WQ0007103_Final Permit_19930708

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
July 8, 1993
Nick Crane, North Carolina Regional Director
Quadrant, Inc.
Post Office Box 4455
Emerald Isle, North Carolina 28594
Jonathan E. Howes, Secretary
Subject: Permit No. WQ0007103
Sound of the Sea Master Association, Inc.
Sound of the Sea Townhouses
Wastewater Treatment and Disposal System
Carteret County
Dear Mr. Crane:
In accordance with your application received October 8, 1992, we are forwarding herewith Permit
No. WQ0007103, dated July 8, 1993, to the Sound of the Sea Master Association, Inc. for the continued
operation of the subject wastewater collection, treatment and disposal facilities.
This permit shall be effective from the date of issuance until April 30, 1998, shall void Permit No.
6623-R issued March 9, 1988 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.
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. Michael D. Allen at
[phone].
Sincerely,
A Pr est Howard, Jr., P.E.
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

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 THE
Sound of the Sea Master Association, Inc.
Carteret County
FOR THE
continued operation of a 40,000 GPD wastewater collection, treatment and disposal system consisting of
approximately 1,810 linear feet of 8-inch gravity sewer, approximately 90 linear feet of 10-inch gravity
sewer, an 80 GPM pump station with dual pumps, high-water alarm, stand-by power and approximately
30 linear feet of 4-inch force main, dual aeration chambers, dual clarifiers, dual aerated sludge holding
tanks, dual filters with back wash and wash water pumps, two (2) 125 CPM blowers, dual chlorinators, a
chlorine contact basin, a dosing tank with dual 75 GPM pumps, standby power, two (2) 62-foot diameter
rotary distributors and all associated piping, valves and appurtenances to serve one hundred and ten (110)
homes in Phase I of the Sound of the Sea Townhomes with no discharge of wastes to the surface waters,
pursuant to the application received October 8, 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 April 30, 1998, shall void Permit No.
6623-R issued March 9, 1988 and shall be subject to the following specified conditions and limitations:
I. 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 15 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.
II. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202.

3. 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.
4. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
5. 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.
6. The screenings removed from the wastewater treatment plant shall be properly disposed of
in a sanitary landfill.
7. 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.
S. The application of chemicals to the distribution field(s) is expressly prohibited.
9. 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.
10. 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.
11. Diffusers shall be cleaned as needed to assure adequate aeration. Records of maintenance
shall be maintained by the permittee.
12. 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.
13. Daily visits by the ORC shall be done Monday, Wednesday, Friday, Saturday and Sunday
during the months of April through October including holidays which fall on these days.
MONITORING AND REPQRTING 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 40,000 . GPD
BOD5 10 mg/1 15 mg/l
N113 as N 4 mg/l 6 mg/l
TS S 20 mg/1 30 mg/l
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 rotary distributor for the following parameters:
Parameter
Location of
Sa.Wling Points
Measurement
Frequency
Sample
TyM
BOD5, 5-day, 20C
Effluent
*2/Month
Composite
NH3 as N
Effluent
*2/Month
Composite
TS S
Effluent
*2/Month
Composite
Fecal 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 the compliance with
Groundwater Standards, this permit will be modified to include additional and/or more
restrictive limitations.
3. 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.
4. 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.
e. Date and results of power interruption testing on alternate power supply.
f. Dates fields were raked and arms inspected

5 . 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
6. Three copies of all effluent monitoring data (as specified in condition 111 2) and all
operation and disposal records (as specified in condition III 3 and III 4) and any other data
as may be required shall be submitted annually or before January 31 to:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
7. Noncompliance Notification:
The Permittee shall report by telephone to the 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:
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 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.

The three (3) existing monitor wells shall be sampled every March, July and November for
the following parameters:
NO3 Ammonia Nitrogen
TOC Orthophosphate
pH Water Level
Chloride Fecal Coliforms
NO2 Total Suspended Solids
Volatile Organic Compounds - In Novmeber 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 depth of water in each well shall be measured from the surveyed point on
the top of the casing.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to
provide relative elevations of the measuring point for each of the monitoring wells.
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 background 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, P.O. Box 29535, Raleigh, N.C. 27626-0535 on Form GW-
59 (Compliance Monitoring Report Form) every April, August and December.
2. The Compliance Boundary 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.
For facilities permitted on or after December 30, 1983, the Compliance Boundary is
established at the lesser of 250 feet from the rotary distributors, or 50 feet within the
property boundary.
Any sale or transfer of property which affects the location of the compliance boundary shall
be reported immediately to the Director. The permittee shall not transfer land within an
established compliance boundary unless the permittee has satisfied all the requirements of
15A NCAC 2L .107 (e and f).

