Public Water System: Pittsburgh Water & Sewer Auth

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: PA5020038
Type: Community water system
EPA Region: 03
Primary Service Area: Residential Area
Primary Source: Surface water
Population Served: 520,000
Contact Information
PITTSBURGH WATER & SEWER AUTH
ROBERT WEIMAR, INTERIM EX DIR
1200 PENN AVE.
PITTSBURGH, PA 15222

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   (2) 2015   (1)
1,4-dioxane
chlorate
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 2015-05-20 20 210 200
2015 2015-05-20 20 210 280
2015 2015-05-20 20 210 370
2015 2015-02-18 20 210 34
2015 2015-02-18 20 210 38
2015 2015-02-18 20 210 97
2014 2014-11-18 20 210 140
2014 2014-11-18 20 210 80
2014 2014-11-18 20 210 100
2014 2014-08-25 20 210 190
2014 2014-08-25 20 210 120
2014 2014-08-25 20 210 320

1,4-dioxane
Is this in your home's pipes?

Year Test Date MRL HRL Test Result
2015 2015-05-20 0.07 0.35 < 0.07
2015 2015-05-20 0.07 0.35 < 0.07
2015 2015-02-18 0.07 0.35 < 0.07
2015 2015-02-18 0.07 0.35 < 0.07
2014 2014-11-18 0.07 0.35 < 0.07
2014 2014-11-18 0.07 0.35 < 0.07
2014 2014-08-25 0.07 0.35 < 0.07
2014 2014-08-25 0.07 0.35 1.6

