WQ0002571_Final Permit_19970303

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
April 3, 1997
Mr. Bobby F. Williams, Owner
164 Harris Creek Road
Jacksonville, North Carolina 28540
�EHNFi
Subject: Permit No. WQ0002571 Modification
Village Oaks Mobile Home Park
Wastewater Collection & Treatment
Spray Irrigation Disposal
Onslow County
Dear Mr. Williams:
In accordance with your application received February 10, 1997, we are forwarding herewith
Permit No, WQ0002571 dated April 3, 1997, to Mr. Bobby F. Williams for the continued operation of the
subject wastewater treatment and spray irrigation facilities. This permit modification is to reflect the change
of ownership of the subject facilities, from Mr. Edward E. Brown to Mr. Bobby F. Williams.
This permit shall be effective from the date of issuance until August 31, 1999, shall void Permit
No. WQ0002571 issued September 19, 1994, 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 Mr. John Seymour at
[phone] extension 546.
Sincerely,
C6-�f
{,�A. Preston Howard, Jr., P.E.
cc: Onslow County Health Department
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% past -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SPRAY IRRIGATION 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
Mr. Bobby F. Williams
Onslow County
FOR THE
continued operation of a 13,200 GPD spray irrigation treatment and disposal facility consisting of
approximately 1,210 linear feet of 6 inch gravity sewer and 210 linear feet of 8 inch gravity sewer; a
534,200 gallon facultative lagoon, a tablet chlorinator, a flow measuring device, a 319,400 gallon storage
lagoon, a 178 GPM pump station with a variable level suction system, a force main and distribution
system, a 178 GPM sprinkler system on a 3.6 acre spray site, a wooden fence approximately eight (8) feet
in height around the lagoons, a two (2) strand barbed wire fence around the spray field, and the associated
piping, valves, controls, spray nozzles, alarms and appurtenances to serve the Village Oaks Mobile Home
Park, with no discharge of wastes to the surface waters, pursuant to the application received February 10,
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 August 31, 1999, shall void Permit
No. WQ0002571 issued September 19, 1994, and shall be subject to the following specified conditions
and limitations:
I. PERFORMANCE STANDARDS
The spray irrigation facilities shall be effectively maintained and operated at all times so that
there is no discharge to the surface waters, nor any contamination of ground waters which
will render them unsatisfactory for normal use. In the event that the facilities fail to
perform satisfactorily, including the creation of nuisance conditions or failure of the
irrigation area to adequately assimilate the wastewater, the Permittee shall take immediate
corrective actions including those actions that may be required by the Division of Water
Quality, such as the construction of additional or replacement wastewater treatment and
disposal facilities.
2. 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.
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 North Carolina Division of
Water Quality.

4. Diversion or bypassing of the untreated wastewater from the treatment facilities is
prohibited.
5. The following buffers shall be maintained:
a) 400 feet between wetted area and any residence or places of public assembly under
separate ownership,
b) 150 feet between wetted area and property lines,
c) 100 feet between wetted area and wells,
d) 100 feet between wetted area and drainageways or surface water bodies,
e) 50 feet between wetted area and public right of ways,
f) 100 feet between wastewater treatment units and wells, and
g) 50 feet between wastewater treatment units and property lines.
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
spray irrigation 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.
II. QPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202.
3. A suitable vegetative cover shall be maintained.
4. Irrigation shall not be performed during inclement weather or when the ground is in a
condition that will cause runoff.
Adequate measures shall be taken to prevent wastewater runoff from the spray field.
6. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
7. The application rate shall not exceed a cumulative loading of 52.0 inches over any twelve
(12) month period at an instantaneous application rate not to exceed 0.25 inches per hour.
8. No type of wastewater other than that from Village Oaks Mobile Park shall be sprayed onto
the irrigation area.
9. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
2

10. Public access to the land application sites shall be controlled during active site use. Such
controls may include the posting of signs showing the activities being conducted at each
site.
11. Freeboard in the facultative lagoon shall not be less than two feet at any time.
III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue analyses)
deemed necessary by the Division of Water Quality to insure surface and ground water
protection will be established and an acceptable sampling reporting schedule shall be
followed.
2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater
disposed. These records shall include, but are not necessarily limited to, the following
information:
a. date of irrigation,
b. volume of wastewater irrigated,
c. field irrigated,
d. length of time field is irrigated,
e. continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each
field,
f. weather conditions, and
g. maintenance of cover crops.
3. The effluent from the subject facilities shall be monitored by the Permittee at the point prior
to irrigation every march, July, and November for the following parameters:
BOD5 TSS
Fecal Coliform pH
NH3 as N
4. Three (3) copies of all operation and disposal records (as specified in condition III 2) on
Form NDAR-1 shall be submitted on or before the last day of the following month. Three
(3) copies of all effluent monitoring data (as specified in condition III 3) 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
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
5. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone
number 910/ 395-3900 as soon as possible, but in no case more than 24 hours or on the
next working day following the occurrence or first knowledge of the occurrence of any of
the following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such as
the dumping of the contents of a sludge digester, the known passage of a slug of
hazardous substance through the facility, or any other unusual circumstances;

IV.
