HomeMy WebLinkAboutWQ0000783_Final Permit_19940803State 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
August 3, 1994
Mr. Sam Carteret, Owner
S & B Maintenance, Incorporated
3579 Lewis Loop Road, SE
Bolivia, North Carolina 28422
Subject: Permit No. WQ0000783
S & B Maintenance, Incorporated
Land Application of Wastewater Residuals
Brunswick County
Dear Mr. Carteret:
In accordance with your application received on December 29, 1993 and February 21, 1994, we
are forwarding herewith Permit No. WQ0000783, dated August 3, 1994, to S & B Maintenance,
Incorporated for the continued operation of a wastewater residuals land application program.
This permit amendment consists of the renewal of the existing permit, the addition of four (4)
sources; Carolina Power & Light Company, WWTP (new), Carolina Power & Light Company, WWTP
(old), Town of Yaupon Beach WWTP, The Arboretum WWTP and the addition of approximately 22.5
acres in Brunswick County.
Please be advised of Condition VI 7 which states that, "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."
This permit shall void Permit No. WQ0000783 issued June 10, 1993 and shall be effective from
the date of issuance until July 31, 1999, 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 150B 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.
P.O. Box 29535, Raleigh, North Carolina 27626-05335 Telephone 919-733-7015 FAX 919-733-2496
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper
If you need additional information concerning this matter, please contact Ms. Angela Y. Griffin at
(919) 733-5083.
Sincerely,
A. Pres n Howard, Jr., P.E.
cc: Brunswick County Health Department
Mr. Bill Dunlop, Law Engineering, Wilmington, NC
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Jack Floyd, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit
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
S & B Maintenance, Incorporated
Brunswick County
FOR THE
continued operation of a wastewater residuals land application program consisting of the application of
approximately 430,000 gallons per year (18 dry tons) of residuals from the the facilities listed in Condition
No. II 4 to approximately 56 acres of land in Brunswick County with no discharge, of wastes to the
surface waters, pursuant to the application received on December 29, 1993 and February 21, 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 void Permit No. WQ0000783 issued June 10, 1983 and shall be effective from
the date of issuance until July 31, 1999, and shall be subject to the following specified conditions and
limitations:
I. PERFORMANCE STANDARDS
1. The Wilmington Regional Office, telephone number (910) 395-3900, 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 Brunswick
County Manager's office must be notified prior to the initial 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 small 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 streams 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 for
sites permitted prior to August 3, 1994; however, this requirement may be reduced to
50 feet upon the applicants formal request for a permit amendment and submittal of
revised maps for each site reflecting the revised buffer and acreage,
g) 50 feet from property lines for both surface and subsurface application methods for
sites permitted on or after August 3, 1994,
h) 50 feet from public right of ways for both application methods,
i) 10 feet from upslope interceptor drains and surface water diversions for both
application methods,
j) 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 land 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.
2
II.
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.
OPERATION AND MAINTENANCE REQUIREMENTS
The facilities and application sites shall be properly maintained and operated at all times.
2. A suitable vegetative cover, as listed in condition H 4, 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:
CT012 PAN Ob.lacrelyr
Alfalfa
200
Bermuda Grass (Hay, Pasture)
220
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
River Run Shopping
Center WWTP
Brunswick
NCO060291
10,000
Timber Creek WWTP
Brunswick
WQ0000193
10,000
Central Plant
Brunswick
WQ0001538
10,000
Caswell Dunes
Brunswick
90/0134831
10,000
Dutchman Creek
Brunswick
267621
10,000
Oak Island Beach
Villas
Brunswick
WQ0000490
30,000
K'
n
7.
Permit Estimated
Source County Number ., Volume (dry tons/year)
Clairmont Shopping
Center
Brunswick
NC0058599
10,000
Oyster Bay Utilities
Brunswick
12490R
30,000
Brunswick County
Chromium
3,000
2,677
Hospital
Brunswick
WQ0003017
100,000
Brunswick Co.
267
Mercury
17
Leland Ind. Park
Brunswick
NC0065676
30,500
Oak Island Beach
420
374
Selenium
Villa
Brunswick
1
7,500
Sandpiper Bay Golf
Course WWTP
Brunswick
WQ0006313
10,000
Dixie Boy Truck
Stop (76 Station)
Brunswick
NC0065307
10,000
Yaupon Beach WV* P2
Brunswick
WQ0005790
90,000
The Aboretum
Brunswick
WQ0000474
20,000
CP&L (Old Plant)
Brunswick
NC0007064
21,000
P&L ew Plant
Brunswick
N 95
21,000
Total Gallons Per Year 438,000
Facilities permitted by the Division of Environmental Health.
