WQ0001759_Final Permit_19940804

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
Mr. Jack King, City Manager
City of Statesville
Post Office Box 1111
Statesville, North Carolina 28677
Dear Mr. King:
&LT.W*VA
74
E:>EHNR
August 4, 1994
Subject: Permit No. WQ0001759
City of Statesville
Fourth Creek Sludge Landfill
Iredell County
In accordance with your application received on May 24, 1994, we are forwarding herewith Permit
No. WQ0001759 dated August 4, 1994, to the City of Statesville for the continued operation of an active
sewage sludge unit for the purpose of the disposal of wastewater residuals. This permit is to authorize the
disposal of the City of Statesville's Third Creek Wastewater Treatment Plant non -hazardous residuals at
the City's Fourth Creek Wastewater Treatment Plant active sewage sludge unit (sludge monofill landfill).
It is understood the subject residuals of this permit will meet stabilization requirements using methods
found in 40 CFR Part 503, and it is noted that subject residual burial can meet vector attraction reduction
requirements in 40 CFR Part 503.33. No residuals which tests or is classified as a hazardous or toxic
waste under 40 CFR Part 261 shall be land applied or landfilled.
This permit shall be effective from the date of issuance until February 29, 1996, 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.
Issuance of this permit hereby voids Permit WQ0001759 issued March 5, 1993.
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.
If you need additional information concerning this matter, please contact Mr. John Seymour at
[phone].
Sincerely,
A. Presto 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
Facilities Assessment Unit
P.D. 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
SURFACE DISPOSAL 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
City of Statesville
Iredell County
FOR THE
continued operation of a active sewage sludge unit at the Fourth Creek Wastewater Treatment Facility
(residual monofill landfill) consisting of approximately 9.4 acres with disposal trenches 80 - 100 feet in
length, 10 feet in depth, with complete burial of the subject residuals for the disposal of approximately
1,200 dry tons per year of residuals from the Fourth Creek wastewater treatment facility, approximately
160 dry tons per year of residuals from the Statesville water treatment facility, and approximately 930 dry
tons per year of residuals from the Third Creek wastewater treatment facility with no discharge of wastes
to the surface waters, pursuant to the application received on May 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 February 29, 1996, 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 wastes 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 sewage sludge 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 II impounded reservoir used as a source of drinking water,
c. 100 feet between the active sewage sludge unit and any stream, lake, river, or natural
drainage way,
d. 100 feet between the active sewage sludge unit and property lines (if the original permit
was issued with the buffer distance to property line as 100 feet, updated maps must be
submitted and new acreage delineated for the buffer to be reduced),
e. 10 feet between the active sewage sludge unit and any interceptor drains or surface
water diversions (upslope),
f. 25 feet between the active sewage sludge unit and any interceptor drains or surface
water diversions (downslope),
g. 25 feet between the active sewage sludge 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 sewage sludge 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 sewage sludge 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.
6. When wastewater residuals are disposed in a sewage sludge unit, the Class A pathogen
requirements in 40 CFR Part 503.32(a) or the Class B pathogen requirements in 40 CFR
Part 503.32(b) 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 including all test results and calculations.
7. Sewage sludge placed in the subject sewage sludge unit shall be covered with soil or other
material at the end of each operating day.
8. If the title to any part of the sludge landfill property or use of said property is changed, the
permittee shall notify the new title holder or new property user that the property was
previously used as a sludge landfill site.
9. No residuals which tests, or is classified, as a hazardous or toxic waste under 40 CFR Part
261 shall be land applied or landfilled.
II. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities and application sites shall be properly maintained and operated at all times.
2. This 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
ground waters.
2

3. 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 Number Volume (d . ton yam)
Fourth Creek WWTP Iredell NC0031836 1,200
Statesville WTP Iredell 160
Third Creek WWTP Iredell NC0020591 930
4. The pollutant concentrations in the residuals which will be disposed in sewage sludge unit
shall not exceed the following Ceiling Concentrations (Dry Weight Basis):
PammQters mg&g
Arsenic 73
Chromiun 600
Nickel 420
5. 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
8 A, .0202.
6. Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored residuals into any surface waters.
7. An active sewage sludge unit shall not restrict the flow of a base flood.
8. An active sewage sludge unit shall not be located in an unstable area.
9. 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 sewage sludge unit.
Such controls may include the posting of signs indicating the activities being conducted at
each site.
10. 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.
11. Residuals shall not be applied to any land application site that is flooded, frozen or snow-
covered.
