Is Glenwood City, WI Tap Water Safe to Drink?
Graded A-, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
88.4/100
waterverge.com Glenwood City, WI — Water Quality Report
Glenwood City's drinking water received a grade of A- (88.4 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,102 residents using groundwater.
Lead levels were measured at 0.0 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 6 violations on record, including 0 health-based violations. 3 remain unresolved.
What to know about Glenwood City's water
Glenwood City ranks #111 out of 446 cities in Wisconsin for water quality, placing it above average in the state.
Glenwood City 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, Glenwood City may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Glenwood City, WI water safe to drink?
Glenwood City's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (88.4/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,102 residents using groundwater (wells).
Recent water quality updates for Glenwood City
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Glenwood City's water quality assessment. Grade: A- (88.4/100).
Contaminants: TTHM.
Contaminants: Coliform (TCR).
Contaminants: Lead and Copper Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Glenwood City's water supply.
Well within EPA limits.
Violation history
Glenwood City's water system has 6 total violations on record, including 0 health-based violations. 3 remain unresolved. 1 violation was issued in the last 5 years.
Where does Glenwood City's water come from?
Glenwood City's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,102 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Glenwood City residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Glenwood City'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.
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 Glenwood City
Industrial polluters nearby
Reported releases to surface water by facilities near Glenwood City, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
MCMILLAN ELECTRIC CO WOODVILLE, WI54028 | — | — | 9.3 mi |
BIG RIVER RESOURCES BOYCEVILLE LLC BOYCEVILLE, WI54725 | — | — | 9.3 mi |
OHLY AMERICAS BOYCEVILLE, WI54725 | — | — | 6.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Glenwood City compares by contaminant
Explore where Glenwood City ranks among all Wisconsin cities for specific contaminants.
Water source & infrastructure
Where Glenwood City's water comes from
Glenwood City'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 1,102 people through 1 water system.
Water systems serving Glenwood City
| System Name | PWSID | Population | Source |
|---|---|---|---|
| GLENWOOD CITY WATERWORKS | WI6560120 | 1,102 | GW |
How Glenwood City compares
Full Wisconsin rankings →Glenwood City's score of 88.4/100 is above the average of 65/100 among major Wisconsin cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Wisconsin rankings →About Glenwood City, WI
Wikipedia →Glenwood City is a city in St. Croix County, Wisconsin, United States. The population was 1,306 at the 2020 census. It is known as the "City of 57 Hills." Glenwood City is the site of the annual St. Croix County Fair.
Learn more about your water
Guides and resources related to Glenwood City's water quality findings.
Explore water quality across St. Croix
Frequently asked questions
Is Glenwood City, WI tap water safe to drink?
Glenwood City's water quality earned a grade of A- (88.4/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #111 out of 446 cities tested in Wisconsin.
What contaminants are in Glenwood City's water?
Lead was measured at 0.0 ppb (90th percentile). 6 violations are on record.
How is Glenwood City'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 Glenwood City?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Glenwood City's water come from?
Glenwood City's water is sourced from Groundwater. The city has 1 water system serving approximately 1,102 residents.
Is Glenwood City's groundwater at risk of contamination?
Glenwood City 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 6 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 Glenwood City's water compare to other cities?
Glenwood City ranks #111 out of 446 cities in Wisconsin (better than 75% of state cities) and #3476 out of 15744 cities nationally (78th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Glenwood City's small water system affect quality?
Glenwood City's system serves approximately 1,102 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 6 violations on record.