WQ0011890_Final Permit_19960313

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
March 13, 1996
Mr. James W. Owens, VP for Business Services
Coastal Carolina Community College
444 Western Boulevard
Jacksonville, NC 28546-6899
Dear Mr. Owens:
A 4
IDEHNR
Subject: Permit No. WQ0011890
Coastal Carolina Community College
Groundwater Remediation Facilities
Onsiow County
In accordance with your application received December 27, 1995, we are forwarding herewith
Permit No. WQ0011890, dated March 13, 1996, to Coastal Carolina Community College for the
construction and operation of the subject groundwater remediation facility. Please note condition IV. 10 of
this permit. The recovery wells (design flow of 8 gpm each) and the remediation system (design flow of
10 gpm) shall be operated at a flow not to exceed 720 GPD, the design flow of the infiltration gallery.
This permit shall be effective from the date of issuance until February 28, 2001 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 problem:.
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 the
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 have any question;
concerning the Groundwater Conditions or groundwater monkoring requitcnit=s, please L;011.act ivl:.
Brian Wooton in the Groundwater Section at 919-715-6164_ If you need any additional information
concerning this matter, please contact Mr. Randy Kepler at [phone] extension 544.
Sincerely,
A. Prest Howard, Jr., P.E.
cc: Onslow County Health Department
Coastal Environmental Services Co.
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Bob Cheek, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycledl 100% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
GROUNDWATER REMEDIATION 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
Coastal Carolina Community College
Onslow County
FOR THE
construction and operation of a 720 GPD groundwater remediation facility consisting of three recovery
wells capable of pumping 8 gpm, a 10 GPM oil/water separator with 55 gallon free product recovery, a
220 gallon surge/pump tank with 27.3 gpm submersible pump, in -line flow meter, a pressure sand filter, a
pressure bag filter, two, 55 gallon 10 GPM granular activated carbon canisters (total of 200 Lbs. of
carbon) in series, a hot water heater unit/circulation pump, a 165 gallon post aeration tank with two air
diffusers at 4 to 5 CFM per diffuser and a 25 CFM blower, a totalizing flow meter, a 165 gallon nutrient
feed tank and a ten unit (400 GPD) and eight unit (320 GPD) infiltration gallery for a total loading rate of
720 GPD to serve Coastal Carolina Community College, with no discharge of wastes to the surface
waters, pursuant to the application received December 27, 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 February 28, 2001 and shall be subject
to the following specified conditions and limitations:
1. Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with this permit, the approved plans and
specifications, and other supporting materials. Mail the Certification to the Water Quality
Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535.
2. The Wilmington Regional Office, telephone number 910-395-3900, shall be notified at
least forty-eight (48) hours in advance of operation of the installed facilities so that an in -
place inspection can be made. Such notification to the regional supervisor shall be made
during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday,
excluding State Holidays.
3. This permit shall become voidable if the soils fail to adequately assimilate the wastes and
may be rescinded unless the facilities are installed, maintained, and operated in a manner
which will protect the assigned water quality standards of the surface waters and ground
waters.

4. 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.
5. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this facility.
b. Any 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.
a
7. Diversion or bypassing of the untreated groundwater from the treatment facilities is
prohibited.
1. The facilities shall be properly maintained and operated at all times
2. 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 1I, III, and 1V facility at least daily, excluding weekends and
holidays, an6must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202. Once
the facility is classified, the Permittee must submit a letter to the Certification Commission
which designates the operator in responsible charge within thirty days after the wastewater
treatment facilities are 50%n complete.
3. 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.
91 .1V ► ta..
1. 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.
2. Noncompliance Notification:
The Permittee shall report by telephone to the Wilmington Regional Office, telephone
number 910-395-3900, 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.;
2

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.
l . The bottom of the infiltration beds (galleries) shall not exceed five feet below land surface.
2. Monitor wells MW-1, MW-2, MW-3, MW-4, MW-7 and MW-9 (formerly DMW-1 - deep
well), depicted on attachment A, shall be sampled every March, July and November for the
following parameters:
Water Level pH
TOG NO3
Phosphorus Dissolved Oxygen
CO2
EPA Method 610 (including BTEX,MTBE)
The measurement of water levels must be made prior to sampling for the remaining
parameters. The depth to water in each well shall be measured from the surveyed point on
the top of the'easing.
The measuring points (top of well casing) of all monitoring wells shall be surveyed to
provide the relative elevation of the measuring point for each monitoring well.
The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on Form GW-59
[Compliance Monitoring Report Form] every April, August, and December.
3. The influent and effluent from the treatment system shall be sampled initially after system
start-up then once every two weeks for the first three months and monthly thereafter for the
parameters specified below:
PH TOC
NO3 Phosphorus
Dissolved Oxygen CO2
EPA Method 610 (including BTEX, MTBE)
The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, F.O. Box 29578 Raleigh, N.C. 27626-0578 within 30 days of
sample collection.
4. Isoconcentration (lines connecting points of equal concentration) maps in the horizontal
directions shall be developed for each constituent detected, in addition to total BTEX, from
the groundwater monitoring data following each tri-annual sampling event A water level
contour map must also be developed on a quarterly basis. These maps shall be submitted
along with all other monitoring data (GW-59 forms) for that period.

