HomeMy WebLinkAboutWQ0010528_Final Permit_19950418State 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 18, 1995
Mr. Thomas James McIntosh III
Director of Public Works
Town of Ramseur
P.O. Box 545
Ramseur, NC 27316
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ID FE F-:::)&'
Subject: Permit No. WQ0010528
Town of Ramseur
Surface Disposal of Wastewater Residuals
Randolph County
Dear Mr. McIntosh:
In accordance with your application received on January 18, 1995, we are forwarding herewith
Permit No. WQ0010528, dated April 18, 1995, to the Town of Ramseur for the operation of an active
sewage sludge unit for the purpose of the disposal of wastewater residuals.
This permit shall be effective from the date of issuance until March 31, 2000, 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 Mr. Ray Cox at (919)
733-5083 ext. 549.
Sincerely,
A. 4zward, Jr., P.E,
cc: Randolph County Health Department
Winston-Salem Regional Office, Water Quality Section
Winston-Salem Regional Office, Groundwater Section
Brian Wagner, Groundwater Section, Central Office
Training and Certification Unit
Facilities Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496
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
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 THE
Town of Ramseur
Randolph County
FOR THE
operation of an active sewage sludge unit consisting of a 10-acre lined lagoon and the associated piping in
place for the disposal of approximately 156 dry tons per year of lime -stabilized residuals from the Town of
Ramseur wastewater treatment facility with no discharge of wastes to the surface waters, pursuant to.the
application received on January 18, 1995, and in conformity with the project plan, specifications, and
other supporting data subsequently filed and approved by the Department of Environment, Health and
Natural Resources and considered a part of this permit.
This permit shall be effective from the date of issuance until March 31, 2000, 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. 50 feet between the active sewage sludge unit and property lines (if the original permit
was issued with the buffer distance to property line as 100 feet, updated maps must be
submitted and new acreage delineated for the buffer to be reduced),
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.
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 at the disposal site.
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. QPERATION AND MAINTENANCE REQUIREMENTS
The facilities and the disposal site 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 unit in accordance with this permit:
Permit Estimated
Source County Number Volume (dry-tons/year
Town of Ramseur WWTP Randolph NCO026565 156
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):
Parameter mg/kg
Arsenic 39
Chromium 260
Nickel 270
4. Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified operator to be in responsible charge (QRC) 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
$A, .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.
S. 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. 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.
11. 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 application 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 kilogramslyear
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.
The residuals analysis shall include but is not necessarily limited to the following
r parameters:
Arsenic % Total Solids
Chromium pH
Nickel
4. A Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted by the
Permittee annually. The TCLP analysis shall include the following parameters (please note
the regulatory level in mglL in parentheses):
Arsenic (5.0)
Benzene (0.5)
Carbon tetrachloride (0.5)
Chlorobenzene (100A)
Chromium (5.0)
m-Cresol (200.0)
Cresol (200.0)
1,4-Dichlorobenzene (7.5)
1,1-Dichloroethylene (0.7)
Endrin (0.02)
Hexachlorobenzene (0.13)
Hexachloroethane (3.0)
Lindane (0.4)
Methoxychlor (10.0)
Nitrobenzene (2.0)
Pyridine (5.0)
Silver (5.0)
Toxaphene (0.5)
2,4,5-Trichlorophenol (400,0)
2,4,5-TP (Silvex) (1.0)
Barium (100.0)
Cadmium (1.0)
Chlordane (0.03)
Chloroform (6.0)
o-Cresol (200.0)
p-Cresol (200.0)
2,4-D (10.0)
1,2-Dichloroethane (0.5)
2,4-Dinitrotoluene (0.13)
Heptachlor (and its hydroxide) (0.008)
Hexachloro-1,3-butadiene (0.5)
Lead (5.0)
Mercury (0.2)
Methyl ethyl ketone (200.0)
Pentachlorophenol (100.0)
Selenium (1.0)
Tetrachioroethylene (0.7)
Trichloroethylene (0.5)
2,4,6-Trichlorophenol (2.0)
Vinyl chloride (0.2)
5. 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 the 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.
6. Three copies of all required monitoring and reporting requirements as specified in
conditions III 1, III 2, 1113, III 4 and III 5 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
7. Noncompliance Notification:
The Permittee shall report by telephone to the Winston-Salem Regional Office, telephone
number (910) 771-4600, 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.
4
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.
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.
I V . 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
1. 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.
