SAN JOAQUIN VALLEY UNIFIED AIR POLLUTION CONTROL DISTRICT
RULE 6040 - EPISODE STAGES
(Adopted May 21, 1992, Amended December 17, 1992)
1.0 Health Advisory
A health advisory is issued when the concentration of the pollution specified for this stage is predicted or reached.
2.0 Stage 1 (Alert)
An alert is called when the concentration of the pollutants specified for this stage is predicted or reached.
3.0 Stage 2 (Warning)
A warning is called when the concentration of pollutants specified for this stage is predicted or reached.
4.0 Stage 3 (Emergency)
An emergency is called when the conditions specified for this stage are predicted or reached and in the case of the 1-hour criteria for carbon monoxide or oxidants, are predicted to persist for 1 additional hour.
5.0 Episode Termination
A stage is terminated whenever the concentration of the pollutant(s) which cause(s) the declaration of the episode has been verified to have fallen below the criteria level for the declaration of the episode, and meteorological data indicate that the pollutant concentration is expected to decrease.