WQ0004009_Final Permit_19910214

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
William W. Cobey, Jr., Secretary
February 14, 1991
Mr. Dan C. Howe, Vice President
Sugarloaf Properties, Incorporated
100 Main Street
McAdenville, North Carolina 28101
George T. Everett, Ph.D.
Director
Subject: Permit No. WQ0004059
Sugarloaf Properties, Incorporated
Atlantic Station WW'IP
Rotary Distributors
Carteret County
Dear Mr. Howe:
In accordance with your application received August 29, 1990, we are forwarding
herewith Permit No. WQ0004059, dated February 14, 1991, to Sugarloaf Properties, Incorporated
for the continued operation of the subject wastewater treatment and disposal facilities.
This permit shall be effective from the date of issuance until January 31, 1996, and shall
supersede Permit No. 10757R3 issued November 11, 1987, 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 permit. This request must be in the form of a written petition, conforming
to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative
Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this
permit shall be final and binding.
One set of approved "as -built" plans is being forwarded to you. If you need additional
information concerning this matter, please contacts . Mark Hawes at 919/ 733-5093.
S nc rely,
eorge T. E ett
CC' Carteret County Health Department
Wilmington Regional Office
Groundwater Section
Training and Certification Unit
Rose & Associates, P.A.
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
HIGH RATE INFILTRATION 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
Sugarloaf Properties, Incorporated
Carteret County
continued operation of a 100,000 gpd wastewater treatment and disposal facility consisting of an
influent bar screen, a 20,000 gallon aerated flow equalization tank with dual 80 gpm submersible
pumps and high water alarm, flow control box, dual extended aeration package plants, each
consisting of a 50,000 gallon aeration tank and a 8,333 gallon clarifier; dual 280 cfm blowers with
a standby blower of equal capacity, a 100,000 gpd tertiary filter unit including backwash pumps
and air scouring blowers, a 8,700 gallon sludge holding tank, a 2,084 gallon chlorine contact tank,
with dual tablet type chlorinators, an effluent recording flow meter, a 5,863 gallon effluent dosing
tank with dual submersible pumps and high water alarm, two (2) 86 ft diameter rotary distributors,
an onsite standby power generator with sufficient capacity to operate the entire facility, and all the
associated piping, valves, and appurtenances to serve Atlantic Station with no discharge of wastes
to the surface waters, pursuant to the application received August 29, 1990 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 January 31, 1996, and shall
supersede Permit No. 10757R3 issued November 17, 1987, and shall be subject to the following
specified conditions and limitations:
PERFORMANCE STANDARDS
1. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action to
correct the problem, including actions as may be required by this Division, such as
the construction of additional or replacement wastewater treatment or disposal
facilities.
2. This permit 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. Ponding of wastewater on the surface of the distribution field
when the dosing cycle commences shall be considered evidence of failure of the soils
to adequately absorb the wastewater. Additionally, such failure shall be interpreted
as a violation of this permit condition.

3. T.�C, 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,
4. Adequate measures shall be taken to divert stormwater from the high rate infiltration
area and to prevent wastewater runoff.
5. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
6. 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.
7. The following buffers shall be maintained:
a) 500 feet between high rate infiltration unit and any public works surface supply
or public shallow potable water well.
b) 100 feet between high rate infiltration unit and any "SA" classified surface
waters.
c) 50 feet between high rate infiltration unit and any other surface waters.
d) 100 feet between high rate infiltration unit and property lines.
c) 50 feet between treatment units and property lines.
f) 50 feet between high rate infiltration unit and other treatment units and public
right of ways.
g) 200 feet between high rate infiltration unit and surface or groundwater drainage
systems.
A usable green area shall be maintained for wastewater disposal. The green area
shall have the capability of accommodating the average daily flow of the facility
being served without exceeding the loading rates of the green area. A "green area"
as defined in 15 NCAC 211.0404 (g)(7) is an area suitable for waste disposal, either
in its natural state or which has been modified by planting a vegetative cover of
grasses or low growing shrubbery.
11. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. 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 grade at least equivalent to the classification assigned to the
wastewater treatment facilities by the Certification Commission.
3: The application rates for the high rate infiltration system shall not exceed 10 gpd/sf.
4. The facilities shall be effectively maintained and operated as a non -discharge system
to prevent the discharge of any wastewater outside the high rate infiltration disposal
area resulting from the operation of this facility.
5. No traffic or equipment shall be allowed on the disposal area except while
installation occurs or while normal maintenance is being performed.
6. The rotary distribution fields shall be raked twice weekly during the months April to
October, and once a week during the months of November to March.
7. The screenings removed from the wastewater treatment plant shall be properly
disposed of in a sanitary landfill.
2

