Testing the waters: Feds stop paying to sample LANL runoff

Buckman Direct Diversion picks up the cost for testing the Rio Grande

The federal government has also deferred its remediation of a dump site called Material Disposal Area C, citing its proximity to “active facility operations.” The dump resides across the street from the plutonium handling facility, where work is taking place round the clock.

That facility — officially known as PF-4 — is the linchpin in the nation’s modernization of its nuclear arsenal, which is estimated to cost about $1.7 trillion over the next three decades, or about two Manhattan Projects per year. Los Alamos’ budget for 2026 is expected to be around $5.2 billion, much of it for weapons production. Its clean-up budget, meanwhile, is around $281 million.

“There’s no reason in hell we should’ve lost that $96,000,” said Anna Hansen, a former county commissioner and Buckman board chair. “It’s a drop in the bucket.”

| June 12, 2026 sourcenm.com

With every spring snowmelt or heavy summer monsoon comes the chance that radioactive particles and toxic chemicals could run down the lobed canyons that are etched into the sides of the Pajarito Plateau and outside the boundaries of Los Alamos National Laboratory.

Evidence of Cold War experiments have been detected at high levels in these stormwaters, including traces of high explosives, metals and other radioactive particles, which dispersed across multiple watersheds when scientists tested weapons components in the open air decades ago or were buried in unlined waste pits.

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