YOLO-SOLANO AIR QUALITY MANAGEMENT DISTRICT

RULE 7.3 - EPISODE DETERMINATION


a. Declaration of an Episode. A Stage 1, Stage 2, or Stage 3 Air Pollution Episode shall be declared to exist if any of the appropriate levels shown in Table 1 have been exceeded and are expected to persist or increase. The Air Pollution Control Officer shall notify those shown in Table 2 of any episode declaration. The Yolo and Solano County Offices of Emergency Services shall notify those shown in Table 3. Such notifications must include specification of the pollutant or pollutants responsible for the episode, the measured concentration of such pollutants, location where measurements were made, and area over which episode is considered to be in effect. As soon as a Stage 3 episode has been declared, the Air Pollution Control Officer shall consult with the California Air Resources Board. If it is determined that such levels are expected to persist, the Air Pollution Control Officer shall request that the Governor invoke the provisions of the Emergency Services Act.

In order to determine the levels of air contaminants as required by Table 1, the Air Pollution Control Officer shall establish and maintain at least one permanent sampling station adequately equipped. The Air Pollution Control Officer may establish and maintain such additional fixed or mobile sampling stations as necessary.

TABLE 2

Persons and agencies to be notified by the Air Pollution Control Officer of the declaration and termination of a Stage 1, 2, or 3 air pollution episode:
1. The Yolo and Solano County Offices of Emergency Services.
2. The California Air Resources Board.
3. Member of the Yolo-Solano Air Pollution Control Board.
4. The Sacramento Air Pollution Control District.
5. Persons to be notified for source abatement as specified in Rule 7.4.

TABLE 3

Persons to be notified by the Yolo and Solano County Offices of Emergency Services of the declaration of a Stage 1, 2, or 3 air pollution episode in their respective county.
1. Yolo and Solano County Health Officers.
2. California Highway Patrol, Yolo and Solano County Sheriffs, and all municipal police departments within the Yolo-Solano Air Pollution Control District.
3. All newspapers circulated within the Yolo-Solano Air Pollution Control District and such radio and television stations as deemed by the Office of Emergency Services to have significant audience within the District.
4. All general and convalescent hospitals within the District.
5. Schools, colleges and universities within the District.
b. Termination of an Episode. A Stage 1, Stage 2 or Stage 3 episode shall be declared terminated in the event that the concentrations of carbon monoxide and photochemical oxidant do not exceed the levels for the appropriate episode as shown in Table 1 and are not expected to increase. At the termination of a Stage 3 episode. a Stage 2 episode shall be declared to exist. At the termination of a Stage 2 episode, a Stage 1 episode shall be declared to exist. The Air Pollution Control Officer shall notify those shown in Table 2 and the Offices of Emergency Services shall notify those shown in Table 3 of any episode termination.