Water quality in Hammond, Indiana
Hammond is in Lake County. 111 active public water systems serve the county; 73 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Lake County
29 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| East Chicago Water Works East Chicago |
26,370 | 3 | 3.5 mi | |
| Munster Water Company Munster |
23,894 | 2 | 4.4 mi | |
| Whiting Water Department Whiting |
4,900 | 1 | 4.5 mi | |
| Highland Water Works Highland (highlands) |
23,984 | 0 | 4.6 mi | |
| Griffith Water Department Griffith |
16,893 | 2 | 6.3 mi | |
| Bremerton Mobile Home Park Griffith |
79 | 1 | 6.6 mi | |
| Dyer Water Department Dyer |
16,800 | 0 | 7.8 mi | |
| Crossings Mobile Home Park Merrillville |
100 | 2 | 8.4 mi | |
| Schererville Water Department Schererville |
30,000 | 1 | 9.4 mi | |
| St. John Municipal Water Utility St. John |
25,700 | 0 | 11.3 mi | |
| New Chicago Water Works Hobart |
5,500 | 0 | 11.9 mi | |
| Aqua Indiana Water Company |
1,350 | 1 | 11.9 mi | |
| Indiana American Water Northwest Gary, Merrillville |
210,510 | 0 | 13.0 mi | |
| Rockwell Shores Apartments Merrillville |
45 | 1 | 13.8 mi | |
| Crown Point Water Works Crown Point |
30,000 | 1 | 15.1 mi | |
| Cedar Gardens MHP Cedar Lake |
34 | 1 | 15.4 mi | |
| Cedar Lake Mobile Home Park Cedar Lake |
200 | 0 | 16.4 mi | |
| Cedar Lake Water Works Cedar Lake |
4,600 | 8 | 16.6 mi | |
| Sunset Harbor Condominiums Cedar Lake |
40 | 1 | 16.6 mi | |
| Cedar Lake Bible Conference Grounds Cedar Lake |
150 | 0 | 16.6 mi | |
| Cedar Lake Robins Nest Schererville |
950 | 6 | 16.9 mi | |
| Lakeshore Subdivision Association, Inc. Cedar Lake |
265 | 2 | 17.0 mi | |
| Cuii Twin Lakes Crown Point |
8,000 | 1 | 19.0 mi | |
| Noble Oaks Subdivision Water Association Cedar Lake |
70 | 0 | 19.4 mi | |
| Fairway Regional Water District Cedar Lake |
210 | 3 | 19.8 mi |
Non-community systems in Lake County (81: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Lake County, nearest to Hammond first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Indiana records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.