WQ0000224_Final Permit_19930210

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27604
James B. Hunt, Jr., Governor
February 10, 1993
Mr. Hugh Douglas Helms, Secretary/ Treasurer
Point Emerald Villas Association, Incorporated
Post Office Box 36
Swansboro, North Carolina 28584
Dear Mr. Helms:
Jonathan B. Howes, Secretary
Subject: Permit No. WQ0000224
Point Emerald Villas, Emerald Isle
Rotary Distributor Wastewater Disposal
Wastewater Treatment System
Carteret County
In accordance with your application received October 27, 1992, we are forwarding herewith Permit
No. WQ0000224 dated February 10, 1993, to Point Emerald Villas Association, Incorporated for the
continued operation of the subject wastewater treatment system and the rotary disposal system. This
permit shall renew the surface disposal Rotary Distributor, an existing 4,420 square foot pressure pipe
surface disposal system, and the subject wastewater treatment facilities. The subject Rotary Distributor is
rated at only 22,680 GPD for this subject 52,950 GPD system, therefore making it necessary for the
existing 4,420 square foot surface LPP system to still be maintained and fully operational.
This permit shall be effective from the date of issuance until January 31, 1998, and shall be subject
to the conditions and limitations as specified therein. Please pay particular attention to the monitoring
requirements in this permit. Failure to establish an adequate system for collecting and maintaining the
required operational information will result in future compliance problems. Issuance of this permit hereby
voids Permit No. WQ0000224 issued December 13, 1991. Please be advised that both trains of the
existing dual train wastewater treatment plant facilities must be utilized since each has a design capacity of
approximately one half the design flow capacity of the plant.
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.
Regional Offices
Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem
704/251-6208 919/486-1541 704/663-1699 919/571-4700 919/946-6481 919/395-3900 919/761-2351
Pollution Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

If you need additional information concerning this matter, please contact Mr. John Seymour at 9191
733-5083.
Acting Director
cc: Carteret County Health Department
Wilmington Regional Office, Water Quality
Wilmington Regional Office, Groundwater
Groundwater Section, Jack Floyd
Training and Certification Unit
Facilities Assessment Unit, Karen Colby
Jr., P

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
Point Emerald Villas Association, Incorporated
Carteret County
FOR THE
continued operation of approximately 475 linear feet of 6 inch gravity sewer line, 430 linear feet of 8 inch
gravity sewer line, approximately 865 linear feet of 4 inch force main, a 125 gpm pump station with dual
pumps, high water alarm and standby power, a 52,950 GPD wastewater treatment and disposal facility
consisting of a 14,800 gallon aerated flow equalization basin, dual aeration tanks (one 36,000 gallons and
one 18,000 gallons), dual blowers, dual clarifiers, dual tertiary filters, a 6,900 gallon sludge holding tank,
tablet type chlorinators, a chlorine contact chamber, a dosing tank, a 65 foot diameter rotary distributor
(rated at 22,680 GPD), a 4,420 square foot surface low pressure pipe type distribution field with gravel
cover, a standby power generator, effluent flow measurement, and all associated piping, valves, controls
and appurtenances to serve Point Emerald Villas on Emerald Isle with no discharge of wastes to the
surface waters, pursuant to the application received October 27, 1992, 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, 1998, and shall be subject
to the following specified conditions and limitations:
1. 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. The 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.
e) 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.
Some of the buffers specified above may not have been included in previous permits for
this waste treatment and disposal system. These buffers are not intended to prohibit or
prevent modifications, which are required by the Division, to improve performance of the
existing treatment facility. These buffers do, however, apply to modifications of the
treatment and disposal facilities which are for the purpose of increasing the flow that is
tributary to the facility. These buffers do apply to any expansion or modification of the
high rate infiltration areas and apply in instances in which the sale of property would cause
any of the buffers now complied with, for the treatment and disposal facilities, to be
violated. The applicant is advised that any modifications to the existing facilities will
require a permit modification.
8. 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 15A NCAC 2H
.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.
1. The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class 11, 111, and 1V 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. The application rates for the high rate infiltration system shall not exceed 7.0 gallons per
day per square foot. The total volume of wastewater tributary to the high rate infiltration
unit Rotary Distributor shall not exceed 22,680 gallons per day. The application rates for
the surface low pressure pipe infiltration system shall not exceed 5.8 gallons per day per
square foot. The total volume of wastewater tributary to the surface low pressure pipe
infiltration field shall not exceed 30,270 gallons per day.
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.
8. The distribution field(s) shall be kept free of 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 standby 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 pemxittee.
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.
14. Both trains of the existing dual train wastewater treatment plant facilities must be utilized
since each has a design capacity of approximately one half the design flow capacity of the
plant.
I, I'IM I ! ' I INUI2I 1 , I a TH►
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.
3.
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
0.0529 MGD
Effluent
BODS
10 mg/l
15 mg/1
NH3 as N
4 mg/1
6 mg/1
TSS
20 mg/1
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 Permittee at the point prior
to discharge to the disposal fields (rotary distributor and/or the surface low pressure pipe
disposal field) for the following parameters:
r
Location of
-S a=lin g Pin
Measurement
n
Sample
BODS, 5 -day, 20C
Effluent
*2/Month
Composite
NH3 as N
Effluent
*2/Month
Composite
TSS
Effluent
*2/Month
Composite
Total Coliform
Effluent
*2/Month
Grab
Flow
Influent or Effluent
Continuous
Recording
Residual Chlorine
Effluent
Daily
Grab
NO3
Effluent
**Triannually
Grab
TDS
Effluent
**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 compliance with
Groundwater Standards, this permit will be modified to include additional and/or
more restrictive limitations.
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 29535
Raleigh, NC 27626-0535

