WQ0002571_Final Permit_19940819

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Ed Brown
Mr. Bobby F. Williams
519 Cow Barn Road
Jacksonville, North Carolina 28540
Dear Sirs:
Ar4i�
�EHNF�
September 19, 1994
Subject: Permit No. WQ0002571
Village Oaks Mobile Home Park
Wastewater, Collection, Treatment, and
Spray Irrigation
Onslow County
In accordance with your application received April 5, 1994, we are forwarding herewith Permit
No. WQ0002571 dated September 19, 1994, to the Village Oaks Mobile Home Park, Mr. Ed Brown and
Mr. Bobby F. Williams owners, for the continued operation of the subject wastewater treatment and spray
irrigation facilities.
This permit shall be effective from the date of issuance until August 31, 1999, and shall be subject
to the conditions and limitations as specified therein. Please pay particular attention to the monitoring
requirements in this permit. Failure to establish an adequate system for collecting and maintaining the
required operational information will result in future compliance problems. Issuance of this permit hereby
voids Permit No. WQ0002571 issued October 15, 1990.
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].
Sincerely,
)r.,A. Prestdn Howard, P.E.
cc: Onslow County Health Department
Wilmington Regional Office, Water Quality
Wilmington Regional Office, Groundwater
Groundwater Section, Jack Floyd
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% post -consumer paper

1

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
Village Oaks Mobile Home Park
Onslow County
FOR THE
continued operation of approximately 1,210 linear feet of 6 inch gravity sewer and 210 linear feet of 8 inch
gravity sewer; a 13,200 GPD wastewater treatment and disposal system consisting of 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 and a 178
GPM sprinkler system for a 3.6 acre 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 April 5, 1994, 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, 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
Environmental Management, 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.
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 North Carolina Division of
Environmental Management.

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. OPERATION AND MAINTENANCE REQUIREMENTS
1. The facilities shall be properly maintained and operated at all times.
2. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202.
3. A suitable vegetative cover of the spray irrigation area and appropriate areas of the treatment
facilities and collection system (i.e. areas where erosion could damage the proper operation
of facilities) 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 52.0 inches per year at an instantaneous application
rate not to exceed 0.25 inches per hour.
No type of wastewater other than that from Village Oaks Mobile Home Park shall be
sprayed onto the irrigation area.
2

9. No traffic or equipment shall be allowed on the disposal area except while installation
occurs or while normal maintenance is being performed.
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.
III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, soil or plant tissue analyses)
deemed necessary by the Division of Environmental Management to insure surface and
ground water protection will be established and an acceptable sampling reporting schedule
shall be followed.
2. 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 every April, August and December. 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 the following month. All information shall be
submitted to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
3

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;
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 15 days following first knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
TV, GROUNDWATER REQUIREMENTS
1. Within 90 days of permit reissuance monitor well MW-2 shall be 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 be 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 permit issuance, one (1) upgradient monitor well ( to be designated as
MW-4) shall be installed to monitor groundwater quality. The well shall be constructed
such that the water level in the well is never above or below the screened (open) portion of
the well at any time during the 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 MW-1 (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
El I

Method 2: Method 502.2 "Methods For The Determination Of Organic Compounds
In Drinking Water", U.S. EPA-600/4-88/039
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 be surveyed to
provide the relative elevation of the measuring point for each monitoring well.
If TOC concentrations greater than 10 mg/1 are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mg/1, this concentration will be taken to represent
the naturally occurring TOC concentration. Any exceedances of this naturally occurring
TOC concentration in the downgradient wells shall be subject to the additional sampling
and analysis as described above.
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 BQ NDARY 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 910/ 395-3900 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.
�1

8. 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 +/- 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.O. 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.
no

