WQ0003090_Final Permit_19950726

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
July 26, 1995
Ms. Sandra Dixon, Interim Town Manager
Town of Liberty
P.O. Box 1006
Liberty, NC 27298
Dear Ms. Dixon:
C)EHNF: 10
Subject: Permit No. WQ0003090
Town of Liberty
Wastewater Spray Irrigation Facility
Randolph County
In accordance with your renewal request received February 24, 1995, we are forwarding herewith
Permit No. WQ0003090, dated July 26, 1995, to the Town of Liberty for the construction and operation
of the subject wastewater treatment and spray irrigation facilities. Please note the new groundwater
monitoring requirements listed in section IV and the modified application rate specified in condition 11.7.
This permit shall be effective from the date of issuance until June 30, 2000, shall void Permit No.
WQ0003090 issued July 10, 1993, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring requirements in this permit. Failure to establish
an adequate system for collecting and maintaining the required operational information will result in future
compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer
27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
If you need additional information concerning this matter, please contact Mr. Ray Co)Pat (919)
733-5083, ext. 549.
Sincerely,
C0_�.G ; ��' �Cd�C.
�r
A. Presto Howard, r., P.E.
cc: Randolph County Health Department
Winston-Salem Regional Office, Water Quality Section
Winston-Salem Regional Office, Groundwater Section
Brian Wootton, 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% post -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 THE
Town of Liberty
Randolph County
FOR THE
continued operation of a 0.55 MGD spray irrigation treatment and disposal facility consisting of a bar
screen, a parshall flume, and influent lift station with three (3) 815 gpm pumps, approximately 1,000
linear feet of 10-inch force main, a 15-acre stabilization and storage lagoon with 88 days of storage at the
design flow, chlorination facilities, dual 1,830 gpm vertical diffusion vane irrigation pumps with
approximately 3,460 linear feet of 8-inch force main, a solid set irrigation system with a wetted area of
approximately 158 acres, and all the associated piping, valves and appurtenances to serve the Town of
Liberty, with no discharge of wastes to the surface waters, pursuant to the renewal request received
February 24, 1995, and in conformity with the project plan, specifications, and other supporting data
subsequently Bled 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 June 30, 2000, shall void Permit No.
WQ0003090 issued July 10, 1993, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
1. 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 REQ111REMENTS
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.
5. Adequate measures shall be taken to prevent wastewater runoff from the spray field.
b. 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 0.21 inches per hour.'
Note: In the period from December through March, a reduced loading rate shall be applied
to zones 3 and 8 as necessary to prevent runoff and operational problems. The Operator in
Responsible Charge's discretion shall be utilized to determine the lesser rate.
2

S. No type of wastewater other than that from the Town of Liberty 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.
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 15-acre lagoon shall not be less than 1.5 feet at any time.
III. MONITORING AND REPORTING REQUIREMENTS
1. 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, Lul,y and November (if irrigation occurs during the calendar
months) for the following parameters:
BOD5 TS S
Fecal Coliform pH
NH3 -N
The effluent from the subject facilities shall be monitored annually by the Permittee at a
point prior to irrigation for the following parameters:
NO3
Boron
Total Nitrogen
Phosphorus
Copper
Sodium
Nickel
Magnesium
Zinc
Calcium
Lead
SO4
Chlorine
Potassium
Cadmium
Chromium
Mercury
Arsenic
Conductivity
Plant Available Nitrogen
Sodium Adsorption Ratio (SAR) by Calculation*
* The SAR value should be utilized as an indicator of potential problems with the spray
irrigation fields which may result from an excessive level of sodium ions in the soil. An
SAR value greater than 10 may induce the need for remediation of the spray irrigation
fields using a soil conditioner such as gypsum, dolomitic lime or a magnesium salt.
Condition 111.4, below, provides more guidance on whether remediation is necessary.
3

4. A representative annual soils analysis (Standard Soil Fertility Analysis) shall be conducted
for each site receiving residuals in the respective calendar year and the results maintained on
file by the Permittee for a minimum of five years.
The Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the
following parameters:
Acidity Manganese Potassium
Calcium Percent Humic Matter Sodium
Copper pH Zinc
Magnesium Phosphorus
Base Saturation (by calculation)
Cation Exchange Capacity*
* If sodium levels in the soil are greater than 10% of the CEC, remediation of the
spray irrigation fields should be initiated using a soil conditioner such as gypsum,
dolomitic lime or a magnesium salt.
The Standard Soil Fertility Analysis (see above) and an analysis for the following metals
shall be conducted once prior to permit renewal on soils from each site which has received
sludge during the permit cycle.
Cadmium Lead Nickel
5. 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 Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
6. Noncompliance Notification:
The Permittee shall report by telephone to the Winston-Salem Regional Office, telephone
number [phone], as soon as possible, but in no case more than 24 hours or on the
next working day following the occurrence or first knowledge of the occurrence of any of
the following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such as
the dumping of the contents of a 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
4

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.
IV. GROUNDWATER REQUIREMENTS
1. Within 60 days of permit issuance, monitor wells MW-1 and MW-3 shall be abandoned in
accordance with 15A NCAC 2C .0113 (Abandonment of Wells). A well abandonment
record (form GW-30) must be submitted to the Winston-Salem Regional Office upon
abandonment of the monitor wells.
2 Within 60 days of permit issuance, two (2) new monitor wells, designated as MW-5 and
MW-6, shall be installed to monitor groundwater quality. Monitor well MW-5 shall be
constructed upgradient of the waste disposal areas, possibly near the municipal park, west
of the spray fields. Monitor well MW-6 shall be constructed in the vicinity of the existing
monitor well MW-1 (to be abandoned). The proposed locations of the two (2) new
monitor wells must be presented to and reviewed by the Winston-Salem Regional Office as
stated in condition IVA below. The well(s) 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.
3. 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.
4. The Winston-Salem Regional Office, telephone number [phone], shall be notified
at least forty-eight (48) hours prior to the construction of any monitoring well so that an
inspection can be made of the proposed monitoring well location. Such notification to the
regional groundwater supervisor shall be made during the normal office hours from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding state holidays.
5. The two (2) new monitor wells, MW-5 and MW-6, and the two (2) existing monitor wells,
MW-2 and MW-4 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 Fecal Coliform
SO4
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-600/4-88/039
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/l are detected in any downgradient monitoring
well, additional sampling and analysis must be conducted to identify the individual
constituents comprising this TOC concentration. If the TOC concentration as measured in
the background monitor well exceeds 10 mg/l, this concentration will be taken to represent
the naturally occurring TOC concentration. Any exceedances of this naturally occurring
TOC concentration in the downgradient wells shall be subject to the additional sampling
and analysis as described above.
If any volatile organic compounds are detected by Method 6230D, or the equivalent Method
502.2, then the Winston-Salem Regional Office Groundwater Supervisor, telephone
number [phone], must be contacted immediately for further instructions regarding
any additional follow-up analyses required. The results of all initial and follow-up analyses
must be submitted simultaneously.
The 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.
6. 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 all components 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 f/- 10 feet. All other features listed in a.
through e+ above shall be surveyed relative to this horizontal control monument. The
positional accuracy of features listed in a. through e. above shall have a ratio of precision
not to exceed an error of closure of 1 foot per 10,000 feet of perimeter of the survey. Any
features located by the radial method will be located from a minimum of two points.
Horizontal control monument shall be installed in such a manner and made of such
materials that the monument will not be destroyed due to activities that may take place on
the property. The map shall also be surveyed using the North American Datum of 1983
coordinate system and shall indicate the datum on the map. All bearings or azimuths shall
be based on either the true or NAD 83 grid meridian. If a Global Positioning System
(GPS) is used to determine the latitude and longitude of the horizontal control monument, a
GPS receiver that has the capability to perform differential GPS shall be used and all data
collected by the GPS receiver will be differentially corrected.
The 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.
.n

7. 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.
8. 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.
9. The monitor wells must have identification plates and locks securing the wells against
unauthorized access and use.
10. The monitor wells need to be protected against damage (from machinery, grazing animals,
etc.) during construction and use.
11. 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.
12. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
V . INSPECTIONS
1. Adequate inspection, maintenance, and cleaning .shall be provided by the Permittee to
insure proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities
to prevent malfunctions and deterioration, operator errors and discharges which may cause
or lead to the release of wastes to the environment, a threat to human health, or a nuisance.
The Permittee shall 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 I. GENERAL ONDITY N
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.
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.
Permit issued this the twenty-sixth day of July, 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston H ward, Jr., P.E , Director
Division of En ironmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0003090

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RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: 1_0lcl0 0
Owner or Contact Person: _ . rA V i v/on 4 ..� Nf _6r t A""C ated a 41G
Mailing Address: FD &< (n06 _
County: CAZ_______jelaphone: ! o- G ?-
Present Classification: C'.�A -11 New Facility Existing Facility C
NPDES Per. No. NC00 Nondisc. Per. No.WQ oDo3090 Health DepLPer No.
Rated by: rt�A Telephone: „4 o 0 Date:�.� 9
Reviewed by: Health Dept. Telephone:
4,� Regional Office Telephone: .96
/n} ,, Central Office Telephone:
ORC:, 1.�.,t"J_. NiR,tt-�, Grade: Telephone:1JQ-4zz—a-550
Check Classification(s): Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One) I it ill IV Total Points: 2G►
�• as a � - f. = .•` f.l i '-r:� r .:. .� ems.. � ' !. :a `� !' �•.. �1 • � Jf. :•.
rr : �lte up` w � � . J a: �.. � . ? a. e.•..
SUBSURFACE CLAZ K ATK)N
(check all uryits that supply)
1, septic tanks
2 pump t w'"
3 _aiphon or pu;m doslr►g systems
4-sand Mors
5. ,��grease Ira.pinteroaptor
6 01LIW ter a.cparodora
7. gravity subwrfare treatment and dsposal:
8. pressure subsu rf ace tre ad m ent and d ispaaal
SLAY trtF;lG4Tt i CLASSY F CAM N
(check all unhs that apply)
1. preliminary treaimard (defir tion W. 32
5. _!septic tanks
4 y �pernppUtnim
54 tom ..'
6-sand f1ham
7-grease tr•aofintarceplor
0. oIl/water separators
9. X disinfection
10. chemicaf addition for nvtrie�ntlalgera control
11.X_s.prey k6gafion d waslewaler
In addition to the above classlficstfons, pretreatment of wastewater In excess of these components shell
be rated using the point rating system and will require an operator with an appropriate dual certification.
LAND APPLICATIONIRESIDIIALS CLASSIFICATION (Appf;es only to permit hoiden}
I. Land appficalion of biosolids, residuals or conlaminale-d sobs on a designated site.
WASTEWATER TREA7M-=PJ FACILITY CLASS� FMTI)N
The following systems shall be asslgned t Class I classNication, unlL­s the flow Is of a slgniiicanl quantily or the lachnoiogy is unusually
complex, to require consideration by the Commission on ■ case -by -case basis: (Check if Approprwe)
1. OiVwater Separator Systems consisting only of physics] sepwaflon, pumps and disposal;
2- Septic Tankl$and Fiher Systems consisting only of sepllc tanks, dosing apparatus, pumps,sand Ulters, di"ection
and deed discharge,-
9. lagoon Systems oansisling only of prefiminary treatment, Iagoons, pumps, disinfection, necessary chemical lrealmerd for
algae or nutrlenl control, and direci discharge;
4�Closed-loop Recycle Systems;
5. Groundwater Flemedalion Systems consisting only of ofVwater separators, pumps, air -stripping, carbon adsorption, disinledbn
and dispose;
8. Aquacutture operatlons whh discharge to surface wafers;
7, Waler Mani sludge handling and back -wash water treaimerd;
S. �Sealood processing Consisting of screening and disyipmal,
9 Single-family discharging systems, with the exception of Aerobic Treatment Units, will be ciassi jed H permitted after July 1,
1993 or 11 upon tnspedion by V)e DWslon, h is found that the sys<em Is not being adequately operaiod a maintained. Such
systems will be notified of the claasKicaflon a re classKicalion by the Commission, In writing.

