California Gov. Gavin Newsom's disaster chief quietly retired in late December amid criticism over the state's indecisive ...

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

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

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