WQ0000224_Final Permit_19971202

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. John Shore, Jr., President
Point Emerald Villas Association
c/o Quadrant, Inc.
Post Office Box 4455
Emerald Isle, North Carolina 28594
Dear Mr. Shore:
LTI.KXAqT •
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December 2, 1997
Subject: Permit No. WQ0000224
Point Emerald Villas
Wastewater Rotary Distributor Facilities
Carteret County
In accordance with your application received July 31, 1997, we are forwarding herewith Permit
No. WQ0000224, dated December 2, 1997, to the Point Emerald Villas Association for the continued
operation of the subject wastewater rotary distributor facilities.
This permit shall be effective from the date of issuance until November 30, 2002, shall void Permit
No. WQ0000224, issued February 10, 1993, 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.
Sincerely
G-�
.,/—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 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
Carteret County
1001"M1,461
continued operation of approximately 475 linear feet of 6 inch gravity sewer, approximately 430 linear feet
of 8 inch gravity sewer, a 125 GPM pump station with dual pumps, high water alarms and standby
power, approximately 865 linear feet of 4 inch force main and a 52,950 GPD wastewater rotary distributor
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 with no discharge of wastes to the
surface waters, pursuant to the application received July 31, 1997, and in conformity with the project plan,
specifications, and other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until November 30, 2002, shall void Permit
No. WQ0000224, issued February 10, 1993, 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.

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 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.
H. 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 ()APCSOCC), 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 II, 111, 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.

The application rates for the high rate infiltration system shall not exceed 7 gallons per day
per square foot. The total volume of wastewater tributary to the high rate infiltration unit
rotary distributor shall not exceed 22,684 GPD. The application rates for the surface low
pressure pipe infiltration system shall not exceed 6.8 gallons per day per square foot. The
total volume of wastewater made tributary to the surface low pressure pipe infiltration field
shall not exceed 30, 270 GPD.
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.
6. 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.
14. Both trains of the existing dual train wastewater treatment facility must be utilized since
each has a design capacity of approximately one half the design flow capacity of the plant.
III. MONITORING AND REPORTING. REQUIREMENTS
1. 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.

2. As an indicator of proper operation and maintenance, the facility shall produce an effluent
in compliance with the following limitations:
Parameter Monthly Averaaea Daily Maximume
Flow 52,950 GPD
BODS (5 -day, 20°C) 10 mg/l
NH3 as N 4 mg/1
TSS 20 mg/1
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 disposal fields (rotary distributor and/or surface low pressure pipe
disposal fields) for the following parameters:
Parameter Sampling Point Sampling Frequency 'Type of Sample
Flow Influent or Effluent Continuous Recording
BODS (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.
Triannual sampling shall be conducted every 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.
3. Three (3) copies of all effluent monitoring data (as specified in condition III 2) on Form
NDMR-1 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

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 ensure that the problem does not recur.
IV. GROUNDWATER REQUIREMENTS
1. Within 60 days of permit issuance, the -two existing monitor wells (MW -102 and MW -103)
shall be abandoned in accordance with 15A NCAC .0113 (a)(2). A well abandonment record
(Form GW -30) shall be submitted for each well to the Wilmington Regional Office within 30
days of well abandonment.
2. Within 90 days of permit issuance, one monitor well shall be installed to monitor groundwater
quality. The new monitor well, designated as MW -5, shall be constructed such that the water
level in the well is never above or below the screened (open) portion of the well at any time
during the year. The general location and name for each well is marked on Attachment A.
Each monitoring well shall be located at the review boundary, constructed in accordance with
this permit, and approved by the Wilmington Regional Office.
3. All wells that are constructed for purposes of groundwater monitoring shall be constructed it
accordance with 15A NCAC 2C.0108 (Standards of Construction for Wells Other than Wate.
Supply) and any other state and local laws and regulations pertaining to well construction.
W

4. The Wilmington Regional Office, telephone number [phone], shall be notified at
least forty-eight (48) hours prior to the construction of any monitoring well so that an
inspection: can be made of the monitoring well location. Such notification to the regional
groundwater supervisor shall be made during the normal office hours from 8:00 a.m. until
5:00 p.m. on Monday through Friday, excluding state holidays.
5. Within 30 days of all well construction activities, a certification must be received from a
professional engineer certifying that the monitoring wells are located and constructed in
accordance with the Well Construction Standards (15A NCAC 2C) and this permit. This
certification should be submitted with copies of the Well Completion Form (GW -1) for
each well. Mail this certification and the associated GW -1 forms to the Permits and
Compliance Unit, Groundwater Section, P.O. Box 29578, Raleigh, NC, 27626-0578.
6. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall
submit a copy of the GW -1 Form (Well Completion Form) with the Compliance
Monitoring Form (GW -59) for that well. Compliance Monitoring Forms that do not
include copies of the GW -1 form will be returned to the permittee without being processed.
Failure to submit these forms as required by this permit may result in the initiation of
enforcement activities pursuant to NC General Statutes 143-215.6.
7. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two
original copies of a scaled topographic map (scale no greater than 1". 100') signed and
sealed by a professional engineer or a state licensed land surveyor that indicates all of the
following information:
a. the location and identity of each monitoring well,
b. the location of the waste disposal system,
c . the location of all property boundaries,
d. the latitude and longitude of the established horizontal control monument,
e. the relative elevation of the top of the well casing (which shall be known as the
"measuring point"), and
f. the depth of water below the measuring point at the time the measuring point is
established.
The survey shall be conducted using approved practices outlined in North Carolina General
Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56.
The surveyor shall establish a horizontal control monument on the property of the waste
disposal system and determine the latitude and longitude of this horizontal control
monument to a horizontal positional accuracy of +/- 10 feet. All other features listed in a.
through e. above shall be surveyed relative to this horizontal control monument. The
positional accuracy of features listed in a. through e. above shall have a ratio of precision
not to exceed an error of closure of 1 foot per 10,000 feet of perimeter of the survey. Any
features located by the radial method will be located from a minimum of two points.
Horizontal control monument shall be installed in such a manner and made of such
materials that the monument will not be destroyed due to activities that may take place on
the property. The map shall also be surveyed using the North American Datum of 1983
coordinate system and shall indicate the datum on the map. All bearings or azimuths shall
be based on either the true or NAD 83 grid meridian. If a Global Positioning System
(GPS) is used to determine the latitude and longitude of the horizontal control monument, a
GPS receiver that has the capability to perform differential GPS shall be used and all data
collected by the GPS receiver will be differentially corrected.
The reaps and any supporting documentation shall be sent to the Groundwater Section,
N.C. Division of Water Quality P.O. Box 29578 Raleigh, N.C. 27626-0578.

The new monitor well (MW -5) and the existing monitor wells MW -1 (formerly MW -101)
and MW -4 (formerly MW -104), depicted on Attachment A, shall be sampled initially after
construction and thereafter every March, July and November for the following parameters:
Water Level pH
Chloride Total Dissolved Solids (TDS)
Fecal Coliforms Nitrate (NO3)
Total Organic Compounds (TOC) Total Ammonia
Total Phosphorous
Volatile Organic Compounds - In November only using one of the following:
(A) Standard Method 6230D, PQL at 0.5 ug/L or less
(B) Standard Method 6210D, PQL at 0.5 ug/L or less
(C) EPA Method 8021, Low Concentration, PQL at 0.5 ug/L or less
(D) EPA Method 8260, Low Concentration, PQL at 0.5 ug/L or less
(E) Another method with prior approval by the Groundwater Section Chief
Any method used must meet the following qualifications:
(1) A laboratory must be DWQ certified to run any method used.
(2) The method used must, at a minimum, include all the constituents listed in
Table VIII of Standard Method 6230D.
(3) The method used must provided a PQL at 0.5 ug/L or less which must be
supported by laboratory proficiency studies as required by the DWQ
Laboratory Certification Unit. Any constituents detected above the MDL but
below the PQL at 0.5 ug/L must be qualified (estimated) and reported.
9. If any volatile organic compounds are detected by the methods listed, 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.
10. 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.
11. If TOC concentrations greater than 10 mg/i are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mg/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.
12. 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.
13. 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).
7

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.
14. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
V. INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities
to prevent malfunctions and deterioration, operator errors and discharges which may cause
or lead to the release of wastes to the environment, a threat to human health, or a nuisance.
The Permittee shall 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
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 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 surface low pressure pipe field covered by this permit renewal
are individually not capable of handling all of 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 low pressure pipe disposal field
(30,270 GPD).
Permit issued this the second day of December, 1997.
NORTH C LINAONMlNTAL MANAGEMENT COMMISSION
A. Preston Howard, Jr., P.E. Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0000224

M
POINT EMERALD VILLAS
ROTARY DISTRIBUTOR SYSTEM
CARTERET COUNTY
PERMIT NO. WQ0000224
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p.'nY%�' SU.75Urface treatment and disposal:
E. pressare subsuna ;e treatment and disposal:
SPPAY IFS=G47)ON CWASSIFr_ATF_N
(check all units that apply)
1. 1/ preliminary treatment (definition no. 32 )
2. lagoons
3. wtfc tanks
4—pump tanks
5. pumps
6. sand filters
7. urease trapinterceptor
s. oillwater separators
9. ✓ disinfection
10, chemic:al addition for nutrientlalaae control
11. spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater In excess of these components shc16
be rated using the point rating system and will require an operator with an appropriate duel cerci€icafien.
