WQ0002503_Final Permit_19940616

�-�ate 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
June 16, 1994
Darrell B. Matthews, General Manager
Frit Car and Equipment Company
P.O. Box 569
Bridgeton, NC 28519
Dear Mr. Matthews:
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Subject: Permit No. WQ0002503
Frit Car and Equipment Company
Wastewater Spray Irrigation and
Recycle Facilities
Craven County
In accordance with your renewal request received March 30, 1994, we are forwarding herewith
Permit No. WQ0002503, dated June 16, 1994, to Frit Car and Equipment Company for the continued
operation of the subject spray irrigation facility and the construction and operation of the subject recycle
system. Please note and properly execute the required modifications listed under Section I.7 of the
attached permit.
This permit shall be effective from the date of issuance until May 31, 1999, shall void Permit No.
WQ0002503 issued November 9, 1993, 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 the
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 Mrr Cox'at` (9 '9) 733-5083.
Sincerely, nn
A. Pre t n Howard, Jr., P.E.
cc: Craven County Health Department
Washington Regional Office, Water Quality
Washington Regional Office, Groundwater
Groundwater Section, Jack Floyd
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
Ar. Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SPRAY IRRIGATION 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
Frit Car and Equipment Company
Craven County
FOR THE
construction and operation of a 7,200 GPD recycle system consisting of a 15 GPM high pressure hydra
blast, a service pump, a supply tank, a static screen and a solids storage area. Permission is also granted
for the continued operation of a 867 GPD spray irrigation treatment and disposal facility (with an
additional 173 GPD available upon modification of the spray field) consisting of a 1,900 gallon sump with
oil shimming system, a 50 GPM sump pump, a 1,100 gallon clarifier with mechanical agitation, chemical
addition and pH monitor, two (2) fifty (50) ft2 sludge drying beds, a 6,000 gallon septic tank with a 35
GPM pump, a 45,000 gallon aerated storage tank with 115 GPM pumps and a 1.33 acre land application
spray field to serve Frit Car and Equipment Company, with no discharge of wastes to the surface waters,
pursuant to the renewal request received March 30, 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 May 31, 1999, shall void Permit No.
WQ0002503 issued November 9, 1993, and shall be subject to the following specified conditions and
limitations.
I. PERFORMANCE STANDARDS
1. Upon completion of construction and prior to operation of the recycle 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.
2. The Washington Regional Office, telephone number 919/946-6481, 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. The spray irrigation facilities shall be effectively maintained and operated at all times so
there is no discharge to the surface waters, nor any contamination of ground waters wl
will render them unsatisfactory for normal use. In the event that the facilities fai
perform satisfactorily, including the creation of nuisance conditions or failure of
irrigation area to adequately assimilate the wastewater, the Permittee shall take immed
corrective actions including those actions that may be required by the Divisior
Environmental Management, such as the construction of additional or replacerr
wastewater treatment and disposal facilities.
4. The issuance of this permit shall not relieve the Permittee of the responsibility for damn
to surface or groundwaters resulting from the operation of this facility.
5. The residuals generated from these treatment facilities must be disposed in accordance i
General Statute 143-215.1 and in a manner approved by the North Carolina Divisioi
Environmental Management.
6. Diversion or bypassing of the untreated wastewater from the treatment facilitie
prohibited.
7. The following buffers shall be maintained:
a) 400 feet between wetted area and any residence or places of public assembly u
separate ownership,*
b) 150 feet between wetted area and property lines,*
c) 100 feet between wetted area and wells,
d) 100 feet between wetted area and drainage ways or surface water bodies,
e) 50 feet between wetted area and public right of ways,
f) 100 feet between wastewater treatment units and wells, and
g) 50 feet between wastewater treatment units and property lines.
Some of the buffers specified above may not have been included in previous perm
this waste treatment and disposal system. These buffers are not intended to proh
prevent modifications, which are required by the Division, to improve performance
existing treatment facility. These buffers do, however, apply to modifications
treatment and disposal facilities which are for the purpose of increasing the flow
tributary to the facility. These buffers do apply to any expansion or modification
spray irrigation areas and apply in instances in which the sale of property would cat
of the buffers now complied with, for the treatment and disposal facilities, to be V
The applicant is advised that any modifications to the existing facilities will require
modification.
