NC0058891_Permit Issuance_19971118

NPDES DOCUHENT SCANNING COVER SHEET
NC0058891
Valley Creek WWTP
NPDES Permit:
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Report
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
November 18, 1997
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State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Leonard Cottom
Hawksnest Utilities
2058 Skyland Drive
Boone, North Carolina 28604
Dear Mr. Cottom:
ATA
DENR
November 18, 1997
Subject: NPDES Permit Issuance
Permit No. NC0058891
Valley Creek WWTP
Watauga County
In accordance with the application for a discharge permit received March 3, 1997, 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.
The following items must be addressed within the time frame specified below:
• Plans and specifications and a request for an Authorization to Construct for the
installation of a suitable flow measuring device must be submitted within 90 days.
The new flow meter must be installed within 180 days after permit reissuance.
Plans and specifications and a request for an Authorization to Construct for the
installation of a pumping system and relocation of the wastewater influent holding tank
must be submitted within 90 days of permit reissuance. The wastewater influent
holding tank must be relocated and the new piping and/or pumps must be installed
within 180 days after permit reissuance.
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, 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.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
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NPDES Permit Issuance
Permit No. NC0058891
Valley Creek WWTP
Page 2 of 2
If you have any questions concerning this permit, please contact Mr. Jeff Myhra at telephone number
[phone], extension 597.
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
PDES Unit
oint Source Compliance/Enforcement Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
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Permit No. NC0058891
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,
Hawksnest Utilities, Inc.
is hereby authorized to discharge wastewater from a facility located at the
Valley Creek Wastewater Treatment Plant
NCSR 1151
Foscoe
Watauga County
to receiving waters designated as Valley Creek in the Watauga 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, 1998
This permit and the authorization to discharge shall expire at midnight on September 30, 2002
Signed this day November 18, 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

SUPPLEMENT TO PERMIT COVER SHEET
Hawksnest Utilities, Inc.
is hereby authorized to:
Permit No. NC0058891
1. Continue to discharge wastewater from a 0.01 MGD wastewater treatment plant consisting of
a wastewater influent holding tank, bar screen, aeration basin, clarifier with sludge return,
aerated sludge holding, tablet chlorinator, chlorine contact chamber, and reaeration chamber
for chlorine reduction, located at Valley Creek Wastewater Treatment Plant, NCSR 1151,
Foscoe, Watauga County (See Part III of this Permit), and
2. Discharge at the location specified on the attached map into Valley Creek which is classified
Class C-Trout waters in the Watauga River Basin.
3. After receiving an Authorization to Construct from the Division of Water Quality, expand the
plant to 0.90 MGD.

4
ROAD CLASSIFICATION
PRIMARY HIGHWAY
HARD SURFACE
SECONDARY HIGHWAY
HARD SURFACE
LIGHT•DUTY ROAD, HARD OR
IMPROVED SURFACE
UNIMPROVED ROAD = =
Latitude 36°08'50" Longitude 81°48'43"
Map # C11NE Sub -basin 04-02-01
Stream Class C - TR
Discharge Class 06
Receiving Stream Valley Creek
Design Q 0.01 MGD Permit expires 09/30/02
0
SCALE 1:24 000
0
1 MILE
7000 FEET
1
0
1 KILOMETER
CONTOUR INTERVAL 40 FEET
Valley Creek WWTP
NC0058891
Watauga County

A.(1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No NC0058891
During the period beginning on the effective date of the permit and lasting until expansion above 0.01 MGD, 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
0.01 MGD
Continuous
Recorder
I or E
ROD, 5 day, 20"C
30.0 mq/l
45.0 mg/I
Weekly
Grab
E
Total Suspended Residue
30.0 mq/I
45.0 mg/I
Weekly
Grab
E
NH3 as N (April 1 10 October 31)
16.0 mg/l
2 / Month
Grab
E
NH3 as N (November 1 to March 31)
2 / Month
Grab
E
Dissolved Oxygen?
Weekly
Grab
E, U, D
Fecal Coliform (geometric mean)
200 / 100 ml
400 / 100 ml
Weekly
Grab
E, U, D
Total Residual Chlorine
28 ug/I
2 / Week
Grab
E
Temperature
Weekly
Grab
F, U, D
Conductivity
Weekly
Grab
U, D
pH3
Weekly
Grab
E
Notes:
2
3
Sample locations: E - Effluent, I - Influent, U - Upstream at least 50 feet above the discharge point, D - Downstream at NC Highway 105 Stream samples shall
be grab samples and shall be conducted weekly.
The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/I.
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.
CI
ffl nt-Lir it-ation aad-Monitoring Requirements page.