2 No sludge shall be land applied to lands permitted herein until the Permittee submits
a sludge analysis to the Wilimington Regional Office, and approval for land
application of these residuals has been granted.
The metal loading rates shall not exceed the following Cumulative Pollutant loading rates:
Parameters
Kilograms
per Hegtare
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
The pollutant concentrations in the residuals which will be applied to the land shall not
exceed the following Ceiling Concentrations (Dry Weight Basis):
Parameters mg/kg
Arsenic
75
Cadmium
85
Chromium
3,000
Copper
4,300
Lead
840
Mercury
57
Molybdenum
75
0
Parameters mg/kg
Nickel 420
Selenium 100
Zinc 7,500
8. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified land application/residuals 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 be 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.
18. Food crops, feed crops and fiber crops that do not come in contact with the residuals shall
not be harvested for 30 days after residuals application.
19. Food crops with harvested parts 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.
5
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 REQUIREMENTS
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 Manganese Potassium
Calcium Percent Humic Matter Sodium
Copper pH Zinc
Magnesium Phosphorus
Base Saturation (by calculation)
Cation Exchange Capacity
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
0
Nickel
Selenium
4. A residuals analysis will be conducted annually on each residual listed in Condition 115
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
After the residuals have been monitored for two years at the above frequency, the Permittee
may submit a request to the Division for a permit modification for the reduction of the
frequency of monitoring for pollutant concentrations and for the pathogen density
requirements, but in no case shall the frequency of monitoring be less than once per year
when residuals are applied to the land.
5. All residuals included in this permit must be monitored annually, from the date of permit
issuance, for compliance with condition 111 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
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 Part
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.
After the residuals have been monitored for two years at the above frequency, the Permittee
may request a permit modification for the reduction of the frequency of monitoring for
pollutant concentrations and for the pathogen density requirements, but in no case shall the
frequency of monitoring be less than once per year when residuals are applied to the land.
7. Three copies of all required monitoring and reporting requirements as specified in
conditions III 1, III 2, III 3, 111 4, III 5 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
7
8. 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 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 REQUIREMENTS
1, 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.
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.
4. The following are approved sites for residuals application (see attached map(s)):
Application Area [acres]
Site No. Owner/Lessee (excluding buffer
001 Sam Carteret 33.5
002 Sam Carteret 22.5
TOTAL AVAILABLE ACRES 56.4
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).
2
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.
Permit issued this the 3rd day of August, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
&'14 , LO . C��SL
A. Preston Howard, Jr., RE), Director
Division of Environmental Management
By Authority of the Environmental Management Commission
Permit No. WQ0000783
10
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11
rjATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL_ SYSTEMS
Name of Facility: as -
Owner or Contact Person:
Mailing Address:
^ounty: �1'lef' S'�-UlG'� Telephone: j
:sent Classification: New Facility Existing Facility
NPDES Per. No. NCOO Nondisc. Per. No.WQL� 7J� Health Dept.Per No.
Rated l;;f: A. r I;_7 -- _ Telephone:Date: '�5l
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telep one:
Check Classification(s): Subsurface Spray Irrigation Land Application
Wastewater Classification: (Circle One) 1 II III IV Total Points:
IN -PLANT PROCESSES AND RELATED CONTROL. EOUIPME14T V4ri-ifCH ARE AN INI EGRAL PART OF INDUSTRIAL PRODUCTION SPALL
NOT BE CONSIDERED WASTE TREATMENT FOR THE PURPOSE OF CLASSIFICATION ALSO SEPTIC TANK SYSTEMS CONSISTING
CNI_Y OF SEPTIC TANK AND 0RAVITY NITRIFICATION LINES ARE EXEMPT FRSSIFIQAjLQN.
