WQ0008129_Final Permit_19931202

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
December 2, 1993
Mr. James Richard Adams,
Distribution Safety & Environmental Planner
Exxon Chemical Americas
13501 Katy Freeway
Houston, Texas 77079-1398
Dear Mr. Adams:
__ T.-A.WA
C)EHNF1
Subject: Permit No. WQ0008129
Exxon Chemical Americas
Exxon Terminal 44380
Groundwater Remediation
New Hanover County
In accordance with your application received July 6, 1993, we are forwarding herewith Permit No.
WQ0008129 dated December 2, 1993, to Exxon Chemical Americas for the construction and operation of
the subject groundwater remediation facilities to serve Exxon Terminal #4380. Please note that any
sediment or sludge accumulated by the groundwater remediation facilities must be disposed of in
accordance with State laws and regulations. Please note the high water alarm devices for the infiltrator
units must be maintained and monitored to prevent infiltration gallery failure, as the intended 37
GPD]sq.ft. infiltration rate for this project is very high compared to other systems in the State.
This permit shall be effective from the date of issuance until November 30, 1998, and shall be
subject to the conditions and limitations as specified therein. Please pay particular attention to the
monitoring requirements in this permit. Failure to establish an adequate system for collecting and
maintaining the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable to you, you have
the right to request an adjudicatory hearing upon written request within 30 days following receipt of this
pen -nit. This request must be in the form of a written petition, conforming to Chapter 150B of North
Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447,
Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

One set of approved plans and specifications is being forwarded to you. If you need additional
:.formation concerning this matter, please contact Mr. John Seymour at 91.9/ 733-5083.
Sincerely,
6 CL"� 0.
A. Prest Howard, Jr., P.E.
Director
cc: New Hanover County Health Department
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Jack Floyd, Groundwater Section
Law Engineering and Environmental Services
Facilities Assessment Unit
Training and Certification

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
INFILTRATION GALLERY 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
Exxon Chemical Americas
New Hanover County
construction and operation of a 144,000 GPD groundwater remediation facility consisting of a total of 24
recovery wells each provided with a pneumatic submersible pump at 3 gpm to 5 gpm rates, a 110 gpm
Puritron ultraviolet disinfection unit, a 1,450 gallon capacity surge tank with chemical feed capability
(hydrogen peroxide or magnesium oxide), a 1.5 Hp in -line transfer pump, two tray type 135 gpm air
strippers (using four shallow trays each) in series each with a 900 CFM blower, a 1.5 Hp in -line transfer
pump, an in Iine 7.5 Hp effluent pump, a 110 gpm sediment bag type filter, two 50 gpm carbon filters in
parallel at 6700 lbs of carbon each, four low pressure spray disposal trenches totaling 3,825 square feet
using infiltrator chambers with high water alarm system having logic circuitry to terminate pumping
operations upon high water conditions, and all necessary and associated piping, valves, controls, and
appurtenances to serve Exxon Chemical Americas Exxon terminal #4380 with no discharge to the surface
waters, pursuant to the application received fuly 6, 1993, 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 October 31, 1998, and shall be subject
to the following specified conditions and limitations:
I. PERFORMANCE STANDARDS
1. 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 and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
29535, Raleigh, NC 27626-0535.
2. The Wilmington Regional Office, telephone number 910/ 395-3900 shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an in -place
inspection can be made. Such notification to the regional supervisor shall be made during
the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday,
excluding State Holidays.

3. This perm.L shall become voidable if the soils fail to adequately absorb the wastes and may
be rescinded unless the facilities are installed, maintained, and operated in a manner which
will protect the assigned water quality standards of the surface waters and ground waters.
4. 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 as
may be required by this Division, such as the construction of additional or replacement
treatment or disposal facilities.
5. 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.
5. Any sludge generated from these treatment facilities must be disposed of in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
7. Diversion or bypassing of the untreated groundwater from the treatment facilities is
prohibited.
II. OPERATION AI,SD MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. 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. Once
the facility is classified, the Permittee must submit a letter to the Certification Commission
which designates the operator in responsible charge within thirty days after the wastewater
treatment facilities are 50% complete.
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.
III. MONITQRING AND REPORTING REQUIREMENTS
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.
2. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone
number 910/ 395-3900 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:
2

