We offer well water testing for total coliform bacteria and nitrates. The laboratory method used is a presence/absence method for the identification of coliform bacteria which are used as an indicator of the bacterial quality of water. Testing for coliform bacteria will reveal whether your water supply may be contaminated with infectious organisms, but it will not provide a direct measure of pathogenic or disease-causing bacteria. For more information, please call us at (217) 423-6988 ext: 1134.