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Tap water quality report

Garden Valley Water Association

EPA monitoring tested this supplier for 70 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

70
contaminants tested
8
detected
84
people served
80
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Surface water
Ownership
Private
Counties served
Coos

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.

80
health-based violations
237
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Archived 2026-03-01 → 2026-03-31
TT Health-based Archived 2026-02-01 → 2026-02-28
TT Health-based Archived 2026-02-01 → 2026-02-28
TT Health-based Archived 2026-02-01 → 2026-02-28
TT Health-based Archived 2026-02-01 → 2026-02-28
TT Health-based Archived 2026-01-01 → 2026-01-31
TT Health-based Archived 2026-01-01 → 2026-01-31
TT Health-based Archived 2025-12-01 → 2025-12-31
TT Health-based Archived 2025-12-01 → 2025-12-31
TT Health-based Archived 2025-11-01 → 2025-11-30

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
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 23/23 LCR 2025
TTHM
77.725 µg/L 97%
of the EPA limit 80 µg/L
worst single sample: 89.1 µg/L
14/14 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
68.32 µg/L 114%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 70.3 µg/L
13/14 SYR4 2012–2019
Nitrate
613 µg/L 6.1%
of the EPA limit 10000 µg/L
 12/16 SYR4 2012–2019
Lead
6.5 µg/L 43%
of the EPA limit 15 µg/L
worst single sample: 6.7 µg/L
3/16 SYR4 2012–2018
Barium
28.2 µg/L 1.4%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Nitrate-Nitrite
571 µg/L 5.7%
of the EPA limit 10000 µg/L
 1/1 SYR4 2019
Xylenes, Total
2.51 µg/L 0%
of the EPA limit 10000 µg/L
 1/7 SYR4 2012–2019
62 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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GARDEN VALLEY WATER ASSOCIATION
Phone
360-265-9325
Email
[email protected]

Frequently asked questions about Garden Valley Water Association

Is Garden Valley Water Association tap water safe to drink?

EPA monitoring detected 8 contaminants in Garden Valley Water Association'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 Garden Valley Water Association's water?

EPA monitoring detected Lead, TTHM, Total Haloacetic Acids (HAA5), Nitrate, Lead, and others. The full list with the level and data source for each is above.

How many people does Garden Valley Water Association serve?

Garden Valley Water Association reports serving 84 people in Oregon, per its EPA record.

Has Garden Valley Water Association had any water quality violations?

The EPA has 237 violations on file for Garden Valley Water Association, of which 80 are health-based (a contaminant limit or required treatment was breached) and 2 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.