Los Angeles Vapor Intrusion Mitigation System Company
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Los Angeles Vapor Intrusion Mitigation System Company

ByGeo Forward

Los Angeles Vapor Intrusion Mitigation System Company To ensure the safety of indoor spaces in modern buildings, a Vapor Intrusion Mitigation System (VIMS) stands as a crucial barrier against the infiltration of harmful soil gases. This is particularly essential for developments situated above existing soil contamination plumes and cases of groundwater pollution. VIMS, tailored to…

City of Long Beach Methane Gas Zone Mitigation
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City of Long Beach Methane Gas Zone Mitigation

ByGeo Forward

City of Long Beach Methane Gas Zone Mitigation A City of Long Beach Methane Gas Zone represents areas with high levels of subsurface natural gas and methane soil gas. These areas present explosion hazards for buildings, due to biogenic and petrogenic gases of decomposing petroleum deposits, and landfills. As a result, the Building and Safety Bureau…

Human Health Risk Assessment (HHRA)
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Human Health Risk Assessment (HHRA)

ByGeo Forward

Human Health Risk Assessment (HHRA) A Human Health Risk Assessment (HHRA) evaluates the potential dangers to people where there may be some exposure to chemical contaminants in soil, groundwater, ambient air, or soil gas. Typically, the recommendation for an HHRA stems from the Phase 1 Environmental Site Assessment process. However, the awareness for indoor air…

Indoor Air Quality Testing & Sampling
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Indoor Air Quality Testing & Sampling

ByGeo Forward

Indoor Air Quality Testing Indoor air quality testing involves collecting and containing samples of ambient air from inside a building and analyzing them to determine what chemicals may be affecting human health and safety. Sources of pollution may exist on- or off-site and can accumulate above- or below-ground. Indoor air quality testing is necessary at…

What is a Remedial Action Plan?
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What is a Remedial Action Plan?

ByGeo Forward

Remedial Action Plan A Remedial Action Plan, or Remediation Plan is a guideline that proposes a series of engineering and geological procedures, in order to feasibly perform contamination cleanup actions over a strategic period of time. When pollution exists on a property, at levels requiring cleanup, it is important to design the most appropriate course…

Remediation after Phase 2 Environmental Site Assessment
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Remediation after Phase 2 Environmental Site Assessment

ByGeo Forward

Remediation after Phase 2 Environmental Site Assessment Contamination Remediation refers to the process of cleaning up a property with contamination issues that are usually discovered during the Phase 1 Environmental Site Assessment (ESA) and Phase 2 Subsurface Investigation process. Today, there are a variety of remediation methods and technologies to apply at a site. And…

What is Landfill Methane Gas Testing?
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What is Landfill Methane Gas Testing?

ByGeo Forward

Landfill Methane Gas Testing Landfill methane gas testing is the process by which professional geologists and engineers determine the concentration of landfill gas between soil grains underground. Usually, this is a requirement by environmental regulatory agencies and building departments for the protection of public health. In fact, quarterly landfill gas testing is a common regulation…

All Appropriate Inquiries (AAI)
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All Appropriate Inquiries (AAI)

ByGeo Forward

All Appropriate Inquiries (AAI) The term “All Appropriate Inquiries” (AAI) is defined as the official EPA and ASTM method to inquire about current or historical environmental conditions that may exist on a property, in relation to their legal and environmental liabilities during a commercial real estate transaction. The All Appropriate Inquiries “Final Rule” is 40 CFR…

Historical Recognized Environmental Condition (HREC)
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Historical Recognized Environmental Condition (HREC)

ByGeo Forward

Historical Recognized Environmental Condition (HREC) The term Historical Recognized Environmental Condition (HREC) refers to a past release that doesn’t pose a present land-use restriction, nor does it warrant recommendations for clean-up. The HREC is one of the various conditions of a Phase 1 Environmental Site Assessment. The definition derives from publications by the American Society…

Recognized Environmental Condition (REC) Definition
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Recognized Environmental Condition (REC) Definition

ByGeo Forward

Definition of Recognized Environmental Condition (REC) What is a Recognized Environmental Condition (REC)? A simplified definition of a recognized environmental condition (REC) is any occurrence whereby: 1). actual pollution of the environment is occurring; 2). the threat of pollution of the environment occurs; or 3). there is a preponderance of evidence suggesting possible pollution of…

Controlled Recognized Environmental Condition (CREC)
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Controlled Recognized Environmental Condition (CREC)

ByGeo Forward

Controlled Recognized Environmental Condition (CREC) CREC stands for Controlled Recognized Environmental Condition. This terminology derives from a Phase 1 Environmental Site Assessment and represents one of the few categories of environmental concerns. A CREC is a release that has potentially achieved corrective action, but where contaminants still may remain, and where engineering controls or activity use…

De Minimis Condition in Phase 1 ESA Reports? 
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De Minimis Condition in Phase 1 ESA Reports? 

ByGeo Forward

 De Minimis Condition in Phase 1 ESA Reports? A de minimis condition, as per the ASTM E1527 Standard for Phase 1 Environmental Site Assessment reports, is a property condition that doesn’t pose a threat to human health or the environment. Although this is a notable concern to document, it does not warrant further action or…

Vapor Intrusion & Soil Vapor Testing
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Vapor Intrusion & Soil Vapor Testing

ByGeo Forward

Vapor Intrusion & Soil Vapor Testing A vapor intrusion investigation entails the study of toxic soil gases that migrate through the subsurface and into the living spaces of structures aboveground. Geologists perform soil vapor tests to evaluate the presence of vapor-phase contamination underground. Additionally, the chemical content of the vapor samples is examined for toxicity…

Superfund: CERCLA Innocent Landowner Defense
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Superfund: CERCLA Innocent Landowner Defense

ByGeo Forward

Superfund: CERCLA Innocent Landowner Defense Superfund is CERCLA which is an acronym for the “Comprehensive Environmental Response, Compensation, and Liability Act.” The CERCLA Innocent Landowner Defense policy was passed on December 11 in 1980, following the realization that historical hazardous waste disposal and materials handling practices were grossly negligent. The law grants Federal authorities to…

What is a Phase II ESA in Real Estate Due Diligence?
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What is a Phase II ESA in Real Estate Due Diligence?

ByGeo Forward

What is a Phase II ESA in Real Estate Due Diligence? The term “Phase II ESA” is short for Phase II Subsurface Investigation. It is an environmental due diligence report that typically follows the Phase 1 Environmental Site Assessment process when recognized environmental conditions are apparent. During the commercial real estate due diligence period, this…