Water Quality in SHAWNEE, OK (74801)

EPA violation data for public water systems serving ZIP code 74801.

272

Total Violations

Health-Based

245

Monitoring / Reporting

272

Resolved

What does this mean?

272 of 272 violations have been resolved. 27 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 245 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: 44 Population served: 34,152

Violations Detail (272 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
CARBON, TOTAL	Health-Based	N/A	0.82	Jun 30, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.118	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.081	Jun 30, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.115	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.073	Jun 30, 2025	Resolved	N/A
CARBON, TOTAL	Health-Based	N/A	0.7	Mar 31, 2025	Resolved	N/A
CARBON, TOTAL	Health-Based	N/A	0.7	Mar 31, 2025	Resolved	N/A
CARBON, TOTAL	Health-Based	N/A	0.7	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.096	Mar 31, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.096	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.096	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.063	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.063	Mar 31, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.071	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.071	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.096	Mar 31, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
CARBON, TOTAL	Health-Based	N/A	0.57	Dec 31, 2024	Resolved	N/A
CARBON, TOTAL	Health-Based	N/A	0.57	Dec 31, 2024	Resolved	N/A
CARBON, TOTAL	Health-Based	N/A	0.57	Dec 31, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Atrazine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	Cardiovascular system or reproductive problems
Atrazine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	Cardiovascular system or reproductive problems
Atrazine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	Cardiovascular system or reproductive problems
Methoxychlor	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
CARBON, TOTAL	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
CARBON, TOTAL	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
CARBON, TOTAL	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
CARBON, TOTAL	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
CARBON, TOTAL	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
CARBON, TOTAL	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
CARBON, TOTAL	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
CARBON, TOTAL	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Atrazine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	Cardiovascular system or reproductive problems
Simazine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Atrazine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	Cardiovascular system or reproductive problems
Atrazine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	Cardiovascular system or reproductive problems
Endrin	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
E. COLI	Monitoring	0	N/A	Apr 21, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Apr 21, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Apr 21, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
TTHM	Health-Based	N/A	0.082	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.082	Dec 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(19)

CARBON, TOTAL

Jun 30Resolved

TTHM

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

TTHM

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

CARBON, TOTAL

Mar 31Resolved

CARBON, TOTAL

Mar 31Resolved

CARBON, TOTAL

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

TTHM

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

2024(204)

CARBON, TOTAL

Dec 31Resolved

CARBON, TOTAL

Dec 31Resolved

CARBON, TOTAL

Dec 31Resolved

BHC-GAMMA

Sep 30Resolved

BHC-GAMMA

Sep 30Resolved

Methoxychlor

Sep 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Sep 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Sep 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Sep 30Resolved

