
Two generations of HAZMAT, Disaster Cleanup, & Soils experience – since 1985.
* Top 10 of 2025-6 by Environmental Business Review
* Top 10 of 2024 & 25 by Environmental Business Outlook
*Seen on “Jason Alexander Show” for Palisades/Eaton Fire Cleanup* (Audio or Video)
*Featured on TV’s “World’s Greatest” on Disasters of 2026
For two generations, we have served California and the West Coast as MBE/DBE General Contractors for environmental cleanups, disaster response, environmental testing/monitoring, heavy metals remediation, carcinogen mitigation, fire debris removal, land clearing/wildfire, demolition, HAZMAT/decontamination, air monitoring, contaminated soil, arborist/tree care, sensitive ecosystems, invasive species/biology, infectious disease, mold/ERMI testing, water testing, narcotics/meth labs, PFAS monitoring, lithium/battery fires, soot/fire/smoke damage, compaction testing, subject matter expert/consult, employee OSHA training, green infrastructure, cannabis compliance, soil/erosion management, landlord advocacy (evictions, hoarding, drugs, homeless), toxin remediation (PERC, VOCs, PFAS, PCBs, Dioxins), permit compliance (AQMD, DTSC, EPA, Water Board), radioactive materials, and more.
We are MBE/DBE/Federal/Tribal/Military/Public Works/GSA and Los Angeles-Preferred contractors. All laborers HAZWOPER & Bloodborne-Pathogen Certified. HAZMAT/environmental engineers, industrial hygienists, Certified Arborists, and QSDs/QSPs/QISPs on staff.
Call Us : (310) 880-9647
Select Environmental Specialties


Fire Debris Removal &
Disaster Cleanups
Disaster response, fire debris removal, demolition, land clearing, heavy metals/carcinogens, air monitoring, soil sampling, smoke damage, hazard tree removal. HAZMAT Engineers on staff.


Weed Abatement, Firescaping, Land Clearing/Forestry
SoCal’s only HAZWOPER service for land clearing, firescaping, forestry, tree removal, arborist/tree care, spraying and weed abatement, Integrated Pest Management, and more. LTOs/Arborists on staff.


Contaminated Soil, Air Monitoring, Soil Remediation
HAZMAT, contaminated soils, heavy metals, PFAS, PERC, VOCs, soil sampling, excavation, Underground Storage Tanks (USTs), dust/air monitoring, AQMD-1166, waste profiling, and more.


Water Testing, Legionella, Water Board Compliance
Water testing for public health and Water Board compliance, including Legionella, PFAS, dioxins, Radon, coliform, metals, pesticides, wetlands protection, etc. QSDs/QISPs/QSPs on staff.


Environmental Testing, Soil/Air/Surface
Testing in all hazardous environments, including radioactive, fire/smoke damage, PFAS, mold, hexavalent chromium, Radon, dioxins, PCBs, heavy metals, battery fires. Industrial Hygienists on staff.


Mold Testing/ERMI/Disease
Comprehensive mold and microbiological testing support, including ERMI, surface, air testing; West Nile Virus/Hantavirus; legal and medical consulting, and more. Industrial Hygienists on staff.


Subject Matter Expert
& Legal Consult
Expert legal/medical consulting for all HAZMAT, environmental, disaster, fire, mold, health/safety, warehouse fires, toxicological hazards; landlord and tenant advocacy, and more.


Arborist Reports/Tree Care
Comprehensive “tree doctor” services, including arborist reports, bacteriological and fungal testing, environmental impacts, sensitive wetlands, Integrated Pest Management, bark beetles, and more.


Drug Labs/Narcotics
& Battery Fires
Meth, MDMA, fentanyl lab cleanups; residue testing for narcotics, battery fire impacts and carcinogens, legal consult, landlord/tenant advocacy, etc. HAZMAT Engineers on staff.

More Licensing & Authority than our Competitors
General Engineering “A”, Hazardous Substance Removal, C-27 (Landscaping), C49 (Tree/Palm), Licensed Timber Operator (LTO) Certified Arborists, Industrial Hygienists on staff, Lead Inspectors, Mold Inspectors, Radon/Radioactive, Biohazard/Crime Scene/Meth Lab Remediation Specialists, Fire Restoration Specialists, Indoor Air Quality Professionals, Pest Control/Integrated Pest Management, Trauma Waste, Stormwater licenses (QSD, QSP, QISP, CPESC, CISEC, WPCPM), and more…

MBE/DBE/Federal/Public Works means we’re your Invaluable Bidding Partner
Certified Minority-Owned (MBE), Disadvantaged (DBE), Small Business (SB-PW), Federal (8A, GSA, SAM), and Tribal/Native American, Public Works licensed, CALTrans approved, Federal Pipeline/DOT contractor, certified payroll/prevailing wage, fully bonded and insured, and all HAZWOPER certified and OSHA Bloodborne Pathogen labor. CalFire Incident Safety Awareness certifications, T-1 California/OSHA Annual Trenching/Excavation Permit…

Broader Scope means more Comprehensive Solutions
environmental cleanups, testing/monitoring, heavy metals remediation, carcinogen mitigation, fire debris removal, land clearing/wildfire, demolition, HAZMAT, air monitoring, contaminated soil, arborist/tree care, sensitive ecosystems, infectious disease, mold/ERMI testing, water testing, narcotics/meth labs, PFAS monitoring, lithium/battery fires, soot/fire/smoke damage, compaction testing, subject matter expert/consult, green infrastructure, cannabis compliance, soil/erosion management, landlord advocacy, PERC, VOCs, PFAS, PCBs, Dioxins, permit compliance, radioactive materials, and more…
See why we beat our Competitors…
About the Mayfield Family Business
Top 10 of 2024 and Top 10 of 2025 by Environmental Business Outlook. Mayfield Environmental Engineering (dba Mayfield Environmental Solutions) is a California-based General Engineering contractor servicing the West Coast for environmental cleanups, disaster response, heavy metals/carcinogen remediation, fire debris removal/land clearing, demolition and HAZMAT, contaminated soils, arborist/tree care, sensitive ecosystems, PFAS monitoring, lithium/battery fires, toxin remediation (PERC, VOCs, PFAS, PCBs, Dioxins), permit compliance (AQMD, DTSC, EPA, Water Board), radioactive material testing, and many more services for public works, private developments, and major Superfund/CRCLA sites. We were among the largest private HAZMAT contractors in the Palisades/Eaton Fire Disaster and many other disasters. We are certified Minority-Owned/MBE, Disadvantaged Business/MBE, and Small Business-Public Works/SBPW. Previously as Mayfield Enterprises, we have over two generations of high-profile project management experience since 1985. We have contracted with the City of Cerritos, Norwalk, Carson, Santa Fe Springs, and more governments in addition to high-risk environments like Exide Superfund, Ascon Superfund, Cal Compact Landfill, BKK Landfill, China Lake Naval Base, Camp Pendleton, Torrance Chemical Superfund, OII Superfund, WDI Superfund, and more for decades. The company is family-owned and currently headed by CEO James Mayfield and based out of Long Beach with our main yard in the City of Carson. We are registered for Public Works in California, CalTRANS, and Federal & Tribal projects.
See our Licensure, Experience, Famous Projects, and History…










