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Safe water, plainly reported.
Clear

No advisories in effect

Water across the whole system is safe to drink right now. If that ever changes, the notice appears here first.

All notices and advisories

Serving Sterling Falls and Caldwell County

Your water.
Tested, treated, and reported.

What is in your water, what your service line is made of, what your bill pays for, and what to do when something is wrong. Written plainly, for all 112,400 of us.

112,400
People Served
41,600
Service Connections
0
Water Quality Violations in 2025
1,842
Lead Service Lines Remaining

Explore

Explore the data

Every chart on this site can be read as a table, downloaded, and shared as a link that shows your neighbor exactly what you are looking at.

Built for every household

Water information has to reach every household

When an advisory goes out, it has to reach everyone: people who use screen readers, people who only use a keyboard, people reading on an old phone in a parking lot, and people who read Spanish more comfortably than English. That is why this site is built the way it is.

Read our accessibility statement, or tell us when something does not work and we will fix it.

  • Every chart is also a table you can read or download
  • Everything works with a keyboard alone, including the address lookup
  • Test results never rely on color: every status has an icon and a word
  • The home page, the Water Quality Report, and the advisories page are published in Spanish
  • Every technical term is explained where it appears, not in a glossary somewhere else

Open data

Take the data with you

Whole datasets as CSV, Excel, or JSON, generated in your browser. Every dashboard also offers filtered downloads next to its charts. No account, no forms.

Water quality data covers 2016 through 2025; the service line inventory begins in 2021. Non-revenue water is currently 12%.

  • Water quality results

    Every substance, every year, with the limit it is measured against.

    Coverage
    2016 through 2025
    Rows
    140
    Formats
    CSV, JSON, Excel
    Updated

    Updated twice yearly · as of period ending June 30, 2026

    LicenseOpen data. Free to use, republish, and build on, including commercially, with attribution to Caldwell Regional Water Authority. Provided as-is with no warranty of fitness for a particular purpose; where a figure here differs from a filed compliance report, the filed report controls.

  • Service line inventory, by address

    The published address-level records: material on the utility side and the customer side, how it was verified, and any replacement year.

    Coverage
    Current inventory, all published addresses
    Rows
    432
    Formats
    CSV, JSON, Excel
    Updated

    Updated annually · as of January 30, 2026 submission

    LicenseOpen data. Free to use, republish, and build on, including commercially, with attribution to Caldwell Regional Water Authority. Provided as-is with no warranty of fitness for a particular purpose; where a figure here differs from a filed compliance report, the filed report controls.

  • Service line inventory, by year

    System totals for each of the four material categories, every January 30 since 2021.

    Coverage
    2021 through 2026
    Rows
    6
    Formats
    CSV, JSON, Excel
    Updated

    Updated annually · as of January 30, 2026 submission

    LicenseOpen data. Free to use, republish, and build on, including commercially, with attribution to Caldwell Regional Water Authority. Provided as-is with no warranty of fitness for a particular purpose; where a figure here differs from a filed compliance report, the filed report controls.

  • System performance

    Main breaks, non-revenue water, production, interruptions, and restoration time by year.

    Coverage
    2016 through 2025
    Rows
    10
    Formats
    CSV, JSON, Excel
    Updated

    Updated monthly · as of July 2026

    LicenseOpen data. Free to use, republish, and build on, including commercially, with attribution to Caldwell Regional Water Authority. Provided as-is with no warranty of fitness for a particular purpose; where a figure here differs from a filed compliance report, the filed report controls.

  • Notices and advisories

    Every notice issued, with its tier, dates, affected areas, and guidance.

    Coverage
    Complete archive
    Rows
    8
    Formats
    CSV, JSON, Excel
    Updated

    Updated daily · as of Aug 10, 2026

    LicenseOpen data. Free to use, republish, and build on, including commercially, with attribution to Caldwell Regional Water Authority. Provided as-is with no warranty of fitness for a particular purpose; where a figure here differs from a filed compliance report, the filed report controls.

  • Source water and conservation

    Reservoir level, river flow, rainfall, and the conservation stage, month by month.

    Coverage
    2016 through 2026
    Rows
    127
    Formats
    CSV, JSON, Excel
    Updated

    Updated weekly · as of week ending Aug 7, 2026

    LicenseOpen data. Free to use, republish, and build on, including commercially, with attribution to Caldwell Regional Water Authority. Provided as-is with no warranty of fitness for a particular purpose; where a figure here differs from a filed compliance report, the filed report controls.

Our commitments

Plain words first

Every term on this site is explained where you meet it. If a sentence needs a chemistry degree, it is our sentence that is wrong.

Bad news travels first

Advisories go on this page the hour they are issued, and stay in the archive after they are lifted. The 2019 manganese notice is still there, and so is the reason for it.

Address by address

You should not have to call us to learn what your own service line is made of. Type your address and the record is on the screen.

Caldwell Regional Water Authority publishes this data under the Safe Drinking Water Act, the Lead and Copper Rule Improvements, and Virginia Waterworks Regulations. Questions about your water? Call (555) 011-1954 or email water@caldwellwater.gov.