LAIN^ CLASSIFICATION (Applies only to permit holder)
i. Lan, a=p;icafion of biosolids, residuals or contaminated soils on a desionaied site,
WAS77�.'A i _ti i rt A iMRi FACU Y CLASSIFfCKMZ 4
Tne fof,owinc systems shat' tie assigned a Class I ctassifi:ztion, vac the flow is o' a sianifi can. quantity or the technology is unusualiy
compiex, to require consideration by the Commission on a case -by -=se basis: (Check N Appropriate)
Oilfwate• se�,,arator Systems consisting only of physical separation, pumps anc disposal;
Senlic Tani:'Sand Filer Systems consisting only of septic tanks, dosing apparatus, pumps,sand ffhers, disinfection
ane dire discharge;
:.spoor 5ys�ems consisting only of preiiminary treatment, lagoons, pumps, disin€e�ion, necessa-y chem'Izal treatment for
aipae or nutrient control, and direct discharae;
4. Ciosed-loop Recyue Systems:
E Groundwaier Remediation Systems consisting only of oflwaler separators, pumps, ai* siripoinc,, cz" r agsorption. disnler Icn
and disa�s:
c". Aquazullure operztions with discharge to surface waters;
7.—Water Plant sludge handling and back -wash water treatment;
E Seaiood processing consistino of screening and disposal.
Si 7a+E ;z^sii} dis-F+ar_ing systems, with the exception o' Aerobic Treatment Unhs, wil: be, classified r perm"ier< a;tel
_mac o- h u. insxMion by the Division, is is found that the system is no: beinc adenuaiek operates v main ained. Suc.!
s%vtems wilt b� ncOied of. the ciassffication or rec.'assiiicelion by 1he Commission; in writing.

The 1c lowing scale is used for rating wastewater treatment facilities: (circle appropriate' points)
ITEM POINTS
(1) Industrial Prelrealmerti Units or Industrial Pretreatment Program (see definhion No. 33) ...................................................4
(2) DESIGN
FLOW OF PLANT IN gpd [not applicable to non-contarninated cooling waters, sludge handling facilities tot
water purfficalion plants, totally closed cycle sysianls(see definition No. 11), and ta`ilmes consisting only o1 fism
(4)(d) or
Items (4)(d) and (11)(d)]
0 - 20,000................................................................................................................................................1
20,001 - 50,000......................................................................................................................................
50,001 - 100,000.................................................................................................................................
.. CP
100,001 - 250.000..................................................................................................................................A
250,001 - 500,000_.................................................................................................................................5
500,001 - 1.000,000 ................... ......... _...................................................... ............................................ 8
11000.001 - 2.000.000...........................................................................................................................10
2,000,001 (and up) rate t point additional for each 200,000 gpd capachy up to at maximum at .................30
Design Flow (gpd)
(3) PRELIMINARY
(a)
uN1TStPROCESSES (see deflngion No.32)
Bar Screens........................................._............................,..._._......_..........._..................................jo
or
(b)
Mechanical Screens, Static Screens or Comminuting Devices ......................................... ................................ -2
(c)
Grfi Rern mal............._...............................,.._..................................................................__...._.....1
or
(d)
Mechanical or Aerated Grit Removal ................ ................. .......................................................... .................. 2
(a)
Flow MeasuritgDevice................................................................................................................................1
or 0(t) Instrumented Flow Measurement ...... ....................................................................................... ..................
(g)
Preaeratlon...............................................................................................................................................•2
;h)
InfluerA Flow Equalization ... ........... ................... .......... ....................... ..... ....................... .......................... jo
(i]
Grease or Oil Separator - Gravity ...............................................
Mechanical................................................................................................................................................3
Dh-.WNed Air Flotation...............................................................................................................................5
(])
Prechlorination.........................................................................................................................................5
(4) PRIMARYTREATMSJT LINITS/PFCfCESSES
(a)
Septic Tank (see definition No. 43)............................................................................................„........„....2
(b)
Imhoff Tank .......................... ..... .... ........ .......... ..................... .......................................................„.........._5
(c)
Primary Clarffiefs............................................................ ....5
(d)
Settling Ponds or Settling Tanks for inorganic Non-toxic Materials (sludge handling facilities for water
purification pianos, sand, gravel, aoris, and other mining operafior>s except recreational acltvitisi such as gem
orgold mining)....................................................................
