U.S. DEPARTMENT OF COMMERCE
                                 National Technical Information Service
                                 PB-296 684
Air Pollution Regulations in
State  Implementation Plans
California,  Plumas County

Abcor,  Inc, Wilmington, MA  Walden Div
Prepared for

Environmental  Protection  Agency,  Research Triangle Park, NC   Control
Programs Development Div
Aug 78

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United States
Environmental Protection
Agency
Office of Air Quality
Planning and Standards
Research Triangle Park NC 27711
August 1978
Air
Air Pollution  Regulations
in State Implementation
Plans:
California
                   ^,, * -
       REPRODUCED BY    '   '

       NATIONAL TECHNICAL

       INFORMATION SERVICE
       U.S. DEPARTMENT OF COMMERCE .
         SPRINGFIELD. VA. 22161

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                                   TECHNICAL REPORT DATA
                            (Please read Inunctions on the revene before completing)
  EPA-450/3-W-C54-2*
                              2.
 4,. TITLE .AND SUBTITLE
 Air  Pollution Regulations 1n  State Implementation i
 Plans:   California  Plumas County
                                                           3. RECIPIENT'S ACCESSIO
             B. REPORT DATE
               August  1978'
             8. PERFORMING ORGANIZATION CODE
 . AUTHOR(S)
                                                           '8. PERFORMING ORGANIZATION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
  Walden Division  of Abcor, Inc.
  Wilmington, Mass.
                                                           10. PROGRAM ELEMENT NO.
             11. CONTRACT7GRANT NO.
                                                             68-02-2890
 12. SPONSORING AGENCY NAME AND ADDRESS
                                                           13. TYPE OF REPORT AND PERIOD COVERED
  Control Programs  Development Division
  Office of Air  Quality Planning and Standards
  Office of Air, Noise, and Radiation
  Research Triangle Park. NC 27711	
             14. SPONSORING AGENCY CODE
 15. SUPPLEMENTARY NOTES
  EPA Project  Officer:   Bob Schell, Control  Programs Development Division
 16. ABSTRACT
  This document  has  been produced in compliance with Section 110(h)(l)  of the Clean Air
  Act amendments of  1977.  The Federally  enforceable regulations contained in the State
  Implementation Plans (SIPs) have been compiled for all 56 States  and  territories
  (with the exception of the Northern Mariana Islands).  They consist of both the
  Federally approved State and/or local air quality regulations as  Indicated in the
  Federal Register and the Federally promulgated regulations for the  State, as
  indicated in the Federal Register. Regulations which fall into one  of the above
  categories as  of January 1, 1978, have  been incorporated.  As mandated by Congress,
  this document  will be updated annually.   State and/or local air quality regulations
  which have not been Federally approved  as of January 1, 1978, are not included here;
  omission of these  regulations from this document in no way affects  the ability of
  the respective Federal, State, or local agencies to enforce such  regulations.
                                KEY WORDS AND DOCUMENT ANALYSIS
                  DESCRIPTORS
b.IDENTIFIERS/OPEN ENDED TERMS  C. COSATI Field/Group
  Air pollution
  Federal Regulations
  Pollution
  State Implementation Plans
 8. DISTRIBUTION STATEMENT

  RELEASE UNLIMITED
19. SECURITY CLASS (ThisReport)
   Unclassified
                           21.
                                              20. SECURITY CLASS (Thispage)

                                                 Unclassified
                                           L-
EPA Form 2220-1 (9-73)

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     Air Pollution  Regulations
in State  Implementation Plans:
                        by

                 Walden Division of Abcor, Inc.
                  Wilmington, Massachusetts
                  Contract No. 68-02-2890
                 EPA Project Officer: Bob Schell
                     Prepared for

             U.S. ENVIRONMENTAL PROTECTION AGENCY
                Office of Air, Noise, and Radiation
             Office of Air Quality Planning and Standards
             Research Triangle Park, North Carolina 27711

                     August 1978

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This report is issued by the Environmental Protection Agency to
report air pollution regulations of interest to a limited number of
readers.  Copies are available, for a fee, from the National Technical
Information Service, 5285  Port Royal Road, Springfield, VA 22161.
This report was furnished to the Environmental Protection Agency by
Walden Division of Abcor, Inc., Wilmington, Mass. 01887, in fulfillment
of Contract No. 68-02-2890.  The contents of this report are reproduced
herein as received from Walden Division of Abcor, Inc. The opinions,
findings, and conclusions expressed are  those of the author and not
necessarily those of the Environmental Protection Agency. Mention of
company or product names is not to be considered as an endorsement
by the Environmental Protection Agency.
                    Publication No. EPA-450/3-78-054-27
                                  ii

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                             INTRODUCTION
     This document has been produced in compliance with Section 110(h)(l)
of the Clean Air Act Amendments of 1977.  The Federally enforceable
regulations contained in the State Implementation Plans (SIPs) have been
compiled for all 56 States and territories (with the exception of the
Northern Mariana Islands).  They consist of both the Federally approved
State and/or local air quality regulations as indicated in the Federal
Register and the Federally promulgated regulations for the State, as
indicated in the Federal Register.  Regulations which fall into one of
the above categories as of January 1, 1978, have been incorporated.  As
mandated by Congress, this document will be updated annually.  State
and/or local air quality regulations which have not been Federally
approved as of January 1, 1978, are not included here; omission of these
regulations from this document in no way affects the ability of the
respective Federal, State, or local agencies to enforce such regulations.

     There have been recent changes in the Federal enforceability of
parking management regulations and indirect source regulations.  The
October, 1977, appropriation bill for EPA prohibited Federal enforcement
of parking management regulations in the absence of specific Federal
authorizing legislation.  Federally promulgated parking management
regulations have, therefore, been suspended indefinitely.  Pursuant to
the 1977 Clean Air Act Amendments, indirect source regulations may not
be required for the approval of a given SIP.  Consequently, any State
adopted indirect source regulations may be suspended or revoked; State
adopted indirect source regulations contained in an applicable SIP
are Federally enforceable.  More importantly, EPA may only promulgate
indirect source review regulations which are specific to Federally
funded, operated,-or owned facilities or projects.  Therefore, the
Federally promulgated indirect source, regulations appearing in this
document are not enforceable by EPA except as they relate to Federal
facilities.

     Since State air quality regulations vary widely in their organization,
content, and language, a standardized subject index is utilized in this
document.  Index listings consist of both contaminant and activity oriented
categories to facilitate usage.  For example, for regulations which apply
to copper smelters, one might look under sulfur compounds (50.2), particu-
1ate matter process weight (50.1.1), or copper smelters (51.15).  Federal
regulations pertaining to a given State immediately follow the approved
State and local regulations.

     Additionally,  a summary sheet of the information included in each
comprehensive document is presented prior to the'regulatory text to
allow one to quickly assess the contents of the document.  Specifically,
the summary sheets  contain the date of submittal to EPA of each revision
                                   iii

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to the SIP and the date of the Federal Register in which the reyision
was either approved or disapproved by EPA"!Finally, a brief description
or reference of the regulation which was submitted is also included.

     This document is not intended to provide a tool for determining
the enforceability of any given regulation.  As stated above, it is
intended to provide a comprehensive compilation of those regulations
which are incorporated directly or by reference into Title 40, Part 52,
of the Code of Federal Regulations.  Consequently, the exclusion of a
Federally approved regulation from this document does not diminish the
enforceability of the regulation.  Similarly, the inclusion of a given
regulation (for example, regulations governing pollutants, such as odors,
for which there is no national ambient air quality standards) in this
document does not, in itself, render the regulation enforceable.
                                   1v

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                                 SUMMARY SHEET
                                      OF
                        EPA-APPROVED REGULATION CHANGES

                               PLUMAS COUNTY APCD

Submlttal Date               Approval Date             Description
   6/30/72                      9/22/72           All Regulations approved
                                                  unless otherwise specified.

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                         DOCUMENTATION OF CURRENT ERA-APPROVED
                            STATE AIR POLLUTION REGULATIONS
                            REVISED STANDARD SUBJECT INDEX
 1.0   DEFINITIONS
 2.0   GENERAL PROVISIONS AND ADMINISTRATIVE PROCEDURES
 3.0   REGISTRATION CERTIFICATES, OPERATING PERMITS AND APPLICATIONS
 4.0   AIR QUALITY STANDARDS (PRIMARY AND SECONDARY)
       4.1   PARTICULATES
       4.2   SULFUR DIOXIDE
       4.3   NITRIC OXIDES
       4.4   HYDROCARBONS
       4.5   CARBON MONOXIDE
       4.6   OXIDANTS
       4.7   OTHERS
 5.0   VARIANCES
 6.0   COMPLIANCE SCHEDULES
 7.0   EQUIPMENT MALFUNCTION AND MAINTENANCE
 8.0   EMERGENCY EPISODES
 9.0   AIR QUALITY SURVEILLANCE AND SOURCE TESTING
10.0   NEW SOURCE PERFORMANCE STANDARDS
11.0   NATIONAL EMISSIONS STANDARDS FOR HAZARDOUS AIR POLLUTANTS
12.0   MOTOR VEHICLE EMISSIONS AND CONTROLS
13.0   RECORD KEEPING AND REPORTING
14.0   PUBLIC AVAILABILITY OF DATA
15.0   LEGAL AUTHORITY AND ENFORCEMENT
16.0   HEARINGS, COMPLAINTS. AND INVESTIGATIONS
17.0   PREVENTION OF SIGNIFICANT DETERIORATION
18.0   AIR QUALITY MAINTENANCE AREA
19.0 - 49.0
       RESERVED FOR FUTURE EXPANSION OF COMMON INDEX
50.0   POLLUTANT - SPECIFIC REGULATIONS
       50.1  PARTICULATES
             50.1.1  PROCESS WEIGHT
             50.1.2  VISIBLE EMISSIONS
             50.1.3  GENERAL