The following scale is eased for feting wastewater treatment facilities: (circie appropriate points)
� � rotr,trs
(1)
frdv-lrw Pretreatmart L1nRs or lindustrtal Protmatmem Progam (am ds mkn n No.
(2)
DESIGN
FLDW OF PLANT IN gpd [not aWlIc." 10 norn-oontan"ted oaoinp ■caws, sledge handing facMies for
crater purification ptanaz, lotalF dosed cyde ty nn*see der"wWon No. 11j and !acuities owalslirtg or>'ly of lam
(4){d) W Items (4)(d) and (11)(4))
0 - 201000—
...,_1
20,001 50,000
$0,001 - 100,000.
100,001 250,000 . _ .
A
250.001 • If o0,o00-
1,D00,001 - 2,000.000_ _
2,000.001 (and trp} 1 nt add kwW for each 200.000 gpd cap, Ity up W a MuLerwm of _70
Design Flow (god
.(3)
PRP-1MNARY UNITSMFOCESSES ase clv rilon NLQ
(a)
Bar SCrWU
or
(b)
Wch4nical Sa"nis, SutSc Saxon or Commirarthg Davloss
2
of
(d)
L#adrankal or Aeraed Oft Aw"oval
(e}
Flaw V*=ff*^p Lrevlow
or
(1)
inrtrumerdsd P,** Measurement
-2
( g )
Pre aarallon..._—____2
2
(h)
firdlvart Flow SquatIzzbon.
(1)
Orsase er 04 Separators - araviiy
.2
Mechanlcal..
Dtraolved Ar Floc.sulon __
()}
Prechiorivllcn....___
L
(4)
PFOAkRYTAEA71.ENTLNrrSMFCCt
(a)
Seplk Tank (a" dsfMlon No. 43)
(b)
knhotl Tank_... .
_5
(o)
Primary Clar:iens-
—5
(d)
SaION Ponds or Set ling Tanta for rxagaric Non loxlc 16faterith (sludge handlirq facftrs for water
purification ptutx, land, grrvea, alone, and ather nilr, r "rwiors except rsasXianal activhies such
as gem
or Qofd
—2
(6)
8ECCMARY'TFL-ATM2gT
(a)
Carbonazeout sage
(1) Asratlor-High Pvrhy Oxygen System+ _
1)0
DlffuLad Air System.,-.___...—...,.._.. _.. _
10
Mrischankal Alr Syttam (11xed, !Seam or rotor} r
a
Separate 5iud24 ReawzWn.
2
(R} Trh*wg flitsr
High Acts_
Standard Rals-
Packed Tower______
5
(P EbloVcal Awalsd F14er or Asrated fblologkal FMdr
10
(iv) A,sralsd Iagoons......_..__10
10
(v) Rotating Biological Conlaaor -
"
(vi) Sand F91ers-kiltmilrterd biological - --- ----- - - -
2
Raclrculating bloloq#cad
(1riJ S1abnUatbn Ligoons_�
.._..._........................ ---
(Ix) Singls -taoe syslsm for mmbrwd c.arbonaceova removal d BOO and nhrogenous removal by
1lhrtfrcation (ass delinhSon W. 12XPokds 1tx this rem have to be In add'6on to kemt
(5)(a)o) through
artlltzing the ealended aerailon prooaLL (tee denrAlon No3a)
utilizing other than the extended aeration proc"s.
..•
(t) Nutrierf ad6lions to enhance SOD removal.. ___—__--
.S
(xl) Slologkal Culture ('Svper Bugt-oddhion.
(b)
N)trogsnovs Stage
(1) Aeration - High Purity Oxygen sys*m
�0
DWusad Air
Mechankal Ail Sytttm (nixed, tloallng or rotor)
r
Separate Sludge Re.aanz1bn._-_,____
(p) Trickling FUter-High Rate.^ - - -- --- -
7
Standard Rate_
Packed Tower......._.
Blologlcal Aerated Flltar or Aeraled Bloiogkal FIller
10
IV) Rotating Biological Conlactors
_10
e} Sand Rehr - Lmermhfert blo"kal__M_
Rocirculaling Wologleal
-
(i)
TERTWWORAWAI. EDTREATMENT LiliffSPFCCaSB�
(a)
ActNaled Carbon Beds -
wflhout carbon mpneratbn..,.,_,..