The REVIEW BOUNDARY for the disposal system is specified by regulations in 15
NCAC 2L, Groundwater Classifications and Standards. A REVIEW BQUNDARY 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 jiLhQr (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; gr,
(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.
3. Any 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.
V I. E ERAL CONDITIONS
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 Perrittee, 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 15 NCAC 2H .0205
(c)(4).
6. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6A to 143-215.6C.
7. The 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 othergovernment
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
Pem-dttee 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.
Permit issued this the 8th day of July, 1993
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston Aoward, Jr., Pllnageme-nt
Director
Division of nvironmental
By Authority of the Environmental Management Commission
Permit No. WQ0007103

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HA! 1NG SCALE FOR CLASSIFICATION OF FACILITIES
Name of Plant: aocty-�c
Owner or Contact Person: I c(� Crrt
Y.e
Mailing Address:?. o. 2D4 �fKS.s
1 c l v � C�__2 59 Y
�`—-------------
C-ounty: t&.c.t- . Te!aphone.
&1 ,3sy-Ia33
NPDES Permit No. NC70 Nondisc,
Per. No.&)Q 0) 7� /0 _
IssueDate: Expiration
Date: 3--5/—?3
Existing Facility ✓ New Facility
Rated By: C--d R,21 [L Date:
Reviewed (Train. & Cert.) Reg. Office
Reviewed (Train. & Cert.) Central Office
ORC� , ? yVXC„C_ Grade
Plant Class: (circle one) I i!. III
IV Total Points
ITEM POINTS (5) SECONDARY TREATMENT UNITS
(a) Carbonaceous stage
(1) Industrial Pretreatment Units and/or
Industrial Pretreatment Program
(i)Aeralion - High Purity Oxygen System .....
Diffused Air System
2
...........
1 a
(see definition No. 33) 4
Mechanical Air System (fixed,
(2) OF�i z FLOW OF PLANT IN GPD
floating or rotor
{nol applicable to non -contaminated cooling waters, sludge
Separate Sludge Reaeration .....
3
handling facilities for water purification plants, totally
(ii) Trickling Filler
closed cycle_ systems (del. No. 11), and facia"sties
High Rate ...................
7
consisting only of Item (4) (d) or Items (4) (d) and (11) (dj}
0 20,000J
Standard Rate ...............
5
..................... I...
Packed Tower. -.............
5
20.001 -- 50,000.......................... 2
50.001 100,000 3
(iii) Biological Aerated Filler or Aeraled
..........................
100,001 •• 250,000 .......................... 4
Biological Filter ......................
............
(iv) Aerated Lagoons ......................
10
a
250,001 -- 500,000.......................... 5
500,001--1,000,000 .......................... 8
(v) Rolaling Biologica! Contactors ..........
10
1,000,001 -- 2,000,000 ........................ 10
2.000,001 (and up) - rate i point additional for each
(v i) Sand Filters-
200,000 gpd capacity up to a
intermittent biological .. ..
2
maxinurn of 30
Design Flow (gpd) _ X(r) iJ JL)
recirculating biological .....
(vii) Stabilization Lagoons
3
(3) PRELIMINARY UNITS (see definit%n no. 32)
.................. .
(viii)C?arilier . ......... .......
5
(a) Bar Screens ................................ 1
{ix) Single stage system for combined
or
carbonaceous removal of BOD and
(b) Mechanical Screens, Slavic Screens or
nitrogenous removal by nitrification
Comminuting Devices ........... ............. 2
(see del. No. 12.) (Points for this item
(c) Grfl Removal ............................... 1
have to be in addition to items (5) (a)
or
..............
(i) through (5) (a) (viii) ...
8
(d) Mechanical or Aerated Grit Removal ... , . , ..... 2
(x) Nutrient additions to enhance SOD
(e) Flow Measuring Device ....................... 1
removai ...............................
5
or
(f) Instrumented Flow Measurement 2
(xi) Biological Culture (.Super Bugs') addition
.. . ...........
(g) Preaeralion 2
to enhance organic compound removal ....
5
....................... . ........
(b) Nitrogenous Stage
(h) Influent Flow -Equalization ........ . .........
(i) Aeration - High Purity Oxygen System .....
20
(i) Grease or Oil Separators - Gravity .......... 2
Diffused Air System ...........
Mechanical Air System (fixed,
10
Mechanical .......... 3
Dissolved
floating, or roior) ...... ......
8
Air Flotation, a
{�) Prechlorination 5
Separate Sludge Reaeration .....
3
.. , ....... ..........
(if) Trickling Filter -
High Rate ..............
7
PRIMARY TREATMENT UNITS
Standard Rate ............
5
(a) Septic Tank (see definition no. 43) .............. 2
Packed Tower ............
5
(b) Imhoff Tank .................................. 5
(iii) Biological Aerated Filler or Aerated
(c) Primary Clarifiers ...... . ..................... 5
Biological Filter .........................
10
(d) Sellling Ponds or Settling Tanks for Inorganic
(iv) Rotating Biological Contactors ....
10
Nontoxic Malerials (sludge handling facilities
(v) Sand Filter -
for water purification plants, sand, gravel,
inlermi+lent biological
2
stone, and other mining operations except
recirculating biological ..
3
recreational activities such as gem or gold
mining) ...................................... 2

