilization scheme (Specify) :
3. Treatment plant classification (attach completed rating sheet):
Class II
4. SIC Codes(s): 4952
Wastewater Code(s) of actual wastewater, not particular facilities
i.e., non -contact cooling water di scharge from a metal plating
company would be 14, not 56.
Primary 06 Secondary
Main Treatment Unit Code: 060-0
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds
or are any public monies involved. (municipals only)? N/A
2. Special monitoring or limitations (including toxicity) requests:
None.
3. Important SOC, JOC, or Compliance Schedule dates: (Please
indicate) N/A
Submission of Plans and Specifications
Begin Construction
Complete Construction
Date
4. Alternative Analysis Evaluation: Has the facility evaluated all
of the non -discharge options available. Please provide regional
perspective for each option evaluated.
Spray Irrigation: N/A
Connection to Regional Sewer System: N/A
Subsurface: N/A
Other disposal options: This site is very steep and remote from a
public sewer. Known alternate disposal, options are not practical
at this time.
5. Other Special Items: N/A
Page 3

;101121/1997 15:40 7042516452 PAGE 04
PART IV - EVALUATION AND RECOMMENDATIONS
This is a request to renew an existing permit for discharge of
100,000 gpd of treated wastewater to the Toxaway River.
Renewing the permit• with the consideration that the existing
facility is 10,000 gpd is recommended.
Si •L. - re of Report Preparer
ater Quality Regional. Supervisor
Date
Page 4