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Tap water quality report

Cayou Valley Homeowners Assoc

EPA monitoring tested this supplier for 41 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

41
contaminants tested
11
detected
31
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
Counties served
San Juan

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
25
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2023-07-01
Other Monitoring Resolved 2015-07-01
MR Monitoring Resolved 2014-10-01 → 2014-12-31
MR Monitoring Resolved 2014-10-01 → 2014-12-31
Other Monitoring Resolved 2013-07-01
Other Monitoring Resolved 2011-07-01
MR Monitoring Resolved 2007-01-01
MR Monitoring Resolved 2007-01-01
MR Monitoring Resolved 2007-01-01
MR Monitoring Resolved 2007-01-01

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
0.0011 mg/L 7.3%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
Bromodichloromethane
27.56 µg/L
No EPA limit set
worst single sample: 29 µg/L
9/11 SYR4 2012–2019
Bromoform
17.94 µg/L
No EPA limit set
worst single sample: 21.1 µg/L
9/11 SYR4 2012–2019
Chloroform
14.64 µg/L
No EPA limit set
worst single sample: 15.4 µg/L
9/11 SYR4 2012–2019
Dibromoacetic Acid
6.38 µg/L
No EPA limit set
worst single sample: 6.7 µg/L
9/9 SYR4 2012–2018
Dibromochloromethane
30.76 µg/L
No EPA limit set
worst single sample: 34.8 µg/L
9/11 SYR4 2012–2019
TTHM
84.2 µg/L 105%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 92.4 µg/L
9/9 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
13.38 µg/L 22%
of the EPA limit 60 µg/L
worst single sample: 13.5 µg/L
9/9 SYR4 2012–2018
Dichloroacetic Acid
4.68 µg/L
No EPA limit set
worst single sample: 4.8 µg/L
7/9 SYR4 2012–2018
Trichloroacetic Acid
2.1 µg/L
No EPA limit set
 6/9 SYR4 2012–2018
Monobromoacetic Acid
1.1 µg/L
No EPA limit set
 1/9 SYR4 2012–2018
30 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DBenzeneChlorobenzeneCarbon TetrachlorideDichloromethaneDalaponDinosebEthylbenzeneGross Beta Particle ActivityMonochloroacetic AcidNitratePentachlorophenolPicloramStyreneTetrachloroethyleneTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
William Wright

Frequently asked questions about Cayou Valley Homeowners Assoc

Is Cayou Valley Homeowners Assoc tap water safe to drink?

EPA monitoring detected 11 contaminants in Cayou Valley Homeowners Assoc'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 Cayou Valley Homeowners Assoc's water?

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

How many people does Cayou Valley Homeowners Assoc serve?

Cayou Valley Homeowners Assoc reports serving 31 people in Washington, per its EPA record.

Has Cayou Valley Homeowners Assoc had any water quality violations?

The EPA has 25 violations on file for Cayou Valley Homeowners Assoc, 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.