Public Water System: West Chicago

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: IL0430900
Type: Community water system
EPA Region: 05
Primary Service Area: Municipality
Primary Source: Ground water
Population Served: 27,273
Contact Information
FLATTER, ROBERT E.
FLATTER, ROBERT E.
475 MAIN STREET
WEST CHICAGO, IL 60185

This public water system services 1 zip code in 1 municipality in 1 county.

Summary Results


A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).

Maximum Contaminant Levels Exceeded (by year):

2013   (1) 2014   (1) 2015   (0)
chlorate chlorate

Contaminant Detailed Results


This a view of violations of maximum contaminant levels. In the expanded view you can see each know test date for a given contaminant, the result of the test, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

chlorate
Is this in your home's pipes?

Year Test Date MRL HRL Test Result
2014 2014-05-14 20 210 220
2014 2014-05-14 20 210 270
2013 2013-11-13 20 210 310
2013 2013-11-13 20 210 210

Other Water Contaminants Tested


The following contaminants were tested and within national EPA guidelines.

The last mile of pipe makes a big difference, learn more about testing your water.

Contaminant MRL HRL Avg Result
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.03 0 < 0.03
2013 2013-11-13 0.03 0 < 0.03
molybdenum 1 40 3.625 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 1 40 2.8
2014 2014-05-14 1 40 3.6
2013 2013-11-13 1 40 3.1
2013 2013-11-13 1 40 5
chromium-6 0.03 0 2.44 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.03 0 2.49
2014 2014-05-14 0.03 0 1.89
2013 2013-11-13 0.03 0 2.71
2013 2013-11-13 0.03 0 2.67
chromium 0.2 100 2.925 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.2 100 2.7
2014 2014-05-14 0.2 100 2.1
2013 2013-11-13 0.2 100 3.5
2013 2013-11-13 0.2 100 3.4
vanadium 0.2 21 0.45 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.2 21 0.6
2014 2014-05-14 0.2 21 0.5
2013 2013-11-13 0.2 21 0.3
2013 2013-11-13 0.2 21 0.4
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.03 0.0004 < 0.03
2013 2013-11-13 0.03 0.0004 < 0.03
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.2 2.69 < 0.2
2013 2013-11-13 0.2 2.69 < 0.2
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.06 90 < 0.06
2013 2013-11-13 0.06 90 < 0.06
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.1 0.0103 < 0.1
2013 2013-11-13 0.1 0.0103 < 0.1
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.04 0.07 < 0.04
2013 2013-11-13 0.04 0.07 < 0.04
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.07 0.35 < 0.07
2013 2013-12-11 0.07 0.35 < 0.07
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 1 70 < 1
2014 2014-05-14 1 70 < 1
2013 2013-11-13 1 70 < 1
2013 2013-11-13 1 70 < 1
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.03 6.14 < 0.03
2013 2013-11-13 0.03 6.14 < 0.03
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.02 0.07 < 0.02
2013 2013-11-13 0.02 0.07 < 0.02
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.02 0 < 0.02
2013 2013-11-13 0.02 0 < 0.02
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.01 0 < 0.01
2013 2013-11-13 0.01 0 < 0.01
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.09 0 < 0.09
2013 2013-11-13 0.09 0 < 0.09
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.08 0 < 0.08
2013 2013-11-13 0.08 0 < 0.08
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-05-14 0.2 140 < 0.2
2013 2013-11-13 0.2 140 < 0.2
strontium 0.3 1500 92.9 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-06-16 0.3 1500 82.9
2014 2014-05-14 0.3 1500 93.9
2013 2013-11-13 0.3 1500 99.6
2013 2013-11-13 0.3 1500 95.2

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. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
IL43682 lead 2013-01-01 2015-12-31 0mg/L
IL38976 lead 2010-01-01 2012-12-31 0.00556mg/L
IL34948 lead 2009-01-01 2011-12-31 0.00657mg/L
IL33684 lead 2008-01-01 2008-12-31 0.00643mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2005-10-01 - 2005-12-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2005-10-01 - 2005-12-31 Radionuclides Maximum Contaminant Level Violation, Average Gross Alpha, Excl. Radon and U Returned to Compliance
2005-07-01 - 2005-09-30 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2005-07-01 - 2005-09-30 Radionuclides Maximum Contaminant Level Violation, Average Gross Alpha, Excl. Radon and U Returned to Compliance
2005-04-01 - 2005-06-30 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2005-04-01 - 2005-06-30 Radionuclides Maximum Contaminant Level Violation, Average Gross Alpha, Excl. Radon and U Returned to Compliance
2005-01-01 - 2005-03-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2005-01-01 - 2005-03-31 Radionuclides Maximum Contaminant Level Violation, Average Gross Alpha, Excl. Radon and U Returned to Compliance
2004-10-01 - 2004-12-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2004-07-01 - 2004-09-30 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2004-04-01 - 2004-06-30 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2004-01-01 - 2004-03-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2003-10-01 - 2003-12-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2003-07-01 - 2003-09-30 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2003-04-01 - 2003-06-30 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2003-01-01 - 2003-03-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
2002-10-01 - 2002-12-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
1998-10-01 - 2002-09-30 Radionuclides Maximum Contaminant Level Violation, Average Gross Alpha, Excl. Radon and U Returned to Compliance
1999-01-01 - 2002-09-30 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
1995-02-01 - 1998-12-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
1995-01-01 - 1998-12-31 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
1995-08-01 - 1995-08-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
1991-01-18 - 1995-01-17 Radionuclides Maximum Contaminant Level Violation, Average Combined Radium (-226 and -228) Returned to Compliance
1977-06-30 - 1981-06-29 Radionuclides Monitoring, Regular Gross Alpha, Excl. Radon and U Known
2005-04-08 - N/A Public Notice Rule Public Notification Violation for NPDWR Violation Public Notice Returned to Compliance
2005-04-08 - N/A Public Notice Rule Public Notification Violation without NPDWR Violation Public Notice Returned to Compliance

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.