Background

The Oakridge Urban Growth Boundary was designated nonattainment for PM₁₀ and classified as moderate on January 20, 1994.

Oregon submitted a PM₁₀ attainment plan on December 9, 1996, and EPA approved the plan on March 15, 1999 (64 FR 12751 (PDF)(9 pp, 165 K, About PDF)). 

On July 26, 2001, EPA published a finding of attainment for the Oakridge PM₁₀ area (66 FR 38947 (PDF)(2 pp, 132 K)). However, the designation status in 40 CFR part 81 remains moderate nonattainment for the area until such time as Oregon meets the CAA requirements for redesignations to attainment.

On January 22, 2003, EPA approved a recodified version of Oregon's rules to remove and replace the outdated numbering system (68 FR 2891 (PDF)(19 pp, 205 K)). Measures below reference the recodified version of Oregon's rules. 

Summary

The plan relies on control strategies needed to assure attainment of the PM₁₀ National Ambient Air Quality Standards (NAAQS). The strategy focuses on control of residential wood combustion, and road dust. Additional reductions are expected from statewide efforts to reduce slash burning smoke.

Control Measures

• Accelerated Woodstove Replacement Program through grants and loans (1993-1994)
• Aggressive Voluntary Residential Wood Burning Curtailment (1996)
• Letter of Agreement from ODOT , July 29, 1996, Use of Anti-icing Chemicals in the City of Oakridge
• Road Paving Program (1991-1995)

Contingency Measures

• City Ordinance 815, Mandatory Wood Heating Curtailment Program, adopted August 15, 1996
• OAR 340-262-0310 - Removal and Destruction of Uncertified stove upon Sale of Home

EPA Effective Date

May 14, 1999