Casper Mountain, WY Tap Water Quality 2026

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

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

Main Utility: Broken Wrench Llc PWSID: WY5600074 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead is 2.00 ppb, 13% of the action level and no violations are open. PFAS has never been sampled at this system.

Casper Mountain earns a B for water quality

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

Lead: 2.00 ppb — 13% of the federal action level

PFAS never sampled at this system

144 violations since 2015, 7 health-based

No violations currently open

Casper Mountain's lead level vs. all Wyoming community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 2.00 ppb — 13% of the federal action level

✓ Lower lead than 70% of Wyoming utilities

Population Served

104

~16 connections

Water Source

Groundwater

Drawn from wells — SDWIS source code GW

Active Violations

144 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

13% of EPA action level

2.00 ppb

Action level: 15 ppb

The 90th-percentile lead result is 2.00 ppb, 13% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

Contaminant	Type	Measured	Limit	Period	Status
Lead and Copper Rule	TREATMENT TECHNIQUE	—	TT	2024	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2024	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2024	Resolved
Lead and Copper Rule	TREATMENT TECHNIQUE	—	TT	2024	Resolved
Lead and Copper Rule	TREATMENT TECHNIQUE	—	TT	2023	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2023	Resolved
Lead and Copper Rule	TREATMENT TECHNIQUE	—	TT	2023	Resolved
Lead and Copper Rule	TREATMENT TECHNIQUE	—	TT	2023	Resolved
Lead and Copper Rule	TREATMENT TECHNIQUE	—	TT	2023	Resolved
Arsenic	MONITORING AND REPORTING	—	0.010 mg/L	2023–2025	Archived
Barium	MONITORING AND REPORTING	—	2 mg/L	2023–2025	Archived
Cadmium	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
Chromium	MONITORING AND REPORTING	—	0.1 mg/L	2023–2025	Archived
CYANIDE	MONITORING AND REPORTING	—	0.2 mg/L	2023–2025	Archived
Fluoride	MONITORING AND REPORTING	—	4.0 mg/L	2023–2025	Archived
Mercury	MONITORING AND REPORTING	—	0.002 mg/L	2023–2025	Archived
Nickel	MONITORING AND REPORTING	—	—	2023–2025	Archived
Antimony, Total	MONITORING AND REPORTING	—	0.006 mg/L	2023–2025	Archived
Beryllium, Total	MONITORING AND REPORTING	—	0.004 mg/L	2023–2025	Archived
Thallium, Total	MONITORING AND REPORTING	—	0.002 mg/L	2023–2025	Archived
Selenium	MONITORING AND REPORTING	—	0.05 mg/L	2023–2025	Archived
1,2,4-Trichlorobenzene	MONITORING AND REPORTING	—	0.07 mg/L	2023–2025	Archived
cis-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.07 mg/L	2023–2025	Archived
Xylenes, Total	MONITORING AND REPORTING	—	10 mg/L	2023–2025	Archived
DICHLOROMETHANE	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
o-Dichlorobenzene	MONITORING AND REPORTING	—	0.6 mg/L	2023–2025	Archived
p-Dichlorobenzene	MONITORING AND REPORTING	—	0.075 mg/L	2023–2025	Archived
Vinyl chloride	MONITORING AND REPORTING	—	0.002 mg/L	2023–2025	Archived
1,1-Dichloroethylene	MONITORING AND REPORTING	—	0.007 mg/L	2023–2025	Archived
trans-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.1 mg/L	2023–2025	Archived
1,2-Dichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
1,1,1-Trichloroethane	MONITORING AND REPORTING	—	0.2 mg/L	2023–2025	Archived
Carbon tetrachloride	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
1,2-Dichloropropane	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
Trichloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
1,1,2-Trichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
Tetrachloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
CHLOROBENZENE	MONITORING AND REPORTING	—	0.1 mg/L	2023–2025	Archived
Benzene	MONITORING AND REPORTING	—	0.005 mg/L	2023–2025	Archived
Toluene	MONITORING AND REPORTING	—	1 mg/L	2023–2025	Archived
Ethylbenzene	MONITORING AND REPORTING	—	0.7 mg/L	2023–2025	Archived
Styrene	MONITORING AND REPORTING	—	0.1 mg/L	2023–2025	Archived
