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: MO6010707
Type: Community water system
EPA Region: 07
Primary Service Area: Municipality
Primary Source: Surface water purchased
Population Served: 67,453
Contact Information
MEIVES, KELLY
MEIVES, KELLY
200 NORTH 2ND ST
ST CHARLES, MO 63301-0000

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   (1) 2015   (0)
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 2014-09-23 20 210 348
2014 2014-08-26 20 210 222
2014 2014-07-21 20 210 238
2014 2014-07-21 20 210 524
2014 2014-06-24 20 210 218
2014 2014-06-24 20 210 169
2013 2013-10-21 20 210 < 20
2013 2013-07-18 20 210 < 20
2013 2013-04-29 20 210 < 20
2013 2013-03-27 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
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.09 0 < 0.09
2013 2013-09-10 0.09 0 < 0.09
2013 2013-09-10 0.09 0 < 0.09
2013 2013-04-30 0.09 0 < 0.09
2013 2013-01-24 0.09 0 < 0.09
2013 2013-01-24 0.09 0 < 0.09
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.07 0.35 < 0.07
2013 2013-09-10 0.07 0.35 < 0.07
2013 2013-07-15 0.07 0.35 < 0.07
2013 2013-04-30 0.07 0.35 < 0.07
2013 2013-03-20 0.07 0.35 < 0.07
2013 2013-03-20 0.07 0.35 < 0.07
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.03 0 < 0.03
2013 2013-09-10 0.03 0 < 0.03
2013 2013-09-10 0.03 0 < 0.03
2013 2013-04-30 0.03 0 < 0.03
2013 2013-01-24 0.03 0 < 0.03
2013 2013-01-24 0.03 0 < 0.03
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.02 0 < 0.02
2013 2013-09-10 0.02 0 < 0.02
2013 2013-09-10 0.02 0 < 0.02
2013 2013-04-30 0.02 0 < 0.02
2013 2013-01-24 0.02 0 < 0.02
2013 2013-01-24 0.02 0 < 0.02
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.04 0.07 < 0.04
2013 2013-09-10 0.04 0.07 < 0.04
2013 2013-09-10 0.04 0.07 < 0.04
2013 2013-04-30 0.04 0.07 < 0.04
2013 2013-01-24 0.04 0.07 < 0.04
2013 2013-01-24 0.04 0.07 < 0.04
chromium 0.2 100 1.3 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.2 100 1.44
2013 2013-10-21 0.2 100 1.39
2013 2013-07-18 0.2 100 1.73
2013 2013-07-18 0.2 100 1.25
2013 2013-07-18 0.2 100 1.46
2013 2013-04-29 0.2 100 1.28
2013 2013-04-29 0.2 100 0.94
2013 2013-03-27 0.2 100 1
2013 2013-03-27 0.2 100 1.18
2013 2013-03-27 0.2 100 1.33
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.01 0 < 0.01
2013 2013-09-10 0.01 0 < 0.01
2013 2013-09-10 0.01 0 < 0.01
2013 2013-04-30 0.01 0 < 0.01
2013 2013-01-24 0.01 0 < 0.01
2013 2013-01-24 0.01 0 < 0.01
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.02 0.07 < 0.02
2013 2013-09-10 0.02 0.07 < 0.02
2013 2013-09-10 0.02 0.07 < 0.02
2013 2013-04-30 0.02 0.07 < 0.02
2013 2013-01-24 0.02 0.07 < 0.02
2013 2013-01-24 0.02 0.07 < 0.02
chromium-6 0.03 0 1.203 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.03 0 1.4
2013 2013-10-21 0.03 0 1.4
2013 2013-07-15 0.03 0 1.3
2013 2013-07-15 0.03 0 1.1
2013 2013-07-15 0.03 0 1.1
2013 2013-04-30 0.03 0 1.1
2013 2013-04-30 0.03 0 0.73
2013 2013-01-24 0.03 0 1.4
2013 2013-01-24 0.03 0 1.2
2013 2013-01-24 0.03 0 1.3
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.2 2.69 < 0.2
2013 2013-07-15 0.2 2.69 < 0.2
2013 2013-07-15 0.2 2.69 < 0.2
2013 2013-04-30 0.2 2.69 < 0.2
2013 2013-01-24 0.2 2.69 < 0.2
2013 2013-01-24 0.2 2.69 < 0.2
