Hanford Site Builds on Decade of Groundwater Treatment

RICHLAND, Wash. - The scores are in, and the Hanford Site received a perfect 10 - that is, 10 consecutive years of treating more than 2 billion gallons of contaminated groundwater, an achievement that highlights continuous, consistent cleanup progress.

For fiscal year 2024, which ended Sept. 30, Hanford contractor Central Plateau Cleanup Company (CPCCo) treated 2.3 billion gallons. Hanford has treated nearly 35 billion gallons since the site's award-winning groundwater remediation program began in the 1990s.

"Hanford's groundwater program has been a model of consistency and one of the biggest success stories in our ongoing cleanup mission," said Naomi Jaschke, Hanford Field Office project director for the Soil and Groundwater Division. "But the job is not finished. We are continually seeking more efficient and cost-effective solutions to improve our systems, with protection of the nearby Columbia River our ultimate goal."