*Note: Within 90 days of issuance of this permit, the southeastern border of the spray fie
C
be brought into substantial compliance with buffer requirements a and b, abovc
r " 1
following manner: spray heads 5, 6, 7 and 8 shall be removed, and shall replai
"
heads 11, 15, 21 and 28 to allow only 180 degrees of rotation (toward the spray f
I
those heads; the lines formerly connecting to spray heads 5, 6, 7 and 8 shall
p
capped. The spray capacity will thereby be reduced from 1,040 GPD to approxim.
L
GPD. If at any time the additional 173 GPD of the original spray capacity are nee
a modification to the spray facility is desired, the spray field shall requir
modification to be in complete compliance with the buffers (a through g) outlin(
The current modification provides a buffer of a 100 feet from the southeaste
perimeter of the spray field to the property line, and >_ 350 feet to the nearest i
The vegetative buffer along the southeastern border of the spray field shall be mai
be at least as heavy as it was at the time of inspection (approximately 20-30 fee
approximately 80 feet deep). When the modification outlined above has been c
the Permittee shall contact the Washington Regional Office, telephone numbe•
6a91, to schedule a follow-up inspection of the facilities.
2

II. OPERATION AND MAINTENANCE REQ111REMENTS
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 mold 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.
3. A suitable vegetative cover shall be maintained.
4. Irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff.
5. Adequate measures shall be taken to prevent wastewater runoff from the spray field.
6. 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.
7. The average annual weekly application rate shall not exceed 0.14 inches/acre.
8. No type of wastewater other than that from Frit Car and Equipment Company shall be
sprayed onto the irrigation area.
9. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
10. Public access to the land application sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each
site.
11. Sprayed wastewater pH shall be maintained between 7.5 and 8.5 s.u.
12. The spray irrigation facilities shall only be used for occasional blowdown of clean filtered
water through the existing treatment system.
III. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (including groundwater, surface water, soil or plant tissue analyses)
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.
3

2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater
disposed. These records shall include, but are not necessarily limited to, the following
information:
a) date of irrigation,
b) volume of wastewater irrigated,
c) field irrigated,
d) length of time field is irrigated,
e) continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each
field,
f) weather conditions, and
g) maintenance of cover crops.
3. The Permittee shall submit a monthly report of the size, type, and number of cars cleaned
per month and the date each car was cleaned.
4. The effluent from the subject facilities shall be monitored monthly for the following
parameters by grab samples taken from the 45,000 gallon holding tank: Ammonia, BOD,
Chloride, Sodium, Phenols, Phosphate, Sulfate, TOC and TSS.
5. The effluent shall be monitored quarterly for the following parameters by grab samples
taken from the 45,000 gallon holding tank: Total Chromium, Copper, Nickel, Lead, Zinc
and Cadmium.
6. Three copies of all operation and disposal records (as specified in conditions 1II 2 and
111.3), and all effluent monitoring data (as specified in conditions 1114 and 111.5) and any
other data as may be required shall be submitted on or before the last day of the following
month to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
7. Noncompliance Notification:
The Permittee shall report by telephone to the Washington Regional Office, telephone
number 919/946-6481, 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 sludge digester, 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 has gone out of
compliance with its permit limitations.
4

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 REQUIREMENTS
Monitor wells MW-1, 2, 3, and 4 (as indicated on the attached site map) shall continue to
be sampled every March, July, and November for the following parameters:
NO3
Ammonia Nitrogen
TOC
pH
Chloride
Water Levels
Total Suspended Solids
Total Dissolved Solids
Copper
COD
Nickel
Lead
Chromium
Iron
Sulfate
Volatile Organic Compounds - In November only (by Method 1 or 2 below)
Method 1: Method 6230D (Capillary - Column), "Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989
Method 2: Method 502.2 "Methods For The Determination Of Organic Compounds
In Drinking Water", U.S. EPA-600/4-88/039
2. The measurement of water levels must be made prior to sampling for the remaining
parameters. The depth to water in each well shall be measured from the surveyed point on
the top of the casing.