5. The groundwater recovery, treatment and disposal system shall be inspected weekly. If it
is determined that the system is malfunctioning, all repairs should be made as soon as
possible and reported to the Groundwater Supervisor at the Wilmington Regional Office
(telephone [phone]) within 48 hours.
6. The groundwater treatment system shall consistently achieve at least a 95% treatment
efficiency (i.e. remove 95% of the influent contaminants) prior to discharge to the
infiltration gallery. The treated water discharged to the infiltration gallery must not violate
the State Drinking Water Standards for any constituent_ If the treatment system fails to
consistently achieve this standard, additional treatment units or changes in operational
methods, may be required.
7. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in
15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is
for the disposal system constructed after December 31,1993 is established at either (1) 250
feet from the waste disposal area, or (2) 50 feet within the property boundary, whichever is
closest to the waste disposal area. An exceedance of Groundwater Quality Standards at or
beyond the Compliance Boundary is subject to immediate remediation action in addition to
the penalty provisions applicable under General Statute 143-215.6A(a)(1).
In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the
disposal systems midway between the Compliance Boundary and the perimeter of the
waste disposal area. Any exceedance of standards at the Review Boundary shall require
remediation action on the part of the pemaittee.
Any addition M groundwater quality monitoring, as deerned necessary by the Division, shall
be provided.
9. All components of the groundwater recovery, treatment, and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system..
10. The design capacity of the system shall not exceed 720 GPD.
V . INSPECTIONS
Adequate inspection, maintenance and cleaning shall be provided by the Permittee to insure
proper operation of the subject facilities.
2. The Permittee or his designee shall inspect the groundwater recovery and treatment
facilities to prevent malfunctions and deterioration, operator errors and discharges which
may cause or lead to the release of wastes to the environment, a threat to human health, or a
nuisance. The Permittee shall maintain an inspection log or summary including at least the
date and time of inspection, observations made, and any maintenance, repairs, or corrective
actions taken by the Permittee. This log of inspections shall be maintained by the Permittee
for a period of 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.
3. 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 disposal site or facility at any reasonable time for the
purpose of determining compliance with this permit, may inspect or copy any records that
must be maintained under the terms and conditions of this permit, and may obtain samples
of groundwater, surface water, or leachate.
4

Issuance of this permit does not constitute approval for reimbursement from the Leaking
Petroleum Underground Storage Tank Cleanup Funds (15A NCAC 2P).
2. 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.
3. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
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 this request will be considered on its merits and may or may
not be approved.
5. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of this project.
6. 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).
7. 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).
The issuance of this petit 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.
9. 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 Thirteenth day of March, 1996
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston . oward, Jr., Ph, Director
Division of nvironmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0011890

Permit No. WQ0011890
March 13, 1996
I, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project,
Project Name
Location
for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation
of the construction such that the construction was observed to be built within substantial compliance and
intent of this permit, the approved plans and specifications, and other supporting materials.
Signature
Date
Registration No.

P1iR'vIIT NO• WQ0011890-N/GW96010
COASTAL CAROLINA COMIN UNITY COLLEGE
GROUNDWATER RE -MEDIATION
AIR & CGW PIPING IN
3" PVC CONDUIT TO
RECOVERY WELLS
( DEPTH OF BURY 3' BLS)
ROUNDWATER TREATMENT
(STEM IN BUILDING ON
)NCRETE PAD
EE .DETAIL SHT.3)
a
•
IB�UTION
JOj e rE �f fi�
GRASS
EXISTING
MANHOLE
O
illlll I AST
MW-7 24„ CB � �—
RW-2
EXISTING (M-K-6)
TRANSFORMER
BOX (BY CP&L)
18"
':>-, --mm%W-
MAINT,
o FIRST
FLOOR
r � ;a" �' iKtif` of � •
�~ \
C NC. WALL -3 MW- �"
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m
RW-I i1IW_9 ( DEEP WEIJ
(MW"5) o Q (DMW-1)
,( O/A•_S APPRQID[ATT
DMOLVED C
m —3
W T
Ml;-2
T
INFILTRATION GALLERY
(SEE DETAILS i & e )
� W
SCALE pi
N
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RATING SCALE FOR CLASSIFICATEON OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: LDAS T Au- LAF --IryA
Owner or Contact Person: s W• 0w -.
Nailing Address: 4AA ,�{aG
County: i­.� Telephone: i a - 5 122 f
Present Classification: New Facility '--A _Existing Facility
NPDES Per. No. NC00 Nondlsc. Per, NA�Health Dept. Per. N
Rated by: 2 N31-1 ,--bsaLw o. Telephone: Dale:.
