WQ0006415_Final Permit_19940830

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
August 30, 1994
Mr. Rodney M. Tart, Director
Harnett County Department of Public Utilities
Post Office Box 1119
Lillington, North Carolina 27546
Dear Mr. Tart:
4
QFEHNF-4
Subject: Permit No. WQ0006415
Harnett Co. Department of Public Utilities
Surface Disposal of Wastewater Residuals
Harnett County
In accordance with your application received on January 5, 1994, we are forwarding herewith
Permit No. WQ0006415, dated August 30, 1994, t6 Harnett County Department of Public Utilities for the
continued operation of an active sewage sludge unit for the purpose of the disposal of wastewater
residuals.
Please be advised of Condition VI 9 which states that, "The Permittee, at least six (6) months prior
to the expiration of this permit shall submit a permit modification request to the Division to include the
option for land application of the residuals included in this permit."
This permit shall void Permit No. WQ0006415 issued September 4, 1992 and shall be effective
from the date of issuance until July 31, 1996, and shall be subject to the conditions and limitations as
specified therein.. Please pay particular attention to the monitoring and reporting requirements contained in
this permit. Failure to establish an adequate system for collecting and maintaining the required operational
information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North
Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447,
Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding.
If you need additional information concerning this matter, please contact Ms. Angela Y. Griffin at
[phone].
Sincerely, , n
l' .7i�L4
A. Pres n Howard, Jr., P.E.
cc: Harnett County Health Department
Fayetteville Regional Office, Water Quality Section
Fayetteville Regional Office, Groundwater Section
Jack Floyd, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 60% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
SURFACE DISPOSAL 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
Harnett County Department of Public Utilities
Harnett County
FOR THE
continued operation of a active sewage sludge unit consisting of a 5,000 ft3 Hypolon lined sludge holding
basin for the disposal of approximately 240 dry tons per year of residuals from the Buies Creek -Coats
Water and Sewer District wastewater treatment facility with no discharge of wastes to the surface waters,
pursuant to the application received on January 5, 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 void Permit No. WQ0006415 issued September 4, 1992 and shall be effective
from the date of issuance until July 31, 1996, and shall be subject to the following specified conditions
and limitations:
I. PERFORMANCE STANDARDS
1. The sewage sludge unit shall be effectively maintained and operated as a non -discharge
system to prevent the discharge of any wastes resulting from the operation of this program.
2. The issuance of this permit shall not relieve the Permittee of the responsibility for damages
to surface or groundwaters resulting from the operation of this program.
3. In the event that the sewage sludge unit is not operated satisfactorily, including the creation
of nuisance conditions, the Permittee shall cease disposing of the wastewater residuals to
the sewage sludge unit and take any immediate corrective actions as may be required by the
Division.
4. The following buffer zones shall be maintained:
a. 400 feet from any habitable residence,
b. 100 feet between the active sewage sludge unit and any public or private water supply
source, all streams classified as WS or B, waters classified as SA or SB and any Class
I or Class II impounded reservoir used as a source of drinking water,
c. 100 feet between the active sewage sludge unit and any stream, lake, river, or natural
drainage way,

d. 100 feet between the active sewage sludge unit and property lines; however, this
requirement may be reduced to 50 feet upon written concurrence from the adjoining
property owners, revised maps delineating updated acreage, and a formal permit
modification request submitted to the Division,
e. 10 feet between the active sewage sludge unit and any interceptor drains or surface
water diversions (upslope),
f. 25 feet between the active sewage sludge unit and any interceptor drains or surface
water diversions (downslope),
g. 25 feet between the active sewage sludge unit and any groundwater lowering and
surface drainage ditches.
Some of the buffers specified above may not have been included in previous permits for
this sewage sludge unit. These buffers are not intended to prohibit or prevent
modifications, which are required by the Division, to improve performance of the existing
treatment facility. These buffers do, however, apply to modifications of the surface
disposal site. These buffers do apply to any expansion or modification of the spray
irrigation areas and apply in instances in which the sale of property would cause any of the
buffers now complied with, for the treatment and disposal facilities, to be violated. The
applicant is advised that any modifications to the existing facilities will require a permit
modification.
5. A copy of this permit shall be maintained at the sewage sludge site when residuals are being
disposed during the life of this permit. A spill prevention and control plan shall be
maintained in all residuals transport and application vehicles.
6. When wastewater residuals are disposed in a sewage sludge unit, the Class A pathogen
requirements in 40 CFR Part 503.32(a) or the Class B pathogen requirements in 40 CFR
Part 503.32(b) and one of vector attraction reduction requirements in 40 CFR Part 503.33
must be met. Additionally, an evaluation must be performed which demonstrates the
residuals ability to comply with this requirement. Upon request, a copy of this evaluation
must be submitted including all test results and calculations.
II. OPERATION AND MAINTENANCE REQUIREMENTS
l . The facilities and application sites shall be properly maintained and operated at all times.
