WQ0008939_Final Permit_19941216

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. L. T. Mercer, Jr., Vice President
L. T. Mercer Company, Incorporated
General Rental Center
1119 Gum Branch Road
Jacksonville, North Carolina 28540
Dear Mr. Mercer:
AMI.PFA
14
C)EHNR
December 16, 1994
Subject: Permit No. WQ0008939
L. T. Mercer Co., Inc.
General Rental Center
Wastewater Recycle System
Onslow County
In accordance with your application received January 28, 1994, we are forwarding herewith Permit
No. WQ0008939, dated December 16, 1994, to L. T. Mercer Company, Incorporated for the construction
and operation of the subject wastewater recycle system.
This permit shall be effective from the date of issuance until November 30, 1999, and shall be
subject to the conditions and limitations as specified therein. Please pay particular attention to the
monitoring requirements in this permit. Failure to establish an adequate system for collecting and
maintaining the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, 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.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Ms. Angela Y. Griffin at [phone].
cc: Onslow County Health Department
Wilmington Regional Office, Water Quality
Contractors & Engineers Services, Incorporated
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535
An Equal Opportunity Affirmative Action Employer
Sincerely, �}
A. Presto oward, Jr., E.
Telephone [phone] FAX [phone]
50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
RECYCLE SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
L. T. Mercer Company, Incorporated
Onslow County
FOR THE
construction and operation of a 300 GPD wastewater recycle system consisting of a 19 foot by 20 foot
covered washbay area with a 3 foot by 8 foot by 4 foot collection pit, a 2 foot by 2 foot sump pit, an
oil/dirt/water separator, a multimedia filtration unit, a cleanable polyester cartridge filter, a 50 lb activated
carbon filter, a pump and pressurized supply tank, an ozone generator, and a flow control valve to serve
the General Rental Center, with no discharge of wastes to the surface waters, pursuant to the application
received January 2$, 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 November 30, 1999, and shall be
subject to the following specified conditions and limitations:
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other supporting
data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. The facilities shall be properly maintained and operated at all times.
4. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the 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 the request will be considered on its merits and may or may
not be approved.
5. Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting materials. Mail the Certification to the Water Quality
Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535.

b. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those
actions that may be required by this Division, such as the construction of additional or
replacement treatment or disposal facilities.
7. The Wilmington Regional Office, telephone number [phone], shall be notified at
least forty-eight (48) hours in advance of operation of the installed facilities so that an in-
place inspection can be made. Such notification to the regional supervisor shall be made
during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday,
excluding State Holidays.
8. The residuals generated from these treatment facilities must be disposed in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
9. 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 facility.
10. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
11. Diversion or bypassing of untreated wastewater from the treatment facilities is prohibited.
12. Any monitoring deemed necessary by the Division of Environmental Management to insure
surface and ground water protection will be established and an acceptable sampling
reporting schedule shall be followed.
13. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
14. The Permittee or his designee shall inspect the wastewater recycle 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
three years from the date of the inspection and shall be made available to the Division of
Environmental Management or other permitting authority, upon request.
15. 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 recycle system at any reasonable time for the purpose
of determining compliance with this permit, may inspect or copy any records that must be
maintained under the terms and conditions of this permit, and may obtain samples of
groundwater, surface water, or leachate.
15. 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 15A NCAC 2H .0205
(c)(4).
17. 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 143-215.5(a) to 143-215.6(c).
18. 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.
2

19. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of this project.
20. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington 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 at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such as
the dumping of the contents of a basin or tank, the known passage of a slug of
hazardous substance through the facility, or any other unusual circumstances;
b . Any process unit failure, due to known or unknown reasons, that renders the facility
incapable of adequate wastewater treatment, such as mechanical or electrical failures of
pumps, aerators, compressors, etc.;
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass
directly to receiving waters without treatment of all or any portion of the influent to
such station or facility; or
d. Any time that self-monitoring information indicates that the facility is not in compliance
with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 days following first knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
21. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202.
