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Tap water quality report

Twanoh Heights Community Club

EPA monitoring tested this supplier for 50 contaminants and detected 2. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

50
contaminants tested
2
detected
118
people served
10
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Mason

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.

10
health-based violations
40
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1997-12-01 → 1997-12-31
MCL Health-based Archived 1997-12-01 → 1997-12-31
MCL Health-based Archived 1997-12-01 → 1997-12-31
MCL Health-based Archived 1997-10-01 → 1997-10-31
MCL Health-based Archived 1997-10-01 → 1997-10-31
MCL Health-based Archived 1997-10-01 → 1997-10-31
MCL Health-based Archived 1996-08-01 → 1996-08-31
MCL Health-based Archived 1996-04-01 → 1996-04-30
MCL Health-based Archived 1996-01-01 → 1996-01-31
MCL Health-based Archived 1994-07-01 → 1994-07-31

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
 11/11 LCR 2023
Lead
1 µg/L 6.7%
of the EPA limit 15 µg/L
 1/1 SYR4 2014
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, TotalArsenicBariumBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDalaponDibromochloromethaneDinosebEthylene DibromideEthylbenzeneFluorideMercuryNitrateNitrate-NitriteNitritePentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Brandy Milroy

Frequently asked questions about Twanoh Heights Community Club

Is Twanoh Heights Community Club tap water safe to drink?

EPA monitoring detected 2 contaminants in Twanoh Heights Community Club'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 Twanoh Heights Community Club's water?

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

How many people does Twanoh Heights Community Club serve?

Twanoh Heights Community Club reports serving 118 people in Washington, per its EPA record.

Has Twanoh Heights Community Club had any water quality violations?

The EPA has 40 violations on file for Twanoh Heights Community Club, of which 10 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.