2. No residuals other than the following are hereby approved for disposal in the sewage
sludge units in accordance with this permit:
Permit Estimated
Source County Number Volume d ton
Buies Creek -Coats Harnett NCO030091 240
Water and Sewer District WWTP
3. The pollutant concentrations in the residuals which will be disposed in sewage sludge unit
shall not exceed the following Ceiling Concentrations (Dry Weight Basis):
Parameters m /k
Arsenic 73
Chromium 600
Nickel 420
2

4. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified operator to be in responsible charge (ORC) of the active sewage sludge
unit. The operator must hold a certificate of the type classification assigned to the sewage
sludge unit by the Certification Commission. The Permittee must also employ a certified
back-up operator of the appropriate type to comply with the conditions of Title 15A NCAC
8A, .0202.
5. Adequate procedures shall be provided to prevent surface runoff from carrying any
disposed or stored residuals into any surface waters.
6. An active sewage sludge unit shall not restrict the flow of a base flood.
7. An active sewage sludge unit shall not be located in an unstable area
8. Appropriate measures must be taken to control public access to the surface disposal site
during active site use and for the 36-months following closure of the sewage sludge unit.
Such controls may include the posting of signs indicating the activities being conducted at
each site.
9. Adequate provisions shall be taken to prevent wind erosion and surface runoff from
conveying pollutants from the surface disposal site onto the adjacent property or into any
surface waters.
10. Residuals shall not be disposed of in a site that is flooded, frozen or snow-covered.
11. Food crops, feed crops and fiber crops shall not be grown on an active sewage sludge unit,
unless approval has been requested and received from the Division of Environmental
Management.
12. Animals shall not be grazed on an active sewage sludge unit unless approval has been
requested and received from the Division of Environmental Management.
III. MONITORING AND REPORTING REQUIREMENTS
1. Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue
analyses) deemed necessary by the Division of Environmental Management to insure
protection of the environment will be established and an acceptable sampling and reporting
schedule shall be followed.
2. Proper records shall be maintained by the Permittee tracking all disposal activities. These
records shall include, but are not necessarily limited to the following information:
a) source of residuals
b) volume of residuals disposed in gallons/year, dry tons/year, or kilograms/year
3. A residuals analysis will be conducted annually from the date of permit issuance by the
Permittee and the results maintained on file by the Permittee for a minimum of five years.
If disposal occurs at a frequency less than annually, a residuals analysis will be required for
each instance of disposal.
The residuals analysis shall include but is not necessarily limited to the following
parameters:
Arsenic
Aluminum
Cadmium
Ammonia -Nitrogen
Chromium
Calcium
Copper
Nitrate -Nitrite Nitrogen
3

Lead
% Total Solids
Mercury
pH
Molybdenum
Phosphorus
Nickel
Plant Available Nitrogen (by calculation)
Selenium
Potassium
Zinc
Sodium
Magnesium
TKN
After the residuals have been monitored for two years at the above frequency, the Permittee
may submit a request to the Division for a permit modification for the reduction of the
frequency of monitoring for pollutant concentrations and for the pathogen density
requirements, but in no case shall the frequency of monitoring be less than once per year
when residuals are applied to the land,
4. All residuals included in this permit must be monitored annually, from the date of permit
issuance, for compliance with condition 16 of this permit. Data to verify stabilization and
vector attraction reduction of the residuals must be maintained by the Permittee. The
required data is specific to the stabilization process utilized, but should be sufficient to
clearly demonstrate compliance the Class A pathogen requirements in 40 CFR Part
503.32(a) or with the Class B pathogen requirements and site restrictions in 40 CFR Part
503.32(b). In addition, the EPA certification statements concerning compliance with
pathogen requirements, vector attraction reduction requirements and management practices
must be completed annually by lbe proper authority or authorities if more than one is
involved, either the person who prepares the residuals, the person who derives the
material, or the person who applies the residuals.
After the residuals have been monitored for two years at the above frequency, the Permittee
may request a permit modification for the reduction of the frequency of monitoring for
pollutant concentrations and for the pathogen density requirements, but in no case shall the
frequency of monitoring be less than once per year when residuals are applied to the land.
5. Three copies of all required monitoring and reporting requirements as specified in
conditions III 1, III 2, III 3, and III 4, shall be submitted annually on or before March 1 of
the following year to the following address:
NC Division of Environmental Management
Water Quality Section
Facility Assessment Unit
PO Box 29535
Raleigh, NC 27626-0535
6. Noncompliance Notification:
The Permittee shall report by telephone to the Fayetteville 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 with the surface disposal program which results in the disposal of
significant amounts of wastes which are abnormal in quantity or characteristic.
b. Any failure of the surface disposal program resulting in a release of material to
receiving waters.
c. Any time that self -monitoring information indicates that the facility has gone out of
compliance with the conditions and limitations of this permit or the parameters on
which the system: was designed.
4

d. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate residual treatment.
e. Any spillage or discharge from a vehicle or piping system transporting residuals to the
disposal site.
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.
IV, GROUNDWATER REQUIREMENTS
1. 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, 1983 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 Permittee.