III
&. The distribution field(s) shall be kept fr—RSf vegetation at all times. There shall be
no rotor tillers used on the rotary distribution field(s).. Vegetation must be removed
from the field(s) manually.
9. The application of chemicals to the distribution field(s) is expressly prohibited.
10. An automatically activated stand by power source shall be on site and operational at
all times. If a generator is employed as an alternate power supply, it shall be tested
weekly by interrupting the primary power source.
11. The flow measurement device shall be calibrated annually by a representative of a
firm which is routinely engaged in the calibration of flow measurement devices.
Records of this calibration, including all information pertinent to the calibration, shall
be available during any inspection by Division staff.
12. Diffusers shall be cleaned as needed to assure adequate aeration. Records of
maintenance shall be maintained by the permittee.
13. The chlorine tablets used in the disinfection facility shall be of the kind and type
specified in the plans and specifications approved by the Division.
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. As an indicator of proper operation and maintenance, the facility shall produce an
effluent in compliance with the following limitations:
Parameter Monthly Averagea Daily Maximumb
Flow 0.100 MGD
BOD5 10 mg/l 15 mg/l
NH3 as N 4 mg/l 6 mg/l
TS S 20 mg/l 30 mg/1
a. Monthly average shall be the arithmetic mean of all samples collected during the
reporting period.
b. Daily maximum shall be the maximum value of all samples collected during the
reporting period.
The effluent from the subject facilities shall be monitored by the Perrnittee at the
point prior to discharge to the rotary distributor for the following parameters:
Parameter
BOD5, 5-day, 20C
NH3 as N
TSS
Fecal Coliform
Flow
Residual Chlorine
Location of
Sampling Points
Effluent
Effluent
Effluent
Effluent
Influent or Effluent
Effluent
Measurement Sample
Frequency Type
*2/Month Composite
*2/Month Composite
*2/Month Composite
*2/Month Grab
Continuous Recording
Daily Grab
i

NO3
Effluent
* **Triannually
Grab
TDS
Effluent
m*Triannually
Grab
TOC
Effluent
**Triannually
Grab
Chloride
Effluent
**Triannually
Grab
The effluent pH shall not be less than 6.0 standard units nor greater than 9.0
standard units.
*2/Month sampling frequency only during the months of April through October.
During the remainder of the year, these parameters shall be monitored monthly.
**Triannual sampling frequency shall correspond with triannual monitoring of wells
required by Groundwater monitoring conditions.
If Groundwater sampling indicates or predicts problems with the compliance with
Groundwater Standards, this permit will be modified to include additional and/or
more restrictive limitations.
3. Three copies of all monitoring data (as specified in condition 111.2) shall be
submitted on or before of the last day of the following month to the following
address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 27687
Raleigh, NC 27611-7687
4. A record shall be maintained of all residuals removed from this facility. The record
shall include the name of the hauler, permit authorizing the disposal or a letter from a
municipality agreeing to accept the residuals, date the residuals were hauled, and
volume of residuals removed.
5. A maintenance log shall be maintained at this facility including but not limited to the
following items:
a. Daily sampling results including residual chlorine, settleable matter, and
dissolved oxygen in the aeration basin and at the clarifier weir.
b. Visual observations of the plant and plant site.
Record of preventative maintenance (changing of filters, adjusting belt tensions,
alarm testing, diffuser inspections and cleanings, etc.).
d. Date of calibration of flow measurement device.
e. Date and results of power interruption testing on alternate power supply.
f. Dates fields were raked and arms inspected.
6. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington 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:
0

