WQ0004033_Final Permit_19950519

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
May 19, 1995
Mr. Robert Lee Wilson, City Manager
City of Mebane
106 East Washington
Mebane, North Carolina 27302
Subject: Permit No. WQ0004033
City of Mebane
Land Application of Wastewater Residuals
Alamance & Orange Counties
Dear Mr. Wilson:
In accordance with your application received on March 29, 1995, we are forwarding herewith
Permit No. WQ0004033, dated May 19, 1995, to the City of Mebane for the continued operation of a
wastewater residuals land application program.
This permit shall be effective from the date of issuance until April 30, 2000, shall void Permit No.
WQO004033 issued September 30, 1994, and shall be subject to the conditions and limitations as specified
therein. Please pay particular attention to the monitoring and reporting requirements contained 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 150E of 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 Ms. Angela Y. Griffin at
[phone] ext. 554.
Sincerely,
A. Presto oward, Jr., P.E.
cc: Alamance County Health Department
Orange County Health Department
Winston-Salem Regional Office, Water Quality Section
Winston-Salem Regional Office, Groundwater Section
Raleigh Regional Office, Water Quality Section
Raleigh Regional. Office, Groundwater Section
Brian Wootton, Groundwater Section, Central Office
Training and Certification Unit (no revised rating)
Facilities Assessment Unit
AMSCO, Inc.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled! 1 o% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
RESIDUALS LAND APPLICATION 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
City of Mebane
Alamance County
FOR THE
continued operation of a wastewater residuals land application program consisting of the application of
approximately 263 dry tons per year of residuals from the City of Mebane wastewater treatment facility to
approximately 230 acres of land in Alamance and Orange Counties with no discharge of wastes to the
surface waters, pursuant to the application received on March 29, 1995 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 April 30, 2000, shall void Permit No.
WQ0004033 issued September 30, 1994, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
1. The Winston-Salem Regional Office, telephone number [phone], the Raleigh
Regional Office, telephone number [phone], and the appropriate local governmental
official (county manager/city manager) shall be notified at least twenty-four (24) hours
prior to the initial application of the residuals to a site so that an inspection can be made of
the application sites and application method. Such notification to the regional 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. In addition, the Alamance and Orange County
Manager's office must be notified prior to theu►itial application so that they will be aware
that the operation has commenced.
2. This permit shall become voidable if the soils fail to adequately assimilate the wastes and
may be rescinded unless the sites are maintained and operated in a manner which will
protect the assigned water quality standards of the surface waters and ground waters.
3. The land application program shall be effectively maintained and operated as a non -
discharge system to prevent the discharge of any wastes resulting from the operation of this
program.

4. 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 program.
5. In the event that the land application program is not operated satisfactorily, including the
creation of nuisance conditions, the Permittee shall cease applying residuals to the sites and
take any immediate corrective actions as may be required by the Division.
6. Some of the buffers specified below may not have been included in previous permits for
this land application operation. However, any sites or fields that are included in this
permit, but were approved with different applicable buffers shall be reflagged to comply
with the below buffers. The following buffer zones shall be maintained:
a) 400 feet from residences or places of public assembly under separate ownership for
surface application method; however, the buffer zone requirement may be reduced to a
minimum of 100 feet upon written consent of the owner and approval from the
appropriate DEM regional office,
b) 200 feet from residences or places of public assembly under separate ownership for
subsurface residual injection method; however, the buffer zone requirement may be
reduced to a minimum of 100 feet upon written consent of the owner and the
appropriate DEM regional office,
c) 100 feet from any public or private water supply source, waters classified as SA or SB,
and any Class I or Class II impounded reservoir used as a source of drinking water for
both methods,
d) 100 feet from any streamk classified as WS or B, any other stream, canal, marsh or
coastal waters and any other lake or impoundment for surface application,
e) 50 feet from any streams classified as WS or B, any other stream, canal, marsh or
coastal waters and any other lake or impoundment for subsurface application,
f) 100 feet from property lines for both surface and subsurface application methods;
g) 50 feet from public right of ways for both application methods,
h) 10 feet from upslope interceptor drains and surface water diversions for both
application methods,
i) 25 feet from downslope interceptor drains, surface water diversions, groundwater
drainage systems and surface drainage ditches for both application methods.