a. Any occurrence at -the wastewater treatment facility which results in the treatment of
significant amoiix �.�; 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 render 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.
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.
IV. GROUNDWATER REQ IIREMENTS
L Monitor wells 1, 2, 3, 3D, 4, 5, 7, 8, 22, 23, 29, 30, 31, and Px-5 shall be sampled every
March, July, and November for the following parameters:
EPA Method 602 including MTBE (including Xylenes, MTBE, and Isopropyl ether)
EPA Method 610
pH
Water Levels
The measurement of water level must be made prior to sampling for the remaining
parameters. The depth of 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 relative elevations of the measuring point for each of the monitoring wells.
2. The effluent from the treatment system shall be sampled once every two (2) weeks for the
first three (3) months and monthly thereafter for the parameters specified below:
EPA Method 602 (including Xylenes, MTBE, and Isopropyl ether)
3. The effluent of the treatment system shall consistently comply with. the groundwater
standards of 15A NCAC 2L.
4. The Compliance Boundary for the disposal system is specified by regulations in 15 NCAC
2L, Groundwater Classifications and Standards.The Compliance Boundary 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 beyond the Compliance Boundary is subject to penalty provisions
applicable under General Statute 143-215.6A(1)a.
3

5. Also in accordance with 15A NCAC 2L, Groundwater Classifications and Standards. A
REVIEW BOUNDARY is establishc.i around 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.
6. All monitoring data (groundwater and effluent) shall be submitted to the Groundwater
Section, P.O. Box 29535, Raleigh, NC 27626, every April, August, and December. All
groundwater data should be submitted on Form GW-59. All effluent data for a period may
be submitted along with the groundwater monitoring data.
7. Any additional groundwater duality monitoring as deemed necessary by the Division of
Environmental Management shall be provided.
8. All components of the groundwater recovery, treatment and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system.
9. The groundwater recovery treatment and disposal system shall be inspected weekly. If it is
determined that the system is malfunctioning, all repairs should be made as soon as
possible and reported to the Wilmington Regional Office.
10. All wells that are constructed for purposes of groundwater monitoring shall be constructed
in accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other than
Water Supply) and any other State and local. laws and regulations pertaining to well
construction.
V . INSPECTIONS
1. Adequate inspection, maintenance and cleaning shall be provided by the Permittee to insure
proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the groundwater recovery and treatment
facilities to prevent malfunctions and deterioration, operator errors and discharges which
may cause or lead to the release of wastes to the environment, a threat to human health, or a
nuisance. The Pere- tree shall keep an inspection log or summary including at Ieast the date
and time of inspection, observations made, and any maintenance, repairs, or corrective
actions taken by the Permittee. This log of inspections shall be maintained by the Permittee
for a period of three years from the date of the inspection and shall be made available upon
request to the Division of Environmental Management or other permitting authority.
Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the disposal site and facility at any reasonable time for the
purpose of determining compliance with this permit; may inspect or copy any records that
must be kept under the terms and conditions of this permit; or may obtain samples of
groundwater, surface water, or leachate.
VI. -GENERAL CONDITI NS
This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications and other supporting data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.

3. This permit is not transferable. In the event ther.,: -. 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 this request will be considered on its merits and may or may
not be approved.
4. The Permittee shall obtain a well construction permit from the Wilmington Regional Office
prior to construction of the recovery wells.
5. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of this project.
6. 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 143-215.6A to 143-215.6C.
7. 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).
8. 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.
9. 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 2nd day of December, 1993
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
0 J, �) /-' o -()a
OJI - CYYrJ , 4
A. Presto Howard, Jr., .E., Director
Division 6f Environmental Management
By Authority of the Environmental Management Commission
Permit No. WQ0008129
5

Permit No. WQ0008129
December 2, 1993
Engineer's Certification
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
Location
for the
Pernuttee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
Signature
Date
Registration No.

