WQ0002128_Final Permit_19971107

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
November 7, 1997
Mr. Kurt O. Svendsen, President
Pebble Beach Home Owner's Association
Post Office Box 4455
Emerald Isle, North Carolina 28594
Subject: Permit No. WQ0002128
Pebble Beach Home Owner's Association
Wastewater Rotary Distributor Facilities
Carteret County
Dear Mr. Svendsen:
In accordance with your application received June 12, 1997, we are forwarding herewith Permit
No. WQ0002128, dated November 7, 1997, to the Pebble Beach Home Owner's Association for the
continued operation of the subject wastewater rotary distributor facilities.
This permit shall be effective from the date of issuance until October 31, 2002, shall void Permit
No. WQ0002128, issued May 30, 1995, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring requirements in this permit. Failure to establish
an adequate system for collecting and maintaining the required operational information will result in future
compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer
27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
If you need additional information concerning this matter, please contact Rick Moore at (919) 733-
5083 extension 527.
Sincere ,
A. Preston Howard, Jr., P.E.
cc: Carteret County Health Department
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Technical Assistance and Certification Unit
Non -Discharge Compliance/Enforcement Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

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
Pebble Beach Home Owner's Association
Carteret County
FOR THE
continued operation of a wastewater collection system consisting of approximately 1,370 linear feet of fl-
inch gravity sewer, a 125 gpm influent pump station with dual pumps and approximately 35 linear feet of
4-inch force main, and the continued operation of a 70,000 GPD wastewater treatment and dual rotary
distributor facility consisting of a bar screen, a 30,000 gallon aerated flow equalization basin with dual 70
gpm pumps and a 1,100 cfm blower, a flow splitter, dual 35,000 gallon aeration tanks with dual blowers,
dual clarifiers, dual aerated sludge holding tanks and an additional 5,800 gallon aerated sludge holding
tank, a tertiary filter unit consisting of a 5,700 gallon clear well with dual 600 gpm backwash pumps and a
50 cfm blower, dual tertiary filters (each with a surface area of 38 ft2), a 6,400 gallon mud well with dual
60 gpm return pumps, a chlorine contact tank with dual tablet type chlorinators, a 4,200 gallon dosing
tank, dual rotary distributors (each with a diameter of 70 feet), an automatically activated standby power
unit, and all associated piping, valves and appurtenances to serve the Pebble Beach Condominiums, with
no discharge of wastes to the surface waters, pursuant to the renewal request received June 12, 1997, 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 October 31, 2002, shall void Permit
No. WQ0002128, issued May 30, 1995, 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 actions, including those
actions that may be required by the Division of Water Quality (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 assimilate the wastes and
may be rescinded unless the facilities are installed, maintained, and operated in a manner
which will protect the assigned water quality standards of the surface waters and ground
waters. The ponding of wastewater on the surface of the distribution field when the dosing
cycle commences shall be considered as evidence of failure of the soils to adequately
assimilate the wastewater. Additionally, such failure shall be interpreted as a violation of
this permit condition.

3. The residuals generated from these treatment facilities must be disposed in accordance with
General Statute 143-215.1 and in a manner approved by the Division.
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) 400 feet between high rate infiltration unit and any habitable residence or place of public
assembly under separate ownership or which is to be sold,
b) 200 feet between high rate infiltration unit and any private or public water supply
source and any streams classified as WS or B,
c) 200 feet from mean high water between high rate infiltration unit and any "SA" or "SB"
classified surface waters,
d) 200 feet from normal high water between high rate infiltration unit and any other
stream, canal, marsh, or coastal waters,
e) 200 feet from normal high water between high rate infiltration unit and any Class I or
Class II impounded reservoir used as a source of drinking water,
f) 200 feet between high rate infiltration unit and any other lake or impoundment,
g) 200 feet between high rate infiltration unit and any Drainage systems (ditches, drains,
surface water diversions, etc.) and from any groundwater lowering and surface
drainage ditches,
h) 100 feet between high rate infiltration unit and property lines,
i) 50 feet between treatment units and property lines, and
j) 50 feet between high rate infiltration unit and other treatment units and public right of
ways.
Some of the buffers specified above may not have been included in previous permits for
this waste treatment and disposal system. These buffers axe 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.

