WQ0010453_Final Permit_19950217

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Guy Pittman, General Manager
Mitchell Distributing Company
P.O. Box 5323
Asheville, NC 28813
Dear Mr. Pittman:
A
T�'w
••
rj Aj
C) FE FI
February 17, 1995
Subject: Permit No. WQ0010453
Mitchell Distributing Company
Mitchell Dist, Co; Asheville Branch
Wastewater Recycle System
Buncombe County
In accordance with your application received January 3, 1995, we are forwarding herewith Permit
No. WQ0010453, dated February 17, 1995, to Mitchell Distributing Company for the continued operation
of the subject wastewater recycle system.
This permit shall be effective from the date of issuance until January 31, 2000, 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, 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.
One set of approved plans and specifications is being forwarded to you. If you need additional
information concerning this matter, please contact Mr. Randy Kepler at [phone].
Sincerely,
A. Prest Howard, Jr., P.E.
cc: Buncombe County Health Department
Asheville Regional Office, Water Quality Section
William E. Bruce, Construction Consultant
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
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
Mitchell Distributing Company
Buncombe County
FOR THE
continued operation of a 540 GPD wastewater recycle system consisting of a concrete -lined, sediment
removal basin with inclined bottom for cleaning, an RGF Environmental Systems, Inc., Ultrasorb System
(consists of an aeration tower, an inclined tube coalescer, solids separator/hydrocarbon absorber,
multimedia filter, storage tank and pumps) for wastewater treatment in the steam cleaning and equipment
washing operation, and all necessary piping, valves, electrical fixtures and appurtenances serving Mitchell
Distributing Company, with no discharge of wastes to the surface waters, pursuant to the application
received January 3, 1995, and in conformity with the project plan, specifications, and other supporting
data subsequently filed and approved by the Department of Environment, Health and Natural Resources
and considered a part of this permit.
This permit shall be effective from the date of issuance until January 31, 2000, 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 and 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. 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, and other supporting materials. Mail the Certification to the Water Quality
Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535.

6. 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
actions that may be required by this Division, such as the construction of additional or
replacement treatment or disposal facilities.
7. The residuals generated from these treatment facilities must be disposed in accordance with
General Statute 143-215.1 and in a manner approved by the North Carolina Division of
Environmental Management.
8. 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.
9. 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.
10. Diversion or bypassing of untreated wastewater from the treatment facilities is prohibited.
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 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
three years from the date of the inspection and shall be made available to the Division of
Environmental Management or other permitting authority, upon request.
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
maintained under the terms and conditions of this permit, and 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 15A 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(a) to 143-215.6(c).
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.
2

19. Noncompliance Notification:
The Permittee shall report by telephone to the Asheville Regional Office, telephone number
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 renders 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; or
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 wastewater treatment plant operator to be in responsible charge (ORC) of
the wastewater treatment facilities. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a
certified back-up operator of the appropriate type and grade to comply with the conditions
of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202.
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 seventeenth day of February, 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston ward, Jr., P.E , Director
Division of vironm ental Management
By Authority of the Environmental Management Commission
Permit Number WQ0010453

Permit No. WQ0010453
February 17, 1995
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, for the
Project Name Location
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 this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
4
Registration No.

4.0
Ch;
3135
21/
Al
$w - � 1. 1 . ' � '( .- � i •__ " `; ( : - '•, _ � � �"se ern
V.
s034
�\��. `'' f ti'sr ��' �� •'� • �'� Y , �� .,. -,• 'i?�1 ��.•\1i o q'>t /� 32'30'
.�---- ^.Lr % �� i�jf' • •• l•— :,��•� ••� .; :� : Swee C �i ��� ry � �' ..., ''��--ice` _ •�;.