3. 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 analyses specified in the monitoring requirements,
including 604 and 611 if required, must be submitted simultaneously.
4. The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29535 Raleigh, N.C. 27626-0535 on Form GW-59
[Compliance Monitoring Report Form] every April, August, and December.
5. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
6. The COMPLIANCE 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.
5

7. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled map (scale no greater than 1":100') signed and sealed by a state
licensed land surveyor that indicates all of the following information:
a. the location and identity of each monitoring well,
b. the location of all components of the waste disposal system,
c. the location of all property boundaries,
d. the latitude and longitude of the established horizontal control monument,
e. the relative elevation of the top of the well casing (which shall be known as the
"measuring point"), and
f. the depth of water below the measuring point at the time the measuring point is
established.
The survey shall be conducted using approved practices outlined in North Carolina General
Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56.
The surveyor shall establish a horizontal control monument on the property of the waste
disposal system and determine the latitude and longitude of this horizontal control
monument to a horizontal positional accuracy of +/- above shall be surveyed relative to this
horizontal control monument. The positional accuracy of features listed in a. through e.
above shall have a ratio of precision not to exceed an error of closure of 1 foot per 10,000
feet of perimeter of the survey. Any features located by the radial method will be located
from a minimum of two points. Horizontal control monument shall be installed in such a
manner and made of such materials that the monument will not be destroyed due to
activities that may take place on the property. The map shall also be surveyed using the
North American Datum of 1983 coordinate system and shall indicate the datum on the map.
All bearings or azimuths shall be based on either the true or NAD 83 grid meridian. If a
Global Positioning System (GPS) is used to determine the latitude and longitude of the
horizontal control monument, a GPS receiver that has the capability to perform differential
GPS shall be used and all data collected by the GPS receiver will be differentially
corrected.
The maps and any supporting documentation shall be sent to the Groundwater Section,
N.C. Division of Environmental Management P.O. Box 29535 Raleigh, N.C. 27626-
0535.
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 wastewater treatment 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 beep 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 upon request to
the Division of Environmental Management or other permitting authority.
3. 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 or facility 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.
C1

VI. GENERAL CONDITIONS
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. 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 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 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.
6. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of the project.
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 15A NCAC 2H .0205
(c)(4)-
8. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
9. The subject wastewater treatment and disposal facilities shall be connected to an operational
publicly owned wastewater collection system within 180 days of its availability to the
subject facilities, if the subject wastewater treatment or disposal facilities are in
noncompliance with the terms and conditions of this non -discharge permit or the governing
statutes or regulations. Prior to the initiation of these connection activities, appropriate
approval must be received from this Division.
10. All Ammonia and LPG cars shall be flared and air washed with the vapors passing through
equipment with a temperature controlled, modulation flame to maintain combustion
temperatures.
11. This permit shall be voidable in the event the Permittee cleans rail cars with other than
LPG, Ammonia, Caustic Soda, and Acid (Sulfuric, Hydrochloric and Phosphoric),
specifically, herbicide and pesticide rail cars.
7

Permit issued this the 16th day of June, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
—0 aj,54 ---%- (.o . qylq, OLx-"
A. Preston 4ward, Jr., P.E ,Director
Division of Ehvironmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0002503

Permit No. WQ0002503
June 16, 1994
ENGINEER'S CERTIELCATION
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
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
Registration No.
9

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BRIDGETON, N.C.
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3tion and Topographic Map
Scale: Approximate 1" = 2000'
Taken from Askin, N.C, Quadrangle,
7,5 minute series (Topographic),
Photo date 1978 by U. S, Department of
the Interior Geological Survey,

ITEM
(1 )
(2)
M
Narrle of PIant:T� 1 J
Owner or Conta Pers=':
Mailing Address:
County:r�G4 Teiephone:ct
NPDES Permit No. NCO Nondi,sc. Per- No.K{CQ=��
lssueDate: -C Expiration Dater -
Existing Facility_ T New Facility
Rated By: A e Date: -4
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. & Cert.) Central Office
ORC Grade
Plant Class: (circle one) I (:I:L Ill IV Total Points
POINTS
lndusiriaf Pretreatment Units and/or
Industrial Pretreatment Program
(see definition No. 33)
4
Fj 7 INN FLOW OP PLANT IN GPp
(not applicable to non -contaminated cooling waters, sludge
handling facilities for water purilication plants, totally
closed cycle systems (del. No. 11), and facilities
consisting only of Item (4) (d) or Items (4) (d) and (11)
(d
0 - 20,000..........................
