Section R. 325.11508 - Retention of records; enhanced treatment for Cryptosporidium(1) Subpart H supplies that are subject to the enhanced treatment for Cryptosporidium provisions in R 325.10611d, also called "supplies" in this rule, shall keep results from the initial round of source water monitoring under 40 CFR 141.701 (a), as adopted by reference in R 325.10720b, and the second round of source water monitoring under 40 CFR 141.701 (b), as adopted by reference in R 325.10720b, until 3 years after bin classification under R 325.10611e for the particular round of monitoring.(2) Supplies shall keep a notification to the department that they will not conduct source water monitoring due to meeting the criteria of 40 CFR 141.701 (d), as adopted by reference in R 325.10720b, for 3 years.(3) Supplies shall keep the results of treatment monitoring associated with microbial toolbox options under R 325.10611i to R 325.10611m for 3 years.Mich. Admin. Code R. 325.11508