WQ0006245_Final Permit_19970305

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
March 5, 1997
Mr. lack King, City Manager
City of Statesville
P.O. Box 1111
Statesville, NC 28687
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Subject: Permit No. WQ0006245
City of Statesville
Distribution of Class A Wastewater Residuals
Iredell County
Dear Mr. King:
In accordance with your application received on December 30, 1996, we are forwarding herewith
Permit No_ WQ0006245, dated March 5, 1997, to the City of Statesville for the continued operation of a
wastewater residuals facility for the distribution of Class A residuals.
As requested in the City of Statesville's letter dated January 23, 1997 the Division has evaluated
the request for reduction of monitoring for the pathogen requirements and the pollutant concentrations.
The data shows that no violations have been found over the last two years and therefore the monitoring
frequency has been reduced to quarterly as requested.
This permit shall be effective from the date of issuance until February 28, 2002, shall void Permit
No. WQ0006245 issued June 6, 1994, 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 future 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 pen -nit shall be final and binding.
If you need additional information concerning this matter, please contact Mr. Randy Kepler,.at
[phone] extension 544.
Sincerely,
ALAO cz,�- /-
A. Preston Howard, Jr., P.E.
cc: Iredell County Health Department
Mooresville Regional Office, Water Quality Section
Mooresville Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Training and Certification Unit, no change in rating
Facilities Assessment 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

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
PERMIT FOR THE DISTRIBUTION OF CLASS A RESIDUALS
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 City of. Statesville
Iredell County
FOR THE
continued operation of a wastewater residuals facility for the distribution of Class A residuals consisting of
dewatered sludge from the Fourth Creek WWTP being transported by a conveyor belt from the Fourth
Creek filter press facilities to a 53 foot long covered, cleated feeder conveyor; two, 25 cubic yard sludge
storage hoppers (for dewatered Third Creek WWTP sludge and the Water Plant alum sludge) with bottom
screw conveyors to convey sludge from hopper to flanged connections above the 53 foot cleated, feeder
conveyor; a 25 foot long, 12 inch diameter twin screw sludge mixer; two, 12 foot diameter by 23 foot
straight wall (60 ton capacity) leg supported silos with variable speed volumetric feeders and a common
transfer screw conveyor to convey lime and/or kiln dust to the sludge mixer; a covered, cleated side wall
conveyor from the end of the sludge mixer to the truck loading station; appropriate nonleaking transport
truck(s) or approved equivalent to convey limekiln dust mixed sludge; protected pulse bins (where truck
loaded sludge will be dumped and allowed to heat for pathogen reduction); a 150 foot by 300 foot curbed
sludge curing asphalt slab for treated sludge mix to be put in windrows, allowed to continue to heat, and
then to dry including periodic turning with stormwater swale and drain system draining back to the
wastewater treatment facilities (walled and roofed pulse bins along the up slope 300 foot side of sludge
curing slab); all necessary measuring devices to ensure that each truck load of mixed sludge reaches a pH
of 12 for 2 hours and the temperature in the heated sludge is maintained at a minimum of 70 degrees C for
a minimum of 30 minutes and/or for measuring to ensure that all of the subject sludges meet the
requirements listed in Condition I.7; and all associated controls, support structures, piping, and
appurtenances for the distribution of approximately 3,900 dry tons per year of residuals from the sources
listed in Condition II 2, to serve the City of Statesville, with no discharge of wastes to the surface waters,
pursuant to the application received on December 30, 1996, 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 February 28, 2002, shall void Permit
No. WQ0006245 issued June 6, 1994, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
1. The distribution of Class A residuals program shall be effectively maintained and operated
as a non -discharge system to prevent the discharge of any wastes resulting from the
operation of this program.

