Indiana · population 24,250
Lead pipes in St. John, IN
No lead lines reported
Most of St. John (population 24,250) gets its water from St. John Municipal Water Utility, which reported 10,060 service lines and no lead, galvanized or unknown lines.
0% of St. John Municipal Water Utility's service lines are lead or galvanized requiring replacement, lower than the Indiana average (9.0%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0%
- Unknown 0%
- Non-lead 100%
Latest lead test for St. John Municipal Water Utility (Jan 2024–Dec 2026): 2.9 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for St. John Municipal Water Utility.
Water systems serving St. John
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| St. John Municipal Water UtilityMain system | 0 | 0 | 0 | 0% |
| Schererville Water DepartmentServes nearby areas | 6 | 14 | 12,526 | 0.2% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in St. John
The counts above cover the whole water system. To see whether your line is lead, look up your address on St. John Municipal Water Utility's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- Schererville20 lead + galv. lines
- Dyer93 lead + galv. lines
- Cedar Lake7 lead + galv. lines
- Griffith16 lead + galv. lines
- Crown Point199 lead + galv. lines
- Highland149 lead + galv. lines
- Merrillville11,016 lead + galv. lines
- Lowell26 lead + galv. lines
Check another water system
Questions
Does St. John, IN have lead pipes?
St. John Municipal Water Utility, which serves St. John, reported no lead, galvanized or unknown service lines.
Who supplies water to St. John?
EPA's service area maps place most of St. John in St. John Municipal Water Utility's service area (PWSID IN5245043). Schererville Water Department also serves parts of the city or nearby areas.
How do I check whether my St. John home has a lead service line?
Search your address on St. John Municipal Water Utility's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in St. John be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask St. John Municipal Water Utility whether your street is scheduled and whether it covers the private side.