y
ATIARY.OR ADVANCED TREATMENT UNIT
tuj Activated Carbons Beds -
without carbon regeneration .................. 5
with carbon regeneration .......... . . .. . ..... is
Powdered or Granular Activated Carbon Feed -
without carbon regeneration ............... 5
with carbon regeneration .................... 15
(c) Air Stripping ..... . ............... I ....... 5
(d) Denitrificalion Process (separate process) . ... . 10
(e) Electrodialysis .............................. 5
(f) Foam Separation ............................. 5
(g) Ion Exchange............ ................. 5
(h) Land Application of Treated Elfluenl
(see definition no. 22b) (not appficaNe for
sand, gravel, stone and other similar mining
operations)
(i) on agricWturally managed sites (See def.
No. 4) ................................... 10
(5) by high rate infiltration on non -agriculturally
managed sites (includes rotary distributors
and similar fixed nozzle systems) ...........
(iii) by subsurface disposal (includes low pressure
pipe systems and gravity systems except at
plants consisting of septic lank and nitrifica-
tion lines only) ........................... . . 4
(i) Microscreens .................................. 5
(j} Phosphorus Remo-ial by Biological Processes
(See def. No. 26) . ......... . ...... . . ......... 20
(k) polishing Ponds - without aeration ....... 2
%vilh aeration .... , .... , 5
(1) Post Aeration - cascade .............. 0
diffused or mechanical ... 5
(m) Reverse Osmosis ......................... . .... . 5
(a) Sand or Mixed -Media Filters - low rate ........... 2
high rate ..........
j 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 Stabilizalion (chemical or thermal) . ... ... 5
(c) Sludge frying Beds - Gravity ......... . ....... 2
Vacuum Assisted 5
(d) Sludge Elulriation ............................. 5
(e) Sludge Conditioner (chemical or thermal) ..... ... 5
(f) Sludge Thickener (gravity) ...................... 5
(g) Dissolved Air Flotation Unil
(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 Incinerator - (not Including activated
carbon regeneration) ... , . 10
(k) Vacuum Filler, Centrifuge or Filter Press or other
similar dewalering devices .................... 10
(9) SLUDGE DISPOSAL (including incinerated ash)
(a) Lagoons ........................................ 2
(b) Land Application (surface and subsurface)
(see definition 222)
-where the facility holds the land app. permit . . . 10
-by contracting to a land application operator who
i holds the land application permit ................ 2
-land application of sludge by a contractor who does
not ho!d the permit for the wastewater treatment
facility where the sludge is generated ...... _ _ . 10
(c) Landlilled (burial) .... ..................... :... 5
(9) DISINFECTION �''�
(a) Chlarination .. . ............ . . ....... .....
(b) Dechlorination ..... . . ............... . . 5
(c) Ozone .............................. 5
(10) -CHEMICAL ADDITION SYSTEM (S) (See definiliun No. 9)
(not applicable to chemical additions rated as item
(3) (i), (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e),
(9) (a), (9) (b), or (9) (c) 5 points each: List:
5
.. 5
5
5
(i 1) MISCELLANEOUS UNITS
(a) Holding Ponds, Holding Tanks or Settling Ponds
for Organic or Toxic Materials including wastes
from mining operations containing nitrogen andlor
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 Supply .................. .........
............
.......................... 3
(1) Thermal Po;lulion Control Device ............................................. 3
TOTAL. POINTS
CLASSIFICATION
Class L.......................................................... 5 - 25 Points
C€ass Il.........:.............................................. 26- 50 Points
Class III ....................................................... 51- 65 Points
Class IV ........................ .:............................... 66- Up Points
Facilities having a rating of one Ihrouoh 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 aclivated sludge process wilt be assigned
a minimum classification of Class It.
Facilities having treatment processes for the removal of metal
or cyanide will be assigned a minimum classification of Class It.
Facilities having treatment processes for the biological removal
of phosphorus will be assigned a minimum classification of Class
III.
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 1,0D0 gpd or less, shalt not be subject to
rating.
ADDITIONAL COMMENTTSm