NC0025461_Permit (Issuance)_19961125

NPDES DOCUHENT SCANNING COVER SHEET
NC0025461
Bakersville WWTP
NPDES Permit:
Document Type:
hermit Issuance,"
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Special Order by Consent (SOC)
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
November 25, 1996
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State of North Carolina
Cepartment of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Charles Vines, Mayor
Town of Bakersville
P.O. Box 53
Bakersville, North Carolina 28705
Dear Mayor Vines:
November 25, 1996
Subject: NPDES Permit Issuance
Permit No. NC0025461
Town of Bakersville WWTP
Mitchell County
In accordance with your application for discharge permit received on July 17, 1996 by the Division, we
are forwarding herewith the subject permit to discharge under the subject state - NPDES permit. This permit is
issued pursuant to the requirements of North Carolina General Statute 143-215 .1 and the Memorandum of
Agreement between North Carolina and the U.S. Environmental Protection Agency dated December 6, 1983 and
as subsequently amended.
Please note Part III, Special Condition E, which has been placed in your permit. This condition states that
within 180 days after issuance of this Permit, the permittee shall investigate infiltration and inflow to the waste-
water treatment plant because of its higher than expected wastewater flow to the plant and submit a report to the
Division of Water Quality, Permits and Engineering Unit, Post Office Box 29535, North Carolina 27626-0535.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following
receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings, Post Office Drawer
27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and
binding.
Please take notice that this permit is not transferable except after notice to the Division of Water Quality.
Part 11, E.4. addresses the requirements to be followed in case of change in ownership or control of this
discharge. The Division of Water Quality may require modification or revocation and reissuance of the permit.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Water Quality or permits required by the Division of Land Resources, the Coastal Area Management
Act or any other Federal or Local govemmental permit that may be required.
If you have any questions concerning this permit, please contact Mary Cabe at telephone number (919)
733-5083, extension 518.
Sincerely,
Original Signed By
Dp-ire
A. Preston Howard, Jr., P. E.
cc: Central Files
Mr. Roosevelt Childress, EPA
Asheville Regional Office/Water Quality Section
Permits & Engineering Unit
Facility Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NC0025461
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Town of Bakersville
is hereby authorized to discharge wastewater from a facility located at
Town of Bakersville Wastewater Treatment Plant
intersection of NC Highway 226 & NCSR 1278
west of Bakersville
Mitchell County
to receiving waters designated as Cane Creek in the French Broad River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and IV hereof.
The permit shall become effective January 1, 1997.
This permit and the authorization to discharge shall expire at midnight on December 31, 2001.
Signed this day November 25, 1996.
Original Signed By
David A. Goo '
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0025461
SUPPLEMENT TO PERMIT COVER SHEET
Town of Bakersville
is hereby authorized to:
1. Continue to operate the existing 0.075 MGD wastewater treatment plant consisting of: an
influent pump station, bar screen, flow splitter, three 0.025 MGD extended aeration package
plants in parallel each with a clarifier and sludge return, with two trains having sludge holding
tanks, effluent chlorination, post aeration and flow measuring and totalizing equipment located
at Town of Bakersville Wastewater Treatment Plant, intersection of NC Highway 226 & NCSR
1278, west Bakersville, Mitchell County (See Part III of this Permit), and
2. Discharge from said treatment works at the location specified on the attached map into Cane
Creek which is classified Class C-Trout waters in the French Broad River Basin.

ROAD CLASSIFICATION
PRIMARY HIGHWAY
HARD SURFACE
SECONDARY HIGHWAY
HARD SURFACE t
LIGHT -DUTY ROAD. HARD OR
IMPROVED SURFACE
UNIMPROVED ROAD = = _
Latitude 36�00'50" Longitude 82°09'55"
Map # C10SW Sub -basin 04-03-06
Stream Class C-Trout
Discharge Class
Receiving Stream
01 03 10
Cane Creek
Design C? 0.075 MGD Permit expires:12/31/01
NORMANYILte 5 O MI / I TENN. 3 140 000 FEE1
SPRUCE PINE II MI
0
SCALE 1:24 000
0
1 MILE
.,.,..,.r...n;..
�ess.Mc
7000 FEET
r r. .. .:�
1
0
1 KILOMETER
CONTOUR INTERVAL 40 FEET
Town of Bakersville
NC0025461
Mitchell County
WWTP

