Michigan Administrative Code
Department - Environmental Quality
Water Resources Division
Public Bathing Beaches
Section R. 325.2102 - Sanitation and safety determinations
Current through Vol. 24-04, March 15, 2024
Rule 2.
(1) Bacterial concentrations in water at a bathing beach, as determined by standard methods, shall contain not more than 130 Escherichia coli (E. coli) per 100 milliliters, as a 30-day geometric mean. Compliance shall be based on the geometric mean of all individual samples taken during 5 or more sampling events representatively spread over a 30-day period. Each sampling event shall consist of 3 or more samples taken at representative locations within a designated sampling area. Bathing beach waters shall not contain more than a maximum of 300 E. coli per 100 milliliters. Compliance shall be based on the geometric mean of 3 or more samples taken during the same sampling event at representative locations within a defined sampling area.
(2) Chemical determinations shall follow standard methods and shall show that the water is free of chemical substances capable of creating toxic reactions or irritations to the skin or membranes of a bather or swimmer.
(3) Physical determinations shall show the water to be free of all of the following:
These rules were transmitted to the Joint Committee on Administrative Rules on October 24 , 1995. The rules were filed with the Secretary of State on November 21, 1995, while under consideration by the Joint Committee on Administrative Rules. Section 45(6) of Act No. 306 of the Public Acts of 1969, as amended, being S24.245(6) of the Michigan Compiled Laws, provides: "After receipt by the committee of the agency's letter of transmittal, the committee has 2 months in which to consider the rule. If the committee by a majority vote determines that added time is needed to consider proposed rules, the committee may extend the time it has to consider a particular proposed rule by 1 month to a total of no longer than 3 months ..."
