NC0069761_Permit Issuance_19980512

NPDES DOCUMENT SCANNINL COVER !;cIEET
Permit:
NC0069761
Beech Mountain / Pond Creek WWTP
NPDES
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
May 12, 1998
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content on the reYerse side

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
May 12, 1998
Mr. Seth Lawless
Town of Beech Mountain
403 Beech Mountain Parkway
Beech Mountain, North Carolina 28604
ii117;1TA
DENR
Subject: Issuance of NPDES Permit NC0069761
Pond Creek WWTP
Watauga County
Dear Mr. Lawless:
The Division received your application for a wastewater discharge permit on March 14, 1997.
Division personnel have reviewed and approved your application. Accordingly, we are forwarding herewith
the attached NPDES discharge 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.
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 note that this permit is not transferable except after notice to the Division. Complete and
submit the enclosed Permit Name / Ownership Change Form if a change in ownership or control of this
discharge occurs. The Division may require modification or revocation and reissuance of the permit.
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 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
NPDES Unit
Point Source Compliance Enforcement Unit
Aquatic Toxicology Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535
An Equal Opportunity Affirmative Action Employer
Telephone [phone] FAX [phone]
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Permit No. NC0069761
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 Beech Mountain
is hereby authorized to discharge wastewater from a facility located at
Pond Creek WWTP
on Locust Ridge Road
near Beech Mountain
Watauga County
to receiving waters designated as Pond 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.
This permit shall become effective June 1, 1998.
This permit and authorization to discharge shall expire at midnight on September 30, 2002.
Signed this day May 12, 1998.
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. NC0069761
SUPPLEMENT TO PERMIT COVER SHEET
Town of Beech Mountain
is hereby authorized to:
1. Continue to operate an existing 0.40 MGD contact stabilization wastewater treatment facility
with influent screening, flow measurement, ultraviolet disinfection and sludge drying beds from
a facility located at Pond Creek Wastewater Treatment Plant, on Locust Ridge Road, near Beech
Mountain, Watauga County (See Part III of this Permit), and
Discharge rom said treatment works at the location specified on the attached map into Pond
Creek which is classified Class C-Trout waters in the Watauga River Basin.

fl
ROAD CLASSIFICATION
PR1mAPv Hh WAY
HAR„ SURFACE
SECON:AP o‹.;HWAY
HARD SLRFACE
LIGHT -DUTY ROAD. HARD OR
IMPROVED SURFACE
UNIMPROVED ROAD
Latitude 36°12'45" Longitude 81 °52'37"
Map # C11 NW Sub -basin 4-02-01
Stream Class C-Trout
Discharge Class 01
Receiving Stream Pond Creek
0
SCALE 1:24 000
0
1 MILE
1-
7000 FEET
0
1 KILOMETER
CONTOUR INTERVAL 40 FEET
QUAD LOCATION
r%._.\.,."
•
Town of Beech Mountain
NC0069761
Watauga County
Pond Creek WWTP