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 a 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.
C. 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.
C. Date and results of power interruption testing on alternate power supply.
f. Dates the disposal fields (rotary distributor and surface LPP) were inspected, raked,
distributor arms inspected, plants removed from LPP field gravel, and surface LPP
field piping pressure tested.
6. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone no.
919/395-3900 as soon as possible, but in no case more than 24 hours or on the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such
as the dumping of the contents of a basin or tank; the known passage of a slug of
hazardous substance through the facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that 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 fust knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
1 i•JUIF 1 • V
1. Within 90 days of permit issuance, monitor wells No. 1 shall be abandoned pursuant to
15A NCAC 2C .0 113, because the well has been dry for two (2) years.

2.
3.
Within 90 days of permit issuance, one (1) monitor well, shall be installed to monitor
groundwater quality. The monitor 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
well construction.
All four (4) monitor wells [the three (3) existing and one (1) new monitor well], shall be
sampled every March, July and November for the following parameters:
NO3 TDS
NO2 TOC
pH Total Phosphorus
Total Ammonia Chloride
Water Level Fecal Coliforms
Total Suspended Solids
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. The new monitor well shall be sampled initially after construction and
thereafter per the above schedule.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to
provide relative elevations of the measuring point for each of the monitoring wells. These
elevations shall be provided to the Regional Hydrogeologist within 60 days after well
construction. The depth of water in each well shall be measured from the surveyed point on
the top of the casing.
If TOC concentrations greater than 10 mg/1 are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TQC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mg/l, this concentration will be taken to represent
the naturally occurring TQC 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 Compliance Boundary for the disposal system is specified by regulations in 15A
NCAC 2L, Groundwater Classifications and Standards. An exceedance of Groundwater
Quality Standards beyond the Compliance Boundary is subject to penalty provisions
applicable under General Statute 143-215.6A. The sale of property, by the Permittee,
which is within or contiguous to the disposal system site may alter the 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 the waste disposal areas, 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 DEM 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 15A
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 pian upon its approval by the Director.
5. Within 30 days of monitor well construction, a modified, scaled map of the facility site
shall be submitted to the Division of Environmental Management, Groundwater Section,
(Permits Group) - P.O. Box 29535 Raleigh, North Carolina 27626-0535. The scale of the
map shall be sufficient to show, and shall include the following:
a) Permit Number
b) Facility Name
C) Facility and Related Structures
d) North Arrow
e) Legend
f) All Property Boundaries
g) Location of all wells (including abandoned wells), within 500 feet of the
facility. Wells should be labeled and numbered as to their primary usage
(drinking water, monitoring, process water, etc.)
h) Date of map drawing.
6. Any additional groundwater quality monitoring as deemed necessary by the Division of
Environmental Management shall be provided.
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.
► ' S i►
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.
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. 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.
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 15A NCAC 2H .0205
(c)(4).
b. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
7. The 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.
8. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of this project.

9. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted., will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
10. The rotary distributor and the surface low pressure pipe field covered by this permit
renewal individually are not capable of handling all the permitted flow of the subject
treatment facilities; therefore the surface low pressure pipe disposal field and the rotary
distributor shall each be maintained and operated to handle any treated wastewater flow
above the permitted rating of the other, not to exceed the permitted rating of the rotary
distributor (22,680 GPD), and not to exceed the permitted rating of the surface low
pressure pipe disposal field (30,270 GPD).
11. Issuance of this permit hereby voids Permit No. WQ0000224 issued December 13, 1991.
Permit issued this the 10th day of February, 1993
CAROLINA
A. Preston How6 Jr., P.E.,
Division of Environrne
By Authority of the Environm
Permit No. WQ0000224
AL MANAGEMENT COMMISSION
Commission

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RATING SCALE FOR
CLASSIFICATION
OF FACILITIES
Name of Plant: ?p I, �k l
L- 2M�L��
U,
Owner or Contact Person:
Mailing Address:_
-3
- s��at� • =--`�
-----
-------------
Telephone:
NPDES Permit No. NCOO
Nondisc. Per. No. 2cp
ISsueDate: /-2—/3—j/
Expiration Date: 7 -3 0-73
Existing Facility L/
New Facility
Rated By: FC( �Jec�
Date:
Reviewed (Train. & Cert.)
Reg. Offiice_e
Reviewed (Train. & Cert,)
Central Office
0RC_Cktkc.(c- Ra, ,.,,,
Grade
Plant Class: (circle one)
I Il III
IV Total Points-5f
ITEM
POINTS (5) SECONDARY TREATMENT 'UNITS
(a)
Carbonaceous Stage
(1)
Industrial Pretreatment Units and/or
(i)Aeration - High Purity Oxygen System .... ,
20
Industrial Pretreatment Program
Diffused Air System ...........i
0
{see definition No. 33}
4
Mechanical Air System (fixed,
(2)
r I N FLOW OF PLANT IN GPD
floating or rotor) ...... . ....
8
(not applicable to non-conlaminaled cooling %valers,
sludge
. ..
Separate Sludge Reaeration
3
handling facilities for water purification plants, totally
(ii) Trickling Filter
closed cycle systems (def. No. 11), and facilities
Nigh Rate...................
7
consisting only of Item (4) (d) or Items (4) (d) and (11)
(d))
Standard Rale ...............
5
0 20,000..........................
1
Packed Tower...............
5
20,001 -- 50,000..........................
50,001 -- 100,000 ..........................
2
3
(iii) 5fological Aerated Filler or Aerated
100,001 250,000..........................
4
Bialooical Filter ......
(iv) Aerated Lagoons .... ...............
1 0
10
250,001 500,000..........................
5
. . .
500,001 --1,000,000 ..........................
8
(v) Rataling Biological Contactors ..........
10
1,000,001 -- 2,000,000 ..... . ..................
10
2,000,001 (and up) - rate 1 point additional for each
(vi) Sand Filters-
200,000 gpd capacity up to a
intermittent biological - .
2
maximum of 30
Design ­b
recirculating biological
3
(3)
Flow (gpd) :
PRELIMINARY UNITS (see definition rio. 32)
(vii) Stabilizalion Lagoons ...................
(viii)Clarilier
5
(a) Bar Screens ............................... .
0
................. . .... . ...... .
(ix) Single stage system for combined
or
carbonaceous removal of BOD and
(b) Mechanical Screens, Static Screens or
nitrogenous removal by nitrification
Comminuting Devices ........... ............
2
(see def. No. 12.) (Points for this item
{c) Grit Removal ..................... . .........
or
1
have to be in addition to items (5) (a)
(i) through
(d) Mechanical or Aerated Grit Removat ...........
2
(5) (a) (viii) .................
(x) Nutrient additions to enhance BOD
(e) Flow Measuring Device .......................
1
removal ...............................
5
or
(f) Instrumented Flow Measurement ..............
(xi) Biological Culture ("Super Bugs ") addition
to
(g) Preaeration
2
enhance organic compound removal .....
5
................................
(b)
Nitrooenous Stage
(h) Influenl Flow-Equalization ...................
0
(i) Aeration - High Purity Oxygen System ..
Diffused System
20
(i) Grease or Oil Separators - Gravity ..........
2
Air ...........
Mechanical Air System (fixed,
10
Mechanical ..........
3
floaling, or rotor) ...... ......
8
Dissolved Air Flotation.
a
Separate Sludge Reaeralian . - ...
-3
(j} Prechlorination ............ .......... 5
(ii) Trickling Filter -
High Rate . . . ...........
7
(4)
PRIMARY TREATMENT UNITS
Standard Rate ......... , . ,
5
(a) Septic Tank (see definition no. 43) ..............
2
Packed Tower ........ ....
5
(b) Imhof Tank..................................
5
(iii) Biological Aerated Filter or Aerated
(c) Primary Clarifiers ...... . .....................
5
Biological Filler .........................
to
(d) Settling Ponds or Settling Tanks for Inorganic
(iv) Rotating Biological Contactors ............
10
Non-toxic Materials {sludge handling facilities
(v) Sand Filter-
for water purification plants, sand, gravel,
intermittent biological .. - ..
2
stone, and other mining operations excepl
recirculating biological .. ......
3
recreational activities such as gem or gold
(vi) Clarilier................................
5
mining)......................................
2