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone, -_
Check Ciassificatien(s): Subsurface Spray Irrigation LandApplication
Wastewater Classification: (Circle One) � II III IV Total Points: CAW �c�m-�
N! PLPANT PROCESSES AND ,RMTEO 00' ROI EOUIPMENi VJ )CH ARE AN INTEG AL PART OF INDUSTRt 1-,PROQir-Ti )N SHALi._
. G c THE p —
y c j6bEN' ].LINES ARE
SUBSURFACE CLASSIFI-AT)ON
(check all unils that apply)
1. septic lanks
2. pump tanks
3. siphon or pump -dosing systems
4- sand filters
5. grease Iraplintercepidr
6. oillwater separators
7. subsurface Irealment and disposal:
oravity
___pressure
Pretreatment of wastewater in excess of these
system and. will require an operator wilh an
SPRAY IRRIGATION CLASSIF}CATION
(check all units that apply)
I. preliminary treatment (definition no. 32 )
2, lagoons
3. septic lanks
4. pump tanks
5. pumps
6. sand fillers
7. grease Irapllnterceptor
e. oillwater separators
disinfection
10. chemical addition for
nulrlenllalgae control
11,,­--spray irrigation of wastewater
t.omponents shalt be rated using the point rating
appropriate dual certification.
LAND APPLICATIOtN/RESIDUALS CLASSIFICATIOfd (Applies only to permit holder)
1. _ Land application of bibsolids, residuals or conlaminated soils on a desionated site.
WE.STE14'ATEF; TRE./M,4l1t rr FACTLr lY CLA55;FIvATON
The following syslems shall be assigned a Class I classification, bless the flow is o[ a significant quantity or the lechnclog.y is
unusually complex, to rec,uire consideration by [heCommission on a case -by -case basis: (Check if Approprialej
Oilry,aler Separator Systems consisting only of physical separation, pumps and disposal;
2. Sep!ic Tank/Sand Filter Syslems consisting only of septic tanks, cosing'apparatus, pumps,sand tillers, disinfection.
and direct disclZarge;
3- Lac000 Systems consisting only of preliminary treatment, lagoon;, pumps, disWection, necessary chemical
trea',menl for algae or nutrient control, and direct disch8rge',
4. Closed loop Recycle Systems:
5. `� Groundwater Remedialion Systems consisting only of pumps, air -stripping, carbon adsorption, disinle4lion and
disposal` Xr���tg2py� a� �rit:t 2y
6. Fish farms with discharge to surface waters;
7. V"aler Plan[ sludge handling and ba✓:-wash wale, Irealment,
S. Sealaod processing consisting of screening and disposal,
9- Single-family dischargiag systems with the exception of Aerobic Treatment Uniis, will be class;lied it permilled after
July 1, 1993 or it upon inspection by the Divisior. i; is found lhal the system is nol being adequa',ely operaled or
mai n;Lined Such systems will be noti!ied cl ;he 6ass4ica!ion or rec{assific flan by die :ornmi ssicn, in wrllino

The follc�ling scale is used for rating wastewater treatment facilities: (circle appropriate
points)
rrEM POINTS
( 7 )
lnduslrSal Pretreatment Units or Induatrla) Pretreatment Program (sea delinidon No. 33)....................... :........................... 4
(2)
DE:�iGN
FLOW OF PLANT IN gpd (n01 applicable to non•oontaminated cooling waters, sludge h"ing
fa,iiilias
for water purilicalion plants, totally Closed cycle cyslernstsae defindiorY No. 11), and latiieies
consisting
only of Item (4)(d) or Ilems (4)(d) and (I Q(d)]
0 - 20,000.............................................................. ............ .................... .................... I ........... ..............
...1
20.001 50.000........................... ............... ......_::............. -......................... ......................-....................
2
50.0 01 100.00 0....._...................................... .....................»..................................-. ....................
.........3
100,001 250,000 ............................................ ............ ......__.................................................. .............
4
250,001 • 500.000..................................... ................. ..-............................................. .........................
.5
500,001 - 1.000,000..................................... ...............................................................................--..........8
1,000,001 . 2,000.000............................................... ......... ................... ..............................................
1 0
2,000,001 (and up) rase 1 point additional for each 200,000 gpd capacity up to,a
maximumor........................................................................3 0
Design Flow (gpd)
(3)
PRELIMWARYUNRS!?ROCESSES(ssadefinition Wo.32)
(a)
Bar Screerrs................................................................................................................,1
(b)
Mechankaf Screens, Stalic Screens or Comminuting Devicas.................................. ........................................
(c)
Gril Rarrx7val.............................................................
.........
or
{ d)
Mechanical or Aerated Grit Reni....................................... ....................................... ......... :........
.:......... 2
(e)
FbwMeasrringDevice .................................... —_. ....................__•_.__...................... ......-,,..-..................
...........1
Of
[O
Instrumented Flow Measurement .................................... .................................. ...................... ...........
....... 2
ig)
Preaeralion........................................................... ....... -.......... ................................................................
(hj
InfluerllFlow Equalizalian....................................... .............. _........................ ............................. .............
(IJ
Grease or Oil Separators - Gravity ......................... --_......... _................... .......................... __.............
...-,2
Machuicai......1........1.......................... ............... ..... ......................... ...___.................................3
DissolvedAir Flotation...........................................................................................................
..........8
tl}
Prechionnalion ............. .................................................. ....... ... .................. ................ ............ ,................
5
(4)
PR,MARYTAEATMENT GNfTSrPROCESSES
(a)
Septic Tank (see delinilion No. 45)................... ...... ,.... ... ................................................... ........ ............
(b)
Imhoff Tank ....... .............. .......................................... ........................ .............. ..............................
......... ...5
(c)
Primary Clarnisrs............................ ............ .................... -...... ._................... _............ ............... .................