If
Oooil
ore
``-, ,l ��- ='� �� • - •1 ! � . ��� a .J � /�i1���1�/- �
L � ^Y /moi _ '•� -' / r- 1 �. • � L1� , P IL �.i / J
" I�I y/• 1 _ / { x'33
Pig
ti`s � � _` i � � f� � j -_ ,�`.�" • r • ' -�� � � �` rr� � r �_ —�
a��' i r + •' �', N.,. r, , -Y �� '_�_ � � .�`� /ter r ,,,jjj ��1 kit
i
�L!_`/+'~ +•_��\ `�:• r:ti , l l ,� i 5/ �Y�1,f 1,� r 32
�'',�'.-�` � 1, � �.,,: -,> ' � � .. . •�: J \E�� � ,' J � r
PAP
� � r/ ; �� R 'g• ''r • QppSt'�A, `�..a.1 -- � - _ . �11 ,� • ti , � 4 �k�,�� �� �� , , //__' ��' y � �� ��1 r� �
221,1
- � ';� � - ��^ •. alley Sprir� ,y, _ `,ti \`� 1 �
,'`f VJ� • f /� �u ''. � - _ 12Z8� � ���1` i ��' •`.�' � 11th y \
1���//''' V 1 c'� w _ Y- rC� ;�• ._ �� i[5� ��" II ,�' ��t 'i'�Jii�i`� ! �4�i ._
� �Y .._.- :.,q . � / •'iii 'a� ljti� yY �/ ,�t�f-.' i
,..yr�.� „�I M,••4`�l � f% ._ £ _ `��L� .,•-�?<�?Vi/x%.''a1.�`'`.�jr'1•?is ?•
a ,yy'F�3� .. Y� � o .\, .�� 'II, - '':may. .5': •, :-.� `,
'� �,6• '. iT . ,n /1---/� a d j ' _ �; i, ; /'yam/ _ "r+' ; S ,C\� .. -'•
, - asp n' ir' i ,� y�� a.= ;ice -. •I =c •'•\ { � •�''.
.- rte! rl ��' �;�1'sq -. };., ` - .`-x^s_ � ?F '� � -'� i .`` { ,` �. •?a I.'--
•, 0• Busbee '- _ ,. •� ♦ •.' .,� - 35"30'
1G4C((,, 3
32' • ' 161 1 0 IHTi,R1OR-GEO�OGICAI SId RYL•.WASNrNGYON, 0 C -1.45
M:. ff,,30 O�e]Y

__ rUR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
tree of Facility: fyP(TCkf-II Ot STiz%tL,7,NCG
vner or Contact Person:
-Pr rn4Cyvt_
IGeN
lagoons
ailing Address: pD
septic tanks
4.
pump tanks
aunty: _ - -- wu
cry
Telephone:
1 --
esent Classification:
—
New Facility
Existing Facility ✓
)ES Per. No. NC00
Nondisc. Per. No.WQ 0010¢53
Health Dept.Per No.
.ed by: 16Aa* i�-meter
_ _
Telephone: (7c,f-� zS7-62p-P Date: 1 95
:viewed by:
Health Dept.
Telephone:
Regional Office
Telephone:70y- 25/-_6-7-01f
Central Office
Telephone:
Grade:
Telephone:
Teck Classification(s):
Subsu e
Spray Irrigation
Land Application
astewater Classification: (Circle One (
-----------------------
LNSIDERED WASTE TREATMENT FOR THE PURPOSE QE QL.,4S51DK;61
it 111 IV
__........____----------•-_--.--__--------
O 1- &5; Q_$FEMJ&%
Total Points:i1.
�9nJ § CON,5JU JG QtIY OF SEETIC TANK
BSURFACE CLASS F1CATl0N
sack all units that apply)
septic tanks
pump tanks
siphon or pump -dosing systems
sand filters
grease trapAnterceptor
ail/water separators
gravity subsurface treatment and disposal:
pressure subsurface treatment and disposal
SPRAY 1RRtGATK)N CLk Sl1=1GATK N
(check all units [hat apply)
1,
preliminary treatment (definition no. 32 J
2.
lagoons
3.
septic tanks
4.
pump tanks
5,
pumps
6.
sand filters
7.
grease traplinterceptor
s_
oil/water separators
9.
disinfection
10.
chemical addition for nutrient/algae control
11.
spray Irrigation of wastewater
ddltlon to the above classifications, pretreatment of wastewater in excess of these components shall
ated using the point rating system and will require an operator with an appropriate dual certification.
4P PLICATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
_Land application of biosolids, residuals or contaminated soils on a designated site.
