NC0025879_Permit (Issuance)_19971110

NPDES DOCW TENT SCANNIN` COVER SHEET
NC0025879
Robbinsville WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File
- Historical
Report
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
November 10, 1997
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content on the reYerse side

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Mayor Bobby Cagle, Jr.
Town of Robbinsville
P.O. Box 126
Robbinsville, North Carolina 28771
AVA
ID E I --I N 1=1
November 10, 1997
Subject: NPDES Permit Issuance
Permit No. NC0025879
Town of Robbinsville WWTP
Graham County
Mayor Cagle:
In accordance with your application for discharge permit received on August 11,
1997, 1997 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.
The following changes have been made to the above referenced permit. The
monitoring frequencies have been updated according to NCAC 2B.0500 regulations:
• BOD, pH, Total Suspended Residue, Total Residual Chlorine and Fecal Coliform
monitoring has been changed from daily to three times per week.
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 II, 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.
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. NC0025879
NPDES Permit Issuance
Town of Robbinsville WWTP
November 10, 1997
Page 2
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 governmental
permit that may be required.
If you have any questions conceming this permit, please contact Mary Cabe at
telephone number [phone], extension 518.
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P. E.
cc: Central Files
Mr. Roosevelt Childress, EPA
Asheville Regional Office/Water Quality Section
NPDES Unit
Point Source Compliance Enforcement Unit

Permit No. NC0025879
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT 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 Robbinsville
is hereby authorized to discharge wastewater from a facility located at
Robbinsville WWTP
U.S. Highway 129
north of Robbinsville
Graham County
to receiving waters designated as Long Creek in the Little Tennessee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and IV hereof.
This permit shall become effective January 1,1998.
This permit and authorization to discharge shall expire at midnight on November 30, 2002.
Signed this day November 10,1997.
Origin! Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0025879
SUPPLEMENT TO PERMIT COVER SHEET
Town of Robbinsville
is hereby authorized to:
1. Continue to operate an existing 0.630 MGD wastewater treatment facility consisting of an
influent lift station, a circular extended aeration plant with center feed clarifier and grit chamber,
ultraviolet disinfection, continuous flow measurement, aerobic sludge digestors, thickeners and
a belt press from a facility located at Robbinsville Wastewater Treatment Plant, on US Highway
129, north of Robbinsville, Graham County (See Part III of this Permit), and
2. Discharge from said treatment works at the location specified on the attached map into Long
Creek which is classified Class C-Trout waters in the Little Tennessee River Basin.

ROAD CLASSIFICATION
PRIMARY HIGHWAY
HARD SURFACE
SECONDARY
SURFACE AR=NCI
UGHT•DUTY ROAD, HARD OR
IMPROVED SURFACE
UNIMPROVED ROAD
Latitude 35°19143u Longitude 83°48'40"
Map # F3 E Sub -basin 40404
Stream Class C-Trout
Discharge Codes 01
Receiving Stream Long Creek
Design Q 0.630 IveD Permit expires 12131 / 02
.•
•
0
SCALE 1:24 000
0
1 MILE
7000 FEET
m
1"
0
1 KILOMETER
CONTOUR INTERVAL 40 FEET
Robbinsville WWTP
NC0025879
Graham County

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NC0025879
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall
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 (April 1 - Oct. 31)
NH3 as N (Nov. 1 - March 31)
Total Residual Chlorine***
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
pH****
Fecal Coliform (geometric mean)
Discharge Limitations
Monthly Avg, Weekly Avg. Daily Max
0.630MGD
30.0 mg/I 45.0 mg/I
30.0 mg/I 45.0 mg/I
4.2 mg/I
11.5 mg/I
200 /100 ml
400 /100 ml
28 µg/I
Monitoring
Measurement
Frequency
Continuous
3/Week
3/Week
Weekly
Weekly
3/Week
Semi-annually
Semi-annually
3/Week
3/Week
Requirements
Sample
Type
Recording
Composite
Composite
Composite
Composite
Grab
Composite
Composite
Grab
Grab
*Sample
Location
I or E
E, I
E, I
E
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).
*** Monitoring for Total Residual Chlorine is required only if chlorine is used a a disinfectant.
* * * * The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

