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Crystal Mountain

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
88 people
Connections
52
Water source
Groundwater
Based in
Boone, NC
County
Watauga
Owner
Private

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, arsenic, haloacetic acids (HAA5), total trihalomethanes (TTHM) and uranium: North Carolina’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.

Chromium (total) and fluoride: EPA’s compliance monitoring file, samples taken from March 18, 2013 to Jan. 28, 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

1.3ppm

Highest yearly average, 2020 to 2023

2023 average: 0.85 ppm

Averaged by year, the highest was 1.3 ppm, in 2021, below EPA’s legal limit of 10 ppm. In 2023, the latest year on file, it averaged 0.85 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 1.9 ppm, in 2015.

What handles it

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

Violations since 2016

No health-based violations on file with EPA since 2016. There is 1 monitoring or reporting violation: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Nitrate, arsenic, haloacetic acids (HAA5), total trihalomethanes (TTHM) and uranium results here are North Carolina’s yearly averages as CDC publishes them, from 2020 on, with EPA’s national file for 2012 to 2019. Chromium (total) and fluoride come from EPA’s file alone, which ends in 2019. Crystal Mountain’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 North Carolina cover 2020 to 2023; EPA’s compliance samples are from March 18, 2013 to Jan. 28, 2019.

Testing your own tap

Crystal Mountain’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 North Carolina certifies.

No lab North Carolina certifies is within 75 miles of the area Crystal Mountain serves on the state’s list. Some take samples by mail; the state’s page lists them all.

All 112 certified labs for North Carolina

Sources

PWSID NC0195110. Rebuilt from EPA data on Oct. 18, 2026.

Towns it serves

Also in Watauga County

All North Carolina utilities

What to do next