US Water Score: A
Water Quality Summary
Tap water quality in Onaway, Michigan (49765) receives an overall grade of A (Lower record-based concern) with a score of 88 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Michigan state average of 88. Compared to the national average (75), this area performs significantly better. The area is served by Onaway, City Of, a groundwater system providing water to approximately 880 people.
A score of 88/100 means public water-system records for Onaway, MI show relatively few concerns in the US Water Score model. This is an internal score, not an EPA safety rating, and it does not guarantee conditions at any specific tap.
Common Questions
Based on public water-system records, Onaway, Michigan receives an internal US Water Score grade of A (Lower record-based concern) with a score of 88/100. This indicates relatively few system-level concerns in our model, but it is not an EPA safety rating and does not guarantee tap conditions inside individual homes.
ZIP code 49765 is served by 1 water system using groundwater sources, providing water to approximately 880 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.
No lead data is currently available for ZIP code 49765. This may mean lead testing results haven't been reported recently, or the serving water system uses monitoring waivers. You can request a free lead test kit from most water utilities or purchase a certified home testing kit.
Water systems serving Onaway, Michigan were not tested for PFAS under the EPA's UCMR5 monitoring program. This does not mean PFAS are absent — it means no data is currently available. UCMR5 testing covered approximately 10,000 of the largest water systems nationwide. You can request PFAS testing from your water utility or use a certified home test kit.
Water systems serving Onaway, Michigan have received 1 violation in the last 5 years. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.
Water in Onaway, Michigan shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.
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