Chlordane

Sep 30Resolved

Chlordane

Sep 30Resolved

Di(2-ethylhexyl) adipate

Sep 30Resolved

Di(2-ethylhexyl) adipate

Sep 30Resolved

Di(2-ethylhexyl) adipate

Sep 30Resolved

Atrazine

Sep 30Resolved

Atrazine

Sep 30Resolved

Atrazine

Sep 30Resolved

Methoxychlor

Sep 30Resolved

Methoxychlor

Sep 30Resolved

Chlordane

Sep 30Resolved

LASSO

Sep 30Resolved

LASSO

Sep 30Resolved

LASSO

Sep 30Resolved

Endrin

Sep 30Resolved

Endrin

Sep 30Resolved

Endrin

Sep 30Resolved

BHC-GAMMA

Sep 30Resolved

BHC-GAMMA

Sep 30Resolved

BHC-GAMMA

Sep 30Resolved

Toxaphene

Sep 30Resolved

Toxaphene

Sep 30Resolved

Toxaphene

Sep 30Resolved

Dalapon

Sep 30Resolved

Dalapon

Sep 30Resolved

Dalapon

Sep 30Resolved

Diquat

Sep 30Resolved

Diquat

Sep 30Resolved

Diquat

Sep 30Resolved

Endothall

Sep 30Resolved

Endothall

Sep 30Resolved

Endothall

Sep 30Resolved

Glyphosate

Sep 30Resolved

Glyphosate

Sep 30Resolved

Glyphosate

Sep 30Resolved

OXAMYL

Sep 30Resolved

OXAMYL

Sep 30Resolved

OXAMYL

Sep 30Resolved

Di(2-ethylhexyl) phthalate

Sep 30Resolved

Di(2-ethylhexyl) phthalate

Sep 30Resolved

Di(2-ethylhexyl) phthalate

Sep 30Resolved

Dinoseb

Sep 30Resolved

Dinoseb

Sep 30Resolved

Dinoseb

Sep 30Resolved

Heptachlor epoxide

Sep 30Resolved

Heptachlor epoxide

Sep 30Resolved

Heptachlor epoxide

Sep 30Resolved

2,4-D

Sep 30Resolved

2,4-D

Sep 30Resolved

2,4-D

Sep 30Resolved

Pentachlorophenol

Sep 30Resolved

Pentachlorophenol

Sep 30Resolved

Pentachlorophenol

Sep 30Resolved

ETHYLENE DIBROMIDE

Sep 30Resolved

ETHYLENE DIBROMIDE

Sep 30Resolved

ETHYLENE DIBROMIDE

Sep 30Resolved

Total Polychlorinated Biphenyls (PCB)

Sep 30Resolved

Total Polychlorinated Biphenyls (PCB)

Sep 30Resolved

Total Polychlorinated Biphenyls (PCB)

