NC0024295_Permit (Issuance)_19950724

NPDES DOCUMENT $CANNINO COVER SHEET
NPDES Permit:
NC0024295
Connestee Falls WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Meeting Notes
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
July 24, 1995
This document is printed on reuse paper - ignore any
content on the reYerse side

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:
Transylvania Utility Company
NC0024295 001 and 002
100 % Domestic
Existing
Renewal
French Broad River:
Lower Creek: 002
C Trout
04-03-01
Transylvania
Asheville
Robson
1 / 13 / 95
G 7 NE
001
Request # B8171
B8172
Stream Characteristic:
Pipe #:
MGD:
Drainage Area (mi2):
Summer 7Q10 (cfs):
Winter 7Q10 (cfs):
Average Flow (cfs):
3002 (cfs):
IWC (%):
Permit No. NC0024295
001
0.300
133
93
113
4444
0.5 %
002
0.020
1.04
1.0
1.3
3.1
1.6
3%
Staff Report:
IWC Spreadsheet:
Stream Classification:
Instream Data:
x
nr
x
nr
1994
note discrepancies below
trout
001: first modeled 1977 w/ Secondary limits; reissued w/ same limits since then..
002: first modeled 1977 w/ Secondary limits, (and fecal, chlorine, and pH limits). In 1990, facility was given choice
of toxicity test or ammonia limits; they chose ammonia limits. Note: the winter ammonia limit is based on the winter
7Q10 of 1.3 cfs, but the summer standard of 1.0 mg/I was used in the analysis; therefore under current SOP the
winter allowable would be 68.1 mg/I. Since the facility already has the limit and is meeting it I will not pursue any A.
DMR's
001: well within limits
002: well within limits, (chlorine levels are high)
both facilities seem to be underloaded.
Staff Report
both facilities have received upgrades per DEM inspections
- in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, and III hereof.
The permit shall become effective September 1, 1995
This permit and the authorization to discharge shall expire at midnight on August 31, 2000
Signed this day July 24, 1995
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission
tt („,

Permit No. NC0024295
SUPPLEMENT TO PERMIT COVER SLEET
Transylvania Utility Company
is hereby authorized to:
1. Continue to operate an existing 0.30 MGD extended aeration type wastewater treatment plant
and a 0.02 MGD extended aeration package plant with tertiary filters located at US Highway
276 South, Connestee Falls, Transylvania County (See Part III of this Permit), and
2. Discharge from said treatment works at the location specified on the attached map into French
Broad River and Lower Creek which is classified Class C-Trout waters in the French Broad
River Basin.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NC0024295
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristic*
Flow
BOD, 5 day, 20°C
Total Suspended Residue
NH3 as N
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Discharge limitations
Monthly Avg,
0.30 MGD
30.0 mg/I
30.0 mg/I
Weekly Avg.
Daily Max
45.0 mg/I
45.0 mg/I
Monitoring
Measurement
Frequency_
Continuous
Weekly
Weekly
2/Month
Weekly
Semi-annually
Semi-annually
Requirements
Sample
Tyke
Recording
Composite
Composite
Composite
Grab
Composite
Composite
*Sample
Location
I or E
E
E
E
E
E
E
*Sample locations: E - Effluent, I - Influent
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS SUMMER (April 1 - October 31) Permit No. NC0024295
During the period beginning on the effective date of the permit and lasting until expiration, the Permittcc is authorized to discharge from
outfall(s) serial number 002. Such discharges shall be limited and monitored by the permittce as specified below:
Effluent Characterl_stics Discharge Limitations Monitori_ cr Requlrement_s
Measurement Sample •Sample
Monthly Avg. Weekly Avg, Daily Max Frequency ly_p_g Location
Flow 0.02 MGD Weekly Instantaneous I or E
BOD, 5 day, 20°C 30.0 mg/I 45.0 mg/I Weekly Grab E
Total Suspended Residue 30.0 mg/I 45.0 mg/I Weekly Grab E
NH3 as N 26.0 mg/I Weekly Grab E
Fecal Coliform (geometric mean) 200.0 /100 ml 400.0 /100 ml Weekly Grab E
Total Residual Chlorine 2.55 ug/I 2/Week Grab E
Temperature Weekly Grab E
*Sample locations: E - Effluent, I - Influent
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS WINTER (November I - March 31) Permit No. NC0024295
During the period beginning on the effective date of the permit and lasting until expiration, the Pcrmittee is authorized to discharge from
outfall(s) serial number 002. Such discharges shall be limited and monitored by the permitlee as specified below:
Effluent Characteristics
Flow
BOD, 5 day, 20°C
Total Suspended Residue
NH3 as N
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
pischarge Limitations
MonitoringRequirements
Measurement
Monthly Avg, Weekly Avg, Daily Max Frequency
0.02 MGD Weekly
30.0 mg/I 45.0 mg/I Weekly
30.0 mg/I 45.0 mg/I Weekly
34.0 mg/I Weekly
200.0 /100 ml 400.0 /100 ml Weekly
ug/I 2/Week
Weekly
Sample
Instantaneous
Grab
Grab
Grab
Grab
Grab
Grab
*Sample
Location
I or E
E
E
E
E
E
E
*Sample locations: E - Effluent, I - Influent
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part III
Permit No. NC0024295
E. This shall be mo ' ied, o revoked and rei - d to incorporat - city limitations and
monit• ng requ - ments ' the even toxicity to g or oth- tudies . nduct - • on the effluent
rem' ing stream in • ' - that detrimen .. eff- • may be expec - • . e receiv i g s ' • am = - sult
of 's discharge.
F. In the event that violations of the fecal coliform requirements of the North Carolina water
quality standards occur as a result of this discharge, disinfection will immediately be required and
the permit amended to establish a coliform effluent limitation.

