WQ0004817_Final Permit_19910516

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27626-0535
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Mr. Jeff Lamm, Geologist
Southern Concrete Materials
Post Office Box 425
Swannanoa, NC 28778
Dear Mr. Lamm:
George T. Everett, Ph.D.
Director
May 16, 1991
Subject. Permit No. WQ0004817
Southern Concrete Materials
500 N. Richard St. Waynesville, NC
Reclaimer Basins
Recycle System.
Haywood County
In accordance with your application received March 11, 1991, we are forwarding herewith
Permit No. WQ0004817, dated May 16, 1991, to Southern Concrete Materials for the operation of
the subject facility.
This permit shall be effective from the date of issuance until April 30, 1996, and shall be
subject to the conditions and limitations as specified therein. Please pay particular attention to the
monitoring requirements in this permit. Failure to establish an adequate system for collecting and
maintaining the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable to you,
you have the right to request an adjudicatory hearing upon written request within 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.
One set of approved plans and specifications is being forwarded to you. 1f you need
additional information concerning this matter, please contact Mr. Lindsay L. Mize at 919/
733-5083.
cc: Haywood County Health Departme
Asheville Regional Office
Groundwater Section
ncerely,
George T. Ev ett
nt
Pollation Prevention Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
RECYCLE SYSTEM PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Southern Concrete Materials
Haywood County
FOR THE
operation of an existing 1500 GPD reclaimer recycle system consisting of a concrete reclaimer
basin, four concrete settling basins, and a truck clean - out/recycle pump and to serve Southern
Concrete Materials - 500 N. Richard St., Waynesville with no discharge of wastes to the surface
waters, pursuant to the application received March 11, 1991 and in conformity with the project
plan, specifications, and other supporting data subsequently filed and approved by the Department
of Environment, Health and Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until April 30, 1996, and shall be
subject to the following specified conditions and limitations:
1. This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans, specifications, and other supporting
data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. The facilities shall be properly maintained and operated at all times.
4. This permit is not transferable. In the event there is a desire for the facilities to change
ownership, or there is a name change of the Permittee, a formal permit request must be
submitted to the Division of Environmental Management accompanied by an application
fee, documentation from the parties involved, and other supporting materials as may be
appropriate. The approval of the request will be considered on its merits and may or may
not be approved.
5. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as
may be required by this Division, such as the construction of additional or replacement
wastewater treatment or disposal facilities.
6. The sludge generated from these treatment facilities must be disposed of in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.

7. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
8. The facilities shall be effectively maintained and operated as a non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility.
9. Diversion or bypassing of untreated wastewater from the treatment facilities is prohibited.
10. Freeboard in the concrete reclaimer and the concrete settling basins shall not be less than
two feet at any time.
11. Any monitoring deemed necessary by the Division of Environmental Management to insure
surface and ground water protection will be established and an acceptable sampling
reporting schedule shall be followed.
12. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to
insure proper operation of the subject facilities.
13. The Permittee or his designee shall inspect the wastewater recycle facilities to prevent
malfunctions and deterioration, operator errors and discharges which may cause or lead to
the release of wastes to the environment, a threat to human health, or a nuisance. The
Permittee shall keep an inspection log or summary including at least the date and time of
inspection, observations made, and any maintenance, repairs, or corrective actions taken
by the Permittee. This log of inspections shall be maintained by the Permittee for a period
of three years from the date of the inspection and shall be made available upon request to
the Division of Environmental Management or other permitting authority.
14. 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 recycle system 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; or may obtain samples of
groundwater, surface water, or leachate.
15. 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).
16. 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.
17. 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.
18. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of this project.
19. Noncompliance Notification:
The Permittee shall report by telephone to the Asheville Regional Office,
telephone no. 704/251-6208, 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 at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such
as the dumping of the contents of a basin or tank; the known passage of a slug of
hazardous substance through the facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate wastewater treatment such as mechanical or electrical failures
of pumps, aerators, compressors, etc.
C. Any failure of a pumping station, sewer line, or treatment facility resulting in a
by-pass directly to receiving waters without treatment of all or any portion of the
influent to such station or facility.
d. Any time that self-monitoring information indicates that the facility is not in
compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in letter
form within 15 days following first knowledge of the occurrence. This report must outline
the actions taken or proposed to be taken to ensure that the problem does not recur.
20. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified waster treatment plant operator to be in responsible charge of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to the classification assigned to the wastewater treatment facilities by the
Certification Commission. Once the facility is classified, the Permittee must submit a letter
to the Certification Commission which designates the operator in responsible charge.
21. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
Permit issued this the 16th day of May, 1991
AL MANAGEMENT COMMISSION
George T. Ever Dire �anagement Division of Environmental
By Authority of the Environmental Management Commission
PERMIT NO. WQ0004817

(40)Sand or MixP'' dia Fillers. A polishing process by which oflluent limits Ara achioved through a
further reduclic=pended so6ds:(a)low rate -- gravity, hydraulically loaded filler with loading
rales In the om a gpmisf ranga;(b)high rala -• a pross hydraulically loaded lilter with loading
rates in the five gi,,,,,s( range; Al any rale, the loading rate will exceed three gpmish,
(41)Secondary Clarifiers. A lank which follows the biological unit of a trealment plant and which has
the purpose of removing sludge associated with the blologlcal lrealment units;
(42)Saparale Sludge Roaarallon. A pan of the contact stabilization process where the activated sludge
is transferred to a lank and aerated before returning 4 to the basin;
(43)Septic Tank. A single -story seining lank In which sallied siudga is in coraact with the wastewater
flowing through the tank; shah not be applicable for septic tank systems serving
less which discharge to a nitrification field;
(44)Siudge Digestion. The process by which organic or volal;ie matter and sludge Is gasified, liquefied,
mineralized or converted into more stable organic matter through the activity of living organisms,
which includes asraled holding tanks;
(45)Sludge Drying Beds. An area comprising natural or artificial layers of porous materials upon which
digested sewage sludge is dried by drainage and evaporation;
(46)Slu¢gs.Elutriadon. A process of sludge conditioning In which certain constituanls are removed by
suttee awashings with fresh water or plant effluent;
(47)S1*g8
Gas U11[izalion. The process of using sawage gas for tho purposo of having buildings,
driving anginas, etc.;
(46)Sludge Holding tank (Aerated and Nonaerated). A tank utilizer[ for small wastewater treatment
plants not containing a digester In which sludge may be kept fresh, and supernatant withdrawn prior to
a drying method (i.e. sludge drying beds); Thls may be done by adding a small amount of air simply to
keep the sludge fresh, but not necessarily an amount that would be required to achieve stabilization of
organic matter. A nonaerated tank would simply be used to decant sludge prior to dewatering and would
simply bo used to decant sludge prior to dewalering and would not allow long poriods (several days of
detention) without rssulliing odor prcbtams;
(44)Sludge Incinerators. A furnace designed to burn sludge and to remove all moisture and combustible
materials and reduce the sludge to a sterile ash;
(5o)Sludga Stabilization (Chomlcai or Thormai). A process to make Treated sludge loss odorous and
putrescrlble, and to reduce the pathogenic organism conlanl; This may be done by pia adjustment
chlorine dosing, or by heat treatment;
(51)Sludge Thickener. A type of sedimentation lank in which the sludge Is permitted to settle and
thicken through agitation and gravity; I
(52)Slablllzalron Lagoon. A typo of oxidation lagoon in which b1bioglcA oxidation of organic matter is
effected by natural transfer of oxygen to the water Irom air (not a polishing. pond);
53)Sland-By Power Supply. On site or portable electrical generating squipment;(54) Sialic Screens.
A stationary screen designed to remove solids including non -biodegradable parlicufale (Ifoatable solids,
suspended solids and BOD reduction) from municipal and industrial
wastewater treatment systems;
(55)Tertiary Traalmenl• A slags of treatment following secondary which Is primarily for the purpose
of effluent polishing; A sapling lagoon or sand or coal filter_ might be employed for this purpose.
