Is Capron, IL Tap Water Safe to Drink?
Graded A-, with 9 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
87.3/100
waterverge.com Capron, IL — Water Quality Report
Capron's drinking water received a grade of A- (87.3 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,343 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 72 violations on record, including 1 health-based violation. 9 remain unresolved.
What to know about Capron's water
Capron ranks #277 out of 891 cities in Illinois for water quality, placing it mid-range in the state.
Capron 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, Capron may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Capron, IL water safe to drink?
Capron's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (87.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,343 residents using groundwater (wells).
Recent water quality updates for Capron
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Capron's water quality assessment. Grade: A- (87.3/100).
Contaminants: Nitrate.
Contaminants: Revised Total Coliform Rule.
Contaminants: Chlorine.
Federal disaster declaration (FEMA DR-3230). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-997). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Capron's water supply.
Well within EPA limits.
Violation history
Capron's water system has 72 total violations on record, including 1 health-based violation. 9 remain unresolved. 5 violations were issued in the last 5 years.
Flood & environmental risk
Boone County has experienced 3 federally declared disasters since 1973. 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 Kishwaukee River, Piscasaw Creek.
Where does Capron's water come from?
Capron's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,343 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Kishwaukee River (river), Piscasaw Creek (river).
What Capron residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Capron'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.
Capron'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 Capron
Industrial polluters nearby
Reported releases to surface water by facilities near Capron, ranked by pounds discharged annually.
Total reported releases to surface water: 1 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
CAPRON MANUFACTURING CO CAPRON, IL61012 | Nickel compounds | 1 | 0.3 mi |
EXACTO LLC SHARON, WI53585 | — | — | 6.8 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Boone County has experienced 3 federally declared disasters since 1973. 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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Capron compares by contaminant
Explore where Capron ranks among all Illinois cities for specific contaminants.
Water source & infrastructure
Where Capron's water comes from
Capron'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 1,343 people through 1 water system.
Water bodies near Capron
Capron is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Capron
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CAPRON | IL0070100 | 1,343 | GW |
How Capron compares
Full Illinois rankings →Capron's score of 87.3/100 is above the average of 56/100 among major Illinois cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Illinois rankings →About Capron, IL
Wikipedia →Capron is a village in Boone County, Illinois, United States. It is part of the Rockford, Illinois Metropolitan Statistical Area. The population was 1,395 at the 2020 census, up from 1,376 at the 2010 census.
Learn more about your water
Guides and resources related to Capron's water quality findings.
Explore water quality across Boone
Frequently asked questions
Is Capron, IL tap water safe to drink?
Capron's water quality earned a grade of A- (87.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #277 out of 891 cities tested in Illinois.
What contaminants are in Capron's water?
Lead was measured at 0.0 ppb (90th percentile). 72 violations are on record.
How is Capron'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 Capron?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Capron's water come from?
Capron's water is sourced from Groundwater. The city has 1 water system serving approximately 1,343 residents.
What health violations has Capron's water system had?
Capron has 1 health-based violation on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 9 violations remain unresolved.
Is Capron's groundwater at risk of contamination?
Capron 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 72 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 Capron's water compare to other cities?
Capron ranks #277 out of 891 cities in Illinois (better than 69% of state cities) and #4145 out of 15744 cities nationally (74th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Capron's small water system affect quality?
Capron's system serves approximately 1,343 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 72 violations on record.