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       50.2   SULFUR COMPOUNDS
       50.3   NITRIC OXIDES
       50.4   HYDROCARBONS
       50.5   CARBON MONOXIDE
       50.6   ODOROUS POLLUTANTS
       50.7   OTHERS (Pb, Hg, etc.)
51.0   SOURCE CATEGORY SPECIFIC REGULATIONS
       51.1   AGRICULTURAL PROCESSES (Includes Grain Handling, Orchard Heaters.
              R1ce and Soybean Facilities, Related Topics)
       51.2   COAL OPERATIONS (Includes Cleaning, Preparation, Coal Refuse
              Disposal Areas, Coke Ovens, Charcoal Kilns, Related Topics)
       51.3   CONSTRUCTION (Includes Cement Plants. Materials Handling, Topics
              Related to Construction Industry)
       51.4   FERROUS FOUNDRIES (Includes Blast Furnaces, Related Topics)
       51.5   FUEL BURNING EQUIPMENT (coal, natural gas, oil) - Participates
              (Includes Fuel  Content and Other Related Topics)
       51.6   FUEL BURNING EQUIPMENT (coal, natural gas, oil) - S02 (Includes
              Fuel Content and Other Related Topics)
       51.7   FUEL BURNING EQUIPMENT (oil, natural gas. coal) - N02 (Includes
              Fuel Content and Other Related Topics;
       51.8   HOT MIX ASPHALT PLANTS
       51.9   INCINERATION
       51.10  NITRIC ACID PLANTS
       51.11  NON-FERROUS SMELTERS (Zn, Cu, etc.) - Sulfur Dioxide
       51.12  NUCLEAR ENERGY FACILITIES (Includes Related Topic)
       51.13  OPEN BURNING (Includes Forest Management, Forest F1re, F1re
              Fighting Practice, Agricultural Burning and Related Topics)
       51.14  PAPER PULP; WOOD PULP AND KRAFT MILLS (Includes Related Topics)
       51.15  PETROLEUM REFINERIES
       51.16  PETROLEUM STORAGE (Includes Loading, Unloading, Handling and
              Related Topics)
       51.17  SECONDARY METAL OPERATIONS (Includes Aluminum. Steel and Related
              Topics)
       51.18  SULFURIC ACID PLANTS
       51.19  SULFURIC RECOVERY OPERATIONS
       51.20  WOOD WASTE BURNERS
       51.21  MISCELLANEOUS TOPICS
                                        V11

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TABLE OF CONTENTS
Revised Standard
Subject Index
(2.0)
(1.0)
(15.0)
(15.0)
(3.0)
(2.0)
(2.0)
(3.0)
(3.0)
(3.0)
(3.0)
(9.0)
(3.0)
(3.0)
(3.0)
(3.0)
PLUMAS COUNTY
Rule Number
1
2
3
4
10
11
12
13
14
17
18
19
20
21
22
23
REGULATIONS

Title Page Number
Title
Definitions
Penalties for
Violations
Civil Penalties
Permits Required
Exemptions
Transfer
Time to Obtain
Permit to Operate
Applications
Cancellation of
Applications
Action on
Applications
Provisions of
Sampling and Testing
Facilities
Standards for
Granting Applications
Conditional Approval
Denial of
Applications
Further Information
1
1
4
5
5
7
12
12
13
13
13
13
13
14
15
15
        viii

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Revised Standard
Subject Index        Rule Number       Title              Page  Number
(3.0)                   24         Applications Deemed         15
                                   Denied
(3.0) (16.0)            25         Appeals                     15
(3.0)                   40         Permit Fees                 16
(16.0)                  42         Hearing Board Fees           16
(13.0)                  44         Technical Reports,           17
                                   Charges For
(50.1.2)                50         Visual Emission Standard    17
(2.0)                   51         Prohibited Emissions        17
(2.0)                   51.5       Separation of Emissions     17
(2.0)                   51.6       Combination of Emissions    18
(12.0)                  51.7       Emission Control For Used   18
                                   Motor Vehicles
(50.1.1)                52         Particulate Matter           18
(51.13)                 53         Open Fires                  20
(51.9)                  54         Incinerator Burning         20
(2.0)                   55         Exceptions                  20
(50.2)                  56         Sulfur Oxide Emissions       21
(50.2)                  57         Sulfide Emission Standard   22
(50.4                   57.5       Organic Solvents            23
(51.21)                 58         Reduction of Animal Matter  26
(7.0)                   59         Report of Breakdown         26
(2.0)                   60         Circumvention               27
(2.0)                   62         Review of Standards         27
                                       1x

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Revised Standard
Subject Index       Rule Number        Title              Page Number
(16.0)                  70         Appeals From Hearing       27
                                   Board
(2.0)                   75         General                    27
(2.0)                   76         Filing Petitions           27
(2.0)                   77         Contents of Petitions      28
(5.0)                   78         Petitions For Variance     29
(2.0)                   79         Appeal From Denial         30
(2.0)                   80         Failure to Comply With     30
                                   Rules
(2.0)                   82         Answers                    30
(2.0)                   83         Dismissal of Petition      30
(16.0)                  84         Place of Hearing           30
(16.0)                  85         Notice of Hearing          30
(2.0)                   86         Evidence                   30
(2.0)                   87         Preliminary Matters        31
(2.0)                   88         Official Notice            31
(2.0)                   89         Continuances               31
(2.0)                   90         Decision                   31
(2.0)                   91         Effective Date of          32
                                   Decision
(3.0)                   95         Lack of Permit             32

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                                 RULES AND  REGULATIONS OF THE

                                 PLUMAS  COUNTY AIR  POLLUTION

                                      CONTROL DISTRICT


                              REGULATION I  -  GENERAL  PROVISIONS

(2.0)    RULE 1   -   TITLE

        Pursuant to the provisions  of Chapter 2,  Division 20, of  the Health and
        Safety  Code of the  State  of California, the Air  Pollution Control Board
        of the  Plumas  County Air  Pollution  Control  District does  hereby enact the
        following  rules and regulations  to  be known as the Rules  and Regulations
        of the  Plumas  County Air  Pollution  Control  District.

(1.0)    RULE 2   -   DEFINITIONS

        Except  as  otherwise specifically provided in  these Rules  and Regulations,
        and except where  the context indicates otherwise, words used in these
        Rules and  Regulations are used in exactly the same sense  as the same words
        are used in Chapter 2, Division  20, of the  Health and Safety Code.

             (a)   AGRICULTURAL OPERATION.  "Agricultural operation" means the
                   growing  and harvesting of  crops, Including timber, or the rais-
                   ing of fowls,  animals or bees  as a gainful occupation.

             (b)   AIR CONTAMINANT.   "Air contaminant" includes smoke, dust, char-
                   red paper, soot,  grime,  carbon,  noxious acids, fumes, gases,
                   odors, or parti oil ate matter,  or any  combination thereof.

             (c)   AIR POLLUTION.   "Air  pollution"  means the presence in the out-
                   door atmosphere  of one or  more air contaminants in quantities,
                   characteristics,  or duration such  that they are or tend to be
                   injurious to human, plant  or animal life or to property, or
                   which  unreasonably interfere with  the enjoyment of life or
                   property.

             (d)   AIR POLLUTION  ABATEMENT  OPERATION. "Air pollution abatement
                   operation" means  any  operation which  has as its essential pur-
                   pose a significant reduction in  (a)   the emission of air con-
                   taminants or (b)   the effect of  such  emission.

             (e)   ALTERATION. "Alteration"  means  any addition to or enlargement
                   or  replacement of, or any  major  modification or change of the
                   design,  capacity,  process  or arrangement, or any increase in
                   the connected  loading of,  equipment or control apparatus which
                   will significantly increase or adversely affect the kind or
                   amount of air  contaminant  emitted.
                                             -1-

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(f)   ATMOSPHERE.  "Atmosphere" means the air that envelops or
      surrounds the earth.

(g)   BOARD.  "Board" means the A1r Pollution Control Board of the
      Air Pollution Control District of Plumas County.

(h)   COMBUSTIBLE WASTE.  "Combustible waste" is any solid or liquid
      combustible waste material containing carbon in a free or com-
      bined state.

(i)   COMBUSTION CONTAMINANTS.  "Combustion contaminants" are par-
      ticulate matter discharged into the atmosphere from the burning
      of any kind of material containing carbon in a free or combined
      state.

(j)   CONTROL OFFICER.  "Control Officer" means the Air Pollution
      Control Officer of the Air Pollution Control District of Plumas
      County.

(k)   DUSTS.  "Dusts" are minute solid particles released into the air
      by natural forces or by mechanical processes such as crushing,
      grinding, milling, drilling, demolishing, shoveling, conveying,
      covering, bagging, sweeping, etc.

(1)   EMISSION.  "Emission" means the act of passing into the atmos-
      phere an air contaminant or gas stream which contains an air
      contaminant, or the air contaminant so passed into the atmos-
      phere.

(m)   EMISSION POINT.  "Emission point" means the place, located in
      horizontal plane and vertical elevation, at which an emission
      enters the atmosphere.

(n)   EXCESS AIR.   "Excess air" means the quantity of air required
      for complete combustion.

(o)   HEARING BOARD.   "Hearing Board" means the Hearing Board of the
      Air Pollution Control District of Plumas County.

(p)   INCINERATION.  "Incineration" means an operation in which com-
      bustion is carried on for the principal purpose, or with the
      principal result, of oxidizing a waste material to reduce its
      bulk or facilitate its  disposal.

(q)   INSTALLATION.  "Installation" means the placement, assemblage
      or construction of equipment or control apparatus at the prem-
      ises where the  equipment or control apparatus will be used, and
      includes all preparatory work at such premises.
                                 -2-

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(r)   MULTIPLE CHAMBER INCINERATOR.   "Multiple chamber incinerator"
      means any incinerator consisting of three or more refractory-
      lined combustion chambers in series, physically separated  by
      refractory walls, interconnected by gas passage ports  or ducts
      and employing adequate design parameters necessary for maximum
      combustion of the material  to be burned.

(s)   OPEN OUTDOOR FIRE.  "Open outdoor fire" means the burning  of
      materials of any type outdoors in the open where the products
      of combustion are not directed through an acceptable duct  or
      passage for air, gases or the like, such as a stack or chimney.

(t)   OPERATION.  "Operation" means any physical action resulting  in
      a change in the location, form or physical properties  of a
      material, or any chemical action resulting in a change in  the
      chemical composition or the chemical or physical properties  of
      a material.

(u)   OVERFIRE AIR.  "Overfire air" means are introduced into a
      tepee burner or other type incineration device after the pri-
      mary combustion has occurred.