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
directly to receiving waters without treatment 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 has gone out of
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.
QROU DWATER REQUIREMENTS
Within 90 days of the permit issuance of September 19, 1994, monitor well MW-2 shall
have been abandoned in accordance with 15A NCAC 2N .0113 (Abandonment of Wells)
and relocated to a regulatory boundary. A well abandonment record ( form GW-30) must
have been submitted to the Wilmington Regional Office upon abandonment of the monitor
well. The exact location of the new well (to be designated as MW-3) shall be located in an
area approved by the Wilmington Regional Office.
2. Within 90 days of the permit issuance of September 19, 1994, one (1) upgradient monitor
well ( to be designated as MW-4) shall have been installed to monitor groundwater quality.
The well shall have been 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. The monitoring well shall be
located at the review boundary, constructed in accordance with this permit, and approved
by the Wilmington Regional Office.
3. The new monitor wells MW-3 and MW-4, and monitor well MWA (see attached map)
shall be sampled initially after construction and thereafter every March, July and November
for the following parameters:
NO3 Ammonia Nitrogen
TDS TOC
pH Water Level
Chloride Total Coliforms
NO2
Volatile Organic Compounds - In November only (by Method 1 or 2 below)
Method 1: Method 6230D (Capillary - Column), "Standard Methods For The
Examination of Water and Wastewater", 17th ed., 1989
Method 2: Method 502.2 "Methods For The Determination Of Organic Compounds
In Drinking Water", U.S. EPA-600/4-$8/039
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 have been surveyed
to provide the relative elevation of the measuring point for each monitoring well.
4

If TOC concentrations greater than 10 mg1l are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mg/l, this concentration will be taken to represent
the naturally occurring TOC concentration. Any exceedances of this naturally occurring
TOC concentration in the downgradient wells shall be subject to the additional sampling
and analysis as described above.
If any volatile organic compounds are detected by method 6230D, or the equivalent method
502.2, then EPA methods 604 and 611 must also be run to detect other organic compounds
which may be present. The results of all analyses specified in the monitoring requirements,
including 604 and 611 if required, must be submitted simultaneously.
The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29535 Raleigh, N.C. 27626-0535 on Form GW-59
[Compliance Monitoring Report Form] every April, August, and December.
4. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
5. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is
for the disposal system constructed after December 31, 1983 is established at either (1) 250
feet from the waste disposal area, or (2) 50 feet within 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.
6. All wells that are constructed for purposes of groundwater monitoring shall be constructed
in accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other than
Water Supply) and any other state and local laws and regulations pertaining to well
construction.
7. The Wilmington Regional Office, telephone number 9101395-3900 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.
8. Within sixty (60) days of completion of all monitoring wells, the permitted 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.
5

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 +/- 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 maps and any supporting documentation shall be sent to the Groundwater Section,
N.C. Division of Environmental Management P.O. Box 29535 Raleigh, N.C. 27626-
0535.
9. Upon completion 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.Q. Box 29535, Raleigh, NC, 27626-0535.
10. 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.
V . INSPECTIONS
1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities
to prevent malfunctions and deterioration, operator errors and discharges which may cause
or lead to the release of wastes to the environment, a threat to human health, or a nuisance.
The Permittee shall keep an inspection log or summary including at least the date and time
of inspection, observations made, and any maintenance, repairs, or corrective actions taken
by the Permittee. This log of inspections shall be maintained by the Permittee for a period
of three years from the date of the inspection and shall be made available upon request to
the Division of Water Quality or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division of Water Quality
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 of Water Quality 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. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Water Quality in accordance with
North Carolina General Statute 143-215.6(a) to 143-215.6(c).
5. 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.
6. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of the project.
7. The annual administering and compliance fee must be paid by the Pennittee within thirty
(30) days after being billed by the Division. Failure to pay the fee accordingly may cause
the Division to initiate action to revolve this permit as specified by 15A NCAC 2H .0205
(c)(4).
8. The Permitt .e, 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.
9. 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 of Water Quality.
Permit issued this the 3rd day of April, 1997
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston 146ward, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0002571

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RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name 'of Facility: i 1 o -e am." P r{[
Owner or Contact Person: _ nil, ► � 6 i�Vi lirawrS
Mailing Address: ic4l Harely Creek Ed. L-TaLLC,1-e 1e N•C, 2,Zs
County: Telephone- qla l -T#r -_Z4Z -
Present Classification: New Facility. Existing Facility_
NPDES Per, No. NCoo Nondisc. Per. No. a�r,2s?'IHealth Dept. Per. N
Rated by: ;rww- Telephone: Date: o'Z( 97
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone:
Check Classification(s): Subsurface Spray Irrigation LandAppiication
Wastewater Classification_ (Circle One) n 11 111 IV Total Points:. ) ir
' P Orr PR X c SS tS A`J CoN PMEN'T Wri A = IPART 0FMLJFMX P
CONS -)c=-1y, 5M nal 7,J''r FCPT cp Uat2X c c SI I c r
"Y OrS=.- R N Ln riPAW-rYI N=S ARr EXENET
SL SURCACE CLAS&F)C 7jON
(check ILI: units tha! apply)
1-septic tanks
2-pump tanks
3. siphon or pump -dosing systems
E sand filters
5. crease trapfinterceptor
6. oNwater separators
7_ _ subsur',ace treatment and disposal
cravily
pressure
SPRAY IRRIGATION Cp.AG57FIGATION
(check all units that apply)
I - preliminary -__-preliminary treatment (definition no. 32 )
2`Vtagoons
3. septic tanks
4. pump tanks
5. _�Lpumps
6. sand filters
7-grease traplinterceptor
8-cil/water separators
9. ✓ disinfection
1 D, ehemicat addition for
nutrientlaigae control
11..Je spray Irrigation of wastewater
Prelreelment 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.