12. Application rates to the landfill shall not exceed 91,000 cubic feet per year.
13. Food crops, feed crops and fiber crops shall not be grown on an active sewage sludge unit,
unless approval has been requested and received from the Division of Environmental
Management.
14. Animals shall not be grazed on an active sewage sludge unit unless approval has been
requested and received from the Division of Environmental Management.
3

III. MONIJORING AND REPORTING REQUIREMENTS
1. 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.
2. 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) volume of residuals applied in gallons(acre, dry tons/acre or kilograms/hectare
C, i) annual and cumulative totals of dry tons/acre of residuals, annual and cumulative
pounds/acre of each heavy metal (which shall include, but not be limited to arsenic,
tl o fl S cadmium, chromium, copper, lead, mercury, molybdenum, nickel, selenium and zinc),
annual pounds/acre of plant available nitrogen (PAN), and annual pounds/acre of
S�yj Cq__is phosphorus applied to each field.
residuals analysis for each residual source will be conducted quarterly from the date of
10 V d4�; [ i I permit issuance by the Permittee and the results maintained on file by the Permittee for a
in 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
Chromiun pH
Nickel
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 applied to the land.
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)
Barium (100.0)
Benzene (0.5)
Cadmium (1.0)
Carbon tetrachloride (0.5)
Chlordane (0.03)
Chlorobenzene (100.0)
Chloroform (6.0)
Chromium (5.0)
o-Cresol (200.0)
m-Cresol (200.0)
p-Cresol (200.0)
Cresol (200.0)
2,4-D (10.0)
IA-Dichlorobenzene (7.5)
1,2-Dichloroethane (0.5)
1, 1 -Dichloroethylene (0.7)
2,4-Dinitrotoluene (0.13)
Endrin (0.02)
Heptachlor (and its hydroxide) (0.008)
Hexachlorobenzene (0.13)
Hexachloro-1,3-butadiene (0.5)
Hexachloroethane (3.0)
Lead (5.0)
Lindane (0.4)
Mercury (0.2)
Methoxychlor (10.0)
Methyl ethyl ketone (200.0)
Nitrobenzene (2.0)
Pentachlorophenol (100.0)
Pyridine (5.0)
Selenium (1.0)
Silver (5.0)
Tetrachloroethylene (0.7)
Toxaphene (0.5)
Trichloroethylene (0.5)
2,4,5-Trichlorophenol (400.0)
2,4,6-Trichlorophenol (2.0)
2,4,5-TP (Silvex) (1.0)
Vinyl chloride (0.2)
4

6. All residuals included in this permit must be monitored quarterly from the date of permit
issuance, for compliance with condition 1.6 of this permit. Data to verify stabilization and
vector attraction reduction 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 the Class A pathogen requirements in 40 CFR Part
503.32(a) or with the Class B pathogen requirements and site restrictions in 40 CFR Part
503.32(b). 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 prepares the residuals, the person who derives the
material, or the person who applies the residuals.
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 applied to the land.
7. Three copies of all required monitoring and reporting requirements as specified in
conditions Ell 1, I1I 2, 1113, 1114, 1115 and III 6 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
8. 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 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.
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.
5

IV. GROUNDWATER REQUIREMENTS
The three (3) existing monitor wells (numbers 1 - 3) shown on the attached site map, must
be sampled every March, July, and November for the following parameters:
NO3
TOC
Ammonia Nitrogen
Water Level
Cadmium
Copper
Volatile Organic Compounds -
TDS
pH
Chloride
Fecal Coliforms
Zinc
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 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.
If TOC concentrations greater than 10 mg/i 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 back round 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, 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, August, and December.
2. The COMPLIANC-E BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is
for the disposal system constructed after December 31, 1983 is established at either (1) 250
feet from the waste disposal area, or (2) 50 feet within 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.
3. Any additional 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 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.
V I. GENERAL CONDITIONS
1. 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. 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).
5. 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

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 Pen- ittee, 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.
S. 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.
9. When the City of Statesville's N-Viro Composting facility is operational and this sludge
landfill operation is no longer required, the City of Statesville should notify the Division in
writing and request that this landfill permit be voided.
