WQ0007707_Final Permit_19940411

Mate 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
April 11, 1994
Mr. Robert L. Beaman
Beasley -Stallings Partnership, Incorporated
Post Office Box 4508
Rocky Mount, North Carolina 27803
Dear Mr. Beaman:
Subject: Permit No. WQ0007707
Beasley -Stallings Partnership, Inc.
South College Road Site
Wilmington, North Carolina
Groundwater Remediation Facilities
New Hanover County
In accordance with your application received March 22, 1993, we are forwarding herewith Permit
No. WQ0007707, dated April 11, 1994, to Beasley -Stallings Partnership, Incorporated for the
construction and operation of the subject groundwater remediation facility.
This permit shall be effective from the date of issuance until March 31, 1999, and shall be subject
to the conditions and limitations as specified therein. Please pay particular attention to the monitoring
requirements in this permit. Failure to establish an adequate system for collecting and maintaining the
required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of
this permit. This request must be in the form of a written petition, conforming to Chapter 150B of 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 need additional
information concerning this matter, please contact Ms. Angela Y. Griffin at [phone].
Sincerely,. a'k'a
n
F.U.
A. Prest Howard, Jr., P.E.
cc: New Hanover County Health Department
David Lazzo, ENS Cl Engineering Group, P. A.
Wilmington Regional Office, Water Quality Section
Wilmington Regional Office, Groundwater Section
Jack Floyd, Groundwater Section
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
GROUNDWATER REMEDIATION SUBSURFACE DISPOSAL (LPP) PERMIT
1n 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
Beasley -Stallings Partnership, Incorporated
New Hanover County
FOR THE
construction and operation of a 1,440 GPD groundwater remediation facility consisting of a recovery well,
an influent surge tank with a 1.5 Hp transfer pump, a 10 gpm air diffuser equipped with a 160 cfrn blower
and a 3 Hp air compressor, an intermediate surge tank with a 1.5 Hp transfer pump, a carbon adsorption
system with automatic backwashing prefiltration liquid phase tanks consisting of four (4) aluminum
silicate sediment filters arranged in parallel, eight (8) 95 pound carbon vessels arranged in four (4) parallel
paths with two (2) units each in series, two (2) 1.5 Hp jet pumps and sediment backwash trickle filter, a
flow meter, high water alarm and all necessary piping to serve Beasley -Stallings Partnership's South
College Road Site with no discharge of wastes to the surface waters, pursuant to the application received
March 22, 1993, and in conformity with the project plan, specifications, and other supporting data
subsequently filed and approved by the Department of Environment, Health and Natural Resources and
considered a part of this permit.
This permit shall be effective from the date of issuance until March 31, 1999, and shall be subject
to the following specified conditions and limitations:
►1:.11
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 [phone], 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.
6. 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.
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 II, Ili, and IV facility at least daily, excluding weekends and
holidays, and must properly manage and document daily operation and maintenance of the
facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202. 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% 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.
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 [phone], as soon as possible, but in no case more than 24 hours or on the
next working day following the occurrence or first knowledge of the occurrence of any of
the following:
a. Any occurrence at the wastewater treatment facility which results in the treatment of
significant amounts of wastes which are abnormal in quantity or characteristic, such as
the dumping of the contents of a basin or tank, the known passage of a slug of
hazardous substance through the facility, 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.;
F?

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.
Prior to beginning waste disposal operations, one additional monitor well (designated as
MW-7 on the attached site map) shall be installed to monitor groundwater quality. The well
shall be constructed such that the water level in the well is never above or below the
screened (open) portion of the well at any time during the year. The general location and
name for each well is marked on Attachment A. The monitoring well shall be located at the
review boundary, constructed in accordance with this permit, and approved by the
Wihnington. Regional Office.
2. Monitor wells (MW-1, 2, 3, 4, 5, 6, and the new well MW-7) shall be sampled every
January and July for the following parameters:
Water Levels
pH
EPA Method 602 (including Xylenes and 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 casing.
3. The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.Q. Box 29535 Raleigh, N.C. 27626-0535 on Form GW-59
[Compliance Monitoring Report Form] every February and August.
