WQ0003687_Final Permit_19910118

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
William W. Cobey, Jr., Secretary
January 18, 1991
Mr. J. Paul Fine
Gold Hill Airpark
Post Office Box 345
Gold Hill, North Carolina 28071
George T. Everett, Ph.D.
Director
Subject: Permit No. WQ0003687
(Renewal of Permit No. 12596)
Gold Hill Airpark
Spray Irrigation Wastewater Facility
Rowan County
Dear Mr. Fine:
In accordance with your application received June 11, 1990, we are forwarding herewith
Permit No. WQ0003687, dated January 18, 1991, to Gold Hill Airpark for the continued operation
of the subject Spray Irrigation Wastewater Treatment and Disposal Facility.
This permit shall be effective from the date of issuance until December 31, 1995, shall
hereby void Permit Number 12596, issued December 31, 1985, and shall be subject to the
conditions and limitations as specified therein. Please pay particular attention to the monitoring
requirements in this permit. Failure to establish an adequate system for collecting and maintaining
the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the right to request an adjudicatory hearing upon written request within 30 days
following receipt of this permit. This request must be in the form of a written petition, conforming
to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative
Hearings, P.O. Box 11666, Raleigh, NC 27604. Unless such demands are made this permit shall
be final and binding.
If you need additional information concerning this matter, please contact Mr. Dana Bolden
at 919/ 733-5083.
cc
Rowan County Health
Mooresville Regional
Groundwater Section
Training and Certification Unit (rating unchanged)
Pollution Prevention Pays
E.O. Box 27687, Raleigh, North, Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
SPRAY IRRIGATION SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Gold Hill Airpark
Rowan County
FOR THE
continued operation of a 10,080 GPD wastewater treatment facility consisting of a 1.67 MG
stabilization lagoon, a 2.67 MG storage lagoon, a 1,500 gallon hypochlorination contact tank, a
7.5 hp , 40 gpm pump with high water alarms, a 4.6 acre, five zone spray irrigation area (not yet
constructed), a sewer collection system consisting of approximately 3,085 linear feet of eight inch
gravity sewer, a 1,500 gallon septic tank at each residence, a 1,000 gallon pump station with 0.5
hp submersible pump and high water alarms at residences as required, all associated piping,
valves, sprinklers, and appurtenances to serve 28 residential lots of the Gold Hill Airpark with no
discharge of wastes to the surfacewaters, pursuant to the application received June 11, 1990 and in
conformity with the project plan, specifications, and other supporting data subsequently filed and
approved by the Department of Environment, Health and Natural Resources and considered a part
of this permit.
This permit shall be effective from the date of issuance until December 31, 1995, shall hereby void
Permit Number 12596, issued December 31, 1985, and shall be subject to the following specified
conditions and limitations:
1. PERFORMANCE STANDARDS
1. Upon completion of construction of all facilities and prior to operation of the spray area,
a certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
27687, Raleigh, NC 27611.
2. The Mooresville Regional Office, phone no. [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an
in -place inspection can be made. Such notification to the regional supervisor shall be
made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through
Friday, excluding State Holidays.
3. The spray irrigation facilities shall be effectively maintained and operated at all times so
that there is no discharge to the surface waters, nor any contamination of ground waters
which will render them unsatisfactory for normal use. In the event that the facilities fail
to perform satisfactorily, including the creation of nuisance conditions or failure of the
irrigation area to adequately absorb the wastewater, the Permittee shall take such
immediate corrective action to correct the problem, including actions as may be required
by the Division of Environmental Management.

4. The issuance of *t j� permit shall not relieve the Permittee of the responsibility for
damages to surface or groundwaters resulting from the operation of this facility.
5. The sludge generated from these treatment facilities must be disposed of in accordance
with General Statute 143-215.1 and in a manner approved by the North Carolina
Division of Environmental Management.
6_ Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
7. The following buffers shall be maintained:
a) 400 feet between wetted area and any residence under separate ownership,
b) 150 feet between wetted area and property lines,
c) 100 feet between wetted area and wells,
d) 100 feet between wetted area and drainageways or surface water bodies,
e) 50 feet between wetted area and public right of ways,
f) 100 feet between wastewater treatment units and wells,
g) 50 feet between wastewater treatment units and property lines.
8. A leakage test shall be performed on the septic tanks and dosing tanks (as installed) to
insure that any exfiltration occurs at a rate which does not exceed twenty (20) gallons per
twenty-four (24) hour per 1,000 gallons of tank capacity. The engineer's certification
will serve as proof of compliance with this condition.
11:. OPERATION AND MAINTENANCE_ REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. The Permittee shall employ a certified wastewater treatment plant operator to be in
responsible charge of the wastewater treatment facilities. The operator must hold a
certificate of the grade at least equivalent to the classification assigned to the wastewater
treatment facilities by the Certification Commission. Within thirty days after the
wastewater treatment facilities are 50% complete, the Permittee must submit a letter to
the Certification Commission which designates the operator in responsible charge.