-- -9
whh carbon rapeneratlon.._ ,..----1E
(b)
Powdered or Granular AclWted Carbon Food-
wtlhoul carbon reper>eralloR
R
with carbon regerwrallon...., _..._._...-16
(t}
Air stripping
J5
NnhrtfirjlionPracwet_
rw
10
#d)
e)
Eieclrndlalytta. ._.....�...._..��....._.W ..._.�.....__..�...._............� ._...�_.S
(1)
Foam Ssparallon _ .. .._ _ _ __ ___5
(2)
kn Exchange........... _.... .... __. - .. _... ....-- _. ., _
- %
(h)
Lard Applrcallon or Treated ENuort (see deflnAlon No. 22b) (not apprkabia for Land, grzvsl alone
and other stmllxr mining oparatioru) by high rale inRitratlon�_, __ ..
�)
Prnsphnrvus Removal by Blotogkai Processes (See 6&Wlon No. 26}_ _ _ __... , .-
__ .. _20
Pollshing Ponds - trrtlhout aeralkwL—
__2
wIth aeratkn.._-_

Oflused or machartical.
(m)
Rwerse 0s.mosis..,.. __ M_ .... __._.. ...3
(n)
Band or hued-Mied'ta Filters - how rats..
high rate .. _... _. 3
(0)
Troalmerx processes for removal of metal or eye ride...»«._ .`
( p )
tmatrner>t proco aas for rwnoval of toxic mat"Is other than rre+tal or cyanide. .1 5
(7)
SWCOETFEATMENT
(a)
Sludge Digestion Tank - Hsued (arwarobk) --- --- 10
Aerobic�.._......._._.._.... .. ... ...««.... » _ _ « . ..«_ _. ._. .3
Unhealed
(b)
Sludge Stabilization (chemical or
(6)
Sludge Dying Beds-Gravhy».....«.................r_......._..._....................................__._....._......2
Vacuum
(d)
Sludge
(a)
Sludge Conditioner (chemical of thermal) S
(1)
Sludge 'Thickener
(g)
Diswh d Air Flotation Unh roof applicable to a unit rued as
(h)
Sludge Gas Lftillzation (including gas storage).. —2
(1)
Sludge Holding Tank Asratod...»...-.»»._ ._ .. .3
Norraertdsd........ .. ......................._.___.........._2
())
Sludge hciner=tor (not including activaled carbon 0
(k)
Vacuum Filer, CentrHuge, or Fhar Press or other slmilar dowalering devices. 0
(E)
FiESIDUAL.S LJT LIZAT10WDISPOSAL Cnduddrg Inckoraled ash)
(a)
Lagoons. .... ........ .. ..
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or 4and9il opamtor who holds the land appikatlon permit
or Lac ll
(c)
-Dedicated LarKhfi)I(burial) by the parmhtas of the wastewater treatmord tactihy-
(9)
(a)
Chbrina on
(b)
Qac!-Joriration................,_.._�..._.................................................................................»......._.._......_........5
(c}
Ozone. ��._....,�._....__.........«.«...................,_....._...�.,..».............................................__...5
(d)
............. _... .. _.. .. _.. _._._.. _ 3
(1 0)
CHEMICAL ADDrrK)N SYSTEM(S) ( ass definhion No. C) (rot applicable to chemical addhbns rated as Item (3)(j),
(6)(a). (6Xb). (7)(b), (7)(s), (Da), (g)(b) or (9)(c) b points Mach,
List
(11)
I,=ELLANECUS LWS/PROCESSE
(a)
Holding Fonds, Holding Tanks or Sattling Ponds for Organic or Toxic Ivtmerials including wastes from mining
operations containing nitrogen or phosphorus compounds In amourns slgnifkartly greater than in common
Joe domesttc wastewater... ._. ,.. - ....... ._..........«..._..................... _.. _....__.... _ 4
(b)
Etfluent Faw Equartzation (not applkmbis to storage basins which are V&word in Lard application systemc).r2
(c)
Stage D=harge (not applicable to storage baslrs Inherent In land application s)stems)..
