Public water system · IL0990550
ActiveMendota
Community water system in LaSalle County, Illinois, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,926
Service connections
2,833
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | 4H | 5200 | No | Resolved |
| 2025-07-01 | 52 | 5000 | No | Unaddressed |
| 2025-07-01 | 72 | 7000 | No | Resolved |
| 2021-01-01 | 02 | 2456 | Yes | Resolved |
| 2020-10-01 | 02 | 2456 | Yes | Resolved |
| 2020-07-01 | 02 | 2456 | Yes | Resolved |
| 2008-01-01 | 02 | 4010 | Yes | Resolved |
| 2007-10-01 | 02 | 4010 | Yes | Resolved |
| 2007-07-01 | 02 | 4010 | Yes | Resolved |
| 2007-04-01 | 02 | 4010 | Yes | Resolved |
| 2007-01-01 | 02 | 4010 | Yes | Resolved |
| 2006-10-01 | 02 | 4010 | Yes | Resolved |
Mendota: frequently asked questions
Is Mendota's water safe to drink?
Mendota is an active community water system regulated under the Safe Drinking Water Act, overseen by the IL state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Mendota?
Mendota (PWSID IL0990550) is a local government-owned community water system, regulated by the IL state drinking water program.
How many people does Mendota serve?
Mendota reports serving 6,926 people through 2,833 service connections in LaSalle County, Illinois.
Where does Mendota get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in LaSalle County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Il American-Streator | LaSalle | 19,000 | Community | Surface water |
| Ottawa | LaSalle | 18,097 | Community | Groundwater |
| Peru | LaSalle | 10,300 | Community | Groundwater |
| La Salle | LaSalle | 9,700 | Community | Groundwater |
| Marseilles | LaSalle | 5,061 | Community | Groundwater |
| Prairie Path Water Company-Lake Holiday | LaSalle | 4,750 | Community | Groundwater |