PBS Engineering and Environmental

Hattenhauer Trucking Spill Remediation

Location: Washington

A semi-truck accident occurred in February 2012 on Washington SR-14 about 14 miles west of Roosevelt, Washington. The truck with a pup trailer was hauling approximately 10,800 gallons of gasoline. The accident forced the truck off SR-14 and into the ditch along the south-side of the road. The tanker caught on fire, which was permanently extinguished 10 hours after the accident occurred. The release occurred in the ditch between SR-14 and the Burlington Northern Santa Fe (BNSF) railroad tracks. The Columbia River is situated to the south of the railroad tracks adjacent to a gravel access road.

PBS installed monitoring wells in the ditch as well as along the gravel access road, then conducted a limited injection of persulfate solution. Monitoring included the collection of surface water samples from upstream and downstream. A second expanded groundwater injection event was undertaken about one year later to reduce contaminant concentrations to within a range of acceptable levels. There was an 85% decrease in gasoline contaminants in groundwater within the zone of the remedial injection. Groundwater monitoring continues to determine if natural attenuation may now be occurring.

Client:
Action Environmental Group
Klickitat County, Washington

Scope of Services:

  • Remediation Oversight
  • Soil, Water, & Groundwater Testing
  • BNSF Permitting
  • Agency Reporting
  • Persulfox Injection
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