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Tap water quality report

Yak Co - Buena Water

EPA monitoring tested this supplier for 71 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
15
detected
952
people served
1
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Yakima

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.

1
health-based violations
5
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1992-12-01 → 1992-12-31
MON Monitoring Resolved 2023-11-01 → 2023-11-30
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Archived 1997-08-01 → 1997-08-31
MR Monitoring Archived 1996-03-01 → 1996-03-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
2950 µg/L 30%
of the EPA limit 10000 µg/L
 18/18 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2023
Nitrate-Nitrite
2950 µg/L 30%
of the EPA limit 10000 µg/L
 9/9 SYR4 2012–2019
Bromoform
8.5 µg/L
No EPA limit set
 7/8 SYR4 2013–2019
TTHM
9.7 µg/L 12%
of the EPA limit 80 µg/L
 7/7 SYR4 2013–2019
Dibromochloromethane
1.46 µg/L
No EPA limit set
 6/8 SYR4 2013–2019
Dibromoacetic Acid
1.8 µg/L
No EPA limit set
 4/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
1.8 µg/L 3%
of the EPA limit 60 µg/L
 4/7 SYR4 2013–2019
Arsenic
2.08 µg/L 21%
of the EPA limit 10 µg/L
 1/1 SYR4 2013
Barium
74.93 µg/L 3.7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Chromium
1.76 µg/L 1.8%
of the EPA limit 100 µg/L
 1/1 SYR4 2013
Fluoride
160 µg/L 4%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
Lead
0.5400 µg/L 3.6%
of the EPA limit 15 µg/L
 1/1 SYR4 2013
Selenium
2.57 µg/L 5.1%
of the EPA limit 50 µg/L
 1/1 SYR4 2013
Thallium, Total
0.9900 µg/L 50%
of the EPA limit 2 µg/L
 1/1 SYR4 2013
56 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitritePentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Jose Campos

Frequently asked questions about Yak Co - Buena Water

Is Yak Co - Buena Water tap water safe to drink?

EPA monitoring detected 15 contaminants in Yak Co - Buena 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 Yak Co - Buena Water's water?

EPA monitoring detected Nitrate, Lead, Nitrate-Nitrite, Bromoform, TTHM, and others. The full list with the level and data source for each is above.

How many people does Yak Co - Buena Water serve?

Yak Co - Buena Water reports serving 952 people in Washington, per its EPA record.

Has Yak Co - Buena Water had any water quality violations?

The EPA has 5 violations on file for Yak Co - Buena Water, of which 1 is 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.