Minn. R. 4626.1005
WATER SAMPLING. 5-102.13
A. Drinking water from a public water system must be sampled and tested as required in chapter 4720. P2 B. Drinking water from a nonpublic water system must be sampled at the same frequency and tested for the same parameters as a public noncommunity transient water system. Sample collection protocols must follow the requirements in chapter 4720. P2