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Crescent WTR Supply & Impr Dist

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
900 people
Connections
315
Water source
Groundwater
Based in
Crescent, OR
County
Klamath
Owner
Local government
The 2 ZIP codes it serves

97733, 97737

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

Nitrate: Oregon’s yearly averages per water system, as CDC’s Environmental Public Health Tracking Network publishes them, 2020, with EPA’s 2012 to 2019 file for earlier years.

Uranium: EPA’s compliance monitoring file, samples taken from Aug. 27, 2018 to Feb. 11, 2019. Newer results are in the utility’s annual water quality report.

Below EPA’s limits1

Nitrate

Comes from the source

Below EPA’s limits

0.07ppm

Highest yearly average, 2020

Averaged by year, the highest was 0.07 ppm, in 2020, below EPA’s legal limit of 10 ppm. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.21 ppm, in 2017.

What handles it

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

Violations since 2016

No health-based violations on file with EPA since 2016. There are 2 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Nitrate results here are Oregon’s yearly averages as CDC publishes them, from 2020 on, with EPA’s national file for 2012 to 2019. Uranium comes from EPA’s file alone, which ends in 2019. Crescent WTR Supply & Impr Dist’s own annual report, which it must send you every year, has newer results for those and 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; EPA’s compliance samples are from Aug. 27, 2018 to Feb. 11, 2019.

Testing your own tap

Crescent WTR Supply & Impr Dist’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.

The 3 labs Oregon certifies closest to the area Crescent WTR Supply & Impr Dist serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Umpqua Research Company (Bend)

    Bend, OR · about 50 miles

    Certified for bacteria, nitrate

    (541) 863-7335

  • Eurofins Bend

    Bend, OR · about 54 miles

    Certified for bacteria, nitrate

    (360) 757-1400

  • Britebox Labs, Inc

    Bend, OR · about 58 miles

    Certified for bacteria, nitrate

    (541) 299-2008

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 OR4100244. Rebuilt from EPA data on Oct. 18, 2026.

Also in Klamath County

All Oregon utilities

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