UND APPJCATIDNIRESIDUAL S CLASSIF€CATION (Appbe's only to permit holder)
1. _ Land appGcaTiion o1 biosolids, residuals or conlaminalerd soils on a designated site.
V A5TSYATE R TREATT,1, FJN'T FACILITY CLASSIF)CAMN
The following systems shall be assigned a Class I classification, nunu fess the flow is of a significant quantity or the technology is
tlnt:suatly complex, to require consideration by the Commission on a case -by -rase basis; (Check h Appropriate)
1 00wa:er Separator Systems consisting only of physical separation, pumps and disposal;
2. Sepi;c TanklSand Filler Systems consisting only of septic tanks, dosing apparatus, pumps,sand fillers, disinfection
and direct discharge;
3�_ - __ Lagoon Systems consisling only of preliminary Treatment, lagoons, pumps, disin€eclion, necessary chemical
trea;menl for algae or nutrient control, and direw discharge;
<. Closed -!cop Recycle Systems;
5, Groundwater Aemed;ation Systems consisling only of pumps, air•slripping, carbon adsorption, disinfection and
disposal;
6. Fish farms with discharge to surface waters:
7. µrater Plant sludge handing and back -wash water treatment;
6. 5ea'ood processing consisling of screening and disposal.
9. Single-lamify discharging systems with the ezceplion o! Aerobic Trealment Units, will be classified if permitted after
July 1, 1093 or if upon inspection by the Division, If is found that the system is not being adequate!), operated or
ma;nlained. Such systems will be noliGed of the classification or reclassification,�y the Commission, in writing.

The fallowing scale is used for rating wastewater treatment facilities: (circle appropriate
points)
' TTEM t0 Wr5
(1) linduLiAL, Pr%treafrrers LMht w WutVfal PmLgWrn*rA PrW&rr, (too defirdtlan No.
(2) DE. nN FLOW OF PLAN7 IN 44 (nos 4LPp4:ab1s to rtonaonuminaud coating wafers, aludge handing
faurtties tot water puff wlon plant&. tolatty closed Cycle syatenes(mm deletWon No. 11). and laetitkiec
Cona4lin; only of hem (4)(d) or !ferns (4)(d) and (tt)(d))
1 Do,001
250,001 - 600,000..
6D0,001 1.000,DOD
1,00D,001
2.0pD.0D1 (and up) Mto t point scidworie for each 20D.000 gpd @"c ly up to a
matlmum
Design Flow c,
(3) PRELW WARY UNrrSMPOCE5SG
E5 ion hb.32)
{a) fie: Sc+e+rts......«............—.�r.�.._—_..__..._._«.._........._...�_...»..»�.............._.....t
or
(b) biseh&r%"T Screen![, St0c SaMrte of l:offuninrting Devices .... _•2
ar
(d)
(. } Fk7* Wa rrrrlrlg D&A* ___
or
(1} Iruttvmanud Flow ►ArswnmrnL.�...„...—.. .�.�.............�—._.........-.......���]
W Preasratlon.....
(h) InRuert: Flow
(I) Grease or Oil Sepuuort - Gravhy — ...... _ .2
DssolrseAir FM1alion.___.__—._
(I) Prochlorina4'ron....................
(4) PR-YA4-rYTREATM3.rl LT.17S FOCESSES
(a) Seplic Tank {see definition No. 43)..»
(b} Imholl Tank..._.._, ___ _......... _._ » » ._.. ... �.._....._ �..-.... r..— »..S
(c) Primary Clarifiers..._.-......._ .. ....................... .,_............ _------- _.......__..�..„».
(d) Settling Pends or Setiling Tanks for Inorganic Non -toxic Materials (sludge hand4n; tacllniss for
wale: purilcalion plants, Band, grave„ atone, and oche: m;ning operations excea! r.rrealional
a:10..4t; such as gem or gob mirrng)................_._........._.»»................»._»._.._._........»...... »2
(5) SEC'�JDi.RYTRSATM�-N'fUN:T$MFC]CESSIS
{aJ Garber'.atsous Supe
(i) Aeratlon•High Purity Oxygen System................ _......» .._. __...»..._.. _ »_.__2D
Di"used Air System...... _... .._ —__.__ _._ _..10
Mschan;"! Al., System (fixed, floating or
S4parale Shrdgs Reaaration............. __..� ... ._.. . _........ _._». _..._._ __ ..3
N) T6cQri; filer
HighRate......... ................................. _..........._... _._....»......».» _.,»...7
5tanda*d Rate ...... ........ .._..... ................. ....... « _..»._ ».» ».... »»......_ ...5
Packed Tower ................ ............... »...
