WQ0008681_Final Permit_19980730

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
July 30, 1998
The Honorable A. Everette Clark, Mayor
City of Marion
PO Box 700
Marion, North Carolina 28752
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NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Permit No. WQ0008681
City of Marion
Distribution of Class A Wastewater Residuals
McDowell County
Dear Mr. Clark:
In accordance with your application received on May 29, 1998, we are forwarding herewith Permit No.
WQ0008681, dated July 30, 1998, to the City of Marion for the continued operation of a wastewater residuals
facility for the distribution of Class A residuals.
This permit shall be effective from the date of issuance until June 30, 2003 shall void Permit No.
WQ0008681 issued December 21, 1993, 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.
If you need additional information concerning this matter, please contact Ms. Joni Cardin at (919) 733-
5083 extension 509. A
Sincere
— -V'�z
7�. Preston Howard, Jr., P.E.
cc: McDowell County Health Department
Asheville Regional Office, Water Quality Section
Technical Assistance and Certification Unit
Non -Discharge Compliance/Enforcement Unit
PO Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMNIISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
PERMIT FOR THE DISTRIBUTION OF CLASS A RESIDUALS
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and
other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO THE
City of Marion
McDowell County
FOR THE
continued operation of a wastewater residuals facility for the distribution of Class A residuals consisting of the
distribution of 2,300 dry tons per year of residuals from the sources Iisted in Condition 112, to serve the City of
Marion, with no discharge of wastes to the surface waters, pursuant to the application received on May 29, 1998
and in conformity with the project plan, specifications, and other supporting data subsequently filed and approved
by the Department of Environment and Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until June 30, 2003, shall void Permit No.
WQ0008681 issued December 21, 1993, and shall be subject to the following specified conditions and limitations:
L PERFORMANCE STANDARDS
The distribution of Class A residuals 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.
2. This permit shall become voidable in the event of failure of the residuals program to adequately protect
the assigned water quality standards of the surface waters and groundwaters.
3. 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.
4. In the event that the residuals program is not operated satisfactorily, including the creation of nuisance
conditions, the Permittee shall take any immediate corrective actions as may be required by the
Division of Water Quality (Division).
5. Diversion or bypassing of the untreated residuals or leachate from the residual treatment facilities is
prohibited.
All leachate must be reused as a wetting agent for the processing of residuals or routed to the head of
the treatment plant.
When wastewater residuals are sold or given away, one of the Class A pathogen requirements in 40
CFR Part 503.32(a) and one of vector attraction reduction requirements in 40 CFR Part 503.33 must be

W
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.
Class A residuals should not be used in areas of intense public use (schools, playgrounds, ball fields,
etc.).
OPERATION AND MAINTENANCE REQUIREMENTS
The residuals treatment facilities shall be properly maintained and operated at all times.
2. No residuals other than the following are hereby approved for distribution in accordance with this
permit:
Permit Volume
Source County Number (Dry Tons/Year
Corpening Creek WWTP McDowell NCO031879 2,300
3. All residuals shall be adequately stored to prevent leachate runoff until treated. The finished product
may be placed on a concrete pad, placed under shelter or covered until such time as it is distributed to
the buyer. If an alternate storage site is to be used, approval must be obtained from the Division.
4. No other residuals other than those specified under Condition 11 2 above may be distributed. The
Permittee shall request and obtain a permit amendment from the Division for each additional residual
source prior to acceptance of that residual.
For a Class A residual to be sold or given away in bags or other container for application to the land,
the following must be satisfied:
The Ceiling Concentrations (Dry Weight Basis) and the Pollutant Monthly Average
Concentrations (Dry Weight Basis) must be maintained:
Ceiling Monthly Average
Concentrations Concentrations
Parameters mg/kg mg/kg
Arsenic
75
41
Cadmium
85
39
Copper
4,300
1,500 .
Lead
840
300
Mercury
57
17
Molybdenum
75
----
Nickel
420
420
Selenium
100
100
Zinc
7,500
2,800
6. Upon classification of the facility by the Water Pollution Control System Operators Certification
Commission (WPCSOCC), the Permittee shall employ a certified residuals operator to be in
responsible charge (ORC) of the residuals program_ The operator must hold a certificate of the type
classification assigned to the residuals program by the WPCSOCC. The Permittee must also employ
a certified back-up operator of the appropriate type to comply with the conditions of 15A NCAC 8A
.0202.
