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Tap water quality report

Millwood City of

EPA monitoring tested this supplier for 64 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

64
contaminants tested
7
detected
1,925
people served
10
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Spokane

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.

10
health-based violations
17
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2022-11-01 → 2022-11-30
MCL Health-based Archived 1999-01-01 → 1999-01-31
MCL Health-based Archived 1999-01-01 → 1999-01-31
MCL Health-based Archived 1999-01-01 → 1999-01-31
MCL Health-based Archived 1995-12-01 → 1995-12-31
MCL Health-based Archived 1995-07-01 → 1995-07-31
MCL Health-based Archived 1992-12-01 → 1992-12-31
MCL Health-based Archived 1991-10-01 → 1991-10-31
MCL Health-based Archived 1991-10-01 → 1991-10-31
MCL Health-based Archived 1991-10-01 → 1991-10-31

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
1930 µg/L 19%
of the EPA limit 10000 µg/L
worst single sample: 1940 µg/L
48/48 SYR4 2012–2019
Lead
0.0054 mg/L 36%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Arsenic
4.469 µg/L 45%
of the EPA limit 10 µg/L
worst single sample: 4.59 µg/L
3/3 SYR4 2016
Barium
30.61 µg/L 1.5%
of the EPA limit 2000 µg/L
worst single sample: 31 µg/L
3/3 SYR4 2016
Copper
18.045 µg/L 1.4%
of the EPA limit 1300 µg/L
worst single sample: 19.6 µg/L
3/3 SYR4 2016
Nitrate-Nitrite
1622 µg/L 16%
of the EPA limit 10000 µg/L
worst single sample: 1660 µg/L
3/3 SYR4 2016
Lead
2.11 µg/L 14%
of the EPA limit 15 µg/L
 1/3 SYR4 2016
57 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, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEndrinEthylbenzeneFluorideHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitritePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Matt Erdahl

Frequently asked questions about Millwood City of

Is Millwood City of tap water safe to drink?

EPA monitoring detected 7 contaminants in Millwood City of'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 Millwood City of's water?

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

How many people does Millwood City of serve?

Millwood City of reports serving 1,925 people in Washington, per its EPA record.

Has Millwood City of had any water quality violations?

The EPA has 17 violations on file for Millwood City of, of which 10 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.