Port Gamble, Washington
TRC performed extensive environmental investigations and remedial actions at several contaminated in-town properties in Port Gamble, Washington. TRC obtained no further action (NFA) determinations from the Washington State Department of Ecology (Ecology) for all of the in-town properties including a former gasoline/service station and a mortuary.
TRC was retained by Pope Resources to investigate oil seeping from the hillside behind the historical general store and museum in Port Gamble. Using a combination of geophysical surveys and targeted test pits TRC identified two 40-foot-long, single wall, leaking underground storage tanks that were likely installed in the early 1900s. The tanks contained Bunker C fuel oil and the released Bunker C followed abandoned product distribution piping and utility corridors. TRC designed and oversaw the removal of impacted soils and installed groundwater monitoring wells to demonstrate, to Ecology’s satisfaction, that groundwater was not impacted by the Bunker C release. Based on the site characterization and remediation work TRC successfully obtained an NFA determination for the site.
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Sharing Our Perspectives
Our practitioners share their insights and perspectives on the trends and challenges shaping the market.
EPA Issues Proposed Rule Designating PFOA and PFOS as Hazardous Substances
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The EPA has issued a pre-publication version of a proposed rule to designate two PFAS compounds as hazardous substances under CERCLA.
EPA to Include CERCLA Sites and RCRA Facilities in Site Remediation NESHAP
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EPA has published a proposed rule that would extend the requirements of the Site Remediation National Emission Standards for Hazardous Air Pollutants (NESHAP) regulations to previously exempt soil and groundwater remediation activities under CERCLA and RCRA.
TDU Webinar- Bioventing Residual LNAPL Plumes
August 27, 2024
TRC’s expert discusses the basics of hydrocarbon bioventing and bioventing system and well design. Two case studies are also provided to demonstrate examples of bioventing source remediation and the installation of a bioventing system at a refinery and a bulk fuel farm.
Microplastics ITRC Guidance Document and Training Available Soon!
February 23, 2023
Microplastic particles have been found in nearly every corner of the globe, but health effects and toxicity are only beginning to be understood. Because of their ubiquitous nature, microplastics present a challenge in both accurate sampling and source attribution. Microplastics are emerging as an environmental issue that regulators and industry will be increasingly focusing on in the coming years.
Odor Evaluation Services
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TRC is nationally recognized as an expert in the field of odor measurement, identification, modeling and control engineering. This presentation includes an overview of odor properties, odor evaluation, modeling and odor thresholds and outlines the four sensory properties: detectability, intensity, character and hedonic tone.
EPA Announces $2 Billion in Funding to Address Emerging Contaminants in Drinking Water
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Environmental Protection Agency Administrator Michael Regan announced $2 Billion in infrastructure funding to help the nation’s rural water supplies.
Metals 101
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Metals are naturally occurring elements in the Earth’s crust that enter the environment through natural processes. They can be found in groundwater, soil and sediment. The trophic transfer of these elements in aquatic and terrestrial food chains has important implications for wildlife and human health.
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TRC conducted two case studies to test different EA strategies. In both studies, chemical and biological reduction to stabilize metals at former CCR sites were evaluated.
Implementing bioremediation at environmental cleanup sites: TRC experts weigh in at leading industry conference
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TRC experts make several presentations at the Battelle conference about innovative approaches they have developed for implementing and monitoring bioremediation and the use of naturally-occurring or deliberately-introduced micro-organisms to break down environmental pollutants.
Iron sulfide: The “miracle mineral” in environmental remediation
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Whether it’s treating an arsenic spill at a railroad site in Wisconsin or releases of chromium and other metals or metal-cleaning solvents at manufacturing sites in California, New Jersey, and South Carolina, a mineral marrying iron and sulfur -iron sulfide- is emerging as a powerful and versatile tool in the environmental remediation toolbox.
TRC Awarded a Yahara WINS Grant
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TRC was recently awarded a Yahara WINS grant to develop a pilot scale simple aeration method for removing phosphorous from the discharge of manure digesters. The grant application was developed and submitted by: Bob Stanforth, Alyssa Sellwood, Mike Ursin, Ted O’Connell, Ken Quinn, and John Rice, who are members of multiple TRC CORE teams.
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The facts on evaluating exposure to wildlife
