Nancy Ward, the head of CalOES, left office on Dec. 30. She had publicly begged FEMA to test for toxic substances after the ...

For months, federal officials have said post-cleanup soil testing for fire-stricken homes in L.A. was unnecessary. Now, they ...

After oversight reports and media coverage flagged problems with how some cleanup contractors operated, federal agencies ...

Learn why soil pH is the most important soil test value and how it affects nutrient availability and lime requirements.

Following a Los Angeles Times report Friday the revealed California officials considered making LA County pay for ...

Testing for toxic chemicals and heavy metals is available in Los Angeles County from philanthropic groups, researchers, and ...