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Tap water quality report

Warren 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
2,050
people served
11
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Ground water
Ownership
Private
Counties served
Columbia

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.

11
health-based violations
45
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-10-01 → 2010-10-31
MCL Health-based Resolved 2010-10-01 → 2010-10-31
MCL Health-based Resolved 2010-10-01 → 2010-10-31
MCL Health-based Resolved 2010-10-01 → 2010-10-31
MCL Health-based Resolved 2007-01-01 → 2007-01-31
MCL Health-based Resolved 1999-12-01 → 1999-12-31
MCL Health-based Resolved 1999-12-01 → 1999-12-31
MCL Health-based Resolved 1998-10-01 → 1998-10-31
TT Health-based Resolved 1998-01-01
TT Health-based Resolved 1998-01-01

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 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
Copper
518 µg/L 40%
of the EPA limit 1300 µg/L
 30/34 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2024
Nitrate
500 µg/L 5%
of the EPA limit 10000 µg/L
 4/64 SYR4 2012–2019
Lead
3 µg/L 20%
of the EPA limit 15 µg/L
 3/34 SYR4 2013–2019
Barium
6.46 µg/L 0.3%
of the EPA limit 2000 µg/L
 2/6 SYR4 2013–2017
Fluoride
160 µg/L 4%
of the EPA limit 4000 µg/L
 2/6 SYR4 2013–2017
Nitrate-Nitrite
500 µg/L 5%
of the EPA limit 10000 µg/L
 2/6 SYR4 2013–2017
Nitrite
76.1 µg/L 7.6%
of the EPA limit 1000 µg/L
 1/6 SYR4 2013–2017
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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WARREN WATER ASSOCIATION
Phone
503-397-3280
Email
wwa.office1@gmail.com

Frequently asked questions about Warren Water Association

Is Warren Water Association tap water safe to drink?

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

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

How many people does Warren Water Association serve?

Warren Water Association reports serving 2,050 people in Oregon, per its EPA record.

Has Warren Water Association had any water quality violations?

The EPA has 45 violations on file for Warren Water Association, of which 11 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.