Tanker Truck Rollover and Spill in Little Spokane River

Status updates

Friday, June 13, 2025 -- 4:30 p.m.

We remain on site at the Little Spokane River spill location working alongside EPA and contractors. Cleanup operations are ongoing, and there continues to be no indications that private wells have been impacted.

Following further assessment, the estimated spill volume has been revised. Yesterday, we reported that approximately 2,100 gallons of emulsified mixture entered the water. While we knew the product was diluted emulsion, the exact breakdown between water and asphalt wasn’t known at the time.

After reviewing the material and how it was diluted, we now estimate that approximately 300 gallons of asphalt product entered the water, much less than initially believed.

We’re committed to sharing timely and accurate information as conditions evolve and remain focused on transparency and public trust as cleanup efforts continue.

Thursday, June 12, 2025 -- 12:31 p.m.

We remain onsite at the Little Spokane River spill location in Chattaroy, WA, working alongside the U.S. Environmental Protection Agency. Cleanup operations are ongoing, and there continues to be no reported impact to public health or nearby drinking water sources. 

Yesterday, a tow company stablilized the truck, allowing 1,500 gallons of product to be removed before it was extracted. The truck was originally carrying 3,600 gallons, leaving an estimated 2,100 gallons unaccounted for.

The responsible party hired a contractor to support environmental cleanup. Hard boom and sorbent materials were deployed at several downstream locations to help contain and recover product from the water.

We continue to assess impacts and develop a mitigation strategy to address the remaining product. As of last night, sheen was observed up to one mile downstream.

Containment efforts remain in place and monitoring efforts are ongoing.

Wednesday, June 11, 2025 -- 12:12 p.m. 

The Washington Department of Ecology ane the U.S. Environmental Protection Agency are responding to an asphalt release into the Little Spokane River in Chattaroy. A bridge failed under the weight of a spray truck carrying an asphalt mixture, causing the truck to overturn and spill an estimated 2,1000 gallons into the water. 

The release occurred near the intersection of E Eloika Road and N Milan Elk Road. Cleanup contractors are onsite, and containment booms and absorbent materials have been deployed.

Photos of this incident are available through our Flickr album.