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Tap water quality report

Chinook Estates

EPA monitoring tested this supplier for 73 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
10
detected
455
people served
2
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Pierce

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.

2
health-based violations
8
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Archived 1992-11-01 → 1992-11-30
Other Monitoring Resolved 2015-07-01
Other Monitoring Resolved 2013-07-01
Other Monitoring Resolved 2012-07-01
Other Monitoring Resolved 2010-07-01
MR Monitoring Resolved 2009-10-01 → 2009-12-31
MR Monitoring Resolved 1997-01-01 → 1998-01-01

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
 13/13 LCR 2025
Chloroform
15.39 µg/L
No EPA limit set
worst single sample: 15.6 µg/L
4/5 SYR4 2013–2019
TTHM
17.045 µg/L 21%
of the EPA limit 80 µg/L
worst single sample: 17.3 µg/L
4/4 SYR4 2013–2017
Bromodichloromethane
2.35 µg/L
No EPA limit set
worst single sample: 2.4 µg/L
3/5 SYR4 2013–2019
Dichloroacetic Acid
8.56 µg/L
No EPA limit set
worst single sample: 8.8 µg/L
3/3 SYR4 2013–2017
Total Haloacetic Acids (HAA5)
19.17 µg/L 32%
of the EPA limit 60 µg/L
worst single sample: 19.5 µg/L
3/3 SYR4 2013–2017
Trichloroacetic Acid
10.61 µg/L
No EPA limit set
worst single sample: 10.7 µg/L
3/3 SYR4 2013–2017
Arsenic
6.95 µg/L 70%
of the EPA limit 10 µg/L
worst single sample: 7 µg/L
2/2 SYR4 2015
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
 2/2 SYR4 2015
Dibromochloromethane
0.7000 µg/L
No EPA limit set
 1/5 SYR4 2013–2019
63 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-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrateNitrate-NitriteNitritePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Sean Vance

Frequently asked questions about Chinook Estates

Is Chinook Estates tap water safe to drink?

EPA monitoring detected 10 contaminants in Chinook Estates'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 Chinook Estates's water?

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

How many people does Chinook Estates serve?

Chinook Estates reports serving 455 people in Washington, per its EPA record.

Has Chinook Estates had any water quality violations?

The EPA has 8 violations on file for Chinook Estates, of which 2 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.