Klamath Falls PM2.5 Attainment Plan
Because of topography, weather and a large number of woodstoves,
the Klamath Falls area has a long history of identifying problems with particulate
pollutions and working to solve them. With increased understanding of the health
effects of particulates, EPA has made the standards more protective over time,
addressing smaller sized particles that are
the most hazardous but more difficult to control.
Since 1994, the Klamath Falls area has attained the larger or
coarse (PM10) particulate matter standard. In 2009, with the adoption of a
fine particulate (PM2.5) matter standard, EPA changed the legal status of the
Klamath Falls Area from attainment (meeting air quality standards) to
nonattainment (not meeting air quality standards) for fine particulate matter (PM2.5).
DEQ has adopted an attainment plan with associated regulations to ensure that the Klamath Falls area meets the current PM2.5 standard.
The EQC adopts
a PM10 attainment plan which includes emission reduction strategies for:
Woodstove and open burning curtailment,
winter road sanding controls, public education programs, and agreements with
Forestry and Agriculture agencies.
The Klamath Falls Urban Growth Boundary is in nonattainment for PM10
1994: Klamath Falls is in compliance with the standards.
1999: DEQ establishes a PM2.5 monitor in Klamath
Falls and monitors high levels of PM2.5 in the airshed.
2002 DEQ prepares and the EQC adopts a PM10
Maintenance Plan for Klamath Falls:
Klamath Falls UGB PM10 Maintenance Plan
Appendix 6-1 Technical Analysis Protocol
Appendix 6-2 Klamath Falls UGB Monitoring Network
Appendix 6-3 PM10 Saturation Survey
Appendix 6-4 Emission Inventory and Forecast
Appendix 6-5 Conformity
Appendix 6-6 Population and Historical Growth Trends
Appendix 6-7 Klamath County Ordinance and other agreements
Appendix 6-8 Design Value and 2015 Projections
2003: EPA approves the Maintenance Plan and associated rules for
the Klamath Falls Maintenance area for coarse particulate matter
(PM10). The legal status of the Klamath Falls area
changes from nonattainment to attainment for PM10. The
Urban Growth Boundary is now in attainment for coarse particulate
EPA revises PM2.5
2007: Klamath County revises its Clean Air Ordinance
which further limits the use of woodburning
devices inside the home and outdoor burning during the winter months when high levels of PM2.5
Woodstove replacement programs are implemented to help low income individuals replace their uncertified woodstoves
with cleaner units.
Klamath Falls along with
Oakridge are designated Nonattainment
for fine particulate matter (PM2.5) by EPA.
concentrations are high
enough to cause a violation of the 24 hour air quality standard also known as the
National Ambient Ari Quality Standard (NAAQS).
2012: The EQC adopts the Klamath Falls PM2.5
Attainment Plan for Klamath Falls. The plan is submitted to the