WQ0008681_Final Permit_19931221

.State of North Carolina
Deoartmont 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
December 21, 1993
Mr,. 7. Earl Daniels, City Manager
City of Marion
Post Office Drawer 700
Marion, North Carolina 28752
'TL4'
I DEHNR
Subject: Pen -nit No. WQ0008681
City of Marion
Distribution of Class A Wastewater Residuals
McDowell County
Dear Mr. Daniels:
In accordance with your application received on January 8, 1993, we are forwarding herewith
Permit No. WQ0008681, dated December 21, 1993, to the City of Marion for the construction and
operation of a wastewater residuals facility for the distribution of Class A residuals.
This permit shall be effective from the date of issuance until November 30, 1998 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 Mr. Michael D. Allen at
[phone].
Sincerely, ,
A. Pres Howard, Ar., P.E.
cc: McDowell County Health Department
McGill Associates, P.A.
Asheville Regional Office, Water Quality Section
Asheville Regional Office, Groundwater Section
Jack Floyd, Groundwater Section Central Office
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
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
construction and operation of a wastewater residuals program for the distribution of Class A residuals
consisting of the distribution of approximately 2,300 dry tons per year of residuals from the sources listed
in Condition H 2, to serve the City of Marion, with no discharge of wastes to the surface waters, pursuant
to the application received on January 8, 1993, and in conformity with the project plan, specifications, and
other supporting data subsequently filed and approved by the Department of Environment, Health and
Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until November 30, 1998 and shall be
subject to the following specified conditions and limitations:
1. Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box
29535, Raleigh, NC 27526-0535.
2. The Asheville Regional Office, phone no. [phone], shall be notified at least forty-
eight (48) hours in advance of operation of the installed facilities so that an in-place
inspection can be made. 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.
3. 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.
4. 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.

II.
5. 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.
6. In the event that the residuals program is not operated satisfactorily, including the creation
of nuisance conditions, the Permittee shall cease distributing residuals and take any
immediate corrective actions as may be required by the Division.
7. Diversion or bypassing of the untreated residuals or leachate from the residual treatment
facilities is prohibited.
8. Class A residuals should not be used in areas of intense public use (schools, playgrounds,
ball fields, etc.).
9. All leachate must be reused as a wetting agent for the processing of residuals or routed to
the head of the treatment plant.
10. 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 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 to the Assistant Chief, Technical Support Branch,
Division of Environmental Management, Post Office Box 29535, Raleigh, NC 27626-
0535.
OPERATIQN AND MAINIErSANCE REQUIREMENTS
1. 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 Estimated Volume
County Number Tons/Year)
Corpening Creek W YUP McDowell NC0031879 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 of Environmental Management.
4. No other residuals other than those specified under Condition Il 2 above may be
distributed. The Permittee shall request and obtain a permit amendment from the Division
of Environmental Management for each additional residual source prior to acceptance of
that residual.
5. For a Class A residual to be sold or given away in bags or other container for application to
the land, one of the following (Cither A Urk must be satisfied:
A. The product of the concentration of each pollutant in the residual and the annual
whole residual application rate for the residual shall not cause the Annual Pollutant
Loading Rate to be exceeded. The concentration of each pollutant must be less than
the Ceiling Concentrations listed:
2

Annual Ceiling
Pollutant Loading Rates Concen=hgns2
Kilograms Pounds
per Hectarer� mg/kg
Arsenic
2.0
1.7
75
Cadmium
1.9
1.6
85
Chromium
150
133
3,000
Copper
75
66
4,300
Lead
15
13
840
Mercury
0.85
0.75
57
Molybdenum
0.90
0.80
75
Nickel
21
18
420
Selenium
5.0
4.4
100
Zinc
140
124
7,500
2 Dry Weight Basis
B . The Ceiling Concentrations and the Pollutant Monthly Average Concentrations must
be maintained:
Ceiling Monthly Average
Concentrations2 Concentrations2
Parameters mvkg m
Arsenic
75
41
Cadmium
85
39
Chromium
3,000
1,200
Copper
4,300
1,500
Lead
840
300
Mercury
57
17
Molybdenum
75
18
Nickel
420
420
Selenium
100
36
Zinc
7,500
2,800
2 Dry Weight Basis
6. 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 residual distribution 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.
7. 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.
3