Sep 30Resolved

Benzo(a)pyrene

Sep 30Resolved

Picloram

Sep 30Resolved

Benzo(a)pyrene

Sep 30Resolved

Heptachlor

Sep 30Resolved

Heptachlor

Sep 30Resolved

Heptachlor

Sep 30Resolved

Carbofuran

Sep 30Resolved

Carbofuran

Sep 30Resolved

Carbofuran

Sep 30Resolved

Hexachlorocyclopentadiene

Sep 30Resolved

Hexachlorocyclopentadiene

Sep 30Resolved

Hexachlorocyclopentadiene

Sep 30Resolved

Simazine

Sep 30Resolved

Simazine

Sep 30Resolved

Benzo(a)pyrene

Sep 30Resolved

HEXACHLOROBENZENE

Sep 30Resolved

HEXACHLOROBENZENE

Sep 30Resolved

HEXACHLOROBENZENE

Sep 30Resolved

2,4,5-TP

Sep 30Resolved

2,4,5-TP

Sep 30Resolved

2,4,5-TP

Sep 30Resolved

Picloram

Sep 30Resolved

Picloram

Sep 30Resolved

Simazine

Sep 30Resolved

CARBON, TOTAL

Aug 31Resolved

CARBON, TOTAL

Aug 31Resolved

CARBON, TOTAL

Aug 31Resolved

CARBON, TOTAL

Aug 31Resolved

CARBON, TOTAL

Aug 31Resolved

CARBON, TOTAL

Aug 31Resolved

CARBON, TOTAL

Aug 31Resolved

CARBON, TOTAL

Aug 31Resolved

HEXACHLOROBENZENE

Jun 30Resolved

Methoxychlor

Jun 30Resolved

HEXACHLOROBENZENE

Jun 30Resolved

BHC-GAMMA

Jun 30Resolved

HEXACHLOROBENZENE

Jun 30Resolved

Heptachlor

Jun 30Resolved

Heptachlor

Jun 30Resolved

Heptachlor

Jun 30Resolved

Methoxychlor

Jun 30Resolved

Heptachlor epoxide

Jun 30Resolved

Heptachlor epoxide

Jun 30Resolved

BHC-GAMMA

Jun 30Resolved

Heptachlor epoxide

Jun 30Resolved

Endrin

Jun 30Resolved

Endrin

Jun 30Resolved

Endrin

Jun 30Resolved

Methoxychlor

Jun 30Resolved

LASSO

Jun 30Resolved

Atrazine

Jun 30Resolved

Simazine

Jun 30Resolved

Simazine

Jun 30Resolved

LASSO

Jun 30Resolved

Di(2-ethylhexyl) phthalate

Jun 30Resolved

Di(2-ethylhexyl) phthalate

Jun 30Resolved

Di(2-ethylhexyl) phthalate

Jun 30Resolved

LASSO

Jun 30Resolved

Simazine

Jun 30Resolved

2,4,5-TP

Jun 30Resolved

2,4,5-TP

Jun 30Resolved

2,4,5-TP

Jun 30Resolved

Atrazine

Jun 30Resolved

Atrazine

Jun 30Resolved

Endrin

Jun 30Resolved

Endrin

Jun 30Resolved

Endrin

Jun 30Resolved

BHC-GAMMA

Jun 30Resolved

BHC-GAMMA

Jun 30Resolved

BHC-GAMMA

Jun 30Resolved

Glyphosate

Jun 30Resolved

Glyphosate

Jun 30Resolved

Glyphosate

Jun 30Resolved

Di(2-ethylhexyl) adipate

Jun 30Resolved

Di(2-ethylhexyl) adipate

Jun 30Resolved

Di(2-ethylhexyl) adipate

Jun 30Resolved

OXAMYL

Jun 30Resolved

OXAMYL

Jun 30Resolved

OXAMYL

Jun 30Resolved

Picloram

Jun 30Resolved

Picloram

Jun 30Resolved

Picloram

Jun 30Resolved

Dinoseb

Jun 30Resolved

Dinoseb

Jun 30Resolved

Dinoseb

Jun 30Resolved

Carbofuran

Jun 30Resolved

Carbofuran

Jun 30Resolved

Carbofuran

Jun 30Resolved

2,4-D

Jun 30Resolved

2,4-D

Jun 30Resolved

2,4-D

Jun 30Resolved

HEXACHLOROBENZENE

Jun 30Resolved

HEXACHLOROBENZENE

Jun 30Resolved

HEXACHLOROBENZENE

Jun 30Resolved

Pentachlorophenol

Jun 30Resolved

Pentachlorophenol

Jun 30Resolved

Pentachlorophenol

Jun 30Resolved

Total Polychlorinated Biphenyls (PCB)

Jun 30Resolved

Total Polychlorinated Biphenyls (PCB)

Jun 30Resolved

Total Polychlorinated Biphenyls (PCB)

Jun 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Jun 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Jun 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Jun 30Resolved

ETHYLENE DIBROMIDE

Jun 30Resolved

ETHYLENE DIBROMIDE

Jun 30Resolved

ETHYLENE DIBROMIDE

Jun 30Resolved

Toxaphene

Jun 30Resolved

Toxaphene

Jun 30Resolved

Toxaphene

Jun 30Resolved

Benzo(a)pyrene

Jun 30Resolved

Methoxychlor

Jun 30Resolved

Benzo(a)pyrene

Jun 30Resolved

Diquat

Jun 30Resolved

Diquat

Jun 30Resolved

Diquat

Jun 30Resolved

Hexachlorocyclopentadiene

Jun 30Resolved

Hexachlorocyclopentadiene

Jun 30Resolved

Benzo(a)pyrene

Jun 30Resolved

Dalapon

Jun 30Resolved

Dalapon

Jun 30Resolved

Dalapon

Jun 30Resolved

Endothall

Jun 30Resolved

Endothall

Jun 30Resolved

Endothall

Jun 30Resolved

Chlordane

Jun 30Resolved

Chlordane

Jun 30Resolved

Heptachlor epoxide

Jun 30Resolved

Heptachlor

Jun 30Resolved

Heptachlor

Jun 30Resolved

Heptachlor

Jun 30Resolved

Heptachlor epoxide

Jun 30Resolved

Heptachlor epoxide

Jun 30Resolved

Chlordane

Jun 30Resolved

Methoxychlor

Jun 30Resolved

Methoxychlor

Jun 30Resolved

Hexachlorocyclopentadiene

Jun 30Resolved

How Does This Compare?

SHAWNEE (74801) has 272 recorded violations, including 27 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

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

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 SHAWNEE, OK (74801)

What does this mean?

Violations Detail (272 total)

Lead & Copper Levels

Violation Timeline

2025(19)

2024(204)

2023(8)

2022(7)

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