.
BiobplraIAsneiodFlhsrorAsraled
6,01epizal Filer ....... _. _ __...,« _ „. ». _»...7 0
(iv) Asrafed Lepoons....................... _ ......». _. »».»» . ........ ....... ....1D
(v) Rowing Bioiogka; Contactors.._..»..».....»_».».»�_.».—».»....».„.»...........................10
(VI) Sand Filters 4niermiuenl biological,.. ..._.........._._....._._„2
Reclrcutaling blologlcal.»----
(via} SlablTivoiDn Lagoons........... »».._. _..__--._.» _ ._ ..._.......»........._.......» »
(viii) Garter. ..... .. »........__...... „.._»...._._...._..
SNIs crape system for combined carbonst*ovs terrovai o1 BDD and rilirogenDut
remore by nivViution (ale delinhion No. 12)(Po;nts for this Kem have to be In
addition to Items (5)(a)(i) through (5)(a)(via),
utllrz;np, the attended aeration process (sea detinli;on No3a)..„._...................................2
utilizing other than the exlended aeration pros.ss.. ._»......_........... .............. ... ._...6
(x) Nulriers addlions to enhance BOD romwal.... ....... ......................................................
5
(x1) Biological CuKure ('Super Bops')addiliDrf..»........_..»_..................................». .....5
{b} Nitrogenous Slope
(i) Asration • High Purity Oxygen Syasam._...._.__-„_.__..__...._..................»�......20
CMIused Air System ........................ ...................... ........................ .............. ............. 10
Mechanical Air System (rixed, Iloafing or nosor}...._�.._..._...... ...._........»..._......_...E
Separate Ssidpe Reaeration............... ............. ....................... .......................
Trickling Filler -High Role .... __............ _... _........... .... .......... .... »...................
......„........7
Srandard Rase..............................................................................................................5
Packed Tower .......................... ......................................................... .............. ............. 5
(ir) S;olop;ca! Aerated Finer or Aeraiee Biological Fdrar.__.......... ...------ ... ......-_..._.-_._.10
{iv] FD;ar�nc Siolopica! Con'.aciors................................................... .._.................. _........... 10
(v} Sand Fii;e+. iniormitterrt biological ................. ............ ....................................... ».,..„.._...2
Fiecirculafinp WO102it:al................................ ......... ............ ................ . ... 1.1............. I .... ......
3
(vi) Gt'ter.... ............. .................... .................................... ............... .............. ............... 5
(6) TER7ARYDRAD':.ati'CED7REATMEN7LNrrS.PFOCESSES
(a) Airiva;at Carbon Beds -
withoul carbon regeneration ............ ......... ,.............................................................................
with t:arbcn re'eneralion................................... ............... ................... .................. _............ 15
(b) Powdsrad or Granular Aclvstod Carbon Feed
withoul carbon regeneration ............ .................................................. ..................................
.5
wiin carbon ropeneration....... ........................... ............ ......... ......... ......... ......................
......t 5
(c) Air Prl�pi'............................. ......... ................"..'........... .... ........ .............................. .....rJ .........................
(a) Den;iril,ca;,Dn Process......................................•---............................_..._............._........... ...., 0
.................... .

(a)
EltGrodatyafs.­ �_ c
(1)
Foam Ssparallon.- _- 5
(0)
Ion Eschange..
(h)
Lend Appk&Wn of Treated Eillusnl {see dolinklon W. 22b) (ftol appk4lbin for sand.
4raval, Story and other 51MW a*ft iperawns) by high rasa W-Amlion_«._.
((}
Phosphorous Removal by 6104ical Processes (Sae Wfinhion W. R6).-.
W
Polishing Ponds - without asrallorL _
vAlh aoratiom­
(1)
Post Asralion - cascade...._.. ---A
CMut:edwertedrardcal
(m)
ftevsrse
(n)
Sand or hosed -Media Mom - flow tale
ITigrl rase
(0)
Tneatmsrs processes for nmwal of metal or
( p )
Irtaimanl proamLes for rarwyai of laxic rmlarials other than metal or cyanide t 5
(7)
5 METRFhTi,MB4T
(a)
Sludge Dipsslion Tank - Msafsd
Aerobic 5
Unheated 7
(b)
5lud2s S;abpization (chomlial or Ihsnrtal)
(e)
Siudpe Drying Sods - Grsvlsy......--__..__�___.
