Tap WaterIndex

← Washington

Tap water quality report

Kooskooskie Cabin Owners Inc.

EPA monitoring tested this supplier for 73 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
9
detected
45
people served
3
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.

3
health-based violations
423
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2000-08-01 → 2000-08-31
MCL Health-based Archived 2000-08-01 → 2000-08-31
MCL Health-based Archived 2000-08-01 → 2000-08-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31

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
 10/10 LCR 2023
Nitrate
2400 µg/L 24%
of the EPA limit 10000 µg/L
 10/34 SYR4 2012–2019
TTHM
1.28 µg/L 1.6%
of the EPA limit 80 µg/L
worst single sample: 1.34 µg/L
3/3 SYR4 2013–2017
Barium
6.5725 µg/L 0.3%
of the EPA limit 2000 µg/L
worst single sample: 6.75 µg/L
2/2 SYR4 2012–2019
Copper
8.3755 µg/L 0.6%
of the EPA limit 1300 µg/L
worst single sample: 8.59 µg/L
2/2 SYR4 2012–2019
Dibromochloromethane
0.7400 µg/L
No EPA limit set
 2/16 SYR4 2012–2019
Fluoride
2423 µg/L 61%
of the EPA limit 4000 µg/L
worst single sample: 2450 µg/L
2/2 SYR4 2012–2019
Bromoform
0.6000 µg/L
No EPA limit set
 1/16 SYR4 2012–2019
Chloroform
0.5800 µg/L
No EPA limit set
 1/16 SYR4 2012–2019
64 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, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrate-NitriteNitritePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Harley Stafford

Frequently asked questions about Kooskooskie Cabin Owners Inc.

Is Kooskooskie Cabin Owners Inc. tap water safe to drink?

EPA monitoring detected 9 contaminants in Kooskooskie Cabin Owners Inc.'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 Kooskooskie Cabin Owners Inc.'s water?

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

How many people does Kooskooskie Cabin Owners Inc. serve?

Kooskooskie Cabin Owners Inc. reports serving 45 people in Washington, per its EPA record.

Has Kooskooskie Cabin Owners Inc. had any water quality violations?

The EPA has 423 violations on file for Kooskooskie Cabin Owners Inc., of which 3 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.