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Tap water quality report

Evergreen Mobile Homeowners Co-Op

EPA monitoring tested this supplier for 48 contaminants and detected 3. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

48
contaminants tested
3
detected
140
people served
3
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
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.

3
health-based violations
58
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1997-05-01 → 1997-05-31
MCL Health-based Archived 1997-05-01 → 1997-05-31
MCL Health-based Archived 1997-05-01 → 1997-05-31
MR Monitoring Resolved 2025-07-01 → 2025-09-30
Other Monitoring Resolved 2025-07-01
MR Monitoring Resolved 2024-07-01 → 2024-09-30
MR Monitoring Resolved 2024-04-01 → 2024-06-30
MON Monitoring Resolved 2024-02-01 → 2024-02-29
MR Monitoring Resolved 2023-07-01 → 2023-09-30
MR Monitoring Resolved 2023-01-01 → 2023-03-31

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
Nitrate
7200 µg/L 72%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
Nitrate-Nitrite
7200 µg/L 72%
of the EPA limit 10000 µg/L
 1/1 SYR4 2019
45 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, TotalArsenicBariumBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDalaponDibromochloromethaneDinosebEthylbenzeneFluorideLeadMercuryNitritePentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Andrew Noble

Frequently asked questions about Evergreen Mobile Homeowners Co-Op

Is Evergreen Mobile Homeowners Co-Op tap water safe to drink?

EPA monitoring detected 3 contaminants in Evergreen Mobile Homeowners Co-Op'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 Evergreen Mobile Homeowners Co-Op's water?

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

How many people does Evergreen Mobile Homeowners Co-Op serve?

Evergreen Mobile Homeowners Co-Op reports serving 140 people in Washington, per its EPA record.

Has Evergreen Mobile Homeowners Co-Op had any water quality violations?

The EPA has 58 violations on file for Evergreen Mobile Homeowners Co-Op, 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.