Before mailing your sample, be sure to fill out the sample submission form provided by the lab. Your name, address, and the date and time of sample collection are required. Selecting a Laboratory Accurate laboratory results are no accident. They are obtained when highly trained personnel follow standard testing procedures approved by federal and state environmental and health agencies. In lowa, laboratories that perform water analysis for public water supplies must be certified by the lowa Department of Natural Resources.
Certification helps insure that public water supply testing is accurate.
You can benefit from laboratory certification too. Before selecting a lab, simply inquire if it is state certified to test public water supplies for the contaminants you wish to test for. Other Safety Precautions Laboratory analysis of water samples is one way to help assure a safe private water supply. But water testing, by itself, provides only part of the picture on the condition of your water system. To get a more complete picture of the potential for water system contamination, it is important to combine periodic water testing with careful water system inspection.