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Tap water quality report

Walla Walla University

EPA monitoring tested this supplier for 73 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
14
detected
1,273
people served
0
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.

0
health-based violations
34
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2025-07-01
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31
MR Monitoring Resolved 2020-01-01 → 2022-12-31

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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2023
Nitrate
1200 µg/L 12%
of the EPA limit 10000 µg/L
 4/12 SYR4 2012–2018
Bromoform
3.899 µg/L
No EPA limit set
worst single sample: 4.17 µg/L
3/9 SYR4 2013–2019
TTHM
9.678 µg/L 12%
of the EPA limit 80 µg/L
worst single sample: 9.77 µg/L
3/3 SYR4 2015–2019
Bromodichloromethane
2.47 µg/L
No EPA limit set
worst single sample: 2.52 µg/L
2/9 SYR4 2013–2019
Chloroform
2.0355 µg/L
No EPA limit set
worst single sample: 2.07 µg/L
2/9 SYR4 2013–2019
Dibromochloromethane
2.795 µg/L
No EPA limit set
worst single sample: 2.8 µg/L
2/9 SYR4 2013–2019
Dichloroacetic Acid
1.245 µg/L
No EPA limit set
worst single sample: 1.25 µg/L
2/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
3.1925 µg/L 5.3%
of the EPA limit 60 µg/L
worst single sample: 3.3 µg/L
2/6 SYR4 2013–2018
Barium
76.8 µg/L 3.8%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Copper
1.44 µg/L 0.1%
of the EPA limit 1300 µg/L
 1/1 SYR4 2013
Dibromoacetic Acid
2.05 µg/L
No EPA limit set
 1/7 SYR4 2013–2019
Fluoride
469 µg/L 12%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
Selenium
1.09 µg/L 2.2%
of the EPA limit 50 µg/L
 1/1 SYR4 2013
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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteNitritePentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Harley Stafford

Frequently asked questions about Walla Walla University

Is Walla Walla University tap water safe to drink?

EPA monitoring detected 14 contaminants in Walla Walla University'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 Walla Walla University's water?

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

How many people does Walla Walla University serve?

Walla Walla University reports serving 1,273 people in Washington, per its EPA record.

Has Walla Walla University had any water quality violations?

The EPA has 34 violations on file for Walla Walla University, of which 0 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.