WQ0002564_Final Permit_19950305

State of North Carolina
Department of Environment,
Health and Natural Resources 4 • A
Division of Environmental Management
r r �
�1� T
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary 1� E H
A. Preston Howard, Jr., RE., Director
April 5, 1995
Mr. Harold Rothfuss, Plant Manager
Georgia Pacific Corporation
Post Office Box 308
Dudley, North Carolina 28333
Dear Mr. Rothfuss:
Subject. Permit No. WQ0002564
Georgia-Pacific Corporation
Whiteville Plywood Plant
Wastewater Recycle System
Columbus County
In accordance with your application received November 14,1994, we are forwarding herewith
Permit No. WQ0002564, dated April 5, 1995, to Georgia-Pacific Corporation for the continued operation
of the subject wastewater recycle system.
This permit shall be effective from the date of issuance until March 31, 2000, shall void Permit
No. WQ0002564 issued July 24, 1990, 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 reQv,.h in future
compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North
Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447,
Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
If you need additional information concerning this matter, please contact Ms. Angela Y. Griffin at
[phone] ext. 554.
Sincerely, ��Jn(� ; p
�?
r� Q
A. PressIn Howar , Jr., P.E. � CD� -r
r �
1p
cc: Columbus County Health Department
Wilmington Regional Office, Water Quality Section AI
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/ 1 a% 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
Georgia-Pacific Corporation
Columbus County
FOR THE
continued operation of a 3,000 GPD mobile equipment wash wastewater recycle system consisting of a
curbed concrete wash station collection slab, 40 feet by 30 feet, a slab drain, a wastewater grit trench, a
primary sump, and oil separator, a secondary sump with a 100 GPM pump, approximately 850 linear feet
of 3 inch force main which goes to the flyash scrubber system; a 100,000 GPD Log Vat wastewater
treatment and recycle system consisting of one debris screen, a 158,000 (3 compartment) cooling and
surge basin, a 270,000 gallon aeration basin with three 15 hp floating aerators, a clarifier and sodium
hydroxide feed; a 3,000 GPD veneer dryer system consisting of a bar screen, a 20,000 gallon storage
tank; also a 1.44 MGD Flyash Scrubber water recycle system consisting of two 118 feet by 25 feet by
10.5 feet (L x W x D) concrete sedimentation basins, discharge of scrubber water into the settling basins,
and a clear water sump with dual 1,000 GPM pumps and all associated valves, pipes and appurtenance to
serve the Whiteville Plywood Plant, with no discharge of wastes to the surface waters, pursuant to the
application received November 14, 1994, and in conformity with the project plan, specifications, and other
supporting data subsequently filed and approved by the Department of Environment, Health and Natural
Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until March 31, 2000, shall void Permit
No. WQ0002564 issued July 24,1990, 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. 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.
6. 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.
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 clean water basin 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.
Y
12. Adequate inspection, maintenance, and cleaning shall be provided by the Permitteigmto
insure proper operation of the subject facilities. Q,
13. The Permittee or his designee shall inspect the wastewater recycle facilities4 pr(Yent
malfunctions and deterioration, operator errors and discharges which may cause or lei to
the release of wastes to the environment, a threat to human health, or a nuiace--:�The
Permittee shall maintain an inspection log or summary including at least the date and tivie of
inspection, observations made, and any maintenance, repairs, or corrective actions t*n 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 revolve 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).
2

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. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone
number [phone], 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, of 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.
F 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.

20. 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 5th day of April, 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston t1oward, Jr., P ., Director
Division &-Environmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0002564

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RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility:
)wner or Contact
pl- —31
Mailing Address: l UL� >Ce -Z
County: „ CDw,.tis�t;; _ Telephone:
Present Classification: New Facility Existing Facility
NPDES Per. No. NCOA Nondisc. Per. No.W d d Z.56y Health Dept -Per No.