(5) SECONOARY TRi=ATMENT LNrrS POCESSFS
(a)
Carbonaceous Stage
(1) Aeratlon-High Purity Oxygen System ........... .................... .............................. ................
DiffusedAir System.....................................................................................................
Mechanical Air System (fixed. floating or rotor) .............. ............................................... ... S
Separate Sludge Reaeration ............................................................................................3
(11) Trickling Finer
HighRata.......................................................................................................................7
StandardRate ........ ............................... .......... .............. _.......... ........................ ........... .5
PackedTower ........ ........................................................................................ .._..............
(Iii) Biological Aerated Finer or Aerated Biological Fitter ......... .................... ..............................1 0
(iv) Aerated Lagoons ..........................................................................................................10
(v) Rotating Biological Corrtaaons....................................................................................10
(vi} Sand Filters -intermittent biolcglcal.......................„....................................................,....2
Recirculatingbiological....................................................................................................3
(vii) Stabilization Lagoons..................................................................................................
(vili) CkirfFier................................................................................................................
(1x) Sirtgle supe system for irombfned carbonaceous removal of BOD and nitrogenous removal by
nitrification (see definition No. 12)(Points for this item have to be in addition to items
(5)(a)(1) through (5)(a)(vifi),
ullltzing the extended aeration process (see dellnhion No.3a) .........................................
utilizing other than the extended aeration process.......................................................„,.,t3
(x) Nutrient additions to enhance BOD remova).....................................................................5
(X 1) Biological Culture ('Super Bugs')addhiort.... ............ .......................................................5
(b)
N1troQenous Stage
(1) Aeration - High Purity Oxygen System.. ............................. .............. . . ..................... 20
DiffusedAir Sysiem.......................................................................................................1 0
Mechanical Air System (fixed, floating or rotor)..........„ . .......................... ........ .............. 8
Separate Sludge Reaeration........................................................................................_..3.
(11) Trickling Filter -High Rate...................................................„............„....„.........................,7
Standard Rate........................................................................._._._......... ..... ..5
PackedTower............................................................................................»..................5
(til) Biological Aerated Ther or Aerated Biological Fifier...„. „.........._.„...., . „.»...»„. -__..1 0
(IV) Rotating Biological Contacyors...............................................................—_....................10
(v) Sand Fitter - Intenninenls biological...................................................................................2
Recirculating biological...........................................„....................................................„.3
( VI) Clad er.............................................................................................5
(6) TEMIARYORADVANCEDTREATMi3VPrUNITSPR7CESSES
(a)
Activated Carbon Bads-
whhout carbon regenerailon....................................................................................................5
Withcarbon regeneration.................................................... ................. .__„...... .„................ 15
(b)
Powdered or GranWar Activated Carbon Feed-
eerwithout
withoutcarbon regeneration............................................„..............„...................................5
rvtth carbon regeneration ............... .................................... ..................... ....... „................. 15
(c)
Air stripping......................................................................................................................................5
(d)
Denitrification Process...„.........................................................................«................„._.............„...........10
(e)
Elecirodlaiysls................................. ....................,...............................„..........................„.....................,'5
(f)
Foam Separation ......................................... ............................................ ...... ,..-................ ,......,.............5
(g)
ton Exchange... .... ... ... ............................. ..... .........„.........„.5
(h)
Land Application of Treated Eftiuert (see definition No. 224) (not applicable for sand, gravel, stone
and other simlfar mining operations) try high rite infiftration... ....... ........... ................................................Q
(1}
Microscreens................. ......., ............................................. ..... .5
(j)
Phosphorous Removal by Biological Processes (See detlnitlon No. 2S) ...........................................„.:... ....2 0
(k)
Polishing Ponds - wiilxiut aeration............................................................................................................2
withaeratlon,..................................................„.„....„............._-............_.......................5

C�ass. I...........................................................................................................5-25 Points
ClassII................................................................................................ ....26.50 Points
��..........................'
................,.................................................
IV ..................... .......- ......66 -Up Points
-------------------------------------------------------------
Facilities having a rating of one through four points, inclusive, do not require a certified operator.
Facilities having an activated &fudge process wilf be asslgned a minimum c"ifscation of Class 11.
Facilities having treatment processes for the removal o; metal or cyanide will be assigned a minimum classilication of Class 11.