IV
Any occurrence at the wastewater treatment facility which results in the
treatment of significant amounts of wastes which are abnormal in quantity or
characteristic, such as the dumping of the contents of a basin or tank; the known
passage of a slug of hazardous substance through the facility; or any other
unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that 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 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.
GROUNDWATER REQUIREMENTS
Within 90 days of permit issuance, monitoring well No. 2 shall be properly
abandoned in accordance with 15 NCAC 2C .0113.
2. Within 90 days of permit issuance, one (1) downgradient monitoring well shall be
installed to monitor groundwater quality. The well shall be constructed such that the
water level in the well is never above or below the screened (open) portion of the
well at any time during the year. However, the exact location and construction
details for these wells must be approved by the Wilmington Regional Office, from
which a well construction permit must be obtained.
3. The new monitoring well along with the two remaining existing monitoring wells
must be sampled every March, July, and November for the following parameters:
NO3 (10.0) 'IDS (500.0)
TOC pH ( 6.5-8.5 standard units)
Ammonia Nitrogen Chlorides (250.0)
Water Level Fecal Coliforms (1/100 ml)
Total Phosphorus Total Suspended Solids (5.0)
Volatile Organic Compounds - In November only (by Method 1 or Method 2
below)
Method 1: Method 6230D ( Capillary - Column), "Standard Methods for
the Examination of Water and Wastewater", 17th edition, 1989
Method 2: Method 502.2 " Methods for the Determination of Organic
Compounds in Drinking Water", United States Environmental
Protection Agency - 600/4-88/039
The measurement of water level must be made prior to sampling for the remaining
parameters.
5

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 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
groundwater for the various analytical parameters, as specified in 15 NCAC 2L
[Groundwater Classifications and Standards]. Unless otherwise noted, the
concentrations are given in parts per million.
If TOC concentrations greater than 10 mg/l 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 backszround monitor well exceeds 10 mg/l, this
concentration will be taken to represent the naturally occurring TOC concentration.
Any exceedances of this naturally occurring TOC concentration in the downgradient
wells shall be subject to the additional sampling and analysis as described above.
If any volatile organic compounds are detected by method 6230D, or the equivalent
method 502.2, then EPA methods 604 and 611 must also be run to detect other
organic compounds which may be present. The results of all analysis specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously
The results of the sampling and analysis shall be sent to the N.C. Division of
Environmental Management on Form GW-59 (Compliance Monitoring Report
Form) every April, August, and December.
4. The ground surface elevations and the measuring points (top of well casing) of all
monitoring wells shall be surveyed relative to mean sea level (M.S.L.). The water
level in each monitoring well shall be measured to the nearest 1/100 ft and the
groundwater flow calculated. The above information shall be submitted to the
Wilmington Regional Office within 120 days of permit issuance.
5. Within 120 days of permit issuance Sugarloaf Properties, Incorporated shall
determine the exact location of all monitoring wells and submit to the Wilmington
Regional Office a survey plat detailing these locations.
6. The Compliance Boundary_ delineated on the attached 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)a. 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.
R

The REVIEW BOUNDARY delineated on the attached map 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 BOUNDARY, 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.
7. All monitoring wells shall be equipped with vented caps and locks to prevent
unauthorized access.
Any groundwater quality monitoring as deemed necessary by the Division of
Environmental Management shall be provided.
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 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 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 CONDITIONS
1. 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.
7

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.
This wastewater treatment facility shall connect to a publicly owned areawide sewage
collection system within 180 days of its availability. All discharge of wastewater to
the rotary distribution fields shall cease at the time of the connection to the sewerage
collection system.
5.
The annual administering and compliance fee must be paid by the Permittee within
thirty (30) days after being billed by the Division. Failure to pay the fee accordingly
may cause the Division to initiate action to revoke this permit as specified by 15
NCAC 2H .0205 (c)(4).
6.
Prior to a transfer of this land to a new owner, a notice shall be given to the new
owner that gives full details of the materials applied or incorporated at this site.
7.
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.
8.
The issuance of this permit does not preclude the Permittee from complying with an),
and all statutes, rules, regulations, or ordinances which may be imposed by other
government agencies (local, state, and federal) which have jurisdiction.
9.
A set of approved plans and specifications for the subject project must be retained
by the Permittee for the life of this project.
J.O.
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 14th day of February, 1991
CAROLINA ENU/IRONMENI'AL MANAGEMENT COMMISSION
A �11 A , I
Division of Enviro gement
By Authority of the Environmental Management Commission
Permit No. WQ0004059

