Category: LandWatch

Terradex, SpaceKnow Webinar Highlights Satellite Analytics for Monitoring Change Detection at Contaminated Sites

Owners of contaminated sites must comply with land use restrictions and institutional controls on their property and consistently monitor their sites for any breaches or prohibited uses. Adhering to these restrictions is key to preventing accidental exposure to contaminated soil or groundwater. The goal is to keep the remedy intact and ensure that people and the environment are protected.

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Situational Awareness: Connecting Environmental, Social, Governance (ESG) Performance to Long-Term Stewardship

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Terradex at 20: Keeping the Startup Feeling in Pursuit of Long-Term Stewardship

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Mochi and Terradex’s Long Term Stewardship Mission

The excavation limits of a new water main are marked on the street. Consistent with state regulation, the excavator calls in the excavation limits to the One-Call System. Soon the street is marked with utility locations. Surprisingly, the excavator receives a fax describing that the excavation site as occurring in a zone of environmental contamination. The responsible party who faxed the notice of contamination is pleased to have averted a hazardous substance release and to have protected the excavators and the public from harm. The excavator, however, is not pleased; their fixed bid did not anticipate the cost of handling contamination and work delays.

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NAESIP and Terradex Introduce Brownfield Loss Control Services

In October 2005, Bob Wenzlau of Terradex was appointed Task Group Chair to build a practice standard for Landowner Continuing Obligations. When complete, the practice standards will systematically improve the long-term public and environmental safety at brownfields while limiting financial liabilities brownfield redevelopers. The Task Group includes participation from USEPA, state government, brownfield redevelopers, environmental professionals and legal counsel.

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Long Term Stewardship at Vapor Intrusion Sites – Looking at the End Game

Long term stewardship (LTS)  is the “end game” of any vapor intrusion problem. Any smart player, considers the “end game” at the start and during play. Knowing the “end game” sets a smart direction for any stakeholder of a vapor intrusion – a responsible party, landowner, environmental agency staff, and the public.

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Forecasting an Engineering Control or Institutional Control Breach, A Study of Third-party Excavation Activity

Excavations by third-parties are inevitable near any cleanup site. Of concern to cleanup site managers, these unexpected events can breach institutional or engineering controls relied upon in a site’s cleanup remedy. Third-party excavators include utility companies, developers and contractors whose work is not part of the site cleanup process.

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Terradex Gains GSA Contract Vehicle to Serve Federal Clients

Terradex, a unique and pioneering provider of information-based long-term stewardship (LTS) services, is pleased to announce its award of U.S. General Services Administration (GSA) Schedule 899 Contract for Environmental Services (Contract number GA-10F-009AA).

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Off-site Groundwater Plumes – Terradex LandWatch Is A Risk Manager’s Best Friend

Groundwater contamination plumes often migrate off-site beyond the site where the chemicals were released.   The fate of the off-site plume poses a vexing risk management challenge for the regulator, potential responsible parties and even affected local governments. Terradex’s LandWatch is an efficient and effective adjunct to the risk management plan for an off-site plume.

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USEPA Issues Policy Guidance on Evaluation of Institutional Controls

The USEPA released on September 13, 2011 new guidance titled “Recommended Evaluation of Institutional Controls: Supplement to the Comprehensive Five Year Review Guidance”  providing recommendations for the monitoring and inspection of ICs during the CERCLA five-year review process.  The new USEPA guidance recommends that “ICs be mentioned specifically in the overall protectiveness statement when long-term protectiveness hinges on compliance with ICs.”

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