SUBSURFACE CLASSIFICATION
(check all units that apply)
1- seplic tanks
2,-p ump tanks
3. siphon or pump -dosing systems
4.sand fillers
5 _ grease trap/interceptor
6. oil/water separators
_gravity subsurface treatment and disposal:
pressure subsurface treatment and disposal
SPRAY IRRIGATION C:tAS&FICATION
(check all unirs that apply)
1.
preliminary treatment (definition no. 32 }
2.
lagoons
3.
septic tanks
4.
pump tanks
5,
pumps
6.
sand filters
7.
grease trapFinterceplor
8.
oil/wafer separators
9,
disinfection
10,
chemical addilion for nutrient/algae controi
11.
spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater in excess of these
components shafl be rated using the point rating system and will require an operator with an
appropriate dual certification -
LAND APPUCATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. t" Land application of biosolids, residuals or conlaminaled soils on a designated site.
-------------------------------------------------------------
WASTEWATER TREATMENT FACILIT'i CLASS1RCATION
The lotlowing systems shall be assigned a Class i classilicalion, tZa[e; the flow is of a significanl quantity or the technology is
unusually complex, to require r_onsideration by the Commission on a case-by-case basis: (Check if Appropriate)
1, Cil/water Separator Syslems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Filter Systems consisling only of septic tanks, dosing apparatus, pumps,sand filters, disinfec'.ion
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical
treatment for algae or nutrient conirol, and direct discharge;
4, Closed-loop Recycie Systems;
5, Groundwater Remedialion Systems consisting only of pumps, air -stripping, carbon adsorption, disinfection and
disposal;
6. Aquacullure operalions with discharge to surface waters;
7. Wale( Plant sludge handling and back -wash waler trealmc;r':
_Seafood processing cons] -fling of screening and disposal.
_Single-family discharging systems, wilh the exception of Aerobic Trealmenl Units, will be classified if permitted
aper July 1, 1993 or if rrpon inspection by Ih2 Division, it is lound Thal the sys:ern is not being adequately oper2ied
or mainlained. Such systems will be nolilied of the classificalion or reclassilicalien by the Commission, in wriling,
-F
The fallowing scale is used for rating waslewaler -eatment facilities. (circle appropriate
pains)
ITEM POINTS
( 1 )
Industrial Pretreatment units or Industrial Pretreatment Program (see definition No, 33) ...................................................4
(2)
DESIGN
FLOW OF PLANT IN god (not applicable to non-xnlaminaled cooling walers, sludge handling
facilities
lot water purification plants, totally closed cycle syslems(see definition No. 11), and lacflilies
consisting only of Item (4)(d) or Items (4)(d) and (11)(d))
0 - 20.000.......................................................................................................................................1
20,001 - 50.000......................................................................................................................................2
50.ao1 - 100,000..................................................................................."I................................................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) rale 1 point additional for each 200,000 gpd capacity up to a
maximumof ........................................................................30
Design Flaw (gpd)
(3)
PRELIMINARY
UNITS/PROCESSES (see definition N0.32)
(a)
Bar Screens...............................................................................................................................................1
or
(b)
Mechanical Screens, Static Screens or Comminuting Devices..........................................................................2
(c)
Grit Removal..............................................................................................................................................1
or
(d)
Mechanical or Aerated Grit Removal..............................................................................................................2
(s)
Flow Measuring Device ................................................................................................................................1
or
(1)
Instrumented Flow Measurement.................................................................................................................2
(g)
Preaeralion............................................................................................................... ..... ...........................
2
(h)
Influent Flow Equalization..........................................................................................................................2
(f)
Grease or Oil Separators - Gravity.................................................................................................................2
Mechanical................................................................................................................................. ......3
DissolvedAir Flotation................................................................................................................................8
(11
Prechlorinalion..........................................................................................................................................5
(4)
PRMARYTREATMENiLNrr&PROCESSES
(a)
Septic Tank (see delindlion No. 43)............................................................................................................2
(b)
Imholf Tank .............. ..................................................................................... ......... ..................................
,5
(c)
Primary Clarifiers..........................................................................................................................................5
(d)
Settling Ponds or Settling 7anks for Inorganic Non-toxic Materials (sludge handling facilities for
water purification plants, sand, gravel, stone, and other mining operations except recreational
activities such as gem or gold mining)........................................................................................................2
(5)
SECONDARYTREATMJYTUNITS+PPOCESSES
(a)
Carbonaceous Stage
(i) Aeration -High Purity Oxygen System...............................................................................20
DiffusedAir System.......................................................................................................10
Mechanical Air System (fixed, floating or rotor).,. ............................................................... a
Separate Sludge Reaerallon.............................................................................................3
(ii) Trickling Filler
HighRale..................................__.......................................................,.........................:.7
StandardRate................................................................................................................5
PackedTower.................................................................................................................5
(iii) Biological Aerated Filter or Aerated
BiologicalFRer................. ..................................................................................... .......