Adequate provisions shall be taken to prevent wind erosion and surface runoff from conveying
pollutants from the residuals treatment area onto the adjacent property or into any surface waters.

A label shall be affixed to the bag or other container in which residuals that are sold or given away.
for application to the land, or an information sheet shall be provided to the person who receives the
residuals sold or given away in an other container for application to the land. The label or
information sheet shall contain the following information:
a. The name and address of the person who prepared the residuals that is sold or given away in a
bag or other container for application to the land.
b. A statement that application of the residuals to the land is prohibited except in accordance with
the instructions on the label or information sheet.
c. A statement which identifies that this material shall be prevented from entering any public or
private water supply source (including wells) and any stream, lake, or river.
d. Residuals shall not be applied to any site that is flooded, frozen or snow-covered.
e. Adequate procedures shall be provided to prevent surface runoff from carrying any disposed or
stored residuals into any surface waters.
Food crops, feed crops, and fiber crops shall not be harvested 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..
III. MONITORING AND REPORTING REQUIREMENTS
Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue analyses) deemed
necessary by the Division 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 residual activities. These records shall
include, but are not necessarily limited to the following information:
a. source, volume and analysis of each residuals
b. name of residuals' recipient, volume received, and intended use
3. A residual analysis shall be conducted every 60 days from the date of permit issuance by the Permittee.
The results of all analysis shall be maintained on file by the Permittee for a minimum of five years.
The residuals analysis shall include the following parameters:
Arsenic
Cadmium
Copper
Lead
Mercury
Molybdenum
Nickel
Selenium
Zinc
Aluminum
Ammonia -Nitrogen
Calcium
Magnesium
Nitrate -Nitrite Nitrogen
% Total Solids
pH
Phosphorus
Potassium
Sodium
TKN
Plant Available Nitrogen (by calculation)
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 sold or given away.
4. 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):

7.
Arsenic (5.0)
Barium (100.0)
Benzene (0.5)
Cadmium (1.0)
Carbon tetrachloride (0.5)
Chlordane (0.03)
Chlorobenzene (100.0)
Chloroform (6.0)
Chromium (5.0)
o -Cresol (200.0)
m-Cfesol (200.0)
p -Cresol (200.0)
Cresol (200.0)
2,4-D (10.0)
1,4 -Dichlorobenzene (7.5)
1,2-Dichloroethane (0.5)
1,1-Dichloroethylene (0.7)
2,4-Dinitrotoluene (0.13)
Endrin (0.02)
Heptachlor (and its hydroxide) (0.008)
Hexachlorobenzene (0.13)
Hexachloro-1,3-butadiene (0.5)
Hexachioroethane (3.0)
Lead (5.0)
Lindane (0.4)
Mercury (0.2)
Methoxychlor (10.0)
Methyl ethyl ketone (200.0)
Nitrobenzene (2.0)
Pentachlorophenol (100.0)
Pyridine (5.0)
Selenium (1.0)
Silver (5.0)
Tetrachloroethylene (0.7)
Toxaphene (0.5)
Trichloroethylene (0.5)
2,4,5 -Trichlorophenol (400.0)
2,4,6 -Trichlorophenol (2.0)
2,4,5 -TP (Silvex) (1.0)
Vinyl chloride (0.2)
All residuals included in this permit must be monitored every 60 days, from the date of permit
issuance, for compliance with Condition 17 of this permit. Data to verify stabilization 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 with the Class A pathogen requirements in
40 CFR Part 503.32(a) and the 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 every 60 days by the
proper authority or authorities if more than one is involved, either the person who generates the
residuals or the person who prepares the residuals to be sold or given away.
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 sold or given away.
Three copies of all required monitoring and reporting requirements as specified in Conditions III 1, III
2, 11I 3, 1114, and III 5 shall be submitted annually on or before March 1 of the following year to the
following address:
NC Division of Water Quality
Water Quality Section
Non -Discharge Compliance/Enforcement Unit
Post Office Box 29535
Raleigh, North Carolina 27626-0535
Noncompliance Notification:
The Permittee shall report by telephone to the Asheville Regional Office, telephone number (828) 251-
6208, 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 distribution program which results in the land application of significant
amounts of wastes which are abnormal in quantity or characteristic.
b. Any failure of the distribution 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 during transportation of residuals.