4. The influent (from RW-1) and effluent from the treatment system shall be sampled once
every two (2) weeks for the first three (3) months and monthly thereafter for the parameters
specified below:
EPA Method 602 (including Xylenes and MTBE)
Volume of influent treated on a daily basis
The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit, P.O. Box 29535 Raleigh, N.C. 27626-0535 within 30 days of
sample collection.
5. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
be provided.
6. The COMPLIANM 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).
M

In accordance with 15A NCAC 2L, a REVIEW BOLNDARY 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.
7. All wells that are constructed for purposes of groundwater monitoring shall be constructed
in accordance with 15A NCAC 2C .0108 (Standards of Construction for Wells Other than
Water Supply) and any other state and local laws and regulations pertaining to well
construction.
8. Within sixty (60) days of completion of all monitoring wells, the Permittee shall submit
two original copies of a scaled topographic map (scale no greater than 1":100') signed and
sealed by a professional engineer or a state licensed land surveyor that indicates all of the
following information:
a. the location and identity of each monitoring well,
b. the location of the waste disposal system,
c. the location of all property boundaries,
d. the latitude and longitude of the established horizontal control monument,
e. the relative elevation of the top of the well casing (which shall be known as the
"measuring point"), and
f. the depth of water below the measuring point at the time the measuring point is
established.
The survey shall be conducted using approved practices outlined in North Carolina General
Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56.
The surveyor shall establish a horizontal control monument on the property of the waste
disposal system and determine the latitude and longitude of this horizontal control
monument to a horizontal positional accuracy of +/- above shall be surveyed relative to this
horizontal control monument. The positional accuracy of features listed in a. through e.
above shall have a ratio of precision not to exceed an error of closure of 1 foot per 10,000
feet of perimeter of the survey. Any features located by the radial method will be located
from a minimum of two points. Horizontal control monument shall be installed in such a
manner and made of such materials that the monument will not be destroyed due to
activities that may take place on the property. The map shall also be surveyed using the
North American Datum of 1983 coordinate system and shall indicate the datum on the map.
All bearings or azimuths shall be based on either the true or NAD 83 grid meridian. If a
Global Positioning System (GPS) is used to determine the latitude and longitude of the
horizontal control monument, a GPS receiver that has the capability to perform differential
GPS shall be used and all data collected by the GPS receiver will be differentially
corrected.
The maps and any supporting documentation shall be sent to the Groundwater Section,
N.C. Division of Environmental Management P.O. Box 29535 Raleigh, N.C. 27626-
0535.
9. For the initial sampling of the new well MW-7 as specified elsewhere in the permit, the
Permittee shall submit a copy of the GW-1 Form (Well Completion Form) with the
Compliance Monitoring Form (GW-59) for that well. Compliance Monitoring Forms that
do not include copies of the GW-1 form will be returned to the Permittee without being
processed. Failure to submit these forms as required by this permit may result in the
initiation of enforcement activities pursuant to NC General Statutes 143-215.6.
10. All components of the groundwater recovery, treatment, and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system.
C!

11. 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 Wilmington Regional Office within 48 hours.
12. 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 injection
wells. If the treatment system fails to consistently achieve this standard, additional
treatment units or changes in operational methods, may be required.
13. Isoconcentration (lines connecting points of equal concentration) maps in both the vertical
and horizontal directions shall be developed using the semiannual groundwater monitoring
data for BTEX and MTBE. A water level contour map must also be developed on a
semiannual basis. These maps shall be submitted along with all other monitoring data for
that period.
1. 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 Pennittee
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.
VI. GENERAL COINDITIONS
This permit shall become voidable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications, and other supporting
data.
2. This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
3. 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.
4. A set of approved plans and specifications for the subject project must be retained by the
Permittee for the life of this project.
5. 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

6. 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)•
7. 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.
8. The Permittee, at least six (6) months prior to the expiration of this pen -nit, 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 11th day of April, 1994
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Lo
A. Preston- oward, Jr., PIE, Director
Division o nvironmental Management t+
By Authority of the Environmental Management Commission
Permit No. WQ0007707
on

Permit No. WQ0007707
April 11, 1994
IMM1,2151IMM43TWUMM Met,
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.

