Ecology receives fingerprint analysis of WW gasoline samples
By Dan Thesman on Friday, September 29th, 2023 in Columbia Basin News More Top Stories
News release from city of Walla Walla
WALLA WALLA – Washington Department of Ecology has received fingerprint analysis of the gasoline samples and is communicating with affected parties to determine next steps.
The response team is discussing possible methods of creating a “cone of depression” for recovering product and directing the potential plume.
Clean Harbors has mobilized a granulated active carbon (GAC) filtration system for treatment of the impacted water that has been recovered. The system is expected to be set up by Saturday.
Air monitoring conducted regularly by Walla Walla Fire Department at buildings surrounding the affected area has detected no trace of unsafe conditions, so WWFD has suspended monitoring in these buildings and communicated this with the owners and/or tenants. Clean Harbors continues to perform area air monitoring in support of the ongoing ventilation and pumping operations taking place at the Marcus Whitman Hotel and Conference Center and 106 N. 2nd Ave.
This update is based on information provided by Washington Department of Ecology staff. City staff will continue to provide these updates on the City website (https://www.wallawallawa.gov/gasoline) as we receive additional info from Ecology.
Photo of a cover installed on each monitoring well to provide secure access for investigators to collect samples and perform readings. This well was drilled on Sept. 23, 2023, in front of 106 N. 2nd Ave.
