Public Water System: Ann Arbor

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: MI0000220
Type: Community water system
EPA Region: 05
Primary Service Area: Residential Area
Primary Source: Surface water
Population Served: 118,017
Contact Information
HUPY, CRAIG
HUPY, CRAIG
301 E. Huron Street
P.O. Box 8647
ANN ARBOR, MI 48107-8647

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 2014-09-15 20 210 350
2014 2014-09-15 20 210 400
2014 2014-07-08 20 210 240
2014 2014-06-03 20 210 150
2014 2014-03-05 20 210 49
2014 2014-03-05 20 210 48
2013 2013-12-11 20 210 150
2013 2013-12-11 20 210 150

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
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.03 0.0004 < 0.03
2014 2014-06-03 0.03 0.0004 < 0.03
2014 2014-03-05 0.03 0.0004 < 0.03
2013 2013-12-11 0.03 0.0004 < 0.03
HCFC-22 0.08 0 0.0225 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.08 0 0.09
2014 2014-06-03 0.08 0 < 0.08
2014 2014-03-05 0.08 0 < 0.08
2013 2013-12-11 0.08 0 < 0.08
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.07 0.35 < 0.07
2014 2014-06-03 0.07 0.35 < 0.07
2014 2014-03-05 0.07 0.35 < 0.07
2013 2013-12-11 0.07 0.35 < 0.07
PFOS 0.04 0.07 0.0108 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.04 0.07 < 0.04
2014 2014-06-03 0.04 0.07 < 0.04
2014 2014-03-05 0.04 0.07 0.043
2013 2013-12-11 0.04 0.07 < 0.04
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.2 2.69 < 0.2
2014 2014-06-03 0.2 2.69 < 0.2
2014 2014-03-05 0.2 2.69 < 0.2
2013 2013-12-11 0.2 2.69 < 0.2
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.002 0.35 < 0.002
2014 2014-06-03 0.002 0.35 < 0.002
2014 2014-03-05 0.002 0.35 < 0.002
2013 2013-12-11 0.002 0.35 < 0.002
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.0001 0 < 0.0001
2014 2014-06-03 0.0001 0 < 0.0001
2014 2014-03-05 0.0001 0 < 0.0001
2013 2013-12-11 0.0001 0 < 0.0001
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.2 140 < 0.2
2014 2014-06-03 0.2 140 < 0.2
2014 2014-03-05 0.2 140 < 0.2
2013 2013-12-11 0.2 140 < 0.2
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.0003 0 < 0.0003
2014 2014-06-03 0.0003 0 < 0.0003
2014 2014-03-05 0.0003 0 < 0.0003
2013 2013-12-11 0.0003 0 < 0.0003
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.0008 0.35 < 0.0008
2014 2014-06-03 0.0008 0.35 < 0.0008
2014 2014-03-05 0.0008 0.35 < 0.0008
2013 2013-12-11 0.0008 0.35 < 0.0008
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.0009 0.035 < 0.0009
2014 2014-06-03 0.0009 0.035 < 0.0009
2014 2014-03-05 0.0009 0.035 < 0.0009
2013 2013-12-11 0.0009 0.035 < 0.0009
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.0004 0.0009 < 0.0004
2014 2014-06-03 0.0004 0.0009 < 0.0004
2014 2014-03-05 0.0004 0.0009 < 0.0004
2013 2013-12-11 0.0004 0.0009 < 0.0004
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.09 0 < 0.09
2014 2014-06-03 0.09 0 < 0.09
2014 2014-03-05 0.09 0 < 0.09
2013 2013-12-11 0.09 0 < 0.09
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.02 0.07 < 0.02
2014 2014-06-03 0.02 0.07 < 0.02
2014 2014-03-05 0.02 0.07 < 0.02
2013 2013-12-11 0.02 0.07 < 0.02
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.03 6.14 < 0.03
2014 2014-06-03 0.03 6.14 < 0.03
2014 2014-03-05 0.03 6.14 < 0.03
2013 2013-12-11 0.03 6.14 < 0.03
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.004 0.35 < 0.004
2014 2014-06-03 0.004 0.35 < 0.004
2014 2014-03-05 0.004 0.35 < 0.004
2013 2013-12-11 0.004 0.35 < 0.004
molybdenum 1 40 5.3875 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 1 40 6
2014 2014-09-15 1 40 5.9
2014 2014-07-14 1 40 5.1
2014 2014-07-08 1 40 5.6
2014 2014-03-05 1 40 4.9
2014 2014-03-05 1 40 4.9
2013 2013-12-11 1 40 5.3
2013 2013-12-11 1 40 5.4
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.1 0.0103 < 0.1
2014 2014-06-03 0.1 0.0103 < 0.1
2014 2014-03-05 0.1 0.0103 < 0.1
2013 2013-12-11 0.1 0.0103 < 0.1
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.02 0 < 0.02
2014 2014-06-03 0.02 0 < 0.02
2014 2014-03-05 0.02 0 < 0.02
2013 2013-12-11 0.02 0 < 0.02
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.01 0 < 0.01
2014 2014-06-03 0.01 0 < 0.01
2014 2014-03-05 0.01 0 < 0.01
2013 2013-12-11 0.01 0 < 0.01
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 1 70 < 1
2014 2014-09-15 1 70 < 1
2014 2014-07-14 1 70 < 1
2014 2014-07-08 1 70 < 1
2014 2014-03-05 1 70 < 1
2014 2014-03-05 1 70 < 1
2013 2013-12-11 1 70 < 1
2013 2013-12-11 1 70 < 1
chromium-6 0.03 0 0.2263 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.03 0 0.2
2014 2014-09-15 0.03 0 0.18
2014 2014-07-08 0.03 0 0.21
2014 2014-06-03 0.03 0 0.27
2014 2014-03-05 0.03 0 0.25
2014 2014-03-05 0.03 0 0.24
2013 2013-12-11 0.03 0 0.23
2013 2013-12-11 0.03 0 0.23
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.06 90 < 0.06
2014 2014-06-03 0.06 90 < 0.06
2014 2014-03-05 0.06 90 < 0.06
2013 2013-12-11 0.06 90 < 0.06
vanadium 0.2 21 0.4163 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.2 21 0.38
2014 2014-09-15 0.2 21 0.42
2014 2014-07-14 0.2 21 0.32
2014 2014-07-08 0.2 21 0.48
2014 2014-03-05 0.2 21 0.54
2014 2014-03-05 0.2 21 0.47
2013 2013-12-11 0.2 21 0.35
2013 2013-12-11 0.2 21 0.37
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.03 0 < 0.03
2014 2014-06-03 0.03 0 < 0.03
2014 2014-03-05 0.03 0 < 0.03
2013 2013-12-11 0.03 0 < 0.03
chromium 0.2 100 0.315 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.2 100 0.39
2014 2014-09-15 0.2 100 0.44
2014 2014-07-14 0.2 100 0.31
2014 2014-07-08 0.2 100 0.26
2014 2014-03-05 0.2 100 0.3
2014 2014-03-05 0.2 100 0.28
2013 2013-12-11 0.2 100 0.28
2013 2013-12-11 0.2 100 0.26
strontium 0.3 1500 140 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-09-15 0.3 1500 170
2014 2014-09-15 0.3 1500 170
2014 2014-07-14 0.3 1500 150
2014 2014-07-08 0.3 1500 150
2014 2014-03-05 0.3 1500 120
2014 2014-03-05 0.3 1500 120
2013 2013-12-11 0.3 1500 120
2013 2013-12-11 0.3 1500 120

