(310) 880-9647 
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* Top 10 of 2025-6 by Environmental Business Review
* Top 10 of 2024 & 25 by Environmental Business Outlook
*As seen on the “Jason Alexander Show” for the Palisades/Eaton Fire Cleanup* (See Audio or Video)
We are MBE/DBE General Contractors in California specializing in Environmental Compliance Services and Environmental Health & Safety (EHS) on private developments, public works, Superfunds/CRCLA, brownfields, and projects for wetlands & watershed protection.
We have a wider range of licenses than any contractor in the state, giving us experience over anything HAZMAT, Biohazard, acutely toxic environments, radioactive substances, earthwork and excavation, groundwater treatments, and more. We are Public Works, Federal/Military, and Los Angeles-preferred vendors, which makes us your key ally for navigating your compliance with DTSC, Coastal Commission, tribal governments, AQMD, and more. We also have AQMD’s rare 1166 Various Sites License for contaminated soil management across California. We also have all of the relevant Water Board licenses (QSD, QSP, QISP) for Stormwater compliance and all needed licenses for soil erosion management (CPESC, CISEC, etc.) to prevent illicit environmental impacts from your site.
Mayfield is also unique because most of our competitors are “environmental companies” who are not even licensed to work with HAZMAT! Our competitors typically provide new college grads with no construction experience, or Industrial Hygienists who are usually specialized in indoor work. We provide the best of HAZMAT, environmental, and construction in a one-stop shop.
Most of our competitors are not used to the acutely toxic chemicals, safety hazards, and risks of long-term damage that we have spent decades training for on California’s Superfunds/CRCLA and fire disaster cleanups, where we managed tens of thousands of pounds of lead and toxic ash, furans, dioxins, and PCBs. We come much better prepared for the worst than our competitors.
Allow Mayfield’s HAZMAT Engineers, scientists, Certified Arborists, and Industrial Hygienists to be your on-call experts for anything related to hazardous waste, chemicals, toxic waste, contaminated soil, heavy metals, respiratory protection, and more.
Give us a call at (310) 880-9647 or Email Us and let’s get the job done together.
Some related services we provide (see photos below):
- environmental testing (surface, air, water, soil)
- Industrial Hygienist clearance
- compliance and reporting for AQMD, DTSC, Water Board, Coastal Commission
- workplace safety (chemicals, HAZMAT, gases)
- demolition, abatement, contaminated soil removal
- waterway and wetlands protection; environmental impact assessment
- biological studies, Arborist reporting
- contaminated soil management and vapor treatment
- safety inspections
- lab packing, HAZMAT manifesting, drum storage management
- vapor and gas monitoring
- community impact support and outreach
- HAZMAT and environmental spill/leak resolutions
- OSHA and Staff Training for HAZMAT, HAZWOPER, chemical, environmental safety
