Comparison

Compare water-testing routes

Choose the route that answers your question: supplier report, local/public-health guidance or an appropriate laboratory test.

Equally weighted, no ranking

Three water-testing routes, compared by the same seven rows
	Supplier reportConsumer Confidence Report from a public supplier	Local or public-health guidanceTesting guidance for your area and source	Laboratory testA sample you collect for a laboratory
Water source	Public supply.^{Source [1]}	Private well, or any source where the local agency gives testing guidance.^{Source [2]}	Any source. Choose a test that matches your source and question.
Sample location	The public system. A system report and a sample taken at your own tap describe different contexts.	As the local guidance specifies.	Where the laboratory’s collection instructions specify.
Question	What the supplier reports about the public system for the report year.	Which routine checks apply to your source. For a private well, EPA recommends routine checks including coliform bacteria, nitrates, total dissolved solids and pH.^{Source [2]}	The specific question you wrote down. A larger panel is not automatically the right panel.
Analytes	Those listed in the supplier’s report.	As recommended by the local guidance.	Those included in the current kit or panel: check before ordering.
Collection instructions	None: the supplier publishes the report.	Follow the local agency’s or laboratory’s instructions.	The kit’s collection, shipping and timing instructions.
Price visibility	No purchase is needed to read a published report.	Not verified	Check the provider’s current price; prices are not listed here.
Follow-up	Ask the supplier or an appropriate local authority about unresolved concerns.	Follow the local guidance on what to do with results.	Ask what follow-up may be needed before you order.

Three water-testing routes, compared by the same seven rows

Supplier report

Consumer Confidence Report from a public supplier

Water source: Public supply.^{Source [1]}
Sample location: The public system. A system report and a sample taken at your own tap describe different contexts.
Question: What the supplier reports about the public system for the report year.
Analytes: Those listed in the supplier’s report.
Collection instructions: None: the supplier publishes the report.
Price visibility: No purchase is needed to read a published report.
Follow-up: Ask the supplier or an appropriate local authority about unresolved concerns.

Local or public-health guidance

Testing guidance for your area and source

Water source: Private well, or any source where the local agency gives testing guidance.^{Source [2]}
Sample location: As the local guidance specifies.
Question: Which routine checks apply to your source. For a private well, EPA recommends routine checks including coliform bacteria, nitrates, total dissolved solids and pH.^{Source [2]}
Analytes: As recommended by the local guidance.
Collection instructions: Follow the local agency’s or laboratory’s instructions.
Price visibility: Not verified
Follow-up: Follow the local guidance on what to do with results.

Laboratory test

A sample you collect for a laboratory

Water source: Any source. Choose a test that matches your source and question.
Sample location: Where the laboratory’s collection instructions specify.
Question: The specific question you wrote down. A larger panel is not automatically the right panel.
Analytes: Those included in the current kit or panel: check before ordering.
Collection instructions: The kit’s collection, shipping and timing instructions.
Price visibility: Check the provider’s current price; prices are not listed here.
Follow-up: Ask what follow-up may be needed before you order.

Limitations

What this comparison does not establish

A system report and a sample taken at your own tap describe different contexts; do not assume one answers every possible household plumbing question.
If you do not know your water source, identify the supplier or ask the property manager first. This page does not recommend a kit for an unknown source.
Do not translate a report into a personalized health diagnosis here.

Before you buy

Check the missing information first

Sources and review

Sources show the date they were accessed. A person has not yet recorded a check date for this page.

EPA: Consumer Confidence Reports, US Environmental Protection Agency (accessed October 13, 2026) — Public-water quality reports and supplier information.
EPA: private-well water, US Environmental Protection Agency (accessed October 13, 2026) — Routine private-well testing and local guidance.

Last checked: Not yet recorded