1 0
(fv) Aerated Lagoons..........................................................................................................10
(v) Rotating Biological Contaciors.......................................................................................10
(vi) Sand Fillers -intermittent biological..................................................................................2
Recirculating biological .............................. ....................................................................... 3
(vii) Stabilization Lagoons.....................................................................................................5
(viii) Cianlier........................................................................................................................
...5
(ix) Single stage system lot combined carbonaceous removal of 800 and nitrogenous
removal by nitrification (sea definition No. 12)(Points for this item have to be in
addition to items (5)(a)(i) through (5)(a)(viii),
utilizing the extended aeration process (see definition No.3a)...........................................2
utilizing other than the exiended aeration process............................................................8
(x) Nutrient additions to enhance 800 removal......................................................................5
(xi) Biological Culture ('Super Bugs')addilion........................................................................5
(b)
Nitrogenous Stage
(i) Aeration - High Purity Oxygen System.............................................................................20
DiffusedAir System.......................................................................................................1
0
Mechanical Air System (lixed, floating or rotor)..................................................................8
Separate Sludge Reaeration .............................................................................................3
(Ii) Trickling Filler -High Rate...................................................................................................7
StandardRate................................................................................................................5
PackedTower.................................................................................................................5
(iii) Biological Aerated Filter or Aerated Biological Filter............................................................
10
(iv) Rotating Biological Contactors......................................................................................10
(v) Sand Filler - intermittent biological...................................................................................2
Recirculating biological.....................................................................................................3
(vi) Clarffer............................................................................................................5
(6)
TERTIARY OR ADVANCED TREATMENT UNrrStPROCESSES
(a)
Activated Carbon Beds -
wilhoutcarbon regeneration....................................................................................................5
with carbon regeno;alicn.......................................................................................................15
(b)
Powdefed or Granular Aciivaled Carbon Feed•
without carbon regeneralion..................................................................................................5
withcarbon regeneration............................ .........................................................................1
5
(c)
Air stripping........................................................... ..........
(d)
DenivficauonProcess..............................................................................................................................t0
(0)
Electrodialysis................................................. ......... ..................................................................................
5
( I )
Foam Separation........................................................... ............................................. ...........
5
-----------------------------------------------------------
Ps having a rating of one through four points, inclusive, do not require a certified operator.
as having an activated sludge process will be assigned a minimum classification of Class 11.
is having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class J.
3s having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class 111.
-----------------------------------------------------------
.FINITIONS
Ywing definitions shall apply throughoul this Subchapter.
salad Carbon Beds. A physicalrchemical method for red,uing soluble agark material from wastewater elnuent; The column type bads used in this method will have
ala varying from two to eight gallons per minute per square foot and may be either upnow or downitow carbon beds. Carbon may or may not be regenerated on the
iter Ireatment plant site;
lad Lagoons. A basin in which all solids are maintained in suspension and by which txalogical oxidaton or organic matter is reducad through artincialiy accelerated
of oxygen on a ilow-through basis;
lion, A process of bringing about intimale contact between all or high purily oxygen in a liquid by spraying, agitalion or dirfusion;(aa) Extended Aeration. An
I trudge process oilizing a minimum hydraulic detention dma of is hours.
,Ily managod site. Any site on which a crap is produced, managed, and harvested (Crop includes grasses, grains, trees, etc.);
3. A process by which the ammonium Eon is firs[ converted to dissolved ammonia (pH adjuslmerr4) with the arrvnonia Sian released to the atmosphere by
or other simlllar processes which remove POV049M products such as banzene, toluene, and xylene;
.hogeneration, Tho regeneration of echausted carbon by the use of a furnace to provide oalremely Kgh temperatures which voia4liza and oxidize the absorbed
s;
onacecus Stage. A stage al wastewater treatment dasigned to achieve -secondary- elhueni limits;
rihlgo. A mochanical dance in which carriMugal force is used to separate solids Irom liquids or to separate liquids or didierent deresipas;
nical Addtlion Systums• 7`,,e addjlion of chomical(s) to wasldwater at an application pointe Ior pwposus of improving solids rer.-oiat, pH ad;vstmen( alkatiniry cm!rol,
capability to experiment with diduren: chvndcats and o:rerent appncacon points to achieve a specinr result will be conside.Pz one system, the capability 10 add
ueunniurt rvu. eeof Irlot appucaole for rano,
gravel, stone and other similar mining operations) by high ratalnliltratlon.....................................................A
(1)
Microscreons.............................................................................................................................................5 _ t
O)
Phosphorous Removal by Biological Processes (See delinitlon No. 26).........................................................20
(k)
Polishing Ponds - without aeration............................................................................................................2
with aeration ................. ....................................................................................5
(I)
Post Aeration - cascade..............................................................................................................................0
diffusedor mechanical........................................................................................................2
(m)
Reverse Osmosis ......................................... ................................................................................................
