SIMI VALLEY, Calif. (AP) -- Crews this summer have been fanning out across a Cold War rocket test site outside of Los Angeles to collect dirt as part of a massive effort to clean up from a partial nuclear meltdown a half century ago.
Responsible parties face a 2017 deadline to restore the Santa Susana Field Laboratory to its condition before chemical and radioactive wastes leached into the soil and groundwater.
Some residents, however, remain dissatisfied that after all this time a large portion of the land won't be cleaned to the highest standards.
The Energy Department and NASA have agreed to clean their parcels to background levels -- the most stringent standard. But Boeing has opted to follow cleanup rules in a 2007 pact requiring the site to be scrubbed to a lesser standard.