Public Water System: Downers Grove

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: IL0430300
Type: Community water system
EPA Region: 05
Primary Service Area: Municipality
Primary Source: Surface water purchased
Population Served: 47,833
Contact Information
NEWLON, NANEIL
NEWLON, NANEIL
VILLAGE OF DOWNERS GROVE
5101 WALNUT AVENUE
DOWNERS GROVE, IL 60515

This public water system services 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   (0) 2015   (0) 2016   (0) 2017   (0) 2018   (2)
germanium
manganese

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).

germanium

Year Test Date MRL HRL Test Result
2018 2018-05-16 0.3 0.00 < 0.3
2018 2018-05-16 0.3 0.00 < 0.3
2018 2018-05-16 0.3 0.00 < 0.3
2018 2018-05-16 0.3 0.00 < 0.3

manganese

Year Test Date MRL HRL Test Result
2018 2018-05-16 0.4 0.00 < 0.4
2018 2018-05-16 0.4 0.00 < 0.4
2018 2018-05-16 0.4 0.00 < 0.4
2018 2018-05-16 0.4 0.00 < 0.4

Other Water Contaminants Tested


The following contaminants were tested and within national EPA guidelines.

Contaminant MRL HRL Avg Result
chlorate 20 210 < 20 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 20 210 < 20
2015 2015-07-14 20 210 < 20
2015 2015-04-14 20 210 < 20
2015 2015-04-14 20 210 < 20
2015 2015-01-14 20 210 < 20
2015 2015-01-14 20 210 < 20
2014 2014-10-14 20 210 < 20
2014 2014-10-14 20 210 < 20
chromium 0.2 100 0.45 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.2 100 0.4
2015 2015-07-14 0.2 100 0.3
2015 2015-04-14 0.2 100 0.3
2015 2015-04-14 0.2 100 0.3
2015 2015-01-14 0.2 100 1
2015 2015-01-14 0.2 100 0.4
2014 2014-10-14 0.2 100 0.5
2014 2014-10-14 0.2 100 0.4
chromium-6 0.03 0 0.1788 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.03 0 0.18
2015 2015-07-14 0.03 0 0.14
2015 2015-04-14 0.03 0 0.22
2015 2015-04-14 0.03 0 0.22
2015 2015-01-14 0.03 0 0.18
2015 2015-01-14 0.03 0 0.18
2014 2014-10-14 0.03 0 0.15
2014 2014-10-14 0.03 0 0.16
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 1 70 < 1
2015 2015-07-14 1 70 < 1
2015 2015-04-14 1 70 < 1
2015 2015-04-14 1 70 < 1
2015 2015-01-14 1 70 < 1
2015 2015-01-14 1 70 < 1
2014 2014-10-14 1 70 < 1
2014 2014-10-14 1 70 < 1
molybdenum 1 40 0.825 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 1 40 < 1
2015 2015-07-14 1 40 < 1
2015 2015-04-14 1 40 1.1
2015 2015-04-14 1 40 1.1
2015 2015-01-14 1 40 1.1
2015 2015-01-14 1 40 1.1
2014 2014-10-14 1 40 1.2
2014 2014-10-14 1 40 1
strontium 0.3 1500 117.15 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.3 1500 114.8
2015 2015-07-14 0.3 1500 113.8
2015 2015-04-14 0.3 1500 130.7
2015 2015-04-14 0.3 1500 127
2015 2015-01-14 0.3 1500 120.6
2015 2015-01-14 0.3 1500 120.9
2014 2014-10-14 0.3 1500 102.2
2014 2014-10-14 0.3 1500 107.2
vanadium 0.2 21 0.2875 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.2 21 0.3
2015 2015-07-14 0.2 21 0.3
2015 2015-04-14 0.2 21 0.2
2015 2015-04-14 0.2 21 0.2
2015 2015-01-14 0.2 21 0.3
2015 2015-01-14 0.2 21 0.3
2014 2014-10-14 0.2 21 0.3
2014 2014-10-14 0.2 21 0.4
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.03 6.14 < 0.03
2015 2015-04-14 0.03 6.14 < 0.03
2015 2015-01-14 0.03 6.14 < 0.03
2014 2014-10-14 0.03 6.14 < 0.03
