Public Water System: St Charles

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: IL0894830
Type: Community water system
EPA Region: 05
Primary Service Area: Municipality
Primary Source: Ground water
Population Served: 33,264
Contact Information
WILSON, TIMOTHY W.
WILSON, TIMOTHY W.
CITY OF ST. CHARLES
2 EAST MAIN STREET
ST. CHARLES, IL 60174

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   (0) 2014   (2) 2015   (0)
strontium
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).

strontium
Is this in your home's pipes?

Year Test Date MRL HRL Test Result
2014 2014-08-19 0.3 1500 244.8
2014 2014-08-19 0.3 1500 247.1
2014 2014-08-19 0.3 1500 501.3
2014 2014-08-19 0.3 1500 341.4
2014 2014-08-19 0.3 1500 2510.5
2014 2014-08-19 0.3 1500 284.9
2014 2014-08-18 0.3 1500 1811.4
2014 2014-04-14 0.3 1500 244.6
2014 2014-02-19 0.3 1500 440.7
2014 2014-02-11 0.3 1500 505.3
2014 2014-02-11 0.3 1500 234.3
2014 2014-02-11 0.3 1500 1785.5
2014 2014-02-11 0.3 1500 3317.8
2014 2014-02-11 0.3 1500 381.4

chlorate
Is this in your home's pipes?

Year Test Date MRL HRL Test Result
2014 2014-09-11 20 210 < 20
2014 2014-09-11 20 210 < 20
2014 2014-09-11 20 210 210
2014 2014-09-11 20 210 < 20
2014 2014-09-11 20 210 < 20
2014 2014-09-11 20 210 < 20
2014 2014-08-19 20 210 < 20
2014 2014-04-14 20 210 < 20
2014 2014-02-19 20 210 < 20
2014 2014-02-11 20 210 < 20
2014 2014-02-11 20 210 < 20
2014 2014-02-11 20 210 < 20
2014 2014-02-11 20 210 94
2014 2014-02-11 20 210 < 20