A.(2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NC0058891
During the period beginning upon expansion above 0.01 MGD 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
Location1
Flow
0.90 MGD
Continuous
Recorder
I or E
BOD, 5 day, 20°C
30.0 mg/I
45.0 mg/I
Weekly
Composite
E
Total Suspended Residue
30.0 mg/I
45.0 mg/I
Weekly
Composite
E
NH3 as N (April 1 to October 31)
2.0 mg/I
2 / Month
Composite
E
NH3 as N (November 1 to March 31)
4.0 mg/I
2 / Month
Composite
E
Dissolved Oxygen2
Weekly
Grab
E, U, D
Fecal Coliform (geometric mean)
200 / 100 ml
400 / 100 ml
Weekly
Grab
E, U, D
Total Residual Chlorine
21 µg/I
2 / Week
Grab
E
Temperature4
Weekly
Grab
E, U, D
Total Nitrogen (NO2 + NO3 + TKN)
Semi-annually
Composite
E
Total Phosphorus
Semi-annually
Composite
E
Conductivity
Weekly
Grab
U, D
pH3
Weekly
Grab
E
Notes:
' Sample locations: E - Effluent, I - Influent, U - Upstream at least 50 feet above the discharge point, D - Downstream at NC Highway 105. Stream samples shall
be grab samples and shall be conducted weekly.
2 The daily average dissolved oxygen effluent concentration shall not be Tess than 6.0 mg/I.
3 The pH shall not be Tess than 6.0 standard units nor greater than 9.0 standard units.
" The instream temperature shall not be increased by more than 0.5°C (0.9°F) due to this discharge, but in no case to exceed 20°C (68"F).
There shall be no discharge of floating solids or visible foam in other than trace amounts.
e I ' ions a plica a to the subje facilit li ent t fflu

Permit No. NC0058891
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A . (3) . Authorization to Construct Requirement
The Permittee must get an authorization to construct from the Division of Water
Quality prior to upgrading the treatment facility to 0.90 MGD.

DIVISION OF WATER QUALITY
April 15, 1997
MEMORANDUM
TO: File
FROM: Jeff Myhra
DATE: April 15, 1997
SUBJECT: Permit file review for Hawksnest Utilities, Inc. (NC0058891)
Facility Information:
Qw = 0.01 MGD
Valley Creek
04-02-01
Stream Class:
Valley Creek
Class: C-TR
Date: 7-1-73
Index No. 8-4
Facility is currently permitted for a maximum plant capacity of 0.01 MGD. The facility has
requested an expansion to 0.9 MGD, but to date an authorization to construct has not been
issued for this expansion.
DMR Data Review (1997, 1996, and 1995 DMR data was reviewed). It appears that the
facility is currently operating within the specifications of the permit except for the violations
identified below:
• BOD violation January 1997. Monthly average reported was 48.10
mg/1 (limit is 30.0 mg/1)
BOD violation January 1996. Monthly average reported was 37.10
mg/1 (limit is 30.0 mg/1)
• Compliance sampling inspection was performed by Beth Morton and Jenny Rankin on
February 20, 1997. Results confirmed that the facility was in compliance except for the
following issues (Region recommends that the following issues be addresses at
the time of permit renewal):
• The flow meter is broken. A portable meter was on site which has a
broken flow recorder chart. Plans and specification and a request for an
A to C review for the installation of a suitable flow measuring device
must be submitted within 90 days of permit renewal. The flow meter
must be installed within 180 days after permit renewal.
• A notice of deficiency (NOD) was sent out in reference to the existing
operation of the wastewater influent holding tank (see staff report for
more details). Plans and specification and a request for an A to C
review for the installation of a pumping system and relocation of the
wastewater influent holding tanks must be submitted within 90 days of
permit renewal. The