22. 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.
Permit issued this the l6th day of December, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston oward, Jr., P.E.) Director / i
Division of avironmental Management
By Authority of the Environmental Management Commission
Permit No. WQ0008939
3

Permit No. WQ0008939
December 16, 1994
1, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project, , for the
Project Name Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
4
Registration No.

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RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS.
Name of Facility:
Owner or Contact Person:
Mailing Address: ! I SCh >Jd7/ /(/G e-�c
;ounty: Telephone: f)
Present Classification: New Cacility Existing Facility
NPDES Per. No. NC00 Nondisc. Per. No.WQ Health De t.Per No.
Rated by: & 6t n _ _ _Telephone: Date: C g�
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone:
Check Classification(s): Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One) I It III IV Total Points:
IN-ahrrr PROCESSES AND RELATED CONTROLEQUIPMEN7 WHICH ARE AN INTEGRA! PART OF INDUSTRIAL PRODUCTION SPALL
NOT BE CONSIDERED WASTE TREATMENT FOR. THE PURPOSE OF CLASSIFICATION, ALSO SEFTIC TANK SYSTEMS CONSISTING
ONLYOFSEPTIC -12, 'K AND GRAVITY NITRIFICATION LINES ARE_EXEMPT FROM CIASVFICATIQN"
SUBSURFACE CIAS.SI FICATION
(check all units that apply)
1. septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. sand filters
5. grease trapliinterceplor
6. oillwater separalors
gravity subsurface treatment and disposal:
pressure subsurface treatment and disposal:
SPRAY IRRIGATION CLASSIFICATION
(check all units that apply)
1. pretiminary treatment (definition no. 32 }
2. lagoons
3. seplic tanks
4. pump tanks
5, pumps
6. sand fillers
7. grease trapAnterceptor
a. oil/water separators
9. disinfection
1D. chemical addition 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)
I. Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CLASSIFICATION
The following systems shall be assigned a Class I classification, unless the flow is of a significant quantity or the technology is
unusually complex, to require consideration by the Commission on a case-by-case basis: (Check if Appropriate)
1. Oil/waler Separator Systems consisling only of physical separation, pumps and disposal;
2. Septic TanWSand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge:
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical
treatment for algae or nulrienl control, and direct discharge;
4. Closed-loop Recycle Systems;
5. Groundwater Remedialion Systems consisting only of pumps, .i shipping, carbon adsorption, d4i�#eetien and
disposal;
6, Aquaculture operations with discharge to surface waters;
7. Water Plant sludge handling and back -wash water treatmer'.;
Seafood processing consisting of screening and disposal.
Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified if permitted
alter July 1, 1993 or if upon inspeclion 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 rectassificalion by the Commission, in writing.

_._-_..._..- .__...-.___ 1_... -r -r...-. r.-.._..-.
plaints)
ITEM POINTS
( 1) Industrial Pretreatment Units or Industrial Pretreatment Program (see definition No. 33) ...................................................4
(2) DESIGN FLOW OF PLANT 1N gpd (not applicable to non-ccniaminaied coaling waters, sludge handling
facilities for water purification plants, totally closed cycle systems(see definition No. 11), and facilities
consisting only of Ilam (4)(d) or Items (4)(d) and (11)(d)j
0 - 20,000..............................................................................................................................................2
20,001 - 50.000......................................................................................................................................
50.001 100,000, . .................................................................................... I ..................... 3
100.001 - 250.000 ....... ....................... ........................................................................................... .........A
250,001 • 5D0,D00..................................................................................................................................5
500.001 - 1,000,000................................................................................................................................8
1.000,001 - 2,000.000...........................................................................................................................10
2,000,001 (and up) rate 1 point additional for each 200.000 gpd capacity up to a
maximumof........................................................................30
Design Row (gpd)
(3) PRELIMINARY UNITWROCESSES (see definition No.32)
(a) Bar Screens ............................................................................................_.............:....:.....,..........................1
or
(b) Mechanical Screens, Static Screens or Comminuting Devices...........................................................................2
(c) Grit Removal..............................................................................................................................................1
or
(d) Mechanical or Aerfed Grit Removal.............................................................................................................2
(e) Flow Measuring Device................................................................................................................................1
or
(f) Instrumented Flow Measurement..............................................................................:.................................2
(g) Preaeration...............................................................................................................................................