Facilities having trswment processes lot the biological removal of phosphorus will be assigned a minimum classif"Iion of Class Ill,
ZC064 DE •INf 101`4S
The following definitions shall apply throughout this Subchapter,
(1) Anivaled Carbon Beds. A physicallchemical method for reducing soluble organic maferfal from wastewater effluent; The mlu^r,-type beds used In this
method wiii have a clow rata varying from two to eight gallons per minute per square toot and may be etcher upflow or downflcw c:9roon beds. Carbon may or
may not be regenerated on the wastewater 1teslmeni plant she;
(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 (low -through basis;
(3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen In a liquid by spraying, aghallon or diffusion -,(3a) Extended
Aeration. An activated sludga process utilizing a minimum hydraulic detention Sime of 16 hours.
(4) Agriculturally managed Life. Any she 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 first converted to dissolved ammonia (pH adjustment) wish the ammonia than released to the
atmosphere by physical maarC or other similar processes which remove petroleum products such as benzene, toluene, and xylene;
(6) Carbon Regeneration The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatlfze and oxidize the
absorbed impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment des#fined to achieve 'secondary' effluent Ilmhs;
(8) Centrifuge. A mechanical device In which centrifugal force is used to separate solids from liquids or to separate liquids of drfierent deftshlas:
(9) Chemical Addhldri Systems- The addition of chemical(s) to wastewater at an application point for purposes of Improving sol$ds removal, pH adjustment,
alkakirlty control, etc.; the capablltty to experiment with ditferenl chemicals and drilerem appticalion points to achieve a specifrc result will be considered one
system; the capability to add chemicals) to dual units will be rated as one system; capabilhy to add a chemical at a different application points for different
purposes will result in the syslems being rated as separate systems;
(10) Chemiral Sludge Conditicning. The addition of a chemical compound such as lime, ferric chloride, or a polymer to *of sludge to coalesce She mass prior tc
Its application to a dewatering device;
(11) Closed Cycle Systems. Use of holding ponds or holdng tanks for containment of wastewater containing Inorganic, non-toxic materlals from Land, gravel,
crushed stone or other sim;Lar operations. Such systems shall carry a maximum of two points regardless of pumping facilhiss or any other appurtenances;
(12) Combined Removal of Carbonacsous BOD and Nitrogenous Removal by Nitrlfiralion• A single stage system required to achieve pemth effluent limits on BOD
enol ammonia nhrogen within the same blologi;al reactor,
(13) Dechlorination. The panial or complete reduction o1 residual chlorine in a Ilould by any chemical or physical process;
(14) Derthrifi:ation Process. The conversion of nhrate-nitrogen to nitrogen gas;
IF'os!
As -al= - Cascade... ............... .......... ............. _ ......... ................... ..................................................
0
dlllusedor mechanical........................................................................................................2
(m)
Reverse Osmosis ............................. ................... .......................................................................................5
.
( n)
Sand or Mixed -Media Filters - low rale.........................................................................................................
highrate....................................................................
(a)
Treatmens processes tot removal of metal or cyanide...................................................................................1
5
( P )
treatment processes tot removal of toxic materials other than metal or cyanide......... .....................................
Is
(7)
S:1 )GE
TREATMENT
(a)
Siudge Digestion Tank • Healed (anaerobic)...............................................................................................10
....................................................
Aerobic...................................................I........11...........11..............5
Unheated(anaeroblc)................................................................................................................................3
(b)
Sludge Stabilization (chemical or thermal)...................................................................................................5
(r)
Sludge Drying Beds - Gravity......................................................................................................................2
VacuumAssisted ................................................... ...................................................................................5
(d}
Sludge Elutnation.....................................................................................................................................5
(e)
Sludge Conditioner (chemical or thermal)....................................................................................................5
(I }
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)............................................................................................
(1)
Sludge Holding Tank - Aerated..................................................................................................................
Non-aerated .....................................................................1111 _ ..
(jJ
Sludge Incinerator (not Including activated carbon regeneration)................................................................to-
0_(k)
(k)
Vacuum Filler, Centrifuge, or Filter Press or other similar dewatering devices...................................................1
0
(8)
RESIDUALS LITILIZATION/DISPOSAL (including incinerated ash)
(a)
Lagoons................................................................................
2
(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
orlandfill pemtit............................................... ........................................................................................�
(c)
Dedicated Landlill(budal} by the permltlee of the wastewater treatment lacilky..............................................5
(s)
DCTknt
(a)
Chlorination ................................ .............................................................................................................10
( b )
Dechlorination.................................................................. ........ .................................................................
5
(c)
Ozone......................................................................................................................................................5
(d)
Radiation.................................................................................................................................................5
(1 0)
CHEMICAL ADDITION SYSTEM($) ( see definition No. 9) jnot applicable to chemical addhlorss rated as horn (3)p),
(5)(a)(xi),
(6)(a), (6)(b), (7)(b), (7)(e), (4a), (9)(b) or (9)(c) 5 points each:
List.....................................................................................................................................5
...........................................................................................................................".­....5
............................................................................................................... . ...................
