Additional monitoring wells being drilled as gas plume investigation continues
By Dan Thesman on Sunday, September 24th, 2023 in Columbia Basin News More Top Stories
News release from city of Walla Walla
WALLA WALLA – On Saturday and today (Sunday), the focus is on drilling additional monitoring wells to help the investigation team delineate the boundaries of the underground gasoline plume.
With the drilling operations moved away from the intersection of 2nd Avenue and Rose Street, the Walla Walla Fire Department reopened Rose to vehicle traffic, as well as 2nd from Rose to Main.
The sump in the basement of 106 N. 2nd Ave. continues to accumulate contaminants, and the Clean Harbor crew has continued to pump it out into frac tanks on site.
WWFD continues to perform regular air quality monitoring at buildings around the area, with no changes detected.
The response team appreciates the flexibility of the community as we learn more about the situation and adjust our approach to changing conditions.
City staff will continue to provide these updates on the City website (https://www.wallawallawa.gov/gasoline) as the situation changes.
Map shows the closed streets and sidewalks as of Sept. 24, 2023, and the exit lane from the Chevron station onto southbound 2nd Avenue.
