Routine Coliform Sampling for Water Utilities #106: Improper sampling is one of the most common errors in water quality analysis. Routine Coliform Sampling for Water Systems is a training video that provides operators with approved, step-by-step procedures for taking water samples for coliform testing. Particular attention is paid to the all-important step of selecting sampling sites. The procedures shown comply with the Total Coliform Rule and the Safe Drinking Water Act. This video will help your utility avoid false test results and violations, while it helps you maintain public confidence in the quality of the water supply. Renewal training credit - .25 hour (15 minutes) This video may be added to any other video order at no additional cost.