2. Any groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
V . INSPECTIONS
The Permittee or his designee shall 'inspect the residuals storage, transport, and disposal
facilities to prevent malfunctions and deterioration, operator errors and discharges which
may cause or lead to the release of wastes to the environment, a threat to human health, or a
nuisance. The Permittee shall maintain an inspection log or summary including at least the
date and time of inspection, observations made, and any maintenance, repairs, or corrective
actions taken by the Permittee. This log of inspections shall be maintained by the Permittee
for a period of five years from the date of the inspection and shall be made available to the
Division of Environmental Management or other permitting authority, upon request.
2. Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the surface 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 kept under the terms and conditions of this permit; and may obtain
samples of groundwater, surface water, or leachate.
VI. GENERAL CONDITIONS
This permit shall become voidable unless the surface disposal activities are carried out in
accordance with the conditions of this permit, the supporting materials, and in the manner
approved by this Division.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.

3. This permit is not automatically transferable. In the event that there is a desire for the
facilities to change ownership or a name change of the Permittee, a formal permit request
must be submitted to the Division of Environmental Management accompanied by an
application fee, documentation from the parties involved, and other supporting materials as
may be appropriate. The approval of this request will be considered on its merits and may
or may not be approved.
4. Failure to abide by the conditions and limitations contained in this permit may subject the
Permittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c).
5. The annual administering and compliance fee must be paid by the Permittee within thirty
(30) days after being billed by the.Division. Failure to pay the fee accordingly may cause
the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205
(c)(4).
6. The issuance of this permit does not preclude the Permittee from complying with any and
all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
7. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its
extension. Upon receipt of the request, the Commission will review the adequacy of the
facilities described therein, and if warranted, will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
8. This permit may be modified, or revoked and reissued to incorporate any conditions,
limitations and monitoring requirements the Division of Environmental Management deems
necessary in order to adequately protect the environment and public health.
9. The Permittee, at least six (6) months prior to the expiration of this permit shall submit a
permit modification request to the Division to include the option for land application of the
residuals included in this permit.
Permit issued this the 30th day of August, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Preston ward, Jr., P.E. Director
Division of avironmental Management
By Authority of the Environmental Management Commission
Permit No. WQ0006415
C

�`!' I - �� �/ , { . f, !-f •�' ' � „ I v� l i ' r ~ I %\C/ ! , n �--'_ �J i� �x _ i
}, 1 ,5�, �' / , '!/r/ r ..5. r i �t, w, 1 ^ r , - •I ar �c,�' S,L
'I
/ ' ! 51 ! .'.�, ' � r / f,J r r "11�.�I � „� l ^�\ _ • • /� ! 1 , _ n� n� r �r I'' -:ter 'l
J f r ,} 1 �w,•• I , � i o � / y
lk
Or
`fNJ
} �I,, r r �lr11i�!ti.l` 1 , � rs ` �' I� • J ' t t 11 �' � 14�'i!57�r7
lfl1� ��
, r r ' \\ It I ` ` "' W -_ a • �� I il' 4s� / - -�� I }�4ri��`�� - / �Iv�nJ'"
.r I 'I i \tt'\: � - .. �J •. �jj o r 1�11 1��' r r`� i r /�/! �a7�;,� �''�II''�.� 1 !ii .�f�.S`,•r, t`�r.l•.�.
\r I,�` r'a,'i.,.,�- i�. a �III� I"I 'll1til, r /�'''f�i"d�iii� V..'d•,.�'.''•
°°� rA��
a,. ,� _ i I .I•'� ' I I/ r ,I /- r:•. y.' -r� _ [ - _ -
1.i �, a i 1 is \ � 1 �= =:� `�-- _-_ � \,' p2,� I r 11 ..� I r g , ! / ✓ ti� � ,- ' n — �-
2,,Gr�h
yi
`',`"\I L.^ � ' � •� f r,' P :� _ �II�III I V 0�, `,\\ �t y , \\ \` �\ \ �
\ , _ �+ y a X _ •W \ \ � ,
r \� lA�
41
H \ , `•• _ - n i t+.J�i'�..t r / '�Y - 1 rri,.GL\r`. -! I 7 �3''}\,` .,
7i ooi.
7v]IJYI l , r� , f j` l'_ J t •I'x'\
,uai
!. rqq i�" i .iwL �• \ c { \ _ ;3t v f 4 a I I \ a N L l
- •/I' . I `� ,U � Y (t _ �n'r - � t •,w,.c51
II�, ,�.1,'.��+_-`T'' yil 11�' 1.��� � ��'�� ,\ I;y I - Ba r l�-'./ / , -�� s•
• � ,+. I,r �'Ir tl` �;�I+ � t�l
— �` },} 1 ;14:,� ��'+�'�'\,�\ ��. RAP "��^� 1�'!..� y l � f '�k Ll�j*,,"gr�, � � ,l l � �... •;� _
.. _ IY3,r.'l er -`r�i F ° c e ;���'• \,.*y- �I� ,flan �'�'" :,"'`f '• � i st � `.+ _ � '

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility: I G /7C. � t7%I��I ��C Of VGiCJf'i( f7llZ76?
Owner or Contact Person:
Mailing Address: - a . //
County: ,�l_�J7eci, -- ---. - Telephone: 1L'o S
Present Classification: _ New Facility Existing Facility <
NPDES Per. o. NC00 Nondisc. Per. No.WQ fS— Health Dept.Per No.
