Is Iron Ridge, WI Tap Water Safe to Drink?
Graded A-, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
86.5/100
waterverge.com Iron Ridge, WI — Water Quality Report
Iron Ridge's drinking water received a grade of A- (86.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 937 residents using groundwater.
Lead levels were measured at 2.8 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 3 violations on record, including 1 health-based violation. 2 remain unresolved.
What to know about Iron Ridge's water
Iron Ridge ranks #143 out of 446 cities in Wisconsin for water quality, placing it mid-range in the state.
Iron Ridge 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, Iron Ridge may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Iron Ridge, WI water safe to drink?
Iron Ridge's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (86.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 937 residents using groundwater (wells).
Recent water quality updates for Iron Ridge
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Iron Ridge's water quality assessment. Grade: A- (86.5/100).
Contaminants: Lead and Copper Rule.
Federal disaster declaration (FEMA DR-3249). Hurricane event — may have impacted local water infrastructure.
1 health-based. Contaminants: Coliform (TCR).
Federal disaster declaration (FEMA DR-775). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Iron Ridge's water supply.
Well within EPA limits.
Violation history
Iron Ridge's water system has 3 total violations on record, including 1 health-based violation. 2 remain unresolved.
Flood & environmental risk
Dodge County has experienced 3 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. Local water sources include Rock River, Rock R.
Where does Iron Ridge's water come from?
Iron Ridge's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 937 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Rock River (river), Rock R (river).
What Iron Ridge 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.
Iron Ridge'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
Top industrial polluters within 10 miles of Iron Ridge
Industrial polluters nearby
Reported releases to surface water by facilities near Iron Ridge, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
MAYSTEEL LLC ALLENTON, WI53002 | — | — | 9.6 mi |
BOYD CORP ALLENTON, WI53002 | — | — | 9.9 mi |
BROAN-NUTONE LLC HARTFORD, WI53027 | — | — | 8.4 mi |
QUAD/GRAPHICS INC HARTFORD, WI53027 | — | — | 8.9 mi |
SIGNICAST LLC HARTFORD MANUFACTURING COMPLEX HARTFORD, WI53027 | — | — | 7.1 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites within 10 miles of Iron Ridge
Superfund sites nearby
Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.
- HECHIMOVICH SANITARY LANDFILL4.4 mi
Source: EPA Superfund National Priorities List
Flood & disaster history
Dodge County has experienced 3 federally declared disasters since 1976. 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. | 2.8 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Iron Ridge compares by contaminant
Explore where Iron Ridge ranks among all Wisconsin cities for specific contaminants.
Water source & infrastructure
Where Iron Ridge's water comes from
Iron Ridge'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 937 people through 1 water system.
Water bodies near Iron Ridge
Iron Ridge is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Iron Ridge
| System Name | PWSID | Population | Source |
|---|---|---|---|
| IRON RIDGE WATERWORKS | WI1140150 | 937 | GW |
How Iron Ridge compares
Full Wisconsin rankings →Iron Ridge's score of 86.5/100 is above the average of 65/100 among major Wisconsin cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Wisconsin rankings →About Iron Ridge, WI
Wikipedia →Iron Ridge is a village in Dodge County, Wisconsin, United States. As of the 2020 census, Iron Ridge had a population of 904. The village was founded on a railroad line, named for the iron mined in the area. Its ZIP code is 53035.
Learn more about your water
Guides and resources related to Iron Ridge's water quality findings.
Explore water quality across Dodge
Frequently asked questions
Is Iron Ridge, WI tap water safe to drink?
Iron Ridge's water quality earned a grade of A- (86.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #143 out of 446 cities tested in Wisconsin.
What contaminants are in Iron Ridge's water?
Lead was measured at 2.8 ppb (90th percentile). 3 violations are on record.
How is Iron Ridge'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 Iron Ridge?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Iron Ridge's water come from?
Iron Ridge's water is sourced from Groundwater. The city has 1 water system serving approximately 937 residents.
What health violations has Iron Ridge's water system had?
Iron Ridge has 1 health-based violation on record. The most recent violation was recorded in January 2012. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Iron Ridge's groundwater at risk of contamination?
Iron Ridge 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 3 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 Iron Ridge's water compare to other cities?
Iron Ridge ranks #143 out of 446 cities in Wisconsin (better than 68% of state cities) and #4683 out of 15744 cities nationally (70th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Iron Ridge's small water system affect quality?
Iron Ridge's system serves approximately 937 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 3 violations on record.