A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SUMMER (April 1 - October 31) Permit No. NC0069761
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall 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-
Locations
Flow
0.40 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C2
30.0 mg/1
45.0 mg/1
Weekly
Composite
E, I
Total Suspended Residue2
30.0 mg/I
45.0 mg/I
Weekly
Composite
E, I
NH3 as N
2/Month
Composite
E
Dissolved Oxygen3
Weekly
Grab
E, U, D
Fecal Coliform (geometric mean)
200 /100 ml
400 /100 ml
Weekly
Grab
E, U, D
Total Residual Chlorine
28 µg/I
2/Week
Grab
E
Temperature
Weekly
Grab
U, D
Temperature
Daily
Grab
E
Total Nitrogen (NO2 + NO3 + TKN)
Semi-annually
Composite
E
Total Phosphorus
Semi-annually
Composite
E
Conductivity .
Weekly
Grab
U, D
Chronic Toxicity4
-
Quarterly
Composite
E
Footnotes:
1 Sample locations: E - Effluent; I - Influent; U - Upstream 100 feet from discharge; D - Downstream 300 feet from discharge.
2 The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal).
3 The daily dissolved oxygen effluent concentration shall not be less than 3.0 mg/1.
4 Chronic Toxicity (Ceriodaphnia) P/F at 51%; January, April, July & October (see Condition A.(3.)).
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the
effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - WINTER (November 1 - March 31) Permit No. NC0069761
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall 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
Locationt
Flow
0.40 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C2
30.0 mg/I
45.0 mg/I
Weekly
Composite
E, I
Total Suspended Residue2
30.0 mg/I
45.0 mg/l
Weekly
Composite
E, I
NH3 as N
2/Month
Composite
E
Fecal Coliform (geometric mean)
200 /100 ml
400 /100 ml
Weekly
Grab
E, U, D
Total Residual Chlorine
28 µg/l
2/Week
Grab
E
Temperature
Weekly
Grab
U, D
Temperature
Daily
Grab
E
Total Nitrogen (NO2 + NO3 + TKN)
Semi-annually
-
Composite
E
Total Phosphorus
Semi-annually
Composite
E
Conductivity
Weekly
Grab
U, D
Chronic Toxicity4
Quarterly
Composite
E
Footnotes:
1 Sample locations: E - Effluent; I - Influent; U - Upstream 100 feet from discharge; D - Downstream 300 feet from discharge.
2 The monthly average BOD5 and Total Suspended Residue concentrations shall not exceed 15% of the respective influent value (85% removal).
3 Chronic Toxicity (Ceriodaphnia) P/F at 51%; January, April, July & October (see Condition A.(3.)).
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the
effluent by grab sample.
There shall be no discharge of floating solids or visible foam in 'other than trace amounts.

Part I
Permit No. NC0069761
A.(3.) CHRONIC TOXICITY MONITORING (Quarterly)
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 51% (defined as treatment two in the procedure document). The permit holder
shall perform quarterly monitoring using this procedure to establish compliance with the permit
April, condition. The tests will be performed during the months of January, A p July and October.
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:
Environmental Sciences Branch
North Carolina Division of Water Quality
4401 Reedy Creek Road
Raleigh, North Carolina 27607
Test data shall 1 e complete and accurate and include all supporting chemical/physical measurements
perfor
med 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.
Sh
ould 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.
QCL P/F Version 9/96

Permit Summary
NC0069761
This is a permit renewal for a facility discharging 0.4 MGD of wastewater
into Pond Creek. Within the pass twenty four months this facility had
violations of BOD5, Total Suspended Residue, Fecal and fail the wet test
twice. There was no significant depletion of dissolved oxygen as a result of
the discharge. Back in 1992 the facility requested toxicity limits rather
than ammonia limits. Permits and Engineering will recommend existing
permit limits with monitoring updated to reflect a class II facility. The
limitation for Total Residual Chlorine has been changed because of a
discharge to trout waters. The region needs to verify facility class and
discuss operation and maintenance with the permittee.

NC0069761
Residual Chlorine
7Q10 (CFS) 0.6
DESIGN FLOW (MGD) 0.4
DESIGN FLOW (CFS) 0.62
STREAM STD (UG/L) 17.0
UPS BACKGROUND LEVE 0
IWC (%) 50.82
Allowable Concentration (___33:45
Fecal Limit
Ratio of 1.0 :1
71t4"/
Ammonia as NH3
(summer)
7010 (CFS) 0.6
DESIGN FLOW (MGD) 0.4
DESIGN FLOW (CFS) 0.62
STREAM STD (MG/L) 1.0
UPS BACKGROUND LEVI 0.22
IWC (%) �6 g2 c (' d
Allowable Concentration 1.75
Ammonia as NH3
(winter)
7Q10 (CFS)
200/100m1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
UPS BACKGROUND LEVI
IWC (%)
Allowable Concentration
0.9
0.4
0.62
1.8
0.22
40.79
4.09