Rated .by:_ :ri;,E. Was, „Telephone:��tQ�°�I-3ba� Date:_ LLLII-��(
Reviewed by: Health Dept. Telephone:
Regional Office
Central Office
ORC: Grade:
Check Classification(s): Subsuface Spray Irrigation
Wastewater Classification: (Circle One) (l } I! lEl IV
SUBSL PFACE CLASS
(ahock all units that apply)
1_ ,septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4.sand �saand filters
grease lrapAnterceptor
6-oWwatsr separators
7. gravity subsurface treatment and disposal:
S.-Pressure suh&-Irfacs treatment and dlposai:. .
n:
Telephone:
Telephone:
_Telephone:
Land Application
Total Points:
SPRAY IRWAT ON CLASSIF]CATiON
(check all units that apply)
I.
preliminary treatment (definition no. 32 }
2.
lagoons
3-septic
tanks
4.
,_„pump tanks
5�
pumps
6„
�-_sand filters
7,
grease trapfinterceptor
8.
,oi-Uwater separators
9-disinfection
10.
chemical addition for nuirientlaigae control
11.
spray Irrigation of wastewater
in addition to the above classifications, pretreatment of wastewater In excess of these'
be rated using the point rating system and will require an operator with an appropriate
LAND APPLICAT10N1RESIDLIALS CLASSiF1CATM (Applies only to permit holder)
I. Land appiication of biosalids, residuals or contaminated soils on a designated site.
WAS'TEWATERTREATMENT FACtif[YCILAS ICAMN
rW
co r�Qonej shall
dui' cer'tlflcetlon.
The following systems shalt be assigned a Class I classification, Unf=� the flow Is of a significant quantity or the technology Is unusually
Complex, 10 require consideration by the Commission on a case -by -case basis: (Check If Appropriate)
1.- ^Oitlwafer Separator Systems consWing only of Physical separation, pumps and disposal;
2` Septic Tank1sand Fitter systems consisting only of septic tanks, dosing apparatus, pumps,sand Oters, disinfection
and direct discharge;
3. ,,,,,,Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4-- - Closed -loop Recycle Systems; c:
5.-- ,.,..,_Groundwater Flemediatlon Systems consist ng only of oillwater separators, pumps, air -stripping, carbon adsorption, dWnfecUon
and disposal;
6, Aquacufture operations with discharge to surface waters;
7_ _ - _ Water Plant sludge handling and back -wash water treatment;
^_Seafood processing consisting of screening and disposal.
9 ^ Single-family discharging systems, with the exception d Aerobic Treatment Units, will be ciassif'red it permitted after July 1,
1993 or if upon Irspection by the Division, k Is found that the system is not being adequslety operated or maktdr:ed.. Such
systems will be notified of the classification or reciasOi Uon by the Commission, in wriling.

The following scale is used for rating wastewater treatment facilities: (circle appropriate points)
RENT POINTS
(1) Industrial Pretreatment Units or Industrial Pretrsatm&m Program (see definition No. 33)...................................................4
(2) DESIGN FLOW OF PLANT IN gpd (not applicable to non-cordnmrnated cooling wators, sludge handling facivAles for
water purification plants, totaAy closed cycle systsmt(see dorinhion No. 11j and facilities consisting only of Kam
(4)(d) or horns (4)(d) and (11)(d)]
0 - 20,000. _ . �... .......................1
20,001 - 60,000.... ......... ........ ... _.. ... ,...._.. »,.....�.. ... .� _........»................2
50,001 - 100.000:......... ._,. .. .. �. ........ .... » . .. .. «.. .3
100,001 - 250.000......................................-..._......... _.. .. ... _ .-........
.....
250,001 - 600 .. 000.............r.................. ......�.. ..... .. .� S
6D0,001 - 1.000,000.................. .............. ....... .«...-..................
1.000,001 - 2,000,D00......... ..._.............................. ................ ......_..«......... .....-.... ......................... 10
2,ODO,001 (and up) rate 7 point additional for each 200,DD0 gpd capacity up to a maximum of .._._..__.30
Design Flow (gpd)_
(3) PRELIMINARY UN€TS/PADCESSES(see delinklonNo.32)
(a) Bar ..-..-... ...........
or
(b) Mechanical Screens, Static Screens or Comminuting Devices-_-__ ----------
2
(c) Grit .... .......... 1
or
(d) 601sctardcal orAamed Grit Rernoval..........
