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Tap water quality report

Chart Subdivision

EPA monitoring tested this supplier for 70 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

70
contaminants tested
10
detected
125
people served
14
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Ground water
Ownership
Private
Counties served
Umatilla

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.

14
health-based violations
302
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2017-11-01 → 2017-11-30
MCL Health-based Resolved 2017-11-01 → 2017-11-30
MCL Health-based Resolved 2017-11-01 → 2017-11-30
MCL Health-based Resolved 2009-08-01 → 2009-08-31
MCL Health-based Resolved 2009-08-01 → 2009-08-31
MCL Health-based Resolved 2009-08-01 → 2009-08-31
MCL Health-based Resolved 2005-11-01 → 2005-11-30
MCL Health-based Resolved 2004-11-01 → 2004-11-30
MCL Health-based Resolved 2004-11-01 → 2004-11-30
MCL Health-based Resolved 2002-12-01 → 2002-12-31

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
4600 µg/L 46%
of the EPA limit 10000 µg/L
 18/20 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Arsenic
8.825 µg/L 88%
of the EPA limit 10 µg/L
worst single sample: 9 µg/L
2/2 SYR4 2013–2019
Combined Uranium
7.037 µg/L 23%
of the EPA limit 30 µg/L
worst single sample: 7.2 µg/L
2/2 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
7.6065 pCi/L 51%
of the EPA limit 15 pCi/L
worst single sample: 7.77 pCi/L
2/2 SYR4 2016–2019
Barium
99 µg/L 5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Fluoride
280 µg/L 7%
of the EPA limit 4000 µg/L
 1/1 SYR4 2019
Lead
4 µg/L 27%
of the EPA limit 15 µg/L
 1/16 SYR4 2012–2019
Nitrate-Nitrite
3910 µg/L 39%
of the EPA limit 10000 µg/L
 1/1 SYR4 2019
Nitrite
50 µg/L 5%
of the EPA limit 1000 µg/L
 1/1 SYR4 2019
60 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, TotalChlorobenzeneCopperCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CHART SUBDIVISION
Phone
541-567-0163
Email
[email protected]

Frequently asked questions about Chart Subdivision

Is Chart Subdivision tap water safe to drink?

EPA monitoring detected 10 contaminants in Chart Subdivision'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 Chart Subdivision's water?

EPA monitoring detected Nitrate, Lead, Arsenic, Combined Uranium, Gross Alpha, Excl. Radon And U, and others. The full list with the level and data source for each is above.

How many people does Chart Subdivision serve?

Chart Subdivision reports serving 125 people in Oregon, per its EPA record.

Has Chart Subdivision had any water quality violations?

The EPA has 302 violations on file for Chart Subdivision, of which 14 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.