On 20 Sep 06, an Associated Petroleum Products (APP) fuel truck slid off the road and over an embankment at Howard Hanson Dam (Reservoir). The APP fuel truck was returning from refueling operations at a BPA construction site. Incident resulted in the release of approximately 600 gallons of #2 diesel fuel into the soil. APP called the response contractor NRC Environmental Services (NRCES)to the scene. Initial soil analysis predicted that the fuel would quickly move vertically through the soil until it reached the water table.
This fuel has traveled from the spill site to the reservoir shore. Temporary measures have been put in place to minimize the fuel impact to the water. This has been accomplished with a series of trenches dug with absorbent materials placed in them and also a combination of oil only absorbents and rigid containment boom.
With the emergency phase over, planning has begun for the soil remediation & removal of any remaining fuel that can be captured.
