WQ0004579_Final Permit_19910307

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor George T. EvereLL, Ph.D.
William W. Cobey, Jr., Secretary Director
March 7, 1991
Mr. C. Wood Beasley, III
Beasley Farms, Incorporated
Post Office Box 38
Colerain, North Carolina 27924
Subject: Permit No. WQ0004579
Beasley Farms, Incorporated
Colerain Site
Remediation of Contaminated Soils
on a Dedicated Site
Bertie County
Dear Mr. Beasley:
In accordance with your application received December 28, 1990, we are forwarding
herewith Permit No. WQ0004579, dated March 7, 1991, to Beasley Farms, Incorporated for the
operation of the subject Dedicated site contaminated soil remediation program.
This permit shall be effective from the date of issuance until February 28, 1996, and shall
be subject to the conditions and limitations as specified therein.
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 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.
A copy of the approved site plan is being forwarded to you. If you need additional
information concerning this matter, please contact Mr. Dana Bolden at 919/ 733-5083.
cc:
Bertie County Health Department
Washington Regional Office U
Groundwater Section
Training and Certification Unit
Applied Environmental Services, Inc.
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
CONTAMINATED SOILS DISPOSAL PERMIT
In accordance with the provisions of Article 21 of Chapter 1.43, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Beasley Farms, Incorporated
Bertie County
FOR THE
operation of a contaminated soils remediation system on a dedicated site consisting of the disposal
of petroleum contaminated soil on a 7.67 acre (including buffers) disposal area located on State
Road 1329 in Colerain, North Carolina with no discharge of wastes to the surface waters,
pursuant to the application reeeiveed December 28, 1990 and in conformity with the project plan,
specifications, and other suppor€ing data subsequently filed and approved by the Department of
Environment, Health and Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until February 28, 1996, and shall
be subject to the following specified conditions and limitations:
I. PERFORMANCE STANDARDS
1. The Washington Regional Office, phone no. [phone], shall be notified at
least twenty-four (24) hours after land application of the contaminated soil so that
an 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.
2. This permit shall become voidable if the soils fail to adequately assimilate 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.
3. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Penxnittee 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.
4. 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.. The following buffers shall be maintained:
a) 100 feet between disposal area and any public or private water supply including
wells
b) 100 feet between disposal area and "SA and SB" classified surface waters
c) 50 feet between disposal area and any stream, lake, river or natural drainageway

d) 50 feet between disposal area and property lines
e) 10 feet between disposal area and surface water interceptor drains or diversions
(upslope)
f) 25 feet between disposal area and surface water interceptor drains or diversions
(downslope) and groundwater drainage systems.
II. OPERATION AND MAINTENANCE REQUIREMENTS
I . 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 of the wastewater treatment facilities. The operator must hold a certificate of
the type and grade at least equivalent to the classification assigned to the wastewater
treatment facilities by the Certification Commission. Once the facility is classified,
the Pem-iittee must submit a letter to the Certification Commission which designates
the operator in responsible charge within thirty days after the remediation facilities
are 50% complete.
3. Adequate measures shall be taken to prevent surface runoff from carrying any
disposed material into any surface waters.
4. The maximum thickness of application shall not to exceed four (4) inches for soils
contaminated with Class I petroleum products and three (3) inches for soils
contaminated with Class II petroleum products.
5. 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.
6. The site shall be adequately limed to a soil pH of at least 6.5 prior to disposal of the
contaminated soil. The contaminated soil and lime shall be thoroughly incorporated
into the top six to eight inches of the native soils by tilling or disking.
7. To ensure that sufficient oxygen is provided for waste biodegradation, the site shall
be retilled at periods of one month, two months, and every six months thereafter
following disposal.
8. No food -chain crops shall be grown on the landfarming sites for at least two years
following the completion of contaminated soil application and remediation.
9. Nutrients, in the form of nitrogen and phosphorus fertilizers, must be applied over
the disposal area and fully incorporated into the mixed contaminated and native soil
layer. To provide maximum benefits, fertilization should occur no sooner than 15
days nor later than 30 days subsequent to disposal.
Rate of fertilizer application should be the lesser of the following;
a) For nitrogen, the tolerance level of the vegetative crop, as determined by a
knowledgeable party, or 75-100 pounds per acre plant available nitrogen
(PAN).
b) For phosphorus, the tolerance level of the vegetative crop, as determined by a
knowledgeable party, or 50-75 pounds per acre P2O5 (or equivalent).
10. The land application of soils contaminated with any products other than Class I or
Class II petroleum products is prohibited.
7

