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 monoxideIII Nitrogen dioxideIII OzoneIII Particulate matter (PM10)II Sulfur oxidesIII