Or. Admin. Code § 340-208-0610 - Clackamas, Columbia, Multnomah, and Washington Counties: Particulate Matter Weight Standards

Except for equipment burning natural gas and liquefied petroleum gas, the maximum allowable emission of particulate matter from any fuel burning equipment:

(1) Is a function of maximum heat input as determined from Figure 1, except that from existing fuel burning equipment utilizing wood residue, it is 0.2 grain, and from new fuel burning equipment utilizing wood residue, it is 0.1 grain per standard cubic foot of exhaust gas, corrected to 12 percent carbon dioxide;

(2) Must not exceed Smoke Spot #2 for distillate fuel and #4 for residual fuel, measured by ASTM D2156-65, "Standard Method for Test for Smoke Density of the Flue Gases from Distillate Fuels."

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[NOTE: Publications referenced are available from the agency.]

Notes

Or. Admin. Code § 340-208-0610

DEQ 61, f. 12-5-73, ef. 12-25-73; DEQ 4-1993, f. & cert. ef. 3-10-93; Renumbered from 340-028-0075; DEQ 3-1996, f. & cert. ef. 1-29-96; DEQ 14-1999, f. & cert. ef. 10-14-99, Renumbered from 340-030-0510; DEQ 2-2001, f. & cert. ef. 2-5-01; DEQ 7-2015, f. & cert. ef. 4-16-15; DEQ 122-2018, minor correction filed 04/11/2018, effective 04/11/2018; DEQ 13-2019, amend filed 05/16/2019, effective 5/16/2019; DEQ 19-2022, amend filed 11/18/2022, effective 3/1/2023

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Statutory/Other Authority: ORS 468 & 468A

Statutes/Other Implemented: ORS 468.020 & 468A.025