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Hawaii has two Class I areas, Haleakalā National Park on Maui Island and Hawai’i Volcanoes National Park on Hawaii Island. DOH-CAB evaluated the following four sources, and proposed the following actions:

Based on NPCA’s research, we know these sources contribute to visibility impairment at Hawaii’s Class I areas. As discussed below, we urge DOH-CAB to revise its Proposed SIP as follows.

(1) Make the necessary corrections to the Four-Factor Analyses at the unit at the Maalaea Power Plant, which will result in emission limits;
(2) As expeditiously as possible, either obtain from the sources or conduct the incomplete and needed Four-Factor Analyses, including SIP provisions.
(3) Ensure that emission limitations (and shut down requirements) and monitoring, recordkeeping and reporting requirements are included in the SIP as regulatory provisions and submitted to EPA for approval, which first go through public notice and comment, and
(4) Fully consider environmental justice impacts of emissions.
These revisions and considerations are necessary to not only clear the air in our national parks, but in our communities, including environmental justice communities that may be impacted.

Read the Issues Identified and the Conclusion here (PDF).

Read Exhibits: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 (PDF).