WQ0002378_Final Permit_19950324

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
March 24, 1995
Mr. Michael W. Lamberth, Superintendent
Town of Mooresville
Post Office Box 878
Mooresville, North Carolina 28115
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Subject: Permit No. WQ0002378
Town of Mooresville
Surface Disposal of Wastewater Residuals
Iredell County
Dear Mr. Lamberth:
In accordance with your renewal request received on October 24, 1994, we are forwarding
herewith Permit No. WQ0002378, dated March 24, 1995, to the Town of Mooresville for the continued
operation of an active landfill for the purpose of the disposal of wastewater residuals.
Please be advised of Condition No. IV 10 which states one year prior to the expiration of the
subject permit, an alternative to the landfilling of sewage residuals shall be submitted to the Division for
review. Upon review of the permit file and renewal information by the Division, it has been noted the
remaining available land for landfilling will be spent within five years. At such time the permit will be
revoked or allowed to expire if near the end of the permit term.
This permit shall be effective from the date of issuance until December 31, 1999, shall void Permit
No. WQ0002378 issued May 8, 1990, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring and reporting requirements contained in this
permit. Failure to establish an adequate system for collecting and maintaining the required operational
information will result in fixture compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (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. Drawer 27447,
Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
P.O. Box 29535, Raleigh, forth Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

If you need additional information concerning this matter, please contact Mr. Randy Kepler at
[phone].
Sincerely,
CCUa, Cr
A. Prest� Howard, Jr., P.E.
cc: Iredell County Health Department
Mooresville Regional Office, Water Quality Section
Mooresville Regional Office, Groundwater Section
Jack Floyd, Groundwater Section, Central Office
Training and Certification Unit (no revised rating)
Facilities Assessment Unit

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
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 THE
Town of Mooresville
Catawba County
FOR THE
continued operation of a active landfill consisting of approximately 84.0 acres of land for the disposal of
approximately 1,195 dry tons per year of residuals from the Town of Mooresville's Rocky River
wastewater treatment facility with no discharge of wastes to the surface waters, pursuant to the renewal
request received on October 24, 1994, 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, 1999, shall void Permit
No. WQ0002378 issued May 8, 1990, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
The sewage sludge unit shall be effectively maintained and operated as a non -discharge
system to prevent the discharge of any washes resulting from the operation of this program.
2. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this program.
3. In the event that the sewage sludge unit is not operated satisfactorily, including the creation
of nuisance conditions, the Permittee shall cease disposing of the wastewater residuals to
the sewage sludge unit and take any immediate corrective actions as may be required by the
Division,
4. The following buffer zones shall be maintained:
a. 400 feet from any habitable residence,
b . 100 feet between the active sludge landfill unit and any public or private water supply
source, all streams classified as WS or B, waters classified as SA or SB and any Class
I or Class H impounded reservoir used as a source of drinking water,
c. 100 feet between the active sludge landfill unit and any stream, lake, river, or natural
drainage way,
d. 70 feet between the active sludge landfill unit and property lines,

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e. 10 feet between the active sludge landfill unit and any interceptor drains or surface
water diversions (upslope),
f. 25 feet between the active sludge landfill unit and any interceptor drains or surface
water diversions (downslope),
g. 25 feet between the active sludge landfill unit and any groundwater lowering and
surface drainage ditches.
Some of the buffers specified above may not have been included in previous permits for
this residual landfill unit. These buffers are not intended to prohibit or prevent
modifications, which are required by the Division, to improve performance of the existing
treatment facility. These buffers do, however, apply to modifications of the surface
disposal site. These buffers do apply to any expansion or modification of the spray
irrigation areas and apply in instances in which the sale of property would cause any of the
buffers now complied with, for the treatment and disposal facilities, to be violated. The
applicant is advised that any modifications to the existing facilities will require a permit
modification.
5. A copy of this permit shall be maintained at the landfill site when residuals are being
disposed during the life of this permit. A spill prevention and control plan shall be
maintained in all residuals transport and application vehicles.