2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities
to prevent malfunctions and deterioration, operator errors and discharges which may cause
or lead to the release of wastes to the environment, a threat to human health, or a nuisance.
The Permittee shall keep an inspection log or summary including at least the date and time
of inspection, observations made, and any maintenance, repairs, or corrective actions taken
by the Permittee. This log of inspections shall be maintained by the Permittee for a period
of three years from the date of the inspection and shall be made available upon request to
the Division of Environmental Management or other permitting authority.
3. Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the disposal site 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.
V 1. 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 of Environmental Management accompanied by an application
fee, documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of this request will be considered on its merits and may or may
not be approved.
4. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6(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 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).
8. 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.
fd

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.
10. Issuance of this permit hereby voids Permit No. WQ0002571 issued October 15, 1990.
Permit issued this the 19th day of September, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston. oward, Jr., P.., Director
Division of nvironmental Management '
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: V rr K S
Owner or Contact Person: e� v r1
Mailing Address: a X 21-7 - f , 01 L
County: —D r. r
Telephone:&7,O)
S�— ,3ZZ 3
Present Classification:— _
New Facility
Existing Facility
NPDES Per, No. NCOO Nondisc.
Per. No.WQz09��/
Health Dept.Per No.
Rated by: =C.
Telephone:
Date:
Reviewed by:
Health Dept.
Telephone:
Regional Office
Telephone:
Central Office
Telephone;
ORC:
Grade:
Telephone:
Check Classification(s): Subsurface
Spray Irrigation
Land Application
Wastewater Classification: (Circle One)G
-------------------------------------------------------------
it III IV
Total Points:- /(�;
I Y
SUBSURFACE CLASSIFICATION
(check all units that apply)
1, septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. sand filters
5. grease trapfinterceptor
6. oil/water separators
7. gravity subsurface treatment and disposal:
8. pressure subsurface treatment and disposal:
SPRAY 1RPJGATION CLASSIFICATION
(check all units that apply)
1.
preliminary treatment (definition no. 32 }
2,
lagoons
3.
septic tanks
4.
pump tanks
5,
pumps
6.
sand filters
7.
grease trapfinierceptor
8.
oil/water separators
9,
disinfection
10.
chemical addition for nutrient/algae control
11. spray irrigation of wastewater
In addition to the above classtficatfons, pretreatment of wastewater in excess of these components shelf
be rated using the point rating system and will require an operator with an appropriate duel certification.
LAND APPLICATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CLAS&FIC4T10N
The following systems shall be assigned a Class i classification, unlesg the flow is of a significant quantity or the technology is unusually
complex, to require consideration by the Commission on a case -by -case basis: (Check d Appropriate)
1. Oil/water Separator Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -loop Recycle Systems;
5. Groundwater Ftemediation Systems consisting only of otl/water separators, pumps, air -stripping, carbon adsorption, disinfection
and disposal;
6. Aquacu#ture operations with discharge to surface waters;
7__ _ _Water Plant sludge handling and back -wash water treatment;
8. Seafood processing consisting of screening and disposal.
9. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified if permitted after July 1,
1993 or if upon inspection by the Division, it is found that the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassification by the Commission, in writing.