11. All foreign debris shall be removed from the petroleum contaminated soil prior to
land application and at no time shall foreign debris be land applied with the
petroleum contaminated soil.
12. All application sites shall be clearly delineated on the site and on the site map for
each source of contaminated soils.
III. MONITORING AND REPORTING REQUIREMENTS
1, 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 Washington, Regional Office
telephone no. [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 with the land application program which results in the land
application of significant amounts of wastes which are abnormal in quantity or
characteristic.
b. Any failure of the land application program resulting in a discharge of wastes to
receiving waters.
c. Any time that self-monitoring information indicates that the facility is not in
compliance with the conditions and limitations of this permit or the parameters
on which the system was designed.
d. Any process unit failure, due to known or unknown reasons, that render the
facility incapable of adequate sludge treatment.
e. Any spillage or discharge from a vehicle or piping system transporting
contaminated soil to the application site.
Persons reporting such occurrences by telephone shall also file a written report in
letter form within 15 days following first knowledge of the occurrence. This report
must outline the actions taken or proposed to be taken to ensure that the problem
does not recur.
3. There shall be no land application of soils contaminated by a petroleum fuel source
Not regulated under the Federal underground Storage Tank Rules (40 CFR Part
280), unless both both of the following stipulations have been met;
a. The contaminated soils have been tested in accordance with the toxicity
Characteristic Revision Rules as specified in March 29, 1990 Federal
Register (p. 11789 - 11977, and;
b. For any soil in which one or more constituents exceed the regulatory level
specified in (a), a written clearance is required form this Departments
Division of Solid Waste Management that the contaminated soil is not
subject to regulation by programs administered under their authority.
N

4. For each source of contaminated soil, the following informat�Wmust be submitted
to the Washington. Regional Office;
a. Source of contamination (facility, address, county, etc.),
b. Class and specific types of petroleum product. Completion of Certification
of Waste Constituents contained in the Guidelines For Remediation of Soil
Contaminated By Petroleum,
c. Estimated volume of contaminated soil from source,
d. Analysis for total petroleum hydrocarbons (TPH), additionally, Toxic
Characteristic Leaching Procedure analysis shall be conducted for heavy
metals for non -virgin petroleum contaminated soils,
e. Remaining capacity of dedicated site (in cubic yards), and
f . The results of a Toxic Characteristic Leaching Procedure Test (as specified in
the March 29, 1990 Federal register For Toxicity Characteristics Revisions,
p.11798 - 11877) for all petroleum contaminated soils not subject to the
Underground Storage Tank Regulations (40 CFR par 280);
No sources of contaminated soils shall be land applied prior to receiving written
authorization from the Washington. Regional Office.
IV. GROUNDWATER REQUIREMENTS
1. Prior to beginning waste disposal operations, three (3) monitoring wells, one (1)
upgradient and two (2) downgradient, must be installed at the locations shown on
the attached map to monitor groundwater quality. The well(s) shall be constructed
such that the water Ievel is never above or below the screened (open) portion of the
well at any time during the year. The exact location and construction details for
these ,v;•ells must be approved by the Washington Regional Office, from which a
well construction permit must be obtained.
2. The monitoring wells shall be sampled initially after construction (and prior to
waste disposal operations) and thereafter every April, August, and December for
the following parameters:
TDS (500.0) . TOC
pH ( 6.5-8.5 standard units) Water Level
Total Suspended Solids
Volatile Organic Compounds - (by Method 1 or Method 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.
The measurement of water level must be made prior to sampling for the remaining
parameters.
Ll

