R18-4-210. Total Coliform; Special Events

A. A water system that does not meet the definition of a public water system, but serves a large number of persons for a short duration of time, such as a special event, must take corrective action as required in R18-4-126 after receiving a positive coliform result, including taking additional samples until all samples test negative for total coliform and negative for E.coli if: 1. The total number of user-days exceeds 600. 2. A user-day is calculated by multiplying the number of days the event will run by the average number of persons expected to be served each day. B. The water system shall submit a minimum of two sample results to the Department at least seven days before the beginning of the special event. The water system shall submit a minimum of one additional sample result to the Department for each day of the special event.