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1,367 Indiana water systems have inventoried 2,119,585 service lines for EPA. 169,443 (8.0%) are confirmed lead and 545,847 (26%) are still of unknown material. Below: every large or city-linked Indiana utility ranked by lead lines.
Indiana water systems reported 169,443 lead service lines and 21,518 galvanized lines requiring replacement as of Q2 2026 — 8.0% of the 2,119,585 lines inventoried and 7.7% of the national lead total, ranking #5 of 51. CITIZENS WATER - INDIANAPOLIS reports the most in the state (56,766).
CITIZENS WATER - INDIANAPOLIS (56,766), SOUTH BEND WATER WORKS (27,001), HAMMOND WATER WORKS DEPARTMENT (22,380) lead the list; 119 Indiana systems report at least one lead line in total.
Find your utility in the table below, then check its published service line inventory (most utilities post an address-lookup map) or call the number on your water bill. Utilities must notify customers whose line is lead, galvanized-requiring-replacement or unknown. You can also test the pipe entering your home: lead is soft, dull gray, non-magnetic and turns shiny when scratched.
Under EPA's Lead and Copper Rule Improvements, systems must replace lead and galvanized-requiring-replacement lines within 10 years starting in 2027; systems with very high counts can receive longer deadlines. Ask your utility for its replacement plan and whether it covers the homeowner-owned portion.
Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking, flush the tap after water has sat for hours, never use hot tap water for drinking or infant formula, and confirm your actual level with a certified lab test.
Source: EPA SDWIS Service Line Inventory, Q2 2026 snapshot (updated 2026-08-18). Counts are service lines, not people.
1,311 of the 1,367 Indiana systems in EPA's Q2 2026 report have filed line counts. The 169,443 confirmed lead lines and 21,518 galvanized lines requiring replacement come from 119 systems — 9.1% of those reporting — so lead pipe in Indiana is concentrated in a small share of systems. 545,847 lines (26%) are still of unknown material, close to the national share of 22%.
The unknown category is not a footnote. Under EPA's Lead and Copper Rule Revisions (LCRR), every community water system had to submit an initial service line inventory by October 16, 2024, and lines whose material could not be documented were reported as unknown. The Lead and Copper Rule Improvements (LCRI), finalized in October 2024, require systems to keep identifying those lines, to notify customers served by a lead, galvanized-requiring-replacement or unknown line, and to replace lead and galvanized-requiring-replacement lines — generally within 10 years of the rule's November 1, 2027 compliance date. The LCRI also lowers the lead action level from 15 to 10 ppb. For Indiana, that makes the 545,847 unknown lines (26%) the pool from which future confirmed-lead counts will be drawn.
Among the 32 Indiana utilities linked to a city report on this site, 23 report at least one lead or galvanized-requiring-replacement line, 1 reports none but still has a quarter or more of its lines unverified, and 8 report no lead with most lines verified. The largest — CITIZENS WATER - INDIANAPOLIS (880,345 served), FORT WAYNE - 3 RIVERS FILTRATION PLANT (269,994 served), and INDIANA AMERICAN WATER - NORTHWEST (210,510 served) — report 56,766 lead + 195 GRR, 11,299 lead + 475 GRR, and 10,833 lead + 183 GRR respectively.
To check your own line, start with your utility: most Indiana systems publish their inventory as an address-lookup map or table, and the annual Consumer Confidence Report (CCR) names the system and its lead results. If your address shows lead, galvanized or unknown, the utility is required to have notified you; if you cannot find it, ask for the service line material on record. You can also inspect the pipe where it enters the house — lead is dull gray, soft enough to scratch shiny with a coin, and does not attract a magnet.
EPA's rule text and timelines are on its Lead and Copper Rule Improvements page. While your line is unverified, our best water filters for lead guide covers NSF/ANSI 53-certified options, and the lead in drinking water guide explains testing and health thresholds.
EPA SDWIS Service Line Inventory, Q2 2026 snapshot (updated 2026-08-18); regulatory dates from EPA's LCRR/LCRI pages.
Community systems serving 50,000+ people plus systems linked to a city report on this site (35 shown). State totals above include every reporting system.