I I. OPERATION_ AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Water Pollution Control System Operator
Certification Commission (WPCSOCC), 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
WPCSOCC. The Permittee must also employ a certified back-up operator of the
appropriate type and grade to comply with the conditions of 15A NCAC 8A .0202. The
ORC of the facility must visit each Class I facility at least weekly and each Class lI, 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 15A NCAC 8A .0202.
3. The application rates for the high rate infiltration system shall not exceed 10 GPD/ft2.
4. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater outside of the high rate infiltration disposal area,
which result 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-
b. The rotary distribution fields shall be raked twice weekly during the months April through
October and once a week during the months of November through March.
7. The screenings removed from the wastewater treatment plant shall be properly disposed in
a sanitary landfill or by other means which have been approved by this Division.
8. Vegetative growth must be kept out of the rotary distribution areas at all times. All
vegetation must be removed manually so that minimal disturbance will occur to the disposal
area.
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 ensure that adequate aeration is provided. Records
of this 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.

III. MONITORING AND REPORTING REQUIREMENTS
1
2.
Any monitoring deemed necessary by the Division to insure surface and ground water
protection will be established and an acceptable sampling reporting schedule shall be
followed.
As an indicator of proper operation and maintenance, the facility shall produce an effluent
in compliance with the following limitations:
Parameter _ Monthly Ayeragea Daily Maximums
Flow 70,000 GPD
BOD5 (5-day, 20°C) 10 mg/l
NH3 as N 4 mg/1
TSS 20 mg/l
Fecal Coliform 14 per 100 mlb 43 per 100 ml
a Monthly averages for all but fecal coliform shall be the arithmetic mean of all samples
collected during the reporting period.
b Monthly average for fecal coliform shall be the geometric mean of all samples collected
during the reporting period.
c 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 long term holding pond for the following parameters:
Parameter
Sampling Point
Sam lin Frequency
Type of Sample
Flow
Influent or Effluent
Continuous
Recording
BOD5 (5-day, 20°C)
Effluent
*2/Month
Composite
NH3 as N
Effluent
*2/Month
Composite
TSS
Effluent
*2/Month
Composite
Fecal Coliform
Effluent of first pond
2/Month
Grab
Settleable Matter
Effluent
Daily
Grab
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.
** Triannually sampling shall be conducted during March, July and November.
If Groundwater sampling indicates or predicts problems with compliance with of the
Groundwater Standards, this permit will be modified to include additional and/or more
restrictive limitations.
4

3. Three (3) copies of all effluent monitoring data (as specified in condition III 2) on Form
NDMR-I shall be submitted on or before the last day of April, August and December. All
information shall be submitted to the following address:
NC Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
Post Office Box 29535
Raleigh, North Carolina 27626-0535
4_ A record shall be maintained of all residuals removed from this facility. The record shall
include the name of the hauler, the permit authorizing the disposal or a letter from a
municipality agreeing to accept the residuals, the date the residuals were hauled, and the
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;
e. Date and results of power interruption testing on alternate power supply; and
f. Dates fields were raked and arms inspected.
6. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone
number [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 renders the facility
incapable of adequate wastewater treatment, such as mechanical or electrical failures of
pumps, aerators, compressors, etc.;
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass
of all or any portion of the influent to such station or facility; or
d . Any time that self -monitoring information indicates that the facility is not in compliance
with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within five (5) days following first knowledge of the occurrence. This report must
outline the actions taken or proposed to be taken to ensu-re that the problem does not recur.
61

