Jeffrey City, WY Tap Water Quality 2026

Water quality report for Jeffrey City, WY — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Jeffrey City's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Jeffrey City Water & Sewer District PWSID: WY5600106 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

Jeffrey City earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: not detected

PFAS never sampled at this system

179 violations since 2015, 3 health-based

No violations currently open

Jeffrey City's lead level vs. all Wyoming community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: Not detected — 0% of the federal action level

✓ Lower lead than % of Wyoming utilities

Population Served

~25 connections

Water Source

Groundwater

Drawn from wells — SDWIS source code GW

Active Violations

179 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

0% of EPA action level

Not detected

Action level: 15 ppb

Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

Contaminant	Type	Measured	Limit	Period	Status
Consumer Confidence Rule	OTHER	—	—	2025	Unaddressed
Nitrate-Nitrite	MONITORING AND REPORTING	—	—	2025	Archived
Chlorine	MONITORING AND REPORTING	—	4.0 mg/L	2024	Resolved
Chlorine	MONITORING AND REPORTING	—	4.0 mg/L	2024	Resolved
Chlorine	MONITORING AND REPORTING	—	4.0 mg/L	2023	Resolved
Revised Total Coliform Rule	MONITORING FAILURE	—	—	2023	Resolved
Groundwater Rule	TREATMENT TECHNIQUE	—	—	2022	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2022	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2022	Resolved
Combined Radium (-226 and -228)	MONITORING AND REPORTING	—	5 pCi/L	2022	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2022	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2022	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2021	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2021	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2021	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2021	Resolved
Combined Radium (-226 and -228)	MONITORING AND REPORTING	—	5 pCi/L	2021	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2021	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2021	Resolved
1,2,4-Trichlorobenzene	MONITORING AND REPORTING	—	0.07 mg/L	2021	Resolved
cis-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.07 mg/L	2021	Resolved
Xylenes, Total	MONITORING AND REPORTING	—	10 mg/L	2021	Resolved
DICHLOROMETHANE	MONITORING AND REPORTING	—	0.005 mg/L	2021	Resolved
o-Dichlorobenzene	MONITORING AND REPORTING	—	0.6 mg/L	2021	Resolved
p-Dichlorobenzene	MONITORING AND REPORTING	—	0.075 mg/L	2021	Resolved
Vinyl chloride	MONITORING AND REPORTING	—	0.002 mg/L	2021	Resolved
1,1-Dichloroethylene	MONITORING AND REPORTING	—	0.007 mg/L	2021	Resolved
trans-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.1 mg/L	2021	Resolved
1,2-Dichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2021	Resolved
1,1,1-Trichloroethane	MONITORING AND REPORTING	—	0.2 mg/L	2021	Resolved
Carbon tetrachloride	MONITORING AND REPORTING	—	0.005 mg/L	2021	Resolved
1,2-Dichloropropane	MONITORING AND REPORTING	—	0.005 mg/L	2021	Resolved
Trichloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2021	Resolved
1,1,2-Trichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2021	Resolved
Tetrachloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2021	Resolved
CHLOROBENZENE	MONITORING AND REPORTING	—	0.1 mg/L	2021	Resolved
Benzene	MONITORING AND REPORTING	—	0.005 mg/L	2021	Resolved
Toluene	MONITORING AND REPORTING	—	1 mg/L	2021	Resolved
Ethylbenzene	MONITORING AND REPORTING	—	0.7 mg/L	2021	Resolved
Styrene	MONITORING AND REPORTING	—	0.1 mg/L	2021	Resolved
Consumer Confidence Rule	OTHER	—	—	2020	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2020	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2020	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2020	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2020	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2020	Resolved
Combined Radium (-226 and -228)	MONITORING AND REPORTING	—	5 pCi/L	2020	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2020	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2020	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2020–2022	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2020–2022	Resolved
Consumer Confidence Rule	OTHER	—	—	2019	Resolved
1,2,4-Trichlorobenzene	MONITORING AND REPORTING	—	0.07 mg/L	2019	Resolved
cis-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.07 mg/L	2019	Resolved
Xylenes, Total	MONITORING AND REPORTING	—	10 mg/L	2019	Resolved
