Skip to content

Contaminated Site Investigation and Cleanup

Environmental assessment and compliance - two people in hard hats working outside

We are the premier service provider for contaminated site investigation and cleanup on the west coast. Since our founding in 1998 we have been engaged on over 1,500 separate sites to characterize and remediate hazardous substances in soil gas, soil, groundwater, surface water, and sediments.

Farallon’s experience on contaminated sites includes characterization, feasibility testing, and remediation of complex commercial and industrial sites, historical landfills, and petroleum releases. 

Get In Touch

Over the past 20 years we have developed a top-tier team of technical professionals including experts in contaminant fate and transport characterization, modeling, and remediation engineering who have successfully developed and implemented cost-effective approaches for remediation and cleanup. Today, we employ a premier team of leading consulting experts in the industry for characterization and cleanup of releases associated with chlorinated solvents, per- and polyfluoroalkyl substances, petroleum hydrocarbons, and landfill gas mitigation.



Remedial Investigation

Our team has successfully completed Remedial Investigations at numerous commercial, industrial, Brownfield, and agricultural properties to characterize the extent and magnitude of contamination to various media. These include impacts to...

Read more

Vapor Intrusion Assessment and Mitigation

Vapor intrusion is rapidly becoming a key issue of concern for owners and prospective buyers of commercial and industrial properties – especially those with historical dry cleaning operations. The effect of changing regulatory...

Read more

Feasibility Studies and Remedial System Design

Regulatory agencies often require studies, which are a useful first step in the design process. We conduct Feasibility Studies to evaluate the comparative effectiveness, practicality, timeliness, and costs for potential remedial...

Read more

Environmental Forensic Assessments

We produce scientifically defensible outputs to assist attorneys, insurance companies, and industrial and commercial clients in better understanding their potential liability with upland and water facilities.

Read more

Regulatory Strategy and Cleanup Goal Development

To help our clients meet their project goals, we put our regulatory expertise to work to develop and implement practical, strategic solutions to a wide variety of local, state, and federal environmental regulatory issues. We are proud of...

Read more

Emerging Contaminants

We are among the leading firms in Washington State working with several parties to evaluate and ultimately remediate PFAS releases at multiple locations.

Read more

Sediment Services

We have specialized expertise in designing sediment investigations where sediments have been impacted by a wide range of contaminants including metals, refined petroleum compounds, polynuclear aromatic hydrocarbons, pesticides, and...

Read more

Aerial Inspection and Mapping

Our Federal Aviation Administration-licensed pilots capture high-resolution aerial imagery, which we use to monitor environmental construction activities and streambed restoration work. By incorporating a drone into data collection, we...

Read more

Project Experience

Farallon VOC Monitoring Probe

Farallon Volatile Organic Compound Monitoring Probe

Farallon was retained by a property owner to install the patented Farallon VOC Monitoring Probe and...

California Property Cleanup

California Property Cleanup

The Phase I ESA identified extensive petroleum staining on the unpaved surface and in the vicinity of...

Historic Skykomish School

Historic Skykomish School

A client’s former maintenance and fueling operations resulted in petroleum hydrocarbon contamination...

pesticide contaminated site

Able Pest Control

Farallon successfully completed the cleanup of a pesticide-contaminated site in a residential area of...

Buzz over Mission Clay

In-Situ and Ex-Situ Remediation Services at Former Mine

Farallon worked with multiple oversight agencies to characterize an off-site hydrocarbon plume that...

Mare Island

Sediment Removal and Bioremediation Reactive Wall at Mare Island

Following a feasibility study that identified the best solution to remediate the concerns, Farallon...

Redevelopment Support

Redevelopment Support

Farallon’s client had been in negotiations with the City of Oakland to redevelop a portion of the...

Creative Approach to Leaking UST Site

Creative Approach to Leaking Underground Storage Tank Site

When multiple attempts to treat recalcitrant contaminants with conventional technologies failed,...


Meet Our Team

headshot of Brani Jurista Brani Jurista Principal Geologist

Brani has over 23 years of professional experience providing consulting services in the environmental and oil/gas exploration industries. He has extensive experience designing remedial systems and implementing...

headshot of Chris Moody Chris Moody Principal Geologist

Chris has over 26 years of experience in providing oversight and technical assistance for remedial investigations/feasibility studies, sediment investigations and cleanup, surface and subsurface investigations,...

Eric Buer Eric Buer Principal Hydrogeologist, Washington Operations Manager

Eric is a Licensed Geologist and Hydrogeologist with more than 13 years of experience in environmental site assessment, remediation, and restoration. His project work includes scoping and managing large site...

James_Schwartz James Schwartz Principal Geologist, Quality Director

James is a well-seasoned advisor with 25 years’ experience in solving his clients’ complex environmental problems. While he specializes in due diligence and property redevelopment, he also handles a wide...

headshot of Jeff Kaspar Jeffrey Kaspar Principal Geologist

Jeff’s 28 years of experience allow him to anticipate client and project needs. His emphasis on developing effective working relationships with clients, regulators, vendors, and peers ensures that clients’...

headshot of Mark Havighorst Mark Havighorst Principal Engineer, Portland Office Manager

Mark has 20 years of experience providing consulting services for projects involving property acquisition, cleanup, redevelopment, and compliance. He has worked with clients in wood products, high-tech,...

Martin Hamann Martin Hamann Principal Geologist, California Operations Manager

With over 30 years’ experience in the environmental industry, Martin has worked on hundreds of environmental health and safety programs, regulatory negotiations, sustainability issues, site investigations,...

headshot of Richard Makdisi Richard Makdisi Principal Geochemist, Oakland Office Manager

Richard is a Principal Geochemist and has more than 36 years experience in hazardous management, geoscience engineering, geochemistry, and geohydrology. Richard has hands-on experience managing regional and site...

headshot of J. Riley Conkin J. Riley Conkin Principal Geologist

Riley is a licensed geologist and licensed hydrogeologist in Washington with more than 25 years of experience in contaminant hydrogeology and cleanup. His expertise includes investigation and delineation of...

Contact Us

Get In Touch

    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

    This website requires cookies to provide all of its features. For more information on what data is contained in the cookies, please see our Privacy Policy page. By continuing to use this website, you agree to our Privacy Policy.