i

.tiAIINLr �t;HL.t t-UK L;I_AS61F1CA-IIUN OF WATER POLLUTION CONTROL SYSTEMS
Name; of
Owner o:
Mailing Address: &1 7. ` C'kJ n = �— �-
County:PriJ}>'ir��e'c'T -- -- Telep one:��°� ��fr��
Present Classification: New Facility ✓ Existing Facility
NPZES Per. No. NC30 ondisc. Per. No.WQCX�G'i��i� Heailh Dept.Per No.
Rated by: ism ri�_J ldL _Telephone: /�-S �1 Date:
Reviewed b : Health De hone t. Tale :
Rev y p p
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone:
Check Classification(s): Subsurface Spray Irrigation Land Application
Wastewater Classification. (Circle One) 1 11 III IV Total Points:
TN-PLAI PROCESSES AND RELATED CONTROL EQUIPMENT WHICH ARE AN NTEGRAL PART OF INDUSTRIAL PRODUCTION SHALL
NOT BE CONSIDERED WASTE TREATMENT FOR THE PURP05EOFCLASSIFICATION ALSO SEPTIC TANK SYSTEMSOON,SISr1NG
SUBSURFACE CLASS FICATION
(check all units that apply)
1. septic tanks
2. pump tanks
3, siphon or pump -dosing systems
4. sand fillers
5, grease trap/interceptor
6. oil/water separators
7. gravity subsurface treatment and disposal:
S. pressure subsurface treatment and disposal:
SPRAY IRRIGATION CLASSIFICATION
(check all units that apply)
1. preliminary treatment (definition no. 32 )
2. lagoons
3. septic tanks
4. pump tanks
5, pumps
6. sand filters
7. grease Iraprinlerceplor
8. olllwaler separators
9. disinfection
10. chemical addition for nutrient/algae control
11, spray irrigation of wastewater
In addition to the above classif€cations, 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.
SAND APPLICATIONIRESIDUALS CLASSIFICATION (Applies only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
-------------------------------------------------------------
WASTEWATER TREATMENT FACILFY CLASSIFICATION
The following systems shall be assigned a Class I classification, unless the flow is of a significant quantity or the lechnology is
unusually complex, to require consideration by the Commission on a case -by -case basis: (Check it Appropriate)
1- OiI/water Separalor Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Filler Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary Irealmenl, lagoons, pumps, disinfection, necessary chemical
treatment for algae or nutrient control, and direct discharge;
4.losed-loop Recycle Systems;
5. Groundwater Remediallon Systems consisting pnly offpumps, air -stripping, carbon adsorption, disinfection and
disposal; 0. /'1-�4/u G 4)
6, Aquacullure operations with discharge to surface waters:
7- Water Plant sludge handling and back -wash water Irealme;r,%
8. Seafood processing consisting of screening and disposal,
g. Single-family discharging systems, with the exception of Aerobic Treatment Units, wilt be classified if permitted
al!er July 1, 1993 or i1 upon inspection by the Division, it is found Ihm the system is not being adequately operated
or ainlained. Such systems will be notified of the classification or reclassification by the Commission, in writing.
��th✓=L1:5 rf � 5�'r�L �,. fRft? Irr STRt€, ..r _ C•`iRFSC'ti/

- frEM I?OiNTS
{ 1 } Industrlal Pretreatment Units or Industrial Pretreatment Program (see definition No. 33)...................................................4
(2) DESIGN
FLOW OF PLANT IN gpd (not applicable to non -contaminated cooling watcrar$ivdge handling
facilities
for water purification plants, totally closed cycle sysloms(see definition No. 11), and facilities
consisting only of flem (4)(d) or Items (4)(d) and (11)(d))
..
0 - 20.000...................................................................................... .................... .. ............................1
20,001 - 50.................................................................. ......... ............................... _................... 2
50.001 - 100,000................... ................ ......... .............. .......................................... ....................... ..3
100.0D 1 250.00 ............................................................................................................................4
250,001 - 500,000................................................................................................................ . .........5
500.0011 1.000. 000.............................................................................................................................a
1.000,001 - 2,000,DOO................................................................................................ .............. ......10
2.000,001 (and up) rate 1 point additional for each 200.000 gpd capacity up to a
maximumof .......................... ........ ............ .... ................. .30
Design Flow (gpd)
(3) PRELIMINARY UNITSrPROCESSES (see delirvtionNo.32)
(a)
Bar Screens.................................�..:.......................... ».......................... ........... .................................... 1
or
(b)
Mechanical Screens, Static Screens or Comminuting Devices........................._.„._........................................2
(c)
Grit Removal..............................................................................................................................................1
or
(d)
Mechanical or Aerated Grit Removal.............................................................................................................2
(0)
Flow Measuring Device ................................................. ................................................................. ............ 1
or
(1)
Instrumented Flow Measurement ........................ ............................................................................. _......... 2
(g)
Preaeralion................................................................................................................................2
(h)
Influent Flaw Equalization............... ..........................................................................................................2
0)
Grease or Oil Separators - Gravity .»........... ............................................ ...... ................................. ..,..,,.2
Mechanical.................................................................................................................................................3
DissolvedAir Rotation .............. ......... »....................................................................................................... a
{)}
Prechiorinalion......... ....................................... ...... ..................................................................................
(4) PRIMARY TREATMENT LxiFTS/PROCESSES
(a)
Septic Tank (see definition No. 43)............................................................................................................2
(b)
Imhoff Tank. ........................... . ...................... .................................... . .................................................. 5
(c)
Primary Ctaritiers......................................... .................. ................... .5
(d)
Settling 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 TREATMENTUNf&PROCESSES
(a)
Carbonaceous Stage
(i} Aeration -High Purity Oxygen System..............................................................................20
DiffusedAir System.......................................................................................................10
Mechanical Air System (lixed, floating or rolor).......... .............................. ............... ....._...B
Separate Sludge Rsaeration.............................................................................................3
00 Trickling Filter
HighRate.......................................................................................................................7
StandardRate................................................................................................................5
Packed Tower .................... :...................... ................................................. I....................
(iil} Biological Aerated Filter or Aerated
Biological Finer.............................................................................................................10
{!v) Aerated Lagoons ................................ ,......................................................................... 10
(v) Rotating Biological Contactors .......... .......... _''.............................................................10
(vi) Sand Fillers -intermittent biological...................................................................................2
Recirculating biological.....................................................................................................3
(vii) Slabitizat'son Lagoons........................................................................................I............5
(vii!) Clarifier ...........................................................................................................................5
(ix) Single stage system for combined carbonaceous removal of SOD and nirogenous
removal by nkrilicalion (sea de!inition No. 12)(Points for this item have to be in
addition to Items {5)(a)(i) through
utilizing the extended aeration process (see definition No.3a)...........................................2
utilizing other than the aslended aeration process..........................................................._8
(x) Nutrient additions to enhance BOO removal......................................................................5
(xi) Biological Culture ('Super Bugs')additinn........................................................................5
(b)
Nitrogenous Stage
0) Aeration - High Purity Oxygen System.............................................................................20
Diffused Air System.......................................................................................................10
Mechanical Air Syslen (fired, floating or rotor)..................................................................a
Separate Sludge Roaeration.............................................................................................3
(ii) Trickling Filter -High Rate...................................................................................................7
StandardRate....................................................................................................I.........5
PackedTower.................................................................................................................6
Biclogicaf Aerated Filter or Aerated Biological Filter .................
(iv) Rotating Biological Contatlors......................................................................................1 D
{v} Sand Filler - intermittent bio!ogical...................................................................................2
Recirculatingbiological.....................................................................................................3
{vi) Ctarili3r...........................................................................................................................5
(6) TEATIARYORADVANCED TREATMENTUNrrSrPROCESSES
(a)
Activated Carbon Beds -
wilhovl tarpon regeneralian.............................'......................................................................5
withcarbon ragenotation................................................. .................. ............ ......................15
(b)
Powdored or Granular Ac;ivaiad Carbon Feed-
w0iout carbon togenoration........................... ............ _........................................................5
with carbon regoneration....................................................................................................15
(c)
Air stripping ..................... ......5
d
DOnilr::iCallOn PfUCOSS ......-.. _,_
r......................................... 10
(oi
Eteclrodialysis.........................................................................................................................................5
(ll
Foam Separation.......................................................................... ........ ................. .........................5

