Skip to content
AquaCensus

Public water system · IL0970450

Active

Lake County Pw- Hawthorn Woods

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

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

Population served

675

Service connections

225

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDIL0970450
System typeCommunity water system
Activity statusActive
Population served675
Service connections225
Primary water sourcePurchased groundwater
Owner typeLocal government
Primacy agencyIL state drinking water program
City servedHawthorn Woods
StateIllinois
ZIP—
CountyLake County

Violations & enforcement

BeganViolationContaminant or ruleHealth-basedStatus
2025-07-01Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72Consumer Confidence Rulecode 7000NoUnaddressed
2005-08-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesResolved
2002-07-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesArchived
2000-09-01Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22Total coliform bacteria (TCR)code 3100YesArchived
1995-07-01Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24Total coliform bacteria (TCR)code 3100NoArchived
1994-10-01Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51Lead and Copper Rulecode 5000NoResolved
1977-06-30Monitoring and reportingMonitoring, Regular · code 03Gross alpha (excluding radon and uranium)code 4000NoArchived

All 7 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.

Lake County Pw- Hawthorn Woods: frequently asked questions

Is Lake County Pw- Hawthorn Woods's water safe to drink?

Lake County Pw- Hawthorn Woods 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 Lake County Pw- Hawthorn Woods?

Lake County Pw- Hawthorn Woods (PWSID IL0970450) is a local government-owned community water system, regulated by the IL state drinking water program.

How many people does Lake County Pw- Hawthorn Woods serve?

Lake County Pw- Hawthorn Woods reports serving 675 people through 225 service connections in Lake County, Illinois.

Where does Lake County Pw- Hawthorn Woods get its water?

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

Other water systems in Lake County

Water systemCountyPopulation servedTypeSource
WaukeganLake87,149CommunitySurface water
Vernon Hills - Lake Co PwLake33,207CommunityPurchased surface water
MundeleinLake31,500CommunityPurchased surface water
GurneeLake30,193CommunityPurchased surface water
Highland ParkLake30,176CommunitySurface water
Round Lake BeachLake27,200CommunityPurchased surface water

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.