Endrin	MONITORING AND REPORTING	—	0.002 mg/L	2023–2025	Archived
BHC-GAMMA	MONITORING AND REPORTING	—	0.0002 mg/L	2023–2025	Archived
Methoxychlor	MONITORING AND REPORTING	—	0.04 mg/L	2023–2025	Archived
Toxaphene	MONITORING AND REPORTING	—	0.003 mg/L	2023–2025	Archived
Dalapon	MONITORING AND REPORTING	—	0.2 mg/L	2023–2025	Archived
Diquat	MONITORING AND REPORTING	—	0.02 mg/L	2023–2025	Archived
Endothall	MONITORING AND REPORTING	—	0.1 mg/L	2023–2025	Archived
Glyphosate	MONITORING AND REPORTING	—	0.7 mg/L	2023–2025	Archived
Di(2-ethylhexyl) adipate	MONITORING AND REPORTING	—	0.4 mg/L	2023–2025	Archived
OXAMYL	MONITORING AND REPORTING	—	0.2 mg/L	2023–2025	Archived
Simazine	MONITORING AND REPORTING	—	0.004 mg/L	2023–2025	Archived
Di(2-ethylhexyl) phthalate	MONITORING AND REPORTING	—	0.006 mg/L	2023–2025	Archived
Picloram	MONITORING AND REPORTING	—	0.5 mg/L	2023–2025	Archived
Dinoseb	MONITORING AND REPORTING	—	0.007 mg/L	2023–2025	Archived
Hexachlorocyclopentadiene	MONITORING AND REPORTING	—	0.05 mg/L	2023–2025	Archived
Carbofuran	MONITORING AND REPORTING	—	0.04 mg/L	2023–2025	Archived
Atrazine	MONITORING AND REPORTING	—	0.003 mg/L	2023–2025	Archived
LASSO	MONITORING AND REPORTING	—	—	2023–2025	Archived
Heptachlor	MONITORING AND REPORTING	—	0.0004 mg/L	2023–2025	Archived
Heptachlor epoxide	MONITORING AND REPORTING	—	0.0002 mg/L	2023–2025	Archived
2,4-D	MONITORING AND REPORTING	—	0.07 mg/L	2023–2025	Archived
2,4,5-TP	MONITORING AND REPORTING	—	0.05 mg/L	2023–2025	Archived
HEXACHLOROBENZENE	MONITORING AND REPORTING	—	0.001 mg/L	2023–2025	Archived
Benzo(a)pyrene	MONITORING AND REPORTING	—	0.0002 mg/L	2023–2025	Archived
Pentachlorophenol	MONITORING AND REPORTING	—	0.001 mg/L	2023–2025	Archived
Total Polychlorinated Biphenyls (PCB)	MONITORING AND REPORTING	—	0.0005 mg/L	2023–2025	Archived
1,2-DIBROMO-3-CHLOROPROPANE	MONITORING AND REPORTING	—	0.0002 mg/L	2023–2025	Archived
ETHYLENE DIBROMIDE	MONITORING AND REPORTING	—	0.00005 mg/L	2023–2025	Archived
Chlordane	MONITORING AND REPORTING	—	0.002 mg/L	2023–2025	Archived
Lead and Copper Rule	TREATMENT TECHNIQUE	—	TT	2022	Resolved
Nitrate-Nitrite	MONITORING AND REPORTING	—	—	2022	Resolved
Lead and Copper Rule	MONITORING AND REPORTING	—	TT	2021	Resolved
Consumer Confidence Rule	OTHER	—	—	2021	Resolved
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2021–2023	Resolved
Total Haloacetic Acids (HAA5)	MONITORING AND REPORTING	—	0.060 mg/L	2021–2023	Resolved
Nitrate-Nitrite	MONITORING AND REPORTING	—	—	2019	Resolved
Consumer Confidence Rule	OTHER	—	—	2018	Resolved
1,2,4-Trichlorobenzene	MONITORING AND REPORTING	—	0.07 mg/L	2017–2019	Resolved
cis-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.07 mg/L	2017–2019	Resolved
Xylenes, Total	MONITORING AND REPORTING	—	10 mg/L	2017–2019	Resolved
DICHLOROMETHANE	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
o-Dichlorobenzene	MONITORING AND REPORTING	—	0.6 mg/L	2017–2019	Resolved
p-Dichlorobenzene	MONITORING AND REPORTING	—	0.075 mg/L	2017–2019	Resolved
Vinyl chloride	MONITORING AND REPORTING	—	0.002 mg/L	2017–2019	Resolved
1,1-Dichloroethylene	MONITORING AND REPORTING	—	0.007 mg/L	2017–2019	Resolved
trans-1,2-Dichloroethylene	MONITORING AND REPORTING	—	0.1 mg/L	2017–2019	Resolved
1,2-Dichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
1,1,1-Trichloroethane	MONITORING AND REPORTING	—	0.2 mg/L	2017–2019	Resolved
Carbon tetrachloride	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
1,2-Dichloropropane	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
Trichloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
1,1,2-Trichloroethane	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
Tetrachloroethylene	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
CHLOROBENZENE	MONITORING AND REPORTING	—	0.1 mg/L	2017–2019	Resolved
Benzene	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
Toluene	MONITORING AND REPORTING	—	1 mg/L	2017–2019	Resolved
Ethylbenzene	MONITORING AND REPORTING	—	0.7 mg/L	2017–2019	Resolved