3. A suitable vegetative cover shall be maintained.
4. Irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff.
5. Adequate measures shall be taken to prevent wastewater runoff from the spray field.
6. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
7. The application rate shall not exceed: a) 0.6 inches per acre per week, and b) 0.2 inches
per hour per day on a seven day cycle.
8. No type of wastewater other than that from Gold Hill Airpark Residential Lots shall be
sprayed onto the irrigation area.
9. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
10. Public access to the land application sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each
site.
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III. MQNITORING AND REPORTINQ REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue
analyses) deemed necessary by the Division of Environmental Management to
insure surface and ground water protection will be established and an acceptable
sampling reporting schedule shall be followed.
2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater
disposed. These records shall include, but are not necessarily limited to the following
information:
a) date of irrigation,
b) volume of wastewater irrigated,
c) field irrigated,
d) length of time field is irrigated,
e) continuous weekly, monthly,
for each field,
f) weather conditions, and
g) maintenance of cover crops.
and year-to-date hydraulic (inches/acre) loadings
3. The effluent from the subject facilities shall be monitored by the Permittee at the point
prior to irrigation every March, July, and November for the following parameters:
Parameter
B ODS
TSS
Fecal Coliform
pH
NH3 as N
4. Three copies of all operation and disposal records (as specified in condition 111 2) and
all effluent monitoring data (as specified in condition III 3) and any other data as may be
required shall be submitted on or before the last day of the following month to the
following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 27687
Raleigh, NC 27611-7687
5. Noncompliance Notification:
The Permittee shall report by telephone to the Mooresville Regional Office,
telephone no. [phone], as soon as possible, but in no case more than 24 hours
or on the next working day following the occurrence or first knowledge of the
occurrence of any of the following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such
as the dumping of the contents of a sludge digester; the known passage of a slug of
hazardous substance through the facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate wastewater treatment such as mechanical or electrical failures
of pumps, aerators, compressors, etc.
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c. Any failure of a pumping station, sewer line, or tre**cnt facility resulting in a
by-pass directly to receiving waters without treatment of all or any portion of the
influent to such station or facility.
d . Any time that self -monitoring information indicates that the facility has gone out of
compliance with its pen -nit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 days following first knowledge of the occurrence. This report must
outline the actions taken or proposed to be taken to ensure that the problem does not
recur.
IV. GROUNDWATER REQUIREMENTS
1. Prior to the addition of the tenth (10th) home utilizing the waste treatment and
disposal system, Gold Hill Airpark shall install one (1) upgradient and one (1)
downgradient monitor well to monitor groundwater quality in the area of the lagoon
and holding pond.
2. Prior to the operation of the spray irrigation system one (1) upgradient and one (1)
downgradient monitor well shall be installed to monitor groundwater quality in the
area of the spray irrigation field.
3. All monitor well(s) shall be constructed such that the water level in the well is never
above or below the screened (open) portion of the well at any time during the year.
The monitor wells must be constructed into rock if the water table occurs within the
bedrock. However, the exact location and construction details for these wells shall
be approved by the Mooresville Regional Office, from which a well construction
permit must be obtained.
4. The monitor wells must be sampled initially after construction (and
prior to waste disposal operations) and thereafter every March, July, and November
for the following parameters:
NO3 (10.0) Ammonia Nitrogen
TDS (500.0) TOC
pH ( 6.5-8.5 standard units) Water Level
Chlorides (250.0) Fecal Coliforms (1/100 ml)
Total Suspended Solids
Volatile Organic Compounds - In November only ( by Method 1 or Method
2 below)
Method 1: Method 6230D ( Capillary - Column), "Standard Methods for
the Examination of Water and Wastewater", 17th edition, 1989
Method 2: Method 502.2 " Methods for the Determination of Organic
Compounds in Drinking Water", United States Environmental
Protection Agency - 600/4-88/039
The measurement of water level must be made prior to sampling for the remaining
parameters.
The measuring points (top of well casing) of all monitoring wells shall be
surveyed relative to mean sea level (M.S.L.). The depth of the water in each well
shall be measured from the surveyed point on the top of the casing, The water level
elevations shall then be determined relative to (M.S.L.).
The numbers in parentheses represent the maximum allowable concentrations in
M

.� groundwater for the various analytical parameters, as specified in 15 NCAC 2L
[Groundwater Classifications and Standards]. Unless otherwise noted, the
concentrations are given in parts per mullion.
If TOC concentrations greater than 10 mg/l are detected in any downgradient
monitoring well, additional sampling and analysis must be conducted to identify
the individual constituents comprising this TOC concentration. If the TOC
concentration as measured in the background monitor well exceeds 10 mg/l, this
concentration will be taken to represent the naturally occurring TOC concentration.
Any exceedances of this naturally occurring TOC concentration in the downgradient
wells shall be subject to the additional sampling and analysis as described above.
