Grayslake Water System

MyTapWater.org's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: IL0970250
Type: Community water system
EPA Region: 05
Primary Service Area: Municipality
Primary Source: Surface water purchased
Population Served: 20,973
Contact Information
HEINZ, WILLIAM
HEINZ, WILLIAM
10 SOUTH SEYMOUR
GRAYSLAKE, IL 60030

This public water system services 1 municipality in 1 county.

Summary Results


A summary view of tests in which a water contaminant found to exceed the Maximum Contaminant Level (MCL) set by the EPA.

We couldn't find any records of contaminants exceeding the regulated limits in your water.

Other Water Contaminants Tested


The following contaminants were tested and found to be within national EPA guidelines.

We couldn't find any records of contaminants in your water.

Lead and Copper Data


Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply level. Lead and copper can be — and often are — deposited in drinking water in between the water facility and your tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
IL45742 lead 2014-01-01 2016-12-31 0.006mg/L
IL41795 lead 2011-01-01 2013-12-31 0.0078mg/L
IL39972 lead 2010-01-01 2012-12-31 0.0107mg/L
IL37176 lead 2008-01-01 2010-12-31 0.0107mg/L
IL32026 lead 2007-01-01 2009-12-31 0.0107mg/L

Violations


Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
2006-07-01 - 2006-12-31 Lead and Copper Rule Water Quality Parameter M/R Lead and Copper Rule Returned to Compliance
2000-07-01 - 2000-12-31 Lead and Copper Rule Water Quality Parameter M/R Lead and Copper Rule Returned to Compliance
2000-09-01 - 2000-09-30 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
- N/A Radionuclides Monitoring, Regular Gross Alpha, Excl. Radon and U Known
- N/A Lead and Copper Rule Water Quality Parameter M/R Lead and Copper Rule Returned to Compliance
- N/A Lead and Copper Rule OCCT/SOWT Study/Recommendation Lead and Copper Rule Returned to Compliance
- N/A Lead and Copper Rule Public Education Lead and Copper Rule Returned to Compliance

Local Water Testing


Find a lab in your area so you can get your tap or well water tested. This list contains both governmental and private labs, all of which are EPA-certified for drinking water testing.

Lab Location Zip Code
Wilmette Water Department Wilmette, IL 60091
Winnetka Water Department Winnetka, IL 60093
Environmental Monitoring and Technologies, Inc. Morton Grove, IL 60053

Water Bill Information


Convenient information about your water service.

Unable to identify any billing information about Grayslake (IL0970250).

What My Water Data Means


Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.

Sources


The origin of MyTapWater.org's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?


The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.