Category: Environmental Site Assessments
Posts
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Conducting Interviews with Government Officials for a Phase I ESA
Conducting interviews with local government officials is a critical and often underutilized component of a Phase I Environmental Site Assessment (ESA). While database searches, historical records, and site reconnaissance provide essential information, government interviews can reveal authoritative, site-specific insights that are not available elsewhere. Standards such as ASTM E1527-21 and regulatory frameworks like Ontario Regulation…
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Conducting Interviews with Property Owners and Occupants for a Phase I ESA
Conducting interviews with property owners, occupants, and other knowledgeable parties is a critical component of a Phase I Environmental Site Assessment (ESA). While records review and site reconnaissance provide essential data, interviews often uncover hidden or undocumented environmental risks that would otherwise go undetected. Under recognized standards such as ASTM E1527-21 and regulatory frameworks like…
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The Use of Drones in a Phase I Environmental Site Assessment
The Phase I Environmental Site Assessment (ESA) has traditionally relied on records review, site reconnaissance, and interviews to identify potential environmental contamination risks. While these core components remain unchanged under ASTM E1527-21, technology is rapidly enhancing how Environmental Professionals (EPs) collect and document site information. One of the most impactful advancements in recent years is…
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The Role of Photographs in Phase I Environmental Site Assessments
Photographs are one of the most powerful tools available to Environmental Professionals (EPs) conducting a Phase I Environmental Site Assessment (ESA). While written observations, historical records, and interviews form the backbone of the assessment, photographic documentation transforms those findings into verifiable, defensible evidence. Under standards such as ASTM E1527-21 and regulatory frameworks like the EPA’s…
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Documenting Drainage Patterns and Surface Water in a Phase I Environmental Site Assessment
A Phase I Environmental Site Assessment (ESA) is designed to identify potential environmental contamination liabilities through a structured, non-intrusive investigation. While much attention is often given to historical records and hazardous material storage, one of the most critical—and sometimes overlooked—components is the documentation of drainage patterns and surface water. Surface hydrology plays a central role…
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Identifying Hazardous Substances and Petroleum Products in a Phase I Environmental Site Assessment
A Phase I Environmental Site Assessment (ESA) is a critical step in environmental due diligence, designed to identify potential environmental contamination liabilities associated with a property. Conducted in accordance with ASTM E1527-21, the Phase I ESA focuses on determining the presence or likely presence of hazardous substances and petroleum products through a structured, non-intrusive process.…
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The Role of Visual Inspections in a Phase I Environmental Site Assessment
A Phase I Environmental Site Assessment (ESA) is a foundational component of environmental due diligence, conducted to identify potential or existing environmental contamination liabilities associated with a property. While historical records, regulatory database reviews, and interviews provide critical background information, visual inspections remain one of the most powerful and immediate tools available to the Environmental…
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The Review of Property Records in a Phase I Environmental Site Assessment
The review of property records is a critical, and sometimes underappreciated, component of a Phase I Environmental Site Assessment (ESA) conducted in accordance with ASTM E1527-21. While aerial photographs, fire insurance maps, and environmental databases often receive the most attention, property records provide a legal and administrative perspective that is essential for understanding a site’s…
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The Role of Environmental Database Reviews in Phase I Environmental Site Assessments
A Phase I Environmental Site Assessment (ESA) is a cornerstone of environmental due diligence in commercial real estate. While site inspections and historical research reveal visible and past conditions, environmental database reviews provide a regulatory and records-based perspective on potential contamination risks. Environmental database reviews involve the systematic examination of federal, provincial/state, and local regulatory…
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The Role of Historical Source Review in Phase I Environmental Site Assessments
A Phase I Environmental Site Assessment (ESA) is fundamentally an investigation into the past. While the site visit and interviews provide a snapshot of current conditions, it is the historical source review that reveals how a property has evolved over time—and whether past uses may have introduced environmental risks. Historical source review is one of…