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SMA serves industrial manufacturers, insurance companies, real estate developers, state and local agencies, and energy companies. We have decades of experience in the investigation and remediation of petroleum hydrocarbons, chlorinated solvents, PCBs, and heavy metals in soil and groundwater. We are always striving to reduce costs and improve effectiveness through the use of the most practical remediation technology available for the environmental liabilities that our clients face.

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SMA has successfully investigated and remediated hundreds of sites across the United States. We are experts at understanding sub-surface contaminant migration processes and source zone delineation. We have remediated sites with impacts from petroleum hydrocarbons, chlorinated solvents, heavy metals, and PCBs. We bring this experience to bear for each of our clients, no matter the scale of their project. Feel free to explore our past projects, as well as some that we are currently working on.

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  About Us

At SMA, we leverage our decades worth of environmental investigation and remediation experience to deliver economically and environmentally sound solutions for our clients. We combine our environmental investigation and remediation experience with cutting edge data management and visualization processes to ensure that we accurately define source areas, delineate subsurface impacts, and propose the most cost effective remediation technologies for our clients to reduce or eliminate the environmental risks that they may be facing.

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The people at SMA work hard to achieve site closures, identify new investigative and remedial technologies for the environmental field, and identify precedent setting environmental law cases that are applicable for our clients. Find out more about the recent news at SMA! Be sure to also follow us on Facebook, LinkedIn, and YouTube!

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Groundwater Remediation with Edible Oil

Time-lapse animations showing how St. John-Mittelhauser and Associates (SMA) remediated groundwater contamination from spills of chlorinated solvents at three different sites using injections of emulsified edible oil. The remedial design, oil injections, and time-lapse modeling were completed by SMA. Click on the red YouTube logo at the top the webpage to view more animations by SMA.