TUOLUMNE COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 305 - MINIMUM DRYING TIMES

305.1 Requirements. As specified in Title 17, 80160; to lower the moisture content of the material being burned, the elapsed time between cutting and burning shall be:

  1. A minimum of three days for green straw and stubble.
  2. Sufficient time for agricultural waste such as orchard prunings, small branches, vegetable tops, and seed screenings to assure rapid and complete combustion with a minimum of smoke.
  3. A minimum of six weeks for trees, stumps, and large branches greater than six inches in diameter.
  4. A minimum of 6 months, if economically and technically feasible for brush. (Applicable to Range Improvement Burning only.)
  5. Material to be windrowed and piled when required. (Applicable to Forest Management Burning only.)

305.2 Exception The APCO may, by permit, authorize shorter drying times if the denial of such a permit would threaten imminent and substantial economic loss.