The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
ITEM POINTS
( i) Industrial Pretrealment Units or Industrial Pretreatment Program (see deftnition No. 33)...................................................4
(2) DESIGN FLOW OF PLANT IN gpd (not applicable to non -contaminated cooling waters, sludge handling facilities for
water purification plants, totally closed cycle systems(see dell6tion No. 11). and facilities consisting only of hem
(4)(d) or Items (4)(d) and (11)(d)]
0 20,000........................................................................................................................................... 1
20,001 - 50,000......................................................................................................................................
50,001 - 100,000.....................................................................................................................................3
100,001 - 250,000...................................................................................................................................4
250,001 - 500.000..................................................................................................................................5
500,001 - 1,000.000................................................................................................................................8
1,000,001 - 2,000,000..........................................................................................................................10
2,000.001 (and up) rate 1 poirs additional for each 204,000 gpd capacfly up to a maximum of .................30
Design Flow (gpd)
(3) PRELIMINARY
UNFrS/PROCESSES ( nrtion No.32)
(a)
BarScreens...................................... ...................._..........,....,...........,,,.....................................................1
.
(b)
or
Mechanical Screens, Static Screens or Comminuting Devices........................................................................4 2 _
(c)
Grit Removal ............................................................................................................................................:.1
ar
(d)
Mechanical or Aerated Grit Removal.............................................................................................................2
(e)
Flow Measuring Device.................................................................................................................................1
or
(f J
Instrumented Flow Measurement................................................................................................................2
(g)
Preaeration................................................... ............ 2
( h)
Influent Flow Equalization..........................................................................................................................2
U)
Grease or oil Separators - Gravity.................................................................................................................2
Mechanical................................................................................................................................................3
Dissolved Air Flotation................................................................................................................................8
(I ]
Prechlodnatfon......................................................................................................................................... b
(4) PRMARYTREATMENT LNITSrPROCESSES
(a)
Septic Tank (see definition No. 43)..............:.............................................................................................2
(b)
Imhoff Tank..............................................................................................................................................5
(c)
Primary Clariliers..........................................................................................................................................5
(d)
Settling Ponds or Settling Tanks for Inorganic Non -toxic Materials (sludge handling faciffties for water
purification plants, sand, gravel, stone, and other mining operaions except recreational activhias such as gem
orgold mining), ............................................................................ .......... ......................................... ...... 2
(5) SECONDARY TREATMENT LIVI WAOCESSES
(a)
Carbonaceous Stage
{i) Aeration -High Purity Oxygen System...............................................................................20
DiffusedAir System............................................................ :.......................................... 1 0
Mechanical Alr System (fixed, floating or rotor)..................................................................8
SeparateSludge Raaeralion.............................................................................................3
Trickling Filter
HighRate.......................................................................................................................7
StandardRate.._. ..... ..................................................... . ............................................ S
PackedTower.................................................................................................................5
(I if) Biological Aerated Filter or Aerated Biological Filter............................................................1 0
(iv) Aerated Lagoons .......... ................................................................................................. 10
(v} Rotating Biological Contacton:......................................................................................10
(vi) Sand Filters -Intermittent biological..................................................................................2
Recirculatingbiological....................................................................................................a
(vii) Stabilization Lagoons ............ ......... ............................................................... ............. �.5
(vtll) ClartFier...........................................................................................................................5
(ix) Single stage system for combined carbonaceous removal of SOD and nitrogenous removal by
nitrification (see definition No. 12)(Points for this hem have to be in addition to hems
(5)(a)(1) through (5)(a)(viii).
utilizing the extended aeration process (see deflnhlon No.3a)...........................................2
utilizing other than the extended aeration process............................................................6
(x) Nutrient additions to enhance BOD removal.....................................................................5
(xi) Biological Culture ('Super Bugs')addhion........................................................................5
(b)
Nitrogenous Stage
(I) Aeralfon - High Purity Oxygen System.............................................................................20
DiffusedAir System.......................................................................................................1 0
Mechanical Air System (fixed, floating or rotor)..................................................................8
Separate Sludge Reaeration.............................................................................................3
(II) Trickling Filter -High Rate...................................................................................................7
Standard Rate................................................................................................................6
PackedTower.................................................................................................................5
{flf) Biological Aerated Filter or Aerated Biological F€her.............................................................10
(Iv) Rotating Biological Contactors ................... .........10
(v) Sand Filter - Intermittent bloioglcal...................................................................................2
Recirculating biological.....................................................................................................3
(VI) clarifier.................. ................. ....................................................................................... 5
(6) TERTIARY ORADVANCED TREATMENT UNiTS ROCESSES
(a)
Activated Carbon Beds.
without carbon regeneration...................................................................................................4
withcarbon regeneration.......................................................................................................1 5
(b)
Powdered or Granular Activated Carbon Feed-
w1thoutcarbon regeneration.................................................................................................5
withcarbon regeneration.....................................................................................................15
(c)
Air stripping...................................................................................................................................5
(d)
Danitrificallon Process..............................................................................................................................10
(a)
Electrodialysis............................................................................................................................................6
(f)
Foam Separation ........ ....................................................................................................... ........................ .5
(g)
Ion Exchange... ... .... ... ...... ...... ...... .......................5 .......... ........... ...................................... ................ ..... .....
(h)
Land Appllcalion of Treated Effluent (see definition No. 22b) (not applicable for sand, gravel, stone
and other similar mining operations) by high rate Infillralion....................................................... .......... ........ A
(I)
Microscreens.......................... ................,,,.................................................................................................5
(1)
Phosphorous Removal by Biological Processes (Sea dannition No. 26)........................................................20
(k)
Polishing Ponds - without aeration............................................................................................................2
withaeration.................................................................................................................5