5
(n)
Sand or Mixed -Media Fillers - low rate..........................................................................................................2
highrate......................................................................5
(o)
Treatment processes for removal of metal or cyanide...................................................................................1
5
(p)
treatment processes for removal of toxic materials other than metal of cyanide..............................................15
(7)
SLUDGETREATMENT
(a)
Sludge Digestion Tank • Healed (anaerobic)...............................................................................................10
Aerobic.....................................................................................................................................5
Unhealed(anaerobic)................................................................................................................................3
(b)
Sludge Stabilization (chemical or thermal)....................................................................................................5
(c)
Sludge DryingBeds- Gravity......................................................................................................................2
VacuumAssisted......................................................................................................................::...............5
(d)
Sludge Efulriation.................................................................................................................... .................
.5
(e)
Sludge Conditioner (chemical or thermal)...................................................................................................5
�
(f)
Sludge Thickener (gravity)..........................................................................................................................5
(g)
Dissolved Air Flotation Unit [not applicable to a unit rated as(3)(i)).............................................................8
(h)
Sludge Gas Utilization (including gas storage)..............................;..............................................................2
(i)
Sludge Holding Tank - Aerated....................................................................................................................5
Non-aeraled............................................. ............................................................................................ .....2
[ [ }
Sludge Incinerator (not Including activated carbon regeneration)................................................................10
(k}
Vacuum Filter, Centrifuge, or Filter Press or other similar dewatering dovices...................................................t
0
{ 8 }
RESIDUALS LIT ILIZATIONIDISPOSAL (including Incinerated ash)
(a)
Lagoons. ....... ............... .....................................................................2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the land
application parmit or landfill permit..............................................................................................................2
(c)
Dedicated Landlitl(burial) by the permittee of the wastewater treatment faciiily...............................................5
(9)
DI,SIfr+-EC
CN
(a)
Chlorination.............................................................................................................................................5
(b)
Dechlorinalion....................................... .................................................................................... ................5
(c)
.
Ozone......................................................................................................................................................5
(d)
Radiation..................................................................................................................................................5
(10)
CHEMICAL
ADDITION SYSTEM(S) ( see definition No. 9) [not applicable to chemical additions rated as Ilam
(3)(j),
(5)(a)(xi), (6)(a), (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 points each:'
Lis[
.....................................................................................................................................5
....................................................................................................................................5
................................................... ....................................... I ...................... , ..................5
.........................................................................I...............................................5
(1 1)
MISCELLANEOUS UNi TSIPPAGESSES
(a)
Hulding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials including wastes
Irom mining operal€ons containing nitrogen or phosphorus compounds in amounts significantly
greater than Is common far domestic wastewater.........................................................................................4
(b)
Effluent Flow Equalization (not applicable to storage basins which are inherent in land application
systems)..................................................................................................................................................
(c)
Stage Discharge (not applicable to storage basins Inherent in land application systems) .................
(d)
Pumps....................................................................................................................... ........................3
(a)
Siand-By Power Supply.............................................................................................................................3
(f)
Thermal Pollution Control Device.................................................................................................................3
TOTAL POINTS..........................................................................
CLASSIFICATION
Glass1...........................................................................................................5-25 Points
Class11 ........................................................ ................................................. 26-50 Points
classIII ................................. ........................ ............................................... 51-65 Points
Class IV............................................................. ... 66 -Up Points
-----------------------------------------------------------
Ps having a rating of one through four points, inclusive, do not require a certified operator.
as having an activated sludge process will be assigned a minimum classification of Class 11.
is having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class J.
3s having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class 111.