10. Issuance of this permit hereby voids Permit No. WQ0001759 issued March 5, 1993.
Pprrnit issued this the 4th day of August, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston Frpward, Jr., P.EJ, Director
Division of vironmental Management
By Authority of the Environmental Management Commission
Permit No. W Q0001759
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3000 4000 5= ww 7000 FEET
0 l KILOMETEit
NTERVAL 10 FEET
MEAN SEA LEVEL
l.b. Site Location Map
Page 6C
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Flood boundar
Regional a

- I . Detailed Site Location Map
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yRA-TiNG SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: CrzK. 5�;,�t,; 1.�,an�,� % C•r, 5- �;rr� =
Owner or Contact Person: �.
ailing Address: �r .Z �L lll�� Sri , L -�-
,ounty: _�� -._.,_—Telephone:��
Present Classification: New Facility Existing Facility
NPDES Per. No. NC00 , Nondisc. Per. No.W4�--"tomi-4S5 Health Dept.Per No.
Rated by: Telephone: -4,>4 Date: 4&ZtLa
Reviewed by: Health Dept. Telephone:
Regional Office
Telephone:
Telephone:
ORC: Grade: Telephone: --
Check Classification(s): Subsurface Spray irrigation ,�fLand Application
Wastewater Classification: (Circle One) 1 II III IV Total Points:
^'_ r Dr,%CE CLASSIMATM
(check all units that apply)
1 _septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. -- sand filters
3. grease trap/interceptor
ail/water separators
gravity subsurface treatment and disposal:
c. pressure subsurface Ireatment and disposal
Central Office
SPPAY IRR GAT70N CtASSIFICATICN
(check all units that apply)
1.
preliminary treatment (definition no. 32 )
2.
lagoons
3.
septic tanks
4.
pump tanks
5.
pumps
fi-
sand filter:
7-
grease trap/interceptor
8.
oil/water separators
0
disinfection
10.
chemicaf addrtlon for nutrient/algae control
11.
spray Irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater In excess of these components shall
be rated using the point rating !system and will require an operator with an appropriate dual certification.
LAND APPLICATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY G.ASSIFICATtON
The following systems shall be assigned a Class I cLassification, unless the flow is of a significant quantify or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check N Appropriate)
1. OiVwater Separator Systems consisting only of physical separation, pumps and disposal;
2� -Septic TanklSand Fitter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge:
3._Lagoon Systems consisting only of preTiminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -bop Recycle Systems;
5. Groundwater Remediation Systems consisting only of ofVwaler separators, pumps, air -stripping, carbon adsorption, disinfection
and disposcl;
6. Aquacufture operations with discharge to surface waters;
7. __Waver Plant sludge handling and back -wash water treatment;
A Seafood processing consisting of screening and disposal.
Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified If permitted after July 1,
1993 or I upon Inspection by the Division, it is found that the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, In writing.

The following scale is Used for rating wastewater treatment facilities: (circle appropriate points)
4—_--
ITEM POINTS
(1) Industrial Pretreatment Units W Industrial Pretreatment Program (see definition No. 33)...................................................4
(2) DESIGN
FLOW OF PLANT IN gpd [rot applkabis to non -contaminated 000ling waters, sludge handling facilities for
water purification plants, totally dosed cycle systsms(see definition No. I I and facilities core €sting only of Mem
(4)(d) or Items (4)(d) and (11)(d))
0 - 20.D00................................................................................................................................................1
20,001 - 50.0D0.................................................................................................................I.....................2
50,001 - 100.000..................................................................................................................I.................3
100.001 - 250,D00............................................................... ................................................................... A
250,001 - 500,000.........................................................................................................................1.........5
500,001 - 1,000,D00..........................................................................................I........._.................... .8
1.000,D01 - 2.000,000...........................................................................................................................10
2.000.001 (and up) rate 1 point additional for each 200,D00 gpd capacity up to a maximum of .._._...�.....3Q
Design Flow (gpd)
(3) PRELIMINARY UNITSlPROCESSES (see definition No.32)
(a)
SwScreens...............................................................................................................................................I
or
(b)
Mechanical Screens. Static Screens or Comminuting Devices .......... ........................ ._..... ........... ._.............. 2
(c)
Grii Removal..............................................................................................................................................1
or
(d)
Mechanical or Aerated Grt Removal.............................................................................................................2
(a)
Flow Measuring Device .............................. .......................................................................................... ........ I
or
(1)
instrumented Flow Measurement ................. ........................................................................ I ...................... 2
(g)
Preaeral€on...............................................................................................................................................2
