Water Quality in CHICAGO, IL (60661)

EPA violation data for public water systems serving ZIP code 60661.

129

Total Violations

Health-Based

Monitoring / Reporting

129

Resolved

What does this mean?

129 of 129 violations have been resolved. 79 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 50 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 4 Population served: 1,254

Violations Detail (129 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Public Notice	Monitoring	N/A	N/A	Apr 9, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 9, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 9, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 9, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.099	Mar 31, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.099	Mar 31, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.099	Mar 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.169	Mar 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.169	Mar 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.169	Mar 31, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 11, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 11, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 11, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Mar 11, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Mar 11, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Mar 11, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
TTHM	Health-Based	N/A	0.209	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.109	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.109	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.109	Dec 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.209	Dec 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.209	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.065	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.181	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.181	Sep 30, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.065	Sep 30, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.065	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.181	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.166	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.166	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.188	Mar 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.082	Mar 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.082	Mar 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.082	Mar 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.082	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.188	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.188	Mar 31, 2023	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.089	Dec 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.089	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.198	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.198	Dec 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.089	Dec 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.089	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.198	Dec 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 21, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 21, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 21, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 21, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.189	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.189	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.189	Sep 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.087	Sep 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.087	Sep 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.087	Sep 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.087	Sep 30, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 20, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.078	Jun 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.078	Jun 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.078	Jun 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.078	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.17	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.17	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.17	Jun 30, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Mar 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.16	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.16	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.16	Mar 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Mar 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Mar 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Mar 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.129	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.129	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.066	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.066	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.066	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.066	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.129	Dec 31, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 28, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 28, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.131	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.131	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.131	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.074	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.074	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.074	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.074	Jun 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.149	Jun 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.149	Jun 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.149	Jun 30, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 17, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 17, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 17, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 17, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.116	Mar 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.116	Mar 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.116	Mar 31, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 1, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 1, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 1, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 1, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2024(20)

Public Notice

Apr 9Resolved

Public Notice

Apr 9Resolved

Public Notice

Apr 9Resolved

Public Notice

Apr 9Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 11Resolved

TTHM

Mar 11Resolved

TTHM

Mar 11Resolved

Total Haloacetic Acids (HAA5)

Mar 11Resolved

Total Haloacetic Acids (HAA5)

Mar 11Resolved

Total Haloacetic Acids (HAA5)

Mar 11Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

2023(24)

Nitrate

Dec 31Resolved

Nitrate

Dec 31Resolved

Nitrate

Dec 31Resolved

TTHM

Dec 31Resolved

Total Haloacetic Acids (HAA5)

Dec 31Resolved

Total Haloacetic Acids (HAA5)

Dec 31Resolved

Total Haloacetic Acids (HAA5)

Dec 31Resolved

TTHM

Dec 31Resolved

TTHM

Dec 31Resolved

Total Haloacetic Acids (HAA5)

Sep 30Resolved

TTHM

Sep 30Resolved

TTHM

Sep 30Resolved

Total Haloacetic Acids (HAA5)

Sep 30Resolved

Total Haloacetic Acids (HAA5)

Sep 30Resolved

TTHM

Sep 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

How Does This Compare?

CHICAGO (60661) has 129 recorded violations, including 79 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in CHICAGO, IL (60661)

What does this mean?

Violations Detail (129 total)

Lead & Copper Levels

Violation Timeline

2024(20)

2023(24)

2022(51)

2021(34)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Activated Carbon Filter

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code