I V . GROUNDWATER REQUIREMENTS
1. Monitor wells MW-1, MW-2, MW-3 and MW-4 shall be sampled every March, July and
November for the following parameters:
Water Level pH
Chloride Total Dissolved Solids (TDS)
Fecal Coliforms Total Organic Compounds (TOC)
Nitrate (NO3) Ammonia Nitrogen
Total Phosphorous Sodium
Volatile Organic Compounds - In November only using one of the following:
Method 6230D - (Capillary -Column), "Standard Methods for the Examination of
Water and Wastewater," 17th ed., 1989.
If any volatile organic compounds are detected by method 6230D, then the Wilmington
Regional Office Groundwater Supervisor, telephone number [phone], must be
contacted immediately for further instructions regarding any additional follow-up analyses
required. The results of all initial and follow-up analyses must be submitted
simultaneously.
The measurement of water levels must be made prior to sampling for the remaining
parameters. The depth to water in each well shall be measured from the surveyed point on
the top of the casing.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to
provide the relative elevation of the measuring point for each monitoring well.
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/1, 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.
The results of the sampling and analysis must be received on Form GW-59 (Groundwater
Quality Monitoring. Compliance Report Form) by the Groundwater Section, Permits and
Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on or before the last
working day of the month following the sampling month.
3. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
4. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary
for the disposal system constructed prior to December 31, 1983 is established at either (1)
500 feet from the waste disposal area, or (2) at the property boundary, whichever is closest
to the waste disposal area. An exceedance of Groundwater Quality Standards at or beyond
the Compliance Boundary is subject to immediate remediation action in addition to the
penalty provisions applicable under General Statute 143-215.6A(a)(1).
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the
disposal systems midway between the Compliance Boundary and the perimeter of the
waste disposal area. Any exceedance of standards at the Review Boundary shall require
remediation action on the part of the permittee.

V . INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Pernttee 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 maintain 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 to the
Division or other permitting authority, upon request.
3. Any duly authorized officer, employee, or representative of the Division may, upon
presentation of credentials, enter and inspect any property, premises or place on or related
to the disposal site or facility at any reasonable time for the purpose of determining
compliance with this permit, may inspect or copy any records that must be maintained
under the terms and conditions of this permit, and may obtain samples of groundwater,
surface water, or leachate.
VI. GENERAL CONDITIONS
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other supporting
data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division 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).
6. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division 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 Comrr fission 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 seventh day of November, 1997.
NORTH C OLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0002128

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' RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: �� C� �c
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Owner or Contact Person:
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Mailing Address: P
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County: Cr,t- -�rR+
Telephone:
Present Classification; 7r:
New Facility
Existing Facility
NPDES Per. No. NCOO
Nondisc.
Per. No.WQ00o212'&
Health Dept.Per No.
Rated by: -IeJQ \NCSi
Telephone:
Date:
Reviewed by:
Health Dept.
Telephone:
Regional Office
Telephone:
Central Office
Telephone:
ORC:_�� c,a -•
Grade:
Telephone:
Check Classification(s):
Subsurface
Spray Irrigation
Land Application
Wastewater Classification: (Circle One) 1
11 111 1V
Total points: L4�
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SUBSURFACE Ct.ASSIFICATICN
(check all units that apply)
1_ septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. sand filters
5. grease trap/interceptor
6_oil/water separators
7. gravity subsurface treatment and disposal:
8. pressure subsurface treatment and disposal:
SPRAY IRRIGATION Ct ASSIFiCAT€oN
(check all units that apply)
1,
preliminary treatment (definition no. 32 )
2.
lagoons
3.
septic tanks
4.
pump tanks
5.
pumps
6.
sand filters
7.
grease traprnterceptor
8.
oil/water separators
9.
disinfectlon
10.
chemical addition for nutrient/algae control
11.
spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater In excess of these components shall
be rated using the point rating system and will require an operator with an appropriate dual certification.
LAND APPLICATIO NfRESiDUALS CLASSIFICATION (Appries only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACU Y CLAS&FiCAT[ON
The following systems shall be assigned a Class I classification, uaIj= the flow is of a significant quantity or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check 4 Appropriate)
1. Dil/water Separator Systems consisting only of physical separation, pumps and disposal:
2_Septic TanWBand Filter Systems consisting onfy of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -loop Recycle Systems:
5. Groundwater Remediation Systems consisting only of oillwater separators, pumps, air -stripping, carbon adsorption, disinfection
and disposal;
6. AquacuFture operations with discharge to surface waters;
7. Wafer Plant sludge handling and back -wash water treatment;
8. Seafood processing consisting of screening and disposal.
9. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified it permitted after July 1,
1993 or 4 upon Inspection by the Division, it is found that the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, in writing.