Rated by: �1� _ ^Telephone: Date
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone:
Check Classlfication(s): Subsurface Spray Irrigation TC
Wastewater Classification: (Circle One) 1 II III 1V Total Points: 15
IN -FL 04T PROCESSES AND RELATED CONTROL EQUIPMENT WHICH ARE AN INTEGRAL PART Of: INDUSTRIAL PRODUCTION SPALL
NOT BE CONSIDEP,ED WASTE TREATMENT FOR THE PURPOSE OFCIASSiFICATION AL' SEPTIC TANK SYST MS CQNSiSTING
ONLY OF SEPTIC TANK AND GRAVITY NITRIFICATION LINES ARE EXEMPT FROM CLASSIFICATION.
SUBSURFACE CLASSI FICA-f7CN
(check all units 15at apply)
1, septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4, sand titers
5 grease [rap/interceptor
6. oil/water separators
_gravity subsurface treatment and disposal:
pressure subsurface treatment and disposal:
S P?gAY I RRIGATK)N CLAS& FICATION
(check all units that apply)
1.
preliminary treatment (definition no. 32 )
2.
lagoons
3.
septic tanks
4.
pump tanks
5.
pumps
6.
sand filters
7.
grease traplinlerceptor
S.
oil/water separators
9.
disinfection
10.
chemical addition for nutrient/algae control
11.
spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater in excess of these
components s Iall be rated using the point rating system and will require an operator with an
appropriate dual certification.
LAND APPLICATtON/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. Land application of biosolids, residuals or contaminated soils on a designated site.
-------------------------------------------------------------
WASTEWATERTREATMENT FACILITYCLASSIFICATION
The following sys'=_ms shall be assigned a Class I classification, 11p the flow is of a significant quantily or the technology is
unusually complex, to require consideration by the Commission on a case -by -case basis: (Check it Appropriate)
1. Oil/water Separator Systems consisting only of physical separation, pumps and disposal;
2. Septic 7ank/Sand Filler Systems consisting only of septic tanks, dosing apparatus, pumps,sand fillers, disinfec€ion
and direcl discharge;
3. Lagoon Systems consisting only of preliminary irealmenl, lagoons, pumps, disinfection, necessary chemical
irealmenl for algae or nutrient control, and direct discharge;
4. Closed :oop Recycle Systems;
5. Groundwater Remediatiion Systems consisting only of pumps, air -stripping, carbon adsorption, disinfection and
disposal:
6. Aquacc'iure operations with discharge to surface waters;
7. ;Waler giant sludge handling and back -wash water trealmer':
Seaioc--: processing consisting of screening and disposal.
Single-family discharging systems, with the exception of Aerobic Treatment Units, wilt be classified if permitted
after .J,:; 1, 1993 or if upon inspection by the Division, it is found that the system is not being adequately opera€ed
or mat, .Sired. Such systems will be notified of the classification or reclassification by the Commission, in writing,

ne 1c�uawing scale Is used I01 fanng wastewater reatmen€ facilities: (circle appropriate
points)
FI EM POINTS
( 1 )
Industrlal Pretreatment Units or Industrial Pretreatment Piogram (see definition No. 33)...................................................4
(2)
DESIGN
FLOW OF PLANT W gpd [ml applicable to non-xntarninaled cooling waters, sludge handling
lacifities
for water pvrificalion plants, totally closed cycle systen-s(see definition No. 11). and facilities
r
consisting only of Item (4)(d) or Items (4)(d) and (11)(d))
)<
0 - 20,000......... ........ ..................................... ..................................... ............................. ........................
I
20,001 50.000......................................................................................................................................2
50.001 100,000.....................................................................................................................................3
100,001 250.000 ...................................................................................................................................4
250.001 500.000....................................................................................................................................5
500,001 1,000,000 ................................................................................................................................a
1.000.001 . 2,000,000...........................................................................................................................1
0
2.000,001 (and up) rate 1 point additional for each 200,000 gpd capacity up to a
maximumof........................................................................3 0
Design Flow (gpd)
(3)
PRELIMINARY
UN[TSJPROCESSES (see delinition No.32)
(a)
BarScreom............ ................. ............... ................................. ..................................................................
I
or
(b)
Mechanical Screens, Static Screens or Comminuting Devices...........................................................................2
(c)
Grit Removal..............................................................................................................................................I
or
(d)
Mechanical or Aerated Grit Removal.............................................................................................................2
(a)
Flow Measuring Device ...... ................. :........................................................................................................ 1
a
(f)
Instrumented Flow Measurement................................................................................................................2
(g)
Preaeration................................................................................................................................................2
(h)
Influent Flow Equalization..........................................................................................................................2
(I)
Grease or Oil Separators - Gravity .......... ............. .....................................................................................
.....2
Mechanical...........................................................................................................
..............3
DissolvedAir Flotation ............................ .................................. .................................................................. a
())
Prechlorination..........................................................................................................................................5
(4)
PRIMARY TREATMENTUNIT&PROCESSES
(a)
Septic Tank (see delinition No. 43)...........................................................................................................2
•
(b)
Imhoff Tank............................................................. ...... . .........