(h)
krlluert Flow Equalization..........................................................................................................................2
(1)
Grease or Oil Separators - Gravity.................................................................................................................2
Mechanical................................................................................................................................................3
D1ssved Air Flotadon............................................. ........ .......................................................................... A
()1
Prechlorinatlon.........................................................................................................................................5
(4) PRIMARY TREATMENT UNITS/PROCESSFS
(a)
Septic Tank (ace definition No. 43).... „......................................................................................................2
(b)
Imhoff Tank.............................................................................................................................................5
(c)
Primary Clarifiers.........................................................................................................................................5
(d)
Settling Ponds or Settling Tanks for kxwg"c Nontoxic Materials (sludge handling facilities for water
purf !cation plants, sand, gravel, stone, and other mining operations except racreatwnal activities each as gem
orgold mining)........................................................................................................................................2
(5) SECONDARY
TREATMENT UNITS/PROCESSES
(a)
Carbonaceous Stage
(1) Aeration -High Purity Oxygen System..............................................................................20
DiffusedAir Systam.......................................................................................................10
Mechanical Air System (fixed, floating or rotor)..................................................................8
SeparateSkrdge Reaeraibn............................................................................................3
(11) Trk*Jing Filter
HighRate....................................................................................................................7
StandardRate...............................................................................................................5
PackedTower................................................................................................................5
(lif) Biological Aerated Filter or Aerated Biological Filter 0
(Iv) Aerated Lagoons. .............................................................. .......................................... 10
(v) Rotating Biological Contactors .............................................................._.......................10
(vi) Sand Fillers -Intermittent biological..................................................................................2
Recirculatingbiological.....................................................................................................3
(vlt) Stabilization Lagoons ........... .............................................. ..».»................._................5
(vlli) Cierttier....... I ... I .............. ..................... ..................I.. .5
(ix) Single stage system for combirad carbonaceous removal of BOD and nitrogenous removal by
nitrification (see definition No. 12)(Points for this item have to be In addition to Items
(5)(a)(1) through (5)(a)(vlil),
"Itzing the extended aeration process (see definition No.3a)..........................................2
u1111zing other than the extended aeration process. .................................. ».................a
{x) Nutrient additions to enhance BOD removal.....................................................................5
(xl} Blofoglcal Culture ('Super Bugs")addnion........................................................................5
(b)
Nitrogenous Stage
(I) Aeration - High Purity Oxygen System..._.._........_...._...._...._...._...._...._......20
DitfusedAir System.......................................................................................................10
Mechanical Air System (fixed, floating or rotor) ................_...-__. ........._-.._......8
SeparateSludge Rea"Ion............................................................................................3
(11) Trickling Ether -High Rate ............................. ............... ..................... ......................... ....... 7
Standard Rate...............................................................................................................5
PackedTower................................................................................................................5
(Ili) Biological Aerated Filter or Aerated Biological Fitter.... ......__. _._._. .__. ..._..10
(Iv) Rotating Biological Conlactors......................................................................................10
(v} Sand Filter - intermlttentt biological ............................. ..................... ....... ........................ 2
Recirculating biological ........................................... .............. ».........................................
(vl) Ctadfrer............................... ............................................................. ...................I..........5
(6) TERTWWORADNANCEDTREAIWENTUfffSPFK)CESSES
(a)
AcWated Carbon Beds -
withoutcarbon regenerdiom...... ........................... ....................... ............. .......................
withcarbon regeneration.. ................................ ............ »....»......»„.. t 5
(b)
Powdered or Granular AcWated Carbon Food -
withoutcarbon regeneration .............. »».».............».........»...... ..............................