The following scale is used for rating wastewater treatment facilities: (circle appropriate pointy
ITEM POINTS
{ t) Industrial Pretreatment Units or Industrial Pretreatment Program (see dellnhion No. 33)...................................................4
(2) DESIGN
FLOW OF PLANT IN gpd (not applicable to non --contaminated cooling waters, sludge handling facilities for
water purification plants, totally closed cycle systgms(ses definition No. 11), and facilities consisting only of hem
(4)(d) or
Items (4)(d) and (11)(d)]
0 - 20,000................................................................................................................................................1
20,001 - 50,000....................................................................................................................................
50,001 - 100,000...................................................................................................................................3
100.001 - 250,000........................................................................................................................ ...........4
250,001 - 500,000.............................. ......................................._.......................................I....I...I..........1.5
500,001 - 1,000,000......................................................................._..........................................._............6
1.000,001 - 2.000.000......................................................................................................................I....10
2,000,001 (arid up) rate 1 paint additlonal for each 200,000 gpd capacity up to a maximum of .................30
Design Flow (gpd)
(3) PRELIMINARY,
(a)
UNiTSIPROCESSES (see definition No.32)
Bar Screens.............................................................................................................................................�
or
(b)
Mechanical Screens, Static Screens or Comminuting Devices..........................................................................2
(a)
Grit Removal ..............................................................................................................................................1
or
(d)
Mechanical or Aerated Grit Removal.............................................................................................................2
(4)
FbwkfeawringDevice .............:................... ..-.1
(f)
or
instrumented Flow Measurement...............................................................................................................2
(9)
Preaeratlon...............................................................................................................................................
(h)
influent Flow Equalization.........................................................................................................................
(1)
Grease or Oil Separators - Gravity.................................................................................................................
Mechanical..............................................................................._.................................................._........I....3
DissolvedAir Flotation ........................ ................................................ ............................................ ............ a
(])
Prechlorinatlon.........................................................................................................................................5
(4) PRIMARYTREATMENTLVrrTPRDCESSES
(a)
Septic Tank (see definition No. 43)............................................................................................................2
(b)
Imhoff Tank..............................................................................................................................................5
(c)
Primary Clarff€ers.........................................................................................................................................5
(d)
Settling Ponds or Settling Tanks for Inorganic Norrloxic Materials (sludge handling facilities for water
purification plants, sand, gravel, stone, and other mining operations except recreational activities such as gem
orgold mining)........................................................................................................................................2
(5) SECONDARY TREATMENT U I TSrPROCESSES
(a)
Carbonaceous Stage
(i) ABratlan-High Purfty Oxygen System...............................................................................
DiffusedAir System......................................................................................................14
Mechanical Air System (fixed, floating or rotor)...............................................................3
Separate Sludge Reaeratlon............................................................................................
(€f) Trickling Filter
HighRate.......................................................................................................................7
StandardRate...........................................,....................................................................5
PackedTower........................................................................_._......................................5
