Welcome to the Apex Blog

At Apex, everyone’s insights and experiences matter. Our vast array of scientists, engineers, technical staff, and company leaders, are dedicated to our clients and communities, and we are committed to sharing our insights and experiences. Whether it’s recommendations on how to adjust to regulatory and legislative changes or lessons learned on the job site, you can expect our talented staff to routinely share their knowledge.

As a leading water resources, environmental services, and health & safety firm, our blog aims to educate, encourage thought-provoking discussions, and promote advancement in the industries in which we do business.


On April 8, 2021, the US EPA released an updated toxicity assessment for perfluorobutane sulfonic acid (PFBS), which is a PFAS. The toxicity assessment was one of the key goals of the EPA’s PFAS Action Plan. It is expected that the EPA, states, local governments and tribal communities will use this toxicity assessment to determine whether to take action on PFBS to address human health risks in their communities. PFBS was used as a replacement chemical for PFOS, which was phased out of US manufacturing by 2002. PFBS has been identified in many products as well as in the environment across the US.

The Biden administration is rolling out sweeping changes that will affect environmental policy and as such, business practices and operating costs. Overall, the new administration is expressing a scientific approach to environmental policy and will look to limit environmental exposures and impacts, hold polluters accountable, reduce greenhouse gas emissions, improve our Nation’s climate resiliency and seek to improve Environmental Justice for those living in historically poor and marginalized communities.

From March 7-13, 2021 we celebrate National Groundwater Awareness Week to advocate for the protection and safety of groundwater. Water is one of the most precious natural resources. Read more to learn why!

The Multi-Sector General Permit (MSGP) is a National Pollutant Discharge Elimination System (NPDES) permit, which stems from the Clean Water Act (CWA). The 2015 MSGP for Stormwater Discharge with Industrial Activity expired on June 3rd, 2020 and the new 2020 MSGP does not go into effect until February 12, 2021. As a result of the landmark settlement between Waterkeeper Alliance and EPA (2d Cir. 15-02091) the new MSGP brings with it several major changes that permit holders must now follow.

The EPA published an interim guidance document that evaluates destruction and disposal technologies for PFAS and PFAS-containing materials, with a public comment period open through February 22nd. The guidance offers you options, not requirements.

As businesses like yours prepare to restart, ramp up, and return to normal production capacities, you can face many challenges including retraining your workforce and ensuring that COVID-19 implemented changes are understood by all levels of your organization.

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