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Tap water quality report

La Grande, City of

EPA monitoring tested this supplier for 90 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

90
contaminants tested
8
detected
13,460
people served
14
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Ground water
Ownership
Local government
Counties served
Union

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
54
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1995-05-01 → 1995-05-31
MCL Health-based Resolved 1995-05-01 → 1995-05-31
MCL Health-based Resolved 1995-05-01 → 1995-05-31
MCL Health-based Resolved 1995-02-01 → 1995-02-28
MCL Health-based Resolved 1995-02-01 → 1995-02-28
MCL Health-based Resolved 1995-02-01 → 1995-02-28
MCL Health-based Resolved 1995-02-01 → 1995-02-28
MCL Health-based Resolved 1994-12-01 → 1994-12-31
MCL Health-based Resolved 1994-12-01 → 1994-12-31
MCL Health-based Resolved 1994-12-01 → 1994-12-31

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
Copper
30.3 µg/L 2.3%
of the EPA limit 1300 µg/L
worst single sample: 50.3 µg/L
48/62 SYR4 2014–2017
Nitrate
1348 µg/L 13%
of the EPA limit 10000 µg/L
worst single sample: 1460 µg/L
28/80 SYR4 2012–2019
TTHM
5.341 µg/L 6.7%
of the EPA limit 80 µg/L
worst single sample: 6.13 µg/L
28/41 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2023
Arsenic
6.526 µg/L 65%
of the EPA limit 10 µg/L
worst single sample: 6.97 µg/L
4/10 SYR4 2014–2017
Tetrachloroethylene
0.6900 µg/L 14%
of the EPA limit 5 µg/L
worst single sample: 0.7000 µg/L
2/14 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
34.54 µg/L 58%
of the EPA limit 60 µg/L
worst single sample: 36.3 µg/L
2/41 SYR4 2012–2019
Lead
1.36 µg/L 9.1%
of the EPA limit 15 µg/L
 1/62 SYR4 2014–2017
82 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LA GRANDE, CITY OF
Phone
541-962-1325
Email
[email protected]

Frequently asked questions about La Grande, City of

Is La Grande, City of tap water safe to drink?

EPA monitoring detected 8 contaminants in La Grande, City of'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 La Grande, City of's water?

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

How many people does La Grande, City of serve?

La Grande, City of reports serving 13,460 people in Oregon, per its EPA record.

Has La Grande, City of had any water quality violations?

The EPA has 54 violations on file for La Grande, City of, 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.