PERMIT NOTES mlc
NC0025879 Town of Robbinsville WWTP 04-04-04
Class III Facility Little Tennessee River Basin
8/7/97 Called facility; please send application and $400 late fee. Also, please have the
Mayor sign the application or submit a letter authorizing Mike Ladd to sign it.
8/11 Received application and late fee, $400. No sludge management plan received.
8/12 Wrote ack letter, requested SR.
9/3 Received SR. Keith Haynes approves renewal.
Sludge is taken to the Cherokee County Landfill as needed.
Receiving Stream: Long Creek C-Trout Index #: 2-190-4-(5)
From Rock Creek to Cheoah River
WLA DAG 5/27/91
Compliance data - No violations
CF Notes - Compliance Inspection, 1/25/94 and 4/25/95, compliant.
Drafting permit:
Monitoring frequencies changed per .0500 regs, effluent limited:
pH, BOD, TSS, Fecal & TRC from daily to 3/week
9/8 To Steve Pellei for review.
Public Notice: 9/24/97 Schedule to Issue: 11/10/97

NC0025879
Town of Robbinsville WWTP
Long Creek C-Tr 2-190-4-(5)
From Rock Creek to Cheoah River
Residual Chlorine
7010 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVE
IWC ('%o)
Allowable Concentration (
Fecal Limit
Ratio of 4.1 :1
4
0.63
0.9765
17.0
0
19.62
86.64
200/100mI
7/1/61
Ammonia as NH3
(summer)
7010 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVI
IWC (%)
Allowable Concentration
Ammonia as NH3
(winter)
4
0.63
0.9765
1.0
0.22
19.62
4.20
7Q10 (CFS) 6
DESIGN FLOW (MGD) 0.63
DESIGN FLOW (CFS) 0.9765
STREAM STD (MG/L) 1.8
UPS BACKGROUND LEVI 0.22
IWC (%) 14.00
Allowable Concentration 11.51

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TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
DATE: August 25, 1997
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY Graham
PERMIT NUMBER NC0025879
PART I - GENERAL INFORMATION
1. Facility and Address: Town of Robbinsville
P. O. Box 126
Robbinsville, N. C. 28771
2. Date of Investigation: April 8, 1997
3. Report Prepared By: Keith Haynes
4.
Persons Contacted and Telephone Number: Mike Ladd, ORC
704-479-6428
5. Directions to Site: From the intersection of SR 1211 and Hwy
129 in Robbinsville, travel north on Hwy 129 0.5 mile to the
wastewater treatment plant on the left.
6. Discharge Point(s), List for all discharge points:
Latitude: 35° 19' 43"
Longitude: 83°,48' 38"
Attach a USGS map, extract and indicate treatment facility site and
discharge point on map.
U.S.G.S. Quad No. F3SE U.S.G.S. Quad Name Robbinsville
7. Size (land available for expansion and upgrading): none
8. Topography (relationship to flood plain included): Relatively
flat but adjacent to bottom of hill. Not in flood plain.
9. Location of nearest dwelling: 200 feet

10. Receiving stream or affected surface waters: Long Creek above
confluence with Cheoah River
a. Classification: C Trout
b. River Basin and Subbasin No.: Little Tennessee River
c. Describe receiving stream features and pertinent downstream
uses: Fish and wildlife propagation, fishing, boating,
swimming.
D4- n4-o4
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Type of wastewater: 100 % Domestic
% Industrial
a. Volume of Wastewater: 0.630 MGD (Design Capacity)
b. Types and quantities of industrial wastewater:none
c. Prevalent:1 toxic constituents in wastewater: n/a
d. Pretreatment Program (POTWs only): n/a
in development approved
should be required not needed
2. Production rates (industrial discharges only) in pounds per day:
n/a
a. Highest month in the past 12 months: lbs/day
b. Highest year in the past 5 years: lbs/day
3. Description of industrial process (for industries only) and
applicable CFR Part and Subpart: n/a
4. Type of treatment (specify whether proposed or existing):
Treatment consists of an influent lift station, a Smith and
Loveless circular extended aeration plant with center feed
clarifier and grit chamber, ultra -violet disinfection,
continuous flow measurement, aerobic sludge digesters,
thickeners, and belt press.
5. Sludge handling and disposal scheme: Aerobic digestion,
thickening, belt press, and off site landfilling at Cherokee
County Landfill, which is lined.
6. Treatment plant classification: Less than 5 points; no rating
(include rating sheet, if appropriate). III

7. SIC Codes (s) :
Wastewater Code(s): Primary 01,03,05 Secondary
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant funds
(municipals only) ? no
2. Special monitoring requests: none
3. Additional effluent limits requests: none
4. Other: none
PART IV - EVALUATION AND RECOMMENDATIONS
It is recommended that the Permit be renewed as requested.
Signature of Relfort Preparer
Rwitift f ,
Water Quality Regional Supervisor
Date

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