with carbon regeneration ..................... ... .......... ................ ....... ..... ... ................... .......... 15
(c)
Ale stripping . ..................................................................«...............»............................................6
(d)
DenitrifIcatonProce.............................. .»... ............................ ....................... »»................................ ..10
(a)
Electrodiafysts.....................................................................»................................................................5
(1)
Foam Separation, ............. . ........................ . . .................... ............... ................ .................................. b
(9)
Ion Exchange... ... .. .. ...... ...... ................... A
(h)
Luc Application of Treated Effluent (see de(k>ltfon No. 22b) (not applicable for sand, gravel. alone
and other similar mining operations) by high rats trill[cotton......._.._._......... ...»....» ......._..._......4
{i)
M€croscroons.............................................................................................................................................5
(�)
Phosphorous Removal by Biotogk-al Processes (See deflnitbn No. 25)....... ..«................................. ...........20
(k)
Polishing Ponds - without aeration ............... _...................................... ................................................. »... 2
whhaeration .... »........ .... .......... ... .................................................... ........................ 5

r
.... .......,.., - �a.........................................................»....................................................0
diffused or mechanlcal................ ..... ..---...................... ...................... ....................... 2
(m)
Reverse Osmosis....................................................... .............................. ----........................................... 5
(n)
Sand or Mixed -Media Filters - low rat* ........... ..................... ........._...„....„.........»........„............__....._....2
highrat# ............ ..................................................... ..5
" (o)
Treatmert processes for removal of metal or cyanide...................................................................................16
( p )
treatment processes for removal of toxic materials other than metal or ryanids...„ .... .„„.„..—_.„„. .__7 5
(7) SLLAGE TREATMENT
(a)
Sludge Digestion Tank . Heated (armasrobkj. .„.... ... ...._._.....».»....—........—.......—....... ...10
Aerobic.....»-.........„.... ... ..... ........... ... .._.«..„.........................„.........................................5
Unheated(anaerobic)........................................ »..........».........................................................................3
(b)
Sludge Stabilization (chemical or thermal)..................................................................................................5
(c)
Sludge Drying Beds - Gravity .............. ....... ... .... ......».........-._.............. .................................... 2
Vacuum Assisted....„..» .... .......................... »...........„....»...„»..»..._........_....«..........................»..„......5
(d)
Sludge Efutrlatbn.» „...».»...».».».„....„„....«„.............„.......„..........».„.„.„......»... -,...5
(e)
Sludge Conditioner»(chemical or thermal) ......... .................. „._................»„.......„...»................................5
(f)
Sludge Thickener (gravity)................... ....... . ................................. ......................................................„....5
(g)
Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(1)].............................................................a
(h)
Sludge Gas Utilization (including gas storage) .......... ................................ .............„..............................2
(t)
Sludge Holding Tank Aerated.... ................„» » ««« .«.«.—.„.... »..»......„..„.. »..„ . „.....» .»..„......5
Nonasrat ad ......................... _.-..— ..................................... . .................................. .. .».»..._.............2
(1)
Sludge lrxinerator (nol Including activated carbon regeneration) ................................................................10
(k)
Vacuum Ffter, Centrifuge, or Fllter Press or other similar dewalering devices ......„«„......................................10
(a) RESIDUALS UTILIZATION/DISPOSAL (including incinerated ash)
(a)
Lagoons... ....... ....... ... ......».................. .......................................... ...2
(b)
Lard Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land application permit
or lardfil permit. ....... ». ................... ................._........._........_............._.2
(c)
Dedicated Landfill(burial) by the parmlties of the wastewater treatment facility.....................„...............„.....3
(0) DISI1FECTCN
(a)
Chlorination .............. ................„..»...........................»............................... »... .5
(b)
Dechlor3nation.... ..................... „.«_«.....__»...�. .......»»....e.».».„„.....»..........._.........._.» ....» »..»!i
(c)
Ozone.....................»..........„...............„....»„....................»...»...„.»...„.....„_..»...............»»..................5
(d)
Radiation. .... ...... ... ........ .. ............5 ...................... ............................ ............ ........................ .......... ...........
(10) CHEMICAL ADDITION SYSTEM(S) ( see definition No. 9) (not applicable to chemical addhlors: rated as Item (3)Q).
(5)(a)(xl). (6)(a), (6)(b). (7)(b). (7)(e), (9a), (9)(b) or (9)(c) 5 points each:
List..................
........ ......................................... ........... ........ ».... ................. ... .............
...........................................................................„........»_...»....„..„.»...»«»»...........5
........................„........„...................».........»....„........._..........»................................. 5
.............................„.......................................................................................................5
(11) MiSCIRIANEt:Ir. S LUTSrPRDCESSES
(a)
Bolding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials Including wastes from mining
operations containing nitrogen or phosphorus compowss In amounts significantly greater than Is Common
for domestic wastewater............................................................ .............................................................. A
(b)
Effluent Flow Equalization (not applicable to worage basins which are inherent In land application systems)-2
(c)
Stage Discharge (not applicable to storage basins Inherent In Land application
(d)
Pumps...........................................................».................................................................3
(a)
Stand -By Power Supply. „. ............... ................................. „.......... ».................... ... »......... -»..3
-»
(1)
Thermal Pollution Control Devvice........ ..................... »»................. ......... .».................... ............. „—...3
TWALPOINTS....... »....»...»„. ... »„ ....»......»........»..„».» .�—
CIASSFICATM
CtraeI ...... ............... .......................................... .........»....................... .5-25 Points
ClassII ........ „....»..»..„............... »... ....... ........ ...»..... ..... ...«„ .»«..............26.5t) Points
CIEW11......»........«.......................... .».» ..»..».„........._._. ................51-65 Points
CL>sN.........»...... ................... .«... ....... .......................»....-....................ti6 Up Points
-------------------------------------------------------------
Facilities having a rating of one through four points, Incivsfve, do not require a certified operator.