The measuring points (top of well casing) of all monitoring wells shall be surveyed
relative to mean sea level (M.S.L.). The depth of the water in each well shall be-
measured
emeasured from the surveyed point on the top of the casing. The water level
elevations shall then be determined relative to (M.S.L.).
The numbers in parentheses represent the maximum allowable concentrations in
roundwater for the various analytical parameters, as specified in 15 NCAC 2L
[Groundwater Classifications and Standards]. Unless otherwise noted, the
concentrations are expressed as milligrams per liter.
If TOC concentrations greater than 10 m9 /I are detected in any downgradient
monitoring well, additional sampling and analysis must be conducted to identify the
individual Constituents comprising this TOC concentration. If the TOC
concentration as measured in the background monitor well exceeds 10 mg//1, this
concentration will be taken to represent the naturally occurring TOC concentration.
Any exceedances of this naturally occurring TQC concentration in the downgradient
wells shall be subject to the additional sampling and analysis as described above. .
_ If any volatile organic compounds are detected by method 6230D, or the equivalent
method 502.2, then EPA methods 604 and 611 trust 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.
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW-59 (Compliance Monitoring Report
Form) every May, September, and January.
3. The Compliance _Boundary, delineated on the attached site map, for the disposal
system is specified by regulations in 15 NCAC 2L, Classifications and Water
Quality Standards applicable to the groundwater of North Carolina. An exceedance
of Groundwater Quality Standards beyond the Compliance Boundary is subject to
penalty provisions applicable under General Statute 143-215.6(1)x. The sale of
property, by the Permittee, which is within or contiguous to the disposal system
site may alter location of the Compliance Boundary.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the perimeter of waste disposal, or 50 feet
within the property boundary.
If the title to any property which may affect the location of the Compliance
Boundary is changed, the permittee shall notify the Division Director within 14
days. The Director shall then establish a modified Compliance Boundary which
will be done as a modification to the Permit.
The REVIEW BOUNDARY, for the disposal system is specified by regulations in
15 NCAC 2L, Groundwater Classifications and Standards. A REVIEW
BOUNDARY is established around disposal systems midway between the
Compliance Boundary and 'the perimeter of the waste disposal area. When the
concentration of any substance equals or exceeds the maximum allowable
concentration of that substance at the REVIEW BOUXIDARY, as determined by
monitoring, the permittee shall either (i) demonstrate, through predictive
calculations or modeling, that natural site conditions, facility design and operational
controls will prevent a violation of standards at the Compliance Boundary; or, (ii)
submit a plan for the alteration of existing site conditions, facility design or
operational controls that will prevent a violation of standards at the Compliance
Boundary, and implement that plan upon its approval by the Director.
5

4. Soil samples will be collected, from a minimum of two (real at the disposal site,
at intervals of six months and twelve months following disposal.
Each sample will be composed of the vertical column of soil, extending from land
surfaces to the maximum depth of waste incorporation, and collected by using a soil
auger, Shelby tube or split -spoon sampler.
Samples at each location will be thoroughly mixed and a representative portion
analyzed to determine the concentration of (1) Petroleum Fuel Hydrocarbons
(Method 3550) and (2) any Volatile Organic Aromatic (VOA) compounds present.
A copy of the laboratory results of the soil analysis will be submitted to the
Washington Regional Office, to the attention of the Regional Hydrogeological
Supervisor, within 30 days of sample collection.
5. Soils contaminated with Class I or Class II petroleum products shall not be applied
to an area which has previously received petroleum contaminated soils unless
analysis of soil samples taken from the site indicates that the contamination levels
have been reduced to below detection levels. Soils analysis shall be in accordance
with the methods described in condition IV -4.
b. Any groundwater quality monitoring as deemed necessary by the Division of
Environmental Management shall be provided.
7. No land application activities of waste activities shall be undertaken when the
seasonal high water table is less than three feet below land surface.
8. No food chain crops may be grown on the disposal site.
9. A minimum buffer zone of 75 feet shall be maintained between areas of land
application and the downgradient property boundary (see attached map).
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 designee shall inspect the contaminated soil area to prevent any
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 keep 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 and facility
at any reasonable time for the purpose of detenmining 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.
I

VI. GENERAL CONDITIONS
1. This permit shall become voidable unless the contaminated soil is disposed of in
accordance with the conditions of this permit and the approved documents.
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. In any future transfer of this land, a notice shall be given to the new owner that
gives full details of the materials applied or incorporated at this site.
5. A set of approved documents for the subject project must be retained by the
applicant for the life of the 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 143-215.6.
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 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 7th day of March, 1991
TH CAROLINA
G'e'orge T. Evert
Division of Env;
By Authority of
Permit No. WQ0004579
AL MANAGEMENT COMMISSION
tal Management Commission
7

A
DWELL,Qc�
l I I I I I/ zori6 qq 91,
Ilk CL
------------------------- 1-1-4-1-1 -----------
t.