Vacuum
{d)
Sludge Elvirlabon_ _...._--r— —�
(a)
Sludge Condhionor (chertilcal or thermal) S
(1)
Sludge Thickener (gravity)......__..____-.__-_«
{ 0 }
Dissolved Air F'iotation Unh (nol applicable to a unk rated as
(h)
Sludge Gas Utplxallon (Including gas stomp•). 2
(1)
Sludge Naldutp Tank - Aeralad
{)}
Sludge Ineirsrator (no: Irtduding setivaled carbon fogs no
(k)
Vacuum After, Centrifuge, or Filler Pro" or other simiW dtwslartng devlcss-..._——t a
(8)
AE510'JALS LJT LII.ATi0 VVISPCtSA.� (hadudcng inc irwratad ash)
(a)
(b)
Lard Appi'tealion (surface and subsurface) (see (definition 22a)
by contracting it a land application operator or lartdlW operator who holds the sand
application psrrnh or Iandlill permll..._,....-..__-.....—....... _�.._ ....._......._. _.. _ - ._. .2
(c)
06C1441e6 Landlitl(butilal) by the permhtoo of the wastewater Iraatmant
{ c)
Ocs.Ftt�
(b)
Dechlorirtalion_�_. ..� . _.. � ._.«. _........................_....
(1 0)
(d)
CHEWCAL
Radiation .................
ADDITION SYSTEM (S) ( sus dsfiniiicn W. C) [not appLcable to "mlcal ad&tiortc laud as hem __ ---W�
(6)(a), (69b), (7)(b), (7)(e)• (pa), (2)(b) or (0)(c) 5 points each:
5
(1 1)
MSCELLAidEC UNS N.. 5T PF CESSES
(a)
Hold,; Ponds. Holdmi; Tanks or Stilling Ponds for Organic or Toxic Matertols ftiudtnp waslas
from mining cperalions cortainlnp nnropen or Phosphorus compounds In amounts atgnNCarily
proale' thin is common lot domattic watlewater._.,...., �T
(b)
Vwem Flow Ecl"Tizaiion (na' appllcabis to storage basins which am Inherent in land application
(c)
(c)
syslsms). _...... .. ...
Slope 016chargs (nol applicable to sloraps basins Moran In land appliation ayalerrts).._-_ �W
Pu mgs..................... .................. ... _.«_.....»« » » .. _.. _ _ _ .3
(er
_ . _. ._r.
Siand•By Power SupPIY•- �......_.. _.... « ..».. .. �_ _
(f)
Tram_; Pollution Comrol Device...
TOTAL
CLASSFMATCN
+ !S•25 Points
« _ . _�»._...W r
ass II , 26•SD Points
Gau1Q _ .�-...._ ».» _ .......... _....lit-65 Polnis
Class rV...... __. ». ... _ .» _.__.._ _ .._ _.._..._.............. _...... 66-Lip Pofna
Fscilr,ies havin; A ratirV of One through four points, Inclusive, do slot require a anNied operator,
Faci,!i�es havini an aZiva:t: sludge process wit be aasipned a rrnimum Cj UH:a.ionof Class Il.
Fsci,aiss havinp maims,)! processes lor the removal of msial or cyanide vdi be assgnsd a minimum NssVicalion cf Gass IL
FeCltnlos havinp (re airr*i% processes for the biWopisal removal of phosphorus will be assigned a minir wrn tiassif"lion of Class ill.
,OOU RE FI Hf ONS -
The lociynp oe!.nfa u LMI aWy lvo4..oUl lrs Suigneptar.
(1) ACire;ae Ceix, 8405 A P'70talrchemirel sne Mee In r*WCinp StIlWo W penir rntlrw tram w•etlewaler oraubM. The toiwmmtrpe beds vsad i, lit mtnod rA hors
a Ilor rare varr.,j hon: swrc to eipht pap,%, po, rnn,lto per sware Lao: ■me mat be sins, Wow or ea.eneow Coro, beds. Carbon men or errl no be reperwalad an restwt-:rha:e• vtaraen: p;an! *As:
(2, AeretS! Lsgoms A ba., r tvhiei el sonde are ""ar'ee n ■usp iCn erld by tAith aelapical aNdaton t apV'k Rynor it todmad Nargh arUeiaty esreisaMd
Usnlfe. or Dr rr r- on t Ao.-Ryo.ph basis;
(3, Arsiiv: A process o' t—p-, abov intmele rararl be"Is, si• or h2, gaily oeypea h A find by agrayirV. apiliLion or dilf6siwl$34) Essonded Aeration. Aft
act•tre! si.rc9. Prouit sft.,rin; a rnft r M hraeJ,C oesFton erne al to hare.
(ai A��.cJ��e'il mervyen nice M. 40. Cr Vwd, a crop i. pad,,Cad, maaped, snd ha..sclsd (Crop inokrdes p•atses, q.ins. toes. *W.):
(1, A,: Stnpp �; A process by wwch nt im is tnl CO-l-ted It 0110tiee ►mnohit fp++. eg.rsrne e) WA: the amrlaria then isiuted to M sanowhwe by
phle"" rna"s. or rr+r e�:a• VW -►sees lynch nmo>•e patdeisn prDd•sn sun At beaten, teiwne, artd nylon,
(t; CA•Ooe Regaharattn the rspenwaton at as.Lyalmd carbon by tna vao of a r,rnare so pwids ectrsrrte'y h9h earrperslues errlith vofaa4to end asidRo to abs&Wd
a*a✓,het;
(Ij Ct1o­ec0o,w Supe A alter of waslewsle, ►aalmem seaipned to aCrlrYe 'second Sty' allVonl "u,;
(E. Crt,L.;4 A macnen,n' device m ..hCh ra,r.,4,a' Ives is vase to sepr.ate toLos rrom i•gids o1 to upvste bq edt 01 djrfe•enl eaaiist;
(S, CJ,--+:a r+D•-m Srslens The aodi.o•, to try-t,ral(sj Is, ►china:s! ■; a app,Ci ,v pony fp, p epetes N Imya+ins SDT,dt camava', PM adrysrnarc- alkalinity CV W.