�) TERTIARY OR ADVANCED TREATMENT UNIT
(a) Activated Carbons Beds -
without carbon regeneration .................. 5
with carbon regeneration .................... is
(b) Powdered or Granular Activated Carbon Feed -
without carbon regeneration ................. 5
with carbon regeneration .................. . 15
(c) Air Stripping ............................. 5
(d) Denitrification Process (separate p(ocess) ... .. 10
(e) Electrodialysis .............................. 5
(f) Foam Separation ............................. 5
(g) ton Exchange ................... ............ 5
(h) Land Application of Treated Effluent
(see definition no. 22b) (not applicable for
sand, gravel, stone and other similar mining
operations)
(i) on agriculturally managed siles (See def.
N0_4) ................................... 10
(ii) by high rale infiltration on non -agriculturally
managed sites (includes rotary distributors
and similar fixed nozzle systems) ........... 4
(iii) by subsurface disposal {includes low pressur
pipe systems and gravity systems except at
plants consisting of septic lank and nitrifica-
tion lines only) ............................. 4
(i) microscreens............... ................... 5
(j) Phosphorus Remoial by Biological Processes
(See def- No. 26) ............................ 20
(k) Polishing Ponds - without aeration ....... 2
with aeration .......... 5
(1) Post Aeration - cascade .............. 0
diffused or mechanical ... 5
(m) Reverse Osmosis ............................... 5
(n) Sand or Mixed•Media Filters - low rate ... I ....... 2
high rale .......
(o) Treatment processes for removal of metal or
cyanide.................................... 15
(p) Treatment processes for removal of toxic
materials other than metal or cyanide ......... 1 5
SLUDGE TREATMENT
(a) Sludge Digestion Tank - Heated ............... 10
Aerobic , .............. 5
Unhealed ...... ....... 3
._(b) Sludge Slabilization (chemical or Ihermal) .......
(c) Sludge Drying Beds - Gravity ................. 2
Vacuum Assisted ....... 5
(d) Sludge Elutriation ............ ................ 5
(e) Sludge Conditioner (chemical or thermal) ........ 5
(1) Sludge Thickener (gravity) ...................... 5
(g) Dissolved Air Flotation Unit
(not applicable to a unit rates as (3) (i) ... _ ..... B
(h) Sludge Gas Utilization (including gas storage) .... 2
(i) Sludge holding Tank - Aerated ................
Non-aerated ............ 2
(j) Sludge lncineralor - (not including activated
carbon regeneration) ..... 10
(k) Vacuum Filler, Centrifuge or Filter Press or other
similar dewatering devices .................... 10
(9) SLUDGE DISPOSAL (including incinerated 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 ............... 2O
-land application of sludge by a contractor who does
not hold the permit for the wastewater treatment
facility where the sludge is generated ......... 10
(c) Landfilled (burial) ............................. 5
(9) DISINFECTION
(a) Chlorination ........................ .....
(b) Dechlorination .... . ................... 5
(c) Ozone .............................. 5
(d) Radiation ....... . .................. 5
(10) -CHEMICAL ADDITION SYSTEM (S) (See definition No. 9)
(not applicable to chemical additions rated as ilem
(3) (j), (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e),
(9) (a)• (9) (b), or (9) (c) 5 points each: List:
S
. 5
5
5
(i 1) MISCELLANEOUS UNITS
(a) Holding Ponds, Holding Tanks or Settling Ponds
for Organic or Toxic Materials including wastes
from inining operations containing nitrogen and/or
phosphorous compounds in amounts significantly
greater than is common for domestic wastewater .......... 4
(b) Effluent Flow Equalization (not applicable to storage
basins which are inherent in land application systems). 2
(c) Stage Discharge (not applicable to storage basins
inherent in land application systems .:^-'::.'.'...:...._................_. 5
(d) Pumps.........................................................
(e) Stand -By Power Suppty...............................................................
(f) Thermal Pollution Control Device ............................................. 3
TOTAL POINTS SST
CLASSIFICATION
Class I ........................................................... 5 - 25 Points
Class ll._ . ................. ............................... 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 he assigned
a minimum classification of Class Il.
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 QQMMENT.5i
�2