....5
(c)
Primary Clarifiers ............ :..................... ................ ............... .............. .................................................
.5
(d)
Settling Ponds or Settling Tanks for inorganic Non -toxic Materials {sludge handling facilities for
water purification plants, sand, gravel, stone, and other minfng operations except rocrgalional
activities such as gem or gokd mining).........................................................................................................2
(5)
SECONDARY TREATMENT UNITSrPROCESSES
(a)
Carbonaceous Stage
(i) Aeration -High Purity Oxygen System...............................................................................20
DiffusedAir System.... ................. ................................................................................. 10
Mechanical Air System (fixed, floating or rotor)..................................................................8
Separate Sludge Reaeralion.............................................................................................3
(ii) Trickling Finer
HighRate ........................................ .............................,.................................................7
StandardRate................................................................................................................5
PackedTower.................................................................................................................5
(iii) Biobgical Aerated Filler or Aerated
BiobgicalFplfer........................................................................................ .....................1 0
(iv) Aerated Lagoons..........................................................................................................10
(v) Rotating Biological Contaciors......................................................................................10
(vi) Sand Filters -intermittent biological..................................................................................2
Recirculating biological.....................................................................................................3
{vii) Stabilization Lagoons ............................................. .........................................................
5
(viii) Clarifier...........................................................................................................................5
(ix) Single stage system for combined carbonaceous removal of BOO and nitrogenous
removal by nitrification (sea delinition No. 12){Points for this Item have to be in
addition to items {5){a}{l) through (5)(a)(viii),
utilizing the extended aeration process (sae delinition N0.3a)...........................................2
utilizing other than the s;;tended aeration process .................................................
........... B
tx) Nutrient additions to enhance BOO removal......................................................................5
txi) Biological Culture ('Super Bugs -)addition ....................
(b)
Nitrogenous Stage
(i] Aeration - High Purity Oxygen System...........................................:.................................20
DiffusedAir System. , .............. — I ..... .... I .......................... ............... ........... .............
—.10
Mechanical Air System (li, ed, Iloating or rotor) ............ ..................................................
.... 8
Separate Sludge Reasraiion.......................•---...---...........---..............................................3
TricklingFiller -High Rate...................................................................................................7
StandardRate................................................................................................................5
PackedTower.................................................................................................................5
(iii) Biological Aerated Filter or Aerated Biological Filter.............................................I...............1
0
(iv) Rolaling Biological Contactors......................................................................................10
(v) Sand Filter • inmerminanl biological...................................................................................2
Recirculating biological. .............................. .............. .................................... .................
2
(vi) Clarifier............................................................................................................................5
(6)
TERTIARY OR ADVANCED TREATMENT UNfTS'PROCESSES
(a)
Activated Carbon Beds -
without carbon regeneralion....................................................................................................5
withcarbon regenn.aticn................................................................... ........................15
(a)
Powdered or Granular Activalad Carbon Feed•
wilhout carbon regeneration.................................................................................................5
with carbon regeneration.....................................................................................................
15
(c)
...
Air stripping ........................................ ........... :............... ............................... ........................................
5
(d)
DonitfUication Process............................................................................................................. ...............1
0
(o)
..... .
Eleclrodiatysis ...........................................................................................................---.. ..........
...----....5
(f)
Foam Separaiion......................................................................................................................................5

14avt , btutw anu tauter b rmiai In Wing operations) oy nlgn rate Intutrauon............................................. ......:...4
{i)
Microscreens.............................................................................................................................................5
(j)
Phosphorous Removal by Biotogical Processes (See definition No. 25).........................................................20
(k)
Polishing Ponds - without aeration ............................... ......... .......................... .......... ...............................
..2
withaeration................................................:................................................................5
(1)
Post Aeralion - cascade..............................................................................................................................0
diffused or mechanical.........................................................................................................2
(m)
Reverse Osmosis...........................................'.......................................................................................:.....5
(n)
Sand or Mixed -Media Fillers - low rate..........................................................................................................2
highrate.............................................................
(0)
Treatment processes for removal of mataf or cyanide .... .......................................... ........ ............. I ...............
i 5
(p)
treatment processes for removal of toxic materials other than metal oi cyanide..............................................15
(7)
SLUDGETREATMENT
{a)
Sludge Digestion Tank • Heated (anaerobic)...,.... ....................................................................................... 10
Aerobic..............................................................................................................................................5
Unheated (anaerobic) .................................... .....................
(b)
Sludge Stabilization (chemical or thermal).....................................................................................................5
(c)
SludgeOryingBeds- Gravity ..................................... :......................... ....... :........... ............. .........................
2
VacuumAssisted...................................................................................:...................................::..............
5
(d)
Sludge EWIriation......................................................................................................................................5
(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)(I)).............................................................8
(h)
Sludge Gas Utilization (including gas storage) ................... ..... ...... :............... ........................................_.......2
(i)
Sludge Holding Tank - Aerated ........................................... ... ........................—.......................-...................5
Non-aerated.............................................................................................................................................2
( j )
Sludge Incinerator (not Including activated carbon rogeneration)................................................................1
D
(k)
Vacuum Fifler, Centrifuge, or Filter Press or other similar dewatering devices....................................................1
0
(8)
RESIDUALS
UTILIZATION/DISPOSAL {including incinerated ash)
(a)
Lagoons ......... ................................................. ................................ .......... ........ ...................................