Persons reporting such occurrences by, telephone shall also file a written report in letter form within
five (5) days following first knowledge of the occurrence. This report must outline the actions taken or
proposed to be taken to ensure that the problem does not recur.
IV. GROUNDWATER REQUIREMENTS
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, 14$3 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
perm ittee.
2. Any groundwater quality monitoring, as deemed necessary by the Division, shall be provided.
V. INSPECTIONS
1. The Permittee or his designee shall inspect the residuals storage, transport, and treatment 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 or other permitting authority, upon request.
2. Any duly authorized officer, employee, or representative of the Division may, upon presentation of
credentials, enter and inspect any property, premises or place on or related to the treatment 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
This permit shall become voidable unless the distribution activities are carried out in accordance with
the conditions of this permit, the supporting materials, and in the manner approved by this Division.
This permit is effective only with respect to the nature and volume of residuals 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 accompanied by an application fee, documentation from the parties involved, and other
supporting materials as may be appropriate. The approval of this request will be considered on its
merits and may or may not be approved.

4, Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
an enforcement action by the Division in accordance with North Carolina General Statute 143-215.6A
to 143-215.6C.
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).
6. 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.
7. 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.
8. This permit may be modified, or revoked and reissued to incorporate any conditions, limitations and
monitoring requirements the Division deems necessary in order to adequately protect the environment
and public health.
Permit issued this the thirtieth day of July, 1998
NORTH
�ft,fNAZEN7 L MANAGEMENT COMMISSION
c
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0008681

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RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility:',"f Wa p"t cti D r , r 7 G
Owner or Contact Person: C-' a '
flailing Address: Po DgLi:7oA/ a- o M(z, 5=
county: c.A. e -L Telephone: fp 5a - Sk41-3 - -
Present Classification: New Facility Existing i=acility—L-=��—
NPDES Per. No. NCOO-zl Nondisc. Per. No.WQ Health Dept.Per No.
Rated by: -fDate: ` -671 Date-
Reviewed by: 0 Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone:
Check Classifications): Subsurface Spray lrrigati n Land Application
Wastewater Classification: (Circle One) 1 11 til 1V Total Points:
i► ::►i ':.� :►■ : l ■ �►Il:i� ��. 14.E=+■ ��. �.: :► �11� ":l r I►■ .'f1: 's:�■ _ Ls,► �■: •�
�E�� ■ s � :� E !: : lu :►1 ��: Irl + : terra �. _ �..: Lam► � � �" 1� tea.. I=..� R• 7 a. �►: � ;JIB :►.
:a■ 111 ►IL' "Ir■ ►
SUBSURFACE CLASSIFICATION
(check all units that apply)
1. septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4. sand filters
5. grease trapfnterceptor
oil/water separators
gravity subsurface treatment and disposal:
8. pressure subsurface treatment and disposal:
SPRAY IPPJGATiCN CLASSIFICATION
(check all units that apply)
1.
preliminary treatment (definition no. 32 }
2.
tagoons
3.
septic tanks
4.
pump tanks
5.
pumps
6.
sand filters
7-
grease traplinterceptor
8.
oillwater separators
9.
disinfection
1Q.
chemical addition for nutrientlalgae control
ti.
spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater in excess of these components shall
be rated using the point rating system and will require an operator with an appropriate dual certification.
LAND APPLICATIONIRESIDUALS CLASSIFICATION (Appfias only to permit holder)
1_ 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 consideration by the Commission on a case-by-case basis: (Check K Appropriate)
1. Oil/water Separator Systems consisting only of physical separation, pumps and disposal:
2. Septic Tank/Sand Filter Systems consisting only of septic larks, dosing apparatus, pumps,sand litters, 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 oil/water separators, pumps, air -stripping, carbon adsorption, disinfection
and disposzJ;
6. Aquacufture operations with discharge to surface waters:
7. Water Plant sludge handling and back -wash water treatment;
8. Seafood processing consisting of screening and disposal.
Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified if permitted atter July i,
1443 or it upon inspection by the Division, it is found that the system is not being adequately operated or maintained. Such
systems wit[ be notified of the classification or reclassification by the Commission, in writing.

