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2025-07-20 10:07:52 -

Diversified Environmental Field Services

We’re a small, experienced team offering hands-on field support for environmental consultants and engineers across Southern California. Whether it’s soil testing before a construction project or remediation during a cleanup, we show up on time, ready, and with the right tools. For over 20 years, DEFS has been the go-to partner for accurate pilot testing,...

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