1
20,001 •- 50,000.
1
50,001 — 100,000..........................
3
100,001 250,00D..........................
4
250,001 -- 500,000 ...................... . ...
5
500,001--1,000,000..........................
B
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
maximum I 0
Design Flow (gpd)
PRELIMINARY UNITS (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 Aerated Grit Removal ...........
2
(e) Flow Measuring Device ........................
1
or
(l) Instrumented Flow Measurement ..............
2
(g) Preaeration................................
2
(h) Influent Flow -Equalization ................... 2
(i) Grease or Oil Separators - Gravity ..........
Mechanical .......... 3
Dissolved Air Flotation. B
6) Prechloriinalion .............................. 5
(4) PRIMARY TREATMENT UNITS
(a) Septic Tank (see definition no. 43) .............. `�.
(b) Imhoff Tank ................................... 4
(c) Primary Clarifiers ............................ 5
(d) Settling Ponds or Seltling Tanks for Inorganic
Nontoxic Materials {sludge handling facilities
for water purification plants, sand, gravel,
stone, and other mining operations excepl
recrealional activities such as gem or gold
mining)........... ........................... 2
(5) SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage
(i)Aeralion - High Purity Oxygen System .... .
Diffused Air System .......... .
Mechanical Air System (fixed,
fioating or rotor) ............ . .
Separate Sludge Reaeralion .... -
(ii) Trickling Filter
High Rate ...................
Standard Rate ...............
Packed Tower ...............
(iii) Biological Aerated Filter or Aerated
Siolooical Filter ......................
(iv) Aerated lagoons ..................... .
(v) Rotating Biological Conlactors ..........
(vf) Sand Filters-
inlernillenl biological .... .
recirculating biological .... .
(vn) S;abiftalion Lagoons ...................
(viii)Clarifier ..............................
(ix) Single stage system for combined
carbonaceous removal of BOD and
nitrogenous removal by nitrification
(see del. No. 12) (Paints for this item
have to be in addition to items (5) (a)
O through (5) (a) (viri) ..................
(x) Nutrient additions to enhance BOD
femoval...............................
(xi) Biological Culture ('Super Bugs') addition
to enhance organic compound removal .... .
(b) Nitrogenous Stage
(i) Aeration - High Purity Oxygen System .... .
Diffused Air System ...........
Mechanical Air System (fixed,
floating, or rotor)...... ......
Separate Sludge Reaeration
(ii) Trickling Filter -
' High Rate . . .............
Standard Rate ........... _
Packed Tower .............
(iii) Biological Aerated Filter or Aerated'
Biological Filter ........................ .
(iv) Rotating Biological Conlaclors .......... .
(v) Sand Filter -
intermittent biological ....... .
recircu'afing biological . _ ..... .
(vi) Clarifier ................................

01 TERTIARY OR kLIvANct=D TREATMENT IJIMT
(a) AC
livated Carbons Beds -
w�ihout carbon regeneration .. _ ........... ! . _ . 5
with carbon regeneration . . .. . . ........... . .. is
(b) Powdered or Granular Activated Carbon Feed -
withoul carbon regeneration ... _ ... 5
with carbon regeneration .. _......... . . . . . . . 15
c) Air Stripping ................ _ ... _ . _ . - .. 5
(d) Denitrilicalion Process (separate process) .. _ , . 1 0
(e) Eleclrodialysis ........ _ . .. . ............... . 5
(f) Foam Separation ...... . . . . . .. . ............. 5
(g) ton Exchange ................................ 5
(h) Land Application of Treated Effluent
(see definition no. 22b) (nol applicable for
sand, gravel, stone and other similar mining
operations)
(i) on agriculturally managed siles (See del.