�3,
,_,. ...,. su ,o..

The fc][Owing
scale
is us for rating wastewater treatment facil ;; (circle appropriate points)
ITEM POINTS
{ t }
Industrial Pretreatment Unita or Industrial Pretreatment Program (see definition No. 33)............................................... 1-4
(2)
DESIGN
FLOW OF PLANT IN gpd (not applicable to non-contaminatad cooing waters, sludge handling facilities for
water purification plants, totally closed cycle systems(see definition No. 11), and facilities consisting only of hem
(4)(d)
or Items (4)(d) and (11)(d))
0 - 20.0aa........ I........... I..........................................................................................................................1
20.001 - S0,000......................................................................................................................................2
$0.001 - 100,000...................... ............................................................................................................... 3
100,001 - 250,000...........................................................................................................•..........._...._......4
250,001 - 500,000....................................................................................................... ......................5
500,001 - 1,000,000...............................................................................................................................8
1,000.001 - 2,000.000.............................•--.........•..............................................................................
2.000.001 (and up) rate-1 point additional for each 200,000 gpd capacity up to a maximum of ... .............30
Design Flow (gpd) 0
(3)
PRELIMINARY UJITSIPRCCESSES (sde deflniti6n No.32)
(a)
BarScreens......................................_...........................................................................................1
(b)
or
Mechanical Screens, Static Screens or Comminuting Devices...... . ........... ............................................. ...
(c)
Grit Removal....................................................................................................................................I.
or
(d)
Mechanical a Aareted Grit Removal................................................................................................._........._.2 .
{e}
Flow Measuring Device............................•-•-............................................-•---........-----•---•-----...._...................1
(f)
or
Instrumented Flow Measurement........................................................... (�
(g)
Preaeratlon..................._......................................................................................................._.........
(h)
Influent flow Equaftzatlon.............. ............................................................................................................ 2
(i)
Grease or Oil Separators - Gravity_............................ .......................................................... ...............
Mechanical.................................................................................................................................................3
Dissolved Air Flotatlon................................................................................................................................a
())
Prechlorinatlon.........................................................................................................................................5
(4)
PRIMARYTREATMENTLNMS/PROCESSES
(a)
Septic Tank (see definition No. 43)__ .....................................................................................................2
(b)
Imhoff Tank ......... ..................... ......................•_..................................................................................../..5
(c)
�
Primary Clarfflers......................................................................................................................................'ems'"
(d)
Settling Ponds or Settling Tanks for Inorganlc Non-toxk Materials (afudge handling facilities for water
purification plants, sand, gravel, stone, and other mining operations except racreational activities such as gem
orgold mining) .........................................................................................................................................
(5)
SECONDARY TREATMENT UN17SIPROCESSES
(a)
Carbonaceous Stage
(1) Aeration-High Purity Oxygen System .... ........................... ..... ........................ 0
Diffused Air System......................................................................................................1 0
Mechanical Air System (fixed, floating or rotor).....................................................
C
Separate Sludge Reaeration............................................................................................
(it) Trkiding Filter
HighRate ......................................... _............--,......_........................................._.. ...7
StandardRate ......... _............................... .................... ...................... ...........................
PackedTower................................................................................................................5
(10) Biological Aerated Filter or Aerated Biological Filter-_,...._._ .1 0
(iv) Aerated Lagoons....................................................... _.................................................10
(v) Rotating Biological Conlactors......................................................................................10
(vi) Sand Filters -intermittent biological........................ ............................. ............................
Recirculatingbiological....................................................................................................3
(vll) Stabtlizatton Lagoons......................................•........................................._............... 5
.-._5
(vat) Clarmw..............
