Is Mineral Point, WI Tap Water Safe to Drink?
Graded C — but Lead was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
64.8/100
waterverge.com Mineral Point, WI — Water Quality Report
Mineral Point's drinking water received a grade of C (64.8 out of 100), indicating fair water quality. The city's 1 water system serves approximately 2,487 residents using groundwater.
Lead levels were measured at 37.0 ppb (90th percentile), which exceeds the EPA action level of 15 ppb. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 30 violations on record, including 4 health-based violations. 6 remain unresolved.
What to know about Mineral Point's water
Mineral Point ranks #374 out of 446 cities in Wisconsin for water quality, placing it among the lowest-rated in the state.
Mineral Point 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.
Lead levels exceed the EPA action level of 15 ppb, which typically indicates aging lead service lines or lead solder in the distribution system. An NSF 53-certified filter is strongly recommended for drinking and cooking water.
As a small community water system, Mineral Point may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Mineral Point, WI water safe to drink?
Mineral Point's drinking water has significant quality concerns based on EPA testing data. With a grade of C (64.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,487 residents using groundwater (wells).
Recent water quality updates for Mineral Point
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Mineral Point's water quality assessment. Grade: C (64.8/100).
1 health-based. Contaminants: Lead and Copper Rule.
1 health-based. Contaminants: Public Notice, LEAD AND COPPER RULE REVISIONS.
1 health-based. Contaminants: Groundwater Rule.
Federal disaster declaration (FEMA DR-3249). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-496). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Mineral Point's water supply.
Exceeds EPA action level. Lead service line replacement and point-of-use filtration recommended.
Violation history
Mineral Point's water system has 30 total violations on record, including 4 health-based violations. 6 remain unresolved. 3 violations were issued in the last 5 years.
Flood & environmental risk
Iowa County has experienced 2 federally declared disasters since 1976. 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 Mineral Point's water come from?
Mineral Point's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,487 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Mineral Point residents can do
Recommended: NSF 53-certified pitcher or under-sink filter. This addresses the specific contaminants found in Mineral Point's water.
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.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Mineral Point
Industrial polluters nearby
Reported releases to surface water by facilities near Mineral Point, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
CUMMINS EMISSIONS SOLUTIONS MINERAL POINT, WI53565 | — | — | 0.7 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Iowa County has experienced 2 federally declared disasters since 1976. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Mineral Point's water supply, we recommend the following filter types.
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. | 37.0 | 15 | ppb | Inorganic | Over Limit |
Lead level trend (90th percentile)
See how Mineral Point compares by contaminant
Explore where Mineral Point ranks among all Wisconsin cities for specific contaminants.
Water source & infrastructure
Where Mineral Point's water comes from
Mineral Point'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 2,487 people through 1 water system.
Water systems serving Mineral Point
| System Name | PWSID | Population | Source |
|---|---|---|---|
| MINERAL POINT WATERWORKS | WI1250084 | 2,487 | GW |
How Mineral Point compares
Full Wisconsin rankings →Mineral Point's score of 64.8/100 is on par with the average of 65/100 among major Wisconsin cities. It outscores 5 of 10 nearby cities.
Nearby cities
View Wisconsin rankings →About Mineral Point, WI
Learn more about your water
Guides and resources related to Mineral Point's water quality findings.
Explore water quality across Iowa
Frequently asked questions
Is Mineral Point, WI tap water safe to drink?
Mineral Point's water quality earned a grade of C (64.8/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #374 out of 446 cities tested in Wisconsin.
What contaminants are in Mineral Point's water?
Lead was measured at 37.0 ppb (90th percentile). 30 violations are on record.
How is Mineral Point'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 Mineral Point?
Yes — lead levels exceed the EPA action level of 15 ppb. We recommend an NSF 53-certified filter or reverse osmosis system. Based on current data, basic filtration should suffice for additional peace of mind.
Where does Mineral Point's water come from?
Mineral Point's water is sourced from Groundwater. The city has 1 water system serving approximately 2,487 residents.
What health violations has Mineral Point's water system had?
Mineral Point has 4 health-based violations on record. The most recent violation was recorded in December 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 6 violations remain unresolved.
Is Mineral Point's groundwater at risk of contamination?
Mineral Point 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 30 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 Mineral Point's water compare to other cities?
Mineral Point ranks #374 out of 446 cities in Wisconsin (better than 16% of state cities) and #11617 out of 15744 cities nationally (26th percentile). The grade of C reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Mineral Point's small water system affect quality?
Mineral Point's system serves approximately 2,487 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 30 violations on record.