-----------------------------------------------------------
.FINITIONS
Ywing definitions shall apply throughoul this Subchapter.
salad Carbon Beds. A physicalrchemical method for red,uing soluble agark material from wastewater elnuent; The column type bads used in this method will have
ala varying from two to eight gallons per minute per square foot and may be either upnow or downitow carbon beds. Carbon may or may not be regenerated on the
iter Ireatment plant site;
lad Lagoons. A basin in which all solids are maintained in suspension and by which txalogical oxidaton or organic matter is reducad through artincialiy accelerated
of oxygen on a ilow-through basis;
lion, A process of bringing about intimale contact between all or high purily oxygen in a liquid by spraying, agitalion or dirfusion;(aa) Extended Aeration. An
I trudge process oilizing a minimum hydraulic detention dma of is hours.
,Ily managod site. Any site on which a crap is produced, managed, and harvested (Crop includes grasses, grains, trees, etc.);
3. A process by which the ammonium Eon is firs[ converted to dissolved ammonia (pH adjuslmerr4) with the arrvnonia Sian released to the atmosphere by
or other simlllar processes which remove POV049M products such as banzene, toluene, and xylene;
.hogeneration, Tho regeneration of echausted carbon by the use of a furnace to provide oalremely Kgh temperatures which voia4liza and oxidize the absorbed
s;
onacecus Stage. A stage al wastewater treatment dasigned to achieve -secondary- elhueni limits;
rihlgo. A mochanical dance in which carriMugal force is used to separate solids Irom liquids or to separate liquids or didierent deresipas;
nical Addtlion Systums• 7`,,e addjlion of chomical(s) to wasldwater at an application pointe Ior pwposus of improving solids rer.-oiat, pH ad;vstmen( alkatiniry cm!rol,
capability to experiment with diduren: chvndcats and o:rerent appncacon points to achieve a specinr result will be conside.Pz one system, the capability 10 add
chomical(s) to dual units will be rated as ons system; capability to add a chemical at a diflerent application points for different purposes will radii In the systems being
rated as separate systems;
(10) Chemical Sludge Conditioning. Tha addition of a chemical compound such as time, ferric chloride, or a pafymer to wet sludge to coalesco the mass prior to its
app!icalion to a dewalering device;
(11) Closed Cycle Systems, Use of holding pends or hoiarrg tanks for containrnenl of wastewater containing Inorganic, non-toxic materfa!s horn sand, gravel• crushed
alone of other similar operations. Such systems shall carry a maximum of two paints regardless of pumping Iaciiides or any other appurtenances;
(12) Combined Romwval of Carbonaceous BOD and Nitrogenous Removal by Nil hcalion- A Ongla stage system required to achievo permit effluent limits on BOD and
ammonia nitrogen within the same biological reactor;
(13) Dachiorinalion, The partial or cornplalo reduction of residual chlorine in a liquid by any chemical or physical p(ocess;
(14) Derilrificalion Process. The convarsion of nitrale-.^.ltroger. to nitrogen gas;
(15) Electrodialysis. Process lot romoving Ionized sails horn wafer ity"N the use of ton -selective ton -exchange membranes;
(16) Filler Press, A process csr..ereled mechanl:ally for partially dewatering sludge;
(17) Foam Separation. The pifniad tattling of wastewater or wastewater anuerht es a means of removing excessive amourris ort detergent materials through the
Introduction or air In the form of fine bubbles; also called foam fractionation;
(to) Grit Removal. The process al removing gdl and clher hoavy mineral matter from wastewater;
(19) IrMoff Tank. A deep two story wzslowater lana; coraigliN of an upper sedimentation chamber and a lower sludge digestion chamber.
(20) Instrumented Flow Msasuxemanl A device which indicates and records rate of flow;
(23) Ion Exchange. A chemit0 process in which Ions from two different molocafes are oxchangsd;
(22) Ward aoplication:
{a) Sludge Disposal. A final sludge disposal method by which wet sludge may be applied to !end either by spraying on the srxface or by subsurface Injection (i.e..