No.4)•--................................ 1 D
(ii) by high rate infiltration on non-agricultura
managed siles (includes rotary distributors
and similar fixed nozzle systems) ........... 4
(iii) by subsurface disposal (includes low pressure
pipe systems and gravity systems except at
plants consisting of septic tank and nilrifica-
tion lines only) ............................. 4
(i) microscreens ........ . .. . ...................... 5
(j) Phosphorus Aemoval by Biological Processes
(See del. No. 28) ............................ 20
(k) Polishing Ponds - without aeration ... _ .. .
with aeration ..........
(I) Post Aeration - cascade 0
diffused or mechanical ... 5
(m) Reverse Osmosis ........................... . ... 5
(n) Sand or Mixed -Media Fillers - low rate ........... _2
high rate .. _ ....... 5
(o) Treatment processes lot removal of metal or
cyanide............... ..................... 15
ro) Treatment processes for removal of toxic
materials other than metal or cyanide ......... 1 5
S,uDGE TREATMENT
(a) Sludge Digestion Tank - Healed ........ . . . . . . . 1 0
Aerobic.. .. .. .. . ...... 5
Unhealed ...... ....... 3
(b) Sludge Stabilization (chemical or thermal) ... .. _ 5
(c) Sludge Drying Beds - Gravity .......... .. . 2
Vacuum Assisted . _ ..... 5
(d) Sludge 17101alion ... . . ................. . ...... 5
(e) Sludge Conditioner (chemical or thermal) ........ 5
(1) Sfudge Thickener (gravity) ...................... 5
(gl Dissolved Air Flotation Unit
(not applicable to a unit rates as (3) (i) ......... 8
(h) Sfudge Gas Utilization (including gas storage) _ ... 2
(i) Sludge Holding Tank - Aerated ................ 5
Non -aerated ............ 2
Sludge incinerator - (not including activated
carbon regeneration) .. _ .. 10
(k) Vacuum Filler, Centrifuge or Filler Press or other
similar dewalering devices .............. . ..... 10
,S) SLUDGE DISPOSAL (including incineraled ash)
(a) Lagoons ........................................ 2
(b) Land Application (surface and subsurface)
(see definition 22a)
-where the facility holds the land app. permit .. 10
-by contracting to a land application operator who
holds the land application permit ................ 2
-land application of sludge by a contractor who does
not hold the permil for the wastewater treatment
facility where the sludge is generated ......... 10
(c) Landfilled (burial} ..... - - - . - - - ............ 5
(-, DISINFECTION
(a) Chlorination .. . ... . ................. ..... 5
(b) Dechtorinalion ........................ 5
(c) Ozone ... 5
(d) P.adiation .. ' . . . . ................... 5
(10) -CHEMICAL ADDITION SYSTEM (S) (See No. s)
(not'app€€cable to chemical additions rated as item
(3) (j),-(5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e),
PUN, M) (b), or 9 c) 5 points each: List: r
(11) MISCELLANEOUS UNITS
(a)
Holding Ponds, Holding Tanks or Settling Ponds
for Organic or Toxic Materials including wastes
from mining operations containing nitrogen and/or
phosphorous compounds in amounts significantly
greater than is common for domestic wastewater .........
(b)
Effluent Flow Equalization (not applicable to storage
basins which are inherent in land application systems)
(c)
Stage Discharge (not applicable to storage basins
inherent in land application systems.....................................�
(d)
Pumps._..-_. ................. T__. _..._ ..._...__ ....._ .-........__
(e)
Stand -By Power Supply ................... ........ ................... ....... ___.
(f)
Thermal Poflulion Conlml Device .............................................
TOTAL POINTS Za
CLASSIFICATION
Class I ........ ................................. .._. ..... 5 - 25 Points
Class 11............................... ._ _ _._ 26- 50 Points
Class Ill ................................... ................ _.. 51- 65 Points
Class IV_ .............................................. __.- 66- Up Points
Facilities having a rating of one through four points, inclusive,
do not require a certified operator. Classification of all other
facilities requires a comparable grade operator in responsible
charge.
Facilities having an activated sludge process will be assigned
a minimum classification of Class 11.
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 classification of Class
Ill.