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 2014-09-11 0.03 0 < 0.03
2014 2014-09-11 0.03 0 < 0.03
2014 2014-09-11 0.03 0 < 0.03
2014 2014-09-11 0.03 0 < 0.03
2014 2014-09-11 0.03 0 < 0.03
2014 2014-08-19 0.03 0 < 0.03
2014 2014-04-14 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.03 0.0004 < 0.03
2014 2014-09-11 0.03 0.0004 < 0.03
2014 2014-09-11 0.03 0.0004 < 0.03
2014 2014-09-11 0.03 0.0004 < 0.03
2014 2014-09-11 0.03 0.0004 < 0.03
2014 2014-08-19 0.03 0.0004 < 0.03
2014 2014-04-14 0.03 0.0004 < 0.03
2014 2014-02-11 0.03 0.0004 < 0.03
2014 2014-02-11 0.03 0.0004 < 0.03
2014 2014-02-11 0.03 0.0004 < 0.03
2014 2014-02-11 0.03 0.0004 < 0.03
2014 2014-02-11 0.03 0.0004 < 0.03
chromium-6 0.03 0 0.0229 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.03 0 0.04
2014 2014-09-11 0.03 0 0.04
2014 2014-09-11 0.03 0 0.04
2014 2014-09-11 0.03 0 0.07
2014 2014-09-11 0.03 0 0.05
2014 2014-09-11 0.03 0 0.04
2014 2014-08-19 0.03 0 < 0.03
2014 2014-04-14 0.03 0 0.04
2014 2014-02-19 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
2014 2014-02-11 0.03 0 < 0.03
1,4-dioxane 0.07 0.35 0.0083 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.07 0.35 < 0.07
2014 2014-09-11 0.07 0.35 0.1
2014 2014-09-11 0.07 0.35 < 0.07
2014 2014-09-11 0.07 0.35 < 0.07
2014 2014-09-11 0.07 0.35 < 0.07
2014 2014-08-19 0.07 0.35 < 0.07
2014 2014-04-14 0.07 0.35 < 0.07
2014 2014-02-11 0.07 0.35 < 0.07
2014 2014-02-11 0.07 0.35 < 0.07
2014 2014-02-11 0.07 0.35 < 0.07
2014 2014-02-11 0.07 0.35 < 0.07
2014 2014-02-11 0.07 0.35 < 0.07
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.2 140 < 0.2
2014 2014-09-11 0.2 140 < 0.2
2014 2014-09-11 0.2 140 < 0.2
2014 2014-09-11 0.2 140 < 0.2
2014 2014-09-11 0.2 140 < 0.2
2014 2014-08-19 0.2 140 < 0.2
2014 2014-04-14 0.2 140 < 0.2
2014 2014-02-11 0.2 140 < 0.2
2014 2014-02-11 0.2 140 < 0.2
2014 2014-02-11 0.2 140 < 0.2
2014 2014-02-11 0.2 140 < 0.2
2014 2014-02-11 0.2 140 < 0.2
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.06 90 < 0.06
2014 2014-09-11 0.06 90 < 0.06
2014 2014-09-11 0.06 90 < 0.06
2014 2014-09-11 0.06 90 < 0.06
2014 2014-09-11 0.06 90 < 0.06
2014 2014-08-19 0.06 90 < 0.06
2014 2014-04-14 0.06 90 < 0.06
2014 2014-02-11 0.06 90 < 0.06
2014 2014-02-11 0.06 90 < 0.06
2014 2014-02-11 0.06 90 < 0.06
2014 2014-02-11 0.06 90 < 0.06
2014 2014-02-11 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 2014-09-11 0.1 0.0103 < 0.1
2014 2014-09-11 0.1 0.0103 < 0.1
2014 2014-09-11 0.1 0.0103 < 0.1
2014 2014-09-11 0.1 0.0103 < 0.1
2014 2014-09-11 0.1 0.0103 < 0.1
2014 2014-08-19 0.1 0.0103 < 0.1
2014 2014-04-14 0.1 0.0103 < 0.1
2014 2014-02-11 0.1 0.0103 < 0.1
2014 2014-02-11 0.1 0.0103 < 0.1
2014 2014-02-11 0.1 0.0103 < 0.1
2014 2014-02-11 0.1 0.0103 < 0.1
2014 2014-02-11 0.1 0.0103 < 0.1
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.08 0 < 0.08
2014 2014-09-11 0.08 0 < 0.08
2014 2014-09-11 0.08 0 < 0.08
2014 2014-09-11 0.08 0 < 0.08
2014 2014-09-11 0.08 0 < 0.08
2014 2014-08-19 0.08 0 < 0.08
2014 2014-04-14 0.08 0 < 0.08
2014 2014-02-11 0.08 0 < 0.08
2014 2014-02-11 0.08 0 < 0.08
2014 2014-02-11 0.08 0 < 0.08
2014 2014-02-11 0.08 0 < 0.08
2014 2014-02-11 0.08 0 < 0.08
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.02 0.07 < 0.02
2014 2014-09-11 0.02 0.07 < 0.02
2014 2014-09-11 0.02 0.07 < 0.02
2014 2014-09-11 0.02 0.07 < 0.02
2014 2014-09-11 0.02 0.07 < 0.02
2014 2014-08-19 0.02 0.07 < 0.02
2014 2014-04-14 0.02 0.07 < 0.02
2014 2014-02-11 0.02 0.07 < 0.02
2014 2014-02-11 0.02 0.07 < 0.02
2014 2014-02-11 0.02 0.07 < 0.02
2014 2014-02-11 0.02 0.07 < 0.02
2014 2014-02-11 0.02 0.07 < 0.02
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.01 0 < 0.01
2014 2014-09-11 0.01 0 < 0.01
2014 2014-09-11 0.01 0 < 0.01
2014 2014-09-11 0.01 0 < 0.01
2014 2014-09-11 0.01 0 < 0.01
2014 2014-08-19 0.01 0 < 0.01
2014 2014-04-14 0.01 0 < 0.01
2014 2014-02-11 0.01 0 < 0.01
2014 2014-02-11 0.01 0 < 0.01
2014 2014-02-11 0.01 0 < 0.01
2014 2014-02-11 0.01 0 < 0.01
2014 2014-02-11 0.01 0 < 0.01
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.03 6.14 < 0.03
2014 2014-09-11 0.03 6.14 < 0.03
2014 2014-09-11 0.03 6.14 < 0.03
2014 2014-09-11 0.03 6.14 < 0.03
2014 2014-09-11 0.03 6.14 < 0.03
2014 2014-08-19 0.03 6.14 < 0.03
2014 2014-04-14 0.03 6.14 < 0.03
2014 2014-02-11 0.03 6.14 < 0.03
2014 2014-02-11 0.03 6.14 < 0.03
2014 2014-02-11 0.03 6.14 < 0.03