(v)   OWNER.  "Owner" includes but is not limited to any person  who
      leases, supervises or operates equipment.

(w)   PARTICULATE MATTER.  "Particulate matter" means discrete
      particles of liquid, other than water, or a solid, as  distin-
      guished from a gas or vapor.

(x)   PERSON OR PERSONS.  "Person or persons" means an individual,
      public or private corporation, political subdivision,  agency,
      board, department or bureau of the state, municipality, part-
      nership, firm, association, trust or estate, or any other
      legal entity whatsoever which 1s recognized in law as  the  sub-
      ject of rights and duties.

(y)   PROCESS WEIGHT PER HOUR.  "Process weight" is the total weight
      including contained moisture, of all materials introduced  in-
      to any specific process which process may cause any discharge
      into the atmosphere.  Solid fuels charged will be considered
      as part of the process weight, but liquid and gaseous  fuels
      and combustion air will not.  The "process weight per  hour"
      will be derived by dividing the total process weight by the
      number of hours in one complete operation from the beginning
      of any given process to the completion thereof, excluding  any
      time during which the equipment 1s idle.

(z)   PPM.  "PPM" means parts per million by volume (v/v) expressed
      on a dry gas basis.
                                 -3-

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             (aa)  REGULATION.   "Regulation" means one of the major subdivisions
                  of the Rules  of the Air Pollution Control District of Plumas
                  County.

             (bb)  RULE.  "Rule" means a rule of the Air Pollution Control Dis-
                  trict of  Plumas County.

             (cc)  SECTION.   "Section" means section of the Health and Safety
                  Code of the State of California unless some other statute is
                  specifically  mentioned.

             (dd)  STANDARD  CONDITION.  "Standard condition" as used in these
                  regulations,  refers to a gas temperature of 60 degrees Fahren-
                  heit and  a gas pressure of 14.7 pounds per square inch abso-
                  lute.  Results of all analyses and tests shall be calculated
                  or reported at this gas temperature and pressure.

             (ee)  STANDARD  CUBIC FOOT OF GAS.  "Standard cubic foot of gas"
                  means that amount of the gas which would occupy a cube having
                  dimensions of one foot on each side, if the gas were free of
                  water vapor and at a pressure of 14.7 P.S.I.A. and a tempera-
                  ture of 60 degrees F.

             (ff)  TEPEE BURNER.  "Tepee burner" means a burner of wood wastes,
                  consisting of a single burning chamber having the general
                  features  of a truncated cone, and generally used in conjunc-
                  tion with sawmills, lumber mills and similar activities.

             (gg)  TOTAL REDUCED SULFUR (TRS).  "TRS" means total reduced sulfur
                  contained in  hydrogen sulfide, mercaptans, dimethyl sulfide,
                  dimethyl  disulfide, or other organic sulfide compounds, all
                  expressed as  hydrogen sulfide.  Sulfide dioxide, sulfur tri-
                  oxide, or sulfuric acid mist are not to be Included in the
                  determination of TRS.

             (hh)  UNDERFIRE AIR.  "Underfire air" means air introduced into a
                  tepee burner  or other type incineration device beneath the
                  fuel pile or  into the primary combustion chamber.

             (ii)  CONDENSED FUMES.  "Condensed fumes" are particulate matter
                  generated by  the condensation of vapors evolved after vola-
                  tilization from the molten state, or may be generated by sub-
                  limation, distillation, calcination, or chemical reaction,
                  when these processes create airborne particles.

(15.0)  RULE  3  -  PENALTIES FOR VIOLATIONS

       Penalty actions for non-compliance with, or violation of, any rule of
       these rules and regulations will be instituted pursuant to the follow-
       ing provisions and further pursuant to the provisions of Chapter 2,
                                             -4-

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        Division 20 of the Health  and  Safety  Code  of  the  State of California.

             (a)   Every person  is guilty of  a  misdemeanor who knowingly makes
                   any false statement in any application for a  permit or  in any
                   information,  analyses, plans or specifications submitted either
                   in conjunction  therewith,  or at the  request of the Air  Pol-
                   lution Control  Officer.   (Section  24277).

             (b)   Every person  is guilty of  a  misdemeanor who builds, erects,
                   alters, replaces, uses,  or operates  any source capable  of
                   emitting air  contaminants  for which  a  permit  is  required by the
                   regulations of  the  Air Pollution Control District which his per-
                   mit so to do  has been  either suspended or revoked.  (Section
                   24278).

             (c)   Every person  required  by the regulations of the  Air Pollution
                   Control Board to obtain a  permit so  to do who, without  first
                   obtaining such  permit  builds, erects,  alters, replaces, uses,
                   or operates any source capable  of  emitting air contaminants,
                   is guilty of  a  misdemeanor (Section  24279).

             (d)   Every person  is guilty of  a  misdemeanor who builds, erects,
                   alters, or replaces, operates or uses  any such article, ma-
                   chine, equipment, or other contrivance contrary  to the  pro-
                   visions of any  permits issued under  these rules  and regula-
                   tions.  (Section 24280).

             (e)   Every person  violating any order,  rule, or regulation of the
                   Plumas County A1r Pollution  Control  District  is  guilty  of a
                   misdemeanor.  Every day during  any person of  which such a vio-
                   lation occurs is a  separate  offense.   (Section 24281).

(15.0)   RULE 4  -  CIVIL PENALTIES

        Pursuant to Section 24252  of the  Health and Safety Code  of  the State of
        California, any violation  of any  order, rule  or regulation  pf the  Plumas
        County Air Pollution Control Board  may  be  enjoined in a  civil action
        brought in the name of the people of  the State  of California.
                                   REGULATION II  -  PERMITS

(3.0)    RULE 10 -   PERMITS REQUIRED

             (a)    AUTHORITY  TO CONSTRUCT.   Before  any person  builds,  erects,
                   alters, replaces,  operates,  sells,  rents  or uses  any  article,
                   machine equipment  or other contrivance which may  cause  the
                   issuance of air contaminants or  the use of  which  may  eliminate
                   or reduce  or control  the  Issuance of air  contaminants,  such
                                               -5-

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      person shall obtain a written authority to construct from the
      A1r Pollution Control Officer.  A single authority to con-
      struct may be issued for all components of an intergrated sys-
      tem or process.  An authority to construct shall remain in ef-
      fect until the permit to operate the equipment for which the
      application was filed is granted or denied or the application
      is cancelled.

(b)   PERMIT TO OPERATE.  Before any article, machine, equipment or
      other contrivance described in Rule 10(a) (Authority to Con-
      struct) may be operated or used, a written permit shall be ob-
      tained from the Air Pollution Control Officer.  No permit to
      operate or use shall be granted either by the A1r Pollution
      Control Officer or the Hearing Board for any article, machine,
      equipment or contrivance described 1n Rule 10(a) (Authority
      to Construct), constructed or Installed without authorization
      as required by Rule 10(a) (Authority to Construct) until the
      information required is presented to the Air Pollution Control
      Officer and such article, machine, equipment or contrivance
      is altered, if necessary, and made to conform to the stand-
      ards set forth in Rule 20 and elsewhere in these Rules and
      Regulations.

(c)   REVIEW OF PERMITS.  The Air Pollution Control Officer may at
      any time require from an applicant for, or holder of, any
      authority to construct or permit to operate, such information,
      analyses, plans or specifications as will disclose the nature,
      extent, quantity or degree of air contaminants which are or
      may be discharged into the atmosphere.

(d)   POSTING OF PERMIT TO OPERATE.  A person who has been granted
      under Rule 10(b) a permit to operate any article, machine,
      equipment, or other contrivance described in Rule 10(b), shall
      firmly affix such permit to operate, an approved facsimile, or
      other approved identification bearing the permit number upon
      the article, machine, equipment, or other contrivance in such a
      manner as to be clearly visible and accessible.  In the event
      that the article, machine, equipment, or other contrivance is
      so constructed or operated that the permit to operate cannot be
      so placed, the permit to operate shall be mounted so as to be
      clearly visible in an accessible place within 25 feet of the
      article, machine, equipment, or other contrivance or maintained
      readily available at all times on the operating premises.

(e)   ALTERATION OF PERMIT.  A person shall not willfully deface,
      alter,  forge, counterfeit, or falsify any-permit issued under
      these Rules and Regulations.

(f)   CONTROL EQUIPMENT.  Nothing in this rule shall  be construed
      to authorize the Control Officer to require the use of
                                 -6-

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                   machinery,  devices,  or  equipment of a  particular type or design
                   if the  required  emission  standard may  be met by machinery, de-
                   vice, equipment,  product,  or  process change otherwise avail-
                   able.

(2.0)    RULE 11  -   EXEMPTIONS

        An authority to construct or a  permit to operate  shall not be  required or;

             (a)    Vehicles  as defined  by  the Vehicle Code of the State of Cali-
                   fornia  but  not including  any  article,  machine, equipment or
                   other contrivance mounted on  such vehicle that would otherwise
                   require a permit under  the provisions  of these Rules and Regu-
                   lations.

             (b)    Vehicles  used to transport passengers  or freight.

             (c)    Equipment utilized exclusively 1n connection with any struc-
                   ture which  1s designed  for and used exclusively as  a dwelling
                   for not more than four  families.

             (d)    The following equipment:

                   (1) Comfort air conditioning or comfort ventilating system
                       are  not designed to  remove air contaminants generated  by
                       or released from specific units or equipment.

                   (2) Refrigeration units  except those  used as, or in conjunc-
                       tion with,  air  pollution control  equipment.

                   (3) Piston type internal  combustion engines.

                   (4) Water  cooling towers and water cooling ponds not used  for
                       evaporative cooling  of process water or not used for
                       evaporative cooling  of water from barometric jets or from
                       barometric  condensers.

                   (5) Equipment used  exclusively for steam cleaning.

                   (6) Presses used exclusively for extruding metals, minerals,
                       plastics or wood.

                   (7) Equipment used  exclusively for space heating other than
                       boilers.

                   (8) Equipment used  for hydraulic or hydrostatic testing.