WRIGHTSVILLE AVE. .ACT
CONTROL WELL SEE DETAIL 2
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PREUWNARY LOCATION OF J \ g- PVC CONDUIT I U y
8' . 12' TREATWENT SYSTEM JI
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PRo'�s - c CL-

Permit No. WQ0009093
April 8, 1994
► ► 01 DI t !►
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
n
Registration No

RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility,
Owner or Contact Person: f`
Mailing Address: 2S . C Re
County: AJL c ALZ,-74VQ- Telephone: G'16
'resent Classification: _ New Facility ✓ Existing` Facility
NPDES Per. No. NC00_ Nondisc. Per. No.W064fC�ealth Dept.Per No.
Rated by: Telephone: '735_ 21- Date:
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC: Grade: Telephone:
Check Class ification(s): Subsurface Spray irrigation Land Application
Wastewater Classification. (Circle One) 1 II 111 IV Total Points:
4,a—ANT PROCESSES AND RELATED CONTROL EQUIPMENT WHICH ARE AN INTEGRAL PART OF INDUSTRIAL PRODUCTION SPALL
NOT BE CONSIDERED WASTE TREATMENT FOR THE PURPOSE OF CLASSIFICATION. ALSO SEPTIC TANK SYSTEMS CADNSI_STING
ONLY OF SEPTIC THE AND 2RA V1Lj' t` IRIFfCATION LINES ARE FXEMPT FICATIOfd.
SUBSURFACE CLASSIFICATION
(check all units that apply)
1. septic tanks
2. pump tanks
3. siphon or pump -dosing systems
4,_ sand fillers
5. grease trap/inlerceptor
6. oil/water separators
_,,,,,_gravity subsurface treatment and disposal;
pressure subsurface treatment and disposal:
SPRAY IRRIGATION C:LAS.SI FIOATION
(check alt units that apply)
1.
preliminary treatment (definition no. 32 }
2,
lagoons
3,
septic tanks
c
pump lanks
5.
pumps
6.
sand fillers
7.
grease traplinterceptor
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 shall be rated us'ng the point rating system and will require an operator with an
appropriate dual certification.
LAND A PPLICATIONIRES I DUALS CLASSIFICATION (Applies only to permit holder)
f . Land application of Nosolids, residuals or contaminated soils on a designated site.
-------------------------------------------------------------
WASTEWATER TREATMENT FACILITYCLASSIFICATION
The following systems shall be assigned a Class I classification, u&,5s the flow is of a significant quantity or the lechnology is
unusually complex, to require ronsideradon by the Commission on a case -by -case basis: (Check if Appropriate)
1. Qil/waler Separator Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand F;Iter Systems consisting only of septic tanks, dosing apparatus, pumps,sand fillers, disinfection
and direct discharge;
3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical
treatment for algae or nutrient control, and direct discharge:
4. Ciosed-loop Recycle Systems;
5. Groundwater Remedialion Systems consisting only of pumps, air -stripping, carbon adsorption, diryiwteciiea-and
disposal;
6. Aquaculture operations with discharge to surface waters;
7. Waler Plant sludge handling and back -wash water trealmer';
Seafood processing consisting of screening and disposal_
Single-family discharging systems, wilh the exception of Aerobic Treatment Units, will be classified it permitted
afler Juiy 1, 1993 or if upon inspection by the Division, it is found that the system is not being adequalely operated
or maintained. Such systems will be notified of the classification or reclassification by the Commission, in writing.

111d luituwlfly buaie 15 ubeu wi ldung wastewater 'i-'eatment tlClilties: (Circle appropriate
points) '
ITEM POINTS
( 1)
Industrial Pretreatment Units or Industrial Pretreatment Program (see definition No. 33)...................................................4
(2)
DESIGN FLOW OF PLANT IN gpd [not appticabla to non -contaminated cooling waters, sludge handling
facilities
for water purification plants, 1012fly closed cycle systerns(see definition No. 11). and facilities
consisting only of Item (4)(d) or Items (4)(d) and (11)(d)]
0 - 20.000................................................................................................................................................1
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 Wd capacity up to a
maximumoi........................................................................30
Design Flow (gpd)
(3)
PRELIMINARY
UNITS/PROCESSES (see delinhion N0.32)
(a)
Bar Screens ............................. .....................................,...........................................................................1
or
(b)
Mechanical Screens, Static Screens or Comminuting Devices.. .........................................................................