(1)
Post Aeration - cascade .......................................... ....................................................................................0
diffused or mechanical.,... .............................................. .. ­­­ ........ ............. ­­,
........... 2
(m)
Reverse Osmosis..................................... .................................. ............... ......... .....................
..........5
(n)
Sand or Mixed -Media Fillers - low rate.........................................................................................................2
highrate......................................................................5
(o }
Trealment processes for removal of metal or cyanide...................................................................................1
5
(p}
treatment processes for removal of toxic materials other than metal or cyanide..............................................15
(7) SLUDGETREATMEM
(a)
Sludge Digestion Tank - Heated (anaerobic)...............................................................................................10
Aerobic.................................................................................................... ...........................
Unheated(anaerobic)................................................................................................................................3
tb)
Sludge Stabilization (chemical or thermal)....................................................................................................5
(c)
Sludge Drying Beds - Gravity.....................................................................................................................2
VacuumAssisted......................................................................................................................................5
(d)
Sludge Eluldwion ......................................................................5
(e)
Sludge Conditioner (chemical or thermal) .................................... ............................... __............................
5
(f)
Sludge Thickener (gravity).........................................................................................................................5
(9)
Dissolved Air Flotation Unit )not applicable to a unit rated as(3)(i)).... ............. ....... ................ .....................
a
(h)
Sludge Gas Ul€lizalion (including gas storage).............................................................................................2
(1)
Sludge Holding Tank - Aerated....................................................................................................................5
Non- ae rated.................................................................................................................................
............ 2
(j)
Sludge Incinerator (not including activated carbon regeneration)...... .................... _ .......... .........................
10
(k)
Vacuum Filter, Centrifuge, or Filter Press or other similar dewaiering devices...................................................10
(a) RESIDUALS Ul'IL17ATIOIWDISPOSAL (inducing 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 applicalion permit
orlandfill permit........................................................................................................................................2
(c)
Dedicated Landfill(burial) by the permittee of the wastewater treatment facility. ..............................................
5
(9) DtSUFECTX
(a)
IN
Chlorination...........................................................................................................................................
(b)
Dechlodration..........................................................................................................................................
(c)
Ozone... ................ ............................ --...........................................................................................
5
(d)
Radiation................................................................................................................................................. 5
j 10) CHEMICAL ADDITION SYSTEMS) ( see definition No. 9) [not applicable to chemical addIiIons rated as hem (3)tj),
(5)(a)(xi),
(6)ja), (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 points each:
List.........................................
.. ...........................,.......................................
.......................... ................................... I —....................•........................................
......................................................................................................................
5
.....................................................................................................................................
5
