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Tap water quality report

Chehalem Terrace Water Company

EPA monitoring tested this supplier for 5 contaminants and detected 5. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

5
contaminants tested
5
detected
30
people served
0
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
GWP
Ownership
Private
Counties served
Yamhill

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.

0
health-based violations
7
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2024-10-01
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2021-09-01 → 2022-08-31
MR Monitoring Resolved 2021-09-01 → 2022-08-31
MR Monitoring Resolved 2018-01-01
MON Monitoring Resolved 2017-09-01 → 2017-09-30
MON Monitoring Resolved 2017-08-01 → 2017-08-31

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
12.7 µg/L 85%
of the EPA limit 15 µg/L
worst single sample: 13 µg/L
7/12 SYR4 2017–2018
Lead
0.00058 mg/L 3.9%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2024
TTHM
33.72 µg/L 42%
of the EPA limit 80 µg/L
worst single sample: 34.2 µg/L
4/4 SYR4 2017–2019
Copper
199.8 µg/L 15%
of the EPA limit 1300 µg/L
worst single sample: 213 µg/L
3/12 SYR4 2017–2018
Total Haloacetic Acids (HAA5)
7.77 µg/L 13%
of the EPA limit 60 µg/L
worst single sample: 7.8 µg/L
3/4 SYR4 2017–2019

Utility contact

Contact
CHEHALEM TERRACE WATER COMPANY
Phone
503-554-8333
Email
[email protected]

Frequently asked questions about Chehalem Terrace Water Company

Is Chehalem Terrace Water Company tap water safe to drink?

EPA monitoring detected 5 contaminants in Chehalem Terrace Water Company'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 Chehalem Terrace Water Company's water?

EPA monitoring detected Lead, Lead, TTHM, Copper, Total Haloacetic Acids (HAA5). The full list with the level and data source for each is above.

How many people does Chehalem Terrace Water Company serve?

Chehalem Terrace Water Company reports serving 30 people in Oregon, per its EPA record.

Has Chehalem Terrace Water Company had any water quality violations?

The EPA has 7 violations on file for Chehalem Terrace Water Company, of which 0 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.