Faculties having an activaled "go process wll be assiq w a minimum cuss icatlon of Class 11.
Facilities having treatment processes for the removal of metaf or cyanide will be assigned a minimum classltication of Class It.
Facilities having treatment processes for the biological removal d phosphorus wig be assigned a ntinirmm classdication of Class III.
---------------------------------------------------^-----------
J0LmJ4 DEnNn KM
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A phryslcallchemical method for reducing soluble organic material from wastewater effluent; The column -type beds used In this
method will have a flow rate varying from two to elgM gallons per mints per square foot and may be ehhw upfbw or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant she;
(2) Aerated Lagoons. A basin In which all solids are rnalntained In suspension and by which biological oxidation or organic matter is reduced through artificially
accelerated transfer of oxygen on a tlow-through basis;
(3) Aeration. A process of bringing about Intlmate contact between air or Ngh purhy oxygen In a liquid by spraying, agitation or dffusbn;(3a) Extended
Aeration. An activated sludge process utlllzing a minimum hydraulic detention time of 18 hours.
(4) Agriarlturally managed she. Any site on which a crop is produced. managed, and harvested (Crop Includes gr-aS s, grains, trees, etc.);
(5) Air Stripping. A process by which the ammonium ion Is first convened to dissolved ammonia (pH adjustment) with the ammonla then released to the
atmosphere by physical means; or other simllar processes which remove petroleum products such as benzene, toluene, and xylene;
(6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidfze the
Absorbed impurities;
(7) Carbonaaous Stage. A stage of wastewater treatment designed to achieve %aconday effluent tlmlts;
(8) Centrifuge. A mechanical owkm In which centrifugal force Is used to separate solids from liquids or to separate Iiqulds of different densr'as;
(9) Chemical Addition Systems- The addhion of chemical(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment,
alkaflnhy control, ele.; the capability to experiment with dfflerent chemicals and different appricatlon points to achieve a specific result will be considered one
`em; the rapablilty to add chemkal(s) to dual units will be rated as one system; capability to add a chemical at a different application points for different
set. will result In the systems belrmg rated as separate "arm;
;heroical Sludge Conditioning. The addition of a chemk-X compound such as Brno, ferric chloride, or a polymer to wet sludge to coalesce the mass prior to
..pprkat3on to a dewaier4ng davits;
(11) Closed Clyne System& Use of holding ponds or holding tanks for containment of wastewater eontainfrng In o%anic, norr toxic materials from sand, gravel,
crushed stone or other t.lm!W operations. Such systems shall carry a maximum of two points regardless of pumping facliftles or any other appurtenances;
(12) Combined Removal of Carbonaceous BCD and Nitrogenous Removal by Nitrification- A single stage system required to achieve permit effluent i'mhs on BOD
and ammonla nitrogen within the same biological reactor;
(13) Dechlorinatlon. The partial or complets reduction of rsslduaj chlorine In a Squid by any chemical or physical process;
(14) Denl1r6cation Process. The conversion of nhrate•nhrogen to nitrogen gas;

(15) EkKirodlatysis. Process for rernoving Ionized safe from wafer through the use of ion -selective ion -exchange mambrares;
(16) Filler Press. A process operated mechanically for partially dowaiering sludge;
(17) Foam Separation. The planned frothing of wastowater or wastawaler effluent es a means of removing excessive amounts of detergent malanalt through
the Irtroductlon of air In the form of fine bubbles; also called foam fractionation;
(15) Grit Removal. The process of removing grt and other heavy mineral nutter from wastewater;
(191 Imhoff Tank. A deep two story waciewaiar I" consisting of an upper socilmentation Chamber and a lower sludge digestion chamber.