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
MI224344 lead 2015-01-01 2017-12-31 0.003mg/L
MI170013 lead 2012-01-01 2014-12-31 0.002mg/L
MI115474 lead 2009-01-01 2011-12-31 0.004mg/L
MI67817 lead 2006-01-01 2008-12-31 0.008mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2016-11-01 - 2016-11-30 Long Term 2 Enhanced Surface Water Treatment Rule Monitoring, Source Water (LT2) Cryptosporidium Returned to Compliance
2011-01-01 - 2011-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2008-01-01 - 2008-09-30 Synthetic Organic Chemicals Monitoring, Regular Endothall Returned to Compliance
2008-01-01 - 2008-01-31 Long Term 1 Enhanced Surface Water Treatment Rule Single Turbidity Exceed (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2006-07-01 - 2006-07-31 Long Term 1 Enhanced Surface Water Treatment Rule Single Turbidity Exceed (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2006-06-01 - 2006-06-30 Long Term 1 Enhanced Surface Water Treatment Rule Single Turbidity Exceed (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2005-09-01 - 2005-09-30 Long Term 1 Enhanced Surface Water Treatment Rule Monitoring, Turbidity (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2004-07-01 - 2004-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Bromate Returned to Compliance
2003-09-01 - 2003-09-30 Long Term 1 Enhanced Surface Water Treatment Rule Monitoring, Turbidity (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2003-08-01 - 2003-08-31 Long Term 1 Enhanced Surface Water Treatment Rule Monitoring, Turbidity (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2003-04-01 - 2003-04-30 Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
2002-07-01 - 2002-07-31 Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) Returned to Compliance
2002-03-01 - 2002-03-31 Long Term 1 Enhanced Surface Water Treatment Rule Single Turbidity Exceed (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2002-02-01 - 2002-02-28 Long Term 1 Enhanced Surface Water Treatment Rule Single Turbidity Exceed (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
1999-09-01 - 1999-09-30 Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
1996-06-01 - 1996-06-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1996-05-01 - 1996-05-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1996-04-01 - 1996-04-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1995-09-01 - 1995-09-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1995-08-01 - 1995-08-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1995-07-01 - 1995-07-31 Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) Returned to Compliance
1995-07-01 - 1995-07-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1995-06-01 - 1995-06-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1995-05-01 - 1995-05-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1995-04-01 - 1995-04-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1995-03-01 - 1995-03-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1995-02-01 - 1995-02-28 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1995-01-01 - 1995-01-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1994-12-01 - 1994-12-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1994-11-01 - 1994-11-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1994-10-01 - 1994-10-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1994-09-01 - 1994-09-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1994-09-01 - 1994-09-30 Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) Known
1994-08-01 - 1994-08-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1994-07-01 - 1994-07-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1994-05-01 - 1994-05-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1994-04-01 - 1994-04-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1994-03-01 - 1994-03-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1994-02-01 - 1994-02-28 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1993-12-01 - 1993-12-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1993-11-01 - 1993-11-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1993-10-01 - 1993-10-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule 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.