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Tap water quality report

North Hill Water Corporation

EPA monitoring tested this supplier for 68 contaminants and detected 4. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

68
contaminants tested
4
detected
100
people served
35
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.

35
health-based violations
232
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-09-07
TT Health-based Resolved 2024-09-07
TT Health-based Resolved 2022-07-25
MCL Health-based Resolved 2010-11-01 → 2010-11-30
MCL Health-based Resolved 2010-11-01 → 2010-11-30
MCL Health-based Resolved 2010-11-01 → 2010-11-30
MCL Health-based Resolved 2007-12-01 → 2007-12-31
MCL Health-based Resolved 2005-11-01 → 2005-11-30
MCL Health-based Resolved 2005-10-01 → 2005-10-31
MCL Health-based Resolved 2005-10-01 → 2005-10-31

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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
Fluoride
2554.5 µg/L 64%
of the EPA limit 4000 µg/L
worst single sample: 2600 µg/L
2/2 SYR4 2017–2018
Nitrate
55 µg/L 0.5%
of the EPA limit 10000 µg/L
 2/16 SYR4 2012–2019
Copper
10.4 µg/L 0.8%
of the EPA limit 1300 µg/L
 1/10 SYR4 2014–2017
64 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-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
NORTH HILL WATER CORPORATION
Phone
541-371-8030

Frequently asked questions about North Hill Water Corporation

Is North Hill Water Corporation tap water safe to drink?

EPA monitoring detected 4 contaminants in North Hill Water Corporation'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 North Hill Water Corporation's water?

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

How many people does North Hill Water Corporation serve?

North Hill Water Corporation reports serving 100 people in Oregon, per its EPA record.

Has North Hill Water Corporation had any water quality violations?

The EPA has 232 violations on file for North Hill Water Corporation, of which 35 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.