DICHLOROMETHANE	MONITORING AND REPORTING	—	0.005 mg/L	2019	Resolved
o-Dichlorobenzene	MONITORING AND REPORTING	—	0.6 mg/L	2019	Resolved
p-Dichlorobenzene	MONITORING AND REPORTING	—	0.075 mg/L	2019	Resolved
Vinyl chloride	MONITORING AND REPORTING	—	0.002 mg/L	2019	Resolved
1,1-Dichloroethylene	MONITORING AND REPORTING	—	0.007 mg/L	2019	Resolved
trans-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.1 mg/L	2019	Resolved
1,2-Dichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2019	Resolved
1,1,1-Trichloroethane	MONITORING AND REPORTING	—	0.2 mg/L	2019	Resolved
Carbon tetrachloride	MONITORING AND REPORTING	—	0.005 mg/L	2019	Resolved
1,2-Dichloropropane	MONITORING AND REPORTING	—	0.005 mg/L	2019	Resolved
Trichloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2019	Resolved
1,1,2-Trichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2019	Resolved
Tetrachloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2019	Resolved
CHLOROBENZENE	MONITORING AND REPORTING	—	0.1 mg/L	2019	Resolved
Benzene	MONITORING AND REPORTING	—	0.005 mg/L	2019	Resolved
Toluene	MONITORING AND REPORTING	—	1 mg/L	2019	Resolved
Ethylbenzene	MONITORING AND REPORTING	—	0.7 mg/L	2019	Resolved
Styrene	MONITORING AND REPORTING	—	0.1 mg/L	2019	Resolved
Endrin	MONITORING AND REPORTING	—	0.002 mg/L	2019	Resolved
BHC-GAMMA	MONITORING AND REPORTING	—	0.0002 mg/L	2019	Resolved
Methoxychlor	MONITORING AND REPORTING	—	0.04 mg/L	2019	Resolved
Toxaphene	MONITORING AND REPORTING	—	0.003 mg/L	2019	Resolved
Dalapon	MONITORING AND REPORTING	—	0.2 mg/L	2019	Resolved
Diquat	MONITORING AND REPORTING	—	0.02 mg/L	2019	Resolved
Endothall	MONITORING AND REPORTING	—	0.1 mg/L	2019	Resolved
Glyphosate	MONITORING AND REPORTING	—	0.7 mg/L	2019	Resolved
Di(2-ethylhexyl) adipate	MONITORING AND REPORTING	—	0.4 mg/L	2019	Resolved
OXAMYL	MONITORING AND REPORTING	—	0.2 mg/L	2019	Resolved
Simazine	MONITORING AND REPORTING	—	0.004 mg/L	2019	Resolved
Di(2-ethylhexyl) phthalate	MONITORING AND REPORTING	—	0.006 mg/L	2019	Resolved
Picloram	MONITORING AND REPORTING	—	0.5 mg/L	2019	Resolved
Dinoseb	MONITORING AND REPORTING	—	0.007 mg/L	2019	Resolved
Hexachlorocyclopentadiene	MONITORING AND REPORTING	—	0.05 mg/L	2019	Resolved
Carbofuran	MONITORING AND REPORTING	—	0.04 mg/L	2019	Resolved
Atrazine	MONITORING AND REPORTING	—	0.003 mg/L	2019	Resolved
LASSO	MONITORING AND REPORTING	—	—	2019	Resolved
Heptachlor	MONITORING AND REPORTING	—	0.0004 mg/L	2019	Resolved
Heptachlor epoxide	MONITORING AND REPORTING	—	0.0002 mg/L	2019	Resolved
2,4-D	MONITORING AND REPORTING	—	0.07 mg/L	2019	Resolved
2,4,5-TP	MONITORING AND REPORTING	—	0.05 mg/L	2019	Resolved
HEXACHLOROBENZENE	MONITORING AND REPORTING	—	0.001 mg/L	2019	Resolved
Benzo(a)pyrene	MONITORING AND REPORTING	—	0.0002 mg/L	2019	Resolved
Pentachlorophenol	MONITORING AND REPORTING	—	0.001 mg/L	2019	Resolved
1,2-DIBROMO-3-CHLOROPROPANE	MONITORING AND REPORTING	—	0.0002 mg/L	2019	Resolved
ETHYLENE DIBROMIDE	MONITORING AND REPORTING	—	0.00005 mg/L	2019	Resolved
Chlordane	MONITORING AND REPORTING	—	0.002 mg/L	2019	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2019	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2019	Resolved
Combined Radium (-226 and -228)	MONITORING AND REPORTING	—	5 pCi/L	2019	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2019	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2019	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2019	Resolved
Revised Total Coliform Rule	MONITORING FAILURE	—	—	2018	Resolved
Revised Total Coliform Rule	MONITORING FAILURE	—	—	2018	Resolved
1,2,4-Trichlorobenzene	MONITORING AND REPORTING	—	0.07 mg/L	2018	Resolved
cis-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.07 mg/L	2018	Resolved
Xylenes, Total	MONITORING AND REPORTING	—	10 mg/L	2018	Resolved
DICHLOROMETHANE	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
o-Dichlorobenzene	MONITORING AND REPORTING	—	0.6 mg/L	2018	Resolved
p-Dichlorobenzene	MONITORING AND REPORTING	—	0.075 mg/L	2018	Resolved
Vinyl chloride	MONITORING AND REPORTING	—	0.002 mg/L	2018	Resolved
1,1-Dichloroethylene	MONITORING AND REPORTING	—	0.007 mg/L	2018	Resolved
trans-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
1,2-Dichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
1,1,1-Trichloroethane	MONITORING AND REPORTING	—	0.2 mg/L	2018	Resolved
Carbon tetrachloride	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
1,2-Dichloropropane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Trichloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
1,1,2-Trichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Tetrachloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
