Tap WaterIndex

← Washington

Tap water quality report

Lake Quinault

EPA monitoring tested this supplier for 51 contaminants and detected 3. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

51
contaminants tested
3
detected
1,003
people served
3
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
Counties served
Grays Harbor

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
1,326
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1999-03-01 → 1999-03-31
MCL Health-based Archived 1999-03-01 → 1999-03-31
MCL Health-based Archived 1999-03-01 → 1999-03-31
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30
MR Monitoring Resolved 2007-07-01 → 2007-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0105 mg/L 70%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Nitrate
57 µg/L 0.6%
of the EPA limit 10000 µg/L
 8/32 SYR4 2012–2019
Nitrate-Nitrite
57 µg/L 0.6%
of the EPA limit 10000 µg/L
 1/2 SYR4 2012–2019
48 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, TotalArsenicAsbestosBariumBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDalaponDibromochloromethaneDinosebEthylene DibromideEthylbenzeneFluorideLeadMercuryNitritePentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Lorn Dooley

Frequently asked questions about Lake Quinault

Is Lake Quinault tap water safe to drink?

EPA monitoring detected 3 contaminants in Lake Quinault'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 Lake Quinault's water?

EPA monitoring detected Lead, Nitrate, Nitrate-Nitrite. The full list with the level and data source for each is above.

How many people does Lake Quinault serve?

Lake Quinault reports serving 1,003 people in Washington, per its EPA record.

Has Lake Quinault had any water quality violations?

The EPA has 1326 violations on file for Lake Quinault, 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.