Phase I ESARequest a Quote! Phase II ESARequest a Quote!
Phase 1 Environmental Site Assessment Wisconsin

Phase 1 ESA

Phase 1 Environmental Site Assessments

Save Money with Phase I Environmental Site Assessments in Wisconsin and the Midwest

Property transactions throughout the Midwest rely on Phase 1 Environmental Site Assessments (Phase 1 ESA) for two reasons:

  • A Phase 1 ESA evaluates the potential existence of past and present contamination of a property and identifies possible contaminant sources, to accelerate treatment (if wanted or required).
  • Conducting a Phase 1 ESA satisfies due diligence protocols to help protect property owners from liability.
Phase I Environmental Site Assessment Company

Our environmental consultants conduct Phase 1 Environmental Site Assessments in Wisconsin, Iowa, Illinois, Indiana, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota and South Dakota to help you save time and money.

What is a Phase 1 Environmental Site Assessment?

A Phase 1 Environmental Site Assessment (or ESA) is an investigative process and a written report prepared on a specifically defined real estate holding to identify potential or existing environmental contamination liabilities affecting property value.

The ESA report is used in real estate transactions, leasing agreements, property development projects, and bank financing and foreclosures. A properly conducted Phase I ESA can provide an Innocent Landowner defense, potentially exempting the buyer from environmental liability, even for off-site contamination.

A Phase 1 ESA usually consists of the following:

  • Records
  • Site
  • User-provided
  • Interviews
  • Evaluation
    and Report

What Triggers a Phase 1 ESA Assessment?

Phase 1 ESAs can be completed for a wide variety of reasons, but are often triggered when:

  • A new lender intends to provide a loan for a real estate property
  • Purchase of property by a person or entity not previously on the title
  • Partnership buyout or principal redistribution of ownership
  • Application to a public agency for a change of use
  • An investigation by a regulation agency who suspects toxic chemicals or compounds on the site
  • Divestiture of properties
Phase 1 ESA environmental testing


American Society for Testing Materials (ASTM) Phase 1 Standards

Hyde's Phase 1 ESAs comply with the most recent Phase 1 Inquiry, described in the following standard:

E1527-21 ASTM Standard Practice for Environmental Site Assessments:  Phase 1 Environmental Site Assessment Process

Depending on need and desired scope, other standards that may apply to an environmental site assessment include the following:

E2247-08 ASTM Standard Practice for Environmental Assessments:  Phase 1 Environmental Site Assessment Process for Forestland or Rural Property

40 CFR Part 312 or "AAI 40" Brownfields All Appropriate Inquiry (AAI). Every Phase 1 ESA conducted with EPA Brownfields Assessment Grant funds must be conducted in compliance with AAI Final Rule at 40 CFR Part 312 (CERCLA). The AAI Final Rule provides that ASTM International Standard E1527-21 and E2247-16 are consistent with the requirements of the final rule and can be used to satisfy the statutory requirements for conducting AAI.

ISO14015:2001 Environmental Management - Environmental Assessment of Sites and Organizations (EASO)

What Else Can Be Included in a Phase 1 ESA?

Depending on client or real estate transaction needs, planned use of the property or the age of the real estate asset, a client may request additional inquiries as part of a Phase 1 ESA:

  • Asbestos-containing
    building materials
  • Lead-based paint
  • Biological agents
  • Lead contamination in
    drinking water
  • Cultural, Historical,
    and Ecological
  • Mold
  • Threatened and
    endangered species
  • Radon
  • Health & Safety
  • Regulatory
  • Indoor Air Quality
  • Wetlands
  • Debris flow
  • Earthquake hazards
  • Industrial hygiene
  • Vapor intrusion
  • PFAS chemical

Phase 1 ESA Checklist

Hyde Environmental follows a Phase 1 ESA checklist to inspect a property for concerns. Our process -honed from completing nearly 1,000 environmental site assessments- includes:

  • Interviews with accessible/readily-available adjacent businesses
  • Interviews with accessible/readily-available owner representatives, operators, occupants, and local government officials
  • Site reconnaissance
  • Researching & recording the history of the property
  • Public records review
Schedule a Phase 1 ESA

Understanding Environmental Liability

Federal or state regulations (e.g. Wisconsin environmental regulations) do not currently require a complete Phase 1 ESA from:

  • Purchasers of real estate
  • Purchasers of commercial leases
  • Acquirers of easements
  • Parties to loan transactions

Responsibility for an identified environmental liability could rest with the current or previous owner. For example, an owner selling a property with environmental damage may be held liable for future site remediation/cleanup services undertaken on or off the property. If environmental damage can be traced back to a time when a Phase 1 ESA might have identified the condition an owner who was unaware of the environmental damage may still be held liable.