(58)Thermal Pollution Control Device. A device providing for the transfer of heat from a fluid flowing
in tubes to another fluid outside the tubes, or vice versa; or, other means of regulating
liquid temperatures;
(57)Thermal Sludge Conditioner. A conditioning process by which heal is added for a protracted period
of Irma to improve the dewalarabllily of sludge by the solublllzing and hydraulizing of the smaller and
more highly hydrated sludge particles;
(58)Toxic Materials. Those wastes or combinations of wastes Including disease -causing agents which
after discharge and upon exposure, Ingestion, inhalation or assimilation Into any organism either
directly from the environment or indirectly by Ingestion through food chains, will cause death, disease,
behavioral abnormalities, cancer, genetic mutations, physiological mallunctions (including malfunctions
in reproduction) or physical deformations, in such organisms or [heir offspring; Toxic materials
include, by way Illustration and not limitation: lead, cadmium, chromlum, mercury, vanadium,
arsanic, zinc, oriho-nitro-chiorabenzene (ONCB polychiorinaled biphenyls (PCBs) and dichiorodiphenyl
trichloroethane (DDT); and any other materials that have or may hereafter be determined to have toxic
properties;
(59)Trickling lillar. A biological treatment unit conz)sring of material such as broken stone or rock
over which wastewater is distributed; A high rale trickling filler Is one which is aperated aI between
10 and 30 mgd par aero. A low rate trickling tutor is one which Is designed to operate at one to (our
mgd per acre;
(60)Trickling Filter (Packed Tower). A plug flow type of operation In which wastewater flows down
through successive layers of media or filtrate material; Organic malarial is removed continually bP
active biological fixed growth in each successive layer, This method may produce 'secondary' -quality
effluent, or may be adapted Io produce a nilritied ellluent;
(61)Vacuum Fillers, centrifuges, or Filler Presses. Devices which are designed to remove excess
water from either digested or undigested sludge prior to disposal of further
J RATING SCALE FOR CLASSIFICATION OF FACi"i tiFS
Name of Plant: k
Owner or Contact Person: - 4-f. c
Mailing Address: p.0 • n �3 ,Sr,•-A�� Qh n � `
County: Telephone:70.y/,4fc� -31" ,Y_1
NPDES PerrnJ No. NC00 Expiration Date:
Issue Date:
6
Nondisc. Permit No. 6 l Expiration Date:
Issue Date:
Rated Ry:
Reviewed (Train. & Cert.) Reg. Office
Reviewed ('train. & Cert.) Central Office
ORC Grade
Plant Class: (circle one) II 111 IV
ITEM tJ POINTS
(1) industrial Pretreatment Units and/or.
Industrial Pretreatment Program
(see definition No. 33)
4
(2) DESIGN FLOW OF PLANT IN GPD
(not applicable to non -contaminated cooling
waters, sludge handling facilities for water
purification plants, totally closed cycle
systems (def. No. 11), and facilities
consisting only of Item (4) (d) or Items (4) (d)
and (11) (d))
D
0 -- 20,000 ..........................
20,001 -- 50,000 ..........................
2
50,001 -- 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 ......................
10
2,000,001 (and up) - rate 1 point additional for each
200,000 gpd capaoity up to a
maximum of 30
Design Flow (gpd) : /5-00

(3) PRELIMINARY UNITS (see definition no. 32)
(:1) Bar Scrron,; ............... • ... , ............
or
(b) Mechanjcal Screens, Static Screens or
Comminuting Devices ........... 2
(c) Grit Removal ...............................
or
(d) Mechanical or Aerated Grit Removal ...... _ .... 2
(e) Flow Measuring Device ....................... 1
or
(f) instrumented Flow Measurement ........ .. . . ..
2
(g) Preaeration................................
2
(h) Influent Flow Equalization ...................
2
(i) Grease or Oil Separators - Gravity ....... • ..
2
Mechanical ..........
3
Dissolved Air Flotation.
8
(j) Prechlorination ..............................
5
(4) PRIMARY TREATMENT UNITS
(a) Septic Tank (see definition no. 43) ..............
2
(b) Imhoff Tank ...... • .... . ......................
5
(c) Primary Clarifiers ............ ...............
5
(d) Settling Ponds or Settling Tanks for Inorganic
Non-toxic Materials (sludge handling facilities
for water purification 'giants, sand, gravel,
stone, and other mining operations except
recreational activities such as gem or gold
Q
mining) ...... ............. ...................
(5) SECONDARY TREATMENT UNITS
(a) Carbonaceous Stage
(i)Aeration - High Purity Oxygen System.. • •
20
Diffused Air System ... _ .......
10
Mechanical Air System (fixed,
floating or rotor) .... , .....
8
Separate Sludge Reaeration .....
3
(ii) Trickling Filter
High Rate . ...............
7
Standard Rate ................
5
Packed Tower ...............
5
(iii) Biological Aerated Filter or Aerated
Bjojogical Filter ......................
1 0
(iv) Aerated Lagoons .......... • ..........
10
(v) Rotating Biological Contactors ..........
10
(I I)Closed Cycle Systems. Use of holding ponds or holding tanks for conga:;
containing inorganic, non-toxic materials from sand, gravel, crushed stone it
from which there is no discharge to the surface walars; such systems sh a maxi....
points regardless of pumping facilities or any other appurtenances;
(12)Combirted Removal of Carbonaceous BOD and Nitrogenous Removal by Nlinucalion - A single stage
system 'designed' to achieve "advanced' permit elfluenl limits on BOD and ammonia nitrogen within'
the same biological reactor,
(13)Dn-chlorination. Tho partial or complotn rnrlur•.11on of rnsiduai rh€trine in a liquid by any chomical
or physical process;
(14)[?en1trification Process. The conversion of nivate-nitrogen to nitrogen gas;
(15)Eleclrodialysis. Process for removing ionized salts from water through the use of ion -selective
ion -exchange membranes;
(16)Filler Press. A process operated mechanicaily for partially dawalering sludge;
(17)Foam Separation. The planned frothing of wastewater or wastewater effluent as a means of
removing excessive amounts of detergent materials through the introduction of air in the form of line
bubbles; also called foam fractionation;
(18)Gril Removal. The process of removing grit and other heavy mineral matter from waslewaler,
(19)imhotf Tank. A deep two siory wastewater lank consisting of an upper sedirrmontalion chamber and
a lower sludge digostion chamber;
(20)Inslrumon1ed Flow Measurement. A device which indicates and/or records rale of flow;
(21)lon Exchange. A chemical process In which ions from Iwo different molecules are exchanged:
(22)Land application: (a) Sludge Disposal. A final sludge disposal method by which sludge may be
applied to land ellher by spraying on the surface or by subsurface injection (I.e., chisel plow); snot
applicable for types of sludge described In (11) of this Rule); (b)Trealed Effluent. The process of
spraying treated wastewater onto a land area or other methods of application of wastewater onto a
land area as a means of final disposal and/or Irealmanl;
(23)Microscreen. A low speed, continuously back -washed, rotating drum filter operating under
gravity conditions as a polishing method removing suspended solids from effluent;
(24)Nilrificalion Process. The biochomical conversion of unoxidizod nitrogen (ammonia and organic
nitrogen) to oxidized nitrogen (usually nitrate);
(25)Nitrogencus Stage, A separate stage of wastewater treatment designed for the specific purpose of
converting ammonia nitrogen to nilrale nitrogen;
(26)Phosphate Removal Biological. The removal of phosphorus from wastewater by an oxiclanoxic
process designed to enhance luxury uptake of phosphorus by the microorganisms;
(27)Polishing Pond, A holding pond following secondary irealmenl with sufficient detention to allow for
the settling of finely suspended solids;
(28)Post Aeration. Aeration following conventional secondary treatment units to increase effluent D,O.
or for any other purpose;
(29)Posi Aeration. (Cascade) A polishing method by which dissolved oxygen is added to the effluent by
a nonmechanical, gravity means of flowing down a series of slops or weirs: The flow occurring across
the slops or weirs moves In a lairly thin layer and the operation of the cascade requires no operator
adjuslmanl; thus, zero points are assigned oven though this is an essenlial stop to meeting the limits of
the discharge permit;
(30)Powdorod or Granular Aclivagod Carbon Fond. A biophysical carbon process that utitizes biological
activity and organic absorption by uslrg powdered or granular activated carbon; Virgin and/or
regenerated carbon is feed controlled into the system;
(31)Preaerafon. A tank constructed to provide aeration prior to primary treatment;
(32)Prellminary Unils. Unit operations In the lroatment process, such as scrooning and comminu ion,
that prepare the liquor for subsequent major operations;
(33)lnduslrial pretreatment: (a)Pre-Irealmenl Unit, Industrial, The conditioning of a waste lis
source before discharge, to remove or to neutralize substances injurious to sewers and Ireaime7tS
processes or to effect a partial reduction In load on a treatment process which is operated by the same
governing body as the wastewater treatment plant being rated; (b)Pre-Ireaiment Program, Industrial -
must be a Slate or EPA required program to receive points on the rating sheet;
(34)Primary Clarifiers. The first settling lanks through which wastewater is passed in a Treatment
works for the purpose of removing settleable and suspended solids and BOD which is associated with the
solids:
(35)Pumps. Alf influent, effluent, and in -plant pumps;
(36)Radiation. Disinfection and/or sterilization process utilizing devices emitting uli,avielet or Mamma
(37)Reverse Osmosis. A treatment process In which a heavy contaminated liquid is piessurized
through a membrane forming nearly pure liquid free from suspended solids;
(38)Rolafing Biological Conlactors. A fixed biological growth process in which wastewater flows
through tanks In which a sones of partially submerged circular surfaces are rotatod:
(39)Sand Fillers:(a)Intormitient Biological- Filtration of effluent following septic tanks, lagoons, or
some other troalmont procoss in which further blodocomposition is expected to produce daslred
offluonls; Hydraulic loading rales on those fillers are computed in gpolac and have a resulting low
gpmisf (less than one): (b)Recirculaling biological - the same type of sand filler as defined in (a) with
the added capatiNly to recycle effluent back through the sand filler,
4

TOTAL POINTS
CLASSIFICATION
ClassI ..........................................................
5 -
25
Points
'Class II ........................................................
26-
50
Points
Class III .......................................................
51-
65
Points
Class IV ........................................................
66-
Up
Points
Facilities having a rating of one through four points, inclusive,
do not require 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 Ii.
Facilities having treatment processes for the removal of metal
or cyanide will be assigned a minimum classification of Class II.
Facilities having treatment processes fQr the biological removal
of phosphorus will be assigned a minimum classification of Class
Ill.
DEFINITIONS
(f)AcOvaled Carbon Beds. A physicallchemical method for reducing soluble organic material from
wastewater effluent; the co€umn-type beds used in this method will have a flow rate varying from Iwo
to eight gallons per minute per square fool and may be either upflow or downflow carbon bads. Carbon
may or may not be rogonoralad on the wastewater treatment plant slta.
(2)Aeraled Lagoons. A basin in which all solids are maintainod in suspension and by which blutoglcal
cxidallon or organic maltor is roducod litrough alllficla4y accotoratod transfor of oxygon on a flow-
through basis;
(3)Aaralion. A process of bringing about intimate contact between air or high purity oxygen In a liquid
by spraying, agkanon diffusion;
(4)Agriculturally 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 than released to {he atmosphere by physical means; or other similar
processes which remove petroleum products such as benzene, toluene, and xylene.
(B)Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide
extremely high temperatures which volatilize and oxidize the absorbed impurities;
(7)Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent
limits.
(B)Cenlrifuge. A mechanical device in which centrifugal force is used to separate solids from liquids
and/or to separate liquids of different densities;
(9)Chsmicat Addition Systems - The addition of chemical (s) to wastewater at an application point for
purposes of improving sofids removal, pH adjustment, alkalinity control, etc.; the capability to
experiment with different chemicals and different application points to achieve a specific result will be
considered one syslam; the capability to add chemical (s) to dual units will be rated as one system;
capabliily to add a chemical at difference application points for different purposes will result -in the
systems being rate as separate system.
(ta)Chemicat Sludge Conditioning. The addition of a chemical compound such as lime, ferric chloride, or
a polymer to wet sludge to coalesco the mass prior to its application to a dowaler'sng device;
1 (vf)
Sand Filters -
intermittent biological .. ..
2
recirculating biological , . . ..
3
(vii)
Stabilization Lagoons ...................
5
(viii)Clarifier ..............................
5
(ix)
Single stage system for combined
carbonaceous removal of BOD and
nitrogenous removal by nitrification
(see def. No. 12) (Points for this item
have to be in addition to items (5) (a)
(i) through (5) (a) (viii) .................
8
(x)
Nutrient additions to enhance BOD
removal ...............................
5
(xi)
Biological Culture ("Super Bugs") addition
to enhance organic compound removal .....
5
(b) Nitrogenous Stage
('i)
Aeration - High Purity Oxygen Systems .....
20
Diffused Air Systems ...........
1 0
Mechanicaf Air System (fixed,
floating, or rotor) ...... ......
8
Separate Sludge reaeration .....
3
(ii)
Trickling Filter -
High Rate ...............
7
Standard Rate ............
5
Packed Tower............
5
(iii)
Biological Aerated Filter or Aerated
Biological Filter .........................
10
(iv)
Rotating Biological Contactors ............
10
(v)
Sand Filter -
intermittent biological .. . . ....
2
recirculating biological .... _ ...
3
(v i)
Clarifier ........... . ....................
5
(6) TERTIARY OR ADVANCED TREATMENT UNIT
(a) Activated Carbons Beds -
without carbon regeneration .... . ............. 5
with carbon regeneration ...... . ............. .15
(b) Powdered or Granular Activated Carbon Feed -
without carbon regeneration ...... . .......... 5
with carbon regeneration ......... . ..... . ... 15
(c) Air Stripping ............................. 5
(d) Denitrification Process (separate process) . .. . . 10

(a)
Electrodialysis ..............................