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NC0025461
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
Discharge Limitation:
Monthly Avq
Flow 0.075 MGD
BOD, 5 day, 20°C" 30.0 mg/I
Total Suspended Residue** 30.0 mg/I
NH3 as N
Fecal Coliform (geometric mean) 200.0 /100 ml
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Weekly Avq. Daily Max
45.0 mg/I
45.0 mg/I
(40 100 ml
sr3
Monitoring
Measurement
Frequency
Continuous
Weekly
Weekly
2/Month
Weekly
2/Week
Weekly
Semi-annually
Semi-annually
Requirements
Sample
Type
Recording
Composite
Composite
Composite
Grab
Grab
Grab
Composite
Composite
*Sample
Location
I or E
E,I
E,I
E
E
E
E
E
E
* Sample locations: E - Effluent, I - Influent
** The monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value
(85% removal).
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored 2/month 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. NC0025461
E. The permittee shall investigate infiltration and inflow to the wastewater treatment plant because
of its higher than expected wastewaster flow to the plant and submit a report to the below address
within 180 days fium effective date of this permit.
Division of Water Quality
Permits and Engineering Unit
P.O. Box 29535
Raleigh, North Carolina 27626-0535

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NC0025461
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 Characteristics
Flow
BOD, 5 day, 20°C
Total Suspended Residue
NH3 as N
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
Discharge Limitations
Monthly Avg.
0.075 MGD
30.0 mg/I
30.0 mg/I
200.0 /100 ml
Weekly Avct
Daily Max
45.0 mg/I
45.0 mg/I
400.0 /100 ml
64.0 µg/I
Monitoring
Measurement
Frequency
Continuous
Weekly
Weekly
2/Month
-2 Mamr Weekly
2/Week
Weekly
Semi-annually
Semi-annually
Requirements
Sample
Type
Recording
Composite
Composite
Composite
Grab
Grab
Grab
Composite
Composite
*Sample
Location
I or E
E,I
E,I
E
E
E
E
E
E
* Sample locations: E - Effluent, I - Influent
weekly
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored-24meah.,at the effluent by grab
sample. o
05 /p e v4L. FoR (3ob TES
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part III Permit No. NC0025461
E. Nutrient Condition for Permits Without Phosphorus Limits
This permit may be modified, or revoked and reissued to include an effluent limitation on nutrients
for this discharge depending upon the following:
1. The findings of a study by the Division of Environmental Management determine nutrient
control is necessary.
2. Local actions do not successfully reduce the nutrient loading on the receiving waters.
3. The onset of problem conditions in the receiving waters.
0/.D
•

NC0025461
Facility: Town of Bakersfield
Discharge to: Cane Creek
Stream class and index #: C-Tr, 7-2-59
Residual Chlorine
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (UG/L)
IWC (%)
Allowable Conc. (ug/l)
Fecal Limit
Ratio of 31.0 :1
3.6
0.075
0.11625
17.0
0
3.13
543.45
200/100m1
Ammonia as NH3
(summer)
7010 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL (MG/L)
IWC (%)
Allowable Concentration (mg/I)
Ammonia as NH3
(winter)
3.6
0.075
0.11625
1.0
0.22
3.13
25.15
minimum = 2
7010 (CFS) 5
DESIGN FLOW (MGD) 0.075
DESIGN FLOW (CFS) 0.11625
STREAM STD (MG/L) 1.8
UPS BACKGROUND LEVEL (MG/L) 0.22
IWC (%) 2.27
Allowable Concentration (mg/I) 69.76
minimum = 4

6,
FACILITY INFORMATION
Facility
NPDES No.
Design Flow (MGD)
Facility Class
Staff Review and Evaluation
NPDES Wastewater Permit
Town of Bakersville WWTP
NC0025461
0.075
II
STREAM CHARACTERISTICS
`"cream Name Cane Creek
Stream Class C-Tr
Sub -basin 04-03-06
Drainage Area (mi2) 22.4
S7Q10 (cfs) 3.6
W7Q10 (cfs) 5.0
30Q2 (cfs) 8.0
IWC (%) 3.1%
Proposed Changes
Parameters Affected
Basis for change(s)
Monitoring Frequencies
fecal coliform, pH
Class II plant and 2B .0500 regs
85% Removal Language
BOD5 and TSS
40 CFR 133.102
Compliance Schedule: n/a
Special Condition(s): Drop nutrient limit reopener since not NSW waters
Permits & Engineering Comments: WET test was dropped at last renewal. Fecal coliform limit
violated 5 times, TSS 3 times, and flow once in last 12 months. Previous WLA indicated that facility
was planning to install dechlorination. However, no request for dechlor. installation has been
received. Region comment needed on progress for dechlorination or if WET should be reinstated.
Prepared by: Co.
Greg lstiAch
'.a
Ol
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Regional Office Evaluation and Recommendations:
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