Skip to content
AquaCensus

Public water system · IL0111050

Active

Tiskilwa

Community water system in Bureau County, Illinois, drawing primarily on groundwater.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

740

Service connections

360

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDIL0111050
System typeCommunity water system
Activity statusActive
Population served740
Service connections360
Primary water sourceGroundwater
Owner typeLocal government
Primacy agencyIL state drinking water program
City servedTiskilwa
StateIllinois
ZIP—
CountyBureau County

Violations & enforcement

BeganViolationContaminant or ruleHealth-basedStatus
2024-10-17Required treatment not metLSL Inventory · code 2ELead and Copper Rule Revisionscode 5200YesResolved
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Endothallcode 2033NoResolved
2020-01-01Monitoring and reportingMonitoring, Regular · code 03Diquatcode 2032NoResolved
2008-07-01Required treatment not metWQP Entry Point/Tap Treatment Technique Non-Compliance · code 59Lead and Copper Rulecode 5000YesResolved
2003-07-01Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71Consumer Confidence Rulecode 7000NoResolved
2000-07-01Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25Total coliform bacteria (TCR)code 3100NoArchived
2000-04-01Monitoring and reportingWater Quality Parameter M/R · code 53Lead and Copper Rulecode 5000NoResolved
2000-01-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2000-01-01Monitoring and reportingWater Quality Parameter M/R · code 53Lead and Copper Rulecode 5000NoResolved
1999-10-01Monitoring and reportingWater Quality Parameter M/R · code 53Lead and Copper Rulecode 5000NoResolved
1999-07-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
1999-07-01Monitoring and reportingWater Quality Parameter M/R · code 53Lead and Copper Rulecode 5000NoResolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Tiskilwa: frequently asked questions

Is Tiskilwa's water safe to drink?

Tiskilwa is an active community water system regulated under the Safe Drinking Water Act, overseen by the IL state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.

Who runs Tiskilwa?

Tiskilwa (PWSID IL0111050) is a local government-owned community water system, regulated by the IL state drinking water program.

How many people does Tiskilwa serve?

Tiskilwa reports serving 740 people through 360 service connections in Bureau County, Illinois.

Where does Tiskilwa get its water?

EPA SDWIS lists this system's primary water source as groundwater.

Other water systems in Bureau County

Water systemCountyPopulation servedTypeSource
PrincetonBureau7,832CommunityGroundwater
Spring ValleyBureau5,582CommunityGroundwater
De PueBureau1,838CommunityGroundwater
WalnutBureau1,311CommunityGroundwater
LaddBureau1,263CommunityGroundwater
The Great Sauk Trail - EastBureau900Transient non-communityGroundwater

Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.