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Tap water quality report

Golden Valley Water Assn

EPA monitoring tested this supplier for 66 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

66
contaminants tested
11
detected
138
people served
9
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
Counties served
Grant

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.

9
health-based violations
55
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2021-01-01 → 2021-12-31
MCL Health-based Resolved 2020-01-01 → 2020-12-31
MCL Health-based Resolved 2020-01-01 → 2020-03-31
MCL Health-based Resolved 2019-01-01 → 2019-12-31
MCL Health-based Resolved 2018-01-01 → 2018-12-31
MCL Health-based Resolved 2018-01-01 → 2018-12-31
MCL Health-based Resolved 2017-10-01 → 2017-12-31
MCL Health-based Resolved 2017-10-01 → 2017-12-31
MCL Health-based Resolved 2015-01-01 → 2015-12-31
Other Monitoring Resolved 2023-07-01

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
10500 µg/L 105%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 10900 µg/L
60/60 SYR4 2012–2019
Nitrate-Nitrite
10455 µg/L 105%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 10900 µg/L
30/30 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
Arsenic
2.33 µg/L 23%
of the EPA limit 10 µg/L
 1/1 SYR4 2018
Barium
13.2 µg/L 0.7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2018
Copper
0.6500 µg/L 0.1%
of the EPA limit 1300 µg/L
 1/1 SYR4 2018
Chromium
0.9100 µg/L 0.9%
of the EPA limit 100 µg/L
 1/1 SYR4 2018
Fluoride
500 µg/L 13%
of the EPA limit 4000 µg/L
 1/1 SYR4 2018
Lead
0.2600 µg/L 1.7%
of the EPA limit 15 µg/L
 1/1 SYR4 2018
Selenium
1.92 µg/L 3.8%
of the EPA limit 50 µg/L
 1/1 SYR4 2018
Thallium, Total
0.2300 µg/L 12%
of the EPA limit 2 µg/L
 1/1 SYR4 2018
55 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitritePentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Wesley Trammell

Frequently asked questions about Golden Valley Water Assn

Is Golden Valley Water Assn tap water safe to drink?

EPA monitoring detected 11 contaminants in Golden Valley Water Assn'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 Golden Valley Water Assn's water?

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

How many people does Golden Valley Water Assn serve?

Golden Valley Water Assn reports serving 138 people in Washington, per its EPA record.

Has Golden Valley Water Assn had any water quality violations?

The EPA has 55 violations on file for Golden Valley Water Assn, of which 9 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.