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Tap water quality report

Little Butte Water

EPA monitoring tested this supplier for 56 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

56
contaminants tested
10
detected
101
people served
4
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Surface water
Ownership
Private
Counties served
Chelan

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
9
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2018-09-01
TT Health-based Resolved 1992-01-01 → 1999-12-01
TT Health-based Resolved 1992-01-01 → 1999-12-01
TT Health-based Resolved 1992-01-01 → 1999-12-01
MON Monitoring Resolved 2021-04-01 → 2021-04-30
Other Monitoring Resolved 2014-07-01
MR Monitoring Resolved 1999-01-01 → 2000-10-01
MR Monitoring Archived 1991-12-01 → 1991-12-31
MR Monitoring Archived 1991-10-01 → 1991-10-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Chloroform
39.165 µg/L
No EPA limit set
worst single sample: 40.2 µg/L
10/10 SYR4 2012–2019
Lead
0.00060 mg/L 4%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2024
TTHM
40.045 µg/L 50%
of the EPA limit 80 µg/L
worst single sample: 40.9 µg/L
10/10 SYR4 2012–2019
Bromodichloromethane
1.22 µg/L
No EPA limit set
worst single sample: 1.3 µg/L
9/10 SYR4 2012–2019
Dichloroacetic Acid
9.105 µg/L
No EPA limit set
worst single sample: 11.1 µg/L
8/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
21.32 µg/L 36%
of the EPA limit 60 µg/L
worst single sample: 21.6 µg/L
8/8 SYR4 2012–2019
Trichloroacetic Acid
13.685 µg/L
No EPA limit set
worst single sample: 15.4 µg/L
8/8 SYR4 2012–2019
Barium
6 µg/L 0.3%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Fluoride
60 µg/L 1.5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2012
Monochloroacetic Acid
2.5 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
46 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosBenzeneBeryllium, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDibromoacetic AcidDibromochloromethaneDinosebEthylbenzeneLeadMercuryMonobromoacetic AcidNitrateNitrate-NitriteNitritePentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Grant Ross

Frequently asked questions about Little Butte Water

Is Little Butte Water tap water safe to drink?

EPA monitoring detected 10 contaminants in Little Butte Water's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Little Butte Water's water?

EPA monitoring detected Chloroform, Lead, TTHM, Bromodichloromethane, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Little Butte Water serve?

Little Butte Water reports serving 101 people in Washington, per its EPA record.

Has Little Butte Water had any water quality violations?

The EPA has 9 violations on file for Little Butte Water, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.