5
......................................................................................................................5
(1 1)
M&CISLANEOIIS UNITS/?ROCESSES
(a)
Holding Ponds, Holding Tanks or Sonling Ponds for Organic or Toxic Matierials Including wastes from mining
operations containing nitrogen or phosphorus compounds in amounts significardly greater than is common
fordomestic wastewater ........................................ ...................................................................................A
(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 Inharertl In land application systems)........... .....................
(d)
Pumps..................................................................:.........................................................................I.......
(e)
Stand -By Power Supply...........................................................................................................................
(f)
Thermal Pollution Control Device..............................................................................................................
TOTAL POINTS...................................................................1111... S
CLASS IFICATCN
C�ass. I...........................................................................................................5-25 Points
ClassII................................................................................................ ....26.50 Points
��..........................'
................,.................................................
IV ..................... .......- ......66 -Up Points
-------------------------------------------------------------
Facilities having a rating of one through four points, inclusive, do not require a certified operator.
Facilities having an activated &fudge process wilf be asslgned a minimum c"ifscation of Class 11.
Facilities having treatment processes for the removal o; metal or cyanide will be assigned a minimum classilication of Class 11.
Facilities having trswment processes lot the biological removal of phosphorus will be assigned a minimum classif"Iion of Class Ill,
ZC064 DE •INf 101`4S
The following definitions shall apply throughout this Subchapter,
(1) Anivaled Carbon Beds. A physicallchemical method for reducing soluble organic maferfal from wastewater effluent; The mlu^r,-type beds used In this
method wiii have a clow rata varying from two to eight gallons per minute per square toot and may be etcher upflow or downflcw c:9roon beds. Carbon may or
may not be regenerated on the wastewater 1teslmeni plant she;
(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 (low -through basis;
(3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen In a liquid by spraying, aghallon or diffusion -,(3a) Extended
Aeration. An activated sludga process utilizing a minimum hydraulic detention Sime of 16 hours.
(4) Agriculturally managed Life. Any she 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 first converted to dissolved ammonia (pH adjustment) wish the ammonia than released to the
atmosphere by physical maarC or other similar processes which remove petroleum products such as benzene, toluene, and xylene;
(6) Carbon Regeneration The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatlfze and oxidize the
absorbed impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment des#fined to achieve 'secondary' effluent Ilmhs;
(8) Centrifuge. A mechanical device In which centrifugal force is used to separate solids from liquids or to separate liquids of drfierent deftshlas:
(9) Chemical Addhldri Systems- The addition of chemical(s) to wastewater at an application point for purposes of Improving sol$ds removal, pH adjustment,
alkakirlty control, etc.; the capablltty to experiment with ditferenl chemicals and drilerem appticalion points to achieve a specifrc result will be considered one
system; the capability to add chemicals) to dual units will be rated as one system; capabilhy to add a chemical at a different application points for different
purposes will result in the syslems being rated as separate systems;
(10) Chemiral Sludge Conditicning. The addition of a chemical compound such as lime, ferric chloride, or a polymer to *of sludge to coalesce She mass prior tc
Its application to a dewatering device;
(11) Closed Cycle Systems. Use of holding ponds or holdng tanks for containment of wastewater containing Inorganic, non-toxic materlals from Land, gravel,
crushed stone or other sim;Lar operations. Such systems shall carry a maximum of two points regardless of pumping facilhiss or any other appurtenances;
(12) Combined Removal of Carbonacsous BOD and Nitrogenous Removal by Nitrlfiralion• A single stage system required to achieve pemth effluent limits on BOD
enol ammonia nhrogen within the same blologi;al reactor,
(13) Dechlorination. The panial or complete reduction o1 residual chlorine in a Ilould by any chemical or physical process;
(14) Derthrifi:ation Process. The conversion of nhrate-nitrogen to nitrogen gas;

"5' Eiectrod.alys:s. Process for removing lonlzed sifts from water through the use of fon•seieaive Ion exchange membranes;
,16) Fiher Press A process operated mechanically for parllally ciewaiahrg sludge;
(17) Foam Separation. The planned iroihing of wastewater or wastewater efUuenl as a means of removing excessive amounts of detergeril materials Ihrouph
the muoductfon of air in the form of tine bubbles; also called loam fractionation:
(181 Grit Removal. The process of removing grit and other heavy mineral matter from wastewater;
(19) ImhO!t Tarns. A deep Iwo story wastewater tank consisting of an upper sedtmerllalion chamber and a lower sludge digestion chamber.