ea ,Iry cacao m ergo vn.v rtiT d."wehl Chamrns and ohenn; epp.caeon gams to och,wa a SpsC1eC tosvl, r:r, ba Consiltrree cite yatam, the eapasi,r) tt add

dsmrrftaga) le deer w,#ts will bo riled as ors System Capability fs bold S theRiial al a dflaanl applraron PC&dt fox ailrrtrst psrrposes veil passel in the rytiomms being
race a oaparaeo a7al&ms;
(10) Rhomiral sa.spr candtior*lg, That adagon bf a dsarricaS .oxmpomrsd such as isms, 6611ia ddride, or o Poljncar so wet *Ago be, eodaws the most prior ID la
apprictiism b a i,voterinp device; wit, parahrtl
(it) Closed CrW systwra. Usa of haidng pooch r holding terse for Containment of waSlawater coitaWrip knorgaric, hOn-losk rentertais berm Sand, gravel.
seen or sew s4rtdar opwaions, Such *Towns chat carry s rMlIrmorm of two pants npardless sl pLmpng tscihiol Of any other appunerences;
(12) Combined !genmvs' of C rbareteous SOD and IAToparrous Parneval by N"nA6usiorr A aingfo stage system rogtusd p athiavl pemalt Obaaant ibrim on HOD end
aromsomis rivisgan whin ew sarrw biological reactor;
(13) aaCH&.netiv%L Thee perisl or comprsN reduction or nsldual chlorine 1n a Nod 67 r7' elerrical M physkel poets&; .
(u) Dsnrduticn preteu. The cofwwsion of Nrale•NYogen to rivog+n gas: r
(ts) 6seVodIryrJs, Pt"* as for rwnvrirag •WOOd "ha loom water Ihroph thew of 6oe►aelwslvs ixn•aacharsgt m tot pfwwt;
(tc) Rkr Press. A process operater' msr3s,ncs11T for partially 4111W64fing siudpl:
(17) Faam. Sosparalm The pdampd nothing of wulevrltar or waa:owale• amuenl as a msars Of rrnoving flclssft'e ameUrMa of Ialwpertt ""fuels Mugh the
fdontidid,n of atr in the horm o! fins blhab!ts; also gated loam bacion,tion;
(it) firth A rnovat The process of romwng 96; and othw heavy trines! matsw ban wastewater,
(1S) k:'hscr. Tank A oseap Mc story wastewater Unk coeuic6ng of an upper asdvren1,66on diatribe r acid a lower S"t itpeatan Charrbet.
(20) irsYvmsrrtta[ Acw klsauromnL A drvics eolith indcales and records rats or flow;
(2t) ten Elidwi pe, A Chemical proms In which ions born fro dt!aront IsaofeuAes bee ssrls,ng,d:
(22) Land app;ution: t an Ella ruian sr aubsurfau r 1on {i.e.,
(a) twor Gsp,,W. A fin& skdps dsposs! method by whlct Brat skrdye arey be applied to land eleser by Wad 1sy 11
this►' pew), (rot appiiubrs lot types o! stodge described in (11) of "a We);
(b) irealad EftltssnL The process or WayLN Isolated wastewater onto a (and area u oho trrttods of applicstion o<walMwater Into a land arse as a Roane a! fine
diasposal r Yesanort;
(22) Wwasr&erL A iow speed, so mv6sly back-washod, Waling drum Rise Operating under gratify emotions as it porising rretiod lx remeeing; auspandelf Solids
torn 41INOWA:
(24
) hiviF"Son-Process. The b"hoch "cacaxerStun of uresldrod rivogsn (arrvnaila and erparit ritropen) to oxidS'Y led 1opin (us"lly, filtrate):
(751 Hraegenoss Stags. A separate slogs of wastewater teaa'nani deogrsed rr the specific ph.rpose or converting amrroria nitrogen to rsirmha nitrogen:
IN) PhalpfeN Rerrrral, Holapt&L 11e removal Of phosphhcrrix Iran wastewater by an ouclarosk protest dosigrtad to anhosmo Iruxury uptaks or phosphonrt by the
rmianap Aml9mZ;
(271 Paf:4ing Pond, A Adding pored iplow(mg secondary 110ALmsant! wlfn Qafidsrs Wanton tern b abow saiting of irt.ly sarsparded soils;
(24) Pest Aaisidl Aeration foliowing conivsnional seeorhdary beaLn"nl emits to i neraass apfxrwnt 0.0. or la Lmy srir plarpost;
(25) Post Aito6orL (C,stsds) A poCsJing method by whch dissolved oxygen Is added to Fos sllused by a norrr ohiricalL gr&Wty rnswu of Mowing down a seAes OI
steps v wets: The Bow occ -tire, acrots to stops or weirs moves in a fairy tin imyor and hI operation Of he ca►cadt toqu'vaS no opw,tr aLjvsYnenL: tua, taro
poimtZ an ALignad even thw,'!h this Is an essential slap to Rio -ling the limits of the discharge permh;
(ac) Powdered te GranUir Anivelsd .Carbon Rod. A biophysical carbon process hat u►lixas biological ac6vlty and Or "r absorption 117 Uslni povedersd Or grlrcallr