2
(h) Influent Flaw Equalization..........................................................................................................................2
(i) Grease or Oil Separators - Gravity ...................... ........... _.... ................. .......................................................
2
Mechanical.......................................................,........................................................................................ 3
Dissolved Air Flotation.........................................................................:......................................................8
()1 Prechlorination.........................................................................................................:...............................5
(4) PRIMARYTREATMENTUNrT&PROCESSES
(a) Septic Tank (see definition No. 43)............................................................................................................2
(b) Imhoff Tank..............................................................................................................................................5
(c) Primary Clarifiers.........................................................................................................................................5
(d) Sailing Ponds or Settling Tanks for Inorganic Non-toxic Materials (sludge handling facilities for
water purification plants, sand, gravel, stone, and other mining operations except recreational
activities such as gem or gold mining)........................................................................................................2
(5) SECONDARY TREATMENT UNITSrPROCESSES
(a) Carbonaceous Stage
(i) Aeradon-High Purity Oxygen System...............................................................................20
DiffusedAir System.......................................................................................................1 0
Mechanical Air System (fixed, floating or rotor)..................................................................8
Separate Sludge Reaeration.............................................................................................3
(i!) Trickling Rkar
HighRate.......................................................................................................................7
StandardRate...............................................................................................................5
PackedTower.................................................................................................................5
Biological Aerated Filler or Aerated
Biological Rfar.............................................................................................................10
(!v) Aerated Lagoons..........................................................................................................10
(v) Rotating Biological Contactors......................................................................:...............10
(vi) Sand Filters -intermittent biological..............:...................................................................2
Recirculating biological...— ............................................................................ . ............ __3
(vii} Stabilization Lagoons.....................................................................................................5
(viii) Clarifier ..................................... 5
......................................................................................
(€x) Single stage system for combined carbonaceous removal of BOD and nitrogenous
removal by nildficalion (see definition No. 12)(Points for this item have to be in
addition 10 !tams (5)(a)(i) through (5)(a)(viii),
utilizing the extended aerarlon process (see definition No.3a)...........................................2
utilizing other than the extended aeration process..................................................:.........8
(x) Nutrient additions 10 enhance BOD removal-------------------„•-,-,,,,,,,,,,,,,,,,,,,,,,.,,__...,,,,,,,,,,.,,,5
(xi) Biological Culture (`SuperSugs')addition........................................................................5
(b) Nitrogenous Stage
(i) Aeration - high Purity Oxygen System.............................................................................20
DiffusedAir System.......................................................................................................10
Mechanical Air System (fired, floating or rotor) .................................................................. 8
Separate Sludge Reaeration..................
...............................................................3
(€!) Trickling Filter -High Rate...................................................................................................7
Slandard Rate ............................................ 5
PackedTower ............................................... .................................................................. 5
Biological Aerated Rher or Aerated Biological Filter....................:....:...................................10
(iv) Rotating Biological Contadors.....................................................................:................10
(v) Sand Filter - intermittent biological .............
Recirculating biological., ...................................................................... ...........................
NOClarifier............................................................................................:.............................5
(6) TERTIARY OR ADVANCED TREATMENT UNITS'PROCESSES
(a) Activated Carbon Bads -
without carbon regeneration.....................................................................................................5
with carbon regeneration.......................................................................................................15
(b) Powdored or Granular Activated Carbon Food -
without carbon regeneration................................................................ ..............................5
with carbon regeneration.....................................................................................................1 5
(c) Air stripping.............................................................................................................................................5
(d) Denitrificalion Process..............................................................................................................................10
(0) Electrodiatysis.............................................................................................................................................5
(!) Foam Separation........................................................................................................................................5

CLASSIFICATION
Ciassf...........................................................................................................5-25 Points
ClassIt .......................................... ..... _........... ............................. ................ 26-50 Points
Ctassill.......................................................................I................................51.65 Points
ClassIV.......................................................................................................66-Up Points
-----------------------------------------------------
Facilities having a rating of one through four points, inclusive, do not require a certified operator.