5
(d)
Settling Ponds or Settling Tanks jor Inorganic Non -toxic Matanats (sludge handling laci2ies for
walal punlicaticn plants, sand, geaval, stone, and ar:rer mining operations except recreational
ad'tvh;es such as gem or gold mining) .................................. _-... -...................................................
........ 2
(5)
SECONDARY TR ATI..r, ,11'Ul FS?ROCESSES
(a)
Carbonaceous Slags
(i) Aerallort-High Purity Oxygen Sys;ok.---...........................:...........................,...........
.,.....20
DiBusadAir System....................._.......__.�...............................:.........................10
..
Mechani0ai Air System (fixed, ftaatirg or lator)............................ ......................................
8
Separate Sludge Reaeration.............................................................................................3
(li) Trickling Filter
HighRate ...... ............... _........... ......................................................... ............................
7
StandardRaw.,..............................__......-_..........................._.....................................5
Packed Tower ............................. .............. ........ ........... ......... ....... .................. ..........._.5
(itiJ Biological Aerated Filter or Aerated
Siologi-M Rher....--•---.__ .................... __..,...................... ...... ...........................
1 0
AeratedLagoons ... ..... !_....... __.................. _................................ ................... ...,.,.....10
(v) Rotating Biological fonlactors............. ........ ......... _....................................................
10
W) Sand Filters -Intermittent biolog:cal.............. _...... _......................... .......... ....................... 2
Recirculatingbiological ........................ ............................... .....................................
....... 3
(vii) Stabilization Lagoons..................................._..........................-_....._.............................5
(iz) Single stage system for combined carbonaceous removal of 500 anti nitrogenous
remova) by nilrification (see delirno❑ No. 12}(Points for this hem have to be in
add"ion to Items (5)(a)(i) through (5)(a)(viii),
utiliting She axiended aeration process (see da'iniiion No.3a)...........................................2
utilizing other than the extended aeration process ... .............. ................... .......... ............
..B
(x) Nuirieriladditions to enhance BOJremoval.... .................................................................5
(xi) Biological Cuilure (-Super Bugs"adds:ion................. ........................................................5
(b)
Nitrogenous Stage
(i) Aeration - High Purity Oxygen Sys'ern..................................................................,.,..,....,20
DihusedAir Syslem........... ............................................................... ....... .......... ......,.....
1 0
Mechanical Air System (fixed. I}Gating or'rotor]-..-._.......
Separate Sludge Reaeration__... -....... -----.... _.................................................................3
(ii) Tric}.ling Filler -High Rale............................•---........................................................,..........7
StandardRate ......................... ...............•................ ...................................
,........ 5
Packed Tower ..................._......................................... ......... .......,..........
............5
Biological Aeralad Pillar or Aerated 6'2togical filter ..................__.-.._ _...-..-.-..,..._-.,
......,.1 p.
(IV) Rotating Biological Contactors,.-................................,................,.....,....................,....I
O
(v) Sand Filler- inlarmillent bic€ogice.............. ............. ........... ,........ .....................
_....._-_2
Recirculating biological,. ........................ ­ .......... .................. ­ ..................... .
.3
(VI) claffor........ .......... ......__....... .... ........ ......... .................. ........ ........... .............. _.-„
..-.....5
(5)
TEAT ARYORADvl.':CEDTREAT?.Ia4TLNrTSr?xJCESSES
(a)
Activated Carbon Beds -
wi'houl carbon roganeralion ............. ..................................................................
---...... 5
with carbon regeneration,. .- '­ .......... .... .. I ...... . ............................ I .......................
.... 5
1 b I
Powdered or Granular Actuated Carbon Fead-
wi,houl carbon eegenera;ion................ ........ .............. __.... .........._...............
with carbon regencralion..._........................................................................................1
5
(c)
if s.npp!. 9............................................ ........... ...................... .......---...
.....5
(d)
n',.a,:on Provos:.. ............
. ......1 0

(a)
Electrodialysis............................................................................................................................................5
(f)
Foam Separation .................................. .............. ......................................................................... I........I.....
5
( g )
Ion Exchange.............................................................................................................................................
(h)
Land Application of Treated Effluent (see delinislon No. 22b) (not applicabta lot cai
graval, stone and *that similar mining oparalions) by high rate Infiltration......................................................A
(1)
Microscreens..............................................................................................................................................6
O)
Phosphorous Removal by biological Processes (See definition No. 21.........:.............................................20
(k)
Polishing Ponds - without aerallon.............................................................................................................2
with asration...............................................................................................6
(1)
Post Aeration - cascade...........................................................:.................................................................A
diliused or mecharlical.........................................................................................2
(m)
Reverse Osmosis........................................................................................................................................5
(n)
Sand or Mixed -Media Flhers • low rate..........................................................................................................2
highrate ................................................. I... I................5
(o)
Treatment processes for removal of metal or cyanide...................................................................................1
5
(p)
trealmenl processes [or removal of toxic materials other than metal or cyanide..............................................15
(7)
SWDGETFDTMEKT
(a)
Sludge Digestion Tank - Healed................................................................................................................10
Aerobic 5 ,
-
Unhealed 3
(b)
Sludge Stabilization (chemical or thermal)...................................................................................................5
(c)
Sludge Drying Bads - Gravity.....................................................................................................................2
VacuumAssisled......................................................................................................................................5
(d)
Sludge Eiutriation.....................................................................................................................................4
(a)
Sludge Conditioner (chemical or lharmal)........................................................... .........................................
