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

This page contains documents related to EPA's issuance of a synthetic minor source air permit issued to Granite Construction Company for its hot mix asphalt plant located in Okanogan, Washington on the Colville Reservation. The synthetic minor source air permit limits carbon monoxide to 20 tons per year (tpy), Nitrogen Oxides to 13 tpy, particulates to 68 tpy, fine particulates (PM10) to 19 tpy, fine particulates (PM2.5) to 8 tpy, sulfur dioxide to 21 tpy, and volatile organic compounds to 7 tpy.

Expires: N/A

• Synthetic Minor Source Permit for Granite Construction Okanogan HMA Plant (pdf) (534.83 KB, February 8, 2019)
  Final permit.
• Permit Analysis for Synthetic Minor Source Permit for Granite Construction Okanogan HMA Plant (pdf) (810.06 KB, February 8, 2019)
  Technical basis for permit.