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Idaho › City overview

Lead service lines in Caldwell, ID

49 water utilities serve Caldwell, with approximately 81,329 people served.

Last verified from EPA SDWIS + utility inventories: 2026-04-14
Known lead
0
Galvanized
0
Unknown
0
% unknown
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Lead service lines in Caldwell, ID

What you should know

Caldwell's water systems serve about 81,000 people across 49 separate water utilities. The largest is the City of Caldwell, which serves roughly 74,000 residents.

Currently, there are no confirmed lead service lines reported in Caldwell's inventories. However, "no confirmed cases" does not mean zero risk—it often means data collection is still underway or incomplete. Many water systems nationwide haven't finished mapping their service lines, especially in older neighborhoods where lead pipes were more common (typically homes built before 1980).

Why this matters

Lead service lines are pipes that connect your home to the water main buried under the street. If present, they can leach lead into your drinking water, especially if water is acidic or sits in pipes overnight. The health effects of lead exposure are serious, particularly for children under 6 and pregnant people—even low levels can affect development and learning.

What Caldwell's utilities are doing

Idaho requires water systems to develop lead service line inventories and share them with the public. Caldwell's utilities are in the process of documenting which homes have lead, galvanized steel, or unknown pipe materials. The data shown here reflects what utilities have reported so far.

If your water system hasn't reported complete data yet, it means the survey or mapping is ongoing. You can ask your utility directly about the status and timeline.

How to protect your family right now

  • Get your water tested if your home was built before 1980 or you're concerned about lead.
  • Flush your taps each morning or after a few hours without use (let water run 30 seconds to 2 minutes).
  • Use cold water for drinking, cooking, and infant formula—hot water dissolves lead more readily.
  • Consider a filter certified for lead removal (NSF/ANSI Standard 53) if you want extra protection while awaiting test results.

For health concerns, contact your doctor or the CDC's lead hotline (1-800-CDC-INFO).

Next steps for residents

  • Contact your water utility to ask about your service line material and request a free or low-cost test kit.
  • Review your utility's lead service line inventory when it becomes available.
  • If your home has a known or suspected lead line, ask about replacement programs and grants.
  • Keep children and pregnant people's lead exposure low using the protective steps above.

Utilities serving Caldwell

Common questions

Does Caldwell have lead in the water?

No lead service lines have been confirmed in Caldwell's water system inventories so far. However, data collection is ongoing, and older homes (built before 1980) are at higher risk. Contact your water utility to ask about your specific service line.

How do I know if my house has a lead service line?

Your water utility can tell you based on their inventory or service records. You can also ask a plumber to inspect the line where it enters your home. The City of Caldwell and other local utilities can provide this information for free.

Is it safe to drink tap water in Caldwell?

Caldwell's water meets federal safety standards. However, if your home has a lead service line or old pipes, lead can enter your water. Flushing taps, using cold water for drinking, and getting your water tested are simple ways to reduce risk.

What should I do if I think my child was exposed to lead?

Contact your pediatrician or doctor, who can order a blood lead test. The CDC also provides guidance on lead exposure and health at cdc.gov/lead. Early detection and management are important.