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Air Pollution - Soil Vapor Intrusion Archives

Tonawanda Coke Corporation Enters into a $12 Million Settlement with DEC and EPA for Alleged Violations of State and Federal Environmental Law

The U.S. Federal Government and the State of New York jointly announced on May 11, 2015 a $12 million settlement with Tonawanda Coke Corporation for a litany of alleged environmental violations at TCC's western New York coke manufacturing facility.

Soil Vapor Intrusion Concern Prompts EPA to Support Revision to Phase I Environmental Site Assessment Protocol

The health threats posed by physical contact with contaminated soil or groundwater are well known. But increasingly, state and federal regulators are recognizing that harmful vapors from such contamination can be drawn into nearby buildings and pose a threat to the occupants. Known as soil vapor intrusion, this threat can come from undiscovered contamination beneath a building, or even from the remnants of previously remediated soil or groundwater.

Third Department allows a Soil Vapor Intrusion suit to move forward (Part II)

We continue with our recent discussion of the Aiken v. General Electric Co. case, No. 505023, __N.Y.S.2d__ (3d Dep't Dec. 4, 2008), discussed in a recent post. There is not much precedent for the Aiken case, as SVI issues are relatively new to the environmental law landscape and have not been litigated much yet.

Third Department allows a Soil Vapor Intrusion suit to move forward (Part I)

An intermediate state appeals court, the Appellate Division of State Supreme Court, Third Department (upstate) recently allowed a suit to go forward against GE for injury caused by soil vapor intrusion (SVI) where the contamination that was the source of the SVI was discovered 25 years ago.

Responsibility for Soil Vapor Intrusion Mitigation

So, who is responsible for mitigating this soil vapor intrusion? The New York State Department of Environmental Conservation (DEC) describes the conditions under which the state will conduct the vapor intrusion evaluations and the order in which the sites will be assessed. If exposures represent a concern due to indoor sources, then the state will provide guidance to the property owner and/or tenant on ways to reduce their exposure. If exposures represent a concern due to outdoor sources, then DEC will decide who is responsible for further investigation and any necessary remediation. Depending upon the outdoor source, this responsibility may or may not fall upon the party conducting the soil vapor intrusion investigation.

New York State Guidance on Soil Vapor Intrusion

Today we continue our discussion on soil vapor intrusion. Some states like New York have developed detailed vapor intrusion guidance of their own. New York's guidance explicitly raises concerns about reliance on modeling and exterior soil vapor screening and encourages indoor and sub-slab sampling where there is a reason to believe that vapor intrusion may occur. A joint strategy between the New York State Department of Environmental Conservation (DEC) and the New York State Department of Health (DOH) has recently been developed to evaluate vapor intrusion pathways at all of the remedial sites in New York. The goal of the policy and guidance documents is to conduct soil vapor intrusion evaluations as efficiently and effectively as possible at all such sites. DEC's strategy is entitled "Evaluating the Potential for Soil Vapor Intrusion at Past, Present, and Future Sites."

Soil Gas Vapor in the Workplace

If worker right-to-know laws are intended to require employers to inform their employees of the specific hazards based on specific chemicals to which their employees are exposed in the workplace, soil gas vapor regulation is intended to fill a significant gap, namely the wide range of pollutants that employers typically cannot know about and protect employees from. Soil gas vapor regulation is designed to set forth remedial steps that are required to be taken by property owners (who may or may not be the office building employers) in the face of uncontrollable and sometimes unknown sources of contamination in groundwater and soil beneath the building.

Outdoor sources of Indoor Air Contaminants

Pollen, dust, fungi, industrial pollutants, and general vehicle exhaust are common outdoor sources of indoor air pollution. Other sources include exhaust from vehicles on nearby roads or in parking lots or garages, loading docks, odors from dumpsters, unsanitary debris near outdoor air intakes, and cigarette smoke from office workers now required in most cities to take their cigarette breaks outside of building entrances. Another source is exhaust from the building itself or from neighboring buildings that is re-entrained, or drawn back into the building.

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