Water Quality in OTTAWA, IL (61350)

EPA violation data for public water systems serving ZIP code 61350.

1,079

Total Violations

89

Health-Based

990

Monitoring / Reporting

1,036

Resolved

What does this mean?

1,036 of 1,079 violations have been resolved. 89 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 990 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: 138 Population served: 30,700

Violations Detail (1079 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Public NoticeMonitoringN/AN/ASep 25, 2025ActiveN/A
ChlorineMonitoringN/AN/AAug 31, 2025ResolvedEye and nose irritation; stomach discomfort
Revised Total Coliform RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
Public NoticeMonitoringN/AN/AAug 29, 2025ActiveN/A
Public NoticeMonitoringN/AN/AAug 29, 2025ActiveN/A
Public NoticeMonitoringN/AN/AAug 21, 2025ActiveN/A
Public NoticeMonitoringN/AN/AAug 19, 2025ActiveN/A
ChlorineMonitoringN/AN/AJul 31, 2025ResolvedEye and nose irritation; stomach discomfort
Revised Total Coliform RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Public NoticeMonitoringN/AN/AJul 30, 2025ActiveN/A

Lead & Copper Levels

Violation Timeline

2025(63)

Public Notice

75

Sep 25Active

Chlorine

27

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Public Notice

75

Aug 29Active

Public Notice

75

Aug 29Active

Public Notice

75

Aug 21Active

Public Notice

75

Aug 19Active

Chlorine

27

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Public Notice

75

Jul 30Active

Public Notice

75

Jul 26Resolved

Public Notice

75

Jul 26Resolved

LEAD AND COPPER RULE REVISIONS

4H

Jul 1Active

LEAD AND COPPER RULE REVISIONS

4H

Jul 1Active

LEAD AND COPPER RULE REVISIONS

4H

Jul 1Active

LEAD AND COPPER RULE REVISIONS

4H

Jul 1Active

Consumer Confidence Rule

71

Jun 30Active

Chlorine

27

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Public Notice

75

Jun 6Active

Public Notice

75

Jun 6Active

Chlorine

27

May 31Resolved

Chlorine

27

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Lead and Copper Rule

66

May 26Active

Lead and Copper Rule

66

May 26Active

Chlorine

27

Apr 30Resolved

Chlorine

27

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Public Notice

75

Apr 18Active

Lead and Copper Rule

57

Apr 1Active

Chlorine

27

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Revised Total Coliform Rule

3B

Mar 31Resolved

Revised Total Coliform Rule

3B

Mar 31Resolved

Public Notice

75

Mar 25Active

Chlorine

27

Feb 28Resolved

Chlorine

27

Feb 28Resolved

Chlorine

27

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Public Notice

75

Feb 20Active

Public Notice

75

Feb 20Active

Chlorine

27

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Chlorine

27

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Chlorine

27

Jan 31Resolved

Public Notice

75

Jan 25Active

Public Notice

75

Jan 21Active

2024(219)

Chlorine

27

Dec 31Resolved

Chlorine

27

Dec 31Resolved

Chlorine

27

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Chlorine

27

Dec 31Resolved

Chlorine

27

Dec 31Resolved

Chlorine

27

Dec 31Resolved

Chlorine

27

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Combined Radium (-226 and -228)

02

Dec 31Resolved

Combined Radium (-226 and -228)

02

Dec 31Resolved

Combined Radium (-226 and -228)

02

Dec 31Resolved

Combined Radium (-226 and -228)

02

Dec 31Resolved

Combined Radium (-226 and -228)

