Lead Service Line Compliance in Indiana Water Systems

Indiana's 3,762 water utilities serve approximately 5.7 million people. Under the EPA's Lead and Copper Rule Revisions (LCRR), these systems were required to submit initial lead service line (LSL) inventories by October 2024, identifying which homes have lead pipes, which do not, and which are unknown.

What Indiana's October 2024 inventory shows

As of the latest reporting, Indiana's water systems have not yet submitted widespread public inventory data, or the state primacy agency has not yet compiled a statewide summary. This is not unusual—many states are still processing utility submissions and working with systems that missed the deadline. The EPA allows a compliance window, and enforcement typically follows if utilities do not submit or substantially misrepresent their data.

If your utility has not yet published its inventory online, it may still be working on verification. Contact your local water provider directly to ask:

• How many LSLs serve your area?
• What share are confirmed lead vs. confirmed non-lead?
• How many are still classified as unknown?

Why the October deadline matters

The LCRR requires utilities to move toward replacing all LSLs by 2033. Inventories are the first step—utilities cannot plan replacement programs or apply for federal funding without knowing where lead pipes exist. Unknown status is particularly important to clarify, because it can mean either:

• The records were never kept (common in older systems)
• Recent field work confirmed the material but it was miscategorized
• The utility has not yet investigated

Indiana's primacy agency, the Indiana Department of Environmental Management (IDEM), oversees compliance. If you want to check whether your utility has submitted its inventory or to report a missing one, you can contact IDEM's drinking water program.

Funding to replace lead pipes

Federal infrastructure funding (Bipartisan Infrastructure Law) has made LSL replacement more affordable. Utilities can apply for grants and low-interest loans. Even if your utility's inventory is incomplete, you can ask whether replacement programs are planned for your neighborhood.

Next steps for residents

• Contact your water utility and request a copy of its October 2024 LCRR inventory or ask for your property's LSL status.
• Check IDEM's drinking water compliance database (linked in your utility's most recent water quality report) to see if your system has submitted its inventory.
• If you rent, ask your landlord or building manager about LSL status and whether replacement is planned.
• Learn your home's age—homes built before 1950 are more likely to have lead service lines.

```json [ { "q": "Does my Indiana water utility have lead service lines?", "a": "Possibly. Indiana utilities were required to inventory their lead service lines by October 2024. Contact your water provider directly to ask for your property's status or view the utility's public inventory if posted online." }, { "q": "What does 'unknown' mean for lead service lines?", "a": "Unknown means the utility has not yet confirmed whether that service line is lead, plastic, copper, or another material. Older utilities often have incomplete records. Utilities are required to resolve unknowns through field investigation or assume the worst-case scenario for compliance." }, { "q": "Can I get my lead service line replaced for free in Indiana?", "a": "Some utilities have replacement programs or partnerships funded by federal grants or state loans. Ask your water utility about availability. If you own the property, you may also be eligible for rebates or low-interest loans through state or local programs." }, { "q": "Is lead in Indiana tap water a widespread problem?", "a": "Lead enters water through old pipes, not the water source itself. Risk depends on your home's age and your utility's LSL inventory. If you are concerned about your water, you can get it tested by a certified lab (contact your