Orchard Rite

In September 1994, three underground storage tanks (USTs) were decommissioned and removed from the Site.  Two of the tanks were 1,100 gallon capacity and historically contained diesel and unleaded gasoline fuels. The third tank was 10,000 gallon capacity and historically contained unleaded gasoline.  The tanks appeared to be in good condition, and no evidence of a release associated with the tanks was observed during removal activities.
 
Samples were collected from the base and sidewalls of two excavation areas and from three stockpiles generated during the removal activities. One sample from the stockpile generated during the removal of the 10,000 gallon UST exceeded MTCA cleanup levels for gasoline and benzene.  The clean stockpiled soil was used to backfill the excavations.
 
Approximately 35 cubic yards of petroleum impacted soil from the stockpile was classified as "Class 4 Soil" and apparently landfarmed at another facility associated with Orchard Rite, located at 1615 W Ahtanum Road, Yakima. The requirements for land farming soil at the time included tilling the soil on a bi-monthly basis and collecting at least three samples to verify the treatment progress after three months.  No landfarming documentation has been received.
 
Groundwater wasn't encountered in the excavations up to depths of 13 feet below ground surface.  A domestic water well is located approximately 15 feet north of the excavation at the Site.  In 2008, results of TPH analysis of the well water were submitted.  Diesel exceeding MTCA Method A cleanup levels was reported.

This site is in our Voluntary Cleanup Program, which provides technical help to owners of contaminated sites.

Voluntary Cleanup Program customers pay fees to cover our costs for technical help and reviewing cleanup reports. Sites in this program must meet the same cleanup standards as sites Ecology manages under legal orders.