(0) Flow Measuring Devbs
or -
(f ) instrumented Flow Measure ».»_ ....... _ .... ... 2
(g) Pro asMilo n__.,._»�._........ _. �. ..�. ._.�.__.. .. .. 2
(h) Influent Flow Equalization ............... .... ......... .»...................... ..... ............... ... - - ^---._.-------------
(1) Grease or Oil Separators - .........
Dissolved Air Flotation ................................................».................. ......... _.-- ............. ...3
()} Prochiorinatlon. „„ _... _. „._ _ ..» _,_ _�_._. . r..................._...5
.....................
(4) PRtMAWTREATMENT WrrVPFK)CESSES
(a) Septic Tank (sea definition No. 43).__._ ... ... ---------
(b) lmhoff Tank ......... ......�.r.....................5
(c) Primary Clartflers ...................... 5 ......5
(d) Settling Ponds or Settling Tanks for "anlc Non-toxlc Materials (sludge handllrg facllMise for water
purlficwtfon plants, sand, gravel, stone, and other mining operations except recreasbnvt activities such as gem
orgold mining) .......................... __. ...... _ ... ._.» ... .. , .....................2
(5) SECONDA iYTREATMENT LUTS41FIOCESSES
(a) Carbonaceous Stage
[I) Aeration -High Purity Oxygen Sysism..»» _ _
DWuced Alr System ........... 0
Mechanical Air System (fixed, frosting or rotor) -.
Separate Sludge 3
(if) TriidingFilter
High Rate._-- ..,_.7
Standard Rate.. —
Packed Tower. - .. s
(in) ftlogical Aerated Fitter or Aerated ftlogfcA4 fVlor
Vv) Asi*lpd Lagoons..
(v) RotatIN Biological Con laclors.....
(VI) Sand Filters-Intermltlem bliological
Recirculating biological. ......_._... r --- 3
No) Stabilization
r (Ex) Single state systom for combined carbonacoouz ry naval of BCD and nitrogonous removal by
nhdncalfon (too "InMion No. 12)(Points for this Kom have to be in add"abn to Korn$
(5)(a)(I) through (5)(a)(vill),
utilizing the extended aeration process (see definition No.3a)
utplzing other than the extended aeration process. ...a
(x) Nutrient additions to enhance BOD
(xl) Biological Culture (Super Bugs')additfon.- - --._.--....--............-_ .-----....,--s
(b)
Nirogonous Stage
(1) Aeration . High Purfty Oxygen System.
h0
DMiusedAirSystom.. .. _..........,...................._..........._........_10
Mechanical Air System (fixed, ffoatlW or rotor)_
Separate Sludge
01) Trickling FAter-High Rate
7
Standard Hate..
Packed Tower..........
cc) Blologrcal Aerated Filter or Aerated Biological F1Mar
-----10
(Iv) Rotatfng Biological
(v) Sand Fitter - IntermMtont
Recirculating biological. --
(VI)
(6) TETiWWORADVANCEDTRcATMEWLNTSPAOGZSSFS
(a)
AcWated Carbon Beds- i.
without carbon rogeneratiort................
--- •-�
with carbon regeneration.
(b)
Powdered or Granular Activated Carbon Food-
wlthout carbon regeneration —
with carbon
Air
d)
is)
Donkrtiication Prows _ . ».
Electrodlalyais. ,
(f)
Foam Separation.............
W
Ion
(h)
Land Application of Treatod Etfluert (sea dannitlon No. 22b) (not applicable for tand, gravel. stone
and otter similar mining operations) by high rate k1hration.
�i)
()
Microccreens..... _�_. .. ..... .. ... .. __ _
Phosphorous Removal by Biok)gk3l Processes (See donnidon No. 26)-..-----
--
(k)
Polishing Ponds - without aeration. -
with sa ratlon.._.... - _
.......,--- 5

.................... .............. ........ ......................................................
dillused or mechanlcal..«......................................................................................................2
...................... �
(m)
Ravers* Osmosis.............................................................................. ....