---------------------------
DATER TREATMENT FACfLITYCLASS RCATION
,yiing systems shall be assigned a Class I classification, unless the flow is of a significant quantity or the technology is unusually
to require consideration by the Commission on a case-by-case basis: (Check if Appropriate)
,Oil/water Separator Systems consisting only of physical separation, pumps and disposal;
Septic TankfSand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge;
goon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
i3gae or nutrient control, and direct discharge;
'Iosed-loop Recycle Systems;
roundwater Remediation Systems consisting only of oil/water separators, pumps, air -stripping, carbon adsorption, disinfection
id dispos.J;
ivacufture operations with discharge to surface waters;
►ter Plant sludge handling and back -wash water treatment;
Mood processing consisting of screening and disposal.
Ile -family discharging systems, with the exception of Aerobic Treatment Units, will be classified if permitted after July 1,
3 or if upon inspection by the Division, it is found that the system is not being adequately operated or maintained_ Such
)ms wit' notified of the classification or reclassification by the Commission, in writing.

. c; d �rnont /auimIes� (circle appropriate points)
rFsw powTo
industrial p"ummmom Units or muvmnm Pretreatment p (see mmmmoo No, oo) .........................................--4
(2) DESIGN FLOW orPLANT /w gpd (not applicable,pnon-comaminawocooling waters, sludge handling /acowesfor
w*",vvMicmmn plants, totally closed cycle o'stoms(owoua/mm^oNo. 11). and /*yma,consisting only o/xom
<m(u) or x^ww wVd) and (11)(d)|
o ou»vw....... ............. ............. '_---............................................. .......... --...... -----'�
zv.om 5m,0uu............................... .............................................. ----_--'—'----'---�
50,001 ,uo»uu............................................................................................. ...................................... �3
100.001 c50000— ................ ................... ...................................... --............................................. 4
250.00/ 00000u ...... ....................................... ........... ....................... .......... ............................. —'s
500,001 ' l.00n.0ou............................................................................
1.000.001 z.mm/00o............................... .............................................. ................ —.—._--`o
2.000.00each z00,mmxpd capacity upwumaximum m .............. 3o
Design Row (gpd)
n> PRELIMINARY
uwrTmpnonEoSso(see definition wv.32)
(^)
Barmo°wns............................................................................................................................................... 1
or
(m
Mechanical ocr""^* Static Screens woummxmmm o"w^**...........................................................................
(^)
amRemoval ................... ....................................................................................................... .................. 1
or
(m
w%voanicalmAerated Grit Removal ......... .............................................. ...................................... ............ �
(v)
Flow Measuring Device ................................................................................................................................ `
or
/
instrumented Flow Measurement ...............
o)
pmxom^mo....... —......................... ........................................................................................................... 2
m>
momm'plow Equalization
(V
m�ao mon oepa���' Gravity ..................... .... ............................. —.... ............................................ 2
Mechanical.............................................................. .................................................................................. u
Df&wtved ^mFlotation ........................................................................................................................ ...... o
.................................. ................. ................................................ '............... a
<4> PRIMARY TREATMENT uwnu�Pnousnmes
Septic Tank (see uwmxmnNo. 43) ................... 2
»
mhooTank ................................................................................. ................. .......................................... »
(d)
Smiling Ponds or Settling Tanks to( Inorganic Non-loxic: Material$ (sludge handling facilfties for water
purificalion plants. &and, gravel, stone, and other mining operations except recreational activities such as gem
(o) xeccwo*FT/TREATMENT m*ontPm:CaSSea
(")
Carbonaceous Stage
(/) A*m^lor�-mxPurity Oxygen System . .................... --............. ........ .......................... 2o
Diffused Air o
(n)Trkk4,)g Piker
'"' Rate .......................................................................................... ............................
StandardRate .................... ....... ............................... ................................................... 5
Packed Tower ..--'------'__----'---_----''—__—'--s
(*) Single stage system for combined carbonaceous removal of BOO and nhrogenour removal by
(sea dallAftion No. 12)(Points for this Nem have to be In addAion to hems
utilizingnWicalion
—'oih—_ than '— exl_--_ --ralion --__---............................................ —'......