(III) ElMog€cal Aerated Flier or Aerated Biological Flner............................................................1 0
(Iv) Aerated Lagoons.........................................................................................................A 0
(v) Rotating Biological Contactors......................................................................................10
(VI) Sand Fillers -intermittent bioiogical..................................................................................2
Recirculatingbiological.....................................................................................................3
(vif) Stabilization Lagoons............................................................................ .......................5
(vill) C .........................................................................................................................
aril€Br
(fx) Single stage system for combined carbonaceous removal of SOD and nitrogenous removal by
nitrification (see definition No. 12)(Points for this item have to be in addition to hams
(5)(a)(1) through (5)(a)(viii),
ulllWng the extended aeratlon process (see delinhion No.3a).........................................(;N
utilizing other than the extended aeration process............................................................
(x) Nutrient additions to enhance BCD removal......................................................................5
(xl) Biological Culture ('Super Bugs')addition........................................................................5
(b)
Nitrogenous Stage
(1) Aeration - High Purty Oxygen System ....................................... ................... ..„........... ... 20
DiffusedAir Systsm................................................ ............._._.......................................1 0
Mechanical Air System (fixed, floating or rotor)..................................................................8
SeparateSludge Reaeratlon............................................................................................3
(II) Trickling Fllter-High Rate...................................................................................................7
StandardRate...............................................................................................................5
PackedTower.................................................................................................................5
(111) Biological Aerated Finer or Aerated Biological Filter .................... „....................................... 10
(€v) Rotating Biological Contactors......................................................................................10
(v) Sand Finer - intermhteril blotaglcal...................................................................................2
Recirculating biological..........................................e.........................................................3
(VI) Clarifier ............. ............................................................................................................... 5
(6) TERTIARY OR ADVANCED TREATMENT L€NITS(PRDCESSES.
(a)
Activated Carbon Beds -
withoutcarbon regeneration...................................................................................................5
with carbon regeneration.............................................................................................I.........15
(b)
Powdered or Granular Activated Carbon Feed-
Mthoutcarbon regeneration.. ............................................... . ............................................ 5
withcarbon regeneration .......................... ................................................... ....."........ - ...... 1.1 5
(c)
Air stripping..............................................................................................................................................5
(d)
Dennrification Process.................................................................................................4............................10
(a)
Electrodialysis............................................................................................................................................5
(f )
Foam Separation........................................................................................................................................5
(9)
ton Exchange............................................................................................................................................5
(h)
Land Application of Treated Effluent (see definition No. 22b) (not applicable for sand, gravel, stone
and other similar mining operations) by high rate Infittratlon...........„............................................................4
(1)
Microscreens...........................................................,..__.........4.................I......5
(()
Phosphorous Removal by Biological Processes (Sao deffnftfan No. 26).........................................................20
(k)
Polishing Ponds - without aeration ................ ............................... ........... ..... ............................................ 2
withaeration.................................................................................................................4