2
(c)
Grit Removal ...................... ..-..................................................................1
(d)
Mechanical or Aerated Grh Removal .................. .................................................... .................... ., .................2
(0)
Flow Measuring Device................................................................................................................................
I
or
(f)
Instrumented Flow Measurement................................................................................................................2
(g)
Preaeralion............................................. ...............................................................................2
(h)
Influent Flow Equalization .............................................. ........................ ...................... I .... ... ......... I.............
M
Grsase or Oil Separators - Gravity ......................
MachanicaI.................................................................................................................................................3
DissolvedAir Flotation...............................................................................................................................8
(i)
Prechlorinallon..........................................................................................................................................5
(4)
PRIMARY TREATMENT UNFT&PFK)CESSES
(a)
Septic Tank (see definition No. 43)............................................................................................................2
(b)
Imhoff Tank...............................................................................................................................................5
(c)
Primary Clariliers_'.......................................................................................................................................5
(d)
Settling Ponds or Settling Tanks for fnorganic Nontoxic Materfafs (sludge handling lacilities for
water purllication plants, sand, gravel, stone, and other mining operations except recreational
a0vilies such as gem or gold mining).........................................................................................................2
(5)
SECONDARY TREATMENT UNITSrPROCESSES
(a)
Carbonaceous Stage
(!( Aeration -High Purity Oxygen System...............................................................................20
DiffusedAir System.......................................................................................................10
Mechanical Air System (fixed, floating or rotor)..................................................................8
Separate Sludge Reaeraticn.............................................................................................3
(ii) Trickling Finer
HighRate ........................................ .................._...................................................I........7
StandardRate..............._..............................,,.....................................................5
PackedTower.................................................................................................................5
(iii) Biological Aerated Filter or Aerated
BiologicalFher.............................................................................................................1
0
(iv) Aerated Lagoons..........................................................................................................10
(v) Rotating Biological Contactors ................................. ................ ......................................
10
(vi) Sand Filters -intermittent biological..................................................................................2
Recirculating bfo4ogical.....................................................................................................3
(vii) Stabilization Lagoons.....................................................................................................5
(vii!) Clarkbr..................:........................................................................................................5
(ix) Single stage system for combined carbonaceous removal of BOO and nitrogenous
removal by nitrification (see definition No. 12){Points for this item have to be in
addition to items (5)(a)(i) through (5)(a}(viii),
utilizing the extended aeration process (see definition No.3a)...........................................2
utilizing other than the extended aeration process............................................................8
(x) Nutrient additions 10 enhance SOD removal......................................................................5
(xi) Biological Culture (-Super Bugs-)addition........................................................................5
(b)
Nitrogenous Stage
(i} Aeration - High Purity Oxygen Systdm.............................................................................20
DiffusedAir System.......................................................................................................1
0
Mechanical Air System (lined, floating or rotor)..................................................................8
Separate Sludge Reaeration............................... ............................... ..............................
.
3
(ii) Trickling Filter -high Rate..................................................................................................7
StandardRate..........................................................................................................,......5
PackedTower................................................................................................................5
{ill} Biological Aerated Filler or Aerated Biological Filter .............................................................1
0
(iv) Rotating Biological Conlactors......................................................................................10
(v) Sand Filler - IntKntinent bioiogical...................................................................2
Recirculating biological ............................. ................................. .--................................... .3
(vi) Ctarrf per...................................................................................................-........ _............-.5
(6)
TERTIAW. OR ADVANCED TREATMENT UNITSrPROCESSES
(a)
Activated Carbon Gods -
without carbon regeneralion..............................................................................................5
with carbon rsgenoralion.......... ..............................................................................i
................
s
(b)
Powdered or Granular Activatau Carbon Feed -
without carbon regenuration........................................................................ .........................5
withcarbon regeneration.....................................................................................................15
CAir
stripping ..............r........................................................ ........................
I ...... 5
(d)
DenitrfiCation Process.........--......................................................................0
(0)
Electrodialysis........................... .......................... ......----- .-..............-......5
(1)
Foam Separation......................................................................................................................................5

1­1­ o.rf kbVU 4U11111:Un f'44. ',do) trial appltcaole for sand,
gravel, slone and other similar mining operations) by high rate'lnfihration......... .... .................... .......... 1..........
4
(i)
Microscreens.......................................................................... ................... .............................................