In -plant processes and related control equipment which are an
integral part of industrial production shall not be considered waste
treatment. Likewise, discharges of wastewater from residences
having a design flow of 1,000 gpd or less, shall not be subject to
rating.
ADDITIONAL COMMENTS,

(1)Activated Carbon Beds, A physical/chemical method lot reducing soluble organic maleriaf from wastewater
elOuenl; the column -type beds used in this method will have a flow rate varying from Iwo to eight gallons per
minute pet square fool and may be either upflow or downllow carbon beds. Carbon may or may not be
regenerated on the waslewi�ler treatment plant site.
(2)Aerated Lagoons. A basin in which all solids are maintained in'suspension and by which biological oxidation or
organic matter is reduced through artificially accelerated transfer of oxygen on a flow•lhrough basis;
(3)Aeralion. A process of bringing about intimate contact between air or high purity oxygen in a liquid by
spraying, agitation diffusion;
(4)Agriculturally managed site. Any site on which'a crop is produced, managed, and hirvesled (Crop includes
grasses, grains, trees, etc);
(5)Air Stripping. A process by which the ammonium ion is first converted to dissolved ammonia (pH adjustment)
with the ammonia then released to the atmosphere by physical means; or other similar processes which remove
petroleum products such as benzene, toluene, and xylene.
(G)Carbon Regeneration. The regeneration or exhausted carbon by the use of a lumace to provide extremely high
temperatures which volatilize and oxidize the absorbed 'Impurities;
(7)Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits,
18)Centrifuge. A mechanical device in which centrifugal force Is used to separate solids from liquids and/or to
separate liquids of different densities;
19)Ghemiczt Addition Systems - The addition of chemical (s) to wastewater a1 an application point for purposes of
improving solids removal, pH adjustment, alkalinity control, etc.; the capability to experiment with different
chemicals and different application points to achieve a specific result will be considered one system; the
capability to add chemical (s) to dual units will be rated as one system; capability to add a chemical at difference
application points for different purposes will result in the systems being rate as separate system.
(ID)Chemical Sludge Conditioning. The addition of a chemical compound such as lime, larric chloride, or a
polymer to wet sludge to coalesce the mass prior to its application to a dewalering device;
(I1)CIDsed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing
inotganic, non•lcxic materials from sand, gravel, crushed stone or other similar operations, from which there is
no discharge to the surface waters; such systems shall carry a maximum of two points regardless of pumping
lacilities or any other appurtenances;
(12)Combined Removal of Carbonaceous SOD and Nitrogenous Removal by Nitrificalion - A single stage system
-designed- to achieve 'advanced' permil effluent limits on SOD and ammonia nitrogen within the same biological
reactor.
(13)De•chloiinaiion. The partial or complete reduction of residual chlorine in a liquid by any chemical or physical
process;
(14)0enilrirication Process. The conversion of nilrate•nilrogen to nitrogen gas;
(15)Electrodialysis. Process for removing ionized salts from water through the use of ion -selective ion -
exchange membranes:
(16)Filler Press, A process operated mechanically for partially dewalering sludge;
(17)Foam Separation. The planned frothing of wastewater or wastewater elfluent as a means of removing
excessive amounts of detergent materials through the introduction of air in the form of fine bubbles; also called
loam fraclionalion;
(18)Grit Removal. The process of removing grit and other heavy mineral Mader from wastewater;
(19)lmhoff Tank. A deep two story waslewaier lank consisting or an upper sedimentation chamber and a lower
sludge digestion chamber;
(20)Inslrumenled Flow Measurement. A device which indicates and/or records rate of flow;
(21)lon Exchange. A chemical process in which ions from two different molecules are exchanged;
(22)Land application: (a) Sludge Disposal. A final sludge disposal method by which sludge may be applied to land
either by spraying on the surface or by subsurface injection (i.e., chisel plow). [not
appiicaole for types or sludge described in (11) of this Rulej; (b)Trealed Effluent. The process of spraying
treated wastewater onto a land area or other methods of application of wastewater onto a land area as a means
of finzt disposal and/or treatment;
(23)Microscreen. A low speed, continuously back -washed, totaling drum filler operating under gravity
conditions as a polishing method removing suspended solids from effluent;
(24)Nitr1rica1ion Process. The biochemical conversion of unoxidized nitrogen (ammonia and organic nitrogen) to
oxidized nitrogen (usually nitrate);
(25)Nilrogenous Stage. A separate stage of wastewater treatment designed for the specific purpose of
converting ammonia nitrogen to nitrate nitrogen;
(26)Phosphals Removal 6iologic2l. The removal of phosphorus from wastewater by an oxic/anoxic process
designed to enhance luxury uptake of phosphorus by the microorganisms;
(27)Poiishing Pond. A holding pond following secondary treatment with sufficient detention to allow for the
sealing of Finely suspended solids; _.
