(Adopted: April 25, 1995)


  1. APPLICABILITY: The provisions of this determination (rule) shall apply to the Sierra Pacific Industries or any subsequent owner or operator of the Sierra Pacific Industries facility located at 3970 Carson Road, Camino, California. All provisions are RACT and the emissions standards only apply to the main wood waste-fired boiler (Boiler #3) at the facility.


  1. AIR POLLUTION CONTROL OFFICER (APCO): The Air Pollution Control Officer of the El Dorado County Air Pollution Control District, or his or her designee.
  2. BOILER: Any external combustion equipment fired with any fuel used to produce heat or steam.
  3. EXEMPT COMPOUNDS: Means any of the following compounds:
    1. methane (CH4)
    2. carbon dioxide (CO2)
    3. carbon monoxide (CO)
    4. carbonic acid (CO(OH)2)
    5. metallic carbides (M-C) or carbonates (M-CO3)
    6. ammonium carbonate ((NH4)HCO3(NH4)CO2NH2)
    7. 1,1,1-trichloroethane (methyl chloroform)
    8. methylene chloride (dichloromethane)
    9. trichlorofluoromethane (CFC-11)
    10. dichlorodifluoromethane (CFC-12)
    11. chlorodifluoromethane (HCFC-22)
    12. trifluoromethane (HFC-23)
    13. 1,1,1-trichloro-2,2,2-trifluoroethane (CFC-113)
    14. 1,2-dichloro-1,1,2,2-tetrafluoroethane (CFC-114)
    15. chloropentafluoroethane (CFC-115)
    16. 2,2-dichloro-1,1,1-trifluoroethane (HCFC-123)
    17. 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124)
    18. pentafluoroethane (HCFC-125)
    19. 1,1,2,2-tetrafluoroethane (HCFC-134)
    20. 1,1,1,2-tetra fluoroethane (HCFC-134a)
    21. 1,1-dichloro-1-fluoroethane (HCFC-141b)
    22. 1-chloro-1,1-difluoroethane (HCFC-142b)
    23. 1,1,1-trifluoroethane (HFC-143a)
    24. 1,1-difluoroethane (HFC-152a)
    25. parachlorobenzotriflouride (PCBTF)
    26. volatile cyclic and linear methyl siloxanes (VMS)
    27. The following classes of perfluorocarbon (PFC) compounds:
      1. cyclic, branched, or linear, completely fluorinated alkanes,
      2. cyclic, branched, or linear, completely fluorinated ethers with no unsaturations,
      3. cyclic, branched, or linear, completely fluorinated tertiary amines with no unsaturations, and
      4. sulphur containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon and fluorine. Perfluorocarbons shall be assumed to be absent from a product or process unless a manufacturer or facility operator identifies the specific individual compounds (from the broad classes of perfluorocarbon compounds) and the amounts present in the product or process and provides an EPA approved test method which can be used to quantify the specific compounds.
  4. PPMV: Is the concentration of pollutant in units of parts per million, by volume.
  5. PRODUCTION RATE: Is the total steam output of a boiler in pounds of steam per hour (lbs-steam/hour) of boiler operation.
  6. REASONABLE AVAILABLE CONTROL TECHNOLOGY (RACT): For the purposes of this determination (rule), means the lowest emission limitation that a particular boiler is capable of meeting by using measures that are reasonably available in terms of technological and economic feasibility. Such measures may include either control system(s) or improved combustion conditions, or both.
  7. TOTAL ORGANIC GASES: Any compounds that contain at least one carbon atom.
  8. VOLATILE ORGANIC COMPOUND (VOC): Any compound containing at least one atom of carbon, except exempt compounds as defined above.
  9. WOOD WASTES: Include bark, sawdust, shavings, hogged wood, and other wood refuse generated during processing operations.

Emission limits in this section are referenced to dry stack gas conditions, all VOC ppmv concentrations shall be corrected to twelve percent (12%) by volume stack gas carbon dioxide (CO2), and VOCs are reported as methane (CH4).

  1. EMISSION LIMITS (ppmv): VOC emissions from wood waste boiler operations at a production rate exceeding an annual (calendar year) average of 50,000 lbs-steam per hour as defined in Section 234.2 of this rule must meet the emission limit of 150 ppmv of VOC in the stack exhaust stream.
  2. EMISSION LIMIT MAINTENANCE: The VOC emission limit presented in Section 234.3 A., shall be maintained through any one or more of the following provisions:
    1. Use of fuel with a maximum moisture content of 50%,
    2. Operation of the boiler at optimal combustion conditions,
    3. Proper operation and maintenance of pollution control equipment, and
    4. Periodic inspection, maintenance, and repairs on the boiler and other equipment.


  1. COMPLIANCE SCHEDULE: The VOC emission limit defined in Section 234.3 A., shall be achieved on or before 1 February 1996.
  2. EMISSIONS TESTING AND RECORDS: The facility subject to the standards of Section 234.3 of this rule shall, at a minimum, conduct sample analysis for VOC pollutants at least once each year or at the discretion of the Air Pollution Control Officer (APCO). The Air Pollution Control Officer shall be provided with adequate advance notification at least 2 weeks before any scheduled emissions tests. The analysis results must be submitted to the APCO within 60 days of the emissions test.
  3. EMISSION CONTROL RECORDS: Any facility complying with the provisions of Section 234.3 A., of this rule through the provisions of Section 234.3 B., of this rule with air pollution control equipment shall maintain applicable records of system operating parameters, including temperatures, pressures, fuel flow rate, and steam production rate, repair, fuel moisture, and all VOC control measures.
  4. REPORTING: The Air Pollution Control Officer shall be notified within 48 hours of any event or incident that results in a known exceedance of this standard.
  5. RETENTION OF RECORDS: All records maintained pursuant to this section shall be retained and available for inspection by the APCO or his or her designee for the previous five-year period.


  1. DETERMINATION OF VOC CONTENT OF EXHAUST STREAM: The VOC content of the exhaust gas stream subject to the provisions of this determination (rule), excluding exempt compounds, shall be analyzed as prescribed by U.S. EPA Reference Methods 25 or 25A. If Method 25A is utilized, instruments shall be calibrated with propane and VOC concentrations shall be converted to ppmv methane on a carbon equivalence. Emissions found to exceed limits by either method constitute a violation of this rule.
  2. DETERMINATION OF EXEMPT COMPOUNDS: Measurement of exempt compounds shall be conducted and reported in accordance with EPA Method 18.
  3. DETERMINATION OF TEST METHODS FOR QUANTIFYING CO2 CORRECTION OF VOC CONCENTRATIONS: Either ARB Method 100 or EPA Method 3A shall be used for quantifying CO2 to support correction of VOC concentrations to a standard basis independent of the amount of dilution air in the stack.