.5
(�}
Phosphorous Removal by Biological Processes (See definition No. 26).........................................................20
(k)
Polishing Ponds - without aeration.............. ..............._.2
withaeration ............................................... ................................................._................5
(1)
Post Aeration - cascade..............................................................................................................................0
dillus6d or mechanical ....................................... ........................... .............. :........................
(m)
Reverse Osmosis............................._.....:..................----........................................._..............................5
(n)
Sand or Mixed -Media Filters - low rate .................... .......................................... ................................ ..... ......1.2
highrate .........................................................5
(o)
Treatment procesc�es for removal of rnatal or cyanide...................................................................................1
5
(p)
treatment processes for removal of toxic materials other than metal of cyanide..............................................15
(7)
SLUDG
E T RFATMENT
a
Sludge Digestion Tank - Heated anaerobic................................................................................A
0
Aerobic............ ... ............ I ..... .......................................,.......................,........................_..................5
Unhealed(anaerobic)................................................................................................................................3
(b)
Sludge Stabilization (chemical or thermal)...................................................................................................5
(c)
Sludge Drying Beds - Gravity.......................................................................................................................2
Vacuum Assisted...............................................................................................................
(d)
Sludge Efutriation......................................................................................................................................5
(e)
Sludge Conditioner (chemical or thermal).....................................................................................................5
(1)
Sludge Thickener (gravity) .............................................. .........................................................................
...5
( g )
Dissolved Air Flolalion Unit [not applicable to a unit rated as(3)(i)j.............................................................8
(h)
Sludge Gas Utilization (including gas storage) ........ ...................... :............. ............................ .....................
2
(€)
Sludge Holding Tank - Aerated....................................................................................................................5
Norraerwed.............................................................................................................._...............................2
(j}
Sludge Incinerator (no[ Including activated carbon regeneration)................................................................10
(k)
Vacuum Filter, Centrifuge, or Filler Press or other similar dewatering devices...................................................10
(6)
RESIDUALS
UTILIZATION/DISPOSAL (including incinerated ash)
(a)
Lagoons...........................................................................................................................I......................2
(b)
Land Application (surface and subsurface) (see definition 22a}
by contracting to a land application operator or landfill operator who holds the land
application permit or landfill permit..............................................................................................I...............2
(c)
Dedicated Landfill(burial) by the permillee of the wastewater treatment lacilily..................................... ..........5
(9)
DSINFECRCN
(a)
Chlorination........................................................................................................................... .......... .........
(b)
Dechiorination.............................................................. .............................................................................5
(c)
Ozone.......................................................................................................................................................5
(d)
Radiation................................................................................................................6
(10)
CHEMICAL
ADDITION SYSTEM(S) ( see definition No. 9) (not applicable to chemical additions rated as Item
(3)(j),
(5)(a)(xf), (6)(a), (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 points each;
List_.......
..... .................. .............. ...........................................................................................
5
.................................................................................................................................5
............................................................................................................1......................15
....................................................................................................................5
(1 1)
MISCELLANEOUS UcNq&PFIOCESSES
(a)
Holding Ponds, Bolding Taiks or Settling Ponds for Organic or Toxic Malefiats including wastes
- Irom mining operations containing nitrogen or phosphorus compounds in amounts significantly
greater than is common for domestic wastewater.. ........................................................................... ...........
4
(b)
Eflluent Flow Equalization (not applicable to storage basins which are inherent in land application
systems)....................................................................................... ........
.....2
(c)
Stage Discharge (not applicable to storage basins inherent in land application systems) ..................................5
(d)
Pumps..............................._......._...............---..................................................................................3
(0)
Sland-By Power Supply ....................... ......3
(I }
Thermal Pollution Control Device.........................................................................................................
......3
TOTALPOINTS..........................................................................
CLASSIFICATION
Classt...........................................................................................................5.25 Points
ClassII ............ ............................................................................................. 26-50 Points
classIII ........................................................................................................51.65 Points
CtassIV............................. ......................................................................... 66-Up Points
--------------------------------------------------
acililies having a raling of one through four points, inclusive, do not require a certified operator.
acifities having an aci�vated sludge process will be assigned a minimum classification of Class It.
acililies having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
acuities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class Ili.
>p.t OEFINITIONS
to following definitions shall apply throughout this SuDchapler.