7. A copy of this permit shall be maintained at the lased application site when residuals are
being applied during the life of this permit. A spill prevention and control plan shall be
maintained in all residuals transport and application vehicles.
8. Specific residual application area boundaries shall be clearly marked on each site prior to
and during application.
9. No residuals at any time shall be stored at any application site, unless approval has been
requested and obtained from the Division of Environmental Management.
10. Maximum slope for residual application shall be 10% for surface application and 18% for
subsurface applications.
11. When wastewater residuals are applied, the Class A pathogen requirements and site
restrictions in 40 CFR Part 503.32(a) or the Class B pathogen requirements and site
restrictions in 40 CFR Part 503.32(b), and one of vector attraction reduction requirements
in 40 CFR Part 503.33 must be met. Additionally, an evaluation must be performed which
demonstrates the residuals ability to comply with this requirement. Upon request, a copy
of this evaluation must be submitted including all test results and calculations.
2

II. OPERATION AND MAINTENANCE E IREME
The facilities and application sites shall be properly maintained and operated at all times.
2. A suitable vegetative cover, as listed in condition 114, shall be maintained in accordance
with the crop management plan outlined by the local Extension Office of the Department of
Agriculture, or the Soil Conservation Service, or other agronomist, and approved by this
Division.
3. An acceptable pH must be maintained in the soil, residual and lime mixture, greater than
6.0, on all land application sites to insure optimum yield for the crop(s) specified below.
The agronomist shall provide information on the pH best suited for the specified crop and
the soil type.
4. The application rates shall not exceed the following for the specified crops:
QrQp PAN (lb.lacrg/yr.).
Alfalfa
200
Bermuda Grass (Hay, Pasture)
220
Coastal Bermuda
350
Blue Grass
120
Corn (Grain)
160
Corn (Silage)
200
Cotton
70
Fescue
250
Forest (Hardwood & Softwood)
75
Milo
100
Small Grain (Wheat, barley, oats)
100
Sorghum, Sudex (Pasture)
180
Sorghum, Sudex (Silage)
220
Soybeans
200
Timothy, Orchard, & Rye Grass
200
5. No residuals other than the following are hereby approved for land application in
accordance with this permit:
Permit Estimated
Source County Number _ Volume (dry tons/year)
City of Mebane WWTF Alamance NCO021474 263
6. The metal loading rates shall not exceed the following Cumulative Pollutant loading races:
Param�tera
Kilograms
per Hectare
Pounds
per Acre
Arsenic
41
36
Cadmium
39
34
Chromium
3,000
2,677
Copper
1,500
1,338
Lead
300
267
Mercury
17
15
Molybdenum
----
----
Nickel
420
374
Selenium
100
89
Zinc
2,800
2,498
3

7. The pollutant concentrations in the residuals which will be applied to the land shall not
exceed the following Ceiling Concentrations (Dry Weight Basis):
Parameters
sngLk__g
Arsenic
75
Cadmium
85
Chromium
3,000
Copper
4,300
Lead
840
Mercury
57
Molybdenum
75
Nickel
420
Selenium
100
Zinc
7,500
8. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified land applicationfresiduals operator to be in responsible charge (ORC) of
the land application program. The operator must hold a certificate of the type classification
assigned to the land application program by the Certification Commission. The Permittee
must also employ a certified back-up operator of the appropriate type to comply with the
conditions of Title 15A NCAC 8A, .0202.
9. Adequate procedures shall he provided to prevent surface runoff from carrying any
disposed or stored residuals into any surface waters.