                   (9) All  sheet-fed printing presses and all other printing
                       presses using exclusively inks containing less than 10 per
                       cent organic solvents, diluents or thinners.
                                              -7-

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(10)  Ovens used exclusively for the curing of plastics which
      are concurrently being vacuum held to a mold or for the
      softening or annealing of plastics.

(11)  Equipment used exclusively for the dyeing or stripping
      (bleaching) of textiles where no organic solvents, dilu-
      ents or thinners are used.

(12)  Equipment used exclusively to mill or grind coatings and
      molding compound where all materials charged are in a
      paste form.

(13)  Crucible type or pot type furnaces with a brimful capac-
      ity of less than 450 cubic inches of any molten metal.

(14)  Equipment used exclusively for the melting or applying of
      wax where no organic solvents, diluents or thinners are
      used.

(15)  Equipment used exclusively for bonding lining to brake
      shoes.

(16)  Lint traps used exclusively in conjunction with dry clean-
      ing tumblers.

(17)  Equipment used exclusively to compress or hold dry natural
      gas.

(18)  Tumblers used for the cleaning or debarring of metal prod-
      uct without abrasive blasting.

(19)  Shell core and shell mold manufacturing machine.

(20)  Molds used for the casting of metals.

(21)  Abrasive blast cabinet-dust filter integral combination
      units where the total internal volume of the blast sec-
      tion is 50 cubic feet or less.

(22)  Batch mixers of five cubic feet rated working capacity or
      less.

(23)  Equipment used exclusively for the packaging of lubricants
      or greases.

(24)  Equipment used exclusively for the manufacture of water
      emulsions of asphalt, greases, oils or waxes.

(25)  Ovens used exclusively for the curing of vinyl  plastisols
      by the closed mold curing process.
                            -8-

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     (26)   Equipment used exclusively for conveying  and  storing
           plastic pellets.

     (27)   Equipment used exclusively for the  mixing and blending of
           materials at ambient temperature to make  water-based ad-
           hesives.

     (28)   Platen presses used for laminating.

(e)    The  following equipment or any exhaust system  or collector serv-
      ing  exclusively such equipment:

      (1)   Blast cleaning equipment using a suspension of abrasive
           in water.

      (2)   Ovens, mixers and blenders used in  bakeries where  the prod-
           ucts are edible and intended for human consumption.

      (3)   Kilns used for firing ceramic-ware, heated exclusively by
          .natural gas, liquefied petroleum gas,  electricity  or any
           combination thereof.

      (4)   Laboratory equipment used exclusively  for chemical or phy-
           sical analyses and bench scale laboratory equipment.

      (5)   Equipment used for inspection of metal products.

      (6)   Confection cookers where the products  are edible and in-
           tended for human consumption.

      (7)   Equipment used exclusively for forging, pressing,  rolling
           or drawing of metals or for heating metals immediately
           prior to forging, pressing, rolling or drawing.

      (8)   Die casting machines.

      (9)   Atmosphere generators used 1n connection  with metal heat
           treating processes.

     (10)   Photographic process equipment by which an image is re-
           produced upon material sensitized to radiant  energy.

     (11)   Brazing, soldering, or welding equipment.

     (12)   Equipment used exclusively for the  sintering  of glass or
           metals.

     (13)   Equipment using aqueous solutions for  surface preparation,
           cleaning, stripping, etching (does  not include chemical
           milling) or the electrolytic plating with, electrolytic
                                 -9-

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           polishing of, or the electrolytic stripping of brass,
           bronze, cadmium, copper, iron, lead, nickel, tin, zinc,
           and precious metals.

     (14)  Equipment used for washing or drying products fabricated
           from metal, cloth, fabric, or glass, provided that no oil
           or solid fuel is burned.

     (15)  Laundry dryers, extractors or tumblers used for fabrics
           cleaned only with water solutions of bleach or detergents.

     (16)  Foundry sand mold forming equipment to which no heat is
           applied.

     (17)  Ovens used exclusively for curing potting materials or
           castings made with epoxy resins.

     (18)  Equipment used to liquefy or separate oxygen, nitrogen or
           the rare gases from the air.

     (19)  Equipment used for compression molding and injection mold-
           ing of plastics.

     (20)  Mixers for rubber or plastics where no material in powder
           form is added and no organic solvents, diluents or
           thinners are used.

     (21)  Equipment used exclusively to grind, blend or package tea,
           cocoa, spices or roasted coffee.

     (22)  Equipment used exclusively to package Pharmaceuticals and
           cosmetics or to coat pharmaceutical tablets.

     (23)  Roll  mills or calenders for rubber or plastics where no
           organic solvents, diluents or thinners are used.

     (24)  Vacuum producing devices used in laboratory operations or
           in connection with other equipment which is exempt by
           Rule 11.

(f)   Steam generators, steam superheaters, water boilers, water heat-
      ers, and closed heat transfer systems that are fired exclusively
      with natural gas or liquified petroleum gas or any combination
      thereof.

(g)   Natural  draft hoods, natural draft stacks or natural draft
      ventilators where no organic solvents, diluents, or thinners
      are used.

(h)   Containers, reservoirs, or tanks used exclusively for:
                                -10-

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      (1)  Dipping operations  for coating  objects with oils, waxes,
           or greases  where no organic  solvents, diluents or thinners
           are used.

      (2)  Dipping operations  for applying coatings of natural or syn-
           thetic resins which contain  no  organic solvents.

      (3)  Storage of  liquified gases.

      (4)  Unheated storage or organic  materials with an initial
           boiling point of 300° F.  or  greater.

      (5)  The storage of fuel oils  and lubricating oils.

      (6)  The storage or organic liquids, including gasoline, nor-
           mally used  as solvents, diluents or thinners, inks, color-
           ants, paints, lacquers, enamels, varnishes, liquid resins
           of other surface coatings.

      (7)  The storage of liquid soaps, liquid detergents, waxes,
           wax emulsions, or vegetable  oils.

      (8)  The storage of asphalt.

      (9)  Unheated solvent dispensing  containers, unheated non-
           conveyorized solvent rinsing containers or unheated non-
           conveyorized coating dip  tanks  of 1,000 gallons capacity
           or less.

     (10)  Transporting materials on streets or  highways.

(i)   Natural gas-fired or liquefied petroleum gas-fired or electric-
      ally heated furnaces for heat  treating glass or metals, the use
      of which does not Involve molten  materials.

(j)   Crucible furnaces, pot furnaces or induction furnaces, with a
      capacity of 1,000 pounds or less  each, in  which no sweating
      or distilling is conducted and from  which  only the following
      metals are poured or in  which  only the follwing metals are held
      in a molten state.

      (1)  Aluminum or any alloy containing over 50% aluminum.

      (2)  Magnesium or any alloy containing over 50% magnesium.

      (3)  Lead or any alloy containing over 50% lead.

      (4)  Tin or any  alloy containing  over 50%  tin.

      (5)  Zinc or any alloy containing over 50% zinc.
                                -11-

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                   (6)  Copper.

                   (7)  Precious metals.

             (k)   Vacuum cleaning systems used exclusively for industrial,  com-
                   mercial or residential  housekeeping purposes.

             (1)   Structural changes which cannot change the quality,  nature or
                   quantity of air contaminant emissions.

             (m)   Repairs or maintenance  not involving structural  changes to any
                   equipment for which a permit has been granted.

             (n)   Identical replacements  in whole or in part of any article, ma-
                   chine, equipment or other contrivance where a permit to operate
                   had previously been granted for such equipment under Rule 10.

        Atomic energy development and radiation protection are controlled by the
        State of California to the extent  it has jurisdiction thereof,  in accord-
        ance with the advice and recommendations made to the Governor by the Ad-
        visory Council on Atomic Energy Development and Radiation Protection.
        Such development and protection are fully regulated by the  United States
        Atomic Energy Commission to the extent that such authority  has  not been
        delegated to  the states.

(2.0)   RULE 12 -  TRANSFER

        Any permit or written authorization issued hereunder shall  not  be trans-
        ferable, by operation of law or otherwise, from one location to another,
        from one piece of equipment to another, or from one person  to another.

(3.0)   RULE 13 -  TIME TO OBTAIN PERMIT TO OPERATE

        Notwithstanding the provisions of  Rule 10 requiring a permit to operate,
        a  person who, prior to June 1, 1971, operated or used any article, ma-
        chine, equipment, or other contrivance in compliance with all laws,  stat-
        utes, and ordinances, for the operation and use of which these  Rules and
        Regulations require a permit to operate, may continue to operate or  use
        such article, machine, equipment or contrivance until  July  1, 1972,  with-
        out obtaining a permit to operate.

        On and after  July 1, 1972,  no person shall  operate or use any article,
        machine, equipment, or other contrivance, for the use of which  these Rules
        and Regulations require  a permit to operate, without having obtained
        said permit to operate or having secured a variance from the Hearing
        Board pursuant to Regulation V of  these Rules and Regulations;   provided,
        however it is the policy of this Board that all  persons should  bring
        their processes into compliance with these permit requirements  within
        the time specified by the Hearing  Board.
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(3.0)    RULE 14 -   APPLICATIONS

        Every application  for an  authority  to  construct or any permit required
        under Rule 10 shall  be filed  in  the manner  prescribed by the Air Pollution
        Control  Officer, on  a form prescribed  by the Air  Pollution Control Officer,
        and shall  give all the information  necessary to enable the Air Pollution
        Control  Officer to make the determination required by Rule 20 hereof.

(3.0)    RULE 17 -   CANCELLATION OF APPLICATIONS

        An authority to construct shall  expire and  the application shall be can-
        celled one year from the  date of issuance of the  authority to construct;
        provided,  however, that when  a period  of longer than one year is stated
        in the application to be  required for  the construction, the authority to
        construct  shall expire and the application  shall  be cancelled upon the
        expiration of such construction  period,  but in any event not later than
        five years from the  date  of issuance of  the authority to construct.

(3.0)    RULE 18 -   ACTION  ON APPLICATIONS

        The Air Pollution  Control Officer shall  act within 60 days on an appli-
        cation for authority to construct,  or  permit to operate or permit to sell
        or rent, as stated in Section 24263 of the  Health and Safety Code, and
        shall notify the applicant in writing  by mail or  in person of the action
        taken;  namely, approval, conditional  approval, or denial.  Notice of the
        action taken shall be deemed  to  have been given when the written notifi-
        cation has been deposited in  the mail, postpaid,  addressed to the address
        shown on the application, or  when personally delivered to the applicant
        or his representative.

