Is Hoyleton, IL Tap Water Safe to Drink?
Graded A-, with 4 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
86.2/100
waterverge.com Hoyleton, IL — Water Quality Report
Hoyleton's drinking water received a grade of A- (86.2 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,678 residents using purchased surface water.
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 10 violations on record, including 1 health-based violation. 4 remain unresolved.
What to know about Hoyleton's water
Hoyleton ranks #334 out of 891 cities in Illinois for water quality, placing it mid-range in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Hoyleton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Hoyleton, IL water safe to drink?
Hoyleton's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (86.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,678 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Hoyleton
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Hoyleton's water quality assessment. Grade: A- (86.2/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: Total Haloacetic Acids (HAA5).
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 Hoyleton's water supply.
Well within EPA limits.
Violation history
Hoyleton's water system has 10 total violations on record, including 1 health-based violation. 4 remain unresolved. 3 violations were issued in the last 5 years.
Flood & environmental risk
Marion County has experienced 1 federally declared disaster 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.
Where does Hoyleton's water come from?
Hoyleton's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 1,678 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.
What Hoyleton residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Hoyleton'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 Hoyleton
Industrial polluters nearby
Reported releases to surface water by facilities near Hoyleton, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
PURINA ANIMAL NUTRITION LLC - NASHVILLE IL NASHVILLE, IL62263 | — | — | 7.4 mi |
ANTOLIN NASHVILLE NASHVILLE, IL62263 | — | — | 7.2 mi |
NASCOTE INDUSTRIES NASHVILLE, IL62263 | — | — | 7.5 mi |
GRAPHIC PACKAGING INTERNATIONAL LLC CENTRALIA, IL62801 | — | — | 8.0 mi |
SWAN SURFACES LLC CENTRALIA, IL62801 | — | — | 8.1 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Marion County has experienced 1 federally declared disaster 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 Hoyleton compares by contaminant
Explore where Hoyleton ranks among all Illinois cities for specific contaminants.
Water source & infrastructure
Where Hoyleton's water comes from
Hoyleton's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by private ownership and serves approximately 1,678 people through 2 water systems.
Water systems serving Hoyleton
| System Name | PWSID | Population | Source |
|---|---|---|---|
| HOYLETON RWC | IL1895400 | 1,020 | SWP |
| HOYLETON | IL1890200 | 658 | SWP |
How Hoyleton compares
Full Illinois rankings →Hoyleton's score of 86.2/100 is above the average of 56/100 among major Illinois cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Illinois rankings →About Hoyleton, IL
Wikipedia →Centralia is a city in Clinton, Jefferson, Marion, and Washington counties in the U.S. state of Illinois with the largest portion in Marion County. The city is the largest in three counties, Clinton, Marion, and Washington, but it is not a county seat for any of them. The population was 12,182 as of the 2020 census, down from 13,032 in 2010.
Learn more about your water
Guides and resources related to Hoyleton's water quality findings.
Explore water quality across Washington
Frequently asked questions
Is Hoyleton, IL tap water safe to drink?
Hoyleton's water quality earned a grade of A- (86.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #334 out of 891 cities tested in Illinois.
What contaminants are in Hoyleton's water?
Lead was measured at 0.0 ppb (90th percentile). 10 violations are on record.
How is Hoyleton'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 Hoyleton?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Hoyleton's water come from?
Hoyleton's water is sourced from Purchased surface water. The city has 2 water systems serving approximately 1,678 residents.
What health violations has Hoyleton's water system had?
Hoyleton 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. 4 violations remain unresolved.
How does Hoyleton's water compare to other cities?
Hoyleton ranks #334 out of 891 cities in Illinois (better than 63% of state cities) and #4862 out of 15744 cities nationally (69th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.