10. Surface applied residuals will be plowed or disced within twenty-four (24) hours after
application on lands with no cover crop established.
11. For areas that are prone to flooding or within the 100-year flood elevation, residuals may
be applied only during periods of dry weather. The residuals must be incorporated into the
soil within twenty-four (24) hours after application.
12. Appropriate measures must be taken to control public access to the land application sites
during active site use and for the 12-month period following the last residual application
event. Such controls may include the posting of signs indicating the activities being
conducted at each site.
13. Adequate provisions shall be taken to prevent wind erosion and surface runoff from
conveying pollutants from the residuals application area onto the adjacent property or into
any surface waters.
14. Residuals shall not be applied in inclement weather or until 24 hours following a rainfall
event of 1/2-inch or greater in 24 hours. Any emergency residuals disposal measures must
first be approved by the Division of Environmental Management.
15. Residuals shall not be applied to any land application site that is flooded, frozen or snow-
covered.
16. Residuals shall not be applied at rates greater than agronomic rates, unless authorized by
the Division.
17. Animals shall not be grazed on an application site for 30 days after residuals application.
Application sites that are to be used for grazing shall have fencing that will be used to
prevent access after each application. _
4

18. Food crops, feed crops and fiber crops 1hat dQ not comen contact with e miduals shall
not be harvested for 30 days after residuals application.
19. Food crops with harvested pans that touch the residual/soil mixture and are totally above
the land surface (ex. tobacco, melons, cucumbers, squash, etc.) shall not be harvested for
14 months after residuals application.
20. Food crops with harvested parts below the surface of the land (root crops such as potatoes,
carrots, radishes, etc.) shall not be harvested for 20 months after application of residuals
when the residuals remain on the land surface for four (4) months or longer prior to
incorporation into the soil.
21. Food crops with harvested parts below the surface of the land shall not be harvested for 38
months after application of residuals when the residuals remain on the land surface for less
than four (4) months prior to incorporation into the soil.
22. Turf shall not be harvested for 1 year after residuals application if the turf is to be placed on
land with a high potential for public exposure.
MONITORING AND REPORTING REQJJIREMEXTS
1. Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue
analyses) deemed necessary by the Division of Environmental Management to insure
protection of the environment will be established and an acceptable sampling and reporting
schedule shall be followed.
2. Proper records shall be maintained by the Permittee tracking all application activities.
These records shall include, but are not necessarily limited to the following information:
a. source of residuals
b . date of residual application
c. location of residual application (site, field, or zone #)
d. method of application
e. weather conditions (sunny, cloudy, raining, etc.)
f. soil conditions
g . type of crop or crops to be grown on field
h. volume of residuals applied in gallons/acre, dry tons/acre or kilograms/hectare
i. annual and cumulative totals of dry tons/acre of residuals, annual and cumulative
pounds/acre of each heavy metal (which shall include, but not be limited to arsenic,
cadmium, chromium, copper, lead, mercury, molybdenum, nickel, selenium and zinc),
annual pounds/acre of plant available nitrogen (PAN), and annual pounds/acre of
phosphorus applied to each field.
3. A representative annual soils analysis (Standard Soil Fertility Analysis) shall be conducted
of 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
Calcium
Copper
Magnesium
Base Saturation (by calculation)
Cation Exchange Capacity
Manganese Potassium
Percent Humic Matter Sodium
pH Zinc
Phosphorus
5

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.
Arsenic
Cadmium
Chromium
Lead
Mercury
Molybdenum
Nickel
Selenium
4. A residuals analysis will be conducted annually from the date of permit issuance by the
Permittee and the results maintained on file by the Permittee for a minimum of five years.
If land application occurs at a frequency less than annually, a residuals analysis will be
required for each instance of land application.