5. Sewage residuals placed in the subject landfill shall be covered with soil or other material at
the end of each operating day. A minimum of two (2) feet of soil shall be placed over the
sewage residuals which has been placed in the trenches. Trenches shall not exceed ten feet
in width at the bottom or eight feet in depth. Trenches shall have 1:4 side slopes and shall
follow the contour of the land. Trenches shall have two feet of cover over the residuals to
bring them up to existing grade.
OPERATION AND MAINTENANCE ,REQUIREMENTS
The permit shall become voidable unless the landfill is maintained and operated in a manner
which will protect the assigned water quality standards of the surface waters and
groundwaters.
2. No residuals other than the following are hereby approved for disposal in the sewage
sludge units in accordance with this permit:
Permit Estimated
Source County Numbgr Volume (dQ tan year)
Mooresville's Rocky River WWTP Iredell NCO046728 1,195
3. The pollutant concentrations in the residuals which will be disposed in the sewage sludge
unit shall not exceed the following Ceiling Concentrations (Dry Weight Basis):
Parameters _ ,Mglkg
Arsenic 30
Chromium 200
Nickel 210
4. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified operator to be in responsible charge (ORC) of the active sewage sludge
unit. The operator must hold a certificate of the type classification assigned to the sewage
sludge unit by the Certification Commission. The Permittee must also employ a certified
back-up operator of the appropriate type to comply with the conditions of Title 15A NCAC
8A, .0202.
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5. Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored residuals into any surface waters.
6. Diversion or bypassing of the leachate from the disposal facility is prohibited.
7. An adequate soil cover shall be placed daily over the top of the disposed residuals.
Appropriate measures must be taken to control public access to the surface disposal site
during active site use and for the 36-months following closure of the landfill. Such controls
may include the posting of signs indicating the activities being conducted at each site.
9. Adequate provisions shall be taken to prevent wind erosion and surface runoff from
conveying pollutants from the surface disposal site onto the adjacent property or into any
surface waters. This includes but is not limited to an adequate daily soil cover.
10. Residuals shall not be applied to any surface disposal site that is flooded, frozen or snow-
covered.
11. Food crops, feed crops and fiber crops shall not be grown nor animals grazed on the
landfill.
13. Fescue and grasses shall be maintained as the cover crop over the trenches. The disposal
site shall be seeded immediately after a trench is filled to protect from the erosion of the
cover material.
14. The disposal rate for this site should not exceed an average of 29 cubic yards of residuals
per day.
15. The residuals disposed of shall be of a consistency that can be confined, compacted, and
covered daily. The residuals shall have a solids content of approximately 30% prior to
burial.
16. An active sewage sludge unit shall not restrict the flow of a base flood.
17. As required by 40 CFR 503 Subpart C, when a cover is placed on an active sewage sludge
unit, the concentration of methane gas in air in a structure within the surface disposal site
shall not exceed 25 percent of the lower explosive limit for methane gas during the period
that the sewage sludge unit is active and the concentration of methane gas in air at the
property line of the surface disposal site shall not exceed the lower explosive limit for
methane gas during the period that the sewage sludge unit is active.
III. MONITORING AND REPORTING_ REQUIREMENTS
1. At least one year prior to expiration, provide a narrative detailing an alternative means of
residuals disposal for the Rocky River Wastewater Treatment Plant.
2, Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue
analyses) deemed necessary by the Division of Environmental Management to insure
protection of the environment will be established and an acceptable sampling and reporting
schedule shall be followed.
3. Proper records shall be maintained by the Permittee tracking all application activities.
These records shall include, but are not necessarily limited to the following information:
a) source of residuals
b) date disposed
c) volume of residuals disposed in gallons/year, dry tons/year, or kilograms/year
d) location of landfilling
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4. A residuals analysis will be conducted quarterly from the date of permit issuance by the
Permittee and the results maintained on file by the Permittee for a minimum of five years.
