Water Quality: Rocklin, MI
2 water systems • 292 people served
Multiple Health ViolationsWater Quality Summary
Rocklin is served by 2 public water systems with a combined service population of 292 people, and has 18 EPA Safe Drinking Water Act violations on record. Critically, 4 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Rocklin's violation count is 33% below the national average for Michigan. Contaminants associated with violations include Chlorine, E. coli.
Contaminants Found
Eye and nose irritation at high levels; long-term exposure above the MCL may cause liver and kidney damage.
Common source: Water treatment disinfectant added to kill harmful microorganisms
EPA limit: 4.0 mg/L (MRDL — Maximum Residual Disinfectant Level)
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Water Systems Serving Rocklin
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| ANDREWS ESTATES | MI0040246 | Groundwater | 178 | 1 |
| BARRON LAKE/ROSEBUSH | MI0040092 | Groundwater | 114 | 17 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Michigan
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.