The residuals analysis shall include but is not necessarily limited to the following
parameters:
Arsenic
Aluminum
Cadmium
Ammonia -Nitrogen
Chromium
Calcium
Copper
Nitrate -Nitrite Nitrogen
Lead
% Total Solids
Mercury
pH
Molybdenum
Phosphorus
Nickel
Plant Available Nitrogen (by calculation)
Selenium
Potassium
Zinc
Sodium
Magnesium
TKN
5. A Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted by the
Permittee annually. The TCLP analysis shall include the following parameters (please note
the regulatory level in mg(L in parentheses):
Arsenic (5.0)
Benzene (0.5)
Carbon tetrachloride (0.5)
Chlorobenzene (100.0)
Chromium (5.0)
m-Cresol (200.0)
Cresol (200.0)
1,4-Dichlorobenzene (7.5)
1, 1 -Dichloroethylene (0.7)
Endrin (0.02)
Hexachlorobenzene (0.13)
Hexachloroethane (3.0)
Lindane (0.4)
Methoxychlor (10.0)
Nitrobenzene (2.0)
Pyridine (5.0)
Silver (5.0)
Toxaphene (0.5)
2,4,5-Trichlorophenoi (400.0)
2,4,5-TP (Silvex) (1.0)
Barium (100,0)
Cadmium (1.0)
Chlordane (0.03)
Chloroform (6.0)
o-Cresol (200.0)
p-Cresol (200.0)
2,4-D (10.0)
1,2-Dichloroethane (0.5)
2,4-Dinitrotoluene (0.13)
Heptachlor (and its hydroxide) (0.008)
Hexachloro-1,3-butadiene (0.5)
Lead (5.0)
Mercury (0.2)
Methyl ethyl ketone (200.0)
Pentachlorophenol (100.0)
Selenium (1.0)
Tetrachloroethylene (0.7)
Trichloroethylene (0.5)
2,4,6-Trichlorophenol (2.0)
Vinyl chloride (0.2)
6. All residuals included in this permit must be monitored annually, from the date of permit
issuance, for compliance with condition I i 1 of this permit. Data to verify stabilization and
vector attraction reduction of the residuals must be maintained by the Permittee. The
required data is specific to the stabilization process utilized, but should be sufficient to
0

clearly demonstrate compliance the Class A pathogen requirements in 40 CFR Part
503.32(a) or with the Class B pathogen requirements and site restrictions in 40 CFR Pay.-t
503.32(b), and one of vector attraction reduction requirements in 40 CFR Part 503.33. In
addition, the EPA certification statements concerning compliance with pathogen
requirements, vector attraction reduction requirements and management practices must be
completed annually by the proper authority or authorities if more than one is involved,
either the person who prepares the residuals, the person who derives the material, or the
person who applies the residuals.
7. Three copies of all required monitoring and reporting requirements as specified in
conditions III 1, III 2, III 3, 1114, III 5 and III 6 shall be submitted annually on or before
March 1 of the following year to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
8. Noncompliance Notification:
The Permittee shall report by telephone to the Winston-Salem Regional Office, telephone
number.[phone], the Raleigh Regional Office, telephone number [phone],
as soon as possible, but in rio 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 with the land application program which results in the land application
of significant amounts of wastes which are abnormal in quantity or characteristic.
b. Any failure of the land application program resulting in a release of material to receiving
waters.
c. Any time that self -monitoring information indicates that the facility has gone out of
compliance with the conditions and limitations of this permit or the parameters on
which the system was designed.
d. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate residual treatment.
e. Any spillage or discharge from a vehicle or piping system transporting residuals to the
application site.
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 REQUIREMENIS
1. The COMPLIAKE 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).
7

In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the
disposal systems midway between the Compliance Boundary and the perimeter of the
waste disposal area. Any exceedance of standards at the Review Boundary shall require
remediation action on the part of the Permittee.
2. Any groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
3. No land application of waste activities shall be undertaken when the seasonal high water
table is less than three feet below land surface.
