MAS is fully functional as an essential business. Our offices are not currently open to the public. However, we are adhering to the recommended social distancing guidelines and have created a safe working environment in our offices by initiating screening practices, moving office spaces further apart and requiring the use of masks at all times. We are also allowing employees to work from home. In addition, our field staff are able to use separate vehicles, have access to hand sanitizers, and are required to use masks at all times

Site Assessment

MAS Environmental, LLC (MAS) has environmental professionals who design and implement cost-effective approaches to investigate and remediate contaminated sites. We have open and productive communication lines with appropriate federal, state, and local regulatory agencies that ensures our projects proceed to closure on time and on budget.  We have extensive experience in underground storage tank (UST) investigations and associated contamination remediation as well as dry-cleaning solvent contamination.


MAS conducts soil investigations to determine not only if contamination is present beneath site, but also to determine the extent of contamination.  Our team members regularly perform subsurface sampling activities by strategically calculating boring locations in order to best assess the property’s condition.  Once the boring locations have been determined, MAS will perform or oversee all field work and machinery used by personally selected subcontractors.  Upon soil analytical results, MAS will determine the next course of action, which may include soil excavation, chemical injection or remedial system design.

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Once the groundwater contamination has been identified, there are a number of options available:

●   Containing the contaminant to prevent migration onto neighboring properties.
●   Allowing the contaminate to naturally attenuate over time with periodic monitoring.
●   Leaving the groundwater in place and chemically treating it to reduce or remove the contaminant.
●   Pumping the water from the ground, treating it and returning it to the ground.

Highly skilled MAS employees will work with appropriate regulatory agencies to determine the number and location of monitoring wells for groundwater sampling.  These wells are used for analysis as well as groundwater flow direction determination and to measure fluctuations in groundwater depths over time.  MAS is highly skilled at developing groundwater monitoring plans that cover all realms of contaminants including petroleum hydrocarbons, polynuclear aromatic hydrocarbons (PAHs), solvents, and metals.

Once the site assessment has been completed, MAS will discuss the options with regulators and the client in order to determine the next course of action for the property.  Activities may include site closure with or without conditions, active remediation, or natural attenuation monitoring.

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