• Innovative “Outside-In” approach incorporated injection design working from perimeter of the treatment area first, and progressively working toward the center
• First event application completed within seven days with a second event completed in nine days the following month without disruption to active site
• Closely managed injection wells to ensure proper distribution and avoid surfacing

An active gasoline station in Springerville, AZ was listed as a hazardous Leaking Underground Storage Tank (LUST) site by the state of Arizona. After 30 years of unsuccessful remediation using a number of approaches, REGENESIS Remediation Services (RRS) was contacted to perform two separate injection events approximately one month apart. Both events included injections at 15 injection points over a range of depths. The first round of injections included a combination of PersulfOx and ORC Advanced. The second round of injections contained only PersulfOx.