To complete primarily environmental, geothermal and cathodic drilling, EWI’s Springfield office started with two Geoprobe® 6620s. As business grew, they added a 7822DT. “The 7822DT has 25 percent more power, yet it still fits into our gas station sites and goes under canopies without issues,” Yoakum said. “The oscillating mast is great for uneven surfaces and …
The EPA’s Pending Regulations on PFAS
Per- and polyfluoroalkyl substances (PFAS) are a group of man-made chemicals that have been used in a variety of industries around the globe. Unfortunately, scientists have found that PFAS pose a variety of risks to human health. For that reason, on February 14, 2019, the Environmental Protection Agency (EPA) announced its PFAS Action Plan, which …
New Sonic Drilling Rig Goes to Work
Cherokee Pass, MO – It was a cool, breezy morning in mid-March. Environmental Works Inc.’s brand new GeoProbe sonic drilling rig was in place and the drill positioned to break ground on a well site that had been giving our drilling team issues for years. They had been to the site at least once a …
Plume Stability & The Ricker Method
After soil and groundwater impact have been fully delineated and all risks to human health and the environment have been evaluated, the next step to getting a Certificate of Completion or No Further Action (NFA) status for your site is to confirm that any impact to the groundwater is decreasing or stable in concentration, and …
A New Definition for Waters of the United States
On December 11, 2018, the U.S. Environmental Protection Agency (EPA) and Department of the Army (Army) proposed a revised definition for “waters of the United States.” The government first issued the final rule in 2015, but that was soon updated, in November 2015. Why is this new definition so significant? It affects which waters fall …