(20) irwrunwnted Flow Measurements. A device which indicates and records rate of Clow;
(21) Ion Exchange. A chemical process in which torts from two different molecules are exchanged;
(22) Land application:
(a) Sludge Disposal. A final sudgo disposal method by which wet sludge may be apprred to Land either by spraying on the surface or by subsurface injection
(l.e., chisel plow); (not applicable Ion types of sludge described In (1 1) of this Rule);
(b) Trealed Effluent. The process of spraying treated wastowalor onto a lard area or other methods of applicatlon of wastswalarprto a land area as a
means of final disposal or Imatmert;
(23) Microscrear. A low speed, continuously back -washed, rotating drum Filler operating under gravity conditions as a polishing method for removing
suspandad solids from eflluors;
(24) Nitrtlicaticn Process- The biochemical corrrorsion of unoxidlzod nitrogen (ammonLt and organic nitrogen) to oxidized nitrogen (usually nitrate);
(25) Nitrogenous Stage. A separate stage of w=owalor treatment designed for the spaeNic purpose of convening ammonia nitrogen to nitrate nitrogen:
(26) Phosphate Removal, Biological- The removal of phosphorus from wastewater by an oxirlantoxic process designed to enhance luxury uptake of phosphorus
by the microorganisrr,s;
(27) PollsNnip Pond. A hddfng pond following secondary treatmontt with sufficLern detention time to allow settling of finely suspended solids;
(26) Post Aeration Aeration fallowng convernional secondary imaimant units to lncrease efflwrn D.O. or for any other purpose;
(29) Post Aeration. (Cascade) A polishing method by which dissolved oxygen is added to the offivars by A nonmechanical, gravity means of flowing down a
series of steps or weirs; The lbw occurring across the paps or weirs moves in a fairly thin layer and the operation of the cascade requires no operator
adjustment; thus, zero points area assigned over though this is an essential step to meeting the limits of the discharge permit;
(30) Powdered to Granular Activated Carbon Feed. A biophysics; carbon process that utilizes biological aclivily and organic absorption by using powdered or
granular &ctfvaied Carbon; Virgin or regerarafod carbon is lead onmrollad Into the system;
(31) Preaerailon. A tank constructed to provide aeration prior to primary treatment;
(32) Prollminary Units. Unit operations in the treafiners process, such as screening and comminution, that prepare the liquor for subsequent major operations;
(33) Industrial Pretreatment.
(a) Pro -treatment Unh, Industrial. The cordkioning of a .mate at its source before discharge, to remove or to neutralize substance Injuriova to sewers and
troafinert processes or to effect a partial reduction In laid an the treatment process which is operated by the same governing body as the wastewater
treatment plan Being rated;
b) Pro-imalmern Program, Industrial - mutt be a State or EPA required program to receive points on the rating sheaf;
(34) Primary Clartliers. The first settling tanks through which wastewater is passed in a treatment works for the purpose of removing senleablo and suspended
solids and BOD which is associated with the solids;
(35) Pumps. All influent, effluent and in -plait pumps;
(36) Radiation. Disiniection or sterilization process utilizing devices emitting ultraviolet or gamma rays;
4171 Reverse pamosls. A tmatmerl process In which a heavy contarti ated Liquid is pressurized through a nwmbrans forming nearly pun liquid free from
suspended solids;
(381 Rotating Biological Contactors. A Mod biological growth process In which wastewater flows through tanks In which a series of partially submerged circular
Surfaces are rotated;
(39) Sand Filters_
(a) Intermittent Biological. Filtration of effluent following septic ranks. Lagoons, or some other treatmord process in which further blodecomposnlon is
expected to produce desked effluents; Hydraulic loading rates on these litters are computed In gpdiac and have a resulting low gpmrsf (lose than ona);
b) Recirculating biological - the same type o1 sand filter as defined in Subparagraph (39) (a) of this Rule with the added capability to recycle effluent back
through fie sand filler,
(40) Sand or Mixed -Media Flfters, A poflsh[rg process by which effluent limits are achieved through a funhw reduction of susperxW moll&;
(a) low rate -- gravity, hydraulically ballad flher whh loading rases In the one to three gprrVsf range;
(b) high rate — a pressure, hydraulicalty loaded finer with loading rates In the five 9prrVd range; At arty rate, the loading rate will exceed three gprWsf;
(41) Secondary Clariliers. A tank which follows the biological urns of troatmerni plant and which has the purpose of rarnoVing sludges aasoclafed with the
blological treatment units;
(42) Separate Sludge Reaerallon. A part of the contact stabilization process where the ecWated sludge Is trahsferrod to a tank and aerated before returning k
