NC0044954_Permit Issuance_19961223

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0044954
South Stokes High School
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Staff Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
December 23, 1996
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Staff Review and Evaluation
NPDES Wastewater Permit
FACILITY INFORMATION
Facility Stokes Co. BOE- South Stokes High School
NPDES No. NC0044954
Design Flow (MGD) 0.0173
Facility Class I
STREAM CHARACTERISTICS
Stream Name Little Neatman Creek
Stream Class C
Sub -basin 030201
Drainage Area (mi2) 2.07
S7Q10 (cfs) 0.27
W7Q10 (cfs) 0.68
30Q2 (cfs) 0.72
IWC (%) 9.0
Proposed Changes
Parameters Affected
Basis for change(s)
Class I monitoring
Temp.
per regulation 2B .0500
Compliance Schedule: None
Special Condition(s): Chronic Toxicity
Permits & Engineering Comments:
This is a permit renewal for a school septic tank/sand filter system with dechlorination. File review
indicated several fecal, BOD, and TSS violations over past 5 years. Facility failed toxicity only once
in 1993. Permiftee installed dechlorination in 1992. Mass balance calculation for ammonia is 8.8 mg/1.
Even at that level, monitoring data suggest that the facility cannot meet that limit. Because past non-
compliance and the facility's inability to meet ammonia limit, P&E recommends renewal of permit
with continued toxicity requirement at 9.0%.
Prepared by: ->&01",
Regional Office Evaluation and Recommendations:

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
(s c
Mr. Jae3 gran ''`p
Q it\N',
Stokes County Schools
P.O. Box 50
Danbury, North Carolina 27016
Dear Mr. Maranville:
December 23,1996
Subject: NPDES Permit Issuance
Permit No. NC0044954
South Stokes High School
Stokes County
In accordance with the application for a discharge permit received on August 7, 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 I1, E.4. 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 Susan Robson at telephone number (919)
733-5083, extension 551.
Sincerely,
Original Signed By
David A. Go'dri"h
A. Preston Howard, Jr., P.E.
cc: Central Files
Winston-Salem Regional Office
Mr. Roosevelt Childress, EPA
Permits and Engineering Unit
Facility Assessment Unit
Aquatic Survey & Toxicology Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
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Permit No. NC0044954
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,
Stokes County Board of Education
is hereby authorized to discharge wastewater from a facility located at
South Stokes High School
on NCSR 1975
southwest of Ross Store
Stokes County
to receiving waters designated as Little Neatman Creek 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.
This permit shall become effective February 1, 1997
This permit and authorization to discharge shall expire at midnight on January 31, 2002
Signed this day December 23, 1996
Original Signec
David A. Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NC0044954
SUPPLEMENT TO PERMIT COVER SHEET
Stokes County Board of Education
is hereby authorized to:
I. Continue to operate an existing wastewater treatment system consisting of a 19,800 gallon
capacity septic tank, 8,640 gallon capacity dosi'n'g�gg tank, 2,704 square foot surface sandfilter,
f, tablet dechlorinato&a d contact -chamber located at South Stokes High
School, on NCSR 1975, southwest of Ross Store, Stokes County (See Part III of this Permit),
and
CNor1he �"4b1�� .eQAec
Ctn tp ��n e (,o n G\L l c9 v)
2. Discharge from said treatment works at the location specified on the attached map into Little
Neatman Creek which is classified Class C waters in the Roanoke River Basin.

Water
Tank '
South Stokes! 9P0
High Sch !
O•V J 'altn�
Ch \
Discharge point i
- x882 - •
J f •
ROAD CLASSIFICATION
PRIMARY HIGHWAY
HARD SURFACE
LIGHT -DUTY ROAD. HARD OR
IMPROVED SURFACE
SECONDARY HIGHWAY
HARD SURFACE r UNIMPROVED ROAD = _
Latitude: 36°19'26" Longitude- 80'14'18"
Map # B18SW Sub -basin 03-02-01
Stream Class
C
Discharge Class
Receiving Stream
03
Little Neatman Creek
Qw: 0 0172 MGl Permit expires: 1/31/02
1 0 7
CONTOUR INTERVAL 20 FEET
Stokes County Schools
South Stokes H.S.
NC0044954
Stokes County

A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NC0044954
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
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow
0.0173 MGD
Weekly
Instantaneous
I or E
BOD. 5 day, 20"C
30.0 mg / I
45.0 mg / I
2 / Month
Grab
E
Total Suspended Residue
30.0 mg / I
45.0 mg / 1
2 / Month
Grab
E
NH3 as N
Monthly
Grab
E
pH2
2 / Month
Grab
E
Fecal Coliform (geometric mean)
200 / 100 ml
400 / 100 ml
2 / Month
Grab
E
Total Residual Chlorine
2 / Week
Grab
E
Temperature
Weekly
Grab
E
Chronic Toxicity3
Quarterly
Grab
E
Notes:
' Sample locations: E - Effluent, I - Influent
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units..
3 Chronic Toxicity (Ceriodaphnia) P/F at 9.0 %, February, May, August, and November, See Part III, Condition E.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part III Permit No. NC0044954
E. CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised November 1995, or subsequent
versions.
The effluent concentration at which there may be no observable inhibition of reproduction or significant
mortality is 9.0% (defined as treatment two in the procedure document). The permit holder shall perform
quarterly monitoring using this procedure to establish compliance with the permit condition. The tests will be
performed during the months of February, May, August, and November. Effluent sampling for this
testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DWQ Form AT-1 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed
in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent
toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating
the facility name, permit number, pipe number, county, and the month/year of the report with the notation of
"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences
Branch at the address cited above.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement
will revert to quarterly in the months specified above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to
include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day
of the month following the month of the initial monitoring.
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