CAPITOL WATER CORP Lead Service Line Inventory
What you need to know
CAPITOL WATER CORP serves approximately 9,000 people in Idaho and draws water from groundwater sources. The utility has not yet completed a lead service line inventory—meaning they haven't finished mapping which homes are connected to lead pipes.
Federal law requires all water systems to inventory lead service lines by October 2024. Until that work is done, the utility cannot tell you with certainty whether your home has a lead service line.
Why this matters
Lead service lines are pipes that connect your home to the water main under the street. Water sitting in lead pipes overnight or during low-use periods can pick up lead. Even small amounts matter, especially for children and pregnant people.
Not all homes in a water system have lead lines—some may have copper, plastic, or other materials. That's why the inventory is important: it tells you what's actually in the ground near your address.
What CAPITOL WATER CORP is doing
Your utility is required by the EPA to complete a full lead service line inventory. Once finished, they must share results publicly and develop a plan to replace lead lines over time. You can check their progress by contacting them directly—they should be able to tell you where they stand on mapping.
What to do right now
If you're concerned about lead in your water:
- Contact CAPITOL WATER CORP and ask about your specific address. While they complete the inventory, the utility can provide information about your neighborhood or water quality data.
- Ask if they have funding. Many utilities are receiving money through the Bipartisan Infrastructure Law to replace lead lines. Your utility may have grants or low-interest loans available to help.
- Get your water tested. An inexpensive lab test (usually $15–30) can tell you if lead is present in water from your tap. The EPA and most state health departments have lists of certified labs.
Health questions should go to your pediatrician or the CDC's lead page.
Next steps for residents
- Contact CAPITOL WATER CORP to ask about their lead service line inventory status and your address
- Request a copy of their replacement plan once it's completed
- Consider getting your water tested while you wait for the inventory results
- Ask about lead line replacement assistance programs in your area
Key figures
| Total inventoried lines | 0 |
|---|---|
| BIL/IIJA funding received | — |
| Replacement plan status | Not reported |
| Utility's LCRR inventory | Not provided |
Frequently asked
How do I know if my house has a lead service line?
Until CAPITOL WATER CORP completes their lead service line inventory, you won't know for certain. Contact the utility directly with your address—they may have partial information. A water test can also tell you if lead is in your tap water right now.
Is lead in water dangerous?
Lead in drinking water is a health concern, especially for children under 6 and pregnant people. For health guidance specific to your situation, talk to your pediatrician or doctor, or visit the CDC website.
When will my water system finish the lead inventory?
Federal law requires completion by October 2024. Contact CAPITOL WATER CORP directly to ask where they are in the process and when results will be available.
Can I get my lead service line replaced?
Many utilities now have replacement programs and funding available through federal grants or low-interest loans. Ask CAPITOL WATER CORP about their replacement program and what assistance they offer homeowners.