(26) Insirumentnd Fiov, Measuremant. A device which indicates and records rate of flow;
(21) ion Exchange. A chemical process in which ions Irom two differ" molecules are exchanged;
(22) Lend application:
(a) Sludge Disposal. A Erna; sludge disposat method by which wet sludge may be applied to land either by spraying on the surface or by subsurface injection
O.S., chts.8' ,Plow); (not applicable for types of sludge described In (11) of this Rule);
(b) Treatec Eflluenl. Tha process at spraying treated wastewater onto a land area or other methods of application of wastewater orrto a land area as a
mearis of final disposal or treatment;
{23) Mrroscresn, A low speed, continuously back washed, rotating drum liher operating under gravity conditions as a polishing method for removing
suspended solids from efiluerY;
(24) NitWicaUon Process. The biochemical conversion of unoxidized nitrogen (ammonia and organic nitrogen) to oxidized nitrogen (usually nitraiel;
(25) Norogenous Stage. A separate stage of wastewater trealmenl designed for the specific purpose of converting ammonia narogan to nitrate nitrogen;
(26) Phosphals Removal, Biological, The removal of phosphor s. from wastewater by an oxWanoxic process designed to enhance luxury uptake of phosphorus
by the microorganisms;
(27} Polishing Pond. A holding pond following secondary treatment whit sufficient detention time to allow settling of finely suspended solids;
(28) Post Aera!ion. Aeration following conventional secondary ireatmerii units to increase effluent D.O. or for any other purpose;
(29) Post Aeralion. (Cascade) A polishing method by which dissolved oxygen is added to the elfluert. by a nonmechanical, gravity means of flowing down a
series of steps or weirs; The flow occurring across the steps or weirs moves in a fairly thin fayer and the operation of the cascade requires no operator
adjustment; thus, zero points are assigned even though this is an essential step to meeting the limits of the discharge permit
(30; Powdered to Granular Activated Carbon Feed. A biophysical carbon process that utilizes biological activity and organic at=rpfion by using powdered or
granular acttva;ed carbon; Virgin or regenerated carbon is teed controlled into the system;
(31) Praaeralion. A tank constructed to provide aeration prior to primary treatment;
(32) Preliminary Unes. Unit operations in the treatment process, such as screening and comminution, that prepare the liquor for subsequent major operations;
03) Industrial Pretreatment.
(a) Pre-treatment Unit, industrial. The conditioning of a waste at its source before discharge, to remove or to neutralize substances injurious to sewers and
trealmert processes or to effec', a partial reduction in load on the treatment process which is operated by the same governing body as the wastewaler
lrea;meni plarit being rated;
b) Pre-Irsalment Program, Industrial' - must be a State or EPA required program to receive points on the rating sheet;
(34) Primary Clarifiers, The first settling tanks through which wastewater is passed in a treatment works for the purpose of removing settleable and suspended
solids and BCD which is associaied.with the solids;
(35) Pumps. All influent, effluent and in -plait pumps;
(36) Radiation. Disinfection or sterilization process utilizing devices emitting ultravio3el or gamma rays;
(37) Reverse Osmosis. A treatment process In which a heavy contaminated liquid is pressurized through a membrane forming nearly pure liquid Irse from
suspended solids;
(38) Rotating Biological Contractors. A fixed biological growth process in which wastewater (lows through tanks In winch a series of partially cubrrerged circular
surfaces are Totaled;
(38) Sand f=ilters:
(a) Intermlient Biological, Filtration of effluent following septic tanks, lagoons, or some other treatment process in which further biodecomposhlon is
expecied to produce desired etiluenlsi Hydraulic loading rates on these iihom are computed in gpd/ac and have a resulting low gprrvsi (iess than one);
b) %circulating biological . the same type of sand fiber as defined in Subparagraph (3g) (a) of this Ruie with the added capabilny to recycle effluent back
through the sand liner
(40; Sand or Mixed -Media Finers. A polishing process by which effluent limits are achieved through a further reduction o1 suspended solids;
(a) low rale — gravhy, hydraulically loaded liher with loading rates In the one to three gpnVsl range;
(b) high rate -- a pressure, hydraull:ally loaded filter with loading rales in the live gprVsf range; At any fate, the loading rate will exceed three gpnrl
(41) Secondary Clarifiers. A tank which follows the biological unh of treatment plant and which has the purpose of removing sludges associated with the
biological Ireatrment urihs;
(42) Sel le Sludge Reaeration. A pan of the contact stabilization process where the activated sludge is transferred to a tank and aerated belore returning It
