Is Saint Francisville, IL Tap Water Safe to Drink?
Graded C+, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
65/100
waterverge.com Saint Francisville, IL — Water Quality Report
Saint Francisville's drinking water received a grade of C+ (65 out of 100), indicating fair water quality. The city's 1 water system serves approximately 583 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 46 violations on record, including 0 health-based violations. 3 remain unresolved.
What to know about Saint Francisville's water
Saint Francisville ranks #782 out of 891 cities in Illinois for water quality, placing it among the lowest-rated in the state.
Saint Francisville 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, Saint Francisville may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 40 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Saint Francisville, IL water safe to drink?
Saint Francisville's drinking water has significant quality concerns based on EPA testing data. With a grade of C+ (65/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 583 residents using groundwater (wells).
Recent water quality updates for Saint Francisville
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Saint Francisville's water quality assessment. Grade: C+ (65/100).
Contaminants: Lead and Copper Rule, Nitrate.
Contaminants: Nitrate.
Contaminants: Nitrate.
Federal disaster declaration (FEMA DR-4116). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3230). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Saint Francisville's water supply.
Well within EPA limits.
Violation history
Saint Francisville's water system has 46 total violations on record, including 0 health-based violations. 3 remain unresolved. 40 violations were issued in the last 5 years.
Flood & environmental risk
Lawrence County has experienced 2 federally declared disasters since 2005. 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 Wabash River, Embarras River, White River.
Where does Saint Francisville's water come from?
Saint Francisville's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 583 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Wabash River (river), Embarras River (river), White River (river).
What Saint Francisville residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Saint Francisville'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
Flood & disaster history
Lawrence County has experienced 2 federally declared disasters since 2005. 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 Saint Francisville compares by contaminant
Explore where Saint Francisville ranks among all Illinois cities for specific contaminants.
Water source & infrastructure
Where Saint Francisville's water comes from
Saint Francisville'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 583 people through 1 water system.
Water bodies near Saint Francisville
Saint Francisville is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Saint Francisville
| System Name | PWSID | Population | Source |
|---|---|---|---|
| ST FRANCISVILLE | IL1010250 | 583 | GW |
How Saint Francisville compares
Full Illinois rankings →Saint Francisville's score of 65/100 is above the average of 56/100 among major Illinois cities. It outscores 7 of 10 nearby cities.
Nearby cities
View Illinois rankings →About Saint Francisville, IL
Learn more about your water
Guides and resources related to Saint Francisville's water quality findings.
Explore water quality across Lawrence
Frequently asked questions
Is Saint Francisville, IL tap water safe to drink?
Saint Francisville's water quality earned a grade of C+ (65/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #782 out of 891 cities tested in Illinois.
What contaminants are in Saint Francisville's water?
Lead was measured at 0.0 ppb (90th percentile). 46 violations are on record.
How is Saint Francisville'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 Saint Francisville?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Saint Francisville's water come from?
Saint Francisville's water is sourced from Groundwater. The city has 1 water system serving approximately 583 residents.
Is Saint Francisville's groundwater at risk of contamination?
Saint Francisville 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 46 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 Saint Francisville's water compare to other cities?
Saint Francisville ranks #782 out of 891 cities in Illinois (better than 12% of state cities) and #11596 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 Saint Francisville's small water system affect quality?
Saint Francisville's system serves approximately 583 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 46 violations on record.