Virginia Gov Portal Skip to main content
Division of Consolidated Laboratory Services


The Commodities, Organic Compounds, Motor Fuels and Pesticides (COMP) Group performs laboratory testing using complex instrumentation (i.e. gas chromatographs, high performance liquid chromatographs, and mass spectrometers) to identify toxic organic compounds in samples such as air, water and soil.

Laboratory data generated by DCLS are used by state and federal programs such as the National Air Toxics Trends Stations (NATTS) and the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) to make decisions about air quality, waste discharge, drinking water treatment regulations, landfill operation, fertilizer and pesticide application.

Other laboratory testing activities in the COMP group:

  • Partnering with police departments, fire departments and emergency response agencies to evaluate decontamination efforts following petroleum spills such as overturned tanker trucks or train derailments
  • Testing the formulations of pesticides, herbicides and animal remedies (drugs and vaccines) to ensure these products meet the guarantees stated on the label
  • Analyzing over 4,000 gasoline and diesel samples each year from service stations across the Commonwealth to ensure that citizens are receiving a fuel product that meets ASTM standards