An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Granite Construction Company Synthetic Minor Source Air Permit for Hot Mix Asphalt Plant in Okanogan, Washington

This page contains documents related to EPA's synthetic minor source air permit issued to Granite Construction Company for its hot mix asphalt plant in Okanogan, Washington.

Permit Number: R10TNSR01700
Issued: February 8, 2019
Effective: March 11, 2019

Expires: N/A

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.