NC0067024_Permit Issuance_19970922

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
September 22, 1997
Mr. David J. Triplett
Watauga County Board of Education
P.O. Box 1790
Boone, North Carolina 28607
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Subject: NPDES Permdt Issuance
Permdt No. NCO067024
Valle Crucis Elementary School
Watauga County
Dear Mr. Triplett:
In accordance with the application for a discharge permit received on March 13, 1997, the Division is
forwarding herewith the subject NPDES pern-dt. This pern-dt 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 Adn-dnistrative
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 pern-dt 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 Mack Wiggins at telephone number
[phone], extension 542.
Sincerely,
Original Signed BY
David A. Goodrich
A. Preston Howard, Jr., P.E.
cc: Central Files
Winston-Salem Regional Office, Water Quality Section
Mr. Roosevelt Childress, EPA
t
p iance Enforcement 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. NCO067024
: 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,
Watauga County Board of Education
is hereby authorized to discharge wastewater from a facility located at
Valle Crucis Elementary School
on Broadstone Road
Valle Crucis
Watauga County
to receiving waters designated as Dutch Creek in the Watauga River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
H, III, and IV hereof.
This permit shall become effective November 1, 1997.
This permit and authorization to discharge shall expire at midnight on September 30, 2002.
Signed this day September 22,1997.
Original 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. NCO067024
SUPPLEMENT To pERmIT COVER SHEET
Watauga County Board of Education
is hereby authorized to:
1. Continue to operate an existing 0.0065 MGD extended aeration facility consisting of a septic
tank, flow equalization tank, aeration system, clarifier, chlorination unit, dechlorination unit and
sludge holding located at Valle Crucis Elementary School, on Broadstone Road, Valle Crucis,
Watauga County (See Part HI of this Pennit), and
2. Discharge from said treatment works at the location specified on the attached map into Dutch
Creek which is classified Class B-Trout waters in the Watauga River Basin.

2,
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NO'
00,
0
cis'
0
ly Cross
M
.4)MILI
I MILE
SECONDARY Hr.HWAY 0 700 0 FEET
HARDSURFACE UNIMPROVED ROAD
0 1 KILOMETER
Latitude: 36012'3 Longitude: 81'4 '39" Boom in 4M I-- - -
Map# C1 1 NE Sub -basin 040201 CONTOUR INTERVAL 40 FEET
Stream Class -B-Trout QUAD LOCATION Valle Crucis Elementary
Discharge Class 03-Domestic School
Receiving Stream Dutch Creek NCO067024
Permit exp. 09/30/2002 ()w 0.0065 MGD Watauga County

A. (). EFFLUENT LIMHATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO067024
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfail(s) serial number 001. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics
Flow
BOD, 5 day, 200C
Total Suspended Residue
NI-13 as N
Fecal Coliform (geometric mean)
Total,Residual Chlorine
Temperature
Discharge Limitations
Monthly Ayg.
0.0065 MGD
30.0 mg/I
30.0 mg/I
200 /100 ml
Weekly AvgL Daily Max
45.0 mg/I
45.0 mg/I
400 /100 ml
28 ug/I
Monitoring
Requirements
A
Measurement
Sample
*Sample
Frequency
jy-p e
Location -
Weekly
Instantaneous
I or E
2/Month
Grab
E
2/Month
Grab
E
Monthly
Grab
E
2/Month
Grab
E
2/Week
Grab
E
Weekly
Grab
E
*Sample locations: E - Effluent, I - Influent, U - Upstream 50 feet above the discharge point, D - Downstream 50 feet below the discharge
point.
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. .

Permit Summary
NCO067024
This is a permit renewal for a discharge into Dutch Creek in the Watauga
River. Basin. This facility seems to be well operated. Within the past
twenty four months this facility had only one violation of permit limits.
The violation was fecal coliform back in April, of 95. Downstream
temperature values were above 20' C at times during August 95, June 96
and once during June 95. Permits and Engineering will recommend existing
limitations with monitoring reflective of a class II facility. Region must
verify facility class and precisely describe components.

NCO067024
Residual Chlorine
Ammonia as NH3
(summer)
7010 (CFS)
2.6
7Q10 (CFS)
2.6
DESIGN FLOW (MGD)
0.0065
DESIGN FLOW (MGD)
0.0065
DESIGN FLOW (CFS)
0.010075
DESIGN FLOW (CFS)
0.0101
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
UPS BACKGROUND LEVE
0
UPS BACKGROUND LEVI
0.22
IWC (%)
0.39
1WC (%)
0.39
Allowable Concentration
4404.10
Allowable Concentration
202.29
Ammonia as NH3
(winter)
7Q10 (CFS)
3.8
Fecal Limit
200/1 oomi
DESIGN FLOW (MGD)
0.0065
Ratio of 258.1 :1
DESIGN FLOW (CFS)
0.0101
STREAM STD (MG/L)
1.8
UPS BACKGROUND LEVI
0.22
1WC (%)
0.26
Allowable Concentration
597.73