Facilities having an activated siudge process will be assigned a minimum classification of Class II.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classflicatjon of Class Ill.
0001 DEFINITIONS
The lollo ing definitions shall apply dtroughout this Subchapter.
;1} Activated Carbon Beds. A physicalichemical method to., reducing soluble organic material Prom waslawalar affluent; The column -typo bads used in this method will have
s Ilow rate varying from two to sight gallons per minute per square loot and may be either upflow or downflow carbon bads. Carbon may or may not be regenaralad on the
vastawaler treatment plant site;
2) Aerated Lagoons, A basin in which all solids era maintained in suspension and by which biological oxidation of organic mutter is reduced through arlificiaily accaleroted
ransler of oxygen on a f€ow•lNough basis;
3) Aeration. A process of bringing about intimate contact between air or High purity oxygen in a liquid by spraying, agitation or diffusion;(3a) Extended Aeration. M
ictivaled sludge process utilizing a m6irnum hydraulic detention time al $8 hours.
1) Agdr• ixalfy managed site, Any silo on which a crop is produced, managed, and harvested (Crop includes grasses, grains, roes, olc.);
5) Air 'ng. A process by which the ammonium ion is first convened to dssolvad amvrionia (pH adjustment) with the ammonia then released to the armosphere by
alysic, is: or other simlar processes wNch remove potroloum products such as benzene, toluene, and xylene;
61 Cii Aegeneration, The regeneration of exhausted carbon by Sha use of a furnace to pfovida extremely high temperatures which voratilize and oxidize fie absorbed
mpuritios;
7) CaMon"Coo" Stage, A Gage of wsswe aler Vealmoent designed to achieve 'secondary- atrluent limits:
8) Cenviruge. A mechanical davits in wYvch ce..,tr:!vgat rofce is used 10 separate solids I+om Iiods or to soparale liquids of ditfwani densibas;
9) Chemical Addition Systems. The ac iiion of c}iomlcags) to waslewaler at an application point [of purposes of Irnproving solids removal, pH adjustment, Alkalinity cmilrol,
itc.; 1119 capability to expenment wirl dii!orent chanvcals and dllafenl application points to achieve a specific result will be considered one system; the capabiiiy to add
( n)
Lama Application o! : . .lad tllluent (see definition No. 22b) (not applicable for sand,
gravel, Slone and olha: similar mining operations) by high rate Infiltration......................................................4
(i)
Microscreens.............................................................................................................................................5
(1)
Phosphorous Removal by Biological Processes (See definition No. 26).........................................................20
(k)
Polishing Ponds - without aeratlon............................................................................................................2
withaeration.................................................................................................................5
(1)
Post Aeration - cascade............................................................................................. .................................
0
diffusedor mechanical........................................................................................................2
(m)
Reverse Osmosis ............ _..........................................................................................................................5
(n)
Sand or Mixed -Media Filters - tow rata..........................................................................................................2
highrate......................................................................5
(o)
Treatment processes for removal of matal or cyanide...................................................................................15
(p)
treatment processes for removal of toxic materials other than metal of cyanide..............................................16
(7)
SLUDGETREATMENT
(a)
Sludge Digestion Tank - Healed (anaerobic)...............................................................................................10
Aerobic..........................................................................................._...........................................5
Unhealed anaerobic...............................................................................................3
(b)
Sludge Stabilizalion (chemical or thermal)...................................................................................................5
(c)
Sludge Drying Beds- Gravity......................................................................................................................2
VacuumAssisted ..... ............... ..................................................................................................... *............