c. The annual whole residual application rate for the residuals that does not cause any of
the annual pollutant loading rates to be exceeded
d. Information on all applicable buffers including a 100 foot buffer between application
site and any public or private water supply source (including wells) and any stream,
lake, river, or natural drainage way.
8. Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored residuals into any surface waters.
9. 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.
10. Residuals shall not be applied to any site that is flooded, frozen or snow-covered
11. 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.
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 residual activities. These
records shall include, but are not necessarily limited to the following information:
a. source, volume and analysis of each residuals
b. the annual whole residual application rate for the residual that does not cause the
annual pollutant loading rates to be exceeded
c. name of residuals' recipient, volume received, and intended use
3. A residuals analysis will be conducted every 60 days from the date of permit issuance by
the Permittee and the results maintained on file by the Permittee for a minimum of five
years.
The residuals analysis shall include but is not necessarily limited to the following
parameters:
Arsenic
Aluminum
Cadmium
Ammonia -Nitrogen
Chromium
Calcium
Copper
Magnesium
Lead
Nitrate -Nitrite Nitrogen
Mercury
% Total Solids
Molybdenum
pH
Nickel
Phosphorus
Selenium
Plant Available Nitrogen (by calculation)
Zinc
Potassium
Magnesium
Sodium
TKN
4

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 sold or given away.
4. A Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted by the
Permittee annually if the residuals are generated from wastewater sources that include
industrial sources. If the facility contains 100 % domestic sources, the TCLP analysis shall
be submitted for each source upon permit renewal.
The TCLP analysis shall include the following parameters (please note the regulatory level
in mg/1 in parentheses):
Arsenic (5.0)
Benzene (0.5)
Carbon tetrachloride (0.5)
Chlorobenzene (100.0)
Chromium (5.0)
m -Cresol (200.0)
Cresol (200.0)
1,4 -Dichlorobenzene (7.5)
1,1-Dichloroethylene (0.7)
Endrin (0.02)
Hexachlorobenzene (0.13)
Hexachloroethane (3.0)
Lindane (0.4)
Methoxychlor (10.0)
Nitrobenzene (2.0)
Pyridine (5.0)
Silver (5.0)
Toxaphene (0.5)
2,4,5 -Trichlorophenol (400.0)
2,4,5 -TP (Silvex) (1.0)
Barium (100.0)
Cadmium (1.0)
Chlordane (0.03)
Chloroform (6.0)
o -Cresol (200.0)
p -Cresol (200.0)
2,4-D (10.0)
1,2-Dichloroethane (0.5)
2,4-Dinitrotoluene (0.13)
Heptachlor (and its hydroxide) (0.008)
Hexachloro-1,3-butadiene (0.5)
Lead (5.0)
Mercury (0.2)
Methyl ethyl ketone (200.0)
Pentachlorophenol (100.0)
Selenium (1.0)
Tetrachloroethylene (0.7)
Trichloroethylene (0.5)
2,4,6 -Trichlorophenol (2.0)
Vinyl chloride (0.2)
5. All residuals included in this permit must be monitored every 60 days, from the date of
permit issuance, for compliance with condition I 10 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). 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.
_ 5

6. Three copies of all required monitoring and reporting requirements as specified in
conditions III 1, III 2, III 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 Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
7. Noncompliance Notification:
The Permittee shall report by telephone to the Asheville Regional Office, telephone number
(704) 251-620$, 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 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.
1. The -COMPLIANCE „BQIJNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is
established at either (1) 250 feet from the waste disposal area, or (2) 50 feet within the
property boundary, whichever is closet 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).
Also 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 additional groundwater quality monitoring, as deemed necessary by the Division of
Environmental Management, shall be provided.
5

►.. ' @ W,
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 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 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.
1. 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.
2. 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 of Environmental Management accompanied by an
application fee, documentation from the parties involved, and other supporting materials as
may be appropriate. The approval of this request will be considered on its merits and may
or may not be approved.
4. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c).
5. The 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 pezmit 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 of Environmental Management deems
necessary in order to adequately protect the environment and public health.
7

Permit issued this the 21 st day of December, 1993
613,OL - - 6, C (LL- C/V
A. Preston oward, Jr., P. ., Director
Division o vironmental anagement
By Authority of the Environmental Management Commission
Permit No. WQ0008681

Permit No. WQ0008681
DecQmber 21, 1993
Eneiner,fe$
1, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
.Location
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of the approved plans and specifications.
Signature
Date
Z
Registration No.