chisel plow): (riot applicable for types or sludge described in (11) of this Rue];
(b) Treated Eliluer-4, The process of spraying trealed wastewater onto a land area cr other methods or application of wastewater onto a land area as a means or Gnal
disposal or treatrmoml;
(23) Microscreen. A low speed, cantirxuously track -washed, rotating drtxn filler operating under "vitt' conditions as a polishing method for removing suspended solids
from effluent;
(24) Nilrificafon Process, The biochemical conversion of unoxidzed nitrogen (ammonia and organic nitrogen) to oxidized nitrogen (usually nitrate);
(25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the specific pwposa or converting ammonia nitrogen to nitrate nitrogen;
(26) Phosphate Removal, Piofeglcal. The removal of phosphorus from wastewater by an oxlt/anoxic process designed to enhance luxury uptake of phosphorus by the
microorganisms;
(27) Poiishing Pond. A holding pored following secendary treatment widh sulficienl detention time to allow setting of finely suspended solids;
(28) Post Aeration. Aefalion following conventional secondary noalmani units to increase elfluen; D.O. or for any other purpose;
(29) Post Aeration. (Cascade) A polishing method by wNch dissolved oxygen is added to no e;huent by a normochanieal, gravity means or flawing down a series of
slops or waits; 'The flow occurring across the slops or weirs moves in a fairly Nn Sayer and the opera Son or the cascade requires no operalor adjustment: thus, zero
points are assigned oven though Iris is an essential step to meeting he limits of the discharge permit;
(3o) Powdered to Granular Activated Carbon Feed. P. biophysical carbon process thal utilizes biological activity and organic absorption by using powdered or granular
activated carbon; Virgin or regenerated carbon is feed controlled into She system;
(31) Proaeralion. A tar* constructed to provide aeration prior Io primary treatment;
(32) Preliminary Urils. Unit operations in the treatment process, such as screening and comminution, that prepare the liquor far subsequent major operations;
(3a) Industriai P(etrealmwrtt.
fa) Pre-trea!:rhan; Uril, Industrial. The conditioning of a waste at its Source before discharge, to remove a 10 nreutraliza substances injurious to sewers and treatment
procossss or to olleet a partial rodue!ion In load on she treatment process which Is operalad by the same 9ovef6ng'6hdy as Me wastewater treatment plant being
haled;
b) Pre-trsalmonl Program, Industrial - must be a State or EPA roquired program to receive points on the rating shoot;
(34) Primary Cfar4iers, The first selling tanks through which wastewater Is passed in a treatment works far the purpose of removing settleable and suspended solids and
BOO which is associated with the solids;
(35) Pumps. AT[ influent, ettluent and in•planl pumps;
(36) Radhation. Disinfection or sterilization process utilizing devices emitting ultraviolet or gamma rays;
(37) Reverse Osmosis. A Uealmen; prccass in which a heavy conlarninated liquid is pnessurizod through a membrane farming nearly pure liquid free from suspended sairts;
(3E) Rotating Biological Contractors. A fixed biological growth process in which wastawalei Tows throauah tanks in which a sories of partially submerged ctfcular surfaces
are rotatod-
(39) Sand f=ilters:
(a) Intermittent Biological. Fillration or effluent loltowing septic lanks, lagoons, or some other treatment process in which It.-Cwr biodecomposition is expected to
produce desired o luents; Hydraulic loading rates on these fillers are computed In glad/ac and have a resulting low gpmrsl Voss nan ono);
b) pucircula6ng biological - the same ]•vine of sand filter as definod In Subparagraph (39) (a) cf this Fula with fie added capability to recycle effluent back through the
S" filter;
(40) Sand or Mixod•Media Malars, A polishing process by which effluent limits are achieved through a hurtho; reduction of suspandad solids;
(a) low rate -- gravity, hydraulically loaded filter with loading rales in the one 13 three gpm/sl range;
(b) high rata •• a pressure, hydraulically loaded filler with leading rates in na live gixWsf range; Al any rate, the loading rale will exceed throe gpnvsh
(41) Secnndary Ciari`ors. A tank which follows the biological unit of treatment plant and which has the .purpose of removing sludges associated with the boiogical
treatment units;
(42) Saparat9 5!udae Reaera8on. A part of the contact stabilizaton process where the activaleci sludge is transferred to a tank and aerated bolero returning it to the
contact basin;
(43) Septic Tank. A single-slory settling tank in which settled sludge is in contact vrith the was!ewaler Ilowirfg through the tank; shall not be applicable lot saplic lank
