Drinking Water Quality Testing


To assure the quality of drinking water supplies by testing for chemical and microbiological contaminants.

What we do

  • Identify and quantify chemical and microbiological contaminants in public drinking water supplies as mandated by the federal Safe Drinking Water Act and state regulations.
  • Test private well water samples submitted by homeowners using the same methodology to ensure safe potable water supplies for individual homes.
  • Participate in the national Environmental Response Laboratory Network (ERLN) and the Water Laboratory Alliance (WLA), a network of laboratories qualified to provide water testing support to the EPA, states and municipalities in response to incidents of contamination that impair public water supplies.


  • Expanded the kinds of perfluoro- and polyfluoro- alkyl substituted compounds measured in drinking water samples in response to increasing concerns of their impact on safe drinking water supplies.
  • Maintain USEPA Safe Drinking Water laboratory certification to analyze regulated chemical and microbiological contaminants in drinking water.
  • Maintain capacity to identify harmful blue-green algae and measure the concentration of cyanotoxins released when harmful algal blooms occur in water supply reservoirs.