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Juneau State Office Mailing Address Update

All mail sent to the DEC office in Juneau through the U.S. Postal Service must be addressed to P.O. Box 111800, Juneau, AK, 99811. Beginning October 1, all mail addressed to our Willoughby Avenue address will not be delivered and will be returned to sender by the Post Office. This change only impacts incoming mail to the Juneau office.

Contacts for Ultra Low Sulfur Diesel (ULSD)

  • Heather Valdez
  • Environmental Engineer
  • EPA Region 10, Office of Air, Waste and Toxics
  • 1200 6th Ave, Suite 900, AWT-107
  • Seattle WA, 98101
  • Phone: 206-553-6220

If you have questions regarding ULSD and DEC's role, please contact:

For questions regarding stationary source rules and ULSD use, please contact: