NC0082384_Permit Issuance_19970122

State of North Carolina
Department 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. James M. Cheshire
c/o Stokes County Public Works
P.O. Box 20
Danbury, North Carolina 27016
Dear Mr. Cheshire:
[DFEE HNI=?L
January 22,1997
Subject: NPDES Permit Issuance
Permit No. NCO082384
Danbury WWTP
Stokes County
In accordance with the application for a discharge permit received on August 6, 1996, the Division is
forwarding herewith the subject 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 US
Environmental Protection Agency dated December 6,1983.
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 this permit is not transferable. Part II, EA. addresses the requirements to be followed
in case of change in ownership or control of this discharge.
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, Coastal Area Management
Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Steve Pellei at telephone number (919)
733-5083, extension 516.
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E.
cc Central Files
Winston-Salem Regional Office
Mr. Roosevelt Childress, EPA
Permits and 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. NCO082384
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
WAML*jMW*MK1jj. ' : I •
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,
County of Stokes
is hereby authorized to discharge wastewater from a facility located at the
Danbury Wastewater Treatment Plant
on NCSR 156`2
in Danbury
Stokes County
to receiving waters designated as the Dan River in the Roanoke 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 March 1, 1997.
This permit and the authorization to discharge shall expire at midnight on January 31, 2002.
Signed this day January 22, 1997.
Original Signed By
David k Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Mangement Commission

PRIMARY HIGHWAY
LIGHT -DUTY ROAD, HARD OR
HARD SURFACE
IMPROVEDSURFACE
SECONDARY HIGHWAY
HARD SURFACE C=3001C=
UNIMPROVED ROAD - -
Latitude: 36024'26" Longitude eoD11'
Map # B18NW Sub -basin 03-02-01
Stream Class WS-V
Discharge Class 01
Receiving Stream Dan River
Qw: n 1 MCD___ Permit expires: 1/31/02
QUAD LOCATION
Danbury WWTP
NCO082384
Stokes County

46
Permit No. NC0082384
SUPPLEMENT TO PERMIT COVER SHEET
County of Stokes
is hereby authorized to:
I. Continue to operate an existing 0.10 MGD extended aeration wastewater treatment plant
consisting of a manual bar screen, a 20,000 gallon aerated flow equalization chamber with dual
150 gpd pumps, dual 50,000 gallon aeration basins with three 250 cfm blowers, dual 16,667
gallon hopper bottom clarifiers, a 20,000 gallon aerobic sludge digester, a 3 module UV
disinfection system, and flow measurement and recording located at Stokes County Wastewater
Treatment Plant, on NCSR 1652, in Danbury, Stokes County (See Part III of this Permit), and
2. Discharge from said treatment works at the location specified on the attached map into the Dan
River which is classified Class WS-V waters in the Roanoke River Basin.

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NCO082384
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 into the Dan River. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT.;CHARACTERISTICS :
e
LIMIT3
: MONITORING' REQUIREMENTS
Monthly
Ave'ra a
Weekly
Avera a ..
Daily
;Maximum :;
Measurement
::: Fre nc ue
Sample
>..< " T e
Sample
:. Locatiorr1:..
Flow
0.10 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C2
30.0 m /l
45.0 m /l
Weekly
Composite
E,
Total Suspended Residue2
30.0 m /I
45.0 m
Weekly
Composite
E, I
NH3 as N
Weekly
Composite
E
H3
Weekly
Grab
E
Fecal Coliform(geometric mean
200 /100 ml
400 / 100 ml
Weekly
Grab
E
Temperature
Weekly
Grab
E
Total Residual Chlorine4
28.0 /l
Dail
Grab
E
Total Nitrogen (NO2+ NO3 + TKN)
Quarterly
Composite
E
Total Phosphorus
Quarterly
Composite
E
Notes:
Sample locations: E - Effluent, I - Influent
2 The Monthly average effluent BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal).
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4 Total Residual Chlorine shall be monitored if Chlorine is added during treatment.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

�12
Staff Review and Evaluation
NPDES Wastewat ennit
FACILITY INFORMATION STREAM CHARACTERISTICS
Facility Stokes County WWTP
NPDES No. NC0082384
Design Flow 0.10 MGD
Facility Class II
Stream Name Dan River
Stream Class WS - V (22-(8))
Sub -basin 030201
Drainage Area (miz) 276
S7Q10 (cfs) 55
W7Q10 (cfs) 79
30Q2 (cfs) 115
IWC (%) 0.3
Proposed Changes
Parameters Affected
Basis for change(s)
Change monitoring frequencies:
from 2/Month to Weekly
BOD, TSR, Fecal Col., pH
per 2B.0500 for class II facility
Change monitoring frequency:
from Monthly to Weekly
NH3
per 2B.0500 for class fl facility
Remove Special Condition E.
Engineering Alter. Analysis
Covered under Spec Cond. D.
Remove Special Condition F.
Disinfection Condition
UV installed under last ATC
-ar eCDE4�- Fcorptw iooa TRC.
Compliance Schedule: None
Special Condition(s): None
Permits & Engineering Comments:
Recommend renewal of NPDFS permit (class TT facility by definition) with existing limits and with
changes noted above. Facility consists of extended aeration package plant with clarifier and sludge return
permitted to discharge 0.10 MGD.
Plant constructed and started discharging in late 1995. NOV sent out March of '96 attributable to start up
complications. For the months of January to present only one fecal violation (July'96) due to UV equipment
that required cleaning. Second NOV sent out in May '96 threatened revocation due to non-payment of
annual fee.
Parameters are effluent limited du high assimilative pacity of Dan River. Region please confirm
site is a class II facility.
� r
Prepared by:
Steven D. Pellei
Regional Office Evaluation and Recommendations:

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