Public Water System: Danbury Water Department

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: CT0340011
Type: Community water system
EPA Region: 01
Primary Source: Surface water
Population Served: 62,055
Contact Information
DAY, DAVID M.
DAY, DAVID M.
155 DEER HILL AVENUE
DANBURY, CT 06810

This public water system services 1 zip code in 4 municipalities 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   (1)
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
2015 2015-08-26 20 210 520

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
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.04 0.07 < 0.04
2015 2015-08-26 0.04 0.07 < 0.04
2015 2015-05-21 0.04 0.07 < 0.04
2015 2015-05-21 0.04 0.07 < 0.04
2015 2015-02-11 0.04 0.07 < 0.04
2015 2015-02-11 0.04 0.07 < 0.04
2014 2014-11-19 0.04 0.07 < 0.04
2014 2014-11-19 0.04 0.07 < 0.04
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 1 70 < 1
2015 2015-08-26 1 70 < 1
2015 2015-08-26 1 70 < 1
2015 2015-08-26 1 70 < 1
2015 2015-05-21 1 70 < 1
2015 2015-05-21 1 70 < 1
2015 2015-05-21 1 70 < 1
2015 2015-05-21 1 70 < 1
2015 2015-02-11 1 70 < 1
2015 2015-02-11 1 70 < 1
2015 2015-02-11 1 70 < 1
2015 2015-02-11 1 70 < 1
2014 2014-11-19 1 70 < 1
2014 2014-11-19 1 70 < 1
2014 2014-11-19 1 70 < 1
2014 2014-11-19 1 70 < 1
chromium 0.2 100 0.0467 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.2 100 < 0.2
2015 2015-08-26 0.2 100 < 0.2
2015 2015-08-26 0.2 100 0.32
2015 2015-08-26 0.2 100 0.24
2015 2015-02-11 0.2 100 < 0.2
2015 2015-02-11 0.2 100 < 0.2
2015 2015-02-11 0.2 100 < 0.2
2015 2015-02-11 0.2 100 < 0.2
2014 2014-11-19 0.2 100 < 0.2
2014 2014-11-19 0.2 100 < 0.2
2014 2014-11-19 0.2 100 < 0.2
2014 2014-11-19 0.2 100 < 0.2
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.02 0.07 < 0.02
2015 2015-08-26 0.02 0.07 < 0.02
2015 2015-05-21 0.02 0.07 < 0.02
2015 2015-05-21 0.02 0.07 < 0.02
2015 2015-02-11 0.02 0.07 < 0.02
2015 2015-02-11 0.02 0.07 < 0.02
2014 2014-11-19 0.02 0.07 < 0.02
2014 2014-11-19 0.02 0.07 < 0.02
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.09 0 < 0.09
2015 2015-08-26 0.09 0 < 0.09
2015 2015-05-21 0.09 0 < 0.09
2015 2015-05-21 0.09 0 < 0.09
2015 2015-02-11 0.09 0 < 0.09
2015 2015-02-11 0.09 0 < 0.09
2014 2014-11-19 0.09 0 < 0.09
2014 2014-11-19 0.09 0 < 0.09
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.01 0 < 0.01
2015 2015-08-26 0.01 0 < 0.01
2015 2015-05-21 0.01 0 < 0.01
2015 2015-05-21 0.01 0 < 0.01
2015 2015-02-11 0.01 0 < 0.01
2015 2015-02-11 0.01 0 < 0.01
2014 2014-11-19 0.01 0 < 0.01
2014 2014-11-19 0.01 0 < 0.01
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.03 0 < 0.03
2015 2015-08-26 0.03 0 < 0.03
2015 2015-05-21 0.03 0 < 0.03
2015 2015-05-21 0.03 0 < 0.03
2015 2015-02-11 0.03 0 < 0.03
2015 2015-02-11 0.03 0 < 0.03
2014 2014-11-19 0.03 0 < 0.03
2014 2014-11-19 0.03 0 < 0.03
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.02 0 < 0.02
2015 2015-08-26 0.02 0 < 0.02
2015 2015-05-21 0.02 0 < 0.02
2015 2015-05-21 0.02 0 < 0.02
2015 2015-02-11 0.02 0 < 0.02
2015 2015-02-11 0.02 0 < 0.02
2014 2014-11-19 0.02 0 < 0.02
2014 2014-11-19 0.02 0 < 0.02
vanadium 0.2 21 0.13 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.2 21 < 0.2
2015 2015-08-26 0.2 21 0.35
2015 2015-08-26 0.2 21 0.74
2015 2015-08-26 0.2 21 0.75
2015 2015-05-21 0.2 21 < 0.2
2015 2015-05-21 0.2 21 0.24
2015 2015-05-21 0.2 21 < 0.2
2015 2015-05-21 0.2 21 < 0.2
2015 2015-02-11 0.2 21 < 0.2
2015 2015-02-11 0.2 21 < 0.2
2015 2015-02-11 0.2 21 < 0.2
2015 2015-02-11 0.2 21 < 0.2
2014 2014-11-19 0.2 21 < 0.2
2014 2014-11-19 0.2 21 < 0.2
2014 2014-11-19 0.2 21 < 0.2
2014 2014-11-19 0.2 21 < 0.2
molybdenum 1 40 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 1 40 < 1
2015 2015-08-26 1 40 < 1
2015 2015-08-26 1 40 < 1
2015 2015-08-26 1 40 < 1
2015 2015-05-21 1 40 < 1
2015 2015-05-21 1 40 < 1
2015 2015-05-21 1 40 < 1
2015 2015-05-21 1 40 < 1
2015 2015-02-11 1 40 < 1
2015 2015-02-11 1 40 < 1
2015 2015-02-11 1 40 < 1
2015 2015-02-11 1 40 < 1
2014 2014-11-19 1 40 < 1
2014 2014-11-19 1 40 < 1
2014 2014-11-19 1 40 < 1
2014 2014-11-19 1 40 < 1
chromium-6 0.03 0 0.0768 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.03 0 < 0.03
2015 2015-08-26 0.03 0 0.077
2015 2015-08-26 0.03 0 0.26
2015 2015-08-26 0.03 0 0.18
2015 2015-05-21 0.03 0 < 0.03
2015 2015-05-21 0.03 0 0.12
2015 2015-05-21 0.03 0 0.076
2015 2015-05-21 0.03 0 0.07
2015 2015-02-11 0.03 0 < 0.03
2015 2015-02-11 0.03 0 0.049
2015 2015-02-11 0.03 0 0.031
2015 2015-02-11 0.03 0 0.059
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.03 0.0004 < 0.03
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.06 90 < 0.06
strontium 0.3 1500 68.9438 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.3 1500 < 0.3
2015 2015-08-26 0.3 1500 74
2015 2015-08-26 0.3 1500 86.7
2015 2015-08-26 0.3 1500 77.6
2015 2015-05-21 0.3 1500 67.7
2015 2015-05-21 0.3 1500 73.5
2015 2015-05-21 0.3 1500 81
2015 2015-05-21 0.3 1500 75.2
2015 2015-02-11 0.3 1500 66.5
2015 2015-02-11 0.3 1500 69.5
2015 2015-02-11 0.3 1500 72.9
2015 2015-02-11 0.3 1500 70.1
2014 2014-11-19 0.3 1500 69.6
2014 2014-11-19 0.3 1500 71.6
2014 2014-11-19 0.3 1500 73.4
2014 2014-11-19 0.3 1500 73.8
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.2 2.69 < 0.2
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.1 0.0103 < 0.1
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.08 0 < 0.08
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.2 140 < 0.2
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.03 6.14 < 0.03
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-08-26 0.07 0.35 < 0.07

