Brownfields Site Assessment


Former Wastewater
Treatment Plant


From inspections/audits to technical document reviews to permitting to regulatory analysis to community outreach, Toeroek has the right staff and experience to solve our client’s toughest challenges. Our agile project management approach maintains client communication and flexibility as we plan and execute the scoped work to understand and then exceed client expectations while concurrently ensuring project schedule and cost efficiencies. We perform work on behalf of EPA in many regions giving us insight into regulatory hot-button issues, common compliance pitfalls, and effective strategies to maintain and improve performance.

School System

School System Expansion


This Brownfields Assessment covered a 12-acre site in a Hawaii school complex that was constructed over a former Navy landfill. The school system was seeking to redevelop a portion of the site and expand their facilities and needed to determine the extent of buried debris that could impact future construction. Our team performed an extensive geophysical survey that revealed significant amounts of buried debris that must be safely removed before additional construction and development can occur.

Gas Station

Former Gas Station


A local neighborhood development group in a St. Louis suburb sought to convert two abandoned parcels to productive use in community redevelopment. Among other uses, the site had been used as a gasoline station and auto repair business. Soil sampling at a former gasoline station revealed petroleum hydrocarbon contamination and quantified the soil to be removed so that the community could obtain additional grants and redevelop the property as part of a neighborhood revitalization plan.

Mining Site

Former Mining Site


This Brownfields Assessment covered a former silver mine and lumber mill located within 1,640 acres of forest land in the eastern Sierras of California. The applicant was particularly concerned about potential acid mine drainage leaching from tailings piles at the site. Our soil sampling included surface and subsurface soils and in addition to standard metals analysis we included leachability testing. The results showed that some of the tailings have the potential to leach acidic drainage into local waterways and the site will require some remediation before the land can be full returned to public recreational use.a