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.08 0 < 0.08
2013 2013-07-15 0.08 0 < 0.08
2013 2013-07-15 0.08 0 < 0.08
2013 2013-04-30 0.08 0 < 0.08
2013 2013-01-24 0.08 0 < 0.08
2013 2013-01-24 0.08 0 < 0.08
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.03 6.14 < 0.03
2013 2013-07-15 0.03 6.14 < 0.03
2013 2013-07-15 0.03 6.14 < 0.03
2013 2013-04-30 0.03 6.14 < 0.03
2013 2013-01-24 0.03 6.14 < 0.03
2013 2013-01-24 0.03 6.14 < 0.03
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.1 0.0103 < 0.1
2013 2013-07-15 0.1 0.0103 < 0.1
2013 2013-07-15 0.1 0.0103 < 0.1
2013 2013-04-30 0.1 0.0103 < 0.1
2013 2013-01-24 0.1 0.0103 < 0.1
2013 2013-01-24 0.1 0.0103 < 0.1
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.06 90 < 0.06
2013 2013-07-15 0.06 90 < 0.06
2013 2013-07-15 0.06 90 < 0.06
2013 2013-04-30 0.06 90 < 0.06
2013 2013-01-24 0.06 90 < 0.06
2013 2013-01-24 0.06 90 < 0.06
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.2 140 < 0.2
2013 2013-07-15 0.2 140 < 0.2
2013 2013-07-15 0.2 140 < 0.2
2013 2013-04-30 0.2 140 < 0.2
2013 2013-01-24 0.2 140 < 0.2
2013 2013-01-24 0.2 140 < 0.2
vanadium 0.2 21 1.467 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.2 21 0.92
2013 2013-10-21 0.2 21 3.87
2013 2013-07-18 0.2 21 4.55
2013 2013-07-18 0.2 21 0.66
2013 2013-07-18 0.2 21 0.7
2013 2013-04-29 0.2 21 0.53
2013 2013-04-29 0.2 21 1.12
2013 2013-03-27 0.2 21 0.69
2013 2013-03-27 0.2 21 0.9
2013 2013-03-27 0.2 21 0.73
molybdenum 1 40 1.256 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 1 40 1.16
2013 2013-10-21 1 40 4.41
2013 2013-07-18 1 40 3.59
2013 2013-07-18 1 40 < 1
2013 2013-07-18 1 40 < 1
2013 2013-04-29 1 40 1.05
2013 2013-04-29 1 40 1.08
2013 2013-03-27 1 40 1.27
2013 2013-03-27 1 40 < 1
2013 2013-03-27 1 40 < 1
strontium 0.3 1500 166.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.3 1500 188
2013 2013-10-21 0.3 1500 247
2013 2013-07-18 0.3 1500 190
2013 2013-07-18 0.3 1500 138
2013 2013-07-18 0.3 1500 150
2013 2013-04-29 0.3 1500 127
2013 2013-04-29 0.3 1500 154
2013 2013-03-27 0.3 1500 132
2013 2013-03-27 0.3 1500 163
2013 2013-03-27 0.3 1500 172
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 1 70 < 1
2013 2013-10-21 1 70 < 1
2013 2013-07-18 1 70 < 1
2013 2013-07-18 1 70 < 1
2013 2013-07-18 1 70 < 1
2013 2013-04-29 1 70 < 1
2013 2013-04-29 1 70 < 1
2013 2013-03-27 1 70 < 1
2013 2013-03-27 1 70 < 1
2013 2013-03-27 1 70 < 1
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2013 2013-10-21 0.03 0.0004 < 0.03
2013 2013-07-15 0.03 0.0004 < 0.03
2013 2013-07-15 0.03 0.0004 < 0.03
2013 2013-04-30 0.03 0.0004 < 0.03
2013 2013-01-24 0.03 0.0004 < 0.03
2013 2013-01-24 0.03 0.0004 < 0.03

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
MO39046 lead 2013-01-01 2015-12-31 0mg/L
MO34399 lead 2010-01-01 2012-12-31 0mg/L
MO29163 lead 2008-01-01 2010-12-31 0.00151mg/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 - N/A Consumer Confidence Rule Consumer Confidence Report Inadequate Reporting Consumer Confidence Rule Returned to Compliance
2003-07-01 - N/A Consumer Confidence Rule Consumer Confidence Report Complete Failure to Report Consumer Confidence Rule Returned to Compliance
2012-07-01 - 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.