-.,5
(d)
Sludge Elutriation.....................................................................................................................................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
(1)
Sludge bolding Tank - Aerated...................................................................................................................5
Non-aerated .................................................... .........................................................................................2
(j}
Sludge Incinerator (not Including activated carbon regeneration), ............ ...................................................10
(k)
Vacuum Filter, Centrifuge, or Filter Press or other similar dewatering devices...................................................10
(6)
RESIDUALS
UTILIZATIONIDISPOSAL (including incinerated ash)
(a)
Lagoons..................................................................................................................................................2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land
application permit or landlilt permit..............................................................................................................2
(c)
Dedicated Landlill(burial) by the permittee of the wastewater lrealmenl lacility..............................................5
(9)
DLANFECTICN
(a)
Chlorination..............................................................................................................................................5
(b)
Dechlorinadon...........................................................................................................................................5
(c)
Ozone.....................................................................................................................................................5
(d)
Radiation..................................................................................................................................................5
(1 0)
CHEMICAL
ADDITION SYSTEM(S) ( see definition No, 9) [not applicable to chemical additions rated as Item
(3)(j),
(5)(a)(xi), (6)(a), (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 points each:
List
...................................................................... ............ ...... ................ I .......................
.... 5
...................................I.__.........,..................................................................................5
............................................................................................................................5
.........................................................................................................................5
(1 1)
MISCELLANEOUS
UNITSJPFIOCESSES
(a)
Holding Ponds, Holding Tanks or Serlling Ponds for Organic or Toxic Materials including wastes
from mining operations containing nitrogen or phosphorus compounds in amounts significantly
greater than is common for domestic wastewater.........................................................................................4
(b)
E41uenl Flow Equalization (not applicable to storage basins which are inherent in land application
systems)..................................................................................................................................................2
(c)
Stage Discharge (not applicable to storage basins Inherent in land application systems)..................................5
(d)
Pumps..................................................................................................................3
(e)
Stand -By Power Supply.....................................................................................•.......................................3
(f }
Thermal Pollulion Control Device.............................................................•...................................................3
TOTAL POINTS ........ ......... :........................................... ,........... .
CLASSIFICATION
Ciassf...........................................................................................................5-25 Points
ClassIt .......................................... ..... _........... ............................. ................ 26-50 Points
Ctassill.......................................................................I................................51.65 Points
ClassIV.......................................................................................................66-Up Points
-----------------------------------------------------
Facilities having a rating of one through four points, inclusive, do not require a certified operator.
Facilities having an activated siudge process will be assigned a minimum classification of Class II.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classflicatjon of Class Ill.
0001 DEFINITIONS
The lollo ing definitions shall apply dtroughout this Subchapter.
;1} Activated Carbon Beds. A physicalichemical method to., reducing soluble organic material Prom waslawalar affluent; The column -typo bads used in this method will have
s Ilow rate varying from two to sight gallons per minute per square loot and may be either upflow or downflow carbon bads. Carbon may or may not be regenaralad on the
vastawaler treatment plant site;
2) Aerated Lagoons, A basin in which all solids era maintained in suspension and by which biological oxidation of organic mutter is reduced through arlificiaily accaleroted
ransler of oxygen on a f€ow•lNough basis;
3) Aeration. A process of bringing about intimate contact between air or High purity oxygen in a liquid by spraying, agitation or diffusion;(3a) Extended Aeration. M
ictivaled sludge process utilizing a m6irnum hydraulic detention time al $8 hours.