(1 1) MISCELLANECUS UNfTS/PPOCESSES
(a)
Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials including wastes from
mining
operations containing nitrogen or phosphorus compounds in amounts significantly greater than is common
for domestic wastewater............................................................................................................................4
(b)
Effluent Flow Equalization (not applicable to slotage basins which are inherent In land application systems)
...... 2
(c)
(d)
Stage Discharge (not applicable to storage basins inherent in land application systems)... .............................
Pumps .............................. .............. .................. ....................................................................................
5
(`..33
(e)
Stard-By Power Supply......................................................................................................... ...................
(f)
Thermal Pollution Control Device............................................................................................. ...................
3
TOTAL PCINTS......... .............. ................................. ..................�//.,
CLASSIFICATION
ClassI ................................................ ............................ ............................... 5-25 Points
Class II............................................................................... .26-50 Poinls
classIll........................................................................................................51.65 Points
CI IV ............................................... .66-Up Points
.......................................................
Facilities having a rating of one through four points, inclusive, do not require a certified operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class fl.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a mtn€mum ciassilication of Class 11.
Facilities having ieatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class IIL
-------------------------------------------------------------
.0004 DEFINITIONS
The following delinhlons shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physlcallchemical method for reducing soluble organic material from wastewater effluent; The column-rype beds used in this
method will have a flow rate varying from two to eight gallons per minute per square foot and may be either upl€ow or downilow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant site;
(2) Aerated Lagoons. A basin in which all solids are maintained In suspension and by which biological oxidation or organic matter Is reduced through artilicially
accelerated transfer of oxygen on a flow -through basis;
(3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen In a liquid by spraying, agitation or diffvslon;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of le hours.
(4) Agriculturally managed she. Any site on which a crop is produced, managed, and harvested (Crop includes grasses, grains, trees, etc.);
(5) Air Stripping. A process by which the ammonlurn Ion 1s first converted to dissolved ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; 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 lumace to provide extremely high temperatures which volatilize and oxidize the
absorbed Impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment designed to ac.Neva 'secondary' effluent limits;
(6) Centrifuge. A mechanical device In which centrifugal force is used to separate solids from liquids or to separate liquids of drKerenl denslt;as;
(9) Chemical Addition Systems- The additlon of chemloal(s) to wastewater W an application point for purposes of Improving sods removal, pH adjustment,
alkailnhy control, etc.; the capability to experiment with cldferertt chemicals and different application points to achieve a specific result will be considered one
system; the capability to add chemicals) to dual units will be rated as one system; capability to add a chemical at a different application points for different
purposes will result In the systems being rated as separate systems;
(10) Chemical Sludge CondRloning. The addition of a chemical compound such as Ilme, ferric chloride, or a polymer to wet sludge to coalesce the mass prior to
Its app!€callon to a dewalering device;
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing inorganic, non -toxic materials from sand, gravel,
crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;
112) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nhrificatiors- A single stage system required to achieve permit effluent limits on BOO
and ammonia nirogen within the same biological reactor,
(13) Dechlorinatlon. The partial or complete reduction of residual chlorine In a liquid by any chemical or physical process;
(14) Denhrilication Process. The conversion of nitrate -nitrogen to nitrogen gas;