(a)
Stud By Power
(f)
ThemrW Pollution Corxrol
TOTAL PCXNTS............«
CLASSF7t;AMIN
Polms
Class IL__ ....................26.50 Points
cam 11. _«_ _ .. « « _, �.»».... _ _. �._ �_.. 51 65 Polrits
----------------------------------------------------
PolrI&
FadllFes having a rating of one through four points. InclvOys, do not require a certified operator.
Facilities laving an aciN-aled stodge procsw" wtf be ass4nad a rrinimum classNkatbn of Ckss IL
Facilities having treatment prvossms for the removal of metal or cyanide will be assigned a minimum cWsslSlrmion of Class tL
Faclkias herring troor ert processss for the biological removal of phosphorus will be asatgned a minimum ciassf cation of Class Ill.
----------------------------------------------------------
.DM4 DEFNITIC#S
The following cWf nhlons shall appiyy throughout this Subchapler,
(1) Act Haled Carbon Bads. A phryalcaVchem'cal method for reducing soluble organic material from wamawater effluent; The column -tyke beds used In this
method win have a flow raja varying from two to eight gallons par minute per square foot and may be shher upilow or downfiow carbon beds. Carbon may or
may not be rageneraied on the w2oowmar treatment plant she;
(2) Aerated Lagoons. A basin In which all sorbs are malntalned in suspension and by whkh biological oxidation or organic matter Is reduced through LnFiictalty
accelers'ed transfer of oxYgen on a flow -through basis;
(3) Aaralbll A process of bringing about iNLmala contact batween air or high purity oxygen In a dquld by spraying, agitation or dlf7ustonX34) ExtarxW
Iteration. An activaled sludge process utlilzirv? a minimum hydraulic detsnl)on time of 16 hours.
(I) Agrlcuhurally managed site. Any also on which a crop Is produced, managed, and harvasled (Crop hncludas grasses, grains, trees, air,);
(5) Air Slripptng. A process by which the ammonium ion Is first converted to dissolved ammonia (phi adjustment) with the ammonia then released to the
atmosphere by physical means; or other slmlz: processes which remove petroleum products such as benzene, toluene, and xylene;
(6) Carbon Snansration. The regeneratlon of exhausted carbon by the use of a furnace to prov)da oxirsmefy high ternparuures which votatplze and oxidize the
absorbed fmpurftlse;
(7) Carbonaceous Stage. A singe of waslewater treatmeni desfgned to'achtieve'secondary' slllueni >Imhs;
(8) Centrifuge. A machank-a oevlte In which mnfrtfugal force Is used to separate solids frorrt-fiqulds or to separate liquids of dtflererrt derxt..ar,
(9) Chemical Addition Systems- The addiction of chemical(s) to wastewater a1 an application point for purposes of Improvlrg sorsds removal, pH adjustment,
sjkallnhy control, e1c.; the carf.ablllty to exper6-rsnt with tfitlerern chemicals and 01fereri appl%ztioh points to achieve a spechIc rmuF will be considered one
system; the capability to add chemical(s) to dual unha w1V be ratad as one system; capability to add a chomk:&I at a different application points for different
purposes wilt resuh In the systems being rated as separate "SMS;
(10) Chemical Sludge Conditioning. The ad'u'. ion of it chemkal compound such as ". ferric chloride, or a polymer to wet sludge to coalesce the mass prior b
As appr;atlon to a dewatering device;
(11) CEosad Cytie Systems. Use of holding ponds or holding tanks for containment of wastewater ccntaln)ng inorganic, norn•toxlc rruterlals from sand, graysk
crushed store of other slmltar oporsiions. Su:h systems shaft carry a maximum of two points regardlers of pumping fac)Ihles or any other appurtenances;
(12) Combined Removal of Carbonaceous 130D and Wroganous Removal by NhMicWiorr, A single slage system required to achieve pem-kt effluent Tvnhs on BOD
and amnnnla nhrogen within the same Mofa;-tal reactor,
(13) DecNorfnatlon_ The parlial or cornpsete reducilon of residual chlorine In a liquid by any chemical or physical protsss;
(14) Denlriticallon Process, The conversion of nitride-nhroaen to riLrogen gas;