(9.0)    RULE 19 -   PROVISIONS OF  SAMPLING AND  TESTING FACILITIES

        A person operating or using any  article, machine, equipment, or other
        contrivance for which these rules require a permit shall provide and
        maintain such sampling and testing  facilities as  specified in the authori-
        ty to construct or permit to  operate.

(3.0)    RULE 20 -   STANDARDS FOR  GRANTING APPLICATIONS

             (a)   The Air Pollution  Control Officer shall deny an authority to
                   construct, permit  to  operate  or  use, or permit to sell or rent;
                   except  as provided in Rule  21, if the  applicant does not show
                   that every article, machine,  equipment or other contrivance,
                   the use of which may  cause  the issuance of air contaminants or
                   the use of which may  eliminate or reduce or control the issu-
                   ance of air contaminants, is  so  designed, controlled, or equip-
                   ped with  such  air  pollution control equipment that it may be
                   expected  to operate without emitting air contaminants in vio-
                   lation  of Section  24242  or  24243, Health and Safety Code, or of
                   these Rules and Regulations.
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             (b)    Before an authority to construct  or a  permit  to  operate  is
                   granted,  the Air Pollution Control  Officer may require the  ap-
                   plicant to provide and maintain such facilities  as are neces-
                   sary for sampling and testing  purposes in  order  to secure in-
                   formation thit will  disclose the  nature, extent,  quantity or
                   degree of air contaminants discharged  into the atmosphere from
                   the article, machine, equipment or  other contrivance  described
                   in the authority to construct  or  permit to operate.   In  the
                   event of such a requirement, the  Air Pollution Control Officer
                   shall  notify the applicant in  writing  of the  required size,
                   number and location of sampling holes; the size and  location
                   of the sampling platform;   the access  to the  sampling platform;
                   and the utilities for operating the sampling  and  testing equip-
                   ment.   The platform and access shall be constructed in accord-
                   ance with the General Industrial  Safety Orders of the State of
                   California.

             (c)    In acting upon a permit to operate, if the Air Pollution Con-
                   trol  Officer finds that the article, machine, equipment  or
                   other contrivance has not  been constructed in accordance with
                   the authority to construct, he shall deny  the permit  to  oper-
                   ate.   The Air Pollution Control Officer shall not accept any
                   further application for permit to operate  the article, machine,
                   equipment or other contrivance so constructed until he finds
                   that the  article, machine,  equipment or other contrivance has
                   been constructed in accordance with the authority to  construct.

(3.0)    RULE 21  -   CONDITIONAL  APPROVAL

             (a)    The Air Pollution Control  Officer may  issue an authority to
                   construct or a permit to operate  or use, subject  to conditions
                   which  will bring the operation of any  article, machine,  equip-
                   ment or other contrivance  within  the standards of Rule 20,  in
                   which  case the conditions  shall be  specified  in writing.  Com-
                   mencing work under such an authority to construct or  operation
                   under  such a permit to operate shall be deemed acceptance of
                   all  the conditions so specified.  The  Air  Pollution Control
                   Officer shall  issue an authority  to construct or  permit  to  op-
                   erate  with revised conditions  upon  receipt of a  new application,
                   if the applicant demonstrates  that  the article, machine, equip-
                   ment or other contrivance  can  operate  within  the  standards  of
                   Rule 20 under the revised  conditions.

             (b)    The Air Pollution Control  Officer may  Issue a permit  to  sell or
                   rent,  subject to conditions which will  bring  the  operation  of
                   any article,  machine, equipment or  other contrivance  within the
                   standards  of Rule 20, in which case the conditions shall be
                   specified  in  writing.   Selling or renting  under  such  a permit
                   to sell or rent shall  be deemed acceptance of all the condi-
                   tions  so  specified.   The Air Pollution Control Officer shall
                                            -14-

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                   issue a  permit to sell  or rent  with  revised conditions upon
                   receipt  of a new application, if  the applicant  demonstrates
                   that the article, machine, equipment or  other contrivance can
                   operate  within the standards of Rule 20  under the  revised con-
                   ditions.

(3.0)   RULE 22 -  DENIAL OF APPLICATIONS

        In the event of denial  of an authority to  construct,  permit to  operate  or
        permit to sell  or rent, the Air Pollution  Control Officer  shall  notify
        the applicant in writing of the reasons therefor.   Service of this  noti-
        fication may be made in person or  by mail, addressed  to the applicant at
        the address set forth on the application,  and such  service may  be proved
        by the written  acknowledgement of  the persons served  or affidavit of the
        person making the service.   The Air Pollution Control Officer shall not
        accept a further application unless the applicant has complied  with the
        objections specified by the Air Pollution  Control Officer  as  his reasons
        for denial of the authority to construct,  the permit  to operate or  the
        permit to sell  or rent.

(3.0)   RULE 23 -  FURTHER  INFORMATION

        Before acting on an application for authority to construct, permit  to
        operate or permit to sell or rent, the Air Pollution  Control  Officer may
        require the applicant to furnish further information  or further plans or
        specifications.

(3.0)   RULE 24 -  APPLICATIONS DEEMED DENIED

        The applicant may at his option deem the authority  to construct, permit
        to operate or permit to sell or rent denied  if  the  Air Pollution Control
        Officer fails to act on the application within  60 days after  filing, or
        within 30 days  after applicant furnishes the further  information, plans
        and specifications  requested by the Air Pollution Control  Office, which-
        ever is later.

(3.0)   RULE 25 -  APPEALS
(16.0)
        Within 10 days  after notice by the Air Pollution Control Officer of denial
        or conditional  approval of an authority to construct, permit  to operate
        or use or permit to sell or rent,  or within  10  days after  the application
        is deemed denied pursuant to Rule  24, the  applicant may petition the Hear-
        ing Board, in writing,  for a public hearing.  The Hearing  Board, after
        notice and a public hearing held within 30 days after filing  the petition,
        may sustain, reverse or modify the action  of the Air  Pollution  Control
        Officer;  such  order may be made subject to  specified conditions.
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                                    REGULATION III  - FEES

(3.0)   RULE 40 -  PERMIT FEES

        The term fees used herein means fees as set forth on the schedule adopted
        by the Air Pollution Control  Board.

        Every applicant, except any state or local  governmental  agency or public
        district, who applies for an authority to construct or a permit to oper-
        ate any article, machine, equipment  or other contrivance for which an
        authority to construct or permit to  operate is required by the State law
        or by the Rules and Regulations of the Air  Pollution Control  District,
        shall pay a filing fee.  Where an application is filed for a permit to  op-
        erate any article, machine, equipment or other contrivance by reason of
        transfer from one person to another, and where a permit to operate had
        previously been granted under Rule 10 and no alteration, addition or
        transfer of location has been made,  the applicant shall  pay a filing fee.

        Where a single permit to operate has been granted under Rule 10, and where
        the Air Pollution Control Officer would have issued separate or revised
        permits for each permit unit included in the original  application, the  Air
        Pollution Control Officer may issue  such separate or revised permits with-
        out fees.

        A request for a duplicate permit to  operate shall  be made in writing to
        the Air Pollution Control Officer within 10 days after the destruction,
        loss or defacement of a permit to operate.   A fee shall  be charged, ex-
        cept to any state or local  governmental agency or public district for
        issuing a duplicate permit to operate.

(16.0)   RULE 42 -  HEARING BOARD FEES

             (a)    Every applicant or petitioner for variance, or for the exten-
                   sion, revocation or modification of a variance, or for an ap-
                   peal from a denial or conditional approval  of an authority to
                   construct, permit to operate or  permit to sell or rent, ex-
                   cept any state or local governmental  agency or public district,
                   shall pay to the Clerk of the Hearing Board,  on filing, a fee.
                   It is hereby determined that the cost of administration of
                   Article 5, Chapter 2, Division 20, Health and Safety Code or
                   Rule 25 of these Rules and Regulations, exceeds the fee set  by
                   the fee schedule.

             (b)    Any person requesting a transcript of the hearing shall pay  the
                   costs of such transcript.

             (c)    This rule shall  not apply to petitions filed  by the Air Pol-
                   lution Control Officer.
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 (13.0)  RULE 44 -  TECHNICAL  REPORTS,  CHARGES  FOR

         Information,  circulars,  reports  of technical work,  and other  reports pre-
         pared by the  Air Pollution Control  District, when supplied  to other gov-
         ernmental agencies or individuals  or groups requesting copies of  the same,
         may be charged for by the District in  a sum not to  exceed the cost or pre-
         paration and  distribution of such  documents.  All such monies collected
         shall be deposited with  the Treasurer  of the County of Plumas.
                                  REGULATION IV  -  PROHIBITIONS

(50.1.2) RULE 50 -   VISUAL EMISSION STANDARD

         In accordance with Section 24242,  Chapter 2,  Division  20,  Article  3,  of
         the California State Health and Safety  Code,  a  person  shall  not  discharge
         into the atmosphere from any single source of emission whatsoever  any air
         contaminant for a period or periods aggregating more than  three  minutes
         in any one hour which is:

              (a)   As dark or darker in shade as  that designated as  Number 2  on
                    the Ringelmann Chart, as published by the United  States Bureau
                    of Mines, or

              (b)   Of such opacity as to obscure  an observer's view  to a degree
                    equal  to or greater than does  smoke  described in  subsection
                    (a) of this rule.

              (c)   This rule shall not apply when the presence of  uncombined
                    water is the only reason for the failure of the emission to
                    meet the requirements of this  rule.

(2.0)     RULE 51 -   PROHIBITED EMISSIONS

         A person shall not discharge from  any source  whatsoever such quantities
         of air contaminants or other material which cause injury,  detriment,
         nuisance or annoyance to any considerable number of persons  to to  the pub-
         lic or which endanger the comfort, repose, health or safety  of any such
         persons or the public or which cause or have  a  natural tendency  to cause
         injury or  damage to business or property.

