Tap WaterIndex

← Washington

Tap water quality report

Washington State University

EPA monitoring tested this supplier for 87 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

87
contaminants tested
7
detected
21,506
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
State government
Counties served
Whitman

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
23
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Archived 2008-04-01 → 2008-06-30
MR Monitoring Resolved 2007-10-01 → 2007-12-31
MR Monitoring Resolved 2007-10-01 → 2007-12-31
MR Monitoring Resolved 2007-10-01 → 2007-12-31
MR Monitoring Resolved 2007-10-01 → 2007-12-31
MR Monitoring Resolved 2007-10-01 → 2007-12-31
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30

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
Lead
0.0049 mg/L 33%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2024
Lithium
16.6 µg/L
No EPA limit set
 8/8 UCMR-5 2025
Barium
108.955 µg/L 5.4%
of the EPA limit 2000 µg/L
worst single sample: 115 µg/L
4/4 SYR4 2012–2018
Chloroform
1.078 µg/L
No EPA limit set
worst single sample: 1.12 µg/L
4/27 SYR4 2012–2019
Fluoride
515.65 µg/L 13%
of the EPA limit 4000 µg/L
worst single sample: 520 µg/L
4/4 SYR4 2012–2018
TTHM
1.078 µg/L 1.3%
of the EPA limit 80 µg/L
worst single sample: 1.12 µg/L
4/4 SYR4 2012
Copper
3.44 µg/L 0.3%
of the EPA limit 1300 µg/L
 1/4 SYR4 2012–2018
80 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebEthylene DibromideEthylbenzeneHfpo-DaLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
John Baldwin

Frequently asked questions about Washington State University

Is Washington State University tap water safe to drink?

EPA monitoring detected 7 contaminants in Washington State 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 Washington State University's water?

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

How many people does Washington State University serve?

Washington State University reports serving 21,506 people in Washington, per its EPA record.

Has Washington State University had any water quality violations?

The EPA has 23 violations on file for Washington State 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.