Is Byron, MI Tap Water Safe to Drink?
Graded A-, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓
86.9/100
waterverge.com Byron, MI — Water Quality Report
Byron's drinking water received a grade of A- (86.9 out of 100), indicating good water quality. The city's 1 water system serves approximately 581 residents using groundwater.
Lead levels were measured at 2.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 13 violations on record, including 7 health-based violations. 1 remains unresolved.
What to know about Byron's water
Byron ranks #196 out of 520 cities in Michigan for water quality, placing it mid-range in the state.
Byron relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Byron may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Byron, MI water safe to drink?
Byron's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (86.9/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 581 residents using groundwater (wells).
Recent water quality updates for Byron
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Byron's water quality assessment. Grade: A- (86.9/100).
1 health-based. Contaminants: Combined Radium (-226 and -228).
1 health-based. Contaminants: Combined Radium (-226 and -228).
1 health-based. Contaminants: Combined Radium (-226 and -228).
Federal disaster declaration (FEMA DR-3225). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-774). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Byron's water supply.
Well within EPA limits.
Violation history
Byron's water system has 13 total violations on record, including 7 health-based violations. 1 remain unresolved. 4 violations were issued in the last 5 years.
Flood & environmental risk
Shiawassee County has experienced 5 federally declared disasters since 1975. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.
Where does Byron's water come from?
Byron's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 581 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Byron residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Byron's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
Shiawassee County has experienced 5 federally declared disasters since 1975. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 2.0 | 15 | ppb | Inorganic | Safe |
Lead level (90th percentile)
Latest reading: 2.0 ppb (2024)
EPA action level: 15 ppb
See how Byron compares by contaminant
Explore where Byron ranks among all Michigan cities for specific contaminants.
Water source & infrastructure
Where Byron's water comes from
Byron's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 581 people through 1 water system.
Water systems serving Byron
| System Name | PWSID | Population | Source |
|---|---|---|---|
| BYRON, VILLAGE OF | MI0001020 | 581 | GW |
How Byron compares
Full Michigan rankings →Byron's score of 86.9/100 is above the average of 70/100 among major Michigan cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Michigan rankings →About Byron, MI
Learn more about your water
Guides and resources related to Byron's water quality findings.
Explore water quality across Shiawassee
Frequently asked questions
Is Byron, MI tap water safe to drink?
Byron's water quality earned a grade of A- (86.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #196 out of 520 cities tested in Michigan.
What contaminants are in Byron's water?
Lead was measured at 2.0 ppb (90th percentile). 13 violations are on record.
How is Byron's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Byron?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Byron's water come from?
Byron's water is sourced from Groundwater. The city has 1 water system serving approximately 581 residents.
What health violations has Byron's water system had?
Byron has 7 health-based violations on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.
Is Byron's groundwater at risk of contamination?
Byron uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 13 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Byron's water compare to other cities?
Byron ranks #196 out of 520 cities in Michigan (better than 62% of state cities) and #4413 out of 15744 cities nationally (72th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Byron's small water system affect quality?
Byron's system serves approximately 581 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 13 violations on record.