1) Agdr• ixalfy managed site, Any silo on which a crop is produced, managed, and harvested (Crop includes grasses, grains, roes, olc.);
5) Air 'ng. A process by which the ammonium ion is first convened to dssolvad amvrionia (pH adjustment) with the ammonia then released to the armosphere by
alysic, is: or other simlar processes wNch remove potroloum products such as benzene, toluene, and xylene;
61 Cii Aegeneration, The regeneration of exhausted carbon by Sha use of a furnace to pfovida extremely high temperatures which voratilize and oxidize fie absorbed
mpuritios;
7) CaMon"Coo" Stage, A Gage of wsswe aler Vealmoent designed to achieve 'secondary- atrluent limits:
8) Cenviruge. A mechanical davits in wYvch ce..,tr:!vgat rofce is used 10 separate solids I+om Iiods or to soparale liquids of ditfwani densibas;
9) Chemical Addition Systems. The ac iiion of c}iomlcags) to waslewaler at an application point [of purposes of Irnproving solids removal, pH adjustment, Alkalinity cmilrol,
itc.; 1119 capability to expenment wirl dii!orent chanvcals and dllafenl application points to achieve a specific result will be considered one system; the capabiiiy to add

eherTical(s) to duat units will be rated as one system; capability to add a chemical at a dlierent application points for different purposes will resit In the systems being
rated as separate systems;
(10) Chemical Sludge C."iboring. The addition of a chemical compound such as time, lemic chloride, or a polymer to wet sludge to coalesce the mass prior Io its
epp!ieation to a dowatoring device;
(11) COsed Cycle systems. Use of fmidng ponds or holing tanks for containment of waslewa€er containing Inorganic, non-toxic materlals horn sand, gravel• crushed
stone or other similar operations. Such systems &hail carry a maximum of two points regardless of pumping Imlices or any other appurtenances;
(12) Combined Rarrhoval of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A single stage system required to achieve permit effluent firriLs on BOD and
ammonia rilfogen within the same biological reactor;
(13) Qechlorinal;on. The partial or complete reduction of residual cNorine In a liquid by any chemical or physical process;
(14) Danitrihcation Process. The conversion of nitrate-hitroger to Nirogen gas;
(15) Eiectrodalysis. Process for rormoving Ionized saris from waler through the use of lon-seieciive Ian -exchange membranes;
(16) Filter Press. A process o;effted mechanically for partially dowatering sludge;
(17) Foam Separation. The piFroocl frothing of wastewater or waslawalor eluent as a means of removing excessive amounts of detergent materials through the
introdJction of air In the form of fine bubbles; also called foam fractionation;
(18) Gnt Remaval. The process of removing grit and clrw hoavy mineral manor from wastewater;
(la) hznoil Tank. A deep two story wastewater lank consisting of an upper sedimentation chamber and a lower sludge digestion dlarnber.
(20) Instrumented Flow Measurement A device which indcales and records rata of flow;
(21) ion Exchange. A charrical process in wNch ions Irom two Gllerenl molecules are exchanged;
(22) Land application.
(a) Sludge Disposal. A final sludge disposal method by which wet sludge may be applied to land either by spraying on the sursaca or by sulsurlace injection (i.e..
cniso( plow); Incl applicable for types of sludge described in ti 1) of this Rule):
(b) Treated Erfloort. The process of spraying treated wastewater onto a land area or other methods of appllcatim of wastewater onto a land area as a means of final
disposal or troatmam;
(23) Microscroen. A low speed, contimxusly back -washed, rotating drum filter operating under gravity conduons as a paishirg method for removing suspended solids
Irom elfluent;
(24) Nitrification Process. The biochemical conversion of unoxidzod nitrogen (ammonia and agaric nitrogen; to oxidized ritrogon (usually nitrala),
(25) Nitrogenous Slago. A saparate stage of wastewater troatmenl designed for the apecil,c purpose of converting arnmoria nitrogen to nitrate nitrogen;
(26) Phosphate Removal, Soiogica'. The removal of phosphorus from wastewater by an oxic/anoxic process designed to enhance luxury uptake of phosphorus by the
microorganisms;
(27) Polishing Pond. A hoidnc pond loilowing secondary trsaiment with sulf}cient detention lime to allow setting of finely suspended solids;
(28) Post Aeration. Aeration following conventional secondary troatrnont units to increase effluent Q.O. or la any other purpose;
(29) Post Agitation. (Cascade) A polishing method by when dissolved oxygen is added to Chs slflumnt by a normecharica€, graviily means of [towing down a series of
slaps or weirs; 'The flow occurring across the slops or weirs moves in a lairly thin layer and the operation of the cascade requires no operator adjustllant; thus, taro
points are assigned even though this is an essental siep to meeting the limits of the discharge permit;
(30) Powdered to Granular Activated Carbon Feed. A biophysical carbon process Ilial utilizes biological activity and organic absorption by using powdered or granular
ectivaled carbon; Virgin or regeneralsd carbon is teed conlrofied into the system;
(31) Preaeral€on. A tar* constructed to provide aeration prior to primary troatmnt:
(32) Preliminary Urils. Until cl"(atons in the treatment procass, such as screening and corrmiru4on, trul prepare trim liquor lair rursequent rau cir operations;
(33) Industrial Pretreatment.