V . INSPECTIONS
1. The Permittee or his designee shall inspect the residuals storage, transport, and application
facilities to prevent malfunctions and deterioration, operator errors and discharges which
may cause or lead to the release of wastes to the environment, a threat to human health, or a
nuisance. The Permittee shall maintain an inspection log or summary including at least the
date and time of inspection, observations made, and any maintenance, repairs, or corrective
actions taken by the Permittee. This log of inspections shall be maintained by the Permittee
for a period of five years from the date of the inspection and shall be made available to the
Division of Environmental Management or other permitting authority, upon request.
2. 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 application 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 kept under the terms and conditions of this permit; and may obtain samples of
groundwater, surface water, or leachate.
VI. GENERAL CONDITIONS
1. This permit shall become voidable unless the land application activities are carried out in
accordance with the conditions of this permit, the supporting materials, and in the manner
approved by this Division.
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 automatically transferable. In the event that there is a desire for the
facilities to change ownership or 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.
0

4. The following are approved sites for residuals application (see attached map(s)):
Application Area [acres]
Site No. Ownet/LesseQxlbuffers)
09-011,2
Walter Wyatte, Sr.
2.81
09-021
15.69
09-03
9.60
09-041
3.82
10-01
Carl Walters
58.30
10-02
10.52
10-03
29,47
10-04
5.37
13-03
George Chockley
8.50
13-05
8.20
13-06
5.60
13-07
6.10
18-01
James Nicholson/Thomas L. Nicholson
34.50
18-02
17.50
18-03
14.50
TOTAL AVAILABLE ACRES
230.48
- These fields shall be buffered against drainage ditches located in the field.
2 - The section of field in tobacco must be rotated and not have sludge applied within 18
months.
5. 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).
6. 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 15 NCAC 2H .0205
(c)(4).
7. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
8. 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.
9. This permit may be modified, or revoked and reissued to incorporate any conditions,
limitations and monitoring requirements the Division of Environmental Management deems
necessary in order to adequately protect the environment and public health.
LJ

10. This permit shall become voidable unless the agreements between the Permittee and the
landowners/lessees are in full force and effect_ The land owner agreements are considered
expired concurrent with the expiration date of the permit and must be renewed at the same
time the permit is renewed.
Permit issued this the 19th day of May, 1995
NORTH CAROLINA ENVIRONMENTAL MANAQEMENT COMMISSION
6
A. Preston floward, Jr., P.., Director
Division onvironmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0004033
1141

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46
_ RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility:
ccwcy`
-.Qwher or Contact Person,
Mailing Address: �� (, �, Z
.57- _LZ2 ,,, 2
County: A Z�.�� 1.- �_ _—_Telephone:_a
) Sz .? -- t= /V/
Present Classification: _
New Facility
Existing Facility t_�
NPDES Per. No. NC00 Nondisc. Per. No.WQ Q L~'3
Health Dept.Per No.
Rated by: _ tJ ,_ J �..s
Te#ephone: �.-?,l -
c�7 Date:_ �- 7
Reviewed by:
Health Dept.
Telephone:
Regional Office
Telephone: 7eo7
Central Office
Telephone:
ORC:-- - -%f ,'K�tl ; e
Grade: :1�
Teleph ne:
Check Classification(s): Subsurface
Spray Irrigation
L,-'-Land App!ication
Wastewater Classification: (Circle One) I
11 III IV
Total Points:
-------------------------------------------------------------
7 C , F
caz Y' TI." 'T
I
I Y OF SEFTIC TAW
LND GELVITY IV'TRI TICATK]J LINES ARF FxEME El3Qb CtASSIE'ATION
SUBSURFACE GLASSIFICATK]N
(chec3s all units that apply)
1. septic tanks
2. pump tanks
3, siphon or pump -dosing systems
4. sand filters
5. grease trapfinterceplor
6. oillwater separators
7. gravity subsurface treament and disposal:
6. pressure subsurface treatment and disposal
-t ------------------------------
SRPAY IPPC - ATION C! ASSIFICATIUN
(check all units that apply)
1. preliminary treatment (delinition no. 32 )
2. lagoons
3. septic tanks
4. pump tanks
5. pumps
6. sand tillers
7. grease trapAnterceptor
S. oil/water separators
Q_ —,disinfection
10. chemical addition for nutrientlalgae control
1i. spray irdgaiton of wastewater
In addition to the above classifications, pretreatment of wastewater In excess of these components shrill
be rated using the point rating system and will require an operator with an appropriate dual certification.