02

Dec 31Resolved

Public Notice

75

Dec 20Resolved

Public Notice

75

Dec 20Resolved

Public Notice

75

Dec 17Active

Public Notice

75

Dec 6Active

Public Notice

75

Dec 6Active

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Chlorine

27

Nov 30Resolved

Chlorine

27

Nov 30Resolved

Chlorine

27

Nov 30Resolved

Public Notice

75

Nov 5Active

Public Notice

75

Nov 5Active

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Chlorine

27

Oct 31Resolved

Chlorine

27

Oct 31Resolved

Chlorine

27

Oct 31Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

Public Notice

75

Oct 10Active

Public Notice

75

Oct 10Resolved

Public Notice

75

Oct 10Resolved

Chlorine

27

Sep 30Resolved

Chlorine

27

Sep 30Resolved

Chlorine

27

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

p-Dichlorobenzene

03

Sep 30Resolved

1,2-Dichloroethane

03

Sep 30Resolved

Xylenes, Total

03

Sep 30Resolved

Xylenes, Total

03

Sep 30Resolved

CHLOROBENZENE

03

Sep 30Resolved

CHLOROBENZENE

03

Sep 30Resolved

CHLOROBENZENE

03

Sep 30Resolved

CHLOROBENZENE

03

Sep 30Resolved

Styrene

03

Sep 30Resolved

Toluene

03

Sep 30Resolved

Toluene

03

Sep 30Resolved

1,1-Dichloroethylene

03

Sep 30Resolved

1,1-Dichloroethylene

03

Sep 30Resolved

1,1-Dichloroethylene

03

Sep 30Resolved

1,1-Dichloroethylene

03

Sep 30Resolved

Vinyl chloride

03

Sep 30Resolved

Vinyl chloride

03

Sep 30Resolved

Vinyl chloride

03

Sep 30Resolved

Vinyl chloride

03

Sep 30Resolved

Carbon tetrachloride

03

Sep 30Resolved

Carbon tetrachloride

03

Sep 30Resolved

Carbon tetrachloride

03

Sep 30Resolved

Carbon tetrachloride

03

Sep 30Resolved

Benzene

03

Sep 30Resolved

Xylenes, Total

03

Sep 30Resolved

Benzene

03

Sep 30Resolved

Benzene

03

Sep 30Resolved

Toluene

03

Sep 30Resolved

Trichloroethylene

03

Sep 30Resolved

Trichloroethylene

03

Sep 30Resolved

Trichloroethylene

03

Sep 30Resolved

Trichloroethylene

03

Sep 30Resolved

1,2,4-Trichlorobenzene

03

Sep 30Resolved

1,2,4-Trichlorobenzene

03

Sep 30Resolved

1,2,4-Trichlorobenzene

03

Sep 30Resolved

1,2,4-Trichlorobenzene

03

Sep 30Resolved

cis-1,2-Dichloroethylene

03

Sep 30Resolved

cis-1,2-Dichloroethylene

03

Sep 30Resolved

cis-1,2-Dichloroethylene

03

Sep 30Resolved

cis-1,2-Dichloroethylene

03

Sep 30Resolved

o-Dichlorobenzene

03

Sep 30Resolved

o-Dichlorobenzene

03

Sep 30Resolved

o-Dichlorobenzene

03

Sep 30Resolved

o-Dichlorobenzene

03

Sep 30Resolved

p-Dichlorobenzene

03

Sep 30Resolved

p-Dichlorobenzene

03

Sep 30Resolved

Xylenes, Total

03

Sep 30Resolved

p-Dichlorobenzene

03

Sep 30Resolved

trans-1,2-Dichloroethylene

03

Sep 30Resolved

trans-1,2-Dichloroethylene

03

Sep 30Resolved

trans-1,2-Dichloroethylene

03

Sep 30Resolved

trans-1,2-Dichloroethylene

03

Sep 30Resolved

1,1,1-Trichloroethane

03

Sep 30Resolved

1,1,1-Trichloroethane

03

Sep 30Resolved

1,1,1-Trichloroethane

03

Sep 30Resolved

1,1,1-Trichloroethane

03

Sep 30Resolved

1,2-Dichloropropane

03

Sep 30Resolved

1,2-Dichloropropane

03

Sep 30Resolved

1,2-Dichloropropane

03

Sep 30Resolved

1,2-Dichloropropane

03

Sep 30Resolved

1,1,2-Trichloroethane

03

Sep 30Resolved

1,1,2-Trichloroethane

03

Sep 30Resolved

1,1,2-Trichloroethane

03

Sep 30Resolved

1,1,2-Trichloroethane

03

Sep 30Resolved

Ethylbenzene

03

Sep 30Resolved

Ethylbenzene

03

Sep 30Resolved

Ethylbenzene

03

Sep 30Resolved

Ethylbenzene

03

Sep 30Resolved

Styrene

03

Sep 30Resolved

Styrene

03

Sep 30Resolved

Styrene

03

Sep 30Resolved

Toluene

03

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

DICHLOROMETHANE

03

Sep 30Resolved

DICHLOROMETHANE

03

Sep 30Resolved

DICHLOROMETHANE

03

Sep 30Resolved

DICHLOROMETHANE

03

Sep 30Resolved

Tetrachloroethylene

03

Sep 30Resolved

Tetrachloroethylene

03

Sep 30Resolved

Tetrachloroethylene

03

Sep 30Resolved

Tetrachloroethylene

03

Sep 30Resolved

1,2-Dichloroethane

03

Sep 30Resolved

1,2-Dichloroethane

03

Sep 30Resolved

1,2-Dichloroethane

03

Sep 30Resolved

Benzene

03

Sep 30Resolved

Combined Radium (-226 and -228)

02

Sep 30Resolved

Combined Radium (-226 and -228)

02

Sep 30Resolved

Combined Radium (-226 and -228)

02

Sep 30Resolved

Combined Radium (-226 and -228)

02

Sep 30Resolved

Combined Radium (-226 and -228)

02

Sep 30Resolved

Revised Total Coliform Rule

3B

Sep 30Resolved

Revised Total Coliform Rule

3B

Sep 30Resolved

Revised Total Coliform Rule

3B

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Lead and Copper Rule

66

Sep 10Resolved

Lead and Copper Rule

66

Sep 10Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Chlorine

27

Jun 30Resolved

Chlorine

27

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Chlorine

27

Jun 30Resolved

Combined Radium (-226 and -228)

02

Jun 30Resolved

Combined Radium (-226 and -228)

02

Jun 30Resolved

Combined Radium (-226 and -228)

02

Jun 30Resolved

Combined Radium (-226 and -228)

02

Jun 30Resolved

Combined Radium (-226 and -228)

02

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

2D

Apr 15Resolved

Revised Total Coliform Rule

2D

Apr 15Resolved

Revised Total Coliform Rule

2D

Apr 15Resolved

Public Notice

75

Apr 10Active

Public Notice

75

Apr 10Active

Public Notice

75

Apr 10Resolved

Public Notice

75

Apr 10Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Combined Radium (-226 and -228)

02

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Lead and Copper Rule

66

Mar 24Resolved

Lead and Copper Rule

66

Mar 24Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Public Notice

75

Feb 23Resolved

Public Notice

75

Feb 23Resolved

Public Notice

75

Feb 2Resolved

Public Notice

75

Feb 2Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Public Notice

75

Jan 26Resolved

Public Notice

75

Jan 26Resolved

Public Notice

75

Jan 26Active

Public Notice

75

Jan 23Resolved

Public Notice

75

Jan 23Resolved

Public Notice

75

Jan 23Resolved

Public Notice

75

Jan 23Resolved

How Does This Compare?

OTTAWA (61350) has 1,079 recorded violations, including 89 health-based. 43 remain unresolved. 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

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

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

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

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

Nearby ZIP Codes

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