MEMORANDUM
SUBJECT: Permit file review for Hawksnest Utilities, Inc. (NC0058891)
Page 2 of 2
wastewater influent holding tank must be relocated and new piping
and/or pumps to prevent freezing must be installed within 180 days after
permit renewal.
• Staff report was prepared by Beth Morton on 4-7-97.
• The current treatment capacity is 0.01 MGD. The existing system
consists of a wastewater influent holding tank, bar screen, aeration
basin, clarifier with sludge return, aeration sludge holding, tablet
chlorinator, chlorine contact chamber and reaeration.
• The Region requests that the requirement to monitor for oil and grease
be dropped in the permit renewal. DMR data indicates that this
parameter is not a problem.
• Region stated that Jackie Nowell recommended that when Valley Creek
expands to 0.035 MGD (Although file review did not reveal any
information in reference to expansion to 0.035 MGD), the permit should
allow the permittee a choice of ammonia limits of 5 mg/1 (summer) and
14 mg/1 (winter) or a chronic toxicity limit of 18%. The current permit
does not address these issues. Permit renewal has ammonia limits
developed from mass balance calculation for both flow of 0.01 MGD
and 0.09 MGD.
• Facility is classified as a Class 11 facility.
• Most recent WLA was prepared on 1-23-89 by Jackie Nowell.
• Request to expand the treatment facility to 0.9 MGD was denied. Letter
dated June 30, 1989 stated after public hearing held on May 25, 1989, it
was determined that request will be denied because of the temperature
increase in the receiving stream due to the increased discharge flow.
• Memo prepared by Ruth Clarkgdated June 7, 1989 states that the
discharge of 0.9 MGD has a high probability that it will change the
instream temperature by more than 0.5°C at 7Q10 conditions. This
would violate the instream temperature standard for trout waters.

State of North Carolina
Department of Environment,
Health and Natural Resources
Winston-Salem Regional Office
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
June 20, 1997
MEMORANDUM
TO: JeffMyhra
Permits & Engineering
Avv"A
DEHNR
DIVISION OF WATER QUALITY
-- Water Quality Section --
FROM: VA.Beth Morton
WSRO
D
SUBJECT: atauga County Streamlined permits package comments
Valley Creek WWTP - Hawksnest Utilities
NC0058891
The permittee has not been issued an authorization to construct for the additional
flow, but inquired about it in March, 1996, In May, 1991 an authorization to
construct a 25,000 gpd separate WWTP was issued to Ski Hawksnest in Avery
County. This facility has not been built either. WSRO took Watauga County from
Asheville Regional Office in 1992. Our records are not complete regarding the events
prior to 1992.
The facility chooses ammonia rather than toxicity testing. The facility will need a
compliance schedule to meet ammonia
Hidden Valley, Inc.
NC0065617
The facility is still operating on a system permitted by the Watauga County Health
Dept (John Alley). No authorization to construct has been received by DWQ.
Clevon Woods
NC0070408
This facility has not been built. No authorization to construct has been issued.
Should you have any questions, please contact me at your earliest convenience.
585 Waughtown Street,
Winston-Salem, North Carolina 27107-2241
Voice 910-771-4600
Nen
FAX [phone]
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NC0058891
Facility: Hawksnest Utilities, Onc.
Discharge to: Valley Creek
Stream class and index #: C-TR
Residual Chlorine
7010 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (UG/L)
IWC (%)
Allowable Conc. (ug/I)
Fecal Limit
Ratio of 19.4 :1
Ammonia as NH3
(summer)
0.3 7010 (CFS)
0.01 DESIGN FLOW (MGD)
0.0155 DESIGN FLOW (CFS)
17.0 STREAM STD (MG/L)
0 UPS BACKGROUND LEVEL (MG/L)
4.91 IWC (%)
346.03 Allowable Concentration (mg/I)
Ammonia as NH3
(winter)
7010 (CFS)
200/100m1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL (MG/L)
IWC (%)
Allowable Concentration (mg/I)
0.3
0.01
0.0155
1.0
0.22
4.91
16.10
minimum = 2
0.44
0.01
0.0155
1.8
0.22
3.40
46.65
minimum = 4

N C 0058891
Facility: Hawksnest Utilities, Onc.
Discharge to: Valley Creek
Stream class and index #: C-TR
Residual Chlorine
7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
UPS BACKGROUND LEVEL (UG/L)
IWC (%)
Allowable Conc. (ug/I)
Fecal Limit
Ratio of 0.2 :1
Ammonia as NH3
(summer)
0.3 7Q10 (CFS) 0.3
0.9 DESIGN FLOW (MGD) 0.9
1.395 DESIGN FLOW (CFS) 1.395
17.0 STREAM STD (MG/L) 1.0
0 UPS BACKGROUND LEVEL (MG/L) 0.22
82.30 IWC (%) 82.30
20.66 Allowable Concentration (mg/I) 1.17
minimum = 2
Ammonia as NH3
(winter)
7010 (CFS)
200/100ml DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVEL (MG/L)
IWC (%)
Allowable Concentration (mg/I)
0.44
0.9
1.395
1.8
0.22
76.02
2.30
minimum = 4