(28)Post Aeration. Aeration following conventional secondary treatment units to increase effluent D.O. or lot
any other purpose;
{29)Post Aeration, (Cascade) A polishing method by which dissolved oxygen is added to the effluent by'
nonmechanical, gravity means of flowing down a series of steps or wears; The flow occurring across the steps or
weirs moves in a fairly thin layer and the operation of the cascade requires no aperalor adjustment; thus, zero
points ara assigned even though this is an essenlial slap to meeting the limits of the discharge permit;
(3o)Pewdered or Granular Activated Carbon Feed: A biophysical carbon process that utilizes biological activity
-and organic absorplion by using powdered or granular activated carbon; Virgin and/or regenerated carbon is feed
—,'controlled info the sysam;
(31)Preaeration. A lank constructed to provide aeration prior to primary treatment:
(32)Preliminary Units. Unit operations in the treatment process, such as screening and comminution, that
prepare the liquor for subsequent major operations;
{33)Indvslrial Pretrealment: (a)Pre-Utalmeni Unit, Industrial. The condilioning of a waste at its source before
discharge, to remov3 or to neutralize substances injurious to sewers and treaimenl processes or to effect a
paniat reduction in load on a treatment process which is operated by the rime goveining body as the waslewalsr
t aiment planl bein,, ralad; (b)Pre•ire ?r-itent Program, lfidusirial - ,nusl bu a stale nr EPA i squired �grart it)
receive points on Ii,d . Wing sheet.

ranks Through which wastewater is passed in a Ireatment works for
rrw purpose of removing settleable and suspended solids and BOD which is associated with the solids;,
(35)Pumps. All inlfuent, effluent, and in -plan! pumps: '
(36)Fladialion. Disinfection ardlor slerlizalion process utilizing devices emitting ultraviolet or gamma rays;
(37)Reverse Osmosis. A treatment process in which a heavy contaminated liquid is pressurized through a
membrane farming nearly pure liquid free from suspended solids;
(38)Rolating Biological Canlaclors. A fixed biological growth process in which wastewater flows through tanks
In which a series of partially submerged circular surfaces are rotated;
(N)Sand Fillers:(a)Intermittent Biological. Filtration of effiuenl following septic tanks, lagoons, or some other
treatment process in which lurlher biodecomposition is expected to produce desired effluents; Hydraulic loading
rates on These filler$ are computed in gpdrac and have a resulting low gpm/sf (less than one); (b)Recirculaling
biological - the same type of sand filter as `.=.:ned in (a) with the added capability to recycle effluent back
through the sand filler;
(40)Sand or Mixed -Media Fillers. A polishing process by which effluent limits are achieved through a further
reduction of suspended solids:(a)low rate -- gravity, hydraulically loaded filler with loading tales in the one to
three gpm/sf range;(b)high rate -- a press hydraulically loaded filter with loading rates in the five gpm/s1
range; Al any rate, the loading rate will exceed three gpmisf;
(41)Secondary Clarifiers. A tank which follows the biological unit of a treatment plant and which has the purpose
of removing sludge associated with the biological treatment units;
(42)Separals Sludge Reaermion. A parr of the contact stabilization process 'where the activated sludge is
transferred to a lank and aerated before returning It to the basin:
(43)Septic Tank. A single -story settling tank in which settled sludge is in conlact with the wastewater flowing
through the tank; shall not be applicable for septic lank systems serving single family residences having a
capacity of 2000 gallons or less which discharge to a nilrilicalion field;
(44)Sludge Digestion. The process by which organic or volatile mailer and sludge is gasified, liquefied,
mineralized or convened into more stable organic mallet through the activity of living organisms, which includes
aerated holding tanks;
(45)Sludge Drying Beds. An area comprising natural or artificial layers of porous materials upon which digested
sewage sludge is dried by drainage and evaporalion;
(46)Sludge Elulrialion. A process of sludge conditioning in which certain constituents are removed by successive
washings with fresh water or plant effluent;
(47)Sludge Gas Utilization. The process of using sewage gas for the purpose of heating buildings, driving engines,
etc.;
(48)Sludge Holding lank (Aerated and Nonaeraledj. A tank utilized for small wastewater treatment plants not
confaining a digester in which sludge may be kept fresh, and supernatant withdrawn prior to a drying method (i.e.