LAND AP�ATIOWR€SIDUALS CLASSIFICATION {Applies only to permit holder)
I. L/ Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACILITY CLASSIFICATION
The following systems shall be assigned a Class I classification, unless the flow is of a significant quantity or the technology is unusually
complex, to require consideralion by the Commission on a case -by -case basis: (Check if Appropriate)
1. OiVwaler 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 fitters, disinfection
and direct discharge;
3, Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -loop Recycle Systems;
5. Groundwater Remediation Systems consisting only of oillwater separators, pumps, air -stripping, carbon adsorption, disinfection
and 6spc,.J;
6. Aquaculture operations with discharge to surface waters; _
7. Waler Plant sludge handling and back -wash water treatment;
a. Seafood processing consisting of screening and disposal.
9. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified if permitted alter July 1,
19a3 or if upon inspection by the Division, r, is found that the system is not being adequeieiy operated or mainla:ned. Sucre
systems will be nolified of the classification or reclassification by the Commission, in writing,

.................
dlflusedor mechanical............................................................................... ......................2
(m)
Reverse Osmosis ........................ ............... ................... ..................................... .............................5
(n)
Sand or Mixsd-Media Filters - low rote..........................................................................................................2
hightale ......................................................................5
(a)
Treatmers processes for removal of metal of cyanide.. ... ......................................................................... I ... 1 5
(p)
treatment processes for removal of toxic materials other than metal or cyanide..............................................15
(7)
SLUDGETREATMENI
•
(a)
Sludge Digestion Tank -Heated (anaerobic) ...............................................................................................1 D
Aerobic....................................................................... .......... 5
Unheated(anaerobic)..............................................................................................................................3
(b)
Sludge Stabifization (chemical or thermal)...................................................................................................5
(c)
Sludga Drying Beds - Gravity.........................--...........................................................................................2
VacuumAssisted .......................... .............................. ...-................,.................-.................................-.....5
(d)
Sludge Eluldaiion.....................................................................................................................................5
(el
Sludge Conditioner (chemical or thermal)........................................................................ ............................ 5
If)
Sludge 'Thickener (gravity).............................................................................................................. ..........5
(g)
pisso!ved Air Flotation Unit (not applicable to a unit rated as(3)(i)]............. ............................. ................... a
(r)
Sludge Gas Uliiization (including gas storage).............................................................................................2
(i}
Sledge Holding Tank - Aerated...................................................................................................................5
Nor,-aerated............................................................................................................................................. 2
O)
Sludge Incineralor (not including activated carbon regeneration)................................................................1 D
(l'.)
Vacuum Fher, Centrifuge, or Filter Press or other similar dewatering devices............................................_.....I C
2)
PAS :�, A.,S
U-rIL!ZATION/DISPOSAL (including incinerated ash)
(a;
Lagoons............................................................................................................................ 2
(t;
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land application oe-r::
or landlitl permit .................................