...................5
(n)
Sand or Mixed -Media Filters - €ow,. rata.....«...._........._...._..........................................._....-._._..............:...2
Highrate ..... ........................................ -....................5
(0)
Treatment processes for removal 01 metal or cyanide ............................... .............................. .....................
t 5
(p)
treatment processes for removal of toxic materials other than metal or tyanlda.. «. ... _......... ._.t5
(7) SLUDGE TRE,4TivP4T
(a)
Sludge Digestion Tank - Healed (anaerobic}......«.._._......._._«----......._................_.......- ..... ................ 10
Aerobic..... ........... ......... _....... ._....................... ............ ..........
-_... .............
Unheated(anaerobic).. .. ...........................................................................----_._.........._....3
(b)
Sludge Scab€Ilzation (chemical or thennal)................ .».......................................... »............ -_...................
(c)
Sludge Drying Beds - linty€ty.............. ...............«............................._........._._ --
.................2
VacuumAss€s1ed.................................................................................................... . --�._.�_...........5
(d)
Sludge lutriallon..................................................................................... «.............« ..__-..
............ .....3
(a)
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)).................................. «....._.................. a
(h)
Sludge Gas Utlllzallon (incluftg gas storage) ........ ......... _........ ...............................2
(1)
Sludge Holding Tank Aerated ........... .... ..........«....«._.._...»............................. _ ... ....r.......................
Non -aerated ................................. ................................................................ ..- ....... ............
......2
i1?
Sludge Indrgrator (not indudEng activated carbon regeneration) ........................................ _............ I .... 110
(k)
Vacuum Fitter, Centrifuge, or Flier Press or other similar dawatering devices ..«..___---- ._«_0
(a) RESIDUALS
UTILIZAT70WOlSPOSAL (ndudtng Incirwrated ash)
(a)
Lagoons-- ....... .. ... .._...............................................I...............2
(b)
Land Application (surface and subsurface) (see definitions 22a)
by conirazaing to a land application operator or landfill operator who holds the land appticatlon
permit
or landfill pemvt........................... ........................................ _-...... .... ....................... ___ ................... 2
(c)
Dedicated Landflll(burial) by the parmMse of the wastewater treatment facillty.....«.....«.._._,.«........._._..3
(a)
Chlorination ........ ............... ............ ......... ... ....... ........ «............. ..................................
...................
(b)
Dechlorination.............. ...... ......... ».......................... ...................... ................................... ...................... 5
(c)
Ozone.___....... ................................................»...........................................--........._....................5
(d)
Radiatlon_................................................................................................... ...... .... 5
(1 0) CHEMICAL ADDffltn)N SYSTEM(S) ( see deflnhian No. 9) [not applicable to chemicaf additlons rated as hem
(5)(a)(xl),-()';)(
Ust
} 5 paints sac .h: .0.S) H......................_...__................................................
(7)(a), (9a), {D)(b} or 9) (c .._.......
(VV (6j{b), (7)(b), .. .........._._
...............
................................... .............. ... «........ « ....... « «.............................. _.,...................
5
-Y
...................... ««.....«......«.....«....«............................................. r.......... ................. .3
.............. .........I ............................ _........... _................ ............... I ........... ....... .........
( i 1 } 1164SC83ANECLLS L"TsrPROCESSES
(a)
Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials Indudnp wastes
from mining
operations containing nitrogen or phosphorus compounds In amounts significantly greater than k common
for domestic wastewater................_......._._.........................................................................-...................A
(b)
Effluent Flow Equaltzation (not applicable to storage bas€ns which are inhwrent In land appW"Ilon systems).._..2
(0)
(d)
Stage Discharge (not applicable to storage basins Inherent In land application
Pumps..__................»..».....« ........ » « «. ..... �........�_.. _ ���....._
.3
(6)
Stand -By Power Supply..