PUBLIC NOTICE
STATE OF NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
POST OFFICE BOX 29535
RALEIGH, NORTH CAROLINA 27626-0535
NOTIFICATION OF INTENT TO ISSUE A STATE NPDES PERMIT
On the basis of thorough staff review and application of Article 21 of Chapter 1.43, General Statutes of
North Carolina, Public Law 92-500 and other lawful standards and regulations, the North Carolina
Environmental Management Commission proposes to issue a permit to discharge to the persons listed
below effective 3/116/98 and subject to special conditions.
Persons wishing to comment upon or object to the proposed determinations are invited to submit same in
writing to the above address no later than 3/1/98 . All comments received prior to that elate will be
• considered in the formulation of final determinations regarding the proposed permit. A public meeting may
be held where the Director of the Division of Environmental Management finds a significant degree of
public interest in a proposed permit.
A copy of the draft permit is available by writing or calling the Division of Environmental Management,
P.O. Box 29535, Raleigh, North Carolina 27626-0535, [phone].
The application and other information may be inspected at these locations during normal office hours_
Copies of the information on file arc available 'Ton request and payment of the costs of reproduction.
All such comments or requests regarding a proposed permit should make reference to the NPDES permit
number listed bolo `.
Date
// f
7? r
A. Preston Howard Jr., P.E., Director
Division of Environmental Management
Public notice of int
ent to issue a State NPDES permit to the following:
1. NPDES No. NC00697(1. Town of Beech Mountain, 403 Beech Mountain Parkway, Beech
Mountain, NC 28694 has applied for a permit renewal for a facility located at Pond Creek Wastewater
Treatment Plant, op Locust Ridge Road, near Beech Mountain, Watauga County. The facility discharges
0.40 MGD of treat!d domestic wastewater from one outfall into Pond Creek, a Class C-Trout stream in the
Watauga River Bann which has a 7Q10 Clow of 0.60 cfs. Dissolved oxygen and total residual chlorine are
water quality limited. For some parameters, the available load capacity of the immediate receiving water
will be consumed. frhis may affect future water quality based. effluent limitations for additional
dischargers within this portion of the watershed.
2. NPDES No. NC0022730. Town of Beech Mountain, 403 Beech Mountain Parkway, .Beech
Mountain, NC 28644 has applied for a permit modification to expand its wastewater treatment capacity for
a facility located at Grassy Gap WWTI', on Grassy Gap Creek Road, near Beech Mountain, Watauga
County. The facility presently discharges 0.040 MGD expanding to 0.080 MG[) of treated domestic
wastewater from one outfall into Grassy Gap Creek, a Class C stream in the Watauga River Basin which
,has a 7Q10 flow of 0.24 cfs. Ammonia is water quality limited. For some parameters, the available load
capacity of the inmi diate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed. _
4141(4171A- vy r4, 7/
1 a

NPDES No.
Design Flow (MGD)
Facility Class
Staff Review and Evaluation
NPDES Wastewater Permit
FACILITY INFORMATION
Facility Town of Beech Mountain -Pond Creek WW1?
NC0069761
0.4 MGD
II
STREAM CHARACTERISTICS
Stream Name Pond Creek
Stream Class C-Tr
Sub -basin 040201
Drainage Area (mi2) 2.0
S7Q10 (cfs) 0.6
W7Q10 (cfs) 0.9
30Q2 (cfs) 1.5
IWC (%) 50.82
Proposed Changes
Parameters Affected
Basis for change(s)
Monitoring frequency
BOD5, TSS,Fecal, Total
Residual Chlorine,Temperature
and pH
2B.0500 rules fro class II plants
Deleted "continually evaluate"
language
Special conditions
Contained in boilerplate
Limitation
Total Residual Chlorine
Standard for Trout water
discharge
Compliance Schedule: none
Special Condition(s): Chronic toxicity pass/fail quarterly
Permits & Engineering Comments:
This is a permit renewal for a facility discharging 0.4 MGD of wastewater into Pond Creek. Within
the pass twenty four months this facility had violations of BOD5, Total Suspended Residue, Fecal and
fail the wet test twice. There was no significant depletion of dissolved oxygen as a result of the
discharge. Back in11992 the facility requested toxicity limits rather than ammonia limits. Permits and
Engineering will recommend existing permit limits with monitoring updated to reflect a class II
facility. The limitation for Total Residual Chlorine has been changed because of a discharge to trout
waters. The region needs to verify facility class and discuss operation and maintenance with the
permittee.
Prepared by:
Regional Office Evaluation and Recommendations:
tJo'eJi'tid.e ittss 'r S Co4/I'.2et
L6 L-
.1.