.. ............................I.....................I......5
•
(J)
Phosphorous Removal by Biological Processes (Sae definition No. 26).........................................................2() r
'
(k)
Pol7&hing Ponds - without aeration ................
withaerallon............ .... ........................»........................................�........_...........5
(1)
Post Aeration . cascade ................................ ... ...................................................................................................0
diffusedor mechanical .................................................. I ............ 11... I ........ . ... ........ ...2
(m)
Reverse Osmosis ................................... ........:....... .-.._................ .... ............................. ......... ......... . .5
(n)
Sand or Mixed -Media Filters - flow rate..............................I............. ..................„„..._.......... ........... _.... 2
highrate.....................................................................5
(o)
Treatment processes for removal of metal or cyanide ............. ...................................................................... i 5
(p)
treatment processes for removal of toxic materials other than metal or cyanide...... ................ ...»........._.15
(7)
SLIIDGETREATMENT
(a)
Sludge Digestion Tank Heated (anaerobic) ...... .............. .................................................................. 1 0
Aerobic........... ..............................................................................................................................5
Unheated (anaerobic). ......................................................................................................3
(b)
Sludge Stabilization (chemical or lhermal)...................................................................................................5
(c)
Sludge Drying Bads - Gravity......................................................................................................................2
VacuumAssisted .................. ................................................................................ ....... ...............................
(d)
Sludge Eluiriation......................................................................................................................................5
(a)
Sludge Conditioner (chemical orthermal).........................................................................................I..........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 Holding Tank - Aerated....................................................................................................................5
Notr aeral ed ........ .... ... .. .......................................................-._..._......._..........2
O)
Sludge Inctneralor (not Including activated carbon regeneration)................................................................10
(k)
Vacuum Filler, Centrifuge, or Filler Press or other similar dewatering devices.... »............._.... » ».»».. ...i 0
(8)
RESIDUALS UTILIZATION1DlSPOSAL (Including Incinerated ash)
(a)
Lagoons.. ....... .. ... .........................................................................2
(b)
Land Application (surface and subsurface) (see delinitlon 22a)
by contracting to a land application operator or landfill operator who holds the land
application permit or landfill permit".............................................................................................................2
(c)
Dedicated Landfill(bvrial) by the permittee, of the wastewater treatment facility ....... ................................... 5
(9)
D_gNF'cCTt__N
(a)
Chlorination.........................—•-•---........._...._-.._-..................................._....................._...........................5
(b)
Dechlorination............................................................................................................................................5
(c)
Ozone......................................................................................................................................................6
(d)
Radiation. ... .. ...... .... ......... ...........................5
(10)
CHEMICAL
ADDITION SYSTEM(S) ( sae definition No, 9) (not applicable to chemical additions rated as Item
(3)(j),
(5)(a)(xl), (6)(a), (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 polnls each:'
List......
............. ................................................... ......................... ............... I ...................... 5
.......................................................................................................................I............5
................................................................................................................................... b
........................................................................................................................5
(1 1)
MISCELLANECUS UNITS'PROCESSES
(a)
Holding Ponds, Holding Tanks or Settling 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)
Eifluens Flow Egvalizalion (not applicable to storage basins which are Inherent in land application
systems)..................................................................................................................................................2
(c)
Stage Discharge (.sot applicable to storage basins Inherent in land application systems)..................................5
(d)
Pumps.............................. ........................................................................................................................ 3
(e)
Stand -By Power Supply.............................................................................................................................3
(1)
Thermal Pollution Control Device......................................._._.....,....-..........................__..-..........................3
TOTALPOINTS.................:...........................-..........-.................
CLASSIFICATION
ClassI., .............................. .................................................................I.........5-25 Points
Class11................................ ......... ................................................................ 26-50 Points
ClassIII........................................................................................................51.85 Points
ClassTV .......................................................................................................66-Up Points
----------------------------------------------------
Facilities having a rating of one through lour points, inclusive, do not require a certified operator.
i=ac)fities having an activated sludge process will be assigned a minimum classification of Class If.
FnIl ities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class it.
Faegilies having Irealmanl processes for the biological removal of phosphorus will be assigned a minimum classification of Class Ill,
A004 DEFINITIONS
The loflowirq daliritions shall apply dvoughouf tNs Subchapter- -
(1) Activaled Carbon Sods. A physicalrchomicaf method go: reducing solskti organic malaria) horn wastowslor eflluont; Tho colurrmlype bads used in tHs mothod will have
At flow rate varying from two to oighl gallons par rrrnute por squsr: loot and may bo either uphow or downlow carbons beds. Carbon may or may not be legeneralad on Use
4r491ewHor lraalmoni plant Zito.
(2) Aerated Lagoons. A basin in which all sorids are maintained in suspwaion and by which biological oxidation or organic matter is reduced Olrough art;kislty accolaraled
Iranslar of oxygen on a Aaw•through basis;
(3) A WIlion, A process of bringing abotn intimale conlacl between air or high purify oxygen In a liquid by spraying• agitation or ditivsionX3a) Extended Aeration_ An
■c61•alad srvdge process utilizing a rsi6mm hydraulic detention lime of 18 hos,rs.
(4) Agricuhrxally managad site. Any Gila on which i crop is prodmed, managed, and harveslad (Crop includes grasses, grains• trees, etc-};
(5) Air Stripping, A process by which the ammonium ion Is Arst ca-tverled to drssdved ammonia (pH acjvslmant) with Vie arrratoria Mn selassod to the atmosphere by
physical means; or other sirrOor procossos w`:th renwvu pot"da.m prodv•ts svch as benxena, tdueno, and xylene;
(6) Carbon Regonoration. The regenoraLaa of exhausted ea:ben b the use of a Itxnaee to provide awomely high lompelaluras which vdadGzu and oxidize t:v r.ascxbad
irop.
(r) sinus Stage. A stage of waslowarer troatmunt e4si;nad to scRavo -soconduy- oleueni limits-
1t) t- '9_ A mocf.anical deaice in whch contrilvgal face is :sod to srparaio solids from licyids or to st•paialo liquds of dillatenl donsiius:
49J ChemiCal Adtilion Sy Sterns" T!:e addition of c),umical(s) to :rate: a: an applicatic'n point for ptxposo, of ;mprovins solids romovai. pri adjvxo*m, ..,. --fy crrnlrol,
etc.- lrw capbWily 10 uxpaArsarst won ddlu—m ctwnicafs and ' a•aa: a;r,=•canon punts to achiovn a spocihc reswl wit( bo conswarod one srslo!n; 1ha capaWtity to add