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: IL0790010 Type: Community water system EPA Region: 05
Primary Service Area: Residential Area
Primary Source: Surface water
Population Served: 21,043
Contact Information SWINGLER, DEAN SWINGLER, DEAN EJ WATER COOPERATIVE 108 SOUTH MAIN STREET, P.O. BOX 8 DIETERICH, IL 62424
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).
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).
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
IL46881
lead
2015-01-01
2017-12-31
0.0074mg/L
IL47540
lead
2017-07-01
2017-12-31
0.002mg/L
IL46278
lead
2017-01-01
2017-06-30
0.0037mg/L
IL46095
lead
2016-07-01
2016-12-31
0.0025mg/L
IL42442
lead
2014-01-01
2014-12-31
0.0026mg/L
IL40998
lead
2013-01-01
2013-12-31
0.0025mg/L
IL38683
lead
2012-01-01
2012-06-30
0.0046mg/L
IL37959
lead
2011-07-01
2011-12-31
0.0072mg/L
IL34600
lead
2009-01-01
2011-12-31
0.0073mg/L
IL33087
lead
2008-01-01
2008-06-30
0.004mg/L
Violations
Known violations of the Safe Drinking Water Act as recorded by the EPA.
Compliance Dates
Rule
Violation Type
Contaminant Name
Status
2015-12-01 - 2015-12-31
Total Coliform Rule
Maximum Contaminant Level Violation, Monthly (TCR)
Coliform (TCR)
Returned to Compliance
1998-07-01 - 1998-07-31
Total Coliform Rule
Maximum Contaminant Level Violation, Monthly (TCR)
Coliform (TCR)
Known
1998-07-01 - 1998-07-31
Total Coliform Rule
Monitoring, Repeat Minor (TCR)
Coliform (TCR)
Known
2006-08-24 - 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.
