Minn. R. agency 144, ch. 4720, pt. 4720.3942
Current through Register Vol. 49, No. 29, 2025
The application of any type of filter and media must be supported by water quality data for the period of use sufficient to characterize any variation in water quality. All public systems using surface water or groundwater under the direct influence of surface water must have filtration systems that meet the minimum requirements of parts 4720.3945 to 4720.3955. Filtration systems must meet the requirements in parts 4720.3945 to 4720.3955.
Minn. R. agency 144, ch. 4720, pt. 4720.3942
Statutory Authority: MS s 144.383