If land application occurs at a frequency less than quarterly, a residuals analysis will be
required for each instance of land application. The residuals analysis shall include but is
not necessarily limited to the following parameters:
Arsenic % Total Solids
Chromium pH
Nickel
5. A Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted by the
Permittee annually. The TCLP analysis shall include the following parameters (please note
the regulatory level in mg/L in parentheses):
Arsenic (5.0)
Benzene (0.5)
Carbon tetrachloride (0.5)
Chlorobenzene (100,0)
Chromium (5.0)
m-Cresol (200.0)
Cresol (200.0)
1,4-Dichlorobenzene (7.5)
1,1-Dichloroethylene (0.7)
Endrin (0.02)
Hexachlorobenzene (0.13)
Hexachloroethane (3.0)
Lindane (0.4)
Methoxychlor (10.0)
Nitrobenzene (2.0)
Pyridine (5.0)
Silver (5.0)
Toxaphene (0.5)
2,4,5-Trichlorophenol (400.0)
2,4,5-TP (Silvex) (1.0)
Barium (100.0)
Cadmium (1.0)
Chlordane (0.03)
Chloroform (6.0)
o-Cresol (200.0)
p-Cresol (200.0)
2,4-D (10.0)
1,2-Dichloroethane (0.5)
2,4-Dinitrotoluene (0.13)
Heptachlor (and its hydroxide) (0.008)
Hexachloro-1,3-butadiene (0.5)
Lead (5.0)
Mercury (0.2)
Methyl ethyl ketone (200.0)
Pentachlorophenol (100.0)
Selenium (1.0)
Tetrachloroethylene (0.7)
Trichloroethylene (0.5)
2,4,6-Trichlorophenol (2.0)
Vinyl chloride (0.2)
6. Three copies of all required monitoring and reporting requirements as specified in
conditions III 2, III 3, 1114, and III 5 shall be submitted annually on or before March 1 of
the following year to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
7. Noncompliance Notification:
The Permittee shall report by telephone to the Mooresville Regional Office, telephone
number [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 with the surface disposal program which results in the disposal of
significant amounts of wastes which are abnormal in quantity or characteristic.
b. Any failure of the surface disposal program resulting in a release of material to
receiving waters.
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c. Any time that self -monitoring information indicates that the facility has gone out of
compliance with the conditions and limitations of this permit or the parameters on
which the system was designed.
d. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate residual treatment.
e. Any spillage or discharge from a vehicle or piping system transporting residuals to the
disposal site.
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 REQ JU REMENTS
l . The six existing monitoring wells designated as MW-1, MW-2, MW-3, MW-4, MW-5 and
MW-6 shall be sampled every March, June, September and December for the following
parameters:
Total Coliforms
Ammonia Nitrogen
NO3
Chloride
TDS
Cadmium
TOC
Water Level
pH
Zinc
Copper
Volatile Organic Compounds - In December only (by Method 1 or 2 below)
Method 1: Method 6230D (Capillary - Column), "Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989
Method 2: Method 502.2 "Methods For The Determination Of Organic Compounds
In Drinking Water", U.S. EPA-600/4-88/039
2. The measurement of water levels must be made prior to sampling for the remaining
parameters. The depth to water in each well shall be measured from the surveyed point on
the top of the casing.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to
provide the relative elevation of the measuring point for each monitoring well.
3. If TOC concentrations greater than 10 mg/l are detected in any down:gradient 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.
4. The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29535 Raleigh, N.C. 27626-0535 on Form GW-59
[Compliance Monitoring Report Form] every April, July, October and January.
5. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than 1":100`) signed and
sealed by a professional engineer or a state licensed land surveyor that indicates all of the
following information:

a. the location and identity of each monitoring well,
b . the location of the waste disposal system,
c. the location of all property boundaries,
d . the latitude and longitude of the established horizontal control monument,
e. the relative elevation of the top of the well casing (which shall be known as the
"measuring point"), and
f. the depth of water below the measuring point at the time the measuring point is
established.