(c)
Dedicaled Landfili(burial) by the permhtee of the wastewater treatment lacrlity. ....................................,.........5
(9)
Dts FCTt7N
(a)
Chlorination...................................................................•-•---•----------....................................................5
(b)
Dechlorination..........................................................................................................................................5
(c)
Ozone......................................................................................................................................................5
(r)
Radiation........... 5
(1 C)
C^=_Y.+CAi ADDITION SYSTEM(S) ( see definition No. 9) [not applicable to chemica' addrtions fled as hem (3)1,,;.
i),
(6)(2), (6)(b), (7)(b). (7)(e), (9a), (9)(b) or t9)(c) 5 points each:
Lis'
...............................................................................................................................5
................................................................................................................................ 5
........... .......... ......................... .................. I ....... ...—..--........-. ...............5
{ 1 1)
A1..S;__i.F.:t�0.1,5 UfJTSPr?,7CESSES I;
(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
fordomestic wastewater............................................................................................................................4
(h)
Effluent Flow Eq',;alizatlon (not applicable to storage basins which are inherent In lard applicallon systems) ...... 2
(c)
Stage Discharge (not applicable to storage basins inhererd In land application systems)..........„......................5
(d)
Pumps.....................................................................................................................................................5
(a)
Stand -By Power Supply.............................................................................................................................3
(f)
Thermal Po{iulion Control Device................................................................................................................�
TOTALPOINTS.... ..................................... ........................ I .......
ClamI ... ........................................ ............. ................................................... 5-25 Points
Gass11 ................................................................................ ........ ................. 26-50 Points
ClassIt! ........................................................................................................51.65 Points
ClassN.......................................................................................................66-Up Points
-------------------------------------------------------------
Faciifties having a rating of one through four points, Inclustve, do not require a cerlliied operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class If.
Facilities having treatment processes for the rentovai of metal or cyanide will be assigned a minimum classification of Class II.
Facililies having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class III.
-------------------------------------------------------------
AC04 DERNTIONS
The following definnions shall apply throughout this Subchaptor.
(1) Acliyaled Carbon Beds. A physical/Chemical method for reducing soluble organic material from wastewater allluard; The column-typia beds used in this
method will have a flow raja varying from two to eight gailons per minute per square foot and may be either upllow or downflow carbon beds. Carbon may or
may not be regenarmed on the wastewater lrealmerit plant site;
(2) Aerated Lagoons. A basin in which all solids are maintained in suspension and by which biological oxidation or organic matter Is reduced through artificially
acceleraled transfer of oxygen on a flow -through basis;
(3) Aeration. A process o1 bringing about Intimate contact between air or high purify oxygen In a liquid by spraying, aghation or ditiusion;(32) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of iB hours.
(a) Agricufturally managed she. Any site on which a crop Is produced, managed, and harvested (Crop Includes grasses, grains, trees, etc.);
(5) Air Stripping. A process by which the ammonium Jon Is first convened 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 xyferte;
(E) Carbon Fiegeneratlon. The regeneration of exhausted carbon by the use of a iumace to provide extremely high temperatures which voiaillize and oxidize the
absorbed impurities;
(7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent Ilmhs;
(6) Centrifuge. A mechanical device In which centrifugal force Is used to separate solids from liqu;ds or to separate liquids of different densities;
(9) Chemlcaf Addition Systems- The addhlon of chemicals) to wastewater md an applicalSon point for purposes of Improving solids removal, pH adjustment,
-16afin4y control, etc.; the capability to experiment with different chemicals and different application points to achieve a specific resuh will be considered one
am; the capability to add chemicaJ(s) to dual untls will be rated as one system- capabilhy to add a chemkaJ at a different application points for different
uses will result In the systems being rated as separate systems;
i:CJ Crremical Cl,idge Conditioning. The addition of a Chemical compound such as Ilme, ferric chloride, or a polymer to wet sludge to eoales.-e the -LZss pnor to
Its application to a dewalering device;
(11) Closed Cycle Systems. Use Of holding ponds or holding tanks for containment of wastewater containing inorganic, non-loxic materials from rand, gravel,
crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other amur,erances;
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A single stage system raquired to achieve pe,-n' e"`:uern i;-nils on BOD
and ammonia nhrorgen within the same biological reactor,
(13) Dechlorinatlon. The pa,lial of complete reduction of residual chlorine In a liquid by any chemical or physical process;
(14) Denhr'icatlon Process- The conversion o1 nlirale•nitrogen to nitrogen gas;