I Activated Carbon Beds. A physical/chemical method for reducing soluble organic malarial from wastewater effluent; The cofurmtype bads used in this method will have
flow rate varying Isom two to sight gallons per minuio per square loot and rosy be either upfiow or downflow carbon beds. Carbon may or may not be regenerated on the
islawalar treatment plant site;
Aerated Lagoons. A basin in which all solids are mainlained in suspension and by which biological oxidation or organic matter is reduced Through artificially accelerated
nsler of oxygen on a flow -through basis;
Aeration. A process of bringing about intimate contact between air or high purity Oxygen in a liquid by spraying, agitation or diffusion;(3a) Extended Aeration. An
tivaled dudes process utilizing a minirrwm hydraulic detention time of IS hours.
Ag( slly managed silo_ Any site on which a crop is produced, managed, and harvested (Crop includes grasses, grains, trees, etc.);
Air ng. A process by which the ammonium ion is first converted to dissolved ammonia (pli adjustment) with the ammona then released to the atmosphere by
ysic.. :ns; or other simlar processes which remove petroleum products such as benzene, toluene, and xylane;
Carbon Regeneration, The regeneration of exhausted carbon by the use of a lurnace to provide axlfemofy Ngh lemperatwas which volatilize aril oxidize me absorbed
W ties;
Carbonaceous Slago. A stage of wastewater treatment designed to achieve "secondary alruent Limits;
Centrifuge. A mechanical davice In which centriT,igal force is used In separate sollds from tiq'.ids or to separate liquids of diltoramt densities:
Chemical Addition Systems- Tho addtion of chemical(s) to waslawaton at an appficalion point for wposos of improving solids removal, pH ad'vslmont, alLaliniry control,
.; the capability to experiment with diifo,ow chonrcais and 0llwunl application points to achieva a specific result will be considered one sysam; Iba cap2tx4ty to add

chamcal(s) to dual units will be rated as one system; capability to add a chemical at a diflerent application poin(s for dil(erent purposes will result in the systems being
rated as separate systems;
(10) Chcrriical 8ludgo Conditioring. The addition of a chotr>ical compound such as lime• ferric chloride, or a polymer to wet sludge to coalcsca the mass prior to its
application to a dewalaring device;
(it) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of waslowaler contairirrj Inorgaric, non toxic materials mom sand, gravel, crushed
stone or other similar operations. Such systems shall carry a rnaxfmum of two points regardless of pumping facilities or any other appurtenances'.
(12) Combined Rernaval of Carbonaceous 1300 and Nitrogenous Removal by Nitrification- A singre slage system required to achieve permit affluent limns on DOD and
ammonia nitrogen within the same blologicai reactor;
(13) Dechlorination. The partial or complete teduction of residual chlorine in a liquld by any chemical or physical process;
(s4) Danitrilicalion Process. The conversion of niVale-nitrogen to ritrogoo gas;
(15) Electiodialysis_ Process for romovirg Ionized salts kom waler tfyoQgh the use of Ion-setwive Ian -exchange membranes; -
(16) Filter Press. A process ocereted mechanically for partially dawake rin ,sludge;
(17) Foam Separation. The pIprnad frothing of wastewater or wastawaler effluent as a means of removing excessive amounts of detergent materials through the
Introduction of air in the form of fine bubbles; also called foam fractionation;
(18) Grit Removal. The process of removing gnt and other heavy mineral matter from wastewater;
(19) Irrincff Tank. A deep Two story wastewater lank cordisting of an upper sedimentation chamber and a lower sludge digestion chamber.
(20) InstrumentedFlowMeasurement A device which indicates and records rate of now:
(21) Ion Exchange. A chemical process In which ions from two different molecules are exchanged;
(22) Land application:
(a) Sludge Disposal. A final sludge dispersal method by which wet sludge may ber applied to land either by spraying on the suffaee or by subsuriace Irtjection (i.e.•
chisel plow): (not applicable for types of sludge dascnbed in 'III) of this Rule);
(b) Treated EflluerrL Too process of spraying treated wastewater onto a land area or other methods of application of wastewater onto a land area as a means of final
disposal or treatment;
(23) Microscreen. A low speed, conlirwously back -washed, rotating drum litter operating under gravity conditions as a pdish'.ng matlwd for removing suspended solids
Irons effluent;
(24) Nifritication Process. The biochemical conversion of unoxidtzed rtrogen (ammonia and organic nitrogen) to oxidized rilrogen (Usually nitrale);
(25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the 6pecit2c purpose at converting amrnoria ritrogen to nitrate nitrogen;
(26) Phosphate Removal, Bidogica?, The removal of phosphorus from wastewater by an oxiclanoxic process designed to enhance luxury uptake of phosphorus by the
microorganisms;
(27) Polishing Pond. A Y#d'ino pond fo)IoMng secondary treatment wiM sufficient detentian lime to allow setting of finely suspended solids;
(28) Pas( Aeration. Aeration following conventional secondary rroalmont writs to increase Dill D.O, or for any other purpose;
(29) Post Aeration. (Cascade) A polis-Nng method by which dissolved oxygen Is added to the efnuenl by a norrnechanical, gravity rneans of flowing down a series o[
steps or weirs: 'The iiaw occurring across the steps or weirs moves in a fairly thin layer and the operation of the cascade requires no operator alustment: thus, zero
points are assigned even though this is an essontiaE stop to meeting trio limits of the discharge permit;
(30) Powdered to Granuiar Activated Carbon Feed. P, b'optiysical carbon process that utRzas biological activity and organic absorption by using powdered or granular
activated carbon; Virgin or regenerated carton is lead controlled into Vhe system;
(3s) Praanration. A tank constructed to provide aeration prior to primary treatment;
(32) Preiiminary Urits, Unit operations in the treatment process, such as screening and commirution, that prepare the liquor for subsequent major operations;
(33) lnciusbr al Pretreatment.
(a) Pre lreatrne Unil, lndvstriai, The conditioning of a waste at its source balwe discharge• to remove or to neutralize substances Injurious to sewers and treatment
processes or to affect a partial reduction In load on the treafinent process which is operated by the same governing body as the wastewater treatment plant being
rated;
b) Pre-trealmont Program, industrial - must be a Stale or EPA roquired program la receive points on the rating shoot;
(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 solids;
(35) Pmps. AR innuent, GMuanl and in -plant pumps;
(36) Radiation. Disinfection or steriiizalion process utilizing devices emitting ultravidet or gamma rays
(37) Reverse Osmosi=. A treatment procass in which a heavy contaminated liquid is pressurized &vough a mernbrane forming nearly pure liquid Iree from suspended solids;
(3E) Rolating Biological Contractors. A fixed biological growth process in which wastewater nows through tanks in which a series of partially submerged circular surfaces
are rolated;
(39) Sand Filters:
(a) Inlermiirterr( Biological. Fiilration.ol elivent foltovring septic tanks, lagoons• or some other treatment process in which N4 Mon Nodecompcsition is expected to
produce desired anivents; Hydraulic loading rates on these filters are computed in gpdrac and have a resulting low gpnvsf (less than ono):
b) Recircilating biological • the same typo of sand Wer as defined in Subparagraph (39) (a) of this Rule with the added capability to recycle afhuenl back through the
sand tiller;
(40) Sand or Mixed-Madla Flllors. A polishing process by which effluent limits are actievad through a further reduction of suspended solids;
(a) laK rate - T..aNity, hydraulically loaded tiller with loading rates In the one to three gpmisf range;
(b) high rate •• a pressure• hydraulically loaded filler with loadirig rates in the five gprTVsl range; At any rate, the loading rate will exceed three gprtvsrl
(41) Secondary CrariSars. A. lank which follows the biological unit of treatment plant and which has the purpose of removirg siudgas associated with the biological
Ieatmant units;
(42) Separale Sludoo Reaeration. A part of the contact stabilization process where flw activated stodge is transferred to a lank and aaraled before refining it to the
conlacl basin;