Nutrient "clu ions to ""o«nvw eoo removal .................. ................................. ................. s
Biological cvnvm ("uupmuuns*)aou mn-----------_---------s
<u)
NItrogenous Slags
(U Aeration rhy Oxygen ov .zu
VVTrickling n/m,*IgoRate ....... ................... ............ —...... .................................................
manm"m Rate .---_--_
Packed Tower ....--.'---'--_—.--------------.----------.15
termittent
biologicalRecirculating
biological ..................................................................................................... 3
mwvw.............................. ____ ....... .—.......................................... '--'—'—'--'�
(o) nEmsn,onADVANCED Tnc*nwswnmaPWnocesSeo
(«)
Activated Carbon Bads
without ""m"n regeneration ....'-----'---'_------'*
withcarbon regeneration.................................................. ........................ ........................... m
(o)
Powdered mGranular mcfl»amxCarbon Feed -
without carbon regeneration .......... ................ ................................ ...... ----.............. '�
'with carbon regeneration ...................................................... .............................................. 10
Air.................................................. ........................................ .............................. ..................
uo°*moicoon
Process .............................................................................................. .................. ............ 1«
sleu �
(h)
Lard Application of Treated Effluent (see definition No- 22b) (not applicable for &and, gravel, stone
ymicnoom^w
.............................................................................................................................................. 5
o
(See d°nnillonwo. 26) ... ........................................ ....... ..-.2v
(k)
Polishing Ponds ' without xomoon--'----.—_--___---'—_---------.. 2

(1) Post Aeration - cascade............................................................................................................0
diffusedor mechanical...._ ..... ....................... ....... ..._................ __.......... ......... .- 2
(m) Reverse Osmosis.....................................................................................................................................5
(n} Sand or Mixed -Media Filters - low rate ........ __........... .................. .............. _ ................. ....... --.-..- .........2
highrata.....................................................................5
rocesses lor
moval
tal
(o) treatment processos former movaloofoxiicomate ails other than metal or cyanide.............................................15
r- iPl P � .........15
(7) SLUDGFTREATMENT
(a) Sludge Digestion Tank - Heated (anaerobic).. ................................... __ ............. _ ............ _ ...................... 10
Aerobic..... ........ ................... .................... .................................... ......... ............................................. 5
Unheated(anaerobic)....--................................................................................................................3
(b) Sludge Stabilization (chemical or thermal) .......... ............. ........... _...................................... ......... ................. 5
(c I Sludge Drying Beds - Gravity.......................................................................................................................2
Vacuum Assisted .......... ........................... ............ ...... ...................... ....................................... .............
..,.5
(d) Sludge Elulrlation..... .......... _................ . _................................................................................................5
(e) Sludge Conditioner (chemical or thermal) ..... .......................... ..................... ___ .........................................
..5
(1) Sludge Thickener (gravity).........................................................................................................................5
(g) Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(1)j..­ ... .... ­ .......................................... ... a
(h) Sludge Gas Utilization (including gas storage).............................................................................................2
(1) Sludge Holding Tank - Aeraled............. ....... .......•........................................................................................
5
Non-aerated ........... ........................................................... _ .................... _...... 2
{J) Sludge Incinerator (not Including activated carbon regeneration)................................................................10
(k) Vacuum Filter, Centrifuge, or Fiher press or other simi4ar dewatering devices ........... _ ......................................1 0
(8) RESIDUALS UTILIZATION/DISPOSAL {indudiN (nctnerated ash)
(a) Lagoons ... ....................................... .................................................. ........... ........................................2
(b) Land Application (surface and subsurface) (see deiinilion 22a)
by contracting to a land application operator or landfill operator who holds the land application permit
orlandfill permh.......................................................................................................................................2
(c) Dedicated Landfill(burial) by the parmitteo of the wastewater treatment facility ...............................................5
(9) DGt` =ECTK'N
(a) Chlorinalion ...................................................................................................5
(b)Dachlorinalion..................... ........... .......................... _...............................................................................
(c) Ozone.....................................................................................................................................................5
(d) Radiation......................................._...................................
(1 0) CHEMICAL ADDITION SYSTFM(S) ( see definhlon No, 9) (not applicable to chemica€ additions rated as hem (3)0).
(5)(a)(xi), (6)(a), (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 points each:
List............................................................. .........................................................................5
........................................................................................ .............................
