# When to Test Your Utah Tap Water & Find a Certified Lab

> Canonical source: [When to Test Your Utah Tap Water & Find a Certified Lab](https://www.utahwaterquality.com/guides/test-your-water)

Decide when a home water test adds useful information, find Utah-certified drinking-water laboratories, and prepare for proper sample collection.

Home testing · Utah Water Quality

When should you test your Utah tap water?

A useful test starts with your water source and a specific concern. Ask the laboratory what to collect before filling a bottle.

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## First, confirm your water source

For a public supply, begin with the provider’s latest report and current notices. [Utah DEQ notes that utilities already test routinely](https://deq.utah.gov/ddw/consumer-guide). A home test can add information about your particular tap or treatment device. A [private well](https://www.utahwaterquality.com/private-wells) needs its own testing plan.

## When does a home test add value?

- **Lead or plumbing concerns:** lead cannot be identified by taste, smell, or sight. [EPA recommends testing to establish the result at your home](https://www.epa.gov/ground-water-and-drinking-water/basic-information-about-lead-drinking-water).
- **Private well:** Utah Public Health Laboratory recommends annual nitrate, pH, total dissolved solids, and total coliform/E. coli testing, plus local requirements. See [Utah’s well guidance](https://uphl.utah.gov/environmental-chemistry-program/env_chem_privatewells/).
- **Well repairs, flooding, or a sudden water change:** [EPA recommends additional well testing](https://www.epa.gov/privatewells/protect-your-homes-water). Contact the local health department for the appropriate tests and immediate advice.
- **Treatment performance:** ask the laboratory which samples would show whether the device is reducing the target substance.

## Find a lab certified for the test you need

[Utah DEQ’s laboratory resources](https://deq.utah.gov/ddw/lab-sampling-resources) link to certified labs and the substances they test. Confirm that the lab handles drinking-water samples and is certified for your requested analysis. Ask about the test, collection kit, delivery arrangements, and full cost before ordering.

A broad package is not automatically the best match. Describe your source, plumbing, nearby land uses, and the change you noticed. Let the lab or health department help narrow the question.

## Follow the lab’s collection instructions

Different tests need different collection methods. [Utah DEQ lists sample temperature, holding time, labeling, and tap preparation among common sources of error](https://deq.utah.gov/ddw/lab-sampling-resources). Ask whether to use first-draw or flushed water, which bottle to use, and when the sample must arrive. Do not substitute instructions from another test.

## Keep the result, unit, and sample location together

Keep a copy of the laboratory report, collection date, faucet or well location, and whether water passed through treatment. Ask the lab or health department to explain flagged findings. Use the results to choose a targeted next step rather than assuming every detected substance requires a filter.

## Official sources

- [Utah DEQ: Certified Labs and Sampling Resources ↗](https://deq.utah.gov/ddw/lab-sampling-resources)
- [Utah DEQ: Drinking Water Consumer Guide ↗](https://deq.utah.gov/ddw/consumer-guide)
- [Utah Public Health Laboratory: Private Wells ↗](https://uphl.utah.gov/environmental-chemistry-program/env_chem_privatewells/)
- [EPA: Protect Your Home’s Water ↗](https://www.epa.gov/privatewells/protect-your-homes-water)
- [EPA: Lead in Drinking Water ↗](https://www.epa.gov/ground-water-and-drinking-water/basic-information-about-lead-drinking-water)

Report years and sample dates may differ from the review date of this guide. Follow the issuing utility or health authority for an active advisory.

## Keep reading

- [How to Read a Utah Water Quality Report](https://www.utahwaterquality.com/guides/read-water-quality-report)
- [Water Filter or Softener? A Guide for Utah Homes](https://www.utahwaterquality.com/guides/filters-and-softeners)
- [Private Well Water Testing in Utah](https://www.utahwaterquality.com/private-wells)
- [All water guides](https://www.utahwaterquality.com/guides)