SOC PRIORITY PROJECT: Yes No x
IF YES, SOC NUMBER
TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
ATTENTION: Susan Robson
DATE: February 16, 1995
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY Transylvania _
PERMIT NUMBER NC0024295
PART I - GENERAL INFORMATION
1. Facility and Address:
Transylvania Utility Co.
P.O. Box 240705
Charlotte, North Carolina 28334
2. Date of Investigation: April 26 & 29, 1994
3. Report Prepared By: Kerry S. Becker
4. Persons Contacted and Telephone Number: David Medlin
704-898-5011
704-884-7487
5. Directions to Site: The facility is located on U.S. Hwy 276
at Connestee Falls south of Brevard, NC.
6. Discharge Point(s), List
Latitude: Pipe 001: 35°
Longitude: Pipe 002: 82°
Attach a USGS map extract
discharge point on map.
U.S.G.S. Quad No. 185 NE
for all discharge points:
10' 35"
45' 40"
Pipe 002:
Pipe 002:
35-08-40
82-46-20
and indicate treatment facility site and
U.S.G.S. Quad Name Rosman, NC
7. Site size and expansion area consistent with application?
x Yes No If No, explain:
Page 1

8. Topography (relationship to flood plain included): Steep, not
located within the flood plain (Pipes 001 & 002).
9. Location of nearest dwelling: >100 ft.
10. Receiving stream or affected surface waters: Pipe 001: French
Broad River; Pipe 002: Lower Creek
a. Classification: Pipes 001 & 002: C Trout
b. River Basin and Subbasin No.: FBR 04-03-01
c. Describe receiving stream features and pertinent downstream
uses: Both the French Broad River and Lower Creek are rocky
bottomed, moderately swift moving streams. Both serve as
sites for aquatic life habitat and maintenance. The French
Broad River also is used for water related recreational
activities such as canoeing and fishing. Beginning at the
Mills River confluence, the river takes on a WS
classification for use as a potential water supply for the
City of Asheville.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted Pipe 001: 0.300
and Pipe 002: 0.020 MGD (Ultimate Design Capacity)
b. What is the current permitted capacity of the Wastewater
Treatment facility? Pipe 001: 0.300 MGD; Pipe 002: 0.020 MGD
c. Actual treatment capacity of the current facility (current
design capacity Pipe 001: 0.300 MGD; Pipe 002: 0.020 MGD
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two years:
No A to C has been issued within the past two years.
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: Pipe 001: The
existing facility consists of a concrete flow splitter, dual
aeration basin with mechanical aerators, dual rectangular
clarifiers, effluent chlorination, instrumental flow
measurement, and aerobic sludge digestion, holding and drying
beds. Pipe 002: The existing facility is an extended
aeration package plant with tertiary filter, effluent
chlorination, and aerated sludge holding.
f Please provide a description of proposed wastewater treatment
facilities: None proposed.
Page 2

g•
Possible toxic impacts to surface waters: Chlorine
h. Pretreatment Program (POTWs only):
in development approved
should be required not needed
2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DEM
Permit Number
Residuals Contractor
Telephone Number
b. Residuals stabilization: PSRP PFRP OTHER
C. Landfill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating sheet):
Pipe 001: Class II; Pipe 002: Class II
4. SIC Codes(s): Pipes 001 & 002: 4952
Wastewater Code:
Primary Pipes 001 & 002: 05
Secondary
Main Treatment Unit Code: Pipe 001: 050-7
Pipe 002: 061-7
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)
Submission of Plans and Specifications
Begin Construction
Complete Construction
Page 3
Date

4. Alternative Analysis Evaluation: Has the facility evaluated all of the
non -discharge options available. Please provide regional perspective for
each option evaluated. N/A
Spray Irrigation:
Connection to Regional Sewer System:
Subsurface:
Other disposal options:
5. Other Special Items:
PART IV - EVALUATION AND RECOMMENDATIONS
Transylvania Utilities has recently made improvements to both treatment units
in response to DEM inspections. The facilities have been operating in
compliance with permit limits. It is recommended that the NPDES permit be
renewed.
ater Quality R gional Supervisor
Date
091f
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