Is Erie, IL Tap Water Safe to Drink?
Graded C+, with 12 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
68.2/100
waterverge.com Erie, IL — Water Quality Report
Erie's drinking water received a grade of C+ (68.2 out of 100), indicating fair water quality. The city's 1 water system serves approximately 1,600 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 15 violations on record, including 4 health-based violations. 12 remain unresolved.
What to know about Erie's water
Erie ranks #756 out of 891 cities in Illinois for water quality, placing it among the lowest-rated in the state.
Erie 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, Erie may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 8 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Erie, IL water safe to drink?
Erie's drinking water has significant quality concerns based on EPA testing data. With a grade of C+ (68.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,600 residents using groundwater (wells).
Recent water quality updates for Erie
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Erie's water quality assessment. Grade: C+ (68.2/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Public Notice.
Contaminants: Consumer Confidence Rule.
Federal disaster declaration (FEMA DR-4461). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4116). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Erie's water supply.
Well within EPA limits.
Violation history
Erie's water system has 15 total violations on record, including 4 health-based violations. 12 remain unresolved. 8 violations were issued in the last 5 years.
Flood & environmental risk
Whiteside County has experienced 8 federally declared disasters since 1969. 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.
Where does Erie's water come from?
Erie's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,600 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).
What Erie residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Erie'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.
Erie'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 Erie
Industrial polluters nearby
Reported releases to surface water by facilities near Erie, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
ROCK RIVER FABRICATION LYNDON, IL61261 | — | — | 9.6 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Whiteside County has experienced 8 federally declared disasters since 1969. 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 Erie compares by contaminant
Explore where Erie ranks among all Illinois cities for specific contaminants.
Water source & infrastructure
Where Erie's water comes from
Erie'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 1,600 people through 1 water system.
Water bodies near Erie
Erie is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Erie
| System Name | PWSID | Population | Source |
|---|---|---|---|
| ERIE | IL1950200 | 1,600 | GW |
How Erie compares
Full Illinois rankings →Erie's score of 68.2/100 is above the average of 56/100 among major Illinois cities. It outscores 7 of 10 nearby cities.
Nearby cities
View Illinois rankings →About Erie, IL
Learn more about your water
Guides and resources related to Erie's water quality findings.
Explore water quality across Whiteside
Frequently asked questions
Is Erie, IL tap water safe to drink?
Erie's water quality earned a grade of C+ (68.2/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #756 out of 891 cities tested in Illinois.
What contaminants are in Erie's water?
Lead was measured at 0.0 ppb (90th percentile). 15 violations are on record.
How is Erie'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 Erie?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Erie's water come from?
Erie's water is sourced from Groundwater. The city has 1 water system serving approximately 1,600 residents.
What health violations has Erie's water system had?
Erie has 4 health-based violations 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. 12 violations remain unresolved.
Is Erie's groundwater at risk of contamination?
Erie 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 15 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 Erie's water compare to other cities?
Erie ranks #756 out of 891 cities in Illinois (better than 15% of state cities) and #11117 out of 15744 cities nationally (29th percentile). The grade of C+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Erie's small water system affect quality?
Erie's system serves approximately 1,600 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 15 violations on record.