2. This permit shall become voidable in the event of failure of the residuals program to
adequately protect the assigned water quality standards of the surface waters and
groundwaters.
3. 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.
4. In the event that the residuals program is not operated satisfactorily, including the creation
of nuisance conditions, the Permittee shall take any immediate corrective actions as may be
required by the Division.
5. Diversion or bypassing of the untreated residuals or leachate from the residual treatment
facilities is prohibited.
6. All leachate must be reused as a wetting agent for the processing of residuals or routed to
the head of the treatment plant.
7. When wastewater residuals are sold or given away, one of the Class A pathogen
requirements in 40 CFR Part 50332(a) and one of vector attraction reduction requirements
in 40 CFR Part 503.33 must be met. Additionally, an evaluation must be performed which
demonstrates the residuals ability to comply with this requirement. Upon request, a copy
of this evaluation must be submitted to the Assistant Chief, Technical Support Branch,
Division of Water Quality, Post Office Box 29535, Raleigh, NC 27626-0535.
In addition to the above, the Division has approved the following stabilization criteria for
the City of Statesville:
a. Lime/kiln dust mixed sludge reached a pH of 12 for 2 hours and the temperature in
the heated sludge is maintained at a minimum of 70' C for a minimum of 30 minutes.
b. N-Viro Soil Process
Alternative 1 Fine alkaline materials are uniformly mixed by mechanical mixing into
dewatered sludge to raise the pH to greater than 12 for seven days. The
dewatered sludge cake is then air dried (while pH remains above 12 for
at least seven days) through intermittent turning of windrows at least 30
days and until the solids levels reach and maintain a minimum of 65%
solids. A solids concentration of at least 60% is achieved before the pH
drops below 12. Mean temperature of the air surrounding the pile must
be above 511C (4111F) for the first seven days.
Alternative 2 Fine alkaline materials are uniformly mixed by mechanical mixing into
dewatered sludge to raise the pH to greater than 12 for at least 72 hours.
The sludge cake is then heated, while the pH' exceeds 12, using
exothermic reactions or other thermal processes to achieve temperatures
of at least 5211C (126 F) throughout the sludge for at least 12 hours.
The stabilized sludge is then air dried (while the pH remains above 12
for at least three days) to at least 50% solids.
8. No residuals which tests, or is classified, as a hazardous or toxic waste under 40 CFR Part
261 shall be land applied or distributed and marketed.
II. OPERATION AND MAINTENANCE REQUIREMENTS
1. The residuals treatment facilities shall be properly maintained and operated at all times.
P

2. No residuals other than the following are hereby approved for distribution in accordance
with this permit:
Permit Volume
Source
County
Number (Dry Tons/Year)
Fourth Creek WWTP
Iredell
NCO031836
Third Creek WWTP
Iredell
NCO020591 3,900'�
Statesville Water Plant
Iredell
* A maximum of 3,900 dry tons per year of combined wastewater and alum residuals
3. All residuals shall be adequately stored to prevent leachate runoff until treated_ The
finished product may be placed on a concrete pad, placed under shelter or covered until
such time as it is distributed to the buyer. The City of Statesville may also use the defunct
drying beds to store the finished product with all leachate routed to the wastewater -
treatment facility. If an alternate storage site is to be used, approval must be obtained from
the Division of Water Quality.
4. No other residuals other than those specified under Condition 11 2 above may be
distributed. The Permittee shall request and obtain a permit amendment from the Division
of Water Quality for each additional residual source prior to acceptance of that residual.
5. For a Class A residual to be sold or given away in bags or other container for application to
the land, the following must be satisfied:
The Ceiling Concentrations (Dry Weight Basis) and the Pollutant Monthly
Average Concentrations (Dry Weight Basis) must be maintained:
Ceiling Monthly Average
Concentrations Concentrations
Parameters me ft mg,Lg
Arsenic
75
41
Cadmium
85
39
Copper
4,300
1,500
Lead
840
300
Mercury
57
17
Molybdenum
75
----
Nickel
420
420
Selenium
100
100
Zinc
7,500
2,800
6. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified residuals operator to be in responsible charge (ORC) of the residuals
program. The operator must hold a certificate of the type classification assigned to the
residuals program 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.
7. Adequate provisions shall be taken to prevent wind erosion and surface runoff from
conveying pollutants from the residuals treatment area onto the adjacent property or into
any surface waters.
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8. A label shall be affixed to the bag or other container in which residuals that are sold or
given away for application to the land, or an information sheet shall be provided to the
person who receives the residuals sold or given away in an other container for application
to the land. The label or information sheet shall contain the following information:
a. The name and address of the person who prepared the residuals that is sold or given
away in a bag or other container for application to the land.
b. A statement that application of the residuals to the land is prohibited except in
accordance with the instructions on the label or information sheet.
c. Information on all applicable buffers including a 10 foot buffer between application site
and any public or private water supply source (including wells) and any stream, lake,
or river.
d . Residuals shall not be applied to any site that is flooded, frozen or snow-covered.
e Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored residuals into any surface waters.
MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue
analyses) deemed necessary by the Division of Water Quality to insure protection of the
environment will be established and an acceptable sampling and reporting schedule shall be
followed.
2. Proper records shall be maintained by the Permittee tracking all residual activities. These
records shall include, but are not necessarily limited to the following information:
a. source, volume and analysis of each residuals
b . name of residuals' recipient, volume received, and intended use
3. A residual analysis shall be conducted quarterly from the date of permit issuance by the
Permittee. The results of all analysis shall be maintained on file by the Permittee for a
minimum of five years. The residuals analysis shall include the following parameters:
Arsenic Molybdenum
Cadmium Nickel
Copper Selenium
Lead Zinc
Mercury
Aluminum
pH
Ammonia -Nitrogen
Phosphorus
Calcium
Plant Available Nitrogen (by calculation)
Magnesium
Potassium
Nitrate -Nitrite Nitrogen
Sodium
% Total Solids
TKN
After the residuals have been monitored for two years at the above frequency, the Permittee
may submit a request to the Division for a permit modification for the reduction of the
frequency of monitoring for pollutant concentrations and for the pathogen density
requirements, but in no case shall the frequency of monitoring be less than once per year
when residuals are sold or given away.
0

