Water Quality in GRAVOIS MILLS, MO (65037)

EPA violation data for public water systems serving ZIP code 65037.

322

Total Violations

25

Health-Based

297

Monitoring / Reporting

310

Resolved

What does this mean?

310 of 322 violations have been resolved. 25 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 297 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: 62 Population served: 3,712

Violations Detail (322 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Public NoticeMonitoringN/AN/ASep 7, 2025ActiveN/A
Public NoticeMonitoringN/AN/AJul 30, 2025ActiveN/A
Revised Total Coliform RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
E. COLIMonitoring0N/AJun 30, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/AJun 30, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/AJun 30, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
Public NoticeMonitoringN/AN/AApr 30, 2025ActiveN/A
Revised Total Coliform RuleHealth-BasedN/AN/AMar 31, 2025ActiveN/A

Lead & Copper Levels

Violation Timeline

2025(17)

Public Notice

75

Sep 7Active

Public Notice

75

Jul 30Active

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

E. COLI

34

Jun 30Resolved

E. COLI

34

Jun 30Resolved

E. COLI

34

Jun 30Resolved

Public Notice

75

Apr 30Active

Revised Total Coliform Rule

2C

Mar 31Active

Revised Total Coliform Rule

2C

Mar 31Active

Public Notice

75

Mar 12Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

2024(77)

E. COLI

34

Dec 31Resolved

E. COLI

34

Dec 31Resolved

E. COLI

34

Dec 31Resolved

E. COLI

34

Dec 31Resolved

E. COLI

34

Dec 31Resolved

Public Notice

75

Dec 27Resolved

Public Notice

75

Dec 27Resolved

Public Notice

75

Dec 4Active

Revised Total Coliform Rule

2A

Dec 4Active

Revised Total Coliform Rule

2A

Dec 4Active

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Public Notice

75

Nov 28Resolved

Public Notice

75

Nov 28Resolved

E. COLI

34

Oct 31Resolved

E. COLI

34

Oct 31Resolved

E. COLI

34

Oct 31Resolved

Public Notice

75

Oct 8Resolved

Public Notice

75

Oct 8Resolved

Public Notice

75

Oct 6Resolved

Public Notice

75

Oct 6Resolved

Revised Total Coliform Rule

2A

Sep 1Resolved

Revised Total Coliform Rule

2A

Sep 1Resolved

Revised Total Coliform Rule

2A

Sep 1Resolved

Revised Total Coliform Rule

2A

Sep 1Resolved

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

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

2A

Aug 17Resolved

Revised Total Coliform Rule

2A

Aug 17Resolved

Revised Total Coliform Rule

2A

Aug 17Resolved

Revised Total Coliform Rule

2A

Aug 17Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

E. COLI

34

Jul 31Active

E. COLI

34

Jul 31Active

E. COLI

34

Jul 31Active

Public Notice

75

Jul 24Resolved

Public Notice

75

Jul 24Resolved

Public Notice

75

Jul 24Resolved

E. COLI

34

Jun 30Resolved

E. COLI

34

Jun 30Resolved

E. COLI

34

Jun 30Resolved

E. COLI

34

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

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Revised Total Coliform Rule

4B

May 31Resolved

Revised Total Coliform Rule

4B

May 31Resolved

Revised Total Coliform Rule

4B

May 31Resolved

Groundwater Rule

20

May 29Resolved

Groundwater Rule

20

May 22Resolved

Groundwater Rule

20

May 22Resolved

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

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Public Notice

75

Mar 1Active

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

How Does This Compare?

GRAVOIS MILLS (65037) has 322 recorded violations, including 25 health-based. 12 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

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

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.

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