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Environmental Investigation & Remediation

what building owners need to know about lead

What Building Owners Need to Know about Lead

October 21, 2022

This year’s National Lead Poisoning Prevention Week, a collaborative effort between the Centers for Disease Control and Prevention (CDC), the U.S. Environmental Protection Agency (EPA), and the U.S. Department of Housing and Urban Development (HUD), will take place on October 23–29, 2022. The purpose of this event is to bring awareness to the dangers of

What Are the Site Assessment Requirements for an Underground Storage Tank System?

What Are the Site Assessment Requirements for an Underground Storage Tank System?

September 22, 2022

An underground storage tank (UST) system, which consists of a UST and the associated dispenser(s) and piping run(s), is defined as when 10% or more of the UST and associated piping volume is located below the ground surface. Whenever a regulated UST system is upgraded or removed, it is important for the owner/operator (O/O) or

What is the Difference Between UST and LUST Closures?

September 7, 2022

In the environmental consulting business, attaining “Closure” and meeting regulatory obligations is often the ultimate goal. When it comes to underground storage tank (UST) sites, the meaning of “Closure” is different, depending on the applicable governing Michigan regulation. Part 211 – Underground Storage Tank Regulations of the Natural Resources and Environmental Protection Act (NREPA), Public

MiDEAL – Michigan’s Extended Purchasing Program

August 30, 2022

MiDEAL is the State of Michigan’s extended purchasing program that allows municipalities, school districts, colleges, universities, hospitals and other public entities the ability to buy services, without bidding, from qualified vendors that have been awarded state contracts. Envirologic holds a three-year contract with the state to provide a range of environmental services to MiDEAL members.

Demolition Consulting and Oversight Services

August 23, 2022

Whether our clients are a private property owner, municipality, or developer, they appreciate that Envirologic offers a suite of comprehensive environmental services to assist with their project needs from planning to redevelopment. Having a consistent partner in each step of the environmental assessment and redevelopment process creates a streamlined, comprehensive approach that has been an

Working with Michigan’s Agribusiness Industry

August 9, 2022

Envirologic’s home state of Michigan has a sizeable agriculture industry, leading the nation in the production of numerous crops, including asparagus, tart cherries, black and cranberry beans, cucumbers, squash, and Niagara grapes. Michigan ranks second only to California in agricultural diversity with over 300 different commodities, and agribusiness contributes over $100 billion annually to the

Vapor Pin and Soil Gas Well Sampling

August 3, 2022

Due to the volatile nature of solvent and petroleum-related contaminants, the volatilization to indoor air pathway (VIAP) is often relevant during an environmental investigation at a manufacturing facility, dry cleaner, or gas station. The concern is that vapors, which off-gas from a contaminant body, will seep into a building and create unsafe conditions for the

Evaluating the GSI Pathway

June 16, 2022

When a contaminated site is located near a surface water body, there is a risk of contaminants in groundwater migrating into a lake or stream. If this is a potential route of conveyance, the Groundwater Surface Water Interface (GSI) pathway is taken into consideration during an exposure pathway evaluation. Since contaminant concentrations in groundwater do

When Should the Incremental Sampling Method be Used?

June 8, 2022

Common practice for soil sampling is to collect a discrete sample (soil from a known location and depth) from a few points and compare the analytical data to exposure criteria. In particular situations, discrete sampling is biased and not reproducible. For instance, if a soil sample is analyzed for arsenic and the aliquot of soil

Defining a NAPL Body

May 24, 2022

During an environmental investigation, contaminant exposure risk is evaluated through several pathways. These exposure pathways include: drinking water, direct contact, groundwater/surface water interface (GSI), and particulate or vapor inhalation. A conceptual site model (CSM), which is used to visualize the various exposure pathways that are applicable to a facility, is constructed through site characterization via

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