Agricultural soil testing is critical to determining soil’s nutrient concentration and variability across your fields. It is ideal to test your fields’ soil at least every two to three years to inform ...

Wildfire survivors across Los Angeles County are discovering that the most dangerous consequence from a wildfire isn’t always visible. Lead, arsenic, and other toxic metals could be hiding deep in ...

To have a soil analysis done you should collect several core samples to combine as a composite sample. Composite samples usually include soil taken from the surface to a depth of 6 inches across ...

USC's CLEAN program is offering free soil testing for residents in Boyle Heights and East Los Angeles.