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Tap water quality report

Westbourne Acres

EPA monitoring tested this supplier for 69 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
10
detected
94
people served
20
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
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.

20
health-based violations
316
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Resolved 2012-01-01 → 2012-12-31
MCL Health-based Resolved 2010-04-01 → 2010-06-30
MCL Health-based Resolved 2004-07-01 → 2004-09-30
MCL Health-based Resolved 2004-04-01 → 2004-06-30
MCL Health-based Resolved 2004-01-01 → 2004-03-31
MCL Health-based Resolved 2003-01-01 → 2003-12-31
MCL Health-based Archived 1999-03-01 → 1999-03-31

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 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
11150 µg/L 112%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 13400 µg/L
48/74 SYR4 2012–2019
Lead
0.0067 mg/L 45%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Barium
47.75 µg/L 2.4%
of the EPA limit 2000 µg/L
worst single sample: 53 µg/L
4/4 SYR4 2018–2019
Fluoride
3372.5 µg/L 84%
of the EPA limit 4000 µg/L
worst single sample: 3380 µg/L
4/4 SYR4 2018–2019
Nitrate-Nitrite
10048 µg/L 100%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 11150 µg/L
3/4 SYR4 2018–2019
Chromium
1.95 µg/L 2%
of the EPA limit 100 µg/L
worst single sample: 2 µg/L
2/4 SYR4 2018–2019
Gross Beta Particle Activity
6.2875 pCi/L
No EPA limit set
worst single sample: 6.33 pCi/L
2/2 SYR4 2018
Arsenic
6 µg/L 60%
of the EPA limit 10 µg/L
 1/4 SYR4 2018–2019
Copper
6 µg/L 0.5%
of the EPA limit 1300 µg/L
 1/4 SYR4 2018–2019
Selenium
2 µg/L 4%
of the EPA limit 50 µg/L
 1/4 SYR4 2018–2019
59 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Dennis Anderson

Frequently asked questions about Westbourne Acres

Is Westbourne Acres tap water safe to drink?

EPA monitoring detected 10 contaminants in Westbourne Acres'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 Westbourne Acres's water?

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

How many people does Westbourne Acres serve?

Westbourne Acres reports serving 94 people in Washington, per its EPA record.

Has Westbourne Acres had any water quality violations?

The EPA has 316 violations on file for Westbourne Acres, of which 20 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.