(1)
Post Aeration - cascade..............................................................................................................................0
diffusedor mechanical........................................................................................................2
(m)
Reverse Osmosis........................................................................................................................................5
(n)
Sand or Mixad•Media Filters - low rate ...................................... ...................................................................
I
highrate......................................................................
(o)
Treatment processes for removal of metal or cyan€de...................................................................................15
(p)
treatment processes for removal of toxic materials other than metal or cyanide .............................................. i s
(7)
SLUDGETREAiMENT
(a)
Sludge Digestion Tank - Heated (anaerobic) .... ................................................ _......................... _..........
....t
Aerobic.................... ..... ................. ....... ................................................ ... .... ........ .............................
5
�
Unheated(anaerobic)................................................................................................................................3
(b)
Sludge Stabiiization (chemical or thermal)....................................................................................................6
(c)
Sludge Drying Beds - Gravity......................................................................................................................2
Vacuum Ass'sted.......................................................................................................... ...................
........5
(d)
Sludge Elutriation.....................................................................................................................................5
(a)
Sludge Conditioner (chemical or thermal).....................................................................................................5
(1)
Sludge Thickener (gravity).........................................................................................................................5
(g)
Dissolved Air Flotation Unit [not applicable to a unit rated as(3)(i)).............................................................8
(h)
Sludge Gas Utilization (including gas storage).............................................................................................2
(1)
Sludge Holding Tank - Aerated .......... ................................................ ............................................. ........
....5
Nan-aerated.............................................................................................................................................2
(J)
Sludge Incinerator (not Including activated carbon regeneration)................................................................10
(k)
Vacuum Fitter, Centrifuge, or Filter Press or other similar dewatering devices...................................................10
(a)
RESIDUALS UTILIZATION/DISPOSAL (including incinerated ash)
(a)
Lagoons................................................................... ....
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land application permit
or€andf i Il permit.......................................................................................................................................
(c)
Dedicated Landf ll(burial) by the permittee of the wastewater treatment facility ..............................................
(9)
DiSI FECTICYV
(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 hem (3)0).
(5)(a)(xi),
(6)(a), (6)(b), (7)(b), (7)(e), (9a). (9)(b) or (9)(c) 5 points each:
List.............
.......... ........................................ ............................................. I., ....... .................
.................................................................................................................................. 5
........... ..................... ................................... ................................ ................. ..... I............ 5
........................................................................................................................5
(11 } MISCELLANEOUS UNITSrPROCESSES
(a) Molding Ponds. Holding Tanks or Settling Ponds for Organic or Toxic Materials including wastes from mining
operations containing nitrogen or phosphorus compounds in amounts significantly greater than is common
fordomestic wastewater............................................................................................................................4
(b) Effluent Row 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) ..................................
(d) Pumps...................................................................................................................................................
(0) Stand -By Power Supply ........... ...................... .......................... ........................................ I.......................
(f) Thermal PollulW Control Device............................................................................................................
TOTALPOINTS .............................. ................ I....................... ..
CLAS&FICAT1ON
.......... 5-25
lassII......................................................................................................26-50
......................................................................................... .............51-65
GassTV ....................................................................................................... 66- Up
Facilities having a rating of one through four points, inclusive, do not require a cenifled operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class If.
Points
Points
Points
Points
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Ctass 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class III.
D004 DEF1NUIONS
The following del;nitlons shall apply throughout this Subchaptar.
(1) Activated Carbon Beds. A physicat/chemical method for reducing soluble organic material from wastewater effluent; The column -type beds used In this
method will have a flow rate varying from two to eight gallons per minute per square toot and may be either uptlow or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant site;
(2) Aerated Lagoons. A basin in which all solids are maintained in suspension and by which biological oxidation or organic matter Is reduced through artificially
accelerated transfer of oxygen on a flow -through basis;
(3) Aeration. A process of bringing about intimate contact between air or high purity oxygen In a Ilquld by spraying, agitation or dlffuslon;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of t8 hours.
(4) Agriculturally managed she. Any site on which a crop Is produced, managed, and harvested (Crop Includes grasses, grains, trees, etc.);
(5) Air Stripping. A process by which the ammonium Ion Is Iirst converted to dissolved ammonia (pH adjustment) with fits ammonia then released to the
atmosphere by physical means; or other similar processes wNch remove petroleum products such as benzene, toluene, and xylens;
(6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the
absorbed impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary` effluent limits;
(8) Centrifuge. A mechanical device in which centrifugal -force is used to separate solids from liquids or to separate liqulds of different densitlas;
(9) Chemical Addhlon Systems- The addition of chemfcal(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment,
alkalinity control, etc.; the capability to experiment with different chemicals and different application points to achieve a spec'rric result will be considered one
system; the capability to add chemicals) to dual units will be rated as one system; capability to add a chemical at a different application points for different
purposes will result In the systems being rated as separate systems;
(10) Chemical Sludge Conditioning. The addition of a chemical compound such as little, ferric chfodde, or a polymer to wet sludge to coa;esce the mass prior to
its application to a dewatering device;
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing inorganic, non-toxlc materials from sand, gravel,
crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;
(12) Combined Removal of Carbonaceous BOO and Nitrogenous Removal by Nitrification- A single stage system required to achieve permit effluent limits on BOO
and ammonia nitrogen within the same biological reactor,
(13) Dechlorinatfon. The partial or complete reduction of residual chlorine In a ilquld by any chemical or physical process;
(14) Deniirfficat;on Process. The conversion of nitrate -nitrogen to nitrogen gas;