...2
(b)
Land Application (surface and subsurface) (see definition 22a)
by contracting to a land application operator or landfill operator who holds the €and
applicationpermit or landfill permit ............................. ........................ ... ...................... ........... ...:..................
2
(c)
Dedicated Landlili(burial) by the permitlee of (he wastewater treatment facility...............................................5
(9)
DGNFECT)CN
(a)
Chlorination..............................................................................................................................................6
(b)
Dechlorinadon......................................... ............... ...................................................................................5
(c)
Ozone....................................................................................................................................................5
(d)
Radiation......................................................................................................:..........................................5
(10)
CHEMICAL
ADDITION SYSTEM(S) ( see definition No. 9) [not applicable to chemical additions rated as Item
(3)(j),
(5)(a)(xi), (6)(a), (6)(b), (7)(b), (7)(a), (9a), (9)(b) or (9)(c) 5 points each:'
List.........................................................................................
..... ........ .............. I .................................... ..............................................................5
......................................................................................................................
......5
(1 1)
_.......................................................................................................................................5
MISCELLANEOUS UNITSIPROCESSES
(a)
Huiding 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) .......................
(c)
Stage Discharge (not applicable to storage basins inherent in land application systems)..................................5
(d)
Pumps......................................................................................................................................................3
(e}
Stand -Sy Power Supply ........... .......... ............................... ....................... ..............................................
.....3
(f)
Thermal Pollution Control Device........................................................................................:........................3
TOTAL POINTS ................. :.................................... ....................
CLASSIFICATION
Classf............................................................................................................5-25 Points
GlassII ....... ........................................
......................
..........
........
.............
.....
26-50 Points
CLassill....... ..................... ...............................
.................................. .......... 51-85 Points
classlv......... ..... .........................................................................................66-up Points
-------------------------------------------------------------
Facilities having a rating of one through four points, inclusive, do not require a codified operator.
Facilities having an activated sludge process will be assigned a minimum classification of Class 11.
Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class It.
Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum ciassil€cation of Class )11.
--
.00004 DEFINITIONS
The following delirilons shall apply throughout this Subchapter.
(1) Aclivaled Carbon beds. A physicallchemical method for reducing soluble organic material from wastewater afruent; The column -type beds used in this melnod will have
a llow rats varying from two to eight gallons per minute per square foot and may be either upAaw or downAow carbon beds. Carbon may or may nor be regenaraled cn fl-,e
wastewater heatrnenl planl site;
(2) Aerated Lagoons. A basin in which all solids ave maintained in suspension and by which biological oxidad'on or organic matter is reduced hlough artificially accelerated
transfer of oxygen on a flour -through basis;
(3) Aeration, A process of bringing about intimats contact between air W higrt purify oxygen In a liquid by spraying, agitaf{on or ditsion;(3a) Extended Aefaton. An
acbvaled sludge process WiJng a minimum hydraulic deiengc,n time of M hours.
i4) Apr-'+turally managed site. Any site on which a crop is produced, managed, and harvested (C(op includes grasses, grains, trees, etc,);
'5) A( ring. A process by which the ammonium ion is first corrverted to dissolved ammonia (pH adjustment) with the armoria ;fin released to the atmosphere by
cinysli ns; or oc7er sirniar processes Which remove petroleum products such as benzene. Foluene, and xyfene;
i5) Ca,._ rlageneral:on. The regeneration of exhausEed carbon by the use of a furnace to provide exiternely Ngh tarnperatures which volantiza and oxidize the absorbed
'impurities;
:7) Carbonaceous Stage. A stage of waslawalar traatment designed to acNave 'sQror)dary- olAuanl limits:
:5) Cantrifuge_ A mo_hanicaf device in which cenirifuga; lofce Is used to separate solids from liq-;ds or to separate liquids of dilfefant densibos:
:91 Chemical Addition Sysloms� the addi:ion at Chemical(s) to waslawalor at an application point for p�.posea al improving solids removal, pH adjustment, alkalinity cmtrol
etc_; tf.,a capability 10 experiment with dilloreni rhenvcals and dillerenl application points 10 achieve a specific fEsvlt will be considared one system; tha capability to add

chamical(s) to dual units will be rated as one system; capability to add a chemical at a different application poin(s for different purposes will result In the systems being
rated as separate syslems:
(10) Chernical Sludge Conditioning. The add;5on of a chemical compound such as lime, ferric chloride, or a polymer to wet sludge to coalesce the mass prior to its
application to a dewatering device;
(11) C3osed Cycle Systems. Use of holding ponds of holding tanks for containment of wastewater containing Inorganic, non•loxic materials hom sand, gravel, crushed
Slane or other similar operations, Such systems shalt carry a maxfmum of two points regardless of pumping laditias or any other appunanences�
(12) Combined Removal of Carbonaceous BOO and Nitrogenous Removal by Nitrilication- A single stage system required to achieve permit effluent limits on BOO and
ammonia nitrogen within the same biological reactor;
(13) OecNoriration. The partial or compieta reduction of residua; chlorine in a liquid by any chemical or physicat process;
(14) Deritrification Process- The conversion of nitrate-ritrogon to nitrogen gas;
(15) Efecirodialysls. Process for romoving Ionized SOS from water through the use of Ian-seladive Ion -exchange membranes; ^
(16) Filler Press, A process or efriod mechanically for padlaky dewalering s$vdga; .-
(17) Foam Separation. The ptrrrhed frothing of wastewater or waslawater etAuerd as a means of removing excessive ameurts of delergoni materials through the
Introduction of air in the form of fine bubbles; also called foam Iractionation;
(15) Grit Removal. The process of removing gill and ether heavy mineral matter from wastewater;
(ig) Irrinalf Tank, A deep two story wastewater lank consist'mg of an upper sedimentation chamber and a lower sivdge digestion chamber.