What is Environmental Liability?

“Environmental liability is the legal obligation for a property or business owner to take responsibility for the ongoing association with a substance or activities which are the source of detrimental damage to the environment.”

Phase 1 ESA Reports Reduce Liability

A Phase 1 ESA minimizes or eliminates potential environmental liabilities and costs associated with a property by identifying areas in need of remediation. While Phase 1 ESA's are not required in every state, a previous owner may be subject to expensive legal costs if a subsequent owner retains remediation services to resolve contamination existing prior to their ownership of the property.

We use a Phase 1 ESA to determine if additional environmental assessment or remediation services are needed. We can establish whether the following conditions are present on a property:

  • Recognized environmental conditions (RECs):  Potentially harmful substances
  • Historical RECs:  Past harmful substances addressed through remediation
  • De Minimis conditions:  Non-threatening conditions
Phase I ESA Report Cost

We help clients identify and remediate environmental damage of water, groundwater or soil to avoid legal issues and/or unnecessary expenses. If you live or own a business in the Midwest, a Phase 1 ESA can save you from a lawsuit or reduce environmental cleanup costs.

Our Wisconsin-based environmental consulting firm has helped commercial property owners minimize or avoid legal issues related to:

How Much Does a Phase 1 Environmental Site Assessment Cost?

The short answer: The cost of a Phase 1 ESA depends on several factors and what you're trying to accomplish. Contact us for a quote regarding your specific situation

The long answer can be found here: How Much Does a Phase I ESA Cost?

Why Should I Choose Hyde Environmental?

Our team has decades of experience performing Phase 1 ESAs in the Midwest. We understand federal and state regulations, and we keep senior members of the staff involved in the Phase 1 ESAs we perform on properties in Wisconsin, Illinois, Minnesota, Iowa, North Dakota, South Dakota, Indiana, Missouri, Michigan, Kansas, Nebraska and more. Each of our environmental site assessments is completed in accordance with industry regulations and standards, including: 

Hyde Environmental Phase I ESA Midwest
  • United States Environmental Protection Agency (USEPA) Standards and Practices for All Appropriate Inquiries (AAI)
  • 40 CFR Part 312 aspect to the Comprehensive Environmental Response Compensation and Liability Act (CERCLA)
  • The American Society for Testing and Materials (ASTM) in the Standard Practice for Environmental Site Assessments: Phase 1 Environmental Site Assessment Process / Designation E1527-05/21 (ASTM Standard Practice E1527-05/21).

By conducting Phase 1 ESAs under the ASTM Standard Practice E1527-21, we are confident that your comprehensive environmental site assessments will limit your liability. The ASTM Standard Practice E1527-21 outlines a number of practices describing how Hyde personnel must conduct ESAs, including: 

ASTM Standard Practice E1527-13:  Basic Guidelines for The Phase 1 ESA Process

These services must be performed by an environmental professional.

Parties voluntarily choose Phase 1 ESAs when seeking a commercially prudent inquiry regarding the environmental condition of real estate.

Services are site-specific, including an on-site inspection.

Many other services outside of the Phase 1 ESA can be negotiated between the environmental professional and user including, but not limited to, investigations into asbestos, biological agents, ecological resources, endangered species, mold, and indoor air quality.

Those who conduct Phase 1 ESAs must keep information, data, etc. obtained during the Phase 1 process confidential.

Phase 1 ESAs cannot completely eliminate the potential for recognized environmental conditions related to a property to not be identified. A user of a Phase 1 ESA may also be further be limited, in that the extent of inquiry cannot be exhausted beyond the cost and time-efficient use of the resources utilized for the assessment.

A Phase 1 ESA may also be limited by the property itself. Not every property will mandate the same level of environmental assessment. Only the current conditions of the property, during the time of the assessment, can be judged; not the previous or developing state.

Should a Recognized Environmental Condition need further investigation or even remediation, Hyde Environmental will represent your interests to the fullest - finding the best path to closure while minimizing your short- and long-term liabilities and costs. Whether you’re facing a purchase, sale/divestiture, new lease, lease renewal, or lease termination transaction, you will want to identify and help limit/eliminate your environmental liability. Choose Hyde Environmental to conduct your next Phase 1 ESA. We’ll help you diagnose the condition of your property, and help you remove any potential environmental conditions.

Schedule a Phase 1 ESA
Contact our environmental consultants for more information or to schedule a Phase 1 Environmental Site Assessment in Wisconsin, Iowa, Illinois, Indiana, Minnesota, Missouri, Michigan, North Dakota, South Dakota, Kansas or Nebraska.

Phase 1 Environmental Assessments in the Midwest

Hyde Environmental ensures properties in many states across the Midwest are free of liability risks:

Phase 1 Environmental Site Assessments Case Studies