WaterVerge

Is Paw Paw, IL Tap Water Safe to Drink?

Graded A, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

870 residents served 1 water system PWSID: IL1030400
Overall Score
90.6 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#130 of 891 in Illinois Top 14% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
90.6/100
waterverge.com
A 90.6/100

Paw Paw, IL — Water Quality Report

Paw Paw's drinking water received a grade of A (90.6 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 870 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 17 violations on record, including 1 health-based violation. 5 remain unresolved.

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

What to know about Paw Paw's water

Paw Paw ranks #130 out of 891 cities in Illinois for water quality, placing it above average in the state.

Paw Paw 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, Paw Paw may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
90.6 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.6/45
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
5/5
A
Water source: Groundwater.
Water Safety

Is Paw Paw, IL water safe to drink?

Concerns Identified

Paw Paw's drinking water has significant quality concerns based on EPA testing data. With a grade of A (90.6/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 870 residents using groundwater (wells).

5
Active Violations
0.0 ppb
Lead (90th %ile)
5 events
Disaster History

Recent water quality updates for Paw Paw

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Paw Paw's water quality assessment. Grade: A (90.6/100).

Disaster
SEVERE STORMS AND FLOODING

Federal disaster declaration (FEMA DR-4461). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Chlorine.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence 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

Contaminants: Coliform (TCR).

Key contaminant findings

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

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

Well within EPA limits.

Violation history

Paw Paw's water system has 17 total violations on record, including 1 health-based violation. 5 remain unresolved.

MROtherMCL
Most recent violations:
Apr 2009 Chlorine Resolved
Jul 2008 Consumer Confidence Rule Open
Dec 1996 Coliform (TCR) Resolved
Oct 1996 Lead and Copper Rule Open
Oct 1995 Lead and Copper Rule Open

Flood & environmental risk

Lee County has experienced 5 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.

SEVERE STORMS AND FLOODING
Flood FEMA DR-4461
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3230
SEVERE STORMS & FLOODING
Flood FEMA DR-735

Where does Paw Paw's water come from?

Paw Paw's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 870 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Paw Paw residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Paw Paw's water.

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.

Monitor alerts during storms

Paw Paw'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.

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

17
Total violations
1
Health-based
5
Active / unresolved
Apr 2009
Most recent violation
Compliance Record

Violations & advisories

17 Total
5 Active
1 Health-based
12 Resolved
Violations by category
Total Coliform Rule
10
Lead and Copper Rule
3
Stage 1 Disinfectants and Disinfection Byproducts Rule
1
Consumer Confidence Rule
1
Radionuclides and Revised Rad Rule
1
Jul 2008 Active
Consumer Confidence Rule
Other Violation 0
Oct 1996 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 1995 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 1994 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Apr 2009 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2009
Dec 1996 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 1996
Sep 1995 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 1995
Jun 1995 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 1995
Apr 1994 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 1994
Aug 1993 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 1993
Feb 1993 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 1993
Aug 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 1992
May 1992 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved May 1992
Aug 1991 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Aug 1991
May 1991 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved May 1991
Jun 1977 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 1981
Environmental Risk

Flood & disaster history

5
Declared disasters
Sep 2019
Most recent
Flood
Most common type

Lee County has experienced 5 federally declared disasters since 1973. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2019
SEVERE STORMS AND FLOODING
Flood FEMA #4461
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3230
Mar 1985
SEVERE STORMS & FLOODING
Flood FEMA #735
Jun 1974
SEVERE STORMS & FLOODING
Flood FEMA #438
Apr 1973
SEVERE STORMS & FLOODING
Flood FEMA #373

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 0.0 ppb from 1993 (0.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
870
Water Systems
1
Water Source

Where Paw Paw's water comes from

Groundwater

Paw Paw'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 870 people through 1 water system.

Infrastructure

Water systems serving Paw Paw

System Name PWSID Population Source
PAW PAW IL1030400 870 GW
Regional Comparison

How Paw Paw compares

Full Illinois rankings →

Paw Paw's score of 90.6/100 is above the average of 56/100 among major Illinois cities. It outscores 9 of 10 nearby cities.

Paw Paw (this city)
90.6
Chicago
35.2
Aurora
45.5
Joliet
38.5
Naperville
81.2
Champaign
91.9
Illinois avg
56
City Profile

About Paw Paw, IL

Economic Profile
$58,571
Median Income
$142,500
Median Home Value
$850/mo
Median Rent
5.2%
Unemployment
Community
35.5
Median Age
632
People / sq mi
12.1%
College Educated
73.1%
Homeownership
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Frequently asked questions

Is Paw Paw, IL tap water safe to drink?

Paw Paw's water quality earned a grade of A (90.6/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #130 out of 891 cities tested in Illinois.

What contaminants are in Paw Paw's water?

Lead was measured at 0.0 ppb (90th percentile). 17 violations are on record.

How is Paw Paw'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 Paw Paw?

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

Where does Paw Paw's water come from?

Paw Paw's water is sourced from Groundwater. The city has 1 water system serving approximately 870 residents.

What health violations has Paw Paw's water system had?

Paw Paw has 1 health-based violation on record. The most recent violation was recorded in April 2009. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.

Is Paw Paw's groundwater at risk of contamination?

Paw Paw 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 17 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 Paw Paw's water compare to other cities?

Paw Paw ranks #130 out of 891 cities in Illinois (better than 85% of state cities) and #2141 out of 15744 cities nationally (86th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Paw Paw's small water system affect quality?

Paw Paw's system serves approximately 870 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 17 violations on record.