Churchill County Water Quality

Name: Churchill County Water Quality Data (2026)
Creator: PurityMap
License: https://creativecommons.org/licenses/by/4.0/

Churchill County, Nevada: one city report built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.

Find my system Open on the map Private wells in Churchill County

Across the county's systems

Highest result for each contaminant

One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.

LithiumFERNLEY PUBLIC WORKS10 µg/L EPA health reference level (screening, not a legal limit) · US EPA36.2 µg/L

FERNLEY PUBLIC WORKS36.2 µg/LSample date: 2024-04-04 to 2024-10-02

Perfluorooctanesulfonic acid (PFOS)FERNLEY PUBLIC WORKS4.0 ng/L federal MCL (2024) · US EPA5.6 ng/L

FERNLEY PUBLIC WORKS5.6 ng/LSample date: 2024-04-04 to 2024-11-19

29 substances tested, none detected in this systemShow

Tested in this system: FERNLEY PUBLIC WORKS

11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
Lead (90th percentile)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorobutanoic acid (PFBA)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorononanoic acid (PFNA)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)

1 city

Cities ranked by the records

1
FernleyFERNLEY PUBLIC WORKS
PFAS sample above a limit
Open city report →

Showing 1 of 1 cities · scores are system-level, not tap tests

Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.

PFAS in Churchill County1 of 1 city report had a PFAS sample above a 2024 EPA limit

Fernley5.6 ng/L

4.0 ng/L federal MCL · PFOS, ng/LPFAS in Nevada

Lead

0of 1 city above the 15 µg/L action level

Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.

Lead in Nevada

Who supplies the county

Largest water systems

FernleyFERNLEY PUBLIC WORKS · NV0000062
23,064 served

Questions

Frequently asked

How does Churchill County tap water compare across cities?

PurityMap ranks 1 city in Churchill County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Fernley's main water system: FERNLEY PUBLIC WORKS · PWSID NV0000062 · Purity Score 67 (Fair) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.

How many Churchill County cities had a PFAS sample above a 2024 EPA limit?

1 of 1 Churchill County city report had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing, including Fernley (PFOS 5.6 ng/L). That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. PFAS were detected at any level in 1.

Is there lead in Churchill County tap water?

Utilities report lead as a 90th-percentile result from home taps. 0 of 1 Churchill County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

Next step

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