The following is a listing of VESP Silver Level members: 

Arizona Proving Ground *

Joined July 2017

City of Show Low

Joined August 2015

City of Tempe - Tempe Grease Cooperative

Joined August 2016

City of Yuma — Mainstreet Water Treatment Plant

Joined March 2017

Ford Proving Grounds

Joined June 2017

Town of Eagar *

Joined February 2015

Town of Springerville *

Joined December 2015

* These facilities have earned the "Superior Compliance History" designation.