The vast majority of BESST’s experience comes from servicing over 750 public supply wells just in California alone. Contaminants affecting the groundwater resources of public supply wells are variable ranging from inorganics, volatile organic compounds (VOCs), metals, and emerging contaminants such as Per-Poly-fluoroalkyls (PFAS). BESST’s expertise and services in downhole well diagnostics have enabled a majority of the water agencies governing these 750 public supply wells to essentially reduce their contamination levels, bring out-of-compliance wells back into compliance, and ultimately remove the costs for treatment. In the cases that well modification and-or rehabilitation are not appropriate, BESST has been able to provide clients with the scientific knowledge and approach on how to operate their well(s) and manage their aquifer(s).

For instance, in the Chino basin, BESST has been successful in reducing nitrate levels below its respective 10 mg/L maximum contaminant level (MCL) through the use of well modification by packer installation.