(2D) Instrumented Flow Measurement. A device which indicales and retards rate of fuw;
(21) Ion Exchange. A chemical process in which Ions from two different mdecttes ere exchanged;
(22) Land application:
(a) Sludge 'Disposal, A final sludge disposal method by which wet sludge may be appiiod to land either by spraying on the surface or by subsurface Irtjection (i.e.,
chisot plow); )rat applicable for types of sludge described in (11) of this Aida);
(b) Treated Effluent The process of spraying seated wastewater onto a land area or other methods of application of wasiswaleir onto a lard area as a means of final
disposal or treatment;
(23) Microscreen. A low speed, contirwously back -washed, rotatng drum filter operating under gravity conditions as a polishing method for reroving suspended solids
from effluent;
(24) Nitrification Process. The biochemical conversion or unoxidized nitrogen (ammonia and organic nitrogen) to oxidized ritrogem (usually nitrate);
(25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the specific purpose of cowering ammoria nitrogen to nitrate nitrogen;
(26) Phosphate Removal, B;ological. The removal of phosphorus Iron wastewater by an oxiclanoxic process designed to enhance luxury uptake of phosphorus by the
microorganisms;
(27) Polishing Pond. A YAId€na pond following secondary treatment with sufficient dotention time to allow setting of finely suspended solids;
(28) Post Aeration. Aeration following corrvenaonal secondary treatment units to increase effluent D.O. or lot any otter purpose;
(29) Post Aeration. (Cascade) A pofisfx'ng method by which dissolved oxygen Is added to the slAvW by a nonrnecharrcal, gravity means of flowing down a series or
slaps or weirs; 'The flora occurring across the steps or weirs moves in a fairly thin;ayer and the operation of the cascade requires no operator adlustmenl; thus, zaro
paints are assigned even though this is an essantial step to melting lhu limits at the discharge permit;
(30) Powdered to Grandar Activated Carbon Feed. A biophysical carbon process that utilizes biological activity and organic absorption by using powdered or granular
activated carbon; Virgin or regenerated carbon is feed controlled into the system;
(31) Preaerafion, A tank constructed 10 provide aeration prior to primary treatment;
(32) Preliminary Units, Unit operations in the treatment process, such as screening and comminution, that prepare the liquor for subsequent major operations;
(33) Industrial Pfetraatmerll.
(a) Pre-trea"rnen; Unil, Indusbial. The conditioning of a wasle at its source before discharge, to remove or to neutralize substances Injurious to sewers and treament
processes or 10 effect a partial reduction In load on the treaar-ent process which is operated by the same governing body as the wastewater treabnenl piant being
ra to d;
-yb) Pre•troalmont Program, industrial • must be a Slate or EPA required program to receive points on the rating shoat;
(34) Primary Clarifiers. The first settling tanks through which wastewater is passed in a treatment works for the purpose of removing settleable and suspended solids and
BOD which is associated with the sands;
(35) Pixnps. All Innuent, effluent and in -plant pumps;
(36) Radiation. Disinfection or sterilization process utilizing devices emitting ultraviolet or gamma rays;
(37) Reverse Osmosis, A treatment process in which a heavy contaminated liquid is presswizad through a membrane forming nearly pure liquid Ilea from suspended stticis;
(3E) Aolaing Biological Contractors. A fixed biological growin process in which wastewater news through tanks in which a series of partially submerged circular surfaces
are related-
(39) Sand Filters;
(a) Iniorritert Biological. FUtratiort of effluent following septic tanks, lagoons, or lama other treatment process In which ft'•'lher Node -composition is expected to
ynroduts desired etiuents; Hydraulic loading rates on these tillers are computed in gpolac and have a rosuiling tow gpm/sf (lass than ono);
b) P,ecircueating biological • the same type or sand filler as defined in Subparagraph (39) (a) of this Rule will the added capability to recycle effluent back through the
sand filter;
(40) Sand a Mixed -Media Pipers. A poiishing process by which effluent limits are achieved through a kx-thec reduction of suspended solids;
(a) low rate •• gravity, hydraulically loaded filter with loading rates in Ihe one to three gpm/sf range;
(b) Ivgh rate -- a pressure, hydrzvlically loaded filler with loading rates in the live gpmysf range; At any rate, the loading rate will exceed three gprsVsf;
(41) Secondary ClariSers- A tank which follows the biological trait of treabneni plant and which has the purpose of romovirx) sludges associaled with the biological
treatment l/rrilS;
(tit) Separate Sludge Separation. A part of the contact slabilizaGon process where (he aclvated sludge is translerred 10 a lank and aerated bolero ratuming it to the