to ins conic= basin; `
(43) Septic Tank A single -story settling tank in which settled sludge is in contact with the wastewater flowing through the tank: shall not be applicable for
septic;ahk systems serving single family residences having capacity of 2,000 galions or iess which discharge to a nitrification field;
(e.4) 9lu me Digestion The process by which organic or volatile matter and sludge is gastfied, liquefied, mineralized or convened into more stable orgastic matter
tril the activity of Iw'tng organisms, which Includes asrated hosting tanks;
(45) Sludge Drying Beds. An area comprising natural or arlfficial layers of porous materials Upon which digested sewage sludge is dried by drainage and
evaporation:
(46) Sludge Elulraficn. A process of sludge conditioning In which certain constituentS are removed by surwessive washings with fresh water or plan; effluent;
(47) Sluoge Gas Lrilizaiiort. The process of using sewage gas for the purpose of heating buildings, driving engines, etc.;
(43) Sludge Holding Tank (Aerated and Nonaerated). A tank ulifized for small wasiawwer treatment plants not contalning a digester in which sludge may be
real lresh, and auAematanl withdrawn prior to a drying method (i.e. sludge drying beds); This may be done by adding a small amount of air simply to keep the
slucga fresh, but not necessarily an amount that would be required to achieve stabifi~ation of organic matter. A nonaerated tank would simply be used to
decant sludge prior to dewatering and would not allow long periods (several days of detention) without resulting odor problems;
(49) Sludge Incinerators. A furnace designed to bum sludge and to remove all moisture and combuslibls mater;ais and reduce the sludge to a sterile ash;
(561 Sludge Stabilization (Chemical or Thermals A pracass to make tr"ad sludge less odorous and putrescible, and to reduce the pathogenic organism
content; This may be done by pH adjustment, chlorine dosing, or by heat treatment;
(51) Sludge Thickener. A type of sedimentation lank In which the sludge Is permitted to settle and thicken through agitation and gravity;
(52) 5iabil;'zalion Lagoon. A Ips of oxidation Lagoon in which biological oxidelaicri o1 organic matter is efiecled by natural transfer of oxygen to the water from
air (nol a polishing pond);
(53) Sand -Sy Power Supply. On she or portable electrical generating equipment;
;541 Salic Screens. A stationary screen designed to remove solids, including norrbiodegradable particulate (ficaiable solids, suspended solids and SOD
reduction) from municipal and industrial wastewater treatment systems;
(55) 1 ertiary Treatment. A stage of treatment following secondary which is primarily for the purpose of effluern polishing; A settling lagoon or card or coal filter
might be employed for this purpose;
(56) Thermal Pollution Conlrof Device. A device providing for the transler of head from a huld flowing In tubes to another fluid outside the tubes, or viae versa;
or other means of regulating liquid temperatures;
(57) Thermal Sludge. Conditioner. A condilioning process by which heat Is added for a protracted period of time to Improve the dewalerabllity of sludge by the
solubilizimg and hydraulizing of the smaller and more highly hydrated sludge panicles;
(58) Toxic Malerals. Those wastes or combinations of wastes, Inclvdirg disease -causing agents which atter discharge and upon exposure, Ingestion, Inhalation
or assimilation into " organism, either directly from the environment or indirectly by ingestion through food chains, will cause death, disease, behavioral
abnormalities, cancer, genetic mutations, physiological malfunctions (including rr eunctions in reproduction) or physical deformations, In such organisms or their
offspring; Toxic materials include, by way of illustration and not limitation: lead, cadmum, chromium, mercury, vanadium, arsenic, zinc, onho-nitro-chdorobeill
(ONCE), pclychlorinaied biphenyls (PCBs; and dichlorodiphenyl trlchloroethane (DDT); and any other materials that have or may hereallsr be determined to have
toxic properties;
(5g) Trickling Fifter. A bblogicaf treatment ur9l conwsting of a material such as broken stone or rock over which wastewater is distributed; A high rate trickling
fiber Is one which operated it between 10 and 30 mgd per acre. A low rate trickling lifter is one which is designed to operate at one to four rtgd per acre:
(6vi Trickling F^er (Packed Tower), A plus flow type of operation In which waslewalar tion, down through svccroshve Sayers of media or filtrate material; Organic
m;radal Is removed cortlnually by the active biological fixed growth In each sucizessive layer. This method may produce 'secondary' quality effluent, or may be
adapted to produce a nitrified effluent;
(61) Vacuum Fifter, Centrifuges, or Filter Presses Devises which are designed 10 remove excess water from either digested or undigested sludge prior to disposal
or further treatment.