(151 Eleclrodialysis. Process (or removing lonizod salts from water through the use of ion-salactive ion -exchange membranes;
(16) Filter Press. A process operated mechanically for partially dewalering sludge;
(17) Foam Separation. The planned frothing of wastewater or wastewater effluent as a means of removing excessive amounts of detergent materials through
the introduction of air in the form of line bubbles; also caked foam fractionation;
(18) Grh Removal. The process of removing grh and other heavy mineral matter from wastewater;
(19) Imholl Tank. A deep two story wastewater tank consisting of an upper sedimentation chamber and a lower sludge digestlon chamber.
(20) Instrumented Flow Measurement. A device which Indicates and records rate of flow;
(21) Ion Exchange. A chemical process In which ions from two different molecules are exchanged;
(22) I -and application:
(a) Sludge Disposal. A final sludge disposal method by which wel sludge may be applied to land either by spraying on the surface or by subsurface injection
(Le., chisel plow); (not applicable for types of sludge described in (11) of this Rule);
(b) Treated Effluent. The process of spraying treated wastewater onto a land area or other methods of application or wastewater onto a land area as a
means of Tina} disposal or treatment;
(23) Microscreen- A )ow speed, continuously back -washed, rotating drum filter operating under gravity conditions as a polishing method for removing
suspended solids from effluent;
(24) Nilrif+cation Process. The biochemical conversion of unoxidized nitrogen {ammonia and organic nitrogen) to oxidized nitrogen (usually nitrate);
(25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the specific purpose of converting ammonia nitrogen to nitrate nitrogen;
(26) Phosphats Removal, Biological. The removal of phosphorus from wastewater by an oxic/anoxic process designed to onhance luxury uptake of phosphorus
by the microorganisms;
(27) Polishing Pond. A holding pond following secondary treatment with sufficient detention time to allow sealing of finely suspended solids;
(28) Post Aeration- Aeration following conventional secondary treatment units to increase effluent D.O. or for any other purpose;
(29) Post Aeration, (Cascade) A polishing method by which dissolved oxygen is added to the effluent by a nonmechanical, gravity moans of flowing down a
series of slaps or weirs; The flow occurring across the steps or weirs moves in a fairfy thin layer 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 activty and organic absorption by using powdered or
granular activated carbon; Virgin or regenerated carbon is feed controlled into the system;
(31) Preaeration. A tank conslrucled to provide aeration prior to primary treatment;
(32) Preliminary Units. Unit operations in the treatment process, such as screening and comminution, that prepare the liquor for subsequent major operations;
(33) 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
treatment processes or to effect a partial reduction in load on the treatment process which is cperated by the same governing body as the wastewater
treatment plant being rated;
b) Pre-treatment Program, Industrial - must be a Stale or EPA required program to receive points on the rating shoot;
(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 BOD which is associated with the solids;
(35) Pumps. Alt influenl, effluent and in-p{ant pumps-,
(36) Radiation. Disinfection or sterilization process utilizing devices emitting ultraviolet or gamma rays;
(37) Reverse Osmosis. A ireatmert process in which a heavy contaminated liquid Is pressurized through a membrane forming nearly pure liquid tree from
suspended solids;
(38) Rotating Biological Contractors. A fixed biological growth process in which wastewater flows through tanks in which a series of partially submerged circular
surfaces are rotated;
(39) Sand Fillers:
(a) intermittent Biological. Fihration of effluent following septic tanks, lagoons, or some other treatment process In which further biodecomposhlon is
expected to produce desired effluents; Hydraulic loading rates an these filters are computed In gpolac and have a resulting law gpm/st (less than one);
b) Recirculating biological - the same type of sand filter as defined in Subparagraph (39) (a) of this Rule with the added capability to recycle effluent back
through the sand fther,
(40) Sand or Mixed -Media Fhenz. A polishing process by which effluent limits are achieved through a further reduction of suspended solids;
(a) law rate — gravity, hydraulically loaded lilter with loading rates In the one to three gprrVsi rar•ge;
(b) high rate -- a pressure, hydraulically loaded filer with loading rates in the five gprrVsl range; At any rate, the loading rare wrll exceed three gprrVsf;
(At) Secondary CiaWters. A lank which follows the biological unit cf treatment plant and which has the purpose of removing sludges associated with the
biological treatment units;
