Mich. Admin. Code R. 325.10420 - Annual consumer confidence reporting; contaminants for vulnerable subpopulation

Rule 420.

Pursuant to section 14 of the act, if any contaminants listed in table 1 of this rule are detected above a level of concern as indicated in table 1 of this rule, then the consumer confidence report shall include a description of the potential adverse health effects and the vulnerable subpopulation that may be susceptible to the level of contaminant detected. The community water supply may use the relevant language provided in table 1 of R 325.10405.

Table 1 Contaminants for vulnerable subpopulation reporting

Contaminant	Susceptible vulnerable subpopulation	Level of concern
Fecal coliform/ E. coli	Infants, young children, the elderly, and people with severely compromised immune systems.	Confirmed presence (any confirmed detect)
Copper	People with Wilsons disease.	1.3 mg/l (ppm)
Fluoride	Children.	4.0 mg/l (ppm)
Lead	Infants and children.	15.0 µg/l (ppb) until December 31, 2024; 12.0 µg/l (ppb) beginning January 1 2025
Nitrate	Infants below the age of 6 months.	10.0 mg/l (ppm)
Nitrite	Infants below the age of 6 months.	1.0 mg/l (ppm)

Notes

Mich. Admin. Code R. 325.10420

2001 AACS; 2003 AACS; 2015 AACS; 2018 MR 11, Eff. 6/14/2018