cc: Permits and Engineering
Technical Support Branch
County Health Dept.
Central Files
WSRO
SOC PRIORITY PROJECT: Yes _ NoX
To: Permits and Engineering Unit
Water Quality Section
Attention: Mack Wiggins
Date: March 31, 1997
NPDES STAFF REPORT AND RECOMMENDATION PERMIT RENEWAL
County Watauga
Permit No. NCQQ6lQ2,4
PART I - GENERAL INFORMATION
I Facility and Address: Mr. David Triplett
Watauga County Schools- Valle Crucis
P.O. Box 1790
Boone, NC 28607
2. Date of Investigation: February 12, 1997
3. Report Prepared by: Beth Morton
4. Persons Contacted and Telephone Number: David Triplett [phone] and James Hodges, ORC
[phone]
5. Directions to Site: Take 421 to Boone, NC. Take 105 South towards Valle Crucis.Turn right when
you cross the Watauga River on Broadstone Road (NC SRI 112). This road also to towards the Mast
General Store. The school is located on the right side of the road.
6. Discharge Points(s), List for all discharge points:
Latitude: 36*12'37" Longitude: 81' 46' 39"
U.S.G.S. Quad No. CI I U.S.G.S. Quad Name Valle Crucis
7. Site size and expansion area consistent with application? Yes X No If No, explain:
8. Topography (relationship to flood plain included): The facility isAlocated in a db flood plain.
9. Location of nearest dwelling: 1000+ feet from the treatment plant.
10. Receiving stream or affected surface waters: Dutch Creek
a. Classification B Trout

NPDES PERMIT STAFF REPORT
March 31, 1997
Page 2
b. River Basin and Subbasin No.: WAT 04 02 01
C. Describe receiving strewn features and pertinent downstream uses: The receiving stream is a
rocky mountain stream with fish and wildlife present. Agriculture, recreation and fishing are
pertinent uses.
Part 11 - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
a. Volume of Wastewater to be permitted: 0.0065 MQD (Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste Water Treatment facility? 0.0065 MGD
C. Actual treatment capacity of the current facility (current design capacity)? 0.0065 MGD
d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in
the previous two years. None.
e. Please provide a description of existing or substantially constructed wastewater treatment
facilities;
An extended aeration facility consisting of septic tank, flow equalization tank, aeration system,
clarifier, chlorination unit, dechlorination unit and sludge holding.
f. Please provide a description of proposed wastewater treatment facilities. None.
9. Possible toxic impacts to surface waters: None.
h. Pretreatment Program (POTWs only): not needed X
2. Residuals handling and utflization/disposal scheme: Septage pumper for disposal at Town of
Boone WWTP.
a. If residuals are being land applied, please specify DEM Permit No. NA .
b. Residuals stabilization: NA
C. Landfill: NA
d. Other disposal/utilization scheme (Specify): NA
3. Treatment plant classification (attach completed rating sheet). Class H
4. SIC Code(s): 2211
Primary Secondary
03 NA
Main Treatment Unit Code: 05 0 X 7
PART III - OTHER PERTINENT INFORMATION

NPDES PERMIT STAFF REPORT
March 31, 1997
Page 3
1. Is this facility being constructed with Construction Grant Funds or are any public monies involved. No.
2. Special monitoring or limitations (including toxicity) requests:
The temperature requirement is requested to be made weekly effluent onl . The permit currently
requires daily upstream and downstream. The data from the upstream and downstream indicates no
-impact in temperature from this plant.
Please consider leaving the rest of the monitoring frequencies the same as the current permit. This
school system currently spends $300-00 per month to monitor for the current permit. The cost for
weekly monitoring for a Class H facility will raise the cost to $1000.00 per month per my conversation
with the ORC. The environmental benefit from this additional monitoring is negligible. The school is
usually in compliance.
3. Important SOC, JOC or Compliance Schedule dates: (Please indicate). None.
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge options available.
Please provide regional perspective for each option evaluated. NA because discharge is to a positive
flow stream.
5. Other Special Items: NONE
PART IV - EVALUATION AND RECOMMENDATIONS
An evaluation of the self -monitoring data submitted for the period of December 1995 through November 1996
reveals compliance. with all monthly average limits. Please consider keeping the monitoring frequencies in the
current permit. Additional monitoring would be of little environmental benefit for a school.
Recommendation is made to renew the perniit in accordance with division policy.
Signature of report preparer
/&,t4j�
4(uw�,
Water Quality Regional Supervisor
3 1 ---q -7
Date