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Name of Plant- l_',
Owner .,or Contact Per n: b
Mailing Address: r� ill
ac"
ai
County: ��--cam w— Telephone. :7,D'
NPDES Permit No_.N0006OVii f Nondisc. Per. No.
IssueDate:_�'- -�� Expiration Date:,
Existing Facility �� New f=acility
Rated:..BYr nn It C) Date: �-
Reviewed (T -rain..- ° & Cert.) = Reg. Office
Reviewed (Train.+&` Cert.) Central Office
OR C. C( �11nt-ClJ' _-- Grade __/V -
Plant Class: (circle one) 1 11 til lU. otal ,('air�ts
ITEM POINTS
(1) Industrial. Pretreatment Units and/or
Industrial Pretreatment Program
(see- definition No. 33)
(2) 1 NFLOW OFPLANT INGPD .
(not applicable to non -contaminated cooling waters, sludge
handling; facilities for wales' purification plants, totally
closedt:cycle syslems.(deL:No.;1i}, dh'd-facilities `
consisting only of -Item (4)`(d) -dr l[erris'(4) (d) and -(1i).(d))
0 20,000 .......................... i,
20,001 50,000 .......................... .2
50,ODi.,- 100,000:...... - -. .... ::........ 3
100,001 -- 250,00 ........ ........... . . . 4
250,001 — 500,000. .. ... .... .. 5
_500,001::.-1,000,000 .....::.. .. ` . _ ..:' a
1,000,001.-- 2,000.000.......:...:.:::........ 10
2,000,001 (and up) - rate 1 point additional for each
200,000 gpd capacity up to a
,.-•;�:��is:a;: •; •- �• _ .: maxim ".of�'30: �,� ,
Design Flow {gpd) ;
a�
(3) PRELIMINARY KNITS (see definlWon.no 32) .
_ .
(b).. Mechanical Screens, Static ,Screen"s' or
I-, r, v_•.:i.
Comminuting Devices ........... ... . . ...:.. 2
(c) Grit Removal ............................... i
or
(d) Mechanical or Aerated Grit Removal
(e) Flow Measuring Device . . ..................... 1
or
(f) Instrumented Flow Measurement ..... . .. . . .... 2
(g) Preaeralion .... . ............. _ ...... _ ..... .
(h) Influent Flow •Equatization ............. . ..... 2
(i) Grease or Oil Separators - Gravity .... — .... 2
Mechanical . _ _ ...... _ 3
Dissolved Air Flolation, 5
0) Prechlorination ..................... . . . . ..... 5
(4) PRIMARY TREATMENT UNITS
(a) Septic Tank (see delinition no. 43) .............. 2
(b) lmhoB Tank .. .................................. 5
(c) Primary clarifiers ..... . . . ......... . ........... 19
(d) Settling Ponds or Settling Tanks for Inorganic
Non-loxic 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) SECONDARY TREATMENT -UNITS.
(a) Carbonaceous, Slage•+-
(i)Aeration -• High Purity Oxygen System .....
20
Diffused Ai#System ...'.:::...
10
Medh'anical Air System (fixed,
floating, or rotor)
::Separate:Sludge' Reaeration' :...:'
(ii) T ricktingi•-:Filler .
igl
.Standard Rate .. . . .........
5
:PackediToWer:::._..
5
(iii) Biological;'sAeratedl'!Alter`'or- Aereif d'z;
Biological Filter ........... . .. . . . . . . . .
10
(iv) Aerated Lagoons ..........
-.-10
(v) Rotating Biological,`Corila'cloiss ,
0
10
(vi) Sand Fiileii,:. ;.
Intermittent ti ; }_
-2
:rrtscirculatrtig`�iologfcaf`:"
3
14.
(vii) St2biliiation"Lagd'ons _ ..'. •,•
(viii)Clarifier
(ix) Single stage 9jistem• fdr-comVin ed
carbonaceous removal of'B�D-oriel
nitrogenous "re'mov21".iiyhiliificalion -
(see del:!'NF-- 2) (Paints fdrrtFiis item
to lie i;i zadii.ionllo' ilerris .(5) (a)
(x) Nutrient— additions to enhance 130D
removal .: ;::- .........................
5
(xi) -'BiologicalCulture ('Super Bugs') addition
• to enhance 'organi'Grreoriipound'removal .....
5
(b) Nitrogenous
(i) Aeration - 1-lidh'=P6r!fV1oiygen System :
20
Diffused Air -System . ''
10
`MecF►sa[iical.°°Air'Spstsrr (fined;'}
floating, or:rotor) .::... ......
8
'°' S"eparate Sludge Reaeration .....
(ii) Trickling FilriiW:= °= "' '
High Rale` ..............
7
Standard Rale ............
5
Packed Trower ..... _ . _ ....
5
{iii) Biological Aerated Filter -or Aerated
Biologicat Filler ... _ .... •....... - ... • • • ...
10
(iv)' Rolaling Biological Contactors .. _ .........
10
(v) Sand Filter -
intermittent biological _ . ..
2
recirculating biological . . . . . . .
3
(vi) Clarifier . ............. ........ .......
. 5