(a) Pre-Iroatnon: Unit. Industrial. The condilioring of a waste at IIs source before discharge, to remove or to neutralize substances injurious 10 sewers and treatment
procassms or to effect a partial reduction in load an the triatment process which Is operatad by tine same governing body as the wastewater treatment plant being
rated;
b) Pre-taalmont Program, Industrial - must be a Stale or EPA roquired program to receive points on the rating shoes;
(34) Primary Garifiers, The first settling lanhks ttyough vwi-ich wastewater is passed in a treatment works for the purpose of removing settleable and suspended solids and
1300 which is associated with the solids,
(3s) Pumps. All intuent, eluent and in -plant pumps;
(36) Radiation, Disinfection or sterilization process utilizing devices orni ting ultraviolet or gamma rays;
(37) Reverse Osmosis_ A treatment procass in which a (wavy contaminated liquid is pressurized through a membrane forming nearly pure liquid tree from suspended solids;
(3E) Rotating Biological Contractors. A fixed biological growtn process in which wastewater Aows through tanks in which a series of partially submerged circular surlaces
are rotated;
(34) Sand Filters;
(a) Inteirrlif:enl Biological. IRTlration of affluent following septic tarhks, lagoons• or some other treatment process in which iL-ghat biodeicomposition is expected to
produce desired effluents; Hydraulic loading rates on these f.ltmrs are computed in gpd/ac and have a realung law gprr,'si (sass *.Llan one);
U, Pecircufating biological - the same type of sand Neer as defined in Subparagraph (39) (a) of this Rude with the added capability to recycle effluent back tfvough the
sand filler;
(40) Sand o• hfixed-Media Filters. A polishing process by which allivart limits are achieved through a further raduction of suspended solids;
(a) Ion rate -- gratify, hydraulically loaded filter •win leading rates In the one to three gomrsf range;
(b) high rase •- a pressure, hydraulically loadod litter with loading rates in the five gpmisl range; At any rate, the foadng rate wit! exceed three gprvsh,
(41) Secondary C+arilors. A lank which follows the biological unit al treatment plant and which has the purpose of removing sfiudges associated win the bioiogical
veatmant units;
(42) Separate SIudo , Reaeralion- A part of the contact stabilrzaGon process where the activated sludge is transferred to a lank and aerated before relurrhing it to the
contact basin;
(43) S&plic Tank. A single -story settling tank in which settled sludge is in contact with rhe wastewater flowing through the tank; shall not be applicable for septic tank
systems servino Single family residences having Capacity of 2,000 gallons or fess which discharge to a int rification field;
(4-4) Sludge Digestion. The process by wtich agaric or volatile matter arhd sludge is gasified, lighefled, mineralized or converted into more stable organic matter through
tha ■cliAly of living organisms, which includes aerated holding tanks;
(45) Sludge Dryfrg Bads. An area comprising natural or artificial layers of porous materials upon which digested sewage sludge is dried b•; drainage and evaporation;
(46) Sludge Fluviat:orl. A peoces, of sludge conditionng in which certain constituents are removed by successive washings with fresh water or plant effluent;
(47) Sludgo Gas Utilizal'oru. The procass of using sewage gas lot the purpose of heating buitdngs, driving engines, etc.:
(48) Sludge Holding Tank (Aerated and Nonaerated). A tank utilized for smair wastawaler treatment plants no: containing a digester In which sludge may be kept fresh,