(MISCELLANEOUS UNITS CONTINUED) POINTS
(c) Holding Pond for Effluent Flow Equalization and/or
Stage Discharge . . . . . . . . . . . . . . . . 5
(d) Effluent Pumps. . 3
(e) In -Plant Pumps (including air lifts). . . . . . . . 2
(f) Stand -By Power Supply . . 3
(g) Thermal Pollution Control Device 3
(h) Treatment Processes for Removal of Metal or Cyanide and
other Toxic Materials . . . . 1 . . . . . . . 30
Total Points r10
CLASSIFICATION
Clas� 5 - 25 Points
Class [I . . . . 26 50 Points
Class III . . . . . . . . . . . . . . . 51 - 65 Paints
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.
-4-
North Carolina
Division of Environmental Management
Checklist of Facility Components
To be Used In Determing Facility Classification
All information will be printed:
Name of Plant 16Y
County /9& - r e
Owner or Contact Person wo" L` 404 -)ley, X19 356-a,J 7'Z
eI g o
Mailing Address 0
Street or P.O. 8ox No. Town or City Zip
Permit Number Information Construction Status
NPOES Permit No. Please Check.
Existing Facility
Date Issued Upgraded Facility _
New Facility
State Permit No PA16V fJU yS­7 R' If Upgraded or New Facility, Give.
50% Completion Date
Date Issued I -J 1DDY Completion Date /�-
Rated by _3Qlt1 Regional Office CPIifal Date
Operator in Responsible Charge Grade _
Design Flow of Plant In GPD Plant Class
ITEM POINTS
(1)
PRETREATMENT UNITS (see definition No. 34) . . . . . . . . 2
(2)
DESIGN FLOW OF PLANT IN GPD (not applicable to non -
contaminated cooling waters and non -discharging systems
0 -- 20,000 . . . . . . . . . . . . . . . . . 1
20,001 -- 50,000 . . . . . . . . . . . . . . . . . 2
50,001 -- 100,000 . . . . . . . . . . . . . . . . . 3
100,001 -- 250,000 . . . . . . . . . . . . . . . . . 4
250,001 -- 500,000 . . . . . . . . . . . . . . . . . . 5
50D,O01 -- 11000,000 . . . _ 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 maximum of . . . 30
Design Flow (GPD):
(3)
PRELIMINARY UNITS (see de nit on Na. 3 . . . . _ . ..
(a) Influent Pumps (including air lift) . . . . . . . . . 3
(b) Bar Screens . . . . . . . . . . . . . . . . . . . . 1
or
(C) Mechanical Screens, Static Screens or Comminuting
Devices. . . . . . . . . . . . . . . . . . . . 2
(d) Grit Removal or . . . . . . . . . . . . . . . 1
(e) Mechanical or Aerated Grit Removal . . . . . . . . . 2
(f) Flow Measuring Device or . . . . . . . . . . . . . . 1
(g) Instrumented Flow Measurement . . . . . . . . . . 2
Effective
-- 4/1/87 �'Y -1-