S
(i)
Sludge Thickener (gravity).........................................................................................................................4
(g)
Dissolved Air Flotation Unit (nol applicable to a unit rated as(3)(i))............................................................Is
(h)
Sludge Gas ULIllzation (including gas storage).............................................................................................2
(1)
Sludge Holding Tank - Aerated...................................................................................................................5
Hon} ae raled.............................................................................................................................................
2
O)
Sludge Incinerator (nol Including activated carbon regeneration)................................................................1
0
{k�
vacuum Fher. Centriluge, or Filter Press or other similar ciewalaring devices...................................................1
0
(6)
RESIDUALS UTILIZATIONlDISPOSAL (including incinaraled ash)
(a)
Lagoons ......... ................................................................................................ I—— ................. .... ...........2
(b)
Land Applicalion (surlace and cubsurlace) (sas defintion 22a)
by contracting to a land application operator or landfill operator who holds the land
applicalion permit or landfill permit ..............................................................................................................2
(c)
Dedicated Landlllf(bvdal) by the permitteo of the waslawaler trealmant facility ...............................................
5
(S)
DIStFEC-70;
(a)
Chlorination.-.... ..................... ....................... ............ .................. I ..............
(b)
Dechlorinauon........................... ............................................................................... .................................
(c)
Ozone.....................................................................................................................................................5
(d)
Radiation.................................................................................................................................................5
(10)
CHEMICALADDiTION SYSTEMS} ( see definition No, 9) (not applicable to chemical addi6ora rated as Item
(3)(1), (5)(4,,d), (6)(a}, (6)(b), (7)(b). (7)(e), (9a), (9)(b) or (9)(c) 5 points each:
................................................................................................. ...... I ................
5
.......................................................... _...............,........, , ........................I..................
-5
....................................................................................................................
5
MUSCELLAN LIS Uir TSrPPMESSES
(a)
F!oidinp Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials including wastes
born mining operations containing niirogen or phosphorus compounds in amounts sig-ificanlly
greater than Is common for domestic waslewater.........................................................................................4
{b)
E,"iuent Flow Equalization (not applicable to storage basins which are Inherent in land arplicaiion
systems) ................ .......... ..... -... ............... ............. -._..................... .....-......
(c)
STage Discharge (nos applicable to storage basins inhererz in land applicalion sysli..................................5
(d)
Frumps ....................... ........................... %.. ii
3
e
S:and-By Power Supply
(1)
Thermal Pollution Control Device................................................................................................................3
TOTA` POINTS..........................................................................
CLASSIFICATO'4
class1................................. ......... ...................... :............. :............................ 6-25 Points
C1255lt................................... ....................... ............. ........ :....................... 26-50 Poinls-
CossIR _..........-'.................................................. ........ .......... .................. 51-65 F-rints
:ZssN............... ..................... ....................................................... I ........... 66-Up Points
facilities having a raiing c! or* thrc>r'1 four points, Inclusive• do not requiia a canillad epoealor.
Fscil;Lies hit in^y an acliva:ed sludge p-wass wiS!be assigned a minimum ctassificaSo-ot Class 11.
Facilhies having ltea Imenit Processes Iv this removal of metal or cyanirle will ba assigned a minimum-clusilicalion of Ctass'II_
Facc.ues having Iraiffini proC955as I:- ;he biological re:-a':al e! phosphorus wiP be assigned a minim�.m clessilication oil Class i
*??+ DEFit4:7ioKs
lr4 Gftrrvcons shall apply IhIDLSS`a-- [t•is Subc}saptfr
(tI Aceva:fd C.r5— 0.4s A physic elk r' -! rn i it r.b„eTny SC1,41e Lsr1.6C maaa:iai li waslawa rot als�p^.L. MI[ ro?ter; r,. typs tads ccf: in E'-is Mon- ,vih havf
a 1.� roll ,-xrrir hom rwo to fight ginDn per rrirhA, pe: sQ=.'e lca and ay N alshv s;pxo.•, a do —to.. Cart— i Garton may or, rat r.^: b. ragensr i on M
,.aLewalat vfacnan•, plant sire:
l2i Aerated l,agocns A basin in which ail wilds are mriWainad in suspantion aM by whch a'afogicA; mT4e6on lx nyani[ matter is redlred v,: erg` aniticially scca!t•-elid
Iranslei of c.ygpn on a Ilow-thovgh basis
lyt F.etation A p'o_ess of br;ngi;ag Abotx T:mata contort balweri . r or rigl punt) o[ygr, In A 1*1d by ayxyri agtaliai 41 di"Wr ivn;i3a'i ca•ndad Aeration M
a: evatee si„dgw process tenting a nirirmryd-auic 60%,1 c,- .—e o! tE hcss.