(2.0)     RULE 51.5   SEPARATION OF EMISSIONS

         If air contaminants from a single  source  operation are emitted through
         two or more emission points,  the total  emitted  quantity of any air con-
         taminant,  limited in this Regulation cannot exceed the quantity  which
         would be the allowable emission through a single emission  point;  and the
         total  emitted quantity of any such air  contaminant shall be  taken  as  the
         product of the highest concentration measured in any of the  emission
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         points and the exhaust gas volume through all  emission points,  unless  the
         person responsible for the source operation establishes the correct total
         emitted quantity.   Source operation means the  last operation preceding
         the emission of an air contaminant, which operation (a)  results  in the
         separation of the  air contaminant from the process materials or in  the
         conversion of the  process materials into air contaminants,  as in  the case
         of combustion of fuel;  and (b)   is not an air pollution abatement  opera-
         tion.

(2.0)    RULE 51.6  COMBINATION OF EMISSIONS

              (a)   If air  contaminants from two or more source operations are  com-
                    bined prior to emissions and there  are adequate  and  reliable
                    means reasonably susceptible to confirmation and use by  the
                    control officer for establishing a  separation of the components
                    of the  combined emission to indicate the nature, extent, quan-
                    tity and degree of emission arising from each such source
                    operation, this Regulation shall apply to each such  source
                    operation separately.

              (b)   If air  contaminants from two or more source operations are  com-
                    bined prior to emission, and the combined emissions  cannot  be
                    separated according to the requirements of Rule  51.6(a), this
                    Regulation shall  be applied to the  combined emission as  if  it
                    originated in a single source operation subject  to the most
                    stringent limitations  and requirements placed by this  Regula-
                    tion on any of the source operations whose air contaminants
                    are so  combined.   Source operation  means the last operation
                    preceding the emission of an air contaminant, which  operation
                    (a)  results in the separation of the air contaminant  from
                    the process materials  or in the conversion of the process ma-
                    terials into air contaminants, as in the case of combustion of
                    fuel;  and (b)  is not an air pollution abatement operation.

(12.0)    RULE 51.7  EMISSION CONTROL FOR USED MOTOR VEHICLES

         Each 1955 through  1962 model  year used car in  the District  shall  be re-
         quired to be equipped with an approved crankcase emission control device
         at the time of transfer of ownership.

(50.1.1)  RULE 52 -  PARTICULATE MATTER

              (a)   A person shall  not discharge combustion contaminants into the
                    atmosphere from any emission point  in excess of  .01944 grams
                    per cubic foot of gas  at standard conditions when measured  at
                    the point of discharge.

              (b)   A person shall  not discharge in any one hour from any  source
                    whatsoever dust or condensed fumes  in total  quantities in ex-
                    cess of the amount shown in Table I.
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                                   TABLE I

                     MAXIMUM ALLOWABLE RATE OF EMISSION
                        BASED ON PROCESS WEIGHT RATE
                                           Maximum Allowable
          Process Weight                  Particulate Emission
            (Lb./Hr.)                          (Lb./Hr.)~

                100                               0.6
                300                               1.2
                500                               1.8
                700                               2.2
              1,000                               2.8
              2,000                               4.1
              3,000                               5.4
              4,000                               6.5
              5,000                               7.6
              6,000                               8.6
              7,000                               9.5
              8,000                              10.4
              9,000                            .  11.2
             10,000                              12.0
             15,000                              15.8
             20,000                              19.2
             30,000                              25.2
             40,000                              30.5
             50,000                              36.0
             60,000 and over                     40.0


Where the process weight per hour is between two listed figures, such
process weight and maximum allowable particulate emission per hour shall
be interpolated accordingly.  The total process weight of all similar
process operations located at a single plant or of multiple plants lo-
cated on a single premise shall be used for determining the maximum allow-
able particulate emission from the combustion of such operations.

To use Table I, take the process weight per hour as such is defined in
Rule 2 (y).  Then find this figure on the table, opposite which is the
maximum number of pounds of contaminants which may be discharged into the
atmosphere in any one hour.  As an example, if A has a process which emits
1,500 pounds of contaminants into the atmosphere and the process takes
three hours to complete, he will divide the weight of all materials in the
specific process (in this example, 1,500 pounds ? by three, giving a proc-
ess weight per hour of 500 pounds.  The table shows that A may not dis-
charge more than 1.8 pounds in any one hour during the process,  where the
process weight per hour falls between figures in the left-hand columns,
                                     -19-

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         the exact weight of permitted discharge may be interpolated.

(51.13)  RULE 53 -  OPEN FIRES

              (a)   No person shall  ignite or cause to be ignited,  permit to be
                    ignited or suffer, allow or maintain any open fire except the
                    following:

                    (1)  Fires used  only for the cooking of food for human beings
                         or for recreational purposes.

                    (2)  Fires coming within the provisions of Section 24245 of
                         the Health  and Safety Code of the State of California as
                         it now is or as it may be amended hereafter.   Includes
                         back yard incinerator for one and two family  dwelling on
                         its premises as stated in 39297.2 Health and  Safety Code.

                    (3)  Fires used  in agricultural operation.

                    (4)  Fires used  in connection with any structure designed for
                         and used exclusively as a dwelling.

                    (5)  Fires for which a permit has been granted  by  the Air Pol-
                         lution Control  Officer pursuant to Rule 10 of these regu-
                         lations.

              (b)   Nothing in this  regulation shall  be construed as permitting
                    any fires otherwise prohibited by law, and nothing 1n this
                    regulation shall  be construed as  prohibiting any fire other-
                    wise required by law.

(51.9)    RULE 54 -  INCINERATOR BURNING

         No person shall  ignite,  or  cause to be ignited, permit to  be  ignited or
         suffer, allow or maintain any ignited combustible refuse in any incin-
         erator  unless such operation meets the requirements specified in these
         Rules and Regulations, excluding backyard incinerators for one and two
         family  dwellings.

(2.0)     RULE 55 -  EXCEPTIONS

         The provisions of Rule 50 and 52 do not apply to:

              (a)   Smoke from fires  set by or permitted by any public officer if
                    such fire is  set  or permission given 1n the performance of the
                    official  duty of such officer and such fire in  the opinion of
                    such officer  is  necessary:

                    (1)  For the  purpose of the prevention of a fire hazard which
                         cannot be abated by any other means, or
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                    (2)   For  the  instruction  of  public employees  in the methods of
                         fighting fire.

              (b)    Smoke from fires  set pursuant  to  permit on  property used for
                    industrial  purposes  for the  purpose  of instruction of employ-
                    ees  in methods of fighting fire.

              (c)    Smoke from burning for which a permit has been  issued by the
                    Air  Pollution Control  Officer.

              (d)    Agricultural  operations in the growing of crops or raising of
                    fowls, animals, or bees.

              (e)    The  use of other  equipment in  agricultural  operations in the
                    growing of crops, or raising of fowls, animals  or bees.

(50.2)    RULE 56 -   SULFUR OXIDE  EMISSIONS

              (a)    A person  shall not discharge into the atmosphere from any
                    single source of  emissions whatsoever sulfur  oxides, calcu-
                    lated as  sulfur dioxide (S02),  in excess of 1,000 ppm.

              (b)    It shall  be unlawful for  any person  to cause  or permit  the
                    emission  of sulfur dioxide from any  premises  which will result
                    in concentrations and time durations at ground  level that ex-
                    ceed those shown  in  the following table:

                                                         ••^
                                           TABLE  II

                               MAXIMUM  ALLOWABLE  SULFUR DIOXIDE
                                  GROUND-LEVEL CONCENTRATIONS


                    Concentration                    Time Duration

                        0.5  ppm                          1 hour
                        0.04  ppm                         24 hours

                    * Parts  per  million by volume.

              (c)    Any  person demonstrated by the Control Officer  to be emitting.
                    sulfur oxides resulting in ground-level concentrations  and du-
                    rations in excess of Table II  above  shall be  required to in-
                    stall and continuously operate recording instruments in at
                    least three locations surrounding the emission  point.   Such
                    locations are to  be  approved by the  Control Officer.
                                              -21-

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              (d)    Such  person  shall  provide  to  the  Control  Officer  a  summary of
                    the date  obtained  from such instruments during  each calendar
                    month.  The  form of presentation  of the data will be  specified
                    by the  Control  Officer.

(50.2)    RULE 57  -   SULFIDE EMISSION STANDARD

              (a)    A person  shall  not discharge  total  reduced  sulfur,  (TRS), as
                    defined in Rule (gg),  into the  atmosphere from  any  single emis-
                    sion  point in excess of the total daily weight  calculated by
                    the formula:

                                TRS (pounds  per day)  =  0.012  (Hs)2

                    where Hs  is  the height in  feet  of the emission  point  above
                    Mean  Ground  Elevation.   Mean  Ground Elevation shall be computed
                    as the  arithmetic  average  of  the  highest  and lowest ground-
                    level elevations within  a  1,000 yard radius of  the  emission
                    point.  In no case is  the  lowest  ground level elevation to be
                    less  than mean  sea level.

                    Effective January  1, 1972, a  person shall not discharge total
                    reduced sulfur  (TRS),  as defined  in Rule  2  (gg),  into the at-
                    mosphere  from any  single emission point at  a concentration ex-
                    ceeding 60 parts per million  by volume, or  in excess  of the
                    total daily  weight calculated by  the formula:

                                TRS (pounds  per day)  =  0.012  (Hs)2

                    whichever, is the  more restrictive  condition, where H is the
                    height  in feet  of  the  emission  point above  Mean Ground Ele-
                    vation, Mean Ground Elevation shall  be computed as  the arith-
                    metic average of the highest  and  lowest ground-level  elevations
                    within  a  1,000-yard radius of the emission  point.   In no case
                    is the  lowest ground-level elevation to be  less than  mean sea
                    level.

              (b)    In any  intergrated manufacturing  facility designed  for con-
                    version of wood materials  into  pulp and/or  paper, the total
                    maximum allowable  monthly  TRS emissions released  to the at-
                    mosphere  must not  exceed one  pound  of TRS per ton of  dry wood
                    charged into the conversion process.  Wood  materials  used ex-
                    clusively for fuel  are not to be  considered as  charge to the
                    conversion process.