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DRAWING NUMBER
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No r th Ca ro i i na
Division of Environmental Management
_ Check) ist of Facility Components
To be Used In Determing Facility Classification
(HISCELLANEOUS UNITS CONTINUED)
POINTS
(c)
Holding Pond for Effluent Flow Equalization and/or
Al] inforr,,iation will be printed:
(Stage
d)
Effluent Pumps
nt Pumps
3
/
Plant SC4G�44 D/�y4g,,4 / /e L
(e)
S`)
. . . . . . . . . . . . . . . .
In -Plant Pumps (including air lifts).
Stand -By Power Supply . . . . . . . . . . . . . . .
Name of A CJ •,.�
County C t
lg)
(h)•
Thermal Pollution Control Device . . . . .
Treatment Processes for Removal of Metal or Cyanide
3
and
n
Dwner or Contact Person C� pt Je �O¢f $ 2¢ 3 ssI
other Ioxie Materials . . . . . . . . . . . . .
30
-_� �. _
----le ephone
dQ
Mailing Address LQO H,tr,.+ SafiR�eT I7dG'y%e' �e
Total Points
�
��
Street or P.O. Box No. Town or City Zip
r, nccfr,rnrfnu
Class I . . . . . . . . . . . . . . . . 5 - 25 Points
Class 11 . . . . . . . . . . 26 - 50 Points
Class HI . . . . . . . . . . . . . . 51 - 65 Points
Class IV . . . . . . . . . . . . . . . 56 - 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 respcnsible,charge.
J f-1G fjo 7-8 -1 �Pv
-4-
Permit Number Informdtion
Construction Status
f
NPOES Permit No.
Please Check:
Existing Facility ✓
Date Issued
Upgraded Facility
New Facility
State Permit Flo.WQ000'�dj
If Upgraded or New Facility,
Give:
50% Completion Date
Date lssued
100'. Completion Date
Rated by �4vr_ "J% _Regional Office, Z_Szt _ �Oate JOJLS190
Operator in Responsible Charge 0_.� Pi(l%j
Grade IL
Design Flow of Plant in GPD 1 00. 0 9_0_
__Plant Class
ITEM
P131NT5
(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 . . . . . . . . . .
. . . . . . .
100,001 -- 250,000 . . . . . . . . . . .
. . . . . . . 4
250,OOI -- 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
of . . . 30
Design Flow (GPO)t
(3) PRELIMINARY UNITS (see definition ho. 35) . .
. . . . . ..
(a) Influent Pumps (including air lift) . .
. . . . . . .
b) Bar Screens .
or
(e) Mechanical Screens, Static Screens or Comninuting
-
Devices . . . . . . . . . . . . .
. . . . . . . 2
(d) Cri L Removal or . .
. . . . . 1
(e) Hechanical or Aerated Grit Removal . . .
. . . . . . 2
(I') Flow Measuring Oevice or . . . . . . . .
. . . . . . t
,�
(g} Instrumented Flow Measurement , . , , . .
, . . . , .
EFfocLive
7/ 1/R3
9