(42) Separate Sludge Reaeration. A part of the contact stabilization process where the activated sludge is transferred to a tank and aerated before retuming h
to the contact basin;
(43) Septic Tank. A single -story settling tank In which settled sludge is In contact whh the wastewater flowing through the tank; shall not be applicable for
septic tank systems serving single family residences having capacity of 2,000 gallons or less which discharge to a nitrification field;
(44) Sludge Digestion. The process by which organic or volatile matter and sludge is gasified, liquefied, mineralized or converted into more stable orgartic matter
through the activity of living organisms, which Includes aerated holding tanks;
(45) Sludge Drying Beds- An area comprising natural or artificial layers of porous materials upon which digested sewage sludge Is dried by drainage and
evaporation;
(46) Sludge Elutriation. A process of sludge conditioning in which certain constituents are removed by successive washings with fresh water or part effluent;
(47) Sludge Gas Utilization. The process of using sewage gas for the purpose of heating buildings, driving engines, etc.;
(4a) Sludge Holding Tank (Aerated and Nonaeraled). A tank utilized for small wastewater treatment plants not containing a digester In which sludge may be
kept fresh, and supernatant withdrawn prior to a drying method (La. sludge drying beds); This may be done by adding a small amount of air simply to keep the
sludge trash, but not necessarily an amount that would be required to achieve stabilization of organic matter. A nonaerated tank would simply be used to
decant sludge prior to dewalering and would not allow long periods (several days of detention) without resulting odor problems;
(49) Sludge Incinerators. A fumace designed to bum sludge and to remove all moisture and combustible materials and reduce the sludge to a slerile ash;
(50) Sludge Stabilization (Chemical or Thermal] A process to make treated sludge less odorous and puirescible, and to reduce the pathogenic organism
content; This may be done by pH adjustment, chlorine dosing, or by heal treatment;
(51) Sludge Thickener. A type of Sedimentation tank In which the sludge Is permitted to settle and thicken through agitation and gravity;
(52) Stabilization Lagoor. A type of oxidation lagoon in which biological oxidation of organic manor Is effected by natural transfer of oxygen to the water irom
air (not a polishing pond);
(53) Stand -By Power Supply. On site or portable electrical generating equipment;
(54) Static Screens. A stationary screen designed to remove solids, inciuding nor�b(odogradaUe particulate (fioatabie solids, suspended solids and GOD
reduction) from municipal and industrial wastewater treatment systems;
(551 Tertiary Treatment. A stage of treatment following secondary which is primarily for the purpose of effluent polishing; A settling lagoon or sand or coal Sifter
might be employed for this purpose;
(56) Thermal Pollution Control Device. A device providing for the transfer of heat from a fluid flowing in tubes to another fluid outside the tubes, or vice versa;
or other means of regulating liquid temperatures;
(57) Thermal Sludge Conditioner, A condiioning process by which heal Is added for a protracted period of time to Improve the dewaterablthy of sludge by the
solubilizing and hydravillzing of the smaller and more highly hydrated sludge panicles;
(58) Toxic Materials. Those wastes or combinations of wastes, Including disease -causing agents which after discharge and upon exposure, ingestion, inhalation
or assimilation into any organism, either directly from the environment or indirectly by ingestion through food chain, will cause death, disease, behavioral
abnormalilies, cancer, genetic mutations, physiological malfunctions (Including m.Ounctions in reproduction) or physical deformations, in such organisms or their
ofisprfng; Toxic materials Include, by way of fliustrailon and not limitation: lead, cadmium, chromium, mercury, vanadium, arsenic, zinc, ortho-nitro-chlorobenzone
(ONCE), polychlorinated biphenyis (PCBs) and dichiorodiphanyi trlchloroelhane (DDT); and any other materials that have or may hereafter be determined to have
toxic properties;
(59) Trickling Fihor. A biological treatment unit consisting of a material such as broken stone or rock over which wastewater is distnbuledt A high rate trickling
filter Is one which operated at between 10 and 30 mgd per acre. A law rate trickling filter Is one which is designed to operate at one to four mgd per acre;
(60) Trickling Fitter (Packed Tower). A plug flow type of operation In which wastewater flows down through successive layers of media or filtrate material; Organic
material Is removed corilnually by the active biological fixed growth In each successive layer. This method may produce 'secondary' quality effluent, or may be
adapted to produce a nitrffled effluent;
(61) Vacuum Filter, Ceniri(ugas, or Filter Presses. Devices which are designed to remove excess water from either digested or undlgestad sludge prior to disposal
or further treatment.