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Tap water quality report

Dixie Water Association

EPA monitoring tested this supplier for 66 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

66
contaminants tested
8
detected
240
people served
15
health-based violations
Water source
Ground water
Ownership
Private
Counties served
Walla Walla

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.

15
health-based violations
61
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2023-07-01 → 2023-07-31
MCL Health-based Archived 2005-07-01 → 2005-07-31
MCL Health-based Archived 1999-04-01 → 1999-04-30
MCL Health-based Archived 1999-04-01 → 1999-04-30
MCL Health-based Archived 1999-04-01 → 1999-04-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1997-06-01 → 1997-06-30
MCL Health-based Archived 1996-04-01 → 1996-04-30
MCL Health-based Archived 1995-09-01 → 1995-09-30

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
Nitrate
4500 µg/L 45%
of the EPA limit 10000 µg/L
worst single sample: 5500 µg/L
46/46 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
11/11 LCR 2024
Carbon Tetrachloride
0.9090 µg/L 18%
of the EPA limit 5 µg/L
worst single sample: 0.9300 µg/L
4/10 SYR4 2012–2019
Barium
11.197 µg/L 0.6%
of the EPA limit 2000 µg/L
worst single sample: 11.3 µg/L
2/2 SYR4 2016–2019
Copper
707.809 µg/L 54%
of the EPA limit 1300 µg/L
worst single sample: 745 µg/L
2/2 SYR4 2016–2019
Fluoride
437.65 µg/L 11%
of the EPA limit 4000 µg/L
worst single sample: 443 µg/L
2/2 SYR4 2016–2019
Nitrate-Nitrite
2907 µg/L 29%
of the EPA limit 10000 µg/L
worst single sample: 2940 µg/L
2/2 SYR4 2016–2019
Lead
2.51 µg/L 17%
of the EPA limit 15 µg/L
1/2 SYR4 2016–2019
58 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitritePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Harley Stafford

Frequently asked questions about Dixie Water Association

Is Dixie Water Association tap water safe to drink?

EPA monitoring detected 8 contaminants in Dixie Water Association'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 Dixie Water Association's water?

EPA monitoring detected Nitrate, Lead, Carbon Tetrachloride, Barium, Copper, and others. The full list with the level and data source for each is above.

How many people does Dixie Water Association serve?

Dixie Water Association reports serving 240 people in Washington, per its EPA record.

Has Dixie Water Association had any water quality violations?

The EPA has 61 violations on file for Dixie Water Association, of which 15 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.