ITEM
POINTS
A
(h)
Preaeration or Equalization . . . . . . . . . .
n1
(i)
Grease or Oil Separators -- Gravity . . . . .
2
Mechanical. . . .
3
Aerated . . . . . . . .
5
(jJ
Chemical Conditioning . . . . . . . . . . . . . . .
5
(4)
PRIMARY TREATMENT UNITS
(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 Non -
Toxic Materials Invaiving a Discharge to the Surface
waters (sand, gravel, stonr., and other mining operations
except recreational ,ic.tiviLies such a, gem or gold
mining), . . " . . . . . . . . . . . . . . ..
10
(5)
SECONDARY TREATMENT UNITS
(a)
Carbonaceous Stage
(i) Aeration - High Purity Oxygen System
Diffused Air System . . . . . . . . . . .
0
Mechanical Air System (fixed, floating or rotor)
Separate Sludge Reaeration . . . . . . ...
3
(ii} Trickling Filter - High Rate . . . . . . . .
7
Standard Rate . . . . . .
5
Packed Tower . . . . . . .
5
(iii) Aerated Lagoons . . . . . . . " . . .
10
(iv) Rotating Biological Contactors (biodisc).
10
(v) Sand Filters (intermittent biological) . _
2
(vi) Stabilization Lagoons with Outlet to Stream
S
(vii)
Clarifier (including sludge air lifts). . .
Q
(b)
Nitrogenous Stage
(i) Aeration - High Purity Oxygen System,
20
Diffused Air Systems. . . . .
10
Mechanical Air System (fixed, fioating, or rotors
Separate Sludge Reaeration . . . . . . . . .
3
(ii) Trickling Filter - High Rate . . . . . . . .
7
Standard Rate . . . . .
5
Packed Tower. . .
5
(iii) Rotating Biological Contactors (biodisc)
In
(iv) Sand Filter (intermittent biological). .
2
(v) Clarifier (including sludge air lifts)
5
(6)
TERTIARY OR AOYANCEO TREATMENT UNITS
(a)
Activated Carhon Seds - Without Carbon regeneration
5
With Carbon regeneration.
15
(b)
Powdered or Granular Activated Carbon Feed - ',Without
Carbon regeneration . "
5
With Carbon regeneration.
I5
(c)
Ammonia Stripping . . . . . . . . . . . . . . . .
18
(d)
Chemical Additions . . . . . . . . . .
5
(e)
Denitrificatlon Process (separate process). . . .
10
(f)
Electrodialysis . . . . . . . . . . . . . . . . .
5
(9)
Foam Separation . " . . . . . . . . . . . . . . .
5
(h)
Ion Exchange . . . . ... . . . . . . . . . . . . .
5
}
�4
-2-
ITEM
POINTS
(1)
Land Application (see definition Ro. 23b)
5
(not applicable for facilities under 10(a) . . . .
M
Microscreens . . . . . . . . . . . . . .. . . .
5
(k)
Phosphorus Removal . . . . . . . . .
20
(1)
Polishing Ponds- Without aeration
2
'Ai th aeration . . . . . . . . . .
5
(m)
Post 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 . " .
High Rate . , . ..
(7}
SLUDGE TREATMENT
(a)
Sludge Digestion Tank -- Heated . . . . . . . . . .
10
Aerobic . . . . . . . . .
5
Unheated . . . . . .
3
(b)
Sludge Stabilizati0rti (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
(hi
`kludge Holding Tank -- Aerated . . . . . . . . . .
(i
Non -aerated . . . . . .
2
(i)
Sludge Incinerator (not including activated carbon
regeneration) . . . . . . .
10
(j)
Vacuum Filter, Centrifuge or Filter Press . . . .
10
(8)
SLUDGE DISPOSAL (including incinerated ash)
(a)
Lagoons
2
(b)
Land Application (surface and subsurface) (see def.
23a ) . . . . . . . . . . . . .
10
(c)
Landfilled (burial) . . . . . . . . . . . . . . .
5
(9)
DISli4FECTION
Pre
1
�a)
h)
Internwdiate . . . . . . . . . . . . . . .
2
(c)
Post . . . . . . . . . . . . . . . . . .
0
(6)
DechIorinatic n. . . . . . . . . . . . . . .
5
(e)
Chlorins or Ozone Generation . . . . . , . . . .
5
(f)
Radiation . . . . . . . . . . . . . . . . .
3
(10)
MISCELLANEOUS UNITS
(a)
Holding Ponds or Holding Tanks for Inorganic, Non -toxic
Materials with no Oischarge 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),
A)
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