WaterVerge

Is Divernon, IL Tap Water Safe to Drink?

Graded A-, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

1K residents served 1 water system PWSID: IL1670450
Overall Score
89.7 / 100
Violations
2 active
Last Updated
May 2026
Source
Purchased surface water
#165 of 891 in Illinois Top 17% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
89.7/100
waterverge.com
A- 89.7/100

Divernon, IL — Water Quality Report

Divernon's drinking water received a grade of A- (89.7 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,172 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 7 violations on record, including 5 health-based violations. 2 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Divernon's water

Divernon ranks #165 out of 891 cities in Illinois for water quality, placing it above average 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, Divernon may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
89.7 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.7/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Divernon, IL water safe to drink?

Use Caution

Divernon's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (89.7/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,172 residents using surface water (rivers, lakes, or reservoirs).

2
Active Violations
0.0 ppb
Lead (90th %ile)
2 events
Disaster History

Recent water quality updates for Divernon

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Divernon's water quality assessment. Grade: A- (89.7/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Interim Enhanced Surface Water Treatment Rule.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3230). Hurricane event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Coliform (TCR).

Disaster
SEVERE STORMS & FLOODING

Federal disaster declaration (FEMA DR-438). Flood event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Divernon's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Divernon's water system has 7 total violations on record, including 5 health-based violations. 2 remain unresolved.

OtherTTMCL
Most recent violations:
Jul 2016 Consumer Confidence Rule Open
Jul 2010 Interim Enhanced Surface Water Treatment Rule Resolved
Aug 1999 Coliform (TCR) Resolved
Apr 1994 Atrazine Resolved
Jan 1994 Atrazine Resolved

Flood & environmental risk

Sangamon County has experienced 2 federally declared disasters since 1974. 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 Lick Creek, Sugar Creek.

HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3230
SEVERE STORMS & FLOODING
Flood FEMA DR-438

Where does Divernon's water come from?

Divernon's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 1,172 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Lick Creek (river), Sugar Creek (river).

What Divernon residents can do

Request your utility's CCR

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.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

7
Total violations
5
Health-based
2
Active / unresolved
Jul 2016
Most recent violation
Compliance Record

Violations & advisories

7 Total
2 Active
5 Health-based
5 Resolved
Violations by category
Synthetic Organic Chemicals
3
Consumer Confidence Rule
1
Interim and Long Term 1 Enhanced Surface Water Treatment Rule
1
Total Coliform Rule
1
Jul 2016 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jul 2010 Resolved
Interim Enhanced Surface Water Treatment Rule
Treatment Technique
Health-Based Health Resolved Jul 2010
Aug 1999 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Aug 1999
Apr 1994 Resolved
Atrazine
Max Contaminant Level
Health-Based Health Resolved Jun 1994
Jan 1994 Resolved
Atrazine
Max Contaminant Level
Health-Based Health Resolved Mar 1994
Oct 1993 Resolved
Atrazine
Max Contaminant Level
Health-Based Health Resolved Dec 1993
Environmental Risk

Flood & disaster history

2
Declared disasters
Sep 2005
Most recent
Hurricane
Most common type

Sangamon County has experienced 2 federally declared disasters since 1974. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3230
Jun 1974
SEVERE STORMS & FLOODING
Flood FEMA #438

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 6.0 ppb from 1993 (6.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
1,172
Water Systems
1
Water Source

Where Divernon's water comes from

Purchased Surface Water

Divernon'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 local government ownership and serves approximately 1,172 people through 1 water system.

Local Hydrology

Water bodies near Divernon

Divernon is located near 2 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Lick Creek
river
Sugar Creek
river
Infrastructure

Water systems serving Divernon

System Name PWSID Population Source
DIVERNON IL1670450 1,172 SWP
Regional Comparison

How Divernon compares

Full Illinois rankings →

Divernon's score of 89.7/100 is above the average of 56/100 among major Illinois cities. It outscores 9 of 10 nearby cities.

Divernon (this city)
89.7
Chicago
35.2
Aurora
45.5
Joliet
38.5
Naperville
81.2
Champaign
91.9
Illinois avg
56
City Profile

About Divernon, IL

Wikipedia →

Divernon is a village in Sangamon County, Illinois, United States. The population was 1,139 at the 2020 census. It is part of the Springfield, Illinois Metropolitan Statistical Area.

Economic Profile
$69,643
Median Income
$112,898
Median Home Value
$868/mo
Median Rent
4.6%
Unemployment
Community
36.8
Median Age
602
People / sq mi
19%
College Educated
80%
Homeownership
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Frequently asked questions

Is Divernon, IL tap water safe to drink?

Divernon's water quality earned a grade of A- (89.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #165 out of 891 cities tested in Illinois.

What contaminants are in Divernon's water?

Lead was measured at 0.0 ppb (90th percentile). 7 violations are on record.

How is Divernon'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 Divernon?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Divernon's water come from?

Divernon's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,172 residents.

What health violations has Divernon's water system had?

Divernon has 5 health-based violations on record. The most recent violation was recorded in July 2016. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.

How does Divernon's water compare to other cities?

Divernon ranks #165 out of 891 cities in Illinois (better than 81% of state cities) and #2669 out of 15744 cities nationally (83th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Divernon's small water system affect quality?

Divernon's system serves approximately 1,172 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 7 violations on record.