Water Quality in PORTER, OK (74454)

EPA violation data for public water systems serving ZIP code 74454.

168

Total Violations

107

Health-Based

Monitoring / Reporting

155

Resolved

What does this mean?

155 of 168 violations have been resolved. 107 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 61 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: 2,694

Violations Detail (168 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Sep 28, 2025	Active	N/A
TTHM	Monitoring	N/A	N/A	Sep 28, 2025	Active	N/A
TTHM	Health-Based	N/A	0.083	Jun 30, 2025	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2025	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2025	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2025	Active	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.084	Jun 30, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.101	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.073	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.073	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.083	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.083	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Mar 31, 2025	Active	N/A
TTHM	Monitoring	N/A	N/A	Dec 29, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 29, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2024	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2024	Active	N/A
Chlorine	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
TTHM	Monitoring	N/A	N/A	Feb 28, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Feb 28, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Feb 28, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Feb 28, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Feb 28, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Feb 28, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 29, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 29, 2023	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2023	Active	N/A
TTHM	Health-Based	N/A	0.082	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.102	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.102	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.102	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.102	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.102	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Dec 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 29, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 29, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2022	Active	N/A
TTHM	Health-Based	N/A	0.093	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.093	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.093	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.093	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.093	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.095	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.095	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.095	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.095	Sep 30, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Sep 28, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Sep 28, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.087	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.084	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.084	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.084	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.084	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.084	Mar 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.091	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.091	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.091	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.091	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.091	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
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.068	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.077	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.077	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.077	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.077	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.077	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.081	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.081	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.081	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.081	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.081	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.079	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Sep 30, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Sep 30, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.079	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.079	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.079	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.079	Sep 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Sep 28, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Sep 28, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.074	Jun 30, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	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
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.074	Jun 30, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Mar 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Mar 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Mar 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Mar 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.086	Mar 31, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(13)

Total Haloacetic Acids (HAA5)

Sep 28Active

TTHM

Sep 28Active

TTHM

Jun 30Resolved

Lead and Copper Rule

Jun 30Active

Lead and Copper Rule

Jun 30Active

Consumer Confidence Rule

Jun 30Active

Total Haloacetic Acids (HAA5)

Jun 30Resolved

TTHM

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Active

2024(35)

TTHM

Dec 29Resolved

TTHM

Dec 29Resolved