(1)
Thermal Pollution Control Device .... ... . ............. ,_.... ....... ... _._«.« ... .... _
...TOTAL FOff+fTS....-----�...«
::
............................................-_.«
CLASSFIC-ATICN
Polrrts
Points
Faints
C7
.._..... _.»..»«. _. .... «.« « .«...66-Up Points
b
C7
Fatdikies having a rating of one through four points, Induslvs, do not require a certified operator.
n
Faclthles having an adMted stodge process will the assigned a minimum rdabn of Chas 1L
l0
Facilities having treatrnent processes for the remov-al of metal or cyanide will be assigned a minimum classlllcation of Class it.
Cr]
f'
?7
Facilities having treatrnant procemssss for the biofoocal removal of phosphors will be aaalgned a minlrmrn ctaasllkailon of Class IIL
91 -
Ao04 DFFINIT1CY IS
The following definhlons shad! apply throughout this Subdtaptor.
(1) Acttvated Carbon Beds. A physlcal/chemlcal method for reducing soluble organic rnaferW from wastewater atfluent; The column -type beds used in this
method will have a lbw rate varying from two to eight gallons per minute per square toot and may be either upflow or downftow carbon beds. Carbon may or
nay not be regenerated on the wastewater treatment plant she;
(2) Aerated lagoons:. A basin In which all solids are maintained In suspension and by which bloiogical oxkdaikxl or organic matter Is educed through ar ifxcally
acceleraled transfer of oxygen on a flow -through basis;
(3) Aeration. A process of bringing about tntimats contact between sir or high purtry oxygen in a liquid by spraying, aghaticn or dh-Ak;,nX3a) Extended
Aeration. An activated sludge process vtiltzing a minimum hydraulic detention time of. IS hours.
(4) Agricuhurally managed she. Any she on which a crop Is produced, managed, and harvested (Crap includes grasses, grains. tress, air.);
(5) Air Stripping. A process by which the ammonium ion Is first converted to dlssalved ammonia (pH ad[urdment) with the ammonia shen released to the
atmosphere by physical means; or other similar processes which remove petroleum products such as benzene, toluene, hind xyfene;
(0) Carbon Regeneration The regeneration of exhausted carbon by the usa of a furnace to provide extremely high toWeraiurss wtJ&, votatiltze and Oxtdlza the
absorbed knpurhlas;
M Carbonaceous Stage. A stage of wastewater treatment designed to achieve *secondary effluent limns;
(8) Centrifuge, A mechanical device In wNch carttrffugai force is used to separate solids from aqulds or to separate liquids of dNerant densY,.as;
(9) Chemical Addition Systems- The addhlon of chemlcaf(s) to wastewater a: an applicatlon palm for purposes of Improving solids removal, pH ad)uctmertt,
-lkalinhy control, etc,; the capability to experimard with ditferarrt chemicals and dMarerrt application polms to achieve a speclib result wit be considered one
stem; the capability to add chamical(s) to dual unha will be rated as one system; capability to add a chemical at a different appficailon paints for dihererd
irposes wilf result In the cystams being rated at separate system;
(10) Chemical Sludge CondMoning. The addition of a &wmkal compound such as Hme. Panic chloride, or a polymer to wet shxdgs to pcalesce the mass prior to
its application to a dewatering device;
(11) Closed Cycle Systems. Use of hokiing ponce or hhokfng tanks for oonWnmefl of wastawalen containing V*rganic non-SoxIC maurlals from sand, 9reve4
crashed stone or other similar operation. Such "am* shall carry a maximum of two points regardless of purnpIng N44111 % or only otter appurteruric*C
(12) Combined Removal of Carbonaceous SOD and Nitrogenous Removal by Ndufficatlon- A single stags system required to achieve per.:it effluent ;imhs on SOD
and ammonla nitrogen within the same biological reactor,
(13) Dechlorlrutior. The partial or complete red=lon of residual clhlorine In a liquid by arty ctherriCal or physical process;
(14) Denhrtlicatlon Prpoess. The converelon ct nitrate-rhhrogen to nitrogen gas;