_g) Ten,riARY"DRAnVANCEDTftEATMENrUNIT
Sludge Digestion Tank - Heated ...............
(a)
Activated Carbons beds
Aerobic .... .......... .
5
wilbout carbon regeneration ....................
5
3
with carbon reQcneralion................. . . ..
1 5
(b) -powdered or-G(anular Activated Carbon Feed -
(c)
Sludge Drying -. = Gravity ............. . ...
without carbon regeneration .................
5
.Beds
= Vacuum Assisted , .......
with carbon regeneration ...................
is
tc)
Air Stripping ...................... • ......
5
rd)
Denitrilicalion Process (separate process)
(f)
(e)
Electrodialysis ..............................
5
(f)
Foam Separation .... . ... . .. . . . . . ..... . . . .....
5
(g)
Ion F-xchange................................
5
(h)
Land Application of Treated Effluent
(i)
Sludge Bolding Tank,-,, ,Aerated .
(see .definition no. 22b) (not applicable for
Non-aeraled ... _ _ ......
sand, gravel, stone 'and other similar mining
CJ)
Sludge Incinerator - (not including activated
operations)
carbon regeneration) . _ . _
(i) on agriculturally managed sites (See def.
(k)
Vacuum..Filler, Centrifuge of. -Filter Press or other
No- 4).....................................
10
similar dewatering devices
(ii) by high rate infiltration on non -agriculturally
(3); SLUDGE DISPOSAL (including incinerated ash)
managed sites (includes rotary distributors
Lagoons .. ............. . ............
2
and similar fixed nozzle systems) ..:'....-....
4
(iii) by subsurface disposal (includes low pressure
. (see definition 22a)
pipe systems and gravity systems except at.
-where the 'lacil:ty holds the land app. permit _
10
plants consisting of .septic tank and nitrifica-
-by conlracling to a land application operator who
tion lines only) ........ . .. . .................
4
(i)
Microscreens..................................
5
(j)
Phosphorus Removalby Biological Processes
not hood the permit for the wastewater treatment
(See def. No. 26) ..............................
20
(k)
Polishing Ponds - without aeration .......
2
(9, SINFECTION
with aeration ..........
5
(1)
Post Aeration cascade ..............
0
(b)
diffused or mechanical ...
5
(m) Reverse Osmosis ..............................
5
(n)
Sand or Mixed -Media Fillers - low rate ...........
Radialion .................... ... . .
- high rate ..........
(o)
Treatment processes for removal of metal or
cyanide :...................................
15
�)
Treatment processes for removal of toxic
materials other than metal or cyanide .........
15
SLUDGE TREATMENT
(a)
Sludge Digestion Tank - Heated ...............
10
Aerobic .... .......... .
5
Unheated ...... .......
3
(b)
Sludge Stabilizalion (chemical or thermal) .......
5
(c)
Sludge Drying -. = Gravity ............. . ...
2
.Beds
= Vacuum Assisted , .......
5
(d)
Sludge Efutrfalion . .. • • ..... • ..... .
(e)
Sludge Conditioner (chemical or thermal).. , .. -
(f)
Thickener (gravity) .... . ..............g
Sludge .
(g)
Dissolved Air Flotation Unit
(not applicable to a unit rates as (3) (1) ..... _ ...
B
(h)
Sludge Gas Ulilization (including gas storage) .. ..
2
(i)
Sludge Bolding Tank,-,, ,Aerated .