                    Effective January  1, 1972, the  total maximum allowable monthly
                    TRS emissions released to  the atmosphere  must not exceed 0.8
                    pounds  of TRS per  ton  of dry  wood charged into  the  conversion
                    process.
                                             -22-

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              (c)    It  shall  be  unlawful  for any person to cause or permit the
                    emission  of  air  contaminants from any premises which will re-
                    sult  in ground-level  concentrations of TRS, expressed as hy-
                    drogen sulfide,  in excess of 0.03 ppm for a period of 60 min-
                    utes.

              (d)    A person  complying with the requirements of Rule 57 (a) and re-
                    leasing in excess of  100 pounds  per day of TRS from a single
                    emission  point shall  be required to provide, install, maintain
                    and continuously operate a recording instrument at such emis-
                    sion  point which will  record the concentrations of TRS emis-
                    sions.

              (e)    Where the Control Officer demonstrates by standarized analyt-
                    ical  chemistry procedures that the requirements of Rule 57  (c)
                    have  been violated on at least three separate occasions within
                    a one-month  period, the person causing said violation shall
                    provide,  install, maintain and operate a recording instrument,
                    located at ground level, which will monitor the TRS concentra-
                    tion  at the  property  limits.  Location of said monitoring in-
                    strument  is  to be approved by the Control Officer.

              (f)    Emissions exceeding the limits established by Rule 57 (c)
                    shall not constitute  a violation provided such emissions, from
                    the emission point to the point  of such concentration, are  on
                    the property controlled by the person responsible for such
                    emissions.

              (g)    A summary of the data obtained under the provisions of Rule 57
                    (b),  Rule 57 (d), and Rule 57 (e), if applicable, shall be
                    submitted to the Control Officer once each calendar month no
                    later than the fifteenth day of  the following calendar month.
                    This  summary shall be presented  in the manner and form as
                    prescribed by the Air Pollution  Control Officer.
(50.4)    RULE  57.5  ORGANIC  SOLVENTS
              (a)    A person  shall  not discharge more than  15  pounds  of organic
                    materials into  the atmosphere in  any one day from any article,
                    machine,  equipment or other contrivance in which  any organic
                    solvent or any  material  containing organic solvent comes  into
                    contact with  flame or is baked, heat-cured or heat-polymerized,
                    in the presence of oxygen,  unless all organic materials dis-
                    charged from  such  article,  machine, equipment or  other con-
                    trivance  have been reduced  either by at least 85  per cent
                    overall or to not  more than 15 pounds in any one  day.

              (b)    A person  shall  not discharge more than  40  pounds  of organic
                    material  into the  atmosphere 1n any one day from  any article,
                    machine,  equipment or other contrivance used under conditions
                                              -23-

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      other than described in Section (a), fpr employing,  applying,
      evaporating or drying any photochemically reactive solvent,  as
      defined in Section (k), or material  containing such  solvent,
      unless all organic materials discharged from such article, ma-
      chine, equipment or other contrivance have been reduced either
      by at least 85 per cent overall or to not more than  40 pounds
      in any one day.

(c)   Any series of articles, machines,  equipment or other contriv-
      ances designed for processing a continuously moving  sheet, web,
      strip or wire which is subjected to any combination  of opera-
      tions described in Sections (a) or (b) involving any photo-
      chemically reactive solvent, as defined in Section (k), or
      material containing such solvent,  shall be subject to compli-
      ance with Section (b).  Where only non-photochemically react-
      ive solvents or material containing only non-photochemically
      reactive solvents are employed or applied, and where any por-
      tion or portions of said series of articles, machines, equip-
      ment or other contrivances involves operations described in
      Section (a), said portions shall  be collectively subject to
      compliance with Section (a).

(d)   Emissions of organic materials to the atmosphere from the
      clean-up with photochemically reactive solvents, as  defined  in
      Section (k), of any article, machine, equipment or other con-
      trivance described in Sections (a),  (b) or (c), shall  be in-
      cluded with the other emissions of organic materials from that
      article, machine, equipment or other contrivance for determin-
      ing compliance with this rule.

(e)   Emissions of organic materials to  the atmosphere as  a result
      of spontaneously continuing drying of products for the first
      12 hours after their removal from any article, machine, equip-
      ment or other contrivance described 1n Sections (a), (b) or
      (c), shall be included with other emissions of organic mate-
      rials from that article, machine,  equipment or other contriv-
      ance for determining compliance with this rule.

(f)   Emissions of organic materials into the atmosphere required  to
      be controlled by Sections (a), (b) or (c), shall be  reduced  by:

      (1)  Incineration, provided that 90 per cent or more of the
           carbon in the organic material  being incinerated is oxi-
           dized to carbon dioxide, or

      (2)  Absorption, or

      (3)  Processing in a manner determined by the Air Pollution
           Control Officer to be not less  effective than (1) or (2)
           above.
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(g)   A person incinerating,  absorbing,  or otherwise  processing
      organic materials pursuant to this rule  shall provide, proper-
      ly install  and maintain in calibration,  in  good working order
      and in operation, devices as specified in the authority to
      construct or the permit to operate, or as specified  by the Air
      Pollution Control Officer, for indicating temperatures, pres-
      sures, rates of flow or other operating  conditions necessary
      to determine the degree and effectiveness of air pollution
      control.

(h)   Any person using organic solvents  or any material containing
      organic solvents shall  supply the  Air Pollution Control Of-
      ficer, upon request and in the manner and form  prescribed by
      him, written evidence of the chemical composition, physical
      properties and amount consumed for each  organic solvent used.

(i)   The provisions of this rule shall  not apply to:

      (1)  The manufacture of organic solvents, or the transport or
           storage of organic solvents or materials containing or-
           ganic solvents.

      (2)  The use of equipment for which other requirements are
           specified by the Rules or which are exempt from air pol-
           lution control requirements by said rules.

      (3)  The spraying or other employment of insecticides, pesti-
           cides or herbicides.

      (4)  The employment, application,  evaporation or drying of
           saturated halogenated hydrocarbons  or  perchloroethylens.

(j)   For the purpose of this rule, a photochemically reactive sol-
      vent and thinners are defined as organic materials which are
      liquids at standard conditions and which are used as dissolv-
      ers, viscosity reducers or cleaning agents.

(k)   For the purpose of this rule, a photochemically reactive sol-
      vent is any solvent with an aggregate of more than 20 per cent
      of its total volume composed of the chemical compounds classi-
      fied below or which exceeds any of the following individual
      percentage composition limitations, referred to the  total vol-
      ume of solvent:

      (1)  A combination of hydrocarbons, alcohols, aldehydes, esters,
           ethers or ketones having an olefinic or cyclo-olefinic
           type of unsaturation:  5 percent;

      (2)  A combination of aromatic compounds with eight  or more
           carbon atoms to the molecule  except ethyl benzene:  8 per-
           cent;
                                -25-

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                    (3)  A combination of ethyl benzene,  ketones having  branched
                         hydrocarbon structures, trichloroethylene or toluene:   20
                         percent.

                    Whenever any organic solvent or any  constituent of  an  organic
                    solvent may be classified from its chemical structure  into
                    more than one of the above groups of organic compounds,  it
                  '  shall  be considered as a member of the most reactive chemical
                    group, that is, that group having the least allowable  percent
                    of the total  volume of solvents.

              (1)   For the purpose of this rule, organic materials are defined  as
                    chemical compounds of carbon excluding carbon monoxide,  carbon
                    dioxide, carbonic acid, metallic carbides,  metallic carbonates
                    and ammonium carbonate.

              (m)   This rule shall be effective on the  date  of its adoption as  to
                    any article,  machine, equipment or other  contrivance,  not then
                    completed and put into service.  As  to all  other articles, ma-
                    chines, equipment or other contrivances,  this rule  shall be
                    effective:

                    (1)  On July  1, 1971, for those subject to  compliance  with Sec-
                         tion (a), and emitting  15 pounds or  more in any one day.

(51.21)   RULE 58 -  REDUCTION OF  ANIMAL MATTER

         A person shall not operate or use any article,  machine,  equipment or other
         contrivance for the reduction of animal  matter  unless  all  gases,  vapors
         and gas-entrained effluents from such an article, machine, equipment or
         other contrivance are:

              (a)   Incinerated at temperatures  of not less than 1,200  degrees
                    Fahrenheit for a period of not less  than  0.3 second, or

              (b)   Processed in  a manner determined by  the Air Pollution  Control
                    Officer to be  equally, or more, effective for the purpose of
                    air pollution  control than (a) above.

         For the purpose of this  rule, "reduction" is defined as  any heated  process,
         including rendering, cooking, drying, dehydrating, digesting,  evaporating
         and protein concentrating.
(7.0)
RULE 59 -  REPORT OF BREAKDOWN

Emissions exceeding any of the limits established by Regulation IV as a
direct result of unavoidable upset conditions or unforeseeable breakdown
of equipment or control apparatus shall not be deemed in violation provid-
ed the following requirements are met:
                                              -26-

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              (a)   The upset or breakdown is immediately reported to  the  Plumas
                    County Air Pollution Control  District.

              (b)   The person responsible shall, upon the  request of  the  Control
                    Officer, submit a full report, including the known causes  and
                    preventive measures to be taken to minimize or eliminate a re-
                    occurrence.

(2.0)    RULE 60 -  CIRCUMVENTION

         A person shall not build, erect, install, or use any article, machine,
         equipment or other contrivance, the use  of which,  without resulting in a
         reduction in the total release of air contaminants to the atmosphere, re-
         duces or conceals an emission which would otherwise constitute a  viola-
         tion of Division 20, Chapter 2, of the Health and Safety Code of  the
         State of California or of these Rules and Regulations.  This  rule shall
         not apply to cases in which the only violation involved is of Section
         24243 of the Health and Safety Code of the State of California, or of
         Rule 51, of these Rules and Regulations.

(2.0)    RULE 62 -  REVIEW OF STANDARDS

         The Air Pollution Control Officer may at any time request the Air Pollu-
         tion Control Board to hold a public hearing for review of current air
         pollution control technology, to examine the adequacy of the  emission
         limits stated in these Rules and Regulations, or to adopt any new or  re-
         vised standards that may be necessary.  Such hearing shall be held at
         least once each year on or near the anniversary date of the adoption  of
         these Rules and Regulations through 1972, after which hearings shall  be
         held upon the request of the Air Pollution Control Officer if in  his
         opinion advances in technology warrant such a hearing.