2014 2014-02-11 0.03 6.14 < 0.03
2014 2014-02-11 0.03 6.14 < 0.03
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.02 0 < 0.02
2014 2014-09-11 0.02 0 < 0.02
2014 2014-09-11 0.02 0 < 0.02
2014 2014-09-11 0.02 0 < 0.02
2014 2014-09-11 0.02 0 < 0.02
2014 2014-08-19 0.02 0 < 0.02
2014 2014-04-14 0.02 0 < 0.02
2014 2014-02-11 0.02 0 < 0.02
2014 2014-02-11 0.02 0 < 0.02
2014 2014-02-11 0.02 0 < 0.02
2014 2014-02-11 0.02 0 < 0.02
2014 2014-02-11 0.02 0 < 0.02
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.09 0 < 0.09
2014 2014-09-11 0.09 0 < 0.09
2014 2014-09-11 0.09 0 < 0.09
2014 2014-09-11 0.09 0 < 0.09
2014 2014-09-11 0.09 0 < 0.09
2014 2014-08-19 0.09 0 < 0.09
2014 2014-04-14 0.09 0 < 0.09
2014 2014-02-11 0.09 0 < 0.09
2014 2014-02-11 0.09 0 < 0.09
2014 2014-02-11 0.09 0 < 0.09
2014 2014-02-11 0.09 0 < 0.09
2014 2014-02-11 0.09 0 < 0.09
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.2 2.69 < 0.2
2014 2014-09-11 0.2 2.69 < 0.2
2014 2014-09-11 0.2 2.69 < 0.2
2014 2014-09-11 0.2 2.69 < 0.2
2014 2014-09-11 0.2 2.69 < 0.2
2014 2014-08-19 0.2 2.69 < 0.2
2014 2014-04-14 0.2 2.69 < 0.2
2014 2014-02-11 0.2 2.69 < 0.2
2014 2014-02-11 0.2 2.69 < 0.2
2014 2014-02-11 0.2 2.69 < 0.2
2014 2014-02-11 0.2 2.69 < 0.2
2014 2014-02-11 0.2 2.69 < 0.2
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 1 70 < 1
2014 2014-08-19 1 70 < 1
2014 2014-08-19 1 70 < 1
2014 2014-08-19 1 70 < 1
2014 2014-08-19 1 70 < 1
2014 2014-08-19 1 70 < 1
2014 2014-08-18 1 70 < 1
2014 2014-04-14 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-11 1 70 < 1
2014 2014-02-11 1 70 < 1
2014 2014-02-11 1 70 < 1
2014 2014-02-11 1 70 < 1
2014 2014-02-11 1 70 < 1
chromium 0.2 100 0.8571 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.2 100 7.5
2014 2014-08-19 0.2 100 0.3
2014 2014-08-19 0.2 100 < 0.2
2014 2014-08-19 0.2 100 1.8
2014 2014-08-19 0.2 100 0.5
2014 2014-08-19 0.2 100 0.4
2014 2014-08-18 0.2 100 0.2
2014 2014-04-14 0.2 100 0.3
2014 2014-02-19 0.2 100 < 0.2
2014 2014-02-11 0.2 100 < 0.2
2014 2014-02-11 0.2 100 0.2
2014 2014-02-11 0.2 100 0.5
2014 2014-02-11 0.2 100 0.3
2014 2014-02-11 0.2 100 < 0.2
molybdenum 1 40 0.7143 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 1 40 < 1
2014 2014-08-19 1 40 2.6
2014 2014-08-19 1 40 < 1
2014 2014-08-19 1 40 < 1
2014 2014-08-19 1 40 < 1
2014 2014-08-19 1 40 2.3
2014 2014-08-18 1 40 < 1
2014 2014-04-14 1 40 < 1
2014 2014-02-19 1 40 < 1
2014 2014-02-11 1 40 < 1
2014 2014-02-11 1 40 2.6
2014 2014-02-11 1 40 2.5
2014 2014-02-11 1 40 < 1
2014 2014-02-11 1 40 < 1
vanadium 0.2 21 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.2 21 < 0.2
2014 2014-08-19 0.2 21 < 0.2
2014 2014-08-19 0.2 21 < 0.2
2014 2014-08-19 0.2 21 < 0.2
2014 2014-08-19 0.2 21 < 0.2
2014 2014-08-19 0.2 21 < 0.2
2014 2014-08-18 0.2 21 < 0.2
2014 2014-04-14 0.2 21 < 0.2
2014 2014-02-19 0.2 21 < 0.2
2014 2014-02-11 0.2 21 < 0.2
2014 2014-02-11 0.2 21 < 0.2
2014 2014-02-11 0.2 21 < 0.2
2014 2014-02-11 0.2 21 < 0.2
2014 2014-02-11 0.2 21 < 0.2
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-11 0.04 0.07 < 0.04
2014 2014-09-11 0.04 0.07 < 0.04
2014 2014-09-11 0.04 0.07 < 0.04
2014 2014-09-11 0.04 0.07 < 0.04
2014 2014-09-11 0.04 0.07 < 0.04
2014 2014-08-19 0.04 0.07 < 0.04
2014 2014-04-14 0.04 0.07 < 0.04
2014 2014-02-11 0.04 0.07 < 0.04
2014 2014-02-11 0.04 0.07 < 0.04
2014 2014-02-11 0.04 0.07 < 0.04
2014 2014-02-11 0.04 0.07 < 0.04
2014 2014-02-11 0.04 0.07 < 0.04

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
IL47239 lead 2015-01-01 2017-12-31 0.0055mg/L
IL43266 lead 2012-01-01 2014-12-31 0.00571mg/L
IL40279 lead 2011-01-01 2013-12-31 0.00599mg/L
IL37642 lead 2009-01-01 2011-12-31 0.00599mg/L
IL33463 lead 2008-01-01 2010-12-31 0.00987mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2002-01-01 - 2002-12-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
1995-07-01 - 1995-07-31 Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) Known
1995-07-01 - 1995-07-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
1991-01-30 - 1995-01-29 Radionuclides Maximum Contaminant Level Violation, Average Gross Alpha, Excl. Radon and U Returned to Compliance
1991-01-30 - 1995-01-29 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
2016-07-01 - N/A Consumer Confidence Rule Consumer Confidence Report Inadequate Reporting Consumer Confidence Rule 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.