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Tap water quality report

Cooperfield 678

EPA monitoring tested this supplier for 48 contaminants and detected 4. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

48
contaminants tested
4
detected
38
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Thurston

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
8
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2017-01-01 → 2017-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
MR Monitoring Resolved 2005-01-01 → 2007-12-31
Other Monitoring Resolved 1999-10-19 → 1999-12-31
MR Monitoring Archived 1996-08-01 → 1996-08-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
1600 µg/L 16%
of the EPA limit 10000 µg/L
 14/14 SYR4 2012–2019
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Arsenic
1.2 µg/L 12%
of the EPA limit 10 µg/L
 1/1 SYR4 2019
Nitrate-Nitrite
1510 µg/L 15%
of the EPA limit 10000 µg/L
 1/1 SYR4 2019
44 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, TotalBariumBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDalaponDibromochloromethaneDinosebEthylbenzeneFluorideLeadMercuryNitritePentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Kimberly Gubbe

Frequently asked questions about Cooperfield 678

Is Cooperfield 678 tap water safe to drink?

EPA monitoring detected 4 contaminants in Cooperfield 678'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 Cooperfield 678's water?

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

How many people does Cooperfield 678 serve?

Cooperfield 678 reports serving 38 people in Washington, per its EPA record.

Has Cooperfield 678 had any water quality violations?

The EPA has 8 violations on file for Cooperfield 678, 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.