5
(f)
Foam Separation .............................
5
(g)
Ion Exchange ................................
5
(h)
Land Application of Treated Effluent
similar dewatering devices ................. . ..
(see definition no. 22b) (not applicable for
(8) SLUDGE DISPOSAL (including incinerated ash)
sand, .gravel, stone and other similar mining
2
(b) Land Application (surface and subsurface)
operations)
(see definition 22a)
(i) on agriculturally managed sites (See def.
1 0
-by contracting to a land application operator who
No.4)...................................
10
2
(ii) by high rate infiltration on non -agriculturally
not hold the permit for the wastewater treatment
managed sites (includes rotary distributors
facility where the sludge is generated .........
10
and similar fixed nozzle systems) ...........
4
(9) DISINFECTION
(iii) by subsurface disposal (includes low pressure
(a) Chlorination ..............................
pipe systems and gravity systems except at
(b) Dechlorination ............. ...........
5
plants consisting of septic tank and nitrifica-
5
(d) Radiation .... . ............ . ........
tion lines only) .............................
4
(i)
Microscreens..................................
5
(}
Phosphorus Removal by Biological Processes
(9) (a), (9) (b), or (9) (c) 5 points each: List:
(See def. No. 26) ....................... . .....
20
(k)
Polishing Ponds - without aeration .......
2
5
with aeration ..... , ....
5
(1)
Post Aeration - cascade ..............
0
diffused or mechanical ...
5
(m)
Reverse Osmosis ...............................
5
(n)
Sand or Mixed -Media Filters - low rate ...........
2
(b) Effluent Flow Equalization (not applicable to storage
high rate .... , .....
5
(o)
Treatment processes for removal of metal or
inherent in land application systems .......................................
cyanide....................................
15
(p)
Treatment processes for removal of toxic
3
(f) Thermai Pollution Control Device .............................................
materials other than metal or cyanide .........
15
(7) SLUDGE TREATMENT
(a)
Sludge Digestion Tank - Heated ...............
10
Aerobic ...............
5
Unheated ...... ..... ,
3
(b)
Sludge Stabilization (chemical or thermal) . ..... .
5
(c)
Sludge Drying Beds - Gravity ............ . . ...
2
Vacuum Assisted .......
5
(d)
Sludge Elutriation ...................... .......
5
(e)
Sludge Conditioner (chemical or thermal) ........
5
(f)
Sludge Thickener (gravity) ......................
5
(g)
Dissolved Air Flotation Unit
(not applicable to a unit rates as (3) (i) .........
8
(h)
Sludge Gas Utilization (including gas storage) ... .
2
j
(i) Sludge Holding Tank - Aerated .............. . .
5_
Non-aerated ........ , ...
2
(j} Sludge Incinerator - (not including activated
carbon regeneration) .... .
10
(k) Vacuum Filter, Centrifuge or Filter Press or other
similar dewatering devices ................. . ..
1 0
(8) SLUDGE DISPOSAL (including incinerated ash)
(a)Lagoons........................................
2
(b) Land Application (surface and subsurface)
(see definition 22a)
-where the facility Folds the land app. permit . . .
1 0
-by contracting to a land application operator who
holds the land application permit .. . .............
2
-land application of sludge by a contractor who does
not hold the permit for the wastewater treatment
facility where the sludge is generated .........
10
(c) Landfilled (burial) .......... .................
5
(9) DISINFECTION
(a) Chlorination ..............................
5
(b) Dechlorination ............. ...........
5
(c) Ozone...... ......................
5
(d) Radiation .... . ............ . ........
5
(10) CHEMICAL ADDITION SYSTEM (S) (See definition No. 9)
(not applicable to chemical additions rated as item
(3) (j), (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e).
(9) (a), (9) (b), or (9) (c) 5 points each: List:
5
5
5
5
(11) MISCELLANEOUS UNITS
(a) Holding Ponds, Holding Tanks or Settling Ponds
for Organic or Toxic Materials including wastes
from mining operations conta}Hing nitrogen and/or
phosphorous compounds in amounts significantly
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 .......................................
5
(d) Pumps ....................... ....... ...................... -...... ................ ..........................
0
(e) Stand -By Power Supply..................................................................
3
(f) Thermai Pollution Control Device .............................................
3