.................................................................................................................................5
(1 1) MISCELLANEOUS UNrrSvPRDCESSES
(a) Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials Including wastes from mining
operations containing nitrogen or phosphorus compounds In amounts significantly greater than is common
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 ........................... ....................... .......................................•................---..........................._......._....3
(e) Stand -By Power Supply............................................................................................................................3
(1) Thermal Pollution Control Device ................ _.................................... ..........................................................
3
TOTALPOINTS..........................................................................
CLASS>r1CATION
CFassf .................... .......................................... ..................... ............... ......... 5-25 Points
Class11 ............................ ............................................................................. 26-50 Points
Classill........................................................................................................51-65 Points
Gass1V ................................ ................ ..................................................... ..66 -Up Points
-------------------------------------------------------------
Facilities having a rating of one through four points, Inclusive, do not require a certified operator.
Facilit(as having an activated sludge process will be assigned a minimum classificaton of Class II.
Faciihles having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class IL
Facilities having treatment processes for the biological removal of phosphorus will be assignod a minimum cfassifroalion of Class III.
-------------------------------------------------------------
.0004 DEFINITIONS
The following definitions shall apply throughout this Subchapter.
(1) Activated Carbon Beds. A physlcal/chemical method for reducing soluble orpanlc material from wastewater effluent; The column -type beds used In this
method will have a liow raja varying from Iwo to eight gallons per minute per square foot and may be either upflow or downflow carbon beds. Carbon may or
may not be regenerated at the wastewater treatment plant she;
(2) Aerated Lagoons. A basin in which all solids are maintained In suspension and by which biological oxidation or organic matter is reduced through artificia(Iy
accelerated transfer of oxygen on a flow-ihrough basis;
(3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen In a liquid by spraying, aghalion or diflusion;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours.
(4) Agriculturally managed site. Any she on which a crop is produced, managed, and harvested (Crop Includes grasses, grains, traes, 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 Regonerallom The regeneration of exhausted carbon by the use of a furnace to provide extremely high tempel-atures which volatilize and oxld(ze the
absorbed impurities;
Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent Ifmhs;
'antrifuge. A mechanical device In which cenirtfugal force Is used to separate solids from liquids or to separate liquids of d•Itlereni dansr;as;
,hemlcal Addition Systems- The addition of chemleal(s) to wastewater at an appilcatlon point for purposes of Improving solids removal, pH adjustment,
alinhy control, etc,; the capability to experiment with different chemlca}s 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 app3callon 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 Ilme, ferric chloride, or a polymer to wet sludge to toaies,ce the mass prior to
hs application to a dewatering device;
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing Inorganic, non-toxic materials from sand, gravel,
crushed sione or other similar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appudenances;
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitriticatbn- A single stage system required to achieve permit effluent limits on SOD
and ammonia nitrogen within the same biological reactor,
(13) Dochlodnallon. The partial or complete reduction of residual chlorine in a liqu d by any chemical or physical process;
rl At n....w.:e:....,,.._ n_..__.._ rti_ ....,., minn of nhrnla_n-trnnAri to nit --n nae'

X,5) E€ectrodiafysls, Process for removing IonFzed salts from water through the use of ion-selenrve Ion -exchange membranes;
(16) 171181 Press. A process operated mochanlcaily for partially dewatering sludge;
(17) Foam Separation. The planned frothing of wastewater or wastewaler eflivant as a means of removing excessive amounts of datargerr, materials through
the iniroduction of air In the form of lino bubbles; also tailed loan fractionation;
(18) Grit Removal. The process of removing grit and other heavy mineral matter from wastewater;
(19) fmholf Tank. A deep two story wastewater tank consisting of an upper sedimentation chamber and a lower sludge digestion chamber.
(20) Instrumented Flaw Measurement. A device which indicates and records rale of flow;
'21) Ion Exchange- A chemical process in which ions from two diflerent molecules are exchanged;
12) Land application;
(a) Sludge Disposal. A final sludge disposal method by which wet sludge may be applied to land either by spraying on the surface or by subsurface injection
(i.e.. chisel plow); (not applicable for types of sludge described In (l 1) of this Rule);
(b) Treated Elfluent. The process of spraying treated waslewaier onto a land area or other methods of application of wastewater onto a land area as a
means of final disposal or treatment;
(23) Microscrean. A low speed, continuously back -washed, rotalmg drum ilrlar operating under gray y conditions as a polishing method for remov;ng
suspended solids from eflluerx;
(24) Nitrification Process. The biochemical conversion of unaxtdoxed nhregon (ammonia and organic nitrogen) to oxidized nhrogen (usually nerate);
(25) Nhrogenous Stage. A separate stage of wastewater treatment designed for the spocific purpose of converting ammonia nitrogen to nitrate nitrogen;
(26) Phosphate Removal, Biological, The removal of phosphorus from wastewater by an oxicianoxic process designed to enhance luxury uptake of phosphorus
by the microorganisms;
(27) Polishing Pond. A holding pond following secondary treatment whh sufflclent detention time to allow settling of finely suspended solids;
(28) Post Aeration. Aeratfon fallowing conventional secondary treatment units to increase effluent i].O. or for any other purpose;
(29) Post Aeration. (Cascade) A polishing method by which dissolved oxygen is added to the effluent by a nonmechanical, gravhy means of flowing down a
series of steps or weirs; The flow occurring across the steps or weirs moves in a laidy thin layer and the operation of the cascade requires no operator
adjustment; thus, zero points are ass)gned even though this Is an essential step to meeling the limits of the discharge permit;
(30) Powdered to Granular Activated Carbon Feed. A blophys€cal carbon process that utilizes biologlcal activity and organic absorption by using powdered or
granular actfvated carbon, Virgin or regenerated carbon is feed controlled into the system;
(31) Preaeralionu A tank constructed to provide aeration prior to primary treatment;
(32) Preliminary Units. Unit operations in the irealmenf process, such as screening and comminution, that prepare the liquor for subsequent major operations;
(33) Industrial Pretreatment.
(a) Pre-treatment Unit, Industrial. The conditioning of a waste at its source before discharge, to remove or to neutralize substances injurious to sewers and
irealmer% processes or to etlect a partial reduction in load on the treatment process which is operated by the same governing body as the wastewater
treatment plan being rated;
b) Fre-treatment Program. Industrial - must be a Slate or EPA required program to receive points on the rating sheet;
(34) Primary Clarifiers, The first settling tanks through which wastewater Is passed in a treatment works for the purpose of removing setlleabie and suspended
solids and BOD which Is associated with the solids;
(35) Pumps- All Influent, effluent and in -plant pumps;
(36) Radiation. Disinfection or sterilization process utilizing dev;ces emitting ultraviolet or gamma rays;
(37) Reverse Osmosis. A treatmarn process In which a heavy contaminated liquid Is pressurized through a membrane forming nearly pure Ilquid free from
suspended solids;
(38) Rotating Biological Contractors, A fixed biological growth process In which wastewater flows through tanks In which a serfes of paftlaily submerged circular
surfaces are rotated;
(39) Sand Filters:
(a) Interninerd Biological. Fltrallon of effluent following septic tanks, lagoons, or some other treatment process In which further blodecomposftlon is
expected to produce desired effluents; Hydraulic loading rales on these filters are computed )n gpdrac and have a resulting low gprrUsf (fess than one);
b) Recirculating biological - the same type of sand titter as defaced in Subparagraph (39) (a) of this Rule with the added capability to recycle affluent back
through the sand tiller,
'40) Sand or Mixed -Media Filters. A polishing process by which efftuerg limits are achieved through a further reduction of suspended solids;
(a) low rate -- gravity, hydraulically loaded filter with loading rales in the one to three gpnVsf range;
(b) high rate — a pressure, hydraulically loaded filter with loading rates In the five gpmrsf range; At any rate, the loading rata will exceed three gprrVsi;
(41) Secondary Clarifiers. A tank which follows the biotogicW un[ of treatment plant and which has the purpose of removing sludges associated with the
biological treatment units;
(42) Separate Sludge Reaeration, A part of the contact stabilization process where the activated sludge is trarsfenred to a tank and aerated before ratuming ft