(Ix) Single stage system for conib€nad carbonaceous removal of BOD and nitrogenous remov
nllrfflaation (see definition No. 12)(Paints for this item have to be In addition to items
(5)(a)(1) through (5)(a)(vill),
utilizing the extended aeration process (see deflnition No.3a)..........................................2
utilizing other than the extended aeratlon process........... ................................................a
(x) Nutrient additions 10 enhance BOD removal.....................................................................5
(x1) Biological Culture ('Super Sugs')add'Rion........................................................................5
(b)
Nltrogenous Stage
(1) Aeration - High Purity Oxygen System ....... ........................ ............. ................... 20
Ottfucad Air Sysfem........................................._..........................................................--•1 0
Mechanical Air System (fixed, floating or rotor) .................... ......................._..._..............8
Separate Sludge Reaeration............................................................................................3
(II) Trickling Fliter-High Rate............... .............. -................................. _................................ 7
StandardRata..........................................................................................................5
. Packed Tower................................................................................................................5'
(1111 Biological Aerated Flier or Aerated Biological Filer ...... _ . 0
(IV) Rotating Biological Contaaars......................................................................................10
(v) Sand Fitter - Imsmalttent biological..................................................................................2
Recirculating biological....................................................................................................3
(VI) GVftr............................. .............................................................................................5
(6)
TERTIARY OR ADVANCED TREATMENT LNn PROCESSES
(a)
AcriNaled Carbon Beds -
without carbon cogeneration....... ...................... ....... ..............................................................
with carbon regeneration......................................................................................................15
(b)
Powdered or Granular Activated Carbon Feed-
wfthoutcarbon regeneration.................................................................................................5
with carbon regeneration.....................................................................................................15
(c)
Air stripping.............................................................................................................................................5
(d)
Denitrtlicallon Process..............................................................................................................................10
(a)
Electrodfalysts...............•-•..................................................._..........,_,.,.......,....................••.........................5
(f)
Foam Separation .....................................................................-................................................................5
(g)
Ion Exchange... .... .... ... .. ....._ ...... ............ _.......
(h)
Land App€kation of Treated Etfluent (see definition No. 22b) (not applicable for sand, gravel, stone
and other similar mining operations) by high rata Inftltrallon...._..._...._..__... ._ .....................�,......4
(I)
Mtcroscreens..... .......... ............................. ..................................................................................................5
(J}
Phosphorous Removal by Stologtcal Processes (See deflnhion No. 26).........................................................20
(k)
Polishing Ponds - without aeration............... _..................... ......................... ........................ ,......... ....... 2
withraaratian..................................._...............................».._.........................................5

tr
rosy nerauun - cascade..............................................................................................................................0
diffusedor mechanical..................................................................................................
(m)
Revere smosis............................................................................................................ ......... 5
(n)
Sand or Mixed -Media Filters - low rate .......... ._....................... ..._............................................................. 4:2)
highrate......................................................................5
(o)
Treatment processes for removal of metal or cyanide...................................................................................1 5
(p)
treatment processes for removal of toxic materials other than metal or cyanide ............... ............. »......... ...... 15
(7) SLLtCGETAFATMENT
(a)
Sludge Digestlon Tanis - Heated (anaerobic)...............................................................................................10
Aerobic...._..............................................................................................................................5
Unheated(anaerobic)..............................................................------.............._....................................._......3
(b)
Sludge Stabilization (chemical or thermal)............................................................... .....................................
(c)
Sludge Drying Beds - Gravity......................................................................................................................2
VacuumAssisted....................................................... ....................................................... ...... ................. S
(d)
Sludge Elutriation.....................................................................................................................................5
(e)
Sludge Conditioner (chemical or thermal).....................................................................................................5
(1)
Sludge Thickener (gravity) ....................................... ................................................ ..............................�
(g)
Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(1)1. ..... I ......... I .... I .............................. ---a
(h)
Sludge Gas Utilization (inciud€ng gas storage)..................................................................................._........2
(1)
Sludge Holding Tank - Aerated....................................................................................................................5
Non-ae rated.............................................................................................................................................2
(J)
(k)
Sludge Incinerator (not lnc;uding activated carbon regeneration)................................................................10
Vacuum Finer, Centrifuge, or Filter Press or other similar dewatering devices .............................................. CD
(8) RESIDUALS UTILIZATiOWDISPOSAL (indudirg incinerated ash)
(a)
Lagoons..................................................................................................................................................2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application, ape rator or landfill operator who holds the land application permit
orlandfill permit........................................................................................................................................2
(c)
Dedicated Lancifill(budal) by the permittee of the wastewater treatment facility ............... ........................... Q
(9) DGI FEGt1Cld
Chlorination
(a)
(b)
............................................................................... .,........................................................�.?/
Dechlorinalfon........................................... ..............__..............................._............................_._..............5
(c)
Ozone.............................................................................. .........................................................................5
(d)
Radiation.................................................................................................................................................5
(1 0) CHEMICAL ADDITION SYSTEM(S) ( see definition No. 9) (rot applicable to chemical additions rated as ftem (3)Q).
