Tap Truth EPA drinking water records, in plain English

County drinking water records

Mercer County, IL drinking water systems

15 community water systems serve Mercer County, IL, reporting 10,635 people served in all. A system that also serves other counties counts all of its customers here.

1 of them (7%) had at least one health-based violation in the last 10 years. 4 systems still have one unresolved.

15 rely mainly on groundwater, counting water bought from other systems.

14 systems filed a lead service line inventory listing 65 lead lines, 0 galvanized lines that must be replaced and 339 lines of unknown material.

Community water systems
15
People served, sum of each system's own figure
10,635
Systems with a health-based violation, last 10 years
1
Systems with one unresolved
4
Lead service lines in inventories
65

Water systems serving Mercer County

15 systems

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

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Aledo Aledo 3,470 Groundwater 0 0 0
Viola Viola 970 Groundwater 0 0 0
Alexis Alexis 836 Groundwater 0 1 9
Sherrard Sherrard 785 Groundwater 0 0 0
Fyre Lake Water Company Sherrard and land outside it 760 Groundwater 0 0 0
Keithsburg Keithsburg 747 Groundwater 0 0 0
New Windsor Windsor 740 Groundwater 3 6 No inventory
Matherville Matherville 651 Groundwater 0 0 0
New Boston New Boston 613 Groundwater 0 1 0
Joy Joy 377 Groundwater 0 2 3
Seaton Seaton 214 Groundwater 0 0 53
North Henderson North Henderson 172 Groundwater 0 0 0
Swedona Water Association Swedona 109 Groundwater 0 0 0
M C L W System, Inc. Preemption 98 Groundwater 0 0 0
Unity Water Corporation Outside cities and towns 93 Groundwater 0 0 0

Cities and towns in Mercer County

12 places

Back to Illinois

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