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Tap water quality report

Greenbank Estates Water

EPA monitoring tested this supplier for 48 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

48
contaminants tested
7
detected
47
people served
4
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
Counties served
Island

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.

4
health-based violations
12
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2013-09-01 → 2013-09-30
MCL Health-based Archived 2004-09-01 → 2004-09-30
MCL Health-based Archived 2003-08-01 → 2003-08-31
MCL Health-based Archived 1994-09-01 → 1994-09-30
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2014-07-01
MR Monitoring Archived 2005-10-01 → 2005-10-31
MR Monitoring Resolved 2004-01-01
MR Monitoring Archived 1995-07-01 → 1995-07-31
MR Monitoring Archived 1994-02-01 → 1994-02-28

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
0.00060 mg/L 4%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Nitrate
2590 µg/L 26%
of the EPA limit 10000 µg/L
 8/8 SYR4 2012–2019
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 1/1 SYR4 2019
Barium
6 µg/L 0.3%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Copper
40 µg/L 3.1%
of the EPA limit 1300 µg/L
 1/1 SYR4 2019
Chromium
5 µg/L 5%
of the EPA limit 100 µg/L
 1/1 SYR4 2019
Nitrate-Nitrite
2590 µg/L 26%
of the EPA limit 10000 µg/L
 1/1 SYR4 2019
41 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChloroformDichloromethaneDalaponDibromochloromethaneDinosebEthylbenzeneFluorideLeadMercuryNitritePentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Andrew Campbell

Frequently asked questions about Greenbank Estates Water

Is Greenbank Estates Water tap water safe to drink?

EPA monitoring detected 7 contaminants in Greenbank Estates Water'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 Greenbank Estates Water's water?

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

How many people does Greenbank Estates Water serve?

Greenbank Estates Water reports serving 47 people in Washington, per its EPA record.

Has Greenbank Estates Water had any water quality violations?

The EPA has 12 violations on file for Greenbank Estates Water, of which 4 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.