The survey shall be conducted using approved practices outlined in North Carolina General
Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56.
The surveyor shall establish a horizontal control monument on the property of the waste
disposal system and determine the latitude and longitude of this horizontal control
monument to a horizontal position accuracy of +/- 10 feet. All other features listed in a.
through e. above shall be surveyed relative to this horizontal control monument. The
position accuracy of features listed in a. through e. above shall have a ratio of precision not
to exceed an error of closure of 1 foot per 10,000 feet of perimeter of the survey. Any
features located by the radial method will be located from a minimum of two points.
Horizontal control monument shall be installed in such a manner and made of such
materials that the monument will not be destroyed due to activities that may take place on
the property. The map shall also be surveyed using the North American Datum of 1983
coordinate system and shall indicate the datum on the map. All bearings or azimuths shall
be based on either the true or NAD 83 grid meridian. If a Global Positioning System
(GPS) is used to determine the latitude and longitude of the horizontal control monument, a
GPS receiver that has the capability to perform differential GPS shall be used and all data
collected by the GPS receiver will be differentially corrected.
The maps and any supporting documentation shall be sent to the Groundwater Section,
N.C. Division of Environmental Management P.O. Box 29535 Raleigh, N.C. 27626-
0535.
6. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary
for the disposal system constructed prior to December 31, 1983 is established at either (1)
500 feet from the waste disposal area, or (2) at the property boundary, whichever is closest
to the waste disposal area. An exceedance of Groundwater Quality Standards at or beyond
the Compliance Boundary is subject to immediate remediation action in addition to the
penalty provisions applicable under General Statute 143-215.6A(a)(1).
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the
disposal systems midway between the Compliance Boundary and the perimeter of the
waste disposal area. Any exceedance of standards at the Review Boundary shall require
remediation action on the part of the permittee_
7 . Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided_
8. No land application of waste activities shall be undertaken when the seasonal high water
table is less than three feet below land surface.
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V . INSPE TI NS
The Permittee or his designee shall inspect the residuals storage, transport, 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 maintain 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 five years from the date of the inspection and shall be made available to the
Division of Environmental Management or other permitting authority, upon request.
2. 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 surface disposal site or 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; and may obtain
samples of groundwater, surface water, or leachate.
VI. GENERAL CONDITIONS
This permit shall become voidable unless the surface disposal activities are carried out in
accordance with the conditions of this permit, the supporting materials, and in the manner
approved by this Division.
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 automatically transferable. In the event that there is a desire for the
facilities to change ownership or a name change of the Permittee, 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. The following are approved sites for sludge landfilling (see attached map):
Site Owner _ __ -Application Area lexcluding buffers)
Wastewater Treatment Plant Town of Mooresville 84.0 acres
5. 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(a) to 143-215.6(c).
6. The annual administering and compliance fee must be paid by the Permittee within thirty (30)
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).
7. 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.
8. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. 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. This facility's life
expectancy is only for another five years. If this site is out of capacity for the acceptance of
sludge by the renewal date, an extension of the permit will not be granted.
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9. This permit may be modified, or revoked and reissued to incorporate any conditions,
limitations and monitoring requirements the Division of Environmental Management deems
necessary in order to adequately protect the environment and public health.
10. One year prior to the expiration of the subject permit, an alternative to the landfilling of
sludge shall be submitted to the Division for review. At least one year prior to expiration,
provide a narrative detailing an alternative means of residuals disposal for the Rocky River
Wastewater Treatment Plant.
11. Prior to any transfer of this land, a notice shall be given to the new owner that gives full
details of the materials incorporated and the previous operations at this site.
Permit issued this the Twenty Fourth day of March, 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
6 0 & - -M CL �� (L - "110
A. Preston, oward, Jr., P.E , Director
Division of nvironmental Management
By Authority of the Environmental Management Commission
Permit No. WQ0002378
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