21E environmental assessments

Metro Boston Property Inspections can help you to identify potential environmental risks before you buy or invest in your property.

Our comprehensive 21E environmental assessments evaluate potential contamination in real estate properties. Our expert team conducts thorough site evaluations, ensuring compliance with Massachusetts environmental regulations.

What is a Chapter 21E:

MASSACHUSETTS OIL AND HAZARDOUS MATERIAL RELEASE PREVENTION AND RESPONSE ACT

A 21E site assessment, also known as a MASSACHUSETTS OIL AND HAZARDOUS MATERIAL RELEASE PREVENTION AND RESPONSE ACT, is a process conducted to identify and evaluate potential or actual contamination at a property. This assessment is performed under the regulations of the Massachusetts Department of Environmental Protection (MassDEP) and is specific to Massachusetts.

The goal of the 21E site assessment is to determine whether a release of oil or hazardous materials has occurred, to assess the potential risks to human health and the environment, and to establish whether further action, such as a Phase II Comprehensive Site Assessment, is necessary. This process is crucial for property transactions, redevelopment projects, and compliance with environmental regulations.

What a 21E Covers

A 21E environmental assessment, often referred to as a Phase I Environmental Site Assessment (ESA), is a comprehensive investigation conducted to evaluate potential environmental liabilities associated with a property. Here are the key components typically covered in a 21E assessment:

The purpose of a 21E assessment is to provide potential property buyers, lenders, and developers with information about the environmental condition of a property to assess potential risks and liabilities before completing a transaction or proceeding with development. It helps ensure compliance with environmental regulations and minimize financial and legal risks associated with environmental contamination,

When is a 21E Environmental Site Assessment Required?

While many remediation companies will provide you with a certification of completion, most professional standards of practice recommend an independent environmental professional perform a post remediation verification, or clearance testing, to ensure the contractor actually completed the requirements in the scope of work and that the mold levels have been sufficiently reduced.

The assessment typically involves a comprehensive review of the property’s history, a site inspection, and possibly soil, water, and air testing to identify any contamination and assess its impact. The goal is to determine if the property is in compliance with the Massachusetts Oil and Hazardous Material Release Prevention and Response Act (Chapter 21E) and to outline any necessary remediation steps.

Andrea Gramolini

ASSOCIATE INSPECTOR

My name is Andrea, and I am the newest Associate Home Inspector at Metro Boston Property Inspections. I joined the team in May of 2023 and am learning quickly with such an experienced and dedicated team.

Before coming to Metro Boston Property Inspections, I worked in construction for over 7 years. I enjoy helping others with the process of purchasing their home or commercial property, as real estate is typically the largest investment of someone’s life. Knowing I am adding value to others’ experiences in the real estate purchasing process is very rewarding.

I look forward to working with you when the time is right for your first or next property.

Kristopher Crowell

ASSOCIATE INSPECTOR

My name is Kristopher. My attention-to-detail and fascination with building & materials science are well-suited to this work. I joined Metro Boston Property Inspections in October 2022.

I’ve spent the last 12 years as a project manager on hundreds of residential and commercial projects. Understanding the need for quality installation, maintenance, and repair, I provide unique insights into ensuring the systems we depend on function and last as we intend them to.

Buying a home is a pivotal moment for most people, and my role with MBPI is to help you navigate those crucial days. 

Mark Weinzierl

Licensed Home Inspector

My name is Mark, I am married and have 1 son! Previous to becoming a home inspector, I was a science and engineering teacher and later a property manager.

I joined the team at Metro Boston Property Inspections in 2021. It has been a great experience working with and learning from the many professionals here at MBPI.

For many, buying a home is the biggest financial decision they have ever made. As a licensed home inspector, I get to help people during this exciting and stressful process by teaching them about the homes they are hoping to buy.

I look forward to meeting you when the time comes to for you to purchase your first, or next home!

Robert Madzar

Residential Construction Home Inspector

My name is Rob Madzar I joined the Metro Boston Property Inspection team in 2019 after 30 years of working in residential construction.


  • In addition to my home inspector license, I have a construction supervisor’s license and a real estate agent’s license.
  • I am mold certified
  • I was looking to join an established inspection company with a proven track record of excellent Customer service, and high expectations of their employee’s professionalism. I found both at Metro Boston Property Inspections.
  • I look forward to helping show clients our high standards.



We provide real estate inspections for both residential and commercial clients ranging in size from small garden-style apartments up to 100,000 SF commercial properties. We provide our clients a computer-generated narrative report within 24 hours of the inspection for residential clients, and depending on the size, style and condition of the property, commercial reports may take up to 5 days.

Missy Boyle

Operations Manager

Hello, my name is Missy and I am the Operations Manager. I have been with MBPI since June of 2017. I came to MBPI with an extensive real estate background. I worked as a licensed real estate assistant for over 12 years at one of the largest real estate companies in the world.

I love helping clients and agents alike by educating them on our services and doing whatever I can to accommodate their busy schedules! I consider it a personal challenge to exceed everyone’s requests. I love talking with people and can relate to them and what they are going through because of my real estate background. I also love when it’s time to follow up with our clients and agents after the inspection…it is so wonderful to hear all the kind things they have to say about our inspectors and how thorough and wonderful they are!

Customer Service is a HUGE priority for all of us at Metro Boston Property Inspections, and we can’t wait to help you when you’re ready for us!

Tod Whiting

CEO and President

Hello, I am pleased to introduce myself to our past and future clients. I am a Massachusetts Licensed Home inspector, Certified Radon Measurement Technician, Certified Mold Inspector, Registered pest Inspector, and Certified Commercial Inspector.

Prior to the creation of MBPI, I was a franchisee with Allstate Home Inspection & Household Environmental Testing, 1998 to 2007. As a member of AHI, I was hired by corporate to provide training to new franchisees.
Training and coaching are passions of mine and I enjoy developing new inspectors in order to create the most consistent inspection experience there is.

I am a member of the International Association of Certified Home Inspectors (InterNACHI), Indoor Air Quality Association, and the Association of Radon Scientists and Technologists. I am an affiliate member of the Asian Real Estate Association of America.

For 22 years I coached competitive fastpitch softball from kindergarten instructional leagues to college showcase teams. I still play softball today on a co-ed team with my daughters.

My real passion is running my business and creating opportunities for our team, our clients and our referral partners to realize their dream life and to develop opportunities to make a real difference in our community and the world.