acfiv&ted caution; YYo'n or regenerated urban Is Food corrirdied Into is syslsm;
(3t) Preseralicri. A lank consructed so provide oarai;on prior to primary vsstmert;
(32) Pretint"crary linlo. Un;l operators In tits Taatmnnl process, scr_>i as scrawirsg and conrrlvuton. ttei prepare Iris liquor fa subsagt»nd ma)r opsratora:
(33) ind nirrial PrevoavrerR. -
(a) Pre•vesYnan' Unil, L•dustiai. The rundtioneng Ol Is wash at Its sourcr belors discharge, tD remove rr to neL/Yatilt subsianns lrnor otn to sewers and traatmnt
procassss Of fs silken a panis! reduction In toad on tna traalmem process wSc:h is operated by the time povwring toady, at he watwraisr atatrnam plant being
ralsd;
b) Pta•Ysalnrsl Propam, incimitBat . must be a Seats or EPA required program to receive points on ha riling shad;
(N) Primary CdaArns. Tho first senftrr, lurks thraagh whch waslswalrr Is passed In s rearmart wa'i.s for the purpose or rema.Anp set6sabla end ssaspended solids and
600 +h!Vch Is auDr]llod wtir, he solids;
(35) Fimps. AS nfiuerr.• stfw,. and Irvpiem ¢.imps. .
(36) Radalor, D1sinlecion or str.;Llllian prpcexa VCi2ing ClIr(eei swilling vltavidol or gamma rays:
(37) Reverse Ovnosih. A Iresrrlm; process in which a heavy Cvrstsrnnaied 6q.id Is peots✓i11C Krogh a mormbeent formlrg nearly pure liquid bee from wapended aerids;
(3L; Rcuths Btoiegictl Corwbclam. A fixed biological geow^ h process In which wastewater tows nor„`, Ursa In wNc h ■ &wrist of partally submsrped &Cjar sutects
arm rotated; '
(39; Sand F01ers:
(e) Lnlarxnnen. tyologicr!. fllvsion or 9muenl ioilovring septic larks, tagoons, Of &ems other treattrent process In which Artier bodecomp,09Won it aspecied b
prod,rrs dslired SKrupnll; I-!ydr+J,c loafing rate, on rice p1ws ate eo-nper,od in ppdrec idol Mvs a toWim; low gpnvsi (btu Phan ern);
b) Fiedrersing boiogical . he Sams type o! sand hoer as dofned in istpuapraph (39) (a) of Folic Rtlt win tw added capability to recycle offiveni back frouph the
sand Lhw;
(<O) Sand or Wizee- Gads Fillers. A po'ishing precast by wNch oltu eni linitc tea achievod hfough a LMN toducton or suspended solids;
(&) few r1% _ pr+tity, hytravfical'y Icadsd t!:m• w.lh loading rallL in the errs Ia thus gprnhf range;
fib) h'gh tote •- a prssaur6, hydtulrrany loaded fihac "ith loading islet It no frra S;e7Vsf ramps; A; Any rate, fro loading rate will ncaod three gpmrst;
(et) Socorodtry ClarlAws. A Unk which Ialiows tot biological whit of tresTnerr. prier[ and which has he purpose of removing skadpas associated with N biological
treetmhl LwOi;
(42) Separalf Skrdgt Asesrtten. A pan o: no contact stabililiaSon process wtwre tie sctvstod siudgs is transferred to a tank and araled before refrrhing k to 1M
atnllt'l basin;
(e7) Septic Tarp. A sng'o•story aohrrng tank In which sonied 11%4pe Is in conact with the westrwaler Crowing through the fares; shot not be applicable for soplic tank
Sysloma seen; single lain) reS;erces havr_nj caplely O! 2,000 gsGors or tars wheh Csahalpt to a ritiiAeation Wd;
(a.o) Sludge Drgtalim. The process by witch rptrit or vo!at!ls moiler and slwpa is gasified, liquefied, oinoraliilod a torvwted Into more ALBUI a'panic rmaflex frouph
eht atsroy o! Irving operisms, which includes tooled herding tanks;
145) Siudgo Dryl n tads. An a!S& torturing malLroT or onihclal layers at poau matsrisft upon which digested sewage &iudgt Is dread by d'oinape arsd svtporallon;
(s6) WX99 El,itiation. A precast of w'uesge cordiVing In which certain eontilusnls are (,mewed by wccei" wesh;rnps wih fresh water or punt offluent;
Sewage Skept Gas U0116ce" The p'ocrss of vsfr; Seage gas ]Of Fos psrposo of haling Wildngs, c)vsng engines. Cato.;
(41; Shope i{dG-rr Tart. (Aer&lsd and NonaeralsO). A lark LC400 for wrvl: wastewater treatment plsnu toe: cvhuiring it dgtslx In which slvdga may be kspl bash,
ane supvrsa uni wi:hd-awn prior to a d'yins method (i.e. Nudge drying bade); TNI may be don& by adding a serer smm nl or air 51m iy to kstp tee nudge fresh, b11. no!