fey A^,ncl+',',ialiy ..,.aged site, My Pis -,.high a crop is P'a_xad. managed_ and harass➢ed (Crop Includes gasses, Stains, tea[, sic.),
(5; AI• A process by which of s^noniurn ion is Rrs! co-r+s ad fo dssowd armor.;a (pH agUstmrr) r i, -e arrrnara 1wr 1e1[a seC yc M a"o[phw+e br
'fly}Sa'. fiK ail; [✓ ar's, si rfi lal pry-aiS ai w'lCh raRgYa peCh'PT proQKtts [tY.h is bans, ?. lo;U Ie, and [YIa e.
lr: Ca: ho Fsgere a: or, Te raganwai.0-aahauslad carbcn br nr stiff a; a Innate to }vm'loe c.uamMr high Lt npa•afves wh'N, vo.'at; n :-, o,. iyi CA "wiled
r1' sr-e!cays Saga A slags of ,,an .tst teatmen� da s';-.sd tc acaifvs -secondar)` Nhdo"d 4. is: '
A r,4crl4ni:.. 0;vica in w:K4 can;rilvgja'. iwcs i[ 45e: 1 S�a'af@ [P'd5 f'o� 1.0i o' 10 seas+alF [Gu'C3, 01 ':;1:Wen1 dBrl5 ila3 _
rS. Cii Sysl* -Is- Tho aodii-c! Cr,ar`.II[allsi ID a', a i�4 '[Aflp-I r� •I. Ic+ •PJposes 0: SOiv; rs,rno,'a:. Ph a_� :�'1:. allral"af CM1_,
r �'l: Ci�eC•':• 'D el;lo.- ni w;C. 'i eM'rT.G als And 0:4. -,: aPo;'c.t. ,r•"i iD a:h.e�e a Apt-M.: rel++t­9 t D considerli 0-^_ 1, 3'r i,M capj:-N.i 10 a00

cJhan'c►I(s) 10 dual urils wUl be rased or one cyst►m; capability to add a charrica' ■( ■ 64werht application points lot different purposes w+ll rosLel In the syslarns being
rated as separala syslems;
(to) Cherrkcal siudga Conditioning. The addition of a 0-Frical compoLre wch as time, Ionic chloride, or a polymor to wet sludge to coalesco t"o miss prior to its
■pptication 10 a d.weiaring dayscv; -
(11) Closed Cycle Systems. Use of holding ponds or holding larm kc for co-dainanl of wastowatw contalring Inotgtric, non'toylc materials porn send, gr'avDE, crushed
sloe or other similar opef,"ns.. Such systems shall carry a m z'Lrr am of two points regardless of purnpirrg lecilitias or any othw apwrtDrvrros;
(12) CornC;ned Removal of carbonaceous BOO and Nitrogenous Rorinoval by Nitrification- A singlo sliga system rvoiDd to achieve pormif altluonl lirr'ila on BOD and
amrrsonla rjuvgg n vRthrn shs6 sam,a biotogicat rosclor;
(13) De-cHorirsatlon, The partial Of corrplalo toduac5ion of rt&ldoei chlorine In a liquid by any cfhetricat or physical process;
{4i} Doritrificsfion Process. The cornasio_rt of nitrato•nitrogon to ritrogan gas; _
{l5) Efectioddalys& P:ocsss fur remafing lonlzad sills Irorn water though the use of lorrselactive lorrexchango membrarros;
(l6) Filter Press. A process op eratad nwcfsaricany ior'pestiaily dewatering sludga;
(17) Foam Sepatabon. The Pltry)ad hotting of wastewater a wovewalw 6mverd as a rrwira o1 aemaving excessive amounts of delafgent materials through lira
tntobucLion of ail In the loran of fina bsbbtas; also called €osm fractionation;
(t8) Grit Rornoval. The process of forrwinwr g grit end oltheavy rrnwa) mat1M kom wastewater;
(19) Irnholt Tank. A deep two story wastewater tank consisting of an Lipper stdim rtUlion ehembsr and a lower sludge digestion chembar.
(20) Irnlnrrnort W Flaw I. g'—`rmonL A device which Indcates and roccrds fall at how;
(21) Ion Exchange. A chertycal process In which Ions from two dilerent mofocJos are exchanged;
(22) Lxnd.appf€cation:
(a) Sludge Disposal. A final sludge disposal method by which wet sludge may be applied to land either by spraying on Vxe surface or by sLsrbsurlace Ir{ection (i.e.,
chisel plow); (rot applicable lot Types of studgo described In (11) or this RJoj:
(b) Treated Effivent. Trw process of spraying troaled waslawater onto a land also or cthar methods of application of wastewttef onto a land area as a moans of fnai
disposal & bialment:
(23) Microscre on.