syslem- serving single lar:ily nasidences 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 sludga is gasified, liquefied, minetalized or convarted into more slate organic mallor Ih•ough
no activity of living organisms, which includes aerated holding tanks;
(45) Sludge Drying Beds. An area comprising naltxai or artificial layers or porous materials upon which digoslad sewage s;udge is dried by drainage and evaporation:
(46) Slu'dga Elutriation. A process or sludge condtiorY g in which cerlain conssluenls are removed by successive washings with fresh wafer or plant sBluanl:
(47) Sludgo Gas Utfizalion. The Process of using sewage gas for the purpose or heating twitdhngs, driving anginas, etc.;
(48) Sludge Holding Tank (Aaraled and Nonaerated). A tank utilized for small waslawaler treatment plants not conalring a digesler in which sludge may be kept fresh•
and supernatant withdrawn prior to a drying method (i.s. sludge drying beds); This may he dote by adding a small amount of air simply to keep ^w sludge fresh, but nor
necessarily an amouyd that woad be rewired to achiave staUilizaliun or organic matter. A nonaeraled tank world simply be used to decant afudga prior to dewatering and
would not Allow long periods (several days al detention) without resulting odor problems;
(4g) 11L,,719y Incinerators. A furnace designed to burr. sl•ud99 and to remove all masture and cornbuWA9 malerials and reduce the sludge to a sterile ash;
(50) Stuc99 Stabilix•htion (Chemical or Thormaf). A process to make treated sludge less odorous and putrescible, and to roduca Ito pathogenic organism content; This may
be clone Uy pH acjus9nent, chionne dosing, or by heal vaaunent;
(51) Sludge Ttic'r.ane:. A typo of sedinionlation lark in which the sludge is permitted to sea!e and thicken through agitation and gra'vily-,
(52) 513hilitation Lagoon. A type cl oxidation lagoon in wNch biological oxidation of organic matter is affected by _natural transfer of oxygen to the water from air (not s
polishing p"d);
(53) Stand -By Power Supply. On site or portable electrical generatlng squipmont,
(54) Slatie Screens. A stationary screen designed to remove solids. Including non-blodagrad able particulate (howaNe solids, suspended solids and BOO reduction) from
municipal and industrial wastewater treatment systems;
(55) Ternary Treatment. A stage of treatment foilow{ng secondary which is primarily for the purpose of efftuenl poFshing: A settling lagoon or sand or coal likor might ba
employed lar tris purpose;
)5G) Thermal POI!hrd3n Control Device, A device providing lot tha transfar of hea: hom a fluid flawing in tubes to another God outside the tubes• or vice vars3; or other
moans of ragulating !lquid lumpwatures;
(52) Thesrhai S!udgo CondStionar• A condrlioning process by which heal is added for a protracted period of lima to improve trhe cl&Halwability at sludge by the solubllizinxg
and hydraulirine or the smaller and more highly hydrated sludge particles;
(59) Toxic Materals. Those wasles or c3mhbinatlons of wasles, including disuase-causing agents which aher dscharga and upon exposvra, ingestion• inhalation or
assinila!ion into any orgarism, either directly hom the owi(o menl or indirncdy b) ingestion nrough food chains, will cause death, disease, behavioral abnormalibes,
cancer• goneGc mviations, physiological malfunctions (including mafrunetions in rEproduc6on) of physical delormations• in such organisms or their orlsoring; Toxic materials
include, ey way of iflustration and not lirrilalion: lead cadmium, chromium, mercury, vanadium, afsonic• zinc, wino-nitro-chlorobcnzone (ONCE), polychforinalud biphenyls
(PCBs) and thclhlorodiphpnyl trichloraelhano (DOT): and any oehar materials that have or may hcioafn9i be delerminod to havo toxic pnoperGos;
(59) Trickling char, A biological Ifealanent ural eonsi-.c:,g at a malarial such as woken stone or rock over which wastewahor Is drstr;brtud; A fv'gh rate u.ckl;ng frtl,)r is oma
wNCi operatsc` at borwoen 10 and 30 mgd par aero A :ow nate tickling fdllsf is x,o wNch is desioned to waste at one to lou• mgd pot aefe:
(60) Trickling n!ior (Packed Tov-,or). A plug how type of operation in wNch wastewater Ilows doom tryough successive Iayors of media or rii;rate malarial; Organic malarial
is removed cenGrwally by Iia active oiological fixed guo+eth in each successive layaf. This mcdhon may prnduce 'secoitdart- quality effluent• or nay be adapted to
prodv_o 2 nit-if!od ell!uont:
(51) vacuvm Filler. ConzrPuges. or Filter Presses. Devices v:Nch are dasignod to ;emovs eh'CeSa water Item -;tnar wg9shd t- u^di3ss!td s!vdga ;,rig: to usposa! or
I•uf Tran traalmsr,l.