Styrene	MONITORING AND REPORTING	—	0.1 mg/L	2017–2019	Resolved
Endrin	MONITORING AND REPORTING	—	0.002 mg/L	2017–2019	Resolved
BHC-GAMMA	MONITORING AND REPORTING	—	0.0002 mg/L	2017–2019	Resolved
Methoxychlor	MONITORING AND REPORTING	—	0.04 mg/L	2017–2019	Resolved
Toxaphene	MONITORING AND REPORTING	—	0.003 mg/L	2017–2019	Resolved
Dalapon	MONITORING AND REPORTING	—	0.2 mg/L	2017–2019	Resolved
Diquat	MONITORING AND REPORTING	—	0.02 mg/L	2017–2019	Resolved
Endothall	MONITORING AND REPORTING	—	0.1 mg/L	2017–2019	Resolved
Glyphosate	MONITORING AND REPORTING	—	0.7 mg/L	2017–2019	Resolved
Di(2-ethylhexyl) adipate	MONITORING AND REPORTING	—	0.4 mg/L	2017–2019	Resolved
OXAMYL	MONITORING AND REPORTING	—	0.2 mg/L	2017–2019	Resolved
Simazine	MONITORING AND REPORTING	—	0.004 mg/L	2017–2019	Resolved
Di(2-ethylhexyl) phthalate	MONITORING AND REPORTING	—	0.006 mg/L	2017–2019	Resolved
Picloram	MONITORING AND REPORTING	—	0.5 mg/L	2017–2019	Resolved
Dinoseb	MONITORING AND REPORTING	—	0.007 mg/L	2017–2019	Resolved
Hexachlorocyclopentadiene	MONITORING AND REPORTING	—	0.05 mg/L	2017–2019	Resolved
Carbofuran	MONITORING AND REPORTING	—	0.04 mg/L	2017–2019	Resolved
Atrazine	MONITORING AND REPORTING	—	0.003 mg/L	2017–2019	Resolved
LASSO	MONITORING AND REPORTING	—	—	2017–2019	Resolved
Heptachlor	MONITORING AND REPORTING	—	0.0004 mg/L	2017–2019	Resolved
Heptachlor epoxide	MONITORING AND REPORTING	—	0.0002 mg/L	2017–2019	Resolved
2,4-D	MONITORING AND REPORTING	—	0.07 mg/L	2017–2019	Resolved
2,4,5-TP	MONITORING AND REPORTING	—	0.05 mg/L	2017–2019	Resolved
HEXACHLOROBENZENE	MONITORING AND REPORTING	—	0.001 mg/L	2017–2019	Resolved
Benzo(a)pyrene	MONITORING AND REPORTING	—	0.0002 mg/L	2017–2019	Resolved
Pentachlorophenol	MONITORING AND REPORTING	—	0.001 mg/L	2017–2019	Resolved
1,2-DIBROMO-3-CHLOROPROPANE	MONITORING AND REPORTING	—	0.0002 mg/L	2017–2019	Resolved
ETHYLENE DIBROMIDE	MONITORING AND REPORTING	—	0.00005 mg/L	2017–2019	Resolved
Chlordane	MONITORING AND REPORTING	—	0.002 mg/L	2017–2019	Resolved
CYANIDE	MONITORING AND REPORTING	—	0.2 mg/L	2017–2019	Resolved
Antimony, Total	MONITORING AND REPORTING	—	0.006 mg/L	2017–2019	Resolved
Chromium	MONITORING AND REPORTING	—	0.1 mg/L	2017–2019	Resolved
Cadmium	MONITORING AND REPORTING	—	0.005 mg/L	2017–2019	Resolved
Fluoride	MONITORING AND REPORTING	—	4.0 mg/L	2017–2019	Resolved
Beryllium, Total	MONITORING AND REPORTING	—	0.004 mg/L	2017–2019	Resolved
Selenium	MONITORING AND REPORTING	—	0.05 mg/L	2017–2019	Resolved
Nickel	MONITORING AND REPORTING	—	—	2017–2019	Resolved
Mercury	MONITORING AND REPORTING	—	0.002 mg/L	2017–2019	Resolved
Barium	MONITORING AND REPORTING	—	2 mg/L	2017–2019	Resolved
Arsenic	MONITORING AND REPORTING	—	0.010 mg/L	2017–2019	Resolved
Gross Alpha, Excl. Radon and U	MONITORING AND REPORTING	—	15 pCi/L	2015–2020	Resolved
Combined Uranium	MONITORING AND REPORTING	—	30 ug/L	2015–2020	Resolved
Combined Radium (-226 and -228)	MONITORING AND REPORTING	—	5 pCi/L	2015–2020	Resolved
Radium-226	MONITORING AND REPORTING	—	—	2015–2020	Resolved
Radium-228	MONITORING AND REPORTING	—	—	2015–2020	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

144 violations are on record since 2015, of which 7 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Broken Wrench Llc

PWSID WY5600074

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

Population served 104

Service connections 16

Systems serving this area 1

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Casper Mountain tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 2.00 ppb, 13% of the action level.

Does Casper Mountain 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 Casper Mountain? ▼

Broken Wrench Llc (PWSID WY5600074). Groundwater. Drawn from wells — SDWIS source code GW

When was this system last inspected? ▼

It was last inspected on 2024-09-24. No significant deficiencies were recorded.

What Should Casper Mountain 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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