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Latimer Road Water Association

What EPA’s and CDC’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
150 people
Connections
61
Water source
Groundwater bought from another system
Based in
Tillamook, OR
County
Tillamook
Owner
Local government

The short answer

Nothing in EPA’s and CDC’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. No health-based violations on file since 2016.

What was found

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.7 ppm, for the period ending June 30, 1994. None since is on file, so it is not counted as a current finding.

Nitrate, haloacetic acids (HAA5) and total trihalomethanes (TTHM): Oregon’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2020 to 2023, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits1

Nitrate

Comes from the source

Below EPA’s limits

0.75ppm

Highest yearly average, 2020 to 2023

2023: not found

Averaged by year, the highest was 0.75 ppm, in 2020, below EPA’s legal limit of 10 ppm. In 2023, the latest year on file, it wasn’t found.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Haloacetic acids (HAA5)
  • Lead
  • Total trihalomethanes (TTHM)

Violations since 2016

No health-based violations on file with EPA since 2016. There are 3 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Nitrate, haloacetic acids (HAA5) and total trihalomethanes (TTHM) results here are Oregon’s yearly averages as CDC publishes them, from 2020 on, with EPA’s national file for 2012 to 2019. Latimer Road Water Association’s own annual report, which it must send you every year, has the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; CDC’s yearly averages for Oregon cover 2020 to 2023.

Testing your own tap

Latimer Road Water Association’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Oregon certifies.

No lab Oregon certifies is within 75 miles of the area Latimer Road Water Association serves on the state’s list. Some take samples by mail; the state’s page lists them all.

Oregon State University Extension Well Water Program: Nitrate screening of well water at many of its groundwater education events. The screening is free. Water Testing Guidance for Private Wells, OSU Well Water Program.

All 91 certified labs for Oregon

Sources

PWSID OR4100881. Rebuilt from EPA data on Oct. 18, 2026.

Also in Tillamook County

All Oregon utilities

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