City and town drinking water records

Water systems serving Johnston City, IL

1 community water system has a mapped service area in Johnston City, IL. Johnston City covers 72% of the area inside Johnston City's Census boundary and reports serving 3,509 people in all.

It had at least one health-based violation in the last 10 years, and at least one is still unresolved.

Its lead service line inventory lists 60 lead lines, 50 galvanized lines that must be replaced and 520 lines of unknown material.

Community water systems: 1
Systems with a health-based violation, last 10 years: 1
Systems with one unresolved: 1
Lead service lines in inventories: 60

Water systems serving Johnston City

1 system

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Johnston City	Covers 72% of Johnston City	3,509	Purchased surface water	1	1	60

Other cities and towns in Williamson County

14 places

Back to Williamson County, IL

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations