PLACER COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 906 - AIRBORNE TOXIC CONTROL MEASURE, ETC.
(Adopted 02/04/92)

                                  CONTENTS

          100. GENERAL

               101. PURPOSE

               102. APPLICABILITY

               103. EXEMPTION, CREMATORIA


          200. DEFINITIONS

               201. ARB

               202. ARB TEST METHOD 1

               203. ARB TEST METHOD 2

               204. ARB TEST METHOD 3

               205. ARB TEST METHOD 4

               206. ARB TEST METHOD 5

               207. ARB TEST METHOD 421

               208. ARB TEST METHOD 428

               209. CONTROL EQUIPMENT

               210. DIOXINS

               211. DISTRICT

               212. EXCESS AIR

               213. FACILITY

               214. MEDICAL FACILITIES

               215. MEDICAL WASTE INCINERATOR

               216. MULTIPLE CHAMBER STARVED AIR INCINERATOR

               217. STOICHIOMETRIC AIR

               218. SUB-STOICHIOMETRIC AIR

               219. UNCONTROLLED EMISSIONS

               220. WASTE

               221. WASTE CHARGING RATE


          300  STANDARDS

               301. EMISSION LIMITATIONS

               302. OPERATING REQUIREMENTS

               303. ASH HANDLING REQUIREMENTS

               304. REQUIRED ANCILLARY EQUIPMENT



          400. ADMINISTRATIVE REQUIREMENTS

               401. COMPLIANCE SCHEDULE

               402. DETERMINATION OF COMPLIANCE

               403. UPSET NOTIFICATION

               404. SHUTDOWN NOTIFICATION

               405. OPERATOR CERTIFICATION



          500. MONITORING AND RECORDS

               501. MONITORING

               502. TEST REQUIREMENTS

               503. RECORDKEEPING

          

          

          

          100. GENERAL



               101. Purpose:    The  purpose of this rule is to comply with

                    Section   93104,   Title   17,   California   Code   of

                    Regulations, for the control of the emission of Dioxins

                    from  medical  waste  incinerators   and  to  establish

                    minimum    requirements    for   operation.    Emission

                    limitations are established  for  hydrochloric acid and

                    particulate matter from medical waste incinerators.



               102. Applicability:   Any  person  who owns  or  operates  a

                    medical  waste  incinerator  shall   comply   with  the

                    requirements of this Rule.



               103. Exemption, Crematoria:  This control measure shall  not

                    apply  to  those  incinerators  which  are  exclusively

                    crematoria of human or animal remains.



          200. DEFINITIONS



               201. ARB  -   means  the  State  of California Air Resources

                    Board.



               202. ARB Test Method 1 -  means the test method specified in

                    Title  17,  California  Code  of  Regulations,  Section

                    94101,  Sample  and Velocity Traverses  for  Stationary

                    Sources.



               203. ARB Test Method 2 -  means the test method specified in

                    Title  17,  California  Code  of  Regulations,  Section

                    94102,  Determination   of   Stack   Gas  Velocity  and

                    Volumetric Flow Rate.



               204. ARB Test Method 3 -  means the test method specified in

                    Title  17,  California  Code  of  Regulations,  Section

                    94103, Gas Analysis for Carbon Dioxide,  Oxygen, Excess

                    Air, and Dry Molecular Weight.



               205. ARB Test Method 4 -  means the test method specified in

                    Title  17,  California  Code  of  Regulations,  Section

                    94104,  Determination  of  Moisture  Content  in  Stack

                    Gases.



               206. ARB Test Method 5 -  means the test method specified in

                    Title  17,  California  Code  of  Regulations,  Section

                    94105,  Determination of Particulate  Matter  Emissions

                    from Stationary Sources.



               207. ARB Test  Method 421 -  means the test method specified

                    in Title 17,  California  Code  of Regulations, Section

                    94131,  Determination  of Hydrochloric  Acid  Emissions

                    from Stationary Sources.



               208. ARB Test Method 428 -  means  the test method specified

                    in  Title 17, California Code of  Regulations,  Section

                    94139,   Determination  of  Polychlorinated  Dibenzo-p-

                    Dioxin (PCDD), Polychlorinated Dibenzofuran (PCDF), and

                    Polychlorinated    Biphenyl    (PCB)   Emissions   from

                    Stationary Sources.



               209. Control  Equipment  -  means any device  which  reduces

                    emissions from medical waste incinerators.



               210. Dioxins  -  means dibenzo-p-dioxins  and  dibenzofurans

                    chlorinated  in  the  2,  3,  7,  and  8  positions and

                    containing  4,  5,  6,  or  7  chlorine  atoms  and  is

                    expressed  as 2, 3, 7, 8 tetrachlorinated dibenzo-para-

                    dioxin equivalents  using current California Department

                    of Health Services toxic equivalency factors.



               211. District  -  means  the  Placer  County  Air  Pollution

                    Control District.

               212. Excess Air -  means the  air supplied in excess of that

                    necessary to completely burn compounds.



               213. Facility  -  means every building, structure,

                    appurtenance,  installation, or improvement located  on

                    land which is under  the  same  or  common ownership or

                    operation, and is on one or more contiguous or adjacent

                    properties.



               214. Medical Facilities -  means medical and dental offices,

                    clinics  and  hospitals,  skilled  nursing  facilities,

                    research  facilities,  research laboratories,  clinical

                    laboratories,  all  unlicensed   and  licensed  medical

                    facilities,  clinics  and hospitals,  surgery  centers,

                    diagnostic laboratories,  and other providers of health

                    care.   For  the  purposes  of   this   Rule,   medical

                    facilities include providers of veterinary services.



               215. Medical  Waste Incinerator -  means all of the furnaces

                    or other closed  fire  chambers  that  are located at a

                    facility  and  used  to  dispose of waste generated  at

                    medical facilities by burning.



               216. Multiple Chamber Starved  Air Incinerator -  or

                    Controlled  Air Incinerator, means an incinerator which

                    is designed to burn waste in two independent chambers:



                    216.1     Primary Chamber - where the majority of waste

                              volume  reduction  occurs  operated  at  sub-

                              stoichiometric conditions



                    216.2     Secondary  Chamber  -  operates at excess air

                              conditions;  where destruction  of  gas-phase

                              combustion products  occurs.   Passage ports,

                              ducts,   flues,  chimneys,  or  stacks   with

                              burners shall  not  be  considered Controlled

                              Air secondary chambers unless  the combustion

                              zone   exhibits   design  measures  for   the

                              retention of the gas  stream  in the chamber,

                              turbulence or mixing, and the availability of

                              excess  air,  as  determined  by  engineering

                              analysis.



               217. Stoichiometric Air - means   an  amount  of  air

                    (theoretical combustion air) theoretically required for

                    the  complete  combustion  of  compounds   with   total

                    depletion of oxygen.



               218. Sub-stoichiometric  Air - means an amount  of  air

                    (theoretical  combustion  air) less than that required

                    for the complete combustion of compounds.



               219. Uncontrolled Emissions -  means the  dioxins  emissions

                    measured  from the incinerator at a location downstream

                    of the last  combustion  chamber,  but prior to the air

                    pollution control equipment.

               

               220. Waste - means   all discarded  putrescible   and

                    nonputrescible solid, semisolid,  and liquid materials,

                    including garbage, trash, refuse, paper, rubbish, food,

                    ashes,  plastics,  industrial  wastes,  demolition  and

                    construction wastes, equipment,  instruments, utensils,

                    appliances, manure, and human or animal solid and semi-

                    solid wastes.



               221. Waste Charging Rate - means the amount of waste charged

                    or fed into the incinerator per unit  of  time, usually

                    expressed in terms of pounds per hour or kilograms  per

                    hour.



          300. STANDARDS



               301. Emission  Limitations  -  No  person  shall  operate  a

                    medical waste incinerator unless:



                    301.1     The dioxins emissions have been reduced to 10

                              nanograms  or  less  per  kilogram  of  waste

                              burned.

                    301.2     Hydrochloric acid emissions do not exceed  30

                              ppmdv, corrected to 12% carbon dioxide (CO2),

                              for any 1 hour emission rate.



                    301.3     Particulate  Matter  emissions  do not exceed

                              0.01  grains  per  dry cubic foot of  gas  at

                              standard conditions,  corrected to 12% carbon

                              dioxide (CO2).  The concentration limit shall

                              apply to filterable (front  half) particulate

                              matter measured using ARB Test Method 5.



               302. Operating  Requirements:   No  person shall  operate  a

                    medical waste incinerator unless  the  incinerator  and

                    the  control  equipment  required  to  comply  with the

                    limitations of Section 301 are installed and used  in a

                    manner  which has been demonstrated to and approved  by

                    the  District Air Pollution Control Officer to meet the

                    following requirements:



                    302.1     The flue gas temperature at the outlet of the

                              control   equipment,   or   the   outlet   of

                              incinerator  stack  if  no  control equipment

                              installed,  shall  not  exceed  300   degrees

                              Fahrenheit,  unless  it has been demonstrated

                              to, and approved in writing  by, both the ARB

                              and   the  District  Air  Pollution   Control

                              Officer  that lower emissions are achieved at

                              a higher outlet temperature; and



                    302.2     For  a  single   chamber   incinerator,   the

                              combustion  chamber shall be maintained at no

                              less  than  1800   degrees  (+  200  degrees)

                              Fahrenheit.   Single  chamber  medical  waste

                              incinerator not  in  operation on January 13,

                              1992 are prohibited.



                    302.3     For   a   multiple   chamber    starved   air

                              incinerator,  the primary combustion  chamber

                              shall be maintained  at  no  less  than  1400

                              degrees Fahrenheit, and the secondary chamber

                              shall  be  maintained  at  no  less than 1800

                              degrees (+ 200 degrees) Fahrenheit.  No waste

                              shall  be  fed  into  the incinerator  during

                              start-up and shut-down unless the incinerator

                              combustion chamber(s) are within the required

                              temperature range.



                    302.4     The  furnace  design  shall   provide  for  a

                              residence time for combustion gas of at least

                              one   second.    Residence   time  shall   be

                              calculated using the following equation:



                              Residence Time =     V/QC

                         Where:

                              V =  means the volume, as expressed  in cubic

                                   feet,  from the point in the incinerator

                                   where the  maximum  temperature has been

                                   reached  until  the  point   where   the

                                   temperature has dropped to 1600oF.



                              QC = means the combustion gas flow through V,

                                   as  expressed  in  actual cubic feet per

                                   second, which is measured  according  to

                                   ARB  Test  Method 2, after adjusting the

                                   measured  flow   rate   to  the  maximum

                                   combustion chamber temperature  (TC)  by

                                   using TC instead of TSTD in the ARB Test

                                   Method 2 calculation for QC.



                                   The volumetric flow rate measured at the

                                   sampling  points  must  be  adjusted  to

                                   chamber pressures.



                                   Alternative   methods  may  be  used  if

                                   conditions    for     determining    the

                                   combustion gas flow rate by Method 2 are

                                   unacceptable.   The determination  shall

                                   be  equivalent  to,   and   within   the

                                   guidelines  of, ARB Test Method 2 and at

                                   the  discretion  of  the  Air  Pollution

                                   Control Officer.



                              TC = means   the   maximum   temperature,  in

                                   degrees   Fahrenheit,  that   has   been

                                   reached in the incinerator.



                    302.5     The   discharge   of   emissions   from   the

                              combustion chamber,  is  solely  through  the

                              control  equipment,  or  solely  through  the

                              incinerator  stack if no control equipment is

                              installed.



               303. Ash Handling Requirements:   No  person shall operate a

                    medical waste incinerator unless the  bottom  ash,  fly

                    ash and scrubber residuals are handled and stored in  a

                    manner that prevents entrainment into ambient air.



               304. Required  Ancillary Equipment:  No person shall operate

                    a  medical  waste   incinerator  unless  the  following

                    equipment is installed  and  maintained  in an operable

                    condition:



                    304.1     A   continuous   data  recording  system   as

                              specified in Section 501.



                    304.2     Primary  and  secondary   combustion  chamber

                              temperature indication.



                    304.3     Equipment for determining and  recording  the

                              weight of waste charged to the incinerator.



                    304.4     An  automated  ram waste feeder with airlock,

                              for  batch  fed incinerators,  such  that  no

                              ingress of external  air  occurs  during  the

                              process  of  feeding  waste  to  the  primary

                              combustion chamber.



          400. ADMINISTRATIVE REQUIREMENTS



               401. Compliance Schedule:



                    401.1     No later than 90 days after January 13, 1992,

                              the  owner  or  operator  of  a medical waste

                              incinerator shall submit to the  District Air

                              Pollution Control Officer an application  for

                              an   authority  to  construct  the  equipment

                              necessary to meet the requirements of Section

                              301, and



                    401.2     No later  than  15  months  after January 13,

                              1992,  the  owner  or operator of  a  medical

                              waste incinerator shall be in compliance with

                              this regulation.



               402. Determination   of   Compliance:    For   purposes   of

                    demonstrating compliance  with  the  emission limits of

                    Section  301 of this Rule the owner or  operator  of  a

                    medical waste  incinerator  shall conduct the following

                    source tests in the manner specified in Section 502:



                    402.1     A minimum of two annual  source tests for the

                              dioxins stack emissions using ARB Test Method

                              428,  for  medical  waste  incinerators  that

                              incinerate  more than 25 tons  of  waste  per

                              year  .   Annual   source   tests   shall  be

                              conducted  until  at  least  two  consecutive

                              tests   demonstrate  compliance.   The   high

                              resolution  mass  spectrometry  option of ARB

                              Test Method 428 shall be used.



                    402.2     One  initial  source  test  for stack  Dioxin

                              emissions,  using  ARB Test Method  428,  for

                              medical waste incinerators that incinerate 25

                              tons or less of waste  per  year.   The  high

                              resolution  mass  spectrometry  option of ARB

                              Test Method 428 shall be used.



                    402.3     One    initial    source   test   for   stack

                              Hydrochloric Acid emissions  using  ARB  Test

                              Method 421.



                    402.4     One initial source test for stack particulate

                              matter  emissions  using  ARB  Test Methods 1

                              through 5.

                    Further  source  testing  may  be required by  the  Air

                    Pollution Control Officer in accordance  with Rule 507,

                    Provision of Sampling and Testing Facilities.



               403. Upset  Notification:   Any  violation, malfunction,  or

                    upset condition on the incinerator,  the  air pollution

                    control  equipment,  or  the  continuous data recording

                    system shall be reported to the  District within 1 hour

                    of occurrence or by 9:00 AM the next  business  day  if

                    the  malfunction  occurs  outside normal business hours

                    and the District does not maintain  a  radio room or an

                    answering machine.



               404. Shutdown  Notification:   The  owner or operator  of  a

                    medical  waste incinerator who intends  to  permanently

                    shut down operation of the incinerator shall notify the

                    District of  the  shutdown  date  within  90 days after

                    January 13, 1992.  The shutdown date shall  be no later

                    than six months after January 13, 1992.



               405. Operator  Certification:   No  person  shall operate  a

                    medical  waste  incinerator unless each individual  who

                    operates or maintains  the incinerator obtains either a

                    certificate of training  in  medical waste incineration

                    issued by the American Society  of Mechanical Engineers

                    within nine months of the commencement  of the training

                    program,  or equivalent training as determined  by  the

                    Air Pollution  Control Officer.  Copies of the training

                    certificates  for   the   operators   and   maintenance

                    engineers  shall be submitted to the District  and  the

                    original certificates shall be available for inspection

                    at the facility with the permit to operate.



          500. MONITORING AND RECORDS



               501. Monitoring:   The  owner or operator of a medical waste

                    incinerator shall maintain  a continuous data recording

                    system  which  provides  for  each   day  of  operation

                    continuous recording of:



                    501.1     Primary  and  secondary  combustion   chamber

                              temperatures;



                    501.2     Carbon monoxide emissions;



                    501.3     Hourly waste charging rates;



                    501.4     The  opacity  of  stack  emissions  or  other

                              indicator  of  particulate  matter  which  is

                              approved by the District  Air  Pollution

                              Control Officer; and



                    501.5     Key operating parameters of the air pollution

                              control equipment,  as  specified  by the Air

                              Pollution Control Officer.

               502. Test Requirements:



                    502.1     Test Plan:  At least sixty (60) days prior to

                              the  planned  conduct  of  testing, a written

                              test  plan  (two copies) detailing  the  test

                              methods and procedures  to  be  used shall be

                              submitted  for approval by the Air  Pollution

                              Control Officer.   The  plan  shall  cite the

                              test methods to be used for the determination

                              of  compliance  with the emission limitations

                              of this Rule, including  any  proposed use of

                              alternate  test  methods.   The  plan   shall

                              provide   the  proposed  procedures  for  the

                              characterization  of the representative waste

                              to be burned during testing.



                    502.2     Test Performance and Reporting:  For purposes

                              of determining compliance with Section 301 of

                              this  Rule,  the  source   testing  shall  be

                              conducted    at   the   stack.    Information

                              regarding the  composition (moisture content,

                              heating value in  British  Thermal Units, and

                              amount of the total waste, by weight percent,

                              that is infectious, pathological,  hazardous,

                              or  radioactive and remaining waste which  is

                              paper  or  cardboard,  plastics,  glass,  wet

                              garbage)  and  feed  rate  of  the  waste and

                              auxiliary fuel charged during the source test

                              shall be provided with the test results.  The

                              Air  Pollution  Control  Officer  can require

                              additional  necessary  information  regarding

                              the composition of the waste.  Source testing

                              shall  be  conducted  at  the  maximum  waste

                              firing capacity (+ 10 percent) allowed by the

                              air  district  permit.   A copy of all source

                              test  results  conducted  for   purposes   of

                              demonstrating compliance with this rule shall

                              be  provided to the ARB at the same time that

                              it is provided to the District.



               503. Recordkeeping:  Maintenance  records  for the

                    incinerator,  control equipment, and monitoring

                    equipment; and calibration  records for the monitoring

                    equipment.  Such records shall be retained  on-site for

                    a  period  of  24  months,  and  made available to the

                    District upon request.