Water Quality in MISSOURI CITY, TX (77459)

EPA violation data for public water systems serving ZIP code 77459.

522

Total Violations

15

Health-Based

507

Monitoring / Reporting

380

Resolved

What does this mean?

380 of 522 violations have been resolved. 15 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 507 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: 17 Population served: 23,768

Violations Detail (522 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Public NoticeMonitoringN/AN/AAug 7, 2025ActiveN/A
Public NoticeMonitoringN/AN/AJul 23, 2025ActiveN/A
Lead and Copper RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
Lead and Copper RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
Public NoticeMonitoringN/AN/AApr 30, 2025ActiveN/A
Public NoticeMonitoringN/AN/AApr 27, 2025ActiveN/A
Public NoticeMonitoringN/AN/AApr 27, 2025ActiveN/A
Public NoticeMonitoringN/AN/AApr 27, 2025ActiveN/A
Public NoticeMonitoringN/AN/AApr 27, 2025ActiveN/A
Public NoticeMonitoringN/AN/AApr 27, 2025ActiveN/A

Lead & Copper Levels

Violation Timeline

2025(22)

Public Notice

75

Aug 7Active

Public Notice

75

Jul 23Active

Lead and Copper Rule

52

Jun 30Active

Lead and Copper Rule

52

Jun 30Active

Public Notice

75

Apr 30Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Public Notice

75

Apr 27Active

Chlorine

27

Mar 31Resolved

Public Notice

75

Mar 9Active

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Public Notice

75

Jan 22Active

Public Notice

75

Jan 22Active

2024(68)

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Lead and Copper Rule

52

Dec 31Active

Lead and Copper Rule

52

Dec 31Active

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 30Active

Public Notice

75

Nov 30Active

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

Oct 31Resolved

Revised Total Coliform Rule

3A

Oct 31Resolved

Revised Total Coliform Rule

3A

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

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Public Notice

75

Sep 27Active

Public Notice

75

Sep 27Active

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Public Notice

75

Aug 17Resolved

Public Notice

75

Aug 17Resolved

E. COLI

34

Aug 6Resolved

E. COLI

34

Aug 6Resolved

E. COLI

34

Aug 6Resolved

E. COLI

34

Aug 6Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Public Notice

75

Jul 20Active

Public Notice

75

Jul 20Active

E. COLI

34

Jul 5Resolved

E. COLI

34

Jul 5Resolved

E. COLI

34

Jul 5Resolved

E. COLI

34

Jul 5Resolved

Lead and Copper Rule

52

Jun 30Active

Lead and Copper Rule

52

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Public Notice

75

Jun 15Active

Public Notice

75

Jun 15Active

Public Notice

75

Mar 21Active

Public Notice

75

Mar 21Active

Public Notice

75

Mar 21Active

Public Notice

75

Mar 21Active

Public Notice

75

Mar 21Active

Public Notice

75

Mar 21Active

Public Notice

75

Mar 21Active

Public Notice

75

Mar 21Active

Public Notice

75

Feb 17Active

Public Notice

75

Feb 17Active

Public Notice

75

Feb 17Active

Public Notice

75

Feb 17Active

Public Notice

75

Feb 16Resolved

Public Notice

75

Feb 16Resolved

Public Notice

75

Feb 16Resolved

Public Notice

75

Feb 15Active

Public Notice

75

Feb 15Active

Public Notice

75

Jan 4Active

Public Notice

75

Jan 4Active

How Does This Compare?

MISSOURI CITY (77459) has 522 recorded violations, including 15 health-based. 142 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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