View all text of Subjgrp 258 [§ 49.11011 - § 49.11040]
§ 49.11015 - Classification of regions for episode plans.
The air quality control region which encompasses the Umatilla Reservation is classified as follows for purposes of episode plans:
Pollutant | Classification | Carbon monoxide | III | Nitrogen dioxide | III | Ozone | III | Particulate matter (PM10) | II | Sulfur oxides | III |
---|