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
CT32306 lead 2015-01-01 2017-12-31 0.005mg/L
CT31636 lead 2016-01-01 2016-12-31 0mg/L
CT31615 lead 2016-01-01 2016-12-31 0mg/L
CT27382 lead 2014-01-01 2016-12-31 0.0014mg/L
CT28036 lead 2015-01-01 2015-12-31 0mg/L
CT28037 lead 2015-01-01 2015-12-31 0mg/L
CT26576 lead 2014-01-01 2014-12-31 0mg/L
CT26577 lead 2014-01-01 2014-12-31 0mg/L
CT24822 lead 2013-01-01 2013-12-31 0mg/L
CT24823 lead 2013-01-01 2013-12-31 0mg/L
CT21840 lead 2011-01-01 2013-12-31 0mg/L
CT23154 lead 2012-01-01 2012-12-31 0mg/L
CT23155 lead 2012-01-01 2012-12-31 0mg/L
CT21651 lead 2011-01-01 2011-12-31 0mg/L
CT21652 lead 2011-01-01 2011-12-31 0mg/L
CT21192 lead 2008-01-01 2010-12-31 0.0024mg/L
CT20152 lead 2010-01-01 2010-12-31 0.001mg/L
CT20153 lead 2010-01-01 2010-12-31 0mg/L
CT19289 lead 2009-01-01 2009-12-31 0mg/L
CT19292 lead 2009-01-01 2009-12-31 0mg/L
CT19288 lead 2008-01-01 2008-12-31 0mg/L
CT19297 lead 2008-01-01 2008-12-31 0mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2017-04-01 - 2017-06-30 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2017-04-01 - 2017-06-30 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2017-04-01 - 2017-06-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2015-04-01 - 2015-06-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2013-07-01 - 2013-09-30 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Known
2013-07-01 - 2013-09-30 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Known
2012-01-01 - 2012-12-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2012-01-01 - 2012-12-31 Nitrates Monitoring, Regular Nitrite Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular Vinyl chloride Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
2009-01-01 - 2009-12-31 Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
2008-04-01 - 2008-06-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chlorine Returned to Compliance
2008-05-01 - 2008-05-31 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Returned to Compliance
2007-02-01 - 2007-02-28 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Filter) Surface Water Treatment Rule Returned to Compliance
2007-02-01 - 2007-02-28 Long Term 1 Enhanced Surface Water Treatment Rule Monitoring, Turbidity (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2004-01-01 - 2004-12-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2004-01-01 - 2004-12-31 Nitrates Monitoring, Regular Nitrite Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Aldicarb Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Aldicarb sulfoxide Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Aldicarb sulfone Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Atrazine Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Benzo(a)pyrene Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Dalapon Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) adipate Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) phthalate Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Dinoseb Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Diquat Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Endrin Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Endothall Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Glyphosate Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular HEXACHLOROBENZENE Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Carbofuran Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Hexachlorocyclopentadiene Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular OXAMYL Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Picloram Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular 2,3,7,8-TCDD Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Chlordane Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular 2,4-D Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Heptachlor Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Heptachlor epoxide Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Pentachlorophenol Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Total Polychlorinated Biphenyls (PCB) Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular Toxaphene Returned to Compliance
1996-01-01 - 1998-12-31 Synthetic Organic Chemicals Monitoring, Regular 2,4,5-TP Returned to Compliance
2014-01-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
2016-07-01 - N/A Consumer Confidence Rule Consumer Confidence Report Complete Failure to Report 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.