contact basin;
(43) Sa}tic Tank. A single -story set:�ing tans; in which settled sludge is in contact with the waslewater llowl% through the lank; shall not be applicabla for septic lank
systems sorvino single family rastdences having capacity at 2,ODO gallons or less which discharge ho a rilrification held;
(4,) Sludge Digestion. The process by which organic or volatile matter and sludge is gasified, liouefied, mineralized or converted into more stable organic matter through
the aeti-My of living nrganisms, which includes aerated holding tanks;
(45) Sludge Drying Beds, An area comprising natural or artificial layers of porous materials upon which digested sewage sludge is drier; by drainar'a and evaporation;
(46) Sludge Elutriatlon, A process of sludge conditioning in which certain constiluenis are removed by successive washings with fresh wafer or plant efgluont;
(47) Sludgo vas Utilization. The process of using sewage gas for the purpose of hoating buildings, driving engines, etc.;
(<8) Sludge Holding Tank (Aerated and Nonaarated). A larA utilized lot small wastawater treatment plants no: containing a digester in wlch sludge may be kept fresh,
and supernatant withd awn prior to a drying method (i.e. sludge drying beds); This may be done by adding a small amount of air simply to keep tw sludge fresh, but not
necessarily an amourd slat would be required to achieve stabilization of organic matter. A nonaaraled tank would simply be used to decant sludge prior to dewatering and
would not allow long peri--ds (several days of detention) wiliout resuiling odor problems;
(4g) "Wga Incinerators. A furnace designed to bum sludge and to remora all moisture and combus3ble malerlais and reduce the sludge to a sterile ash;
(50) Sludge S:ayilizOon (Chemical or Thormai). A process to make treated sludge less odorous and putrescible, and to rodvice "pathogenic organism content; This may
be done by pH ac;pssment, chlorine dasirvg, or by heal treatmora:
(5)) Sivdga Tiickener. A type of sedimentation lank In which the sludge is permimad to settle and thicken trough agitation and gravity;
(52) Sla'lilization Lagoon, A type of oxidation lagoon in which biological oxidation of organic matter is effected by natural transfer of oxygen to the water from air (not a
polishing pond); .
(53) Sland•By Power Supply. On site ce portable electrical generating equipment;
(54) Static Screens. A stationary screen designed to remove solids, including non-biodogradable particulate (floalable solids, suspended solids and DOD (educlion) from
municipal and Industrial wastewater treatrnonl systems;
(55) Tertiary Treatment. A stage of treatment following secondary which is primarily for the purpose of effluent polishing; A setting lagoon or sand or coal fills; fright be
employed for this purpose;
(56) Thermal Pollution Control Device. A device providing toe ;he transfer of heat hom a fluid flowing in lubas to another Lurid outside the tubes, or vice versa; or other
means of regutaling !;quid temperatures;
(57) Thermal Sludge ConSdoner, A conditioning process by which heal is added for a protracted period of time to improve tho dewalerability of sludge by the solubilizing
and hydraufizinc of the smaller and more highly hydrated sludge panicles;
(53) Toxic Materials. Those wades or combinations of wastes, including disease -causing agents which after discharge and upon exposure, Ingestion, inhalation or
assimilation into any organism, ailher directly from the onvircrrnenl a indirectly by ingestion through land chains, will cause dea:h, disease, behavioral abnorm3€1lies,
csrecai, genetic mutalion<_• physid.agicat malfunctions (including malfunctions in ropfoduciSon) or physical delarmations, in such organisms or their offspring; Toxic materials
Include, yy way of -souslratian and not limilalion. lead, cadnium, chromium, mercury, vanadium, arsenic, zinc, ofIno•rtiko-chlorobanzone (ONCE), polychlorinalxd biphonyls
(PCBs) and dchloro4phenyl tricNoroothane (DOT); and any other materials that have or may hereafter be determined to have toxic properties;
(59} Trickling Pillar. A biological veA€rment unit consi.&.3 of a material such as broken stone or rock nver which wastewater Is distritwtad; A high rate trickling lifter is one
w€tich operated at between lb and 30 mgd par acre, A !ow rate trickling filler is one which is designed to operate at one to lour mgd per acre;
(60) Trickling F-Vior (pac)%ed Tcr ur). A plug now type of operation in which wastewater flows down tneough successive layers of media or filvate rnaterial; Organic malarial
is isrroved continually- Sy Ire active biological fixed growah in each successive layer. This method may produce 'secondary' quality eflluenl, or may be adapted to
produce a Ntriliad effluent;
(61) Vacuum F41er, Censitvges, or Hirer. Presses. Uevices which are designed to remove excess water from eilhor digested or undigested sludge prior to disposal or
further Irealmenl,