4. 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)
IA-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)
5. All residuals included in this permit must be monitored quarterly, from the date of permit
issuance, for compliance with condition 19 of this permit. Data to verify stabilization of
the residuals must be maintained by the Permittee. The required data is specific to the
stabilization process utilized, but should be sufficient to clearly demonstrate compliance
with the Class A pathogen requirements in 40 CFR Part 503.32(a) and the vector attraction
reduction requirements in 40 CFR Part 503.33. In addition, the EPA certification
statements concerning compliance with pathogen requirements, vector attraction reduction
requirements and management practices must be completed quarterly by the proper
authority or authorities if more than one is involved, either the person who generates the
residuals or the person who prepares the residuals to be sold or given away.
After the residuals have been monitored for two years at the above frequency, the Permittee
may request a permit modification for the reduction of the frequency of monitoring for
pollutant concentrations and for the pathogen density requirements, but in no case shall the
frequency of monitoring be less than once per year when residuals are sold or given away.
6. Three copies of all required monitoring and reporting requirements as specified in
conditions III 1, Ili 2, II1 3, II14, and 1115 shall be submitted annually on or before March
1 of the following year to the following address:
NC Division of Water Quality
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
5

7. Noncompliance Notification:
The Permittee shall report by telephone to the Mooresville Regional Office, telephone
number 704-663-1699, 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 distribution program which results in the land application of
significant amounts of wastes which are abnormal in quantity or characteristic.
b . Any failure of the distribution program resulting in a release of material to receiving
waters.
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 during transportation of
residuals.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within five (5) 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
l . Any groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
V . INSPECTIONS
1. The Permittee or his designee shall inspect the residuals storage, transport, and treatment
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 Water Quality or other permitting authority, upon request.
2. Any duly authorized officer, employee, or representative of the Division of Water Quality
may, upon presentation of credentials, enter and inspect any property, premises or place on
or related to the treatment 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.
0

VI. GENERAL CONDITIONS
1. This permit shall become voidable unless the distribution 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 residuals 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 Water Quality 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 Water Quality in accordance with
North Carolina General Statute 143-215.6(a) to 143-215.6(c).
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).
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.
7. 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.
8. This permit may be modified, or revoked and reissued to incorporate any conditions,
limitations and monitoring requirements the Division of Water Quality deems necessary in
order to adequately protect the environment and public health.
Permit issued this the Fifth day of March, 1997
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�' W-/� am_
Howard, Jr., PA., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0006245
7