Or. Admin. R. 340-245-0320 - Standards and Criteria for Noncancer Risk Action Levels for Existing Contamination Sources

(1) The noncancer Risk Action Levels for existing sources are identified in OAR 340-245-8010, Table 1.
(2) The toxic air contaminants for which an adjusted noncancer Risk Action Level will apply are identified in OAR 340-247-8010, Table 2, and OAR 340-245-8010, Table 2 in the column named "Noncancer TBACT RAL."
(3) An adjusted Risk Action Level will be applied to existing sources that emit one or more toxic air contaminants identified in OAR 340-247-8010, Table 2, or OAR 340-245-8010, Table 2 with a noncancer TBACT RAL of a Hazard Index of 3. For sources that emit a mixture of toxic air contaminants with noncancer TBACT Risk Action Levels of both a Hazard Index of 3 and a Hazard Index of 5, the Risk Determination Ratio calculation expresses the degree to which the applicable Risk Action Level may be adjusted for each source.


Or. Admin. R. 340-245-0320
DEQ 8-2020, adopt filed 04/24/2020, effective 4/24/2020; DEQ 18-2021, amend filed 11/17/2021, effective 11/17/2021

Statutory/Other Authority: ORS 468.020 & Or Laws 2018, ch. 102, § 7

Statutes/Other Implemented: Or Laws 2018, ch. 102, §7

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