(43) Septic Tank. A singla-story selling lank in which salad sludge is in contact with dw wastewater flowing through the tank; shall not be applicable for septic lank
systems servino single fannily residences having capacity of 2.000 gallons or less which discharge to a nitrification held;
(4,) Sludge Digestion. The process by which orgaric or volatile manor and sludge is gasified, liquefied, mineralized or converted into more stab€a organic matter through
the activiy, al living organisms, which includes aerated holding lanks;
(45) Sludge Drying Beds. An area comprising natural or artificial layers of porous maledals upon which digested sewage s:udga is dried by drainage and evaporation;
(46) Sludca ELtriation. A process of sludge conditioning in which certain constituents are removed by successive washings with fresh water or plant elltuont;
(47) Sludge Gas U4iizalion. The process of using sewage gas for the purpose of heating buildings, driving engines, etc.;
(4a) Sludge Holding Tank (Aerated and Nonaerated). A tank utilized nor small wastawater Iroalment plants not containing a digester in which sludge may be kept trash,
a.•hd superrtalarll withdrawn prior to a drying method (i.s. sludge drying beds); This may be done by adding a small amount of air simply to keep the sludga fresh, but not
necossacily an amowd that would be raquifed to achieve slabilizalion or organic matter. A nonaerated tank would simply be used to decant sludge prior to dewatering and
would not allow long periods (several days of detention) wii!lovt rosining odor problems;
(49) Svdga Incneralors, A furnace designed to burn sludge and to remove ali moisture and combustible materials and reduce the sludge to a slarrIe ash;
(50) Sludge Stabilizacon (Chemical or Thermal). A process to make treated sludge lass odorous and putrescible, and to reduce b-,e pathogenic organism content; This may
be done by phi err .,stnhen;, chlorine dosing, or by heal treatment;
(51) Sivdga Tfickener. A typo of sedimentation tank in which the sludge is perrsitled to settle and thicken through agitation and gravity;
(52) Slahilization Lagoon. A type cf oxidation lagoon in which bioiogical oxidation of organic matter is effected by nFi ral transfer at oxygen to the water Fom air (not is.
polishing pond);
(53) Stand By Power Supply. On site or portable etectrical generating equipmanl;
(54) Slatic Screens. A stationary screen designed to remove solids, including non -biodegradable particulate (hoalable solids, suspended solids and DOD reduction) from
municipal and industrial wastewater Veatrnonl systems;
(55) Tertiary Treatrnont. A slage of treatment following secondary which is primarily Ion the plrrpose of effluent pofishirg; A settling lagoon or sand or coal filler aright be
ompfoyed tar this purpose;
(56) Thermal Pollution Control Device. A device providing for the transfer of heal from a fluid Rowing in tubes to another Enid oulside the tubes, or vice versa; or other
means of regtlating liquid lamperalures:
(57) Thermal Sludge Conditioner. A conditioning process by which heal is added for a protracted period of lima to improve the dowaterabitity of sludge by the solubtlizing
and hydrauizina of the r mallar and morn highly hydrated sludge particles:
(58) Toxic Maleness. Those wastes or comUnations of wastes• including disease -causing agents which after discharge and upon exposure, igeslion, inhalation or
assimiiafion into any organism, either direr"y Irom the sn irorment or indooctiy by ingestion through food chains, will cause death, disease, behavioral abnormalities,
cancer, gonetk mutations• phys7ological malfunctions (incfudng maihrnctions in reproduction) or physical dolormations, in such orgarisms or their offspring: Toxic materials
include• by way of illusuation and not (irritation: lead, cadmium, chromium- mercury, vanadium• arsaric• zinc ortno-"Iro-cNorobenzene (ONCE), polychlorinated blphenyls
(PCBs) and dichlorodlphenyf Irichloroelhane (DDT): and any other materials that have or may hereafter be deterrrined to have toxic properties;
(59) Trickling Alan. A Uological Irealrnent urwl ccnsi:rr,g of a malorial such as broken stone or rock over which v.aslewalar Is cistributod: A high rate trickling litter is one
wltich operated at between 10 and 3.7 mgd per acre, A'ow Bate trickling filter is one which is designed to operate at one to four mgd per acre;
(60) Trickling Filter (Packed Tox'or). A plug now type of operation in which waslowalor llows down Waugh successive layors of media or filirale rnaieriat: Organic material
is removed contirwally by trio active biological fixed gromh in each successive layer- This mochod may produce 'secondary- quaky efnuenl, or may be adapted to
Produce 0 nitrified olfluont:
(61) Vacuunh Fitter, Cantrituges, or Filter, Presses. Devices which are designod to ramove excess water from either digested er undigested sludge prior to disposal or
former trealmer'.1.