5
Non-aeraled ... _ _ ......
2
CJ)
Sludge Incinerator - (not including activated
carbon regeneration) . _ . _
. 10
(k)
Vacuum..Filler, Centrifuge of. -Filter Press or other
similar dewatering devices
0
(3); SLUDGE DISPOSAL (including incinerated ash)
(a)
Lagoons .. ............. . ............
2
(b)
Land Application (surface and subsurface)
. (see definition 22a)
-where the 'lacil:ty holds the land app. permit _
10
-by conlracling to a land application operator who
holds the land application permit ................
2
-land application of sludge by a contractor who does
not hood the permit for the wastewater treatment
faciiily where the sludge is generated .........
1
c
Landfilled(burial) ... • • • • .. •
5
(9, SINFECTION
(a)
Chlorination ........................ .....
(b)
Dechlorination ........ _ ...............
S
(c)
Ozone----------------..............
S
(d)
Radialion .................... ... . .
5
(10) C11EMICAL AODITION SYSTEM (S) (See definition No 9)
(nol applicable to chemical addilions ralvd as fly
(3) (i), (5) (a) (xi), (6) (a). (6) (b), (7) (b). (7) (c),
(9) (a). (9) (b)• or (9) (c) 5 points each: Lisl:
(11) MISCELLANEOUS UNITS
(a) Holding Ponds, Holding Tanks or Settling Ponds
for Organic or Toxic Materials including wastes
from mining operations..containing nitrogen and/or
phosphorous compounds in amounts significantly
greater than is common for domestic wastewater ..-......
(b) Effluent Flow Equalization (not applicable to storage
basins which are inherent in land application systems)
(c) Stage Discharge (not applicable Io storage basins
4
2
inherent in land application systems ....................................... 5
(d) Pumps .............. ........-...... -......................................
.....-..�
(e) Stand -By Power Supply...............................................................3
(f) Thermal Pollution Control Device ..................................--.__..._- 3
TOTAL. POINTS OO
CLASSIFICATION
Class 1............. ................._....... 5 - 25 Points
Class II .... .............................. - -_ 26- 50 Points
Class 111 ......... .... ........ ................ _,..._......... 51- 65 Points
Class IV .................................. ....._.. 66- Up Points
Facilities ' having a rating of one through four points, inclusive,
do not iequire a certified operator. Classification of all other
facilities requires a comparable grade operator- in responsible
charge.
Facilities having an activated sludge process will be assigned
a minimum classification of Class ll.
Facilities having treatment processes for- the removal of metal
or cyanide will be assigned a minimum classification of Class If.
Facilities having treatment_ processes for the biological removal
of phosphorus will be . assigned a minimum classification of Class -
111. -
In -plant processes and related control equipment which are an
integral part of industrial production shall not be considered waste
treatment. Likewise, discharges of wastewater from residences
having a design flow of 1,000 gpd or less, shall not be subject to
rating.
AODITION8L_ QQMM,ENTS:

RATING SCALE FOR CLASSIFICATION OF FACILITIES
Name of Plant: C try oF__I)oka,km LDAt¢asT F-4cst-r.r4
Owner or Contact Person: Q «t< TIFI_F0"
Mailing Address: lot C—l" i4LL PlAz,a
----- _ -- DL)P-NAM 1"4c- 2--7-701
County: DU P-M&AA Telephone: 9 til 5iers - 4 3 s I
NPDES Permit No. NCOO Nondisc. Per. No. WQaOO -774.5 _
ISsueDate. -7/1 , -i3 Expiration Date:
Existing Facility New Facility ✓
Rated By: M. &LLC—N Date: -7 f rc /ti 3 --
Reviewed (Train. & Cert.) Reg. Office"
Reviewed (Train. & Cert.) Central Office
ORC Grad
Plant Class: (circle one) al
11
III IV Total Points 5
ITEM POINTS
(5) SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage
(1)
Industrial Pretreatment Units and/or
(i)Aeration - High Purity Oxygen System .... _
20
Industrial Pretreatment Program
Diffused Air System ...........
10
(see definition No. 33)
4
Mechanical Air System (fixed,
(2)
DESIGN FLOW OF PLANT IN GPD
floating or rotor) ..............
8
(not applicable to non -contaminated cooling waters, sludge
Separate Sludge Reaeration .....
3
handling facilities for water purification plants, totally
(ii) Trickling Filler
closed cycle systems (dei. No. 11), and facilities
High Rate ...................
7
consisting only of Item (4) (d) or Items (4) (d) and (11) (d))
Standard Rate ...............
5
0 -- 20,000 ..........................
1
Packed Tower... ...........
5
20,001 -- 50,000 ..........................
2
(iii) Biological Aerated Fitter or Aerated
50,001 -- 100,000 ..........................
3
Biological Filter ......................
10
100,001 - 250,000 ..........................
4
(iv) Aerated Lagoons ..................... _
10
250,001 - 500,DDO..........................
5
500,001 --1,000,000 ..........................
8
(v) Rotating Biological Contactors ..........
10
1,000,001 -- 2,000,000 ................. . . ....
10
2,ODD,001 (and up) - rate 1 point additional for each
(vi) Sand Filters -
200,000 gpd capacity up to a
interrnitlent biological .....
2
maximum of 30
recirculating biological .....
3
Design Flow (gpd) .
(v;i) Slabitizalion Lagoons ...................
5
(3)
PRELIMINARY UNITS (see definition no. 32)
(viii)Ciarifier ..............................
5
(a) Bar Screens ............................ . ...
1
(lx) Single stage system for combined
o r
carbonaceous removal of BOD and
(b) Mechanical Screens, Static Screens or
nitrogenous removal by nitrification
Comminuting Devices ........... .............
2
(see def. No. 12) (Points for this item
(c) Grit Removal ...............................
1
have to be in addition to items (5) (a)
or
@ through (5) (a) (vi -ti) .................
8
(d) Mechanical or Aerated Grit Removal ...........
2
(x) Nutrient additions to enhance BOD
(e) Flow Measuring Device .......................
1
removal . .......... .. , ...............
5
or
(xi) Biological Culture ('Super Bugs") addition
(i) Instrumented Flow Measurement ..............
2
to enhance organic compound removal .....
5
(g) Preaeralion................................
2
(b) Nitrogenous Stage
(i) Aeration - High Purity Oxygen System .....
20
(h) Influent Flow -Equalization ...................
2
Diffused Air System ...........
10
(i) Grease or Oil Separators - Gravity ..........
2
Mechanical Air System (fixed,
Mechanical ........ .
3
floating, or rotor) ...... ......
8
Dissolved Air Flotation.
8
Separate Sludge Reaeration .... -
3
Q) Prechto6nalion ........... . ..................
5
(ii) Trickling Filter -
High Rate ..............
7
(4)
PRIMARY TREATMENT UNITS
Standard Rate ..... _ ......
5
(a) Septic Tank (see definition no. 43) ..............
2
Packed Tower ............
5
(b) Imhoff Tank ..................................
5
(Iii) Biological Aerated Filter or Aerated
(c) Primary Clarifiers ..... . _ .. ............
5
Biological Filter .........................
10
(d) Settling Ponds or Settling Tanks for Inorganic
(iv) Rotating Biological Contactors ............
1 D
Non-toxic Materials (sludge handling facilities
(v) Sand Filter -
for water purification plants, sand, gravel,
intermittent biological ........
2
stone, and other mining operations except
recirculating biological ........
3
recreational activities such as gem or gold
(vi) Clarifier,....
mining) .....................................
2