to The contact basin;
(43) Septic Tank A slngte-story settling tank in which tattled sludge Is In contact with the wastewater flowing through Ile tank; shall rat be appllnble for
septic tent systems sarving single family residences having rapacity of 2,D00 gallons or less which discharge to a nitrtficaion field;
(44) Sludge Digestion. The process by which organic or volatile matter and sludge is gasifled. Liquefied, mineralized or convened Into more stable organic mefter
through the activity of living organisms, which Includes neraled holding tanks;
(45) Sludge Drying Bads. An area comprising natural or angicial Layers of porous materials upset which digested savage sludge is dried by drainage and
evaporation;
(46) Sludge Elutrfatlon. A process of sludge conditloning in which certain constituents are rnmov9d by successive washings with fresh seater or plant effluent;
(47) Sludge Gat Utlltzalior. The process of using sewage gas for the purpose of heating bulidings, driving engines, etc;
(48) Sludge Ho4ng Tank (Aerated and NDruerated). A tank utilized for small wastewater treatment plants rta containing a digester In which sludge may be
lupt froth, and supamataM withdrawn prior to a drying maihod (i.e. sludge drying bads); This may be done by adding a wrwo amount of air slnpty to keep rite
sludge fresh. but not necessarily an amount that would be required to achieve slabiltzatbn of organic matter, A nortaoraled tank would simply be used to
decant sludge prior to dewaterintg and would not allow [ong par" (several days of deleniion) wtihout resulting odor problems:
(49) Sludge Incinerators. A furnace designed to bum sludge and to remove ali molsiure and combudble materials and reduce the sludge to a slerffe ash;
(50) Sludge S'tabil4igion (Chemical or Thermal} A process to make treated sludge leas odorous and pulmscble, and to reduce the pathogenic organism
content; This may bo done by phi adjustment, chlorine dosing, or by hens treatment;
(51) Sludge Thickener. A type of sedimentation tank in which the sludge Is parmltted to settle and thlckan through agltallon and gmvky;
(52) Stabilization lagoon. A type of oxidation Lagoon in which biological oxidation of organic matter Is affected by natural transfer of oxygen to the water from
air (not a polishing pond);
(53) Stand -Sy Power Supply. On she or portable electrical genonting equipment;
(54) Static Screens A stationary screen des "d to remove solids, Including non-biodagradafola particulate (fbatlabla solids, suspended solids and BQO
raduvion) from municipal and Industrial wa lewaler traafinent systems;
(55) Tortiary Treatment. A stage of treatment following secondary which Is primarily for the purpose of aNlueM ponishirlg; A seining lagoon or sand or coal titer
might be employed for this purpose;
(56) Thermal Pollution Control Device. A device provtding for the transfer of heat from a fluid flowing In tubes to another fluid outside the tubos, or vice versa;
or other means of mguLaang liquid tomperafums;
(57) Thermal Sludge Carditlorter. A cordhlaning process by which heat is added for a protracted period CO dme to improve the dewierabliky of sludge by the
solubiUzing and hydraulizing of the smaller and more highly trydraled sludge particles;
(58) Toxic Materials. Those wastes or combinatiors of wastee, including disease -causing agerts which &her discharge and upon exposure, ingestion, Inhalation
or asalmnasion Into any organism, shhor directly from the environment or irdirectly by Ingestion through food chalns, will cause death, drseaso, behavioral
abnormalities, cancer. genetic mutations, physbio9kal malfunctions (Including mailunctionts its reproduction) or physical ddoin lon,s, in such organlsins or their
offspring: Toxic mated" Include, by way of uluslrmlon and not limhalim lead, cadmium, chromium, mercury, vanadium, arsenic, zSnc, onho-rthro-chiorobanzens
(ONCE), polychk>lrWad biphenyl (PCB6, ,red dichlorodiphanyl trfchioroathane (DDT); and any other ratedals that have or may hereafter be determined to have
toxic properties;
(59) Trickling Filter, A biological treatment unlit consisting of a material such as broken store or rock over which wastowater Is distributed; A high rate trickling
}liter is one which operated of between 10 and 30 mgd per acre. A low rate trickling filter Is one which Is dostgned to operate at one to four mgd per acre;
(60) Trickling Filter (Packed Tower). A plug flow type of operation Ln which wastewater flows down through successive Layers or rntedla or flflrate material; Organ.
material is romo od corWualty by the active biological fixed growth In each successire Layer. This method may produce 'secondary quality otfluent, or may be
sdaptad to produce a nrtrlfied eMuent;
(61) Vacuum Fitter, Centrifuges, or Filar Pressas, Devices which are desfgrwd to remove excess wafer from either digested or undigested sludge prior to dispctsat
or further traalmenll.