- Unocal Avila Beach Clean-up
- Casmalia Hazardous Wast
- US Bureau of Reclamation
- Vandenberg AFB
- March AFB
- County of Santa Barbara
- Santa Maria Landfill Groundwater Monitoring
- Texaco Bioremediation Project
- Bragg Bioremediation Project
- Chevron
- PEMEX
- PXP Petroleum
- Southern California Gas Company
- And Many More
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California Certified Small Business
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Professional Engineer-California & Colorado
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Registered Environmental Assessor
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General Contractor License #841453 with HSR addendum
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Qualified SWPPP Developer (QSD)
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Qualified SWPPP Practitioner (QSP)
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Women Owned Business
- Renae L. Ringstmeyer, President
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