Rule 415. If water sample analyses from a test well or on-site water supply well for a development site less than 1 acre in size or a subdivision detects a contaminant in a concentration that exceeds the secondary maximum contaminant level in Table 1, then the department shall disclose by means of recorded advisories according to R 560.426, the nature of the impact on drinking water quality.
Table 1
Secondary Maximum Contaminant Levels
Contaminant | Secondary Maximum Contaminant Level in Milligrams Per Liter |
Chloride | 2 |
Hardness (as calcium carbonate) | 2 50 |
Iro | 0 |
Sn o diu | 2 |
Smulfate | 2 |
Corrosivity | Noncorrosive |
Mich. Admin. Code R. 560.415