If any volatile organic compounds are detected by method 6230D, or the equivalent
method 502.2, then EPA methods 604 and 611 must also be run to detect other
organic compounds which may be present. The results of all analysis specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW-59 (Compliance Monitoring Report
Form) every April, August, and December.
5. The Compliance Boundary for the disposal system is specified by regulations in 15
NCAC 2L, Classifications and Water Quality Standards applicable to the
groundwater of North Carolina. An exceedance of Groundwater Quality Standards
beyond the Compliance Boundary is subject to penalty provisions applicable under
General Statute 143-215.6(1)a. The sale of property, by the Permittee, which is
within or contiguous to the disposal system site may alter location of the Compliance
Boundary.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the spray irrigation areas, lagoon, and
holding pond, or 50 feet within the property boundary_
If the title to any property which may affect the location of the Compliance Boundary
is changed, the permittee shall notify the Division Director within 14 days. The
Director shall then establish a modified Compliance Boundary which will be done as
a modification to the Permit.
The REVIEW BOUNDARY for the disposal system is specified by regulations in 15
NCAC 2L, Groundwater Classifications and Standards. A REVIEW
BOUNDARY is established around disposal systems midway between the
Compliance Boundary and the perimeter of the waste disposal area. When the
concentration of any substance equals or exceeds the maximum allowable
concentration of that substance at the REVIEW BOUNDARY, as determined by
monitoring, the perrmittee shall either (i) demonstrate, through predictive calculations
or modeling, that natural site conditions, facility design and operational controls will
prevent a violation of standards at the Compliance Boundary; or, (ii) submit a plan
for the alteration of existing site conditions, facility design or operational controls
that will prevent a violation of standards at the Compliance Boundary, and
implement that plan upon its approval by the Director.
Any additional groundwater quality monitoring, as deemed necessary by the
Division, shall be provided.
7. Gold Hill Airpark shall notify the Mooresville Regional Office, Groundwater
Section, when the 1 Oth and 20th homes are added to the system and when the spray
irrigation system is placed into operation.
V . INSPECTIONS
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Wy
l . Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal
facilities to prevent malfunctions and deterioration, operator errors and discharges
which may cause or lead to the release of wastes to the environment, a threat to
human health, or a nuisance. The Permittee shall keep an inspection log or summary
including at least the date and time of inspection, observations made, and any
maintenance, repairs, or corrective actions taken by the Permittee. This log of
inspections shall be maintained by the Permittee for a period of three years from the
date of the inspection and shall be made available upon request to the Division of
Environmental Management or other permitting authority.
Any duly authorized officer, employee, or representative of the Division of
Environmental Management may, upon presentation of credentials, enter and inspect
any property, premises or place on or related to the disposal site and facility at any
reasonable time for the purpose of determining compliance with this permit; may
inspect or copy any records that must be kept under the terms and conditions of this
permit; or may obtain samples of groundwater, surface water, or leachate.
VI. GENERAL CONDITION
1. This permit shall become voidable unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans, specifications, and other
supporting data.
2. This permit is effective only with respect to the nature and volume of wastes
described in the application and other supporting data.
3. This permit is not transferable. In the event there is a desire for the facilities to
change ownership, or there is a name change of the Permittec, a formal permit
request must be submitted to the Division of Environmental Management
accompanied by an application fee, documentation from the parties involved, and
other supporting materials as may be appropriate. The approval of this request will
be considered on its merits and may or may not be approved.
4. Failure to abide by the conditions and limitations contained in this permit may subject
the Permittee to an enforcement action by the Division of Environmental
Management in accordance with North Carolina General Statute 143-215.6.
The issuance of this permit does not preclude the Permittee from complying with any
and all statutes, rules, regulations, or ordinances which may be imposed by other
government agencies (local, state, and federal) which have jurisdiction.
6. Prior to any transfer of this land, a notice shall be given to the new owner that gives
full details of the materials applied at this site.
7. A set of approved plans and specifications for the subject project must be retained by
the Permittee for the life of the project.
8. The annual administering and compliance fee must be paid by the Permittee within
thirty days after being billed by the Division. Failure to pay the fee accordingly may
cause the Division to initiate action to revoke this permit as specified by 15 NCAC
2H .0205 (c)(4).
9. The Permittee, at least six (6) months prior to the expiration of this permit, shall

request its elkAsion. Upon receipt of the request, the Commission will review the
adequacy of the facilities described therein, and if warranted, will extend the permit
for such period of time and under such conditions and limitations as it may deem
appropriate.
Permit issued this the 18th day of January, 1991
Rri CAROLINA ENVIVONDdENTAL MANAGEMENT COMMISSION
eorge T. Evere , Di ector
Division of Envi mental age cent
Authority of the nme anagement Commission
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Permit No. WQ0003687
January 18, 1991
Engineer's Certification
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
Location
for the -
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
Signature
Date
Registration