(5)(a)(xl..)ii(7)(b), (7)(e), (9a). (9)(b) or (9)(c) 5 points each:
ListC� od,a?;_w.................................................................................................................
...................................................................---.........................................._... _..............5
.................................................................................................................................5
.........................................................................................I...... _..................... S
(1 1) MISCELANEOJS UNITWFIOCESSES
(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 signJlcartiy greater than Is common
for domestic wastewater............................................................................................................................4
(b)
Effluent Flow Equalization (not applicable to storage basins which are inherent in land application systems).....2
(c)
Stage Discharge (not applicable to storage basins Inherent in land application systems).._..._. ».......
(d)
Pumps................................................................................................................................................Af-.
(e)
Stand -Sy Power Supply............................................................................._........................................
(f)
.
Thermal Pollution Control Device.......................................................................................................�Q3
TOTAL POINTS..........................................................................
CLASSIF)CA31CN
ClassI...........................................................................................................5-25 Palms
Class11.........................................................................................................26.50 Points
...................................................................................................p
ClassN..................................................................................---..._...._.......86-U Points
Facilities having a rating of one through four points. Inclusive, do not require a certified operator.
Facilities having an activated sludge
process will be assigned a minimum ckmificatlon of Class Il.
Facilhiss having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classificatlon of Class Ill.
-------------------------------------------------------------
.DCC4 DEFiNFIONS
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physical/chemical method for reducing soluble organic material from wastewater effluent; The column -type beds used In this
method will have a flow rate varying from two to eight gallons per minute per square toot and may be either upflow or downflow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant she;
(2) Aerated Lagoon& A basin in which all solids are maintained In suspension and by which biological oxidation or organic matter Is reduced through artificially
accelerated transfer of oxygen on a flow-through basis;
(3) Aeration. A process of bringing about intimate contact between air or high purity oxygen In a liquid by spraying, agitation or dfffuslon;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detentlon time of 18 hours.
(4) Agricuhurally managed site. 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 Ion is first converted to dissolved ammonia (pH adjustment) with the ammonia then released to the
atmosphere by physical means; or other similar processes which remove petroleum products such as benzene, toluene, and xylene;
(6) Carbon Regeneratlom The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the
absorbed Impurities;
(7) Carbonaceaus Stage. A stage of wastewater treatment designed to achieve 'secondary" effluent llmhs;
(8) Centrifuge. A mechanical device In watch centrifugal force is used to separate solids from liquids or to separate llquids of different dans'Was;
(9) Chemical Addition Systems- The addition of chemtcal(s) to wastewater at an application point for purposes of Improving soilds removal, pH adjustment.
alkalinity control, etc.; the capability to experiment with diHerant chemlcals and different application points to achieve a specific result will be considered one
system; the capability to add chemicals) to dual units will be rated as one system; capability to add a chemical at a different application points for different
purposes will result In the systems being rated as separate systems;
(10) Chemical Sludge Conditioning. The addition of a chemical compound such as lime, forrlc chloride, or a polymer to wet sludge to coalesce the mass prior to
Its application 10 a dewatering device;
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing inorganic, non-toxic materials fmm sand, gravel,
crushed stone or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances;
(12) Combined Removal of Carbonaceous BOO and Nitrogenous Removai by Nitrification- A single stage system required to achieve permit effluent Iimlts on BOD
and ammonla nitrogen within the same biological reactor,
(13) Dechlorinatlon. The partial or complete reduction of residual chlorine In a liquid by any chemical or physical process;
(14) Derthrification Process. The conversion at nhrate-nitrcgen to nitrogen gas;