A low speed, contrruvusly back•washred, foisting drum filter Operating uider yareity condlioras as a porishi g mothhod for ramrrvinq wsi>ardad solids
from effluent:
(24) Ktrificafon Process. The biochemical conversion of vnosidzed rilrogen (amrnonla and organic ritrogon) to oxidized ritogon (usually nitrate);
(25) Nitroge thous Stage. A separate stage of wastowov trestmernl des;grred for it* a.pacific purposs or convarting ammoria Hrogon 10 nitrate -nitrogen;
(26) Phosphate Ramovaf. Bological, The removal of phosphorus €ran wastawalor by an osichnoxic process designed to wshanca ImCry uptake of phosphors by €he
microorganisms'
(27) Pd,14 ng Pond. A holding pond following secondary trsalmant with WAcisrd detention lime to allow setting of finoly suspended solids;
(2s) Post Aerafort, Awation follovr,ng conrantior»! sacorldary treaiment urns to InerotsA orlluenl D.U. or for any other purpose;
(2s) Post Aefaiion. (Cascade) A pdisteng method by whch distoNad oxygen Is added to the offiuord by a ncrawcharics), gravity rnaaru of licy6ng down Is %cries of
steps or weirs; The how WCruing sctoss t* steps or weirs moves In a fairly thin layer and the operation of the cascade recpsiss ne opwala adjustrnont; thus, zorc
points are assi goad oven thovgh Itis Is an ■ssantial step to r ling the lirrits of Liao discharge permit;
(3o) Powdered to GianUir Aclivaltd,Csrbah Foad. A biophysical carbon process Vsat VCIizes biological activity and otganit absorption by using powdered or ganilar
activated carbon_ Virgin or regeneratsd carbon is food contiollod Into tha sysi6,m;
(31) Praaerailan. A. lank construrctad to provide aeration prior 10 Primary traaVfa9 cal;
(32) Proliminary Urns. Unit opera Eons in Lhe treatrent process, such is scrooning and corrynirution, lhal prepare 11w liquor for subsoquen: mafor oparatioru:
(33) IndLritrlat P1str6a!merr.
(a) Pre-Leamment Uri:, industrial. Tho condlioring of a waste at its source Wore discharge, to r6movo or to noutraliae subslancas in;uious to sewers and trsatmonl
processes or to otloct a partial red•clion In load on no treatment process whch Is operated by tw same governing body as the wastawalet teatrnent-plans being
rated;
b) Pre-treatrrreni Program, Indusinal • must be a Stale or EPA regiifad prog am to receive paints on the rating sheet;
(34) Primary CAarliws. The first ser,Grg larks Ihough v'ich wastewatw Is passed In a treatmerr, works for the purpose of removing sel9oabl6 and suspended solids and
DOD which Is associated vAth the sdids;
(35) Prrnps. All In Avon., otAueni and IrrplAni pumps; -.
(36) Aldl6ort. DiOnlsction err slwiiization process utilizi;acr device; emitrng ultrayiaheE or gamma rays;
(37) RcsQFse Osmosis, A ueatmen! process in which a h'savy contarrinalad 1igdd is pressurized Pvaugh a membrane Jorming nearly pure liquid free from suspended sdids;
(39) Routing Biological Contractors- A tried biological gcwth process in which wastewater flows through hanks in whhich a series of par5aliy subrrwgad circUlf surlaces
aro rolafed;
(39) Sand Rills!
(a) In1wnritlerri Biological. Fitts Con 01 QPILaent IDllowr'g septic iris, lagoons of some at'hw lreaintew process in whch iu-Cher Nodecomposiiion is especlO to
pfoticace deslrod altluenls: Hydraulic Icadng rates or, . eso f,Itafs fro conpv:ed In gpdrac aid have a roulting low 92mrsl {lair than orw);
b) Racirccsating Naloglcal - the same type of sand filar as esefined in Subparagraph (39) (a) of this RLYs with V-,a added eapatsiFity to recycle elllvonl back Pywgh the
sand liller:
(40) Sand or fixed P66h Flues. A pc€ishttng process by which eltuaenl limis La acHoysd rvo Wig a ki-thw reriucben at suspended sNidS:
(a) low rile g-avly, hydraulically loa Gad filter wish }ca6,ng tales In the one la t1190 gperdsl fangs;
(b) high rate -- a prassLxe, hydravlicaliy loaded fi€ter r%ih loading ralos In the five gprrVsl range; At any tale, the loading rate vdl1 exceed area gpmIsf;
(At) Secondary Oiari+iers. A uric which follows ttha biological whit at treatment pram; end whch has Pe purpose of fomoving sludges associated wiCl the biological
treatment units; y 1
(42) Soparafe Sludge Realfation. A part of the contact stabilization pfocoss wr-rD fhe activpl,d sludge is transferred to a Lank and 26:alod before iotrxring i; to the
cont.0 basin;
(<3) Septic Tarr-. A single story whiling lank In which s6tiled sludge Is in conlad wilh tore wastewater llowirsg through the lank.; shall no, ba applicable for sapl'rc tank
systems serving single terrify residences having capacity at 2,1)00 gallons or less which discharge to a rilrkalion field;
