Water Quality in LAPWAI, ID (83540)

EPA violation data for public water systems serving ZIP code 83540.

148

Total Violations

Health-Based

148

Monitoring / Reporting

148

Resolved

What does this mean?

148 of 148 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 148 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: 11 Population served: 1,771

Violations Detail (148 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Liver problems; increased risk of cancer
o-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
2,3,7,8-TCDD	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Liver problems; increased risk of cancer
OXAMYL	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Atrazine	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Cardiovascular system or reproductive problems
Benzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Liver problems; increased risk of cancer
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
E. COLI	Monitoring	0	N/A	Feb 17, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Feb 17, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Feb 17, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
2,3,7,8-TCDD	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Liver problems; increased risk of cancer
Chlordane	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
BHC-GAMMA	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Pentachlorophenol	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Liver problems; increased risk of cancer
Atrazine	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Cardiovascular system or reproductive problems
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Liver problems; increased risk of cancer
Heptachlor	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Endrin	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Increased risk of cancer
Glyphosate	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
2,3,7,8-TCDD	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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Lead and Copper Rule	Monitoring	N/A	N/A	Jul 10, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jul 10, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 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
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
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

Lead & Copper Levels

Violation Timeline

2025(57)

1,2-DIBROMO-3-CHLOROPROPANE

Mar 31Resolved

Gross Alpha, Excl. Radon and U

Mar 31Resolved

Styrene

Mar 31Resolved

Toluene

Mar 31Resolved

2,4,5-TP

Mar 31Resolved

Chlordane

Mar 31Resolved

Di(2-ethylhexyl) adipate

Mar 31Resolved

Trichloroethylene

Mar 31Resolved

o-Dichlorobenzene

Mar 31Resolved

Combined Radium (-226 and -228)

Mar 31Resolved

Toxaphene

Mar 31Resolved

Glyphosate

Mar 31Resolved

HEXACHLOROBENZENE

Mar 31Resolved

DICHLOROMETHANE

Mar 31Resolved

CHLOROBENZENE

Mar 31Resolved

Ethylbenzene

Mar 31Resolved

Dalapon

Mar 31Resolved

2,4-D

Mar 31Resolved

ETHYLENE DIBROMIDE

Mar 31Resolved

2,3,7,8-TCDD

Mar 31Resolved

Di(2-ethylhexyl) phthalate

Mar 31Resolved

Vinyl chloride

Mar 31Resolved

Carbon tetrachloride

Mar 31Resolved

OXAMYL

Mar 31Resolved

1,2-Dichloropropane

Mar 31Resolved

Total Polychlorinated Biphenyls (PCB)

Mar 31Resolved

Pentachlorophenol

Mar 31Resolved

Benzo(a)pyrene

Mar 31Resolved

Heptachlor epoxide

Mar 31Resolved

Heptachlor

Mar 31Resolved

LASSO

Mar 31Resolved

Carbofuran

Mar 31Resolved

Hexachlorocyclopentadiene

Mar 31Resolved

Dinoseb

Mar 31Resolved

Picloram

Mar 31Resolved

Simazine

Mar 31Resolved

Diquat

Mar 31Resolved

Methoxychlor

Mar 31Resolved

BHC-GAMMA

Mar 31Resolved

Endrin

Mar 31Resolved

Combined Uranium

Mar 31Resolved

1,2,4-Trichlorobenzene

Mar 31Resolved

Atrazine

Mar 31Resolved

Benzene

Mar 31Resolved

Tetrachloroethylene

Mar 31Resolved

1,1,2-Trichloroethane

Mar 31Resolved

1,1,1-Trichloroethane

Mar 31Resolved

1,2-Dichloroethane

Mar 31Resolved

trans-1,2-Dichloroethylene

Mar 31Resolved

1,1-Dichloroethylene

Mar 31Resolved

p-Dichlorobenzene

Mar 31Resolved

Xylenes, Total

Mar 31Resolved

cis-1,2-Dichloroethylene

Mar 31Resolved

Endothall

Mar 31Resolved

E. COLI

Feb 17Resolved

E. COLI

Feb 17Resolved

E. COLI

Feb 17Resolved

2024(58)

Gross Alpha, Excl. Radon and U

Dec 31Resolved

1,1-Dichloroethylene

Dec 31Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Dec 31Resolved

Combined Radium (-226 and -228)

Dec 31Resolved

Ethylbenzene

Dec 31Resolved

Toluene

Dec 31Resolved

CHLOROBENZENE

Dec 31Resolved

1,2-Dichloropropane

Dec 31Resolved

1,1,1-Trichloroethane

Dec 31Resolved

1,2-Dichloroethane

Dec 31Resolved

trans-1,2-Dichloroethylene

Dec 31Resolved

p-Dichlorobenzene

Dec 31Resolved

o-Dichlorobenzene

Dec 31Resolved

DICHLOROMETHANE

Dec 31Resolved

Xylenes, Total

Dec 31Resolved

cis-1,2-Dichloroethylene

Dec 31Resolved

Benzo(a)pyrene

Dec 31Resolved

HEXACHLOROBENZENE

Dec 31Resolved

2,4,5-TP

Dec 31Resolved

2,4-D

Dec 31Resolved

Heptachlor epoxide

Dec 31Resolved

2,3,7,8-TCDD

Dec 31Resolved

Carbofuran

Dec 31Resolved

Hexachlorocyclopentadiene

Dec 31Resolved

Dinoseb

Dec 31Resolved

Picloram

Dec 31Resolved

Simazine

Dec 31Resolved

OXAMYL

Dec 31Resolved

Di(2-ethylhexyl) adipate

Dec 31Resolved

Endothall

Dec 31Resolved

Dalapon

Dec 31Resolved

Toxaphene

Dec 31Resolved

Methoxychlor

Dec 31Resolved

LASSO

Dec 31Resolved

Carbon tetrachloride

Dec 31Resolved

Chlordane

Dec 31Resolved

BHC-GAMMA

Dec 31Resolved

Total Polychlorinated Biphenyls (PCB)

Dec 31Resolved

ETHYLENE DIBROMIDE

Dec 31Resolved

Benzene

Dec 31Resolved

Pentachlorophenol

Dec 31Resolved

1,2,4-Trichlorobenzene

Dec 31Resolved

Tetrachloroethylene

Dec 31Resolved

Atrazine

Dec 31Resolved

Trichloroethylene

Dec 31Resolved

Heptachlor

Dec 31Resolved

1,1,2-Trichloroethane

Dec 31Resolved

Di(2-ethylhexyl) phthalate

Dec 31Resolved

Diquat

Dec 31Resolved

Combined Uranium

Dec 31Resolved

Endrin

Dec 31Resolved

Vinyl chloride

Dec 31Resolved

Glyphosate

Dec 31Resolved

Styrene

Dec 31Resolved

ETHYLENE DIBROMIDE

Sep 30Resolved

2,3,7,8-TCDD

Sep 30Resolved

1,2-DIBROMO-3-CHLOROPROPANE

Sep 30Resolved

Revised Total Coliform Rule

Feb 29Resolved

How Does This Compare?

LAPWAI (83540) has 148 recorded violations, none of which are 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 →

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 LAPWAI, ID (83540)

What does this mean?

Violations Detail (148 total)

Lead & Copper Levels

Violation Timeline

2025(57)

2024(58)

2023(8)

2022(22)

2021(3)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code