(4)
(5)
(6)
ITEM
POINTS
(H)
Preaeration or Equalization . . . . . .
1
(i)
Grease or Oil Separators -- Gravity .'. . .
2
Land Application (see definition No. 23b) . . . . .
Mechanical. . . . .
3
Aerated . . . . . . .
5
(j)
Chemical Conditioning . . . . . . . . .
5
PRIMARY
TREATMENT UNITS
(k)
(a)
Septic Tank (see definition No. 44) . . . . . _ . .
2
(b)
Imhoff Tank . . . . . . .. . . .
3
(c)
Primary Clarifiers (including sludge air lifts) . .
5
d)
Settling Ponds or Settling Tanks for Inorganic Nom -
(m)
Past Aeration - Cascade . . . . . . _
Toxic Materials Involving a Discharge to the Surface
waters (sand, gravel, stone, and other mining operations
5
except recreational activities such as gem.or gold
Pre -Package Unit for Removal of Oil and Grease
30
mining) . . . . . . . . . . . . . . ..
10
SECONDARY TREATMENT UNITS
5
(a)
Carbonaceous Stage
Sand or Mixed -Media Filters -- Low Rate . . . . ..
2
(i) Aeration - High Purity Oxygen System . . . .
20
High Rate ..
Diffused Air System . . . . . . . . . . .
10
SLUDGE TREATMENT
Mechanical Air System (fixed, floating or rotor)
8
(a)
Separate Sludge Reaeration . . . . . . . . .
3
Trickling Filter - High Rate . . . .
7
5
Standard Rate . . . . . .
5
Unheated . . . .
Packed Tower . . .
5
(b)
(iii) Aerated Lagoons . .
10
(iv) Rotating Biological Contactors (biodisc). . .
10
2
(v) Sand Filters (intermittent biological) . . .
2
Sludge Elutriation . . . . .
(vi Stabilization Lagoons
5
(e)
(vii; Clarifier (including sludge air lifts). . . .
5
(b)
Nitrogenous Stage
Sludge Thickener . . . . . _ .
2
(i) Aeration - High Purity Oxygen System. . . . .
20
Sludge Gas Utilization (including gas storage). .
Diffused Air Systems _ . . _ . . . . . . . .
10
(h}
Mechanical Air System (fixed, floating, or rotor)8
5
Separate Sludge Reaeration . . . . . . . . .
3
Non-aerated
(ii) Trickling Filter - High Rate . . . . . .
7
(i)
Standard Rate . . . _ . .
5
Packed Tower. . . . .
5
10
(iii) Rotating Biological Contactors (biodisc)
10
vacuum Filter, Centrifuge or Filter Press . . . .
(iv) Sand Filter (intermittent biological). .
2
SLUDGE DISPOSAL (including incinerated ash)
(v) Clarifier (including sludge air lifts) . . .
5
TERTIARY OR ADVANCED TREATMENT UNITS
Lagoons2
(a)
Activated Carbon Beds - Without Carbon regeneration
5
Land Application (surface and subsurface) -(see def-
ef_
23a)
23a ) . . . . . . . . . . . ..
With Carbon regeneration.
1S
(b)
Powdered or Granular Activated Carbon Feed - Without
5
(9)
Carbon regeneration
5
With Carbon regeneration.
15
(c)
Ammonia Stripping . . . . . . . . . . . . . . .
18
(d)
Chemical Additions . _ . . . . . . . , .
5
(e)
Denitrification Process (separate process). . . .
10
(f)
Electrodialysis . . . . . . . . . . . . . . . . .
5
(g)
Foam Separation . . . , . . . . . . . . . . .
5
(h)
Ion Exchange . . . . . . . . . . . . . . . . . . .
5
-2-
LSE
ITEM
POINTS
(i)
Land Application (see definition No. 23b) . . . . .
5
(not applicable for facilities under 10(a) .
( j )
Mi croscreens . . . . . . . . . . . . ... . . .
5
(k)
Phosphorus Removal _ . . . . . . . . . . .
20
(1)
Polishing Ponds- Without aeration . . _ . . . . .
2
With aeration . . . . . . . _ . .
5
(m)
Past Aeration - Cascade . . . . . . _
0
Diffused or Mechanical . . . .
5
(n)
Pre -Package Unit for Removal of Oil and Grease
30
(o)
Reverse Osmosis . . . . . . . . . . . . ..
5
(p)
Sand or Mixed -Media Filters -- Low Rate . . . . ..
2
High Rate ..
5
(7)
SLUDGE TREATMENT
(a)
Sludge Digestion Tank -- Heated . . . . . . . .
I0
Aerobic . . . . . . . . .
5
Unheated . . . .
3
(b)
Sludge Stabilization (chemical or thermal) . . . .
10
c)
Sludge Drying Beds
2
(d)
Sludge Elutriation . . . . .
5
(e)
Sludge Conditioner (chemical or thermal) _ . . . ,
5
(f)
Sludge Thickener . . . . . _ .
2
{g)
Sludge Gas Utilization (including gas storage). .
2
(h}
Sludge Holding Tank -- Aerated :
5
Non-aerated
2
(i)
Sludge Incinerator (not including activated carton
regeneration) . . . . . .
10
(j)
vacuum Filter, Centrifuge or Filter Press . . . .
10
(8)
SLUDGE DISPOSAL (including incinerated ash)
(a)
Lagoons2
(b)
Land Application (surface and subsurface) -(see def-
ef_
23a)
23a ) . . . . . . . . . . . ..
(c)
Landfilled (burial) . . . . . . . . . . . . . . .
5
(9)
DISINFECTION
. . . . . . . . . . . . . . . . . . . . . . .
I
NPre
intermediate . . . . . . . . . . . . . . . . . .
2
(c)
Post . . . . . . . . . . . . . . . . . . . . . .
3
(d)
Dechlorination. _ . . . . . . . . . . .
5
(e)
Chlorine or Ozone Generation . . . . . . . . . .
5
(f)
Radiation . . . . . . . . . . . . . . . . . .
3
(10)
MISCELLANEOUS
UNITS
(a)
Holding Ponds or Holding Tanks for Inorganic, lion -toxic
Materials with no Discharge to the Surface Waters
2
(Sludge handling facilities for water purification
plants, sand, gravel, crushed stone and other similar
operations --see definition No. 10)
(b)
Holding Ponds or Holding Tanks for Organic or Toxic
Materials with no Discharge to the surface Waters
4
(Any pump, valve, or other mechanical control subject
to failure creating a potential for bypass or discharge
from the holding ponds or tanks will necessitate
a
minimum classification of Class I requiring a certified
operator).
LSE