and supernalAnl vdihdfawn prior to a drying method (i.a. sludge drying bads); This may be done by adding a small amount of air simply to keep r* sludge trash, but not
necossarily an amount that would be required to achiave sfaWizalim of organic matter. A nonaerated lank wood simply be used to decant sludge prior to dewatering and
wcutd not allow long peric-ds (several day's of detention) without resuifing odor problems;
(49) gudvy Incinerators. A furnace designed 143 bum sledge and to remova all moisture and cornbusHble materials and reduce the sludge to a sterile ash:
(50) Sludge SiaNliza5on (ChemicaT or Thermal). A process to make treated sludge less odorous and putrescibla, and 10 roduco the pathogenic organism content; Ttis may
be dome by pH adjusanenl, chlorine dosing, or by heal treatment;
(5t) Sludge Tlici.ena.. A type or sedimentation lank in which the sludge is permined to settle and INckan through agitation and gravily:
(52) Sla'hilization Lagoon. A type Of oxidation lagoon in which biological oxidallon of agaric matter is eliectod by naG.ral transfer of oxygen to the water from air (not a
polishing pc -id):
(53) Stand
-By Power Supply. On site or portable electrical generating equipment;
(54) Slate Screens. A Stationary screen designed to remove solids, including non -biodegradable particulate (Aoalable solids, suspended solids and 13OD reduction) from
municipal and industrial wastewater treatment systems;
(55) Tertiary Treatmont. A slags of treaimen; following secondary which is primarily lar the purpose of aliluent poiishing; A settling lagoon or sand or coal lifler Tright be
employed for this purpose;
(56) Thermal Poli,con Control Device. A device providing for the transfer of heal broth a fluid Mowing in tubas to another tud oulside the tubes. Or vice versa; or ethsr
mans of regulating liquid tarrnperatures;
(57) Thermal VAge Conditionor. A conditioning process by which heat is added lot a protracted period of time to improve the dewalerabflity of sludge by the solubilizing
and hydrauizine of the smaller and more higNy hydrated sludge particias;
(58) Toxic Materials. These wastes or combinations of wastes, including dksoaso-causing agents which after dtscharga and upon exposure. Ingestion, inhalation ,W
assimilation into any orgarism, either directly from the ontvirorhmant or indirectly by Ingestion through food chains, wiii cause death, disease, behav€o(al abnormalities,
ranter, genel;c mutations, physiological malfunctions (including rallunctons in (eproduction) or physical deformations, in such organisms or their offspring; Toxic materials
include, by way of illustraton and not liritaliom lead, cadmium• chromium, mercury, vanadium, arseric, zinc, amo-nitro-c teroberaone (ONCE), polychlorinated biphenyls
(PCBs) and dichlorod+phenyl trichloroethane (DDT); and any other materials that have or may hurealior be determined to have toxic properties;
(591 Trickling filar. A Gologicai I-antmenl uril consi-•er.g of a material such as broken stone or rock over which wasiawator Is dstributad; A high rate lrickGng filler is one
wlicn ope•at&d at between t0 and 30 mgd per acro. A '.ow rate trickling filter is one which is designed to goorale al one to lour mgd per ata;
(Fo) Trickling rCder (Packed To..•er). A plug flow type of operation in which wastewater flows down tryough successive layers Of meds or iiftrate material; Organic malarial
is removed contiruually by the active biological fixed growth in each successive layer. This modhod may produce 'secondary- quality altuent. or may be adapted to
produce a ntritiod ellluenl:
(6t) vacuum Filler. Cenuituges, or Filter. Presses Devices which are dasignud to remove excess water from either digested or undigested sludge prior to disposal or
further Irealmmr.l.