(16.0)   RULE 70 -  APPEALS FROM HEARING BOARD

         Appeals from Hearing Board are to be heard by the Board of Supervisors
         of the County of Plumas before referral  to legal action.
                       REGULATION V - PROCEDURE BEFORE THE HEARING BOARD

(2.0)    RULE 75 -  GENERAL

         This regulation shall  apply to all  hearings before the Hearing Board of
         the A1r Pollution Control  District.

(2.0)    RULE 76 -  FILING PETITIONS

         Requests for hearing shall  be initiated as  specified in the Health and
         Safety Code by the filing  of a petition with the Clerk of the Hearing
                                              -27-

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         Board at the Plumas  County  A1r  Pollution  Control  District, Quincy, Cali-
         fornia,  95971,  and the  payment  of the  fee provided  for  in Rule 42 of
         these Rules  and Regulations,  after service of a copy of the petition has
         been made on the Air Pollution  Control  Officer at Quincy, California,
         95971, and one  copy  on  the  holder of the  permit or  variance,  if any, in-
         volved.   Service may be made  in person  or by mail and service may be
         proved by written acknowledgment of the person served or by the affidavit
         of the person making the  service.

(2.0)     RULE 77  - CONTENTS  OF  PETITIONS

         Every petition  shall  state:

              (a)   The  name,  address, and  telephone number  of the petitioner or
                   other person authorized to receive service of notices.

              (b)   Whether the  petitioner  is an individual, co-partnership, cor-
                   poration  or  other  entity, and  names and  address of the part-
                   ners if a co-partnership, names and address  of the officer, if
                   a corporation, and the  names and addresses of the  persons in
                   control,  if  other  entity.

              (c)   The  type  of  business or activity involved in the application
                   and  the street address  at which it is  conducted.

              (d)   A brief description  of  the article, machine, equipment or
                   other contrivance, if any, involved in the application.

              (e)   The  section  or rule  under which the petition is filed, that is,
                   whether petitioner desires a hearing:

                   (1)   To determine  whether a  permit shall be  revoked or sus-
                         pended  permit reinstated  under section  24274, Health and
                         Safety  Code of  the State  of California.

                   (2)   For  a variance  under Section 24292, Health and Safety
                         Code.

                   (3)   To revoke or  modify a variance under Section  24298, Health
                         and  Safety  Code.

                   (4)   To review the denial or conditional granting  of an author-
                         ity  to  construct,  permit  to operate or  permit to sell or
                         rent  under  Rule 25 of these Rules and Regulations.

              (f)   Each  petition shall  be  signed  by the petitioner, or by some
                   person on  his behalf, and where the person signing is not the
                   petitioner it shall  set forth  his authority  to sign.
                                             -28-

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              (g)    Petitions  for revocation  of  permits  shall allege in addition
                    the rule under which  permit  was granted, the rule or section
                    which is alleged  to have  been  violated, together with a brief
                    statement  of the  facts  constituting  such alleged violation.

              (h)    Petitions  for reinstatement  of suspended permits shall allege
                    in addition  the rule  under which  the permit was granted, the
                    request and  alleged refusal  which formed the basis for such
                    suspension,  together  with a  brief statement as to why informa-
                    tion requested, if any, was  not furnished, whether such in-
                    formation  is believed by  petitioner  to be pertinent, and if
                    so, when it  will  be furnished.

              (i)    All petitions shall be  typewritten,  double-spaced, on legal
                    or letter  size paper, on  one side of the paper only, leaving
                    a margin of  at least  one  inch  at  the top and left side of each
                    sheet.

(5.0)     RULE 78 -   PETITIONS  FOR VARIANCE

         In addition to the matters required  by  Rule  77, petitions for variances
         shall  state briefly:

              (a)    The section, rule or  order complained of.

              (b)    The facts  showing why compliance  with the section, rule or
                    order is unreasonable.

              (c)    For what period of time the  variance is .sought and why.

              (d)    The damage or harm resulting or which would result to petition-
                    er from the  compliance  with  such  section, rule or order.

              (e)    The requirements  which  petitioner can meet and the date when
                    petitioner can comply with such requirements.

              (f)    The advantages and disadvantages  to  the residents of the dis-
                    trict resulting from  requiring compliance or resulting from
                    granting a variance.

              (g)    Whether or not operations under such variance, if granted,
                    would constitute  a nuisance.

              (h)    Whether or not any case involving the same identical equipment
                    or process is pending in  any court,  civil or criminal.

              (i)    Whether or not the subject equipment or process is covered by
                    a permit to  operate issued by  the Air Pollution Control Officer.
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(2.0)    RULE 79 -  APPEAL FROM DENIAL

         A petition to review a denial or conditional approval of an authority to
         construct, permit to operate or permit to sell or rent shall, in addition
         to the matters required by Rule 77, set forth a summary of the application
         or a copy thereof and the alleged reasons for the denial or conditional
         approval and the reasons for appeal.

(2.0)    RULE 80 -  FAILURE TO COMPLY WITH RULES

         The Clerk of the Hearing Board shall  not accept for filing any petition
         which does not comply with these rules relating to the form, filing and
         service of petitions unless the chairman or any two members of the Hear-
         ing Board direct otherwise and confirm such direction in writing.  Such
         direction need not be made at a meeting of the Hearing Board.  The chair-
         man or any two members, without a meeting, may require the petitioner to
         state further facts or reframe a petition so as to disclose clearly the
         issues involved.

(2.0)    RULE 82 -  ANSWERS

         Any person may file an answer within  10 days after service.  All answers
         shall be served in the manner prescribed for service of petitions under
         Rule 76.

(2.0)    RULE 83 -  DISMISSAL OF PETITION

         The petitioner may dismiss his petition at any time before submission of
         the case to the Hearing Board, without a hearing or meeting of the Hear-
         ing Board.  The Clerk of the Hearing  Board shall notify all interested
         persons of such dismissal.

(16.0)   RULE 84 -  PLACE OF HEARING

         All  hearings shall be held at the County Supervisors' Chambers, Plumas
         County Courthouse, Quincy, California, unless some other place is desig-
         nated by the Hearing Board.

(16.0)   RULE 85 -  NOTICE OF HEARING

         The Clerk of the Hearing Board shall  mail or deliver a notice of hearing
         to the petitioner, the Air Pollution  Control Officer, the holder of the
         permit or variance involved, if any,  and to any person entitled to notice
         under Sections 24275, 24295, or 24299, Health and Safety Code.

(2.0)    RULE 86 -  EVIDENCE

              (a)   Oral  evidence shall be taken only on oath or affirmation.
                                              -30-

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              (b)   Each party shall  have these rights:   To call  and examine  wit-
                    nesses;  to introduce exhibits;   to  cross-examine opposing
                    witnesses on any  matter relevant to  the issues  even  though
                    that matter was not covered in the direct examination;  to
                    impeach any witness regardless of which party first  called  him
                    to testify;  and  to rebut the evidence against  him.   If re-
                    spondent does not testify on his own behalf,  he may  be  called
                    and examined as if under cross-examination.

              (c)   The hearing need  not be conducted according to  technical  rules
                    relating to evidence or witnesses.  Any relevant evidence
                    shall be admitted 1f it is the sort  of evidence on which  re-
                    sponsible persons are accustomed to  rely in the conduct of
                    serious affairs,  regardless of the existence  of any  common  law
                    or statutory rule which might make improper the admission of
                    such evidence over objection in civil actions.   Hearsay evi-
                    dence may be used for the purpose of supplementing or explain-
                    ing any direct evidence but shall not be sufficient  in  itself
                    to support a finding unless 1t would be admissable over ob-
                    jection in civil  actions.  The rules or privilege shall be
                    effective to the  same extent that they are now  or hereafter
                    may be recognized in civil actions and irrelevant and unduly
                    repetitious evidence shall be excluded.

(2.0)    RULE 87 -  PRELIMINARY MATTERS

         Applications for setting a date for a hearing,  granting  continuances,
         approving petitions for filing, allowing amendments and  other preliminary
         rulings not determinative of the merits of the  case may  be granted by  the
         chairman or any two members  of the Hearing Board ex parte.  Written  no-
         tice of any action taken under this rule shall  be given  to all  parties
         by the party requesting the  action.

(2.0)    RULE 88 -  OFFICIAL NOTICE

         The Hearing Board may take official notice of any matter which  may be
         judicially  noticed by the courts of this state.

(2.0)    RULE 89 -  CONTINUANCES

         The chairman or any two members of the Hearing  Board shall grant any con-
         tinuance of 15 days or less, concurred in by the petitioner, the Air Pol-
         lution Control Officer and by every person who  has filed an answer in
         the action and may grant any reasonable continuance; in either case such
         action may be ex parte.  Written notice of any  action taken under  this
         Rule shall be given to all parties by the party requesting the  action.

(2.0)    RULE 90 -  DECISION

         The decision shall be in writing, served and filed within  30 days  after
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         submission of the cause by the parties thereto and shall  contain a brief
         statement of facts found to be true,  the determination of the issues pre-
         sented and the order of the Hearing Board.   A copy shall  be mailed or
         delivered to the Air Pollution Control Officer, the petitioner and to
         every person who has filed an answer or who has appeared  as a party in
         person or by counsel at the hearing.

(2.0)     RULE 91 -  EFFECTIVE DATE OF DECISION

         The decision shall  become effective 15 days after delivering or mailing  a
         copy of the decision, as provided in  Rule 90, or the Hearing Board may
         order that the decision shall  become  effective sooner.

(3.0)     RULE 95 -  LACK OF PERMIT

         The Hearing Board shall  not receive or accept a petition  for a variance
         for the operation or use of any article, machine, equipment or other
         contrivance until the permit to operate has been granted  or denied by the
         Air Pollution Control Officer except  under  the following  conditions:

              (a)   An appeal from a denial  of a permit to operate and a petition
                    for a variance may be filed with the Hearing Board of a single
                    petition.

              (b)   The Control  Officer may petition the Hearing Board to grant a
                    variance or extension of initial  compliance for any Individual
                    operation or group of operations.

         The variance granted by the Hearing Board after a denial  of a permit to
         operate by the A1r Pollution Control  Officer may include  a permit to
         operate for the duration of the variance.
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