Tap WaterIndex

← Oregon

Tap water quality report

Kelso Water Assn

EPA monitoring tested this supplier for 69 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
8
detected
300
people served
19
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Ground water
Ownership
Private
Counties served
Clackamas

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.

19
health-based violations
85
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-07-01 → 2003-07-31
MCL Health-based Resolved 2003-07-01 → 2003-07-31
MCL Health-based Resolved 2000-12-01 → 2000-12-31
MCL Health-based Resolved 2000-12-01 → 2000-12-31
MCL Health-based Resolved 1999-09-01 → 1999-09-30
MCL Health-based Resolved 1997-10-01 → 1997-10-31
MCL Health-based Resolved 1997-10-01 → 1997-10-31
MCL Health-based Resolved 1997-08-01 → 1997-08-31
MCL Health-based Resolved 1997-08-01 → 1997-08-31
MCL Health-based Resolved 1997-07-01 → 1997-07-31

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
235 µg/L 2.4%
of the EPA limit 10000 µg/L
 16/18 SYR4 2012–2019
Copper
202.55 µg/L 16%
of the EPA limit 1300 µg/L
worst single sample: 520 µg/L
15/15 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2027
Lead
1.1225 µg/L 7.5%
of the EPA limit 15 µg/L
worst single sample: 1.15 µg/L
2/15 SYR4 2012–2018
Barium
2.1 µg/L 0.1%
of the EPA limit 2000 µg/L
 1/1 SYR4 2014
Nitrate-Nitrite
235 µg/L 2.4%
of the EPA limit 10000 µg/L
 1/1 SYR4 2014
TTHM
0.6100 µg/L 0.8%
of the EPA limit 80 µg/L
 1/9 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
13.4 µg/L 22%
of the EPA limit 60 µg/L
 1/9 SYR4 2012–2019
61 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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KELSO WATER ASSN
Phone
503-806-4734
Email
[email protected]

Frequently asked questions about Kelso Water Assn

Is Kelso Water Assn tap water safe to drink?

EPA monitoring detected 8 contaminants in Kelso 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 Kelso Water Assn's water?

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

How many people does Kelso Water Assn serve?

Kelso Water Assn reports serving 300 people in Oregon, per its EPA record.

Has Kelso Water Assn had any water quality violations?

The EPA has 85 violations on file for Kelso Water Assn, of which 19 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.