5
VI. GENERAL CONDITIONS
1. 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.
Permit issued this the eighteenth day of April, 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A. Presto oward, Jr., PI., Director
Division o nvironmental Management
By Authority of the Environmental Management Commission
Permit Number WQ0010528
0
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NORTH CAROLINA—RANDOLPH CO.
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RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS
Name of Facility:
Owner or Contact Person:
Mailing Address: Ktp EL=u T54-tE1 f524!�t' ► LL 2aT-?,tcp _
County: „ 2� �0� 1 Telephone: 21 c> - Bz.4- - 4 l t I
Present Classification: 7C __-Now Facility Existing Facility L
NPDES Per. No. NCOONondisc. Per. No.WQoa/o57B Health Dept -Per No.
Rated by: Telephone: qto-`+t-4/GM Date: �qS
Reviewed by: Health Dept. Telephone:
Regional Office Telephone:
Central Office Telephone:
ORC:, il�tll�t�+�, t� _ Grade: 1T Telephone:
Check Classification(s): Subsurface Spray Irrigation K Land Application
Wastewater Classification: (Circle One) I it III IN Total Points: 4-4--
---------------------------
SUBSURFACE CtJM.+IFICATM
(check all units that apply)
1 septic tanks
2 pump tanks
3. siphon or pump -dosing systam
4-sand filters
5. grease trapAnterceptor
di-oil/water separators
7. gravity subsurface treatment and disposal:
S. pressure subsurface treatment and disposal:
SPRAY Ii3RIGATICN CLRSSIFICAiiON
(check all units that aWy)
1`
preliminary treatment (definition no. 32 )
2.
lagoons
3_
septic tanks
4.
pump tanks
5-pumps
S.
sand filters
7-grease
trap/interceptor
8.
oil/water separators
9-disinfeclion
14.
chemical addition for nuirient/algae control
11.
spray irrigation of wastewater
In addition to the above classifications, pretreatment of wastewater in excess of these components shall
be rated using the point rating system and will require on operator with an appropriate dual certification.
LAND APPLICATION/RESIDUALS CLASSIFICATION (Applies only to permit holder)
1. x Land application of biosolids, residuals or contaminated soils on a designated site.
WASTEWATER TREATMENT FACTUTYCLASSIFICATt N
The following systems shalt be assigned a Class I classification, unless the flow is of a significant quantity or the technology is unusually
oomplex, to require consideration by the Commission on a case -by -case basis: (Check If Appropriate)
9.Oil/wafer Separator Systems consisting only of physical separation, pumps and disposal;
2. Septic Tank/Sand Fitter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection
and direct discharge;
3.,_„ _Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for
algae or nutrient control, and direct discharge;
4. Closed -loop Recycle Systems;
5. _ _Groundwater Remediation Systems consisting only of oll/wafer separalors, pumps, air -stripping, carbon adsorption, disinfealon
and dispo.U- ;
6. Aquaculiure operations with discharge to surface waters;
7. Wafer Plant sludge handling and back -wash water treatment;
8. _Sealood processing consisting of screening and disposal.
9. Single -!amity discharging systems, with the exeeplion of Aerobic Treatment units, will be classified if permitted after July 1,
1993 or 9 upon inspedion by the Division, h is found that the system is not being adequately operated or maintained. Such
systems will be notified of the classification or reclassiticallon by the Commission, In writing.
'The following scale Is used for mfing wastewater treatment facilities: (circle appropriate points)
ITEM wmmoro
«I lindutarlal Pretreatment Units or Ind"mwarpro,
(2) osu GN FLOW orKANT
~=.°'pw"=°"o` plants. totally do6od cycie systerrWass dellmitlan W. I I I and facilities consisting only of Item
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purl!"llon plargs. WXL gravel. Marw, and other mining operations except recroadioral actlMilies. such as gern
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(19) Slrgfest^*vst^mfo,w*m*m*dw^rb*nwceow^ne=wal of SOD and nitrogenous removal by
nitrification (sea Minhion No. 112)(Points for this Nam have I* be in addition to Rome
(6)(u%1) through
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mmzIng mx°, than the w,,."u"a mwr&o"^
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B;ologlcat Aerated Filter mAerated Blwvm*mpmwx-_-_---__--__-----'._-~�p
4110 pw,m/nowm/"omm comm�*�..~-,_.--.-__-_.-....._^.-..'-....---_--__'vn
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w°"/rcu/^unn w"/����-___-_-__�-._--_--_----_-....... .................. __-�
(V) c*ffa,............................. ... -______-_^___---'_-__-__�__—__�
(n) TERTIARY onaovAUwCEoTREATMENT wwnSIpmoCawuES
(m)
Activated Carbon Beds '
without carbon
with carbon toga
(w)
Powdered wGranular Activated Carbon Food.
without carbon rag one
withcarbon regeneration __--______-__--.-----__'--_._~--.-'___-`m
»
(1)
Post Aeration cascade .............. ... »... _........ Y.............».........._».»_-.........................
diffused or
(m)
Reverse Osr"094........................... ». ... .: ».....»_. ... .»«........ 5
(n)
Sand or Mixed -Media Fktert: low rate ..... _»__......... _.... ..... .»»...�. .._ .. _._ ...__..._...._._...... ..2
highrate ..... ... ........................... .... ... ... ............. 5
(0)
Treatment processes for removal of metal or cyanide .............................................. ..................................... 1 5
(P)
treatment processes for nvrxwW of toxic materials other than metal or cyanide...__.»... _. _. �,__._...__....15
(7)
SL.UDGETREAT{vEW
(a)
Sludge Digestion Tank Heated (anaerobic)__._W .»«.__ »........._.«..._ ...r . » »....10
Aerobic..... ..........................._. _ ........._....« ......» .... _�... » ».....».......»»._ .�....».5
Unheated (anaerobic)............................. _.�...».».....».»» `_..» _ __.............. ..».».....»»......3
(b)
Sludge Stabilization (chemical orthennai}.».....»....»»......................«..........».......».........- ..»..5
(c)
Sludge Drying Beds -Gravity...»...»...... ...»...............».. .......»..» .»..»..._ »..»... _. ,....................2
VacuumAssisted .......................................... ......................................................... .......... ....................
(d)
Sludge Eluirlation... ...... ..................._.».....................—................................................5
(a)
Sludge Conditioner (chemical or ..................... .-........
(f)
Sludge Thickener (gravIly)......... ».............................. ...»..... ...«..r.._..»... «__.5
(g)
Dissolved Air Flotation unit (not applicable to a unit rated as (3}Q11..» »»». .. .................».»»...».».........8
(h)
Sludge Gas Utilization (Including gas storage).......^._....» .»... » . » „.. «» .... r.— .......... ........2
(1)
Sludge Holding Tank - Aerated ..... »............. »................. ...-- _..........»....-«.».......... .__»..«_...... ........
Non -aerated........ ..._ ......._ ... .. ......................... _...... ...»...... ............ .- .................... ».2
(j)
Sludge Incinerator (nol Including activated carbon rageneration)................................................................10
(k)
Vacuum Filler, Centrifuge, or Fher Press or other similar dewatering devices.. __ .. __.. ... .......10
(s)
RESIDUALS Ur1L12ATiOWDISPOSAL (rududng incinerated ash} �y
(a) lagoons............................................................................................»....»............»...........................�J
(b)
Land Application (surface and subsurface) (see definiion 22a)
by contracting to a land application operator or landfill operator who holds taw Land application permit
or landfill parmrt...................................... »..................................................... .......... ..... .......... ...».2
(c)
- Dedicated Landlill(burfal) by the pemtlftee of the wastewater treatment facility »..........
(9)
DEWECTM
(a)
Chlorination......«.»...«....»...«...........»»...........»»«»..»«.».«.........».»...............................»..........._.
(b)
Dechlodnation..........................................»._...........».»..........».»...._..._....................................-
(c)
Dzorw._........».................»........—_.................».....,...................».»..........».....»....«... .. S
......................5
(d)
Radiation-_ .... ......................................
(i 0)
CHEMICAL ADDITION SYSTEM(S) ( see definition No. 9) Inot applicable to chemical addiikm rated as hem (3)0),
(5)(s)(xl),
(6)(a), (6)(b), (7)(b). (7)(s), (9a), (9)(b) or (9)(c) 5 points each:
Lis[
............... ........... ......................... ......... .......... ...»................... .............................. 5
............................................................................»»................................................... 5
................... ....................................... ................. ...._................................................5
................................................ ......... ......5 .............. .... ........_.............. ».»»» .................
(1 1)
MISCELLMEOU,S UNI MPFir)CESSES
(a)
Holding Ponds, Holding Tanks or Sealing Ponds for Organic or Toxic Materials Including wastes from mining
operations coniaining nitrogen or phosphorus compounds in amounts slgnhkantly greater than Is common
fordomestic waslewaler.... .................... ........................ ........................ _............................ ........... ........ s
(b)
Effluent Flow Equalization (rot applicable to storage basins which are Inherent In lard application systams)....2
(c)
Stage Dise Arge (not applicable to storage basins Inherent In land application
(d)
Pumps............ ...........» . ...... .................. ............ ...... ....... .................................................... r�
(a)
(1)
Stand -By Power Supply.. ».»».» ..... ......... .......»...»....»»...»_...» » ........».. ».......... 3
Tharmal Pollution Control Device .«... ..................... ......... .. ». »... ... ...»......... ..... ».::
TOTAL
CIASSfFMATCN
Class I ........................... ».... ............ ........... .................... .,.-.......... .......... 5-25 Points
class 11..........»...»»...,........... ..»««...»................................................26.50 Points
Class ill. .... ......... » ..... .».»..»...... »....»............... ...............................51-65 Points
t:siV».. .....»»........»...................».....»............». _.._»..... »...66 Up Poirtls
Facilities having a rating of one through four points, Inclusive, do rot require a certified operator.
Facilities having an selivaled sludge process WIN be assigned a minimum classHkatlon of Class IL
Fa6ftles having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11.
Faculties having treatment processes for the biological removal of phosphorus will be assigned a minimum class icalion of Class 111.
-----------------------------------------------------------_.—
MU DEFINrrK f4.S
The following dellnhions shall apply throughout this Subchapter,
(1) Activated Carbon Beds. A phys caYchemical method tot reducing soluble organic material imm wastewater effluent; The column -type beds used In this
method will have a flow rile varying from two to eight galion6 per mirwre per square foot and may be ehher uprlow or downtlow carbon beds. Carbon may or
may not be regenerated on the wastewater treatment plant she;
(2) Aerated Lagoons. A basin In which all solids are maintained In suspensiort and by which biological oxidation or organic matter Is reduced through art'rficlalty
accelerated transfer of oxygen on a flow -through basis;
(3) Aeration. A process of b6aging about inilmate contact between air or high purity oxygen In a liquid by spraying, aghatlon or dltfuslon;(3a) Extended
Aeration. An activated sludge process utilizing a minimum hycitatilc detention time of i6 hours.
(4) Agriculturally, managed she. Any she on which a Crop is prcduced, managed, and harvested (Crop Includes grasses, grairc, tie", etc.):
(5) Air Sirfippeng. A process by which the ammonium Ion is first convened to dissolved ammonia (pH adjustment) with the ammonia then released to the
atmosphare by physical means; or other similar processes which remove petmleum products such as benzene, toluene, and xylene;
(6) Carbon Regeneration. The rageneratlon of exhausted carbon by the use of a lumace to provide extremely high lempermures which vo[atlilze and oxidize the
ab6orbad Impurhlas;
(7) Carbonaceous Stage. A slags of wastewater treatment designed to achieve 'secondary' effluent Ilmhs;
(a) Centrifuge. A mechanlca.1 device in which centrifugal force Is used to separate solids from 5qulds or to separate liquids of tftfferent denshas;
(9) Chemical Addition Systems- The additlon of chemical(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment.
alkalinity control, etc.; the capability to experiment whh different chemicals and dhfererd application points to achieve a specific result wlil be considered one
systam; the capability to add chamical(s) to dual units will be rated as ore system; capability to add a chemical at a d lerent application polnis for different
purposes w111 result in the systems being rated as separate systamt;
(10) Chemical Sludge Conditioning. The addition of a chemical compound such as fame, ferric chloride, or a polymer to wet sludge to coalesce the mass prior to
As application to a dewaiering device;
(11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing Inorganic, non -toxic materials from sand, gravel,
crushed Mons. or other similar operations. Such systems shall carry a maximum of two points regardless of pumping lacilhles or any other appurtenances:
(12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nhdication- A single stago system regvired to achieve pearl; effluent llrrtts on BOD
and ammonia nhrogen within the same biological reactor,
(13) Deehlorinatlon. The partial or compfef a reduction of residual chlorine in a llquld by any chemical or physkal process;
(14) DenitrKIcation Process. The cortverslon of nitrate -nitrogen to nitrogen gas;