. f•
cc: Permits and Engineering
Technical Support Branch
County Health Dept.
Central Files
WSRO
SOC PRIORITY PROJECT: Yes _ No,
To: Permits and Engineering Unit
Water Quality Section
Attention: Jeff Myhra
Date: April 7, 1997
NPDES STAFF REPORT AND RECOMMENDATION PERMIT RENEWAL
Valley Creek WWTP
County Watauga
Permit No. NC0058891
PART I - GENERAL INFORMATION
1. Facility and Address: Mr. Leonard Cottom
Hawksnest Utilities
2058 Skyland Drive
Seven Devils, North Carolina 28604
2. Date of Investigation: February 20, 1997
3. Report Prepared by: Beth Morton
4. Persons Contacted and Telephone Number: Leonard Cottom [phone]
5. Directions to Site: Take 421 to Boone, NC. Take 105 towards Foscoe. Turn right onto State Road
1151 and proceed towards Seven Devils Town Hall. Continue on SR 1151 past the town hall
approximately 0.8 miles to the Hanging Rock Villas on the left. Turn into the Villas, the WWTP is to
the right down the hill.
6. Discharge Points(s), List for all discharge points:
Latitude: 36.08'50" Longitude: 81 " 48' 43"
U.S.G.S. Quad No. C11 NE 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 is not located in the flood plain.
9. Location of nearest dwelling: 400+ feet from the treatment plant up the mountain.
10. Receiving stream or affected surface waters: Valley Creek

NPDES PERMIT STAFF REPORT
April 7, 1997
Page 2
a. Classification C Trout
b. River Basin and Subbasin No.: WAT 04 02 01
c. Describe receiving stream 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. The Country House Village WWTP (NC0033448) discharges into Valley
Creek about 0.7 mil downstream from the Valley Creek WWTP.
Part II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
l . a. Volume of Wastewater to be permitted: 0.01 MGD (Ultimate Design Capacity)
b. What is the current permitted capacity of the Waste Water Treatment facility? 0.01 MGD
c. Actual treatment capacity of the current facility (current design capacity)? 0.01 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;
The facility consists of a wastewater influent holding tank, bar screen, aeration basin, clarifier
with sludge return, aerated sludge holding, tablet chlorinator, chlorine contact chamber and
reaeration.
f. Please provide a description of proposed wastewater treatment facilities. None.
g. Possible toxic impacts to surface waters: None.
h. Pretreatment Program (POTWs only): not needed X
2. Residuals handling and utilization/disposal scheme: Septage pumper for disposal at
municipality.
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 II
4. SIC Code(s): 4952_
Primary Secondary
06 13
Main Treatment Unit Code: 06 0 X 7

NPDES PERMIT STAFF REPORT
April 7, 1997
Page 3
PART III - OTHER PERTINENT INFORMATION
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:
We request that the oil and grease monitoring be removed from the permit. The analyses for oil and
grease indicate no problems.
Per our files, Jackie Nowell recommended that when Valley Creek expands to 0.035 MGD, the permit
should allow the permittee a choice of NH3-N limits of 5 mg/1(Summer) and 14 mg/1(Winter) or a
chronic toxicity limit of 18%. (7Q10 flow =0.3) The current permit does not include or address these
limits.
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
The last compliance sampling inspection found several deficiencies that need to be addressed by the new permit.
1) The flow meter is broken. A portable meter was on site, which had a flow recorder chart that was
broken.
Plans and Specifications and a request for Authorization to Construct for the installation of a suitable
flow measuring device must be submitted within 90 days of reissuance. The new flow meter must be
installed within 180 days after reissuance.
2) The wastewater influent holding tank must pump the wastewater a considerable distance to the
treatment plant. The current system consists of an old underground storage tank with pumps exposed
to the elements located on top of the tank. In the winter, the pumps freeze and surges of wastewater
are discharged to the plant which are septic. The Permittee has responded to our Notice of Deficiency
(NOD) by proposing to move the holding tank to the wastewater plant and to install new pumps/piping
to prevent freezing.
Plans and Specifications and a request for Authorization to Construct for the installation of a pumping
system and relocation of the wastewater influent holding tank must be submitted within 90 days of
permit reissuance. The wastewater influent holding tank must be relocated and new piping and/or
pumps must be installed within 180 days after permit reissuance.

NPDES PERMIT STAFF REPORT
April 7, 1997
Page 4
A review of the self -monitoring results for the period January to December 1996 indicates only one BODS
violation in January. Recommendation is made to renew the permit in accordance with division policy.
Signature of report preparer
Water Quality Regional Sum isor
Date