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.03 0.0004 < 0.03
2015 2015-04-14 0.03 0.0004 < 0.03
2015 2015-01-14 0.03 0.0004 < 0.03
2014 2014-10-14 0.03 0.0004 < 0.03
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.1 0.0103 < 0.1
2015 2015-04-14 0.1 0.0103 < 0.1
2015 2015-01-14 0.1 0.0103 < 0.1
2014 2014-10-14 0.1 0.0103 < 0.1
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-11 0.07 0.35 < 0.07
2015 2015-04-14 0.07 0.35 < 0.07
2015 2015-01-14 0.07 0.35 < 0.07
2014 2014-10-14 0.07 0.35 < 0.07
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.2 140 < 0.2
2015 2015-04-14 0.2 140 < 0.2
2015 2015-01-14 0.2 140 < 0.2
2014 2014-10-14 0.2 140 < 0.2
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.2 2.69 < 0.2
2015 2015-04-14 0.2 2.69 < 0.2
2015 2015-01-14 0.2 2.69 < 0.2
2014 2014-10-14 0.2 2.69 < 0.2
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.06 90 < 0.06
2015 2015-04-14 0.06 90 < 0.06
2015 2015-01-14 0.06 90 < 0.06
2014 2014-10-14 0.06 90 < 0.06
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.08 0 < 0.08
2015 2015-04-14 0.08 0 < 0.08
2015 2015-01-14 0.08 0 < 0.08
2014 2014-10-14 0.08 0 < 0.08
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.09 0 < 0.09
2015 2015-04-14 0.09 0 < 0.09
2015 2015-01-14 0.09 0 < 0.09
2014 2014-10-14 0.09 0 < 0.09
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.01 0 < 0.01
2015 2015-04-14 0.01 0 < 0.01
2015 2015-01-14 0.01 0 < 0.01
2014 2014-10-14 0.01 0 < 0.01
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.03 0 < 0.03
2015 2015-04-14 0.03 0 < 0.03
2015 2015-01-14 0.03 0 < 0.03
2014 2014-10-14 0.03 0 < 0.03
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.02 0 < 0.02
2015 2015-04-14 0.02 0 < 0.02
2015 2015-01-14 0.02 0 < 0.02
2014 2014-10-14 0.02 0 < 0.02
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.02 0.07 < 0.02
2015 2015-04-14 0.02 0.07 < 0.02
2015 2015-01-14 0.02 0.07 < 0.02
2014 2014-10-14 0.02 0.07 < 0.02
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.04 0.07 < 0.04
2015 2015-04-14 0.04 0.07 < 0.04
2015 2015-01-14 0.04 0.07 < 0.04
2014 2014-10-14 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
IL46565 lead 2015-01-01 2017-12-31 0.00317mg/L
IL42881 lead 2012-01-01 2014-12-31 0mg/L
IL40162 lead 2011-01-01 2013-12-31 0mg/L
IL38435 lead 2009-01-01 2011-12-31 0mg/L
IL33858 lead 2008-01-01 2010-12-31 0mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2017-06-01 - 2017-06-30 Revised Total Coliform Rule Monitoring, Routine (RTCR) Revised Total Coliform Rule Returned to Compliance
2017-04-01 - 2017-06-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chlorine Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
2012-07-01 - N/A Consumer Confidence Rule Consumer Confidence Report Inadequate Reporting Consumer Confidence Rule Returned to Compliance
- N/A Radionuclides Monitoring, Regular Gross Alpha, Excl. Radon and U Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) Known
2013-07-01 - N/A Consumer Confidence Rule Consumer Confidence Report Inadequate Reporting Consumer Confidence Rule Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) Known

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.