Documents Related to Closure of Leaking Underground Storage Tank at Former Smitty's Conoco Facility in Washington

EPA is accepting public comments on the proposed closure of a leaking underground storage tank (UST) site formerly known as Smitty’s Conoco located at 102 E. Toppenish Ave. in Toppenish, Washington, on the Yakama Indian Reservation. The documents below are available for review.

• Statement of Basis, Closure of Leaking UST at Former Smitty's Conoco #140, Toppenish, Washington, Yakama Reservation (pdf) (172.11 KB, May 2021)
  EPA's basis for determining no further environmental investigation or cleanup is required.
• Human Health Risk-Based Assessment and Closure Request, Former Smitty's Conoco #140, Toppenish, Washington, Yakama Reservation (pdf) (8.56 MB, March 4, 2021)
  Report submitted to EPA supporting a risk-based closure of the site.