Is Smith Prairie 251 Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Thurston

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MR	Monitoring	Resolved	1997-10-01 → 2000-01-01
MR	Monitoring	Archived	1996-06-01 → 1996-06-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	6795 µg/L 68% of the EPA limit 10000 µg/L worst single sample: 7200 µg/L	30/30	SYR4	2012–2019
Lead	0.0096 mg/L 64% of the EPA limit 0.0150 mg/L	12/12	LCR	2024
Dibromochloromethane	0.8850 µg/L No EPA limit set worst single sample: 0.9000 µg/L	4/4	SYR4	2013–2017
TTHM	3.295 µg/L 4.1% of the EPA limit 80 µg/L worst single sample: 3.4 µg/L	4/4	SYR4	2013–2017
Bromodichloromethane	1.46 µg/L No EPA limit set worst single sample: 1.5 µg/L	3/4	SYR4	2013–2017
Chloroform	1 µg/L No EPA limit set	3/4	SYR4	2013–2017
Dichloroacetic Acid	1.49 µg/L No EPA limit set worst single sample: 1.5 µg/L	2/3	SYR4	2013–2017
Total Haloacetic Acids (HAA5)	2.355 µg/L 3.9% of the EPA limit 60 µg/L worst single sample: 2.4 µg/L	2/3	SYR4	2013–2017
Nitrate-Nitrite	4560 µg/L 46% of the EPA limit 10000 µg/L	1/1	SYR4	2018
Trichloroacetic Acid	1.1 µg/L No EPA limit set	1/3	SYR4	2013–2017

45 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, TotalArsenicBariumBenzeneBeryllium, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDibromoacetic AcidDinosebEthylbenzeneFluorideLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitritePentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: Kimberly Gubbe

Frequently asked questions about Smith Prairie 251

Is Smith Prairie 251 tap water safe to drink?

EPA monitoring detected 10 contaminants in Smith Prairie 251'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 Smith Prairie 251's water?

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

How many people does Smith Prairie 251 serve?

Smith Prairie 251 reports serving 42 people in Washington, per its EPA record.

Has Smith Prairie 251 had any water quality violations?

The EPA has 2 violations on file for Smith Prairie 251, 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.