to the contact basin;
(43) Septic Tank A single -story settling tank in which settled sludge Is In contact with the wastewater flowing through ft tank; shall not be applicable for
septic tank systems serving single family residences having capacity of 2,000 gallons or less which discharge to a nitrification field;
(44) Sludge Digest)on The process by which organic or volatile matter and sludge is gasified, lqueffed, mineralized or converted into more stable organic matter
through the activity of living organisms, which Includes aerated holding tanks;
(45) Sludge Crying Beds, An area comprising natural or artificial layers of porous materials upon which digesied sewage-%lctdge Is dried by drainage and
evaporation;
(46) Sludge Elutriation. A process of sludge condhioning In which certain constituents are removed by successive washings wfth fresh water or piarit effluent;
(47) Sludge Gas Utillzalion. The process of using sewage gas for the purpose of heating buildings, driving engines, etc.;
(48) Sludge Holding Tank (Aerated and nonaerated). A tank ullRzod for small wastewater treatment plants rat containing a d3gestsr in which sludge may be
kept fresh, and supemalant withdrawn prior to a dryfng method (i.e. sludge drying beds); This may be done by adding a small amount of air slmpfy to keep the
sludge fresh, but not necessarily an amount that would be required to achieve stabitlzallon of organic matter. A nonaerated tank would simply be used to
decant sludge prfz�r ?o dewatering and would not allow long periods (several days of detention) without tesuhing odor problems;
(49) Sludge lnclnerators. A furnace designed to bum sludge and to remove alt moisture and orombustlt is malerIals and reduce the sludge to a sterile ash;
(50) Sludge Stabilizasfon (Chemical on Thermal). A process to make troatad sludge less odorous and pulroscilbe, and to reduce the pathogenic organism
content; This mL4y be done by pFf adjustment, chlorine dosing, of by heat treatment;
(51) Sludge Th ckensr. A type of sedimoniatlon lank In which the sludge is permitted to settle and thicken through agitation and gravity;
(52) Slabs`lizatlon lagoon, r type of oxidation lagoon In which biological oxidation of organk: matter is effected by natural transfer of oxygen to the crater from
air (riot a polishing pond);
(53) Stand -By Power Supply. On site or portabia electrical generating equipment;
(54) Slatic Screens A stationary screen designed to remove solids, including non -biodegradable particulate (ffoatable solids, suspended solids and BOLD
reduction) from municipal acid industrial wastewater treatment systems;
(55) Tertiary Treatment. A stage of treatment following secondary which is primarily for the pufpasa of a(lluent polishlog; A settling lagoon or sand or coal filter
might be employed for this purpose;
(56) Thermal Polluilon Conirol Device, A dev" providing for the transfer of heal 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 condflioning process by which heat is added for a protracted period of tim to Improve the dewaterablllsy of sludge by the
salubilizing and hydraulizing of the smaller and more highly hydrated sludge panicles;
(58) Toxic Materials. Those wastes or combinations of wastes, including disease -causing agents which after discharge and upon exposure, Ingestion, inhalation
or asslmFalion Into any organism, either directly from the environment or 4-o directly by Ingeatlon through food chains, will cause death, disease, behavloral
abnormalities, cancer, genetic mutations, physWogical malfunctions (Including rmaffunclions In reproduction) or physical deformations, In such organisms or their
offspring; Toxic materials Include, by way of Illustration and not flm:4allon: lead, cadmium, chromium, mercury, vanadium, arsenic, zinc, orho-nhr-chlorobanzene
ACS), polychlorinated biphenyls (PCBs) and dichiorodiphenyl trichloroethane (DDT); and any other materials shat have or may hereaher be determined to have
x1c properties;
,9) Trickling Fitter. A blological treatment unit consisting of a malarial such as broken stone or rock over which wastewater is distnbuied; A high rale trickling
tiller is one which operated at between 10 and 30 mgd per acre. A low rate trickling filter Is one which is designed to operate at one to four mgd per acre;
(60) Trickling Flher (Packed Tower). A plug flaw type o1 operation In which waslewater flows down through suo cassive layers d media or filtrate material; Organic
malerial Is removed continually by the active blologtcal fixed growth m each successive layer. This method may produce 'secondary' quality efiluent. or may be
adapted to produce a nitrified effluent;
(61) Vacuum Flier, Centrifuges, or Fifter Presses. Devices which are designsdlo remove oxcess water from either digested or undigested sludge prior to disposal
or further treatment.