sludge drying beds); This may be done by adding a small amount of air simply to keep the sludge fresh, but not
necessarily an amount that would be required to achieve stabilization of organic matter. A nonaeraled lank would
simply be used to decant sludge prior to dewalering and would simply be used to decant sludge prior to
dewalering and would not allow long periods (several days of detention) without resulting odor problems;
(49)Siudge Incinerators_ A furnace designed to burn sludge and to remove all moisture and combus0ble materials
and reduce the sludge to a sterile ash;
(50)Sludge Stabilization (Chemical or Thermal). A process to make treated sludge less odorous and putrescrible,
and to reduce the pathogenic organism content; This may be done by pH adjustment chlorine dosing. or by heat
treatment;
(St)Sludge Thickener. A type of sedimentation lank in which the sludge is permitted to settle and thicken through
agitation and gravity;
(52)Stabiliz2lion Lagoon. A type of oxidation lagoon in which biological oxidation of organic matter is effected by
natutaf transfer of oxygen to the water from air (not a polishing pond);
(53)Stand-By Power Supply. On site or portable electrical generating equipment;
154) Sialic Screens. A stationary screen designed to remove solids including non -biodegradable particulate
(floatable solids, suspended solids and BOD reduction) from municipal and induslHal wastewater treatment
systems;
(55)Teriiary Treatment. A stage of treatment following secondary which is primarily for the purpose of effluent
poiishino; A settling lagoon or sand or coal filter might be employed for this purpose.
(56)7herma! Pollution Control Device. A device providing for the transfer of heal from a_ffuid flowing in tubes to
another fluid outside the tubes, or vice versa; or, other means of regulating
liquid temperatures;
(57)Thermal Sludge Conditioner, A conditioning process by which heal is added for a protracted period of time to
improve the dewalerability of sludge by the solubiliziag and Sydraulizing of the smaller and more highly hydrated
sludge particles;
(58)Toxic Materials. Those wastes or combinations of wastes including disease -causing agents which after
discharge and upon exposure, ingestion, inhalation or assimilation into any organism either directly from the
environment of indirectly by ingestion through food chains, will cause -death, disease, behavioral abnormalities,
cancer, genetic mutations, physiological malfunctions (including malfunctions in reproduction) or physical
deformzfions, in such organisms or their offspring; Toxic materials include, by way illustration and not
limitation: lead, cadmium, chromium, mercury, vanadium, arsenic, zinc, ortho-nilro-chlorebenzene (ONCE
polychlorinated biphenyls (PCBs) and dichlorodiphenyl Irichloroethane (DDT); and any other materials that have
or may hereafter be determined to have toxic properties;
(59)Trickling filler. A biological treatment unit consisting of material such as broken stone or rock over which
waslewaler_is distributed; A high rate trickling filler is one which is operated at between 10 and"3b mgd per
a,re_ A. low rats trickling filler is one which is designed to operate at one to four mgd per acre;
(60)Trickling Filler (Packed Tower). A plug flow type or operation in which wastewater flows down through
successive layers of media or filtrate naterial; Organic material is removed continually by active biological
fixed growth in each successive layer. Tiris method may produce -secondary' quality effluent, or may be
adapted to produce a nilrified eMuenl;
(6t)Vacuum Fillers, Centrifuges, or Filler Presses. Devices which are designed to remove excess water from
either digested or undigested sludge prior to disposal or further treatment.