reroxsarify an amour: e.rl woad be rpRiih►d 1c ■cSove 61abli2alior, or orgaric menw, aL nonaerated tar, world simply be used to decant sludge prior to dowauring and
wadlC tool arrow tong periods (savoial days or dalenion; without resulting odor problems;
(<S) &wdgs Incirrratrt. A Lr:eca des:prrd Ic bum z3od90 and to rerrvet in mcist,,rs and cmhbvstbls mslriole and reduce the sludgo w a shonle ash;
(50) S16L,4a SuS,.tliv, pwjn'csl Or Thermal). A process to !Hake uelted aluCS+e less Odorous ane pucescibit, and to radars d'e pithopnic rgarism consent; This may
bs dame by psi t¢estman:• thiorino dosing, Or by heal leatmanl;
(51) Sl.!dgt Tritkonv. A type of spe,"n:aton unit in yrhith he &kedge Is per-insd to sonit and thitken fvough agitatoet and privily;
(52) SlAOitalioh Lamm A type of axidelion lagoon in which bioico'ctl exieli,n o1 organic matter is orlocted by mA rraT transfer or oaygn to the water tom air (tool a
poGlhing pend);
(53) St&M-By Power Sspply. Or. &its Or porlaMs rleebltpt grheratnp equfpmsnt.
(!.a) Statc Schovms A sla!ion&•y scram &S; rhpd to remove solids, includng non•bPodrgradable panis:LW4 (fhottable solids, sanpmded solids and HOD reduction) from
muhioape and Lre st;a! waS11-41er Yearnmr systems:
(551 Tvtarr Tlesemvn;. A slope el trtalmons lo;,inj Secondary whch is primarily Ir the psrposo Of sftsaom poliah•nrg; A +•King lagoon or sand or coal filer rriphi W
impaled Ian Tess purpose;
IM: Tnm'rrwl Pdknon Control Device. A device prpviding (or the tranarar o1 hots teem a svid fibri% In Isbes b aneelp, lad out etch M tsboa, or rice r►raa; or Otter
moans of regJs►toy bct id tampmrawtos;
(57) Themnal Sludpr Condiiornvt. A condtfoning process by which has: is add#' for I pralratled period or 1:ne to improve M drwSttlsbdity of Sludge by the s&%rW4Ziry-
line hydrsd+ling a: the smaf:a• and more higriy hyda:ed s}udpe peniClOS;
(56) Tofic ttalerials. Those waiter or torraNtons or wastes. knCludir, 0;sra&t•cs6sing agents which arur ds"rgo and upon exposure, ingestion, nhalstirh or
asinilalin Into any rgansm, either diaocey from the rmirermenl r ndrocily 01 Ingestion through food chains, will cause deal?), dsease, behavlral ab oemahttes,
once+. 90nc,c mv.et:Dns, phrvological melyrGlirlt (ntlud.ng rnalhurciom i. tope otlsrt lien} OF physical WSarTThat Cans, In such agtritms r lhtir 011spring; Telic nfateflris
i+C1644. by w67 0! e:uhl:aton end not limulion: land, caerni m, chern;vm• mercury, vanadium, misoric, Zinc, Di-no-ritro•chlorobanxerre (ONCE), polychlorintted biphwnylt
CoC511 arcs CICNwedphonyt v rNo,tchano (DOT). and any What "llntls "I have or may horoalwi be dalarrrinod to have losit proporios;
(59) inrLrmg Fow it Uolo;ittl Lrait-nnj unto tensistng of it mate'1a! such as b'ol.en stone or rocs. over whch wastewater is dtributed; !. high :Lea ILKWing Idiar it ore
wf1'Ur ota:atot: m: Dc'.'aen tG an: 30 mg: par errs. A tow rats Yicklhn; Idtsr is one whch it dosigiod :o opralo ai one to fcv nv pot Otte;
({d) Tnc Lhng rr%t Towa!) Toar) f, r' ,1. s) Ao'pe or CP4W10irn in which w9,trw&Ie1 la-S daw+r tha•_gn sv--40Wve Elyora of n+ode Cr 1117aio ma Urial; Grgarnr malr.11
IS rwmaYoC ter tic stbva bio-r, cal Aspd gin each sucCesure layer Tnt method Hey poducm •&etond&ry' queen WVOu 1l, r may bo IC&Plec to
poGrce c tna,a-tot. (61) Vaiv.rn Ft;mi. Cw.ir.,gos, or Fates r',peses DD.icas witch ors d7sopncc to ronuv& a+tvss wata• rrom oi:',n dgacnod o- unlposwJ slwgo prior le dsp:cal C-
tl '-%l s.paonem: