The State Hygienic Laboratory (SHL) provides private well water testing services in Iowa. For concerns about private well water quality or if it has been more than a year since the last test was taken, it is recommended to test for two indicators of general safety and quality of drinking water, nitrate and coliform bacteria. You can request a test kit for nitrate and coliform bacteria from SHL. If you would like more information about other well water concerns such as taste, odor, or color SHL does offer additional water quality tests. If you would like to know more about well water testing check out the SHL frequently asked questions page.