(4-4) Sludge Digestion. The ptacess by which orgaric or vofasile matter and (hugs Is gasified, liquefiod, rrinorafiasd or converted inic mat stable organic manat ryoup,
;he xctiyity of Jiving wgarisms, which includes aaaled hording tanks;
(•.5) Sludge Dry;: g $ads. An area cvrprislrhg natural or ariificfal layers of porous malariafs Upon which digesled sewage sludge is skied by drainage and ova pa sties;
(a6) S:uadgo Elut'ialion. A prows= of sJLldge corditioring in which certain con4stuenls are r6moved by successive washings With trash water or plant effluent;
(47) Sludge Gas UElilafron, The process of using sewage gas lot the purpose a! heating buildings. driving onggnes, oic,;
(a8) Sludge Ho'dirg Tank {Aerated and Norsaeraled)' A ;a+'•Y.-v0"liiod for small wastewalor-Vkatmertt plants not canuiring a d9oster in a:;ich sludge may be lap; hesh.-
and ,pernaUnI svilhfl'awa prior Ir a drying rrathod (i.e- fudge drying beds): This ma)' be dory by adding a small amounl of air simply to keep tie sludgo fresh, but no`
nocossaoi y an'amoLri; nai wcid be required to achieve stabiiizafioo of orgiric matter. A nonaeraled larA woJd simply be used to decant sludge prior to de waling and
wound not allow ions poriw's (savaral days of dalention) s•r:hhout rssUlir,^ odor problemrs;
(49) Sludga Incineralas, A tanace dasigrwd to bvm sludge and to iemvry Ail mcistua and combus4Ne materials and reduce rho sludgo io a slorile ash;
(50) Sludgs SLabilaz4o; (Chcrricel a ThArmal)_ A process to make treated sludge less odorous and putrescibte, and to reduce G-, paitr?genrc orgarism cmn xfns; This may
bba done by pH tGus"m n!, cNorine dosing. or by heat tealmenl:
(51) Sludge Thickener. A type of sodin�ntation Lank In =hicha il-ae sILaC'iie is per.rilled to sar,le aria llicken Pyoua agila Con ant Oravirf,
(52) Slaralizalion Lagoon. A type of oxidation lagoon in n'sch bfologic;l oxidation o1 organic matter is eltecled by natural tr-ansler of nxyg6n to the water ifom ail (not a -
PrD ishing pond):
(53) Sland-By Paver Supply, On sale v portable etuCLitat generatng &qt=pnrr :
(5A) Slatic Screens. A sta!ionary screen dosighed io rF--eve solids, inciudrg ran.biodegadahhe parl'rcaf le (Aoatzi+.'e solids, susper.Ged solids and BOO ruducki .) from
nisn Cipal xnd industrial waslPrvauFr L•eaVnenl sys;e sa
($5) Tertiary Tsaa:n:a t A zrago o! vealmenl lorlo,ving secondary which is pimuily Ic Cho pvpose of ei€iuunl p.'ish'ryg; A sorting lagoon or sand a ace! 1111V M'Ohl Cri
emp:oyod for this purposo:
(56) Thermal Poi,rron Cosiilel Davie D. A GavlCe providing for the transfor of boat ham d f.Vid !lowing In Iubres to another Arid oAs:Cv tie lobos, 6r vice v61sa; G• Alb£:
means at feghiatirg Fcpid tempera lira:;
(57) Thermx! Slueoo Corsdtionor. A cendtionirrg process lay which heat is adder for a protracted period of time to kMpfove tie dowalsrabil;ty of sludge by tho so-vbitizin;
and hyd,2J;jtirrg o' She smallol and more NgNy hrdaled sludge particles;
(5C)'Toxic )Aalorials. Those washes or combinatons of -riles, inrlLadirg tl+s2aha cauSiM ag-?nts which altar dscharge and upon orpa,,u•v, iNestion, inhhalaioc . ul'
essimlation info any organism, either diracdy kPin tan. s: ,irormonh or indiei[), by tngest'ion trvoup land chains. Kiln crausu deal'•. Picric, behavipral a; Ofmzlw.es,
can_or. golo5c MV s:iazs. plhysiaogca! rnalfo,<6ons (;nc ctng Malrvrv_Oons in reprodhr So n) w physical dololmabc s. In such organsms or Their o(isp,iirng: Toxk rnataoats
inclvdo, L•)' way o: illusiratton and rnl linir sti Dr'.: lead, ca.dnurn, chromium, ma curt', vans Aum, of se rig, 2inc cvoe Uc-[liorobon;Ora lv1JC8), poiychlorihaled Gphran vie
(FCCas) and (DDT); and any odhor maW;als that havo a may haroakor be dalerm:-.0 la have lo,ic pc-prc:Los:
(59) 16cl,.'rnr, ur.'1 cansis.ry a! P. malonaf such as L of:en s:ona or ioc'r. ever avihich nas,o Alcl is dsciiraod: ` hvglh -,:o Irickiing l:;;a: is er.1
-hch op Gr stud a; t,hrvonn 10 a.hc. :r7 mcc! Qr. a:re. F iC' ralo LicfJir, 11UG1 is orris -Ikc) is e0signod to ooraly aI ors.. Is four r+,d prr, aura:
(G?) Trig sarng 6il:ar (Pac'aed To,--ur) fr,, ;i^c c' or—atic,� in w'-;ch s+z s;ewalbr ;I,_hs 00— t:vo.:gh su<C' 55;vo torpors of moot Cr I+!—w ma:efiol: Go.nc melr:nr
is nno-sved conar>u-:I) by Nti br'~nical trod r:p—:; in oath ma)p'odw, secrftC.h ry" Gu;,:1 n",rv+' Cr -y bo tCa, I?c to
p:oU.+cc a rti L•l ire^ c!:Ivo: h: -
:! L'zcs...:h Ca r:•�,n•-'c, t: �u lvr Pr(':e^-s Ot. '2. vaicn ?'o e-jug—, .= non.::v rh:s v:a::;r Iront of:-,•::dc0;.raid c: a - ..,.duo prier to dsc.:rl 0.