| # | Water system | Status | Lead | GRR | Unknown | Total lines | City report |
|---|---|---|---|---|---|---|---|
| 1 | CITIZENS WATER - INDIANAPOLIS IN5249004 · 880,345 served | Lead service lines present | 56,766 | 195 | 39,935 | 374,679 | Indianapolis → |
| 2 | SOUTH BEND WATER WORKS IN5271014 · 115,000 served | Lead service lines present | 27,001 | 1,037 | 10,572 | 48,940 | South Bend → |
| 3 | HAMMOND WATER WORKS DEPARTMENT IN5245020 · 78,384 served | Lead service lines present | 22,380 | 744 | 4,518 | 28,183 | Hammond → |
| 4 | ELKHART PUBLIC WORKS AND UTILITIES IN5220008 · 46,455 served | Lead service lines present | 19,747 | 1,338 | 1,293 | 33,996 | Elkhart → |
| 5 | FORT WAYNE - 3 RIVERS FILTRATION PLANT IN5202020 · 269,994 served | Lead service lines present | 11,299 | 475 | 0 | 108,184 | Fort Wayne → |
| 6 | INDIANA AMERICAN WATER - NORTHWEST IN5245015 · 210,510 served | Lead service lines present | 10,833 | 183 | 36,484 | 91,302 | Greenwood → |
| 7 | MISHAWAKA UTILITIES IN5271009 · 49,675 served | Lead service lines present | 3,956 | 855 | 4,191 | 19,154 | Mishawaka → |
| 8 | MARION CITY WATER WORKS IN5227014 · 28,363 served | Lead service lines present | 3,094 | 0 | 0 | 11,762 | Marion → |
| 9 | LAFAYETTE WATER WORKS IN5279013 · 70,835 served | Lead service lines present | 2,614 | 11 | 67 | 30,838 | Lafayette → |
| 10 | INDIANA AMERICAN WATER - TERRE HAUTE IN5284012 · 67,765 served | Lead service lines present | 1,198 | 118 | 21,275 | 29,107 | Terre Haute → |
| 11 | VALPARAISO DEPARTMENT OF WATER WORKS IN5264029 · 36,000 served | Lead service lines present | 499 | 24 | 1,259 | 13,698 | Valparaiso → |
| 12 | INDIANA AMERICAN WATER - RICHMOND IN5289012 · 41,485 served | Lead service lines present | 372 | 55 | 9,486 | 17,178 | Richmond → |
| 13 | INDIANA AMERICAN WATER - MUNCIE IN5218012 · 74,030 served | Lead service lines present | 166 | 118 | 19,807 | 30,775 | Muncie → |
| 14 | INDIANA AMERICAN WATER - S. INDIANA IN5210005 · 104,445 served | Lead service lines present | 101 | 19 | 23,601 | 42,868 | |
| 15 | INDIANA AMERICAN WATER - KOKOMO IN5234007 · 59,313 served | Lead service lines present | 95 | 77 | 12,448 | 24,605 | Kokomo → |
| 16 | INDIANA AMERICAN WATER - NOBLESVILLE IN5229015 · 45,575 served | Lead service lines present | 33 | 166 | 1,435 | 18,665 | Noblesville → |
| 17 | CITY OF BLOOMINGTON UTILITIES IN5253002 · 83,000 served | Lead service lines present | 17 | 50 | 9,630 | 26,414 | Bloomington → |
| 18 | CROWN POINT WATER WORKS IN5245008 · 30,000 served | Lead service lines present | 15 | 184 | 2,563 | 14,347 | Crown Point → |
| 19 | ANDERSON WATER DEPARTMENT IN5248002 · 55,212 served | Lead service lines present | 8 | 1 | 21 | 23,993 | Anderson → |
| 20 | INDIANA AMERICAN WATER - JOHNSON COUNTY IN5241005 · 86,813 served | Lead service lines present | 7 | 438 | 13,514 | 35,583 | |
| 21 | SCHERERVILLE WATER DEPARTMENT IN5245041 · 30,000 served | Lead service lines present | 6 | 14 | 12,526 | 12,546 | Schererville → |
| 22 | INDIANA AMERICAN WATER - SEYMOUR IN5236005 · 20,725 served | Lead service lines present | 2 | 47 | 4,107 | 8,614 | Seymour → |
| 23 | MICHIGAN CITY DEPARTMENT OF WATER WORKS IN5246020 · 33,996 served | Lead service lines present | 2 | 0 | 0 | 13,947 | Michigan City → |
| 24 | EVANSVILLE WATER UTILITY IN5282002 · 182,444 served | Lead service lines present | 1 | 50 | 67,204 | 73,309 | Evansville → |
| 25 | HIGHLAND WATER WORKS IN5245021 · 23,984 served | Lead service lines present | 1 | 148 | 7,787 | 9,679 | Highland → |
| 26 | WATSON RURAL WATER COMPANY IN5210016 · 15,750 served | Many lines still unverified | 0 | 0 | 2,159 | 7,772 | Jeffersonville → |
| 27 | PLAINFIELD WATER WORKS IN5232020 · 34,477 served | No lead service lines reported | 0 | 0 | 210 | 11,040 | Plainfield → |
| 28 | CARMEL WATER DEPARTMENT IN5229004 · 99,927 served | No lead service lines reported | 0 | 0 | 0 | 32,275 | Carmel → |
| 29 | CITIZENS WATER OF WESTFIELD, LLC IN5229009 · 61,493 served | No lead service lines reported | 0 | 0 | 0 | 24,381 | Westfield → |
| 30 | COLUMBUS MUNICIPAL UTILITY IN5203002 · 51,122 served | No lead service lines reported | 0 | 0 | 0 | 20,917 | Columbus → |
| 31 | PURDUE UNIV. WATER WORKS IN5279015 · 50,000 served | No lead service lines reported | 0 | 0 | 0 | 226 | |
| 32 | CITY OF LAWRENCE UTILITIES IN5249005 · 49,000 served | No lead service lines reported | 0 | 0 | 0 | 15,284 | Lawrence → |
| 33 | INDIANA AMERICAN WATER - WEST LAFAYETTE IN5279020 · 35,533 served | No lead service lines reported | 0 | 0 | 0 | 15,133 | West Lafayette → |
| 34 | GOSHEN WATER UTILITY IN5220009 · 32,267 served | No lead service lines reported | 0 | 0 | 0 | 11,673 | Goshen → |
| 35 | NEW CHICAGO WATER WORKS IN5245032 · 5,500 served | No lead service lines reported | 0 | 0 | 0 | 2,495 | Hobart → |
A lead or unknown service line means lead can enter water after it leaves the treatment plant, so city-level test results understate what reaches your tap. Filter drinking and cooking water with an NSF/ANSI 53 lead-certified system, and see the lead in drinking water guide or Indiana city water reports.
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