CHLOROBENZENE	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
Benzene	MONITORING AND REPORTING	—	0.005 mg/L	2018	Resolved
Toluene	MONITORING AND REPORTING	—	1 mg/L	2018	Resolved
Ethylbenzene	MONITORING AND REPORTING	—	0.7 mg/L	2018	Resolved
Styrene	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
Endrin	MONITORING AND REPORTING	—	0.002 mg/L	2018	Resolved
BHC-GAMMA	MONITORING AND REPORTING	—	0.0002 mg/L	2018	Resolved
Methoxychlor	MONITORING AND REPORTING	—	0.04 mg/L	2018	Resolved
Toxaphene	MONITORING AND REPORTING	—	0.003 mg/L	2018	Resolved
Dalapon	MONITORING AND REPORTING	—	0.2 mg/L	2018	Resolved
Diquat	MONITORING AND REPORTING	—	0.02 mg/L	2018	Resolved
Endothall	MONITORING AND REPORTING	—	0.1 mg/L	2018	Resolved
Glyphosate	MONITORING AND REPORTING	—	0.7 mg/L	2018	Resolved
Di(2-ethylhexyl) adipate	MONITORING AND REPORTING	—	0.4 mg/L	2018	Resolved
OXAMYL	MONITORING AND REPORTING	—	0.2 mg/L	2018	Resolved
Simazine	MONITORING AND REPORTING	—	0.004 mg/L	2018	Resolved
Di(2-ethylhexyl) phthalate	MONITORING AND REPORTING	—	0.006 mg/L	2018	Resolved
Picloram	MONITORING AND REPORTING	—	0.5 mg/L	2018	Resolved
Dinoseb	MONITORING AND REPORTING	—	0.007 mg/L	2018	Resolved
Hexachlorocyclopentadiene	MONITORING AND REPORTING	—	0.05 mg/L	2018	Resolved
Carbofuran	MONITORING AND REPORTING	—	0.04 mg/L	2018	Resolved
Atrazine	MONITORING AND REPORTING	—	0.003 mg/L	2018	Resolved
LASSO	MONITORING AND REPORTING	—	—	2018	Resolved
Heptachlor	MONITORING AND REPORTING	—	0.0004 mg/L	2018	Resolved
Heptachlor epoxide	MONITORING AND REPORTING	—	0.0002 mg/L	2018	Resolved
2,4-D	MONITORING AND REPORTING	—	0.07 mg/L	2018	Resolved
2,4,5-TP	MONITORING AND REPORTING	—	0.05 mg/L	2018	Resolved
HEXACHLOROBENZENE	MONITORING AND REPORTING	—	0.001 mg/L	2018	Resolved
Benzo(a)pyrene	MONITORING AND REPORTING	—	0.0002 mg/L	2018	Resolved
Pentachlorophenol	MONITORING AND REPORTING	—	0.001 mg/L	2018	Resolved
1,2-DIBROMO-3-CHLOROPROPANE	MONITORING AND REPORTING	—	0.0002 mg/L	2018	Resolved
ETHYLENE DIBROMIDE	MONITORING AND REPORTING	—	0.00005 mg/L	2018	Resolved
Chlordane	MONITORING AND REPORTING	—	0.002 mg/L	2018	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2018	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2018	Resolved
Combined Radium (-226 and -228)	MONITORING AND REPORTING	—	5 pCi/L	2018	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2018	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2018	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2018	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2018	Resolved
Combined Radium (-226 and -228)	MONITORING AND REPORTING	—	5 pCi/L	2018	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2018	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2018	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2018	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2018	Resolved
Consumer Confidence Rule	OTHER	—	—	2017	Resolved
E. COLI	MONITORING AND REPORTING	—	0	2017	Resolved
Consumer Confidence Rule	OTHER	—	—	2016	Resolved
Coliform (TCR)	MONITORING AND REPORTING	—	5% of samples	2015	Resolved
Coliform (TCR)	MONITORING AND REPORTING	—	5% of samples	2015	Resolved
Groundwater Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
Groundwater Rule	TREATMENT TECHNIQUE	—	—	2015	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2015–2017	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2015–2017	Resolved

Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

179 violations are on record since 2015, of which 3 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Jeffrey City Water & Sewer District

PWSID WY5600106

Water source Groundwater — Drawn from wells — SDWIS source code GW

Population served 29

Service connections 25

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Jeffrey City tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open.

Does Jeffrey City water have PFAS? ▼

This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.

Who supplies water to Jeffrey City? ▼

Jeffrey City Water & Sewer District (PWSID WY5600106). Groundwater. Drawn from wells — SDWIS source code GW

When was this system last inspected? ▼

It was last inspected on 2022-09-15. No significant deficiencies were recorded.

What Should Jeffrey City Residents Do?

Read your annual water report

Your supplier publishes a Consumer Confidence Report each July covering the prior year.

Check for a lead service line

Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.

Flush before drinking

If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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