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
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.2 140 < 0.2
2015 2015-05-20 0.2 140 < 0.2
2015 2015-02-18 0.2 140 < 0.2
2015 2015-02-18 0.2 140 < 0.2
2014 2014-11-18 0.2 140 < 0.2
2014 2014-11-18 0.2 140 < 0.2
2014 2014-08-25 0.2 140 < 0.2
2014 2014-08-25 0.2 140 < 0.2
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.08 0 < 0.08
2015 2015-05-20 0.08 0 < 0.08
2015 2015-02-18 0.08 0 < 0.08
2015 2015-02-18 0.08 0 < 0.08
2014 2014-11-18 0.08 0 < 0.08
2014 2014-11-18 0.08 0 < 0.08
2014 2014-08-25 0.08 0 < 0.08
2014 2014-08-25 0.08 0 < 0.08
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.2 2.69 < 0.2
2015 2015-05-20 0.2 2.69 < 0.2
2015 2015-02-18 0.2 2.69 < 0.2
2015 2015-02-18 0.2 2.69 < 0.2
2014 2014-11-18 0.2 2.69 < 0.2
2014 2014-11-18 0.2 2.69 < 0.2
2014 2014-08-25 0.2 2.69 < 0.2
2014 2014-08-25 0.2 2.69 < 0.2
chromium 0.2 100 0.7508 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.2 100 0.61
2015 2015-05-20 0.2 100 0.69
2015 2015-05-20 0.2 100 0.67
2015 2015-02-18 0.2 100 0.58
2015 2015-02-18 0.2 100 0.83
2015 2015-02-18 0.2 100 0.72
2014 2014-11-18 0.2 100 1.1
2014 2014-11-18 0.2 100 1.3
2014 2014-11-18 0.2 100 0.87
2014 2014-08-25 0.2 100 0.58
2014 2014-08-25 0.2 100 0.51
2014 2014-08-25 0.2 100 0.55
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.06 90 < 0.06
2015 2015-05-20 0.06 90 < 0.06
2015 2015-02-18 0.06 90 < 0.06
2015 2015-02-18 0.06 90 < 0.06
2014 2014-11-18 0.06 90 < 0.06
2014 2014-11-18 0.06 90 < 0.06
2014 2014-08-25 0.06 90 < 0.06
2014 2014-08-25 0.06 90 < 0.06
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.1 0.0103 < 0.1
2015 2015-05-20 0.1 0.0103 < 0.1
2015 2015-02-18 0.1 0.0103 < 0.1
2015 2015-02-18 0.1 0.0103 < 0.1
2014 2014-11-18 0.1 0.0103 < 0.1
2014 2014-11-18 0.1 0.0103 < 0.1
2014 2014-08-25 0.1 0.0103 < 0.1
2014 2014-08-25 0.1 0.0103 < 0.1
chromium-6 0.03 0 0.535 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.03 0 0.51
2015 2015-05-20 0.03 0 0.6
2015 2015-05-20 0.03 0 0.57
2015 2015-02-18 0.03 0 0.46
2015 2015-02-18 0.03 0 0.51
2015 2015-02-18 0.03 0 0.5
2014 2014-11-18 0.03 0 0.59
2014 2014-11-18 0.03 0 0.59
2014 2014-11-18 0.03 0 0.72
2014 2014-08-25 0.03 0 0.47
2014 2014-08-25 0.03 0 0.44
2014 2014-08-25 0.03 0 0.46
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.03 0.0004 < 0.03
2015 2015-05-20 0.03 0.0004 < 0.03
2015 2015-02-18 0.03 0.0004 < 0.03
2015 2015-02-18 0.03 0.0004 < 0.03
2014 2014-11-18 0.03 0.0004 < 0.03
2014 2014-11-18 0.03 0.0004 < 0.03
2014 2014-08-25 0.03 0.0004 < 0.03
2014 2014-08-25 0.03 0.0004 < 0.03
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.03 0 < 0.03
2015 2015-05-20 0.03 0 < 0.03
2015 2015-02-18 0.03 0 < 0.03
2015 2015-02-18 0.03 0 < 0.03
2014 2014-11-18 0.03 0 < 0.03
2014 2014-11-18 0.03 0 < 0.03
2014 2014-08-25 0.03 0 < 0.03
2014 2014-08-25 0.03 0 < 0.03
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.09 0 < 0.09
2015 2015-05-20 0.09 0 < 0.09
2015 2015-02-18 0.09 0 < 0.09
2015 2015-02-18 0.09 0 < 0.09
2014 2014-11-18 0.09 0 < 0.09
2014 2014-11-18 0.09 0 < 0.09
2014 2014-08-25 0.09 0 < 0.09
2014 2014-08-25 0.09 0 < 0.09
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.02 0 < 0.02
2015 2015-05-20 0.02 0 < 0.02
2015 2015-02-18 0.02 0 < 0.02
2015 2015-02-18 0.02 0 < 0.02
2014 2014-11-18 0.02 0 < 0.02
2014 2014-11-18 0.02 0 < 0.02
2014 2014-08-25 0.02 0 < 0.02
2014 2014-08-25 0.02 0 < 0.02
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.0008 0.35 < 0.0008
2015 2015-05-20 0.0008 0.35 < 0.0008
2015 2015-02-18 0.0008 0.35 < 0.0008
2015 2015-02-18 0.0008 0.35 < 0.0008
2014 2014-11-18 0.0008 0.35 < 0.0008
2014 2014-11-18 0.0008 0.35 < 0.0008
2014 2014-08-25 0.0008 0.35 < 0.0008
2014 2014-08-25 0.0008 0.35 < 0.0008
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.01 0 < 0.01
2015 2015-05-20 0.01 0 < 0.01
2015 2015-02-18 0.01 0 < 0.01
2015 2015-02-18 0.01 0 < 0.01
2014 2014-11-18 0.01 0 < 0.01
2014 2014-11-18 0.01 0 < 0.01
2014 2014-08-25 0.01 0 < 0.01
2014 2014-08-25 0.01 0 < 0.01
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.04 0.07 < 0.04
2015 2015-05-20 0.04 0.07 < 0.04
2015 2015-02-18 0.04 0.07 < 0.04
2015 2015-02-18 0.04 0.07 < 0.04
2014 2014-11-18 0.04 0.07 < 0.04
2014 2014-11-18 0.04 0.07 < 0.04
2014 2014-08-25 0.04 0.07 < 0.04
2014 2014-08-25 0.04 0.07 < 0.04
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.02 0.07 < 0.02
2015 2015-05-20 0.02 0.07 < 0.02
2015 2015-02-18 0.02 0.07 < 0.02
2015 2015-02-18 0.02 0.07 < 0.02
2014 2014-11-18 0.02 0.07 < 0.02
2014 2014-11-18 0.02 0.07 < 0.02
2014 2014-08-25 0.02 0.07 < 0.02
2014 2014-08-25 0.02 0.07 < 0.02
vanadium 0.2 21 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.2 21 < 0.2
2015 2015-05-20 0.2 21 < 0.2
2015 2015-05-20 0.2 21 < 0.2
2015 2015-02-18 0.2 21 < 0.2
2015 2015-02-18 0.2 21 < 0.2
2015 2015-02-18 0.2 21 < 0.2
2014 2014-11-18 0.2 21 < 0.2
2014 2014-11-18 0.2 21 < 0.2
2014 2014-11-18 0.2 21 < 0.2
2014 2014-08-25 0.2 21 < 0.2
2014 2014-08-25 0.2 21 < 0.2
2014 2014-08-25 0.2 21 < 0.2
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.0004 0.0009 < 0.0004
2015 2015-05-20 0.0004 0.0009 < 0.0004
2015 2015-02-18 0.0004 0.0009 < 0.0004
2015 2015-02-18 0.0004 0.0009 < 0.0004
2014 2014-11-18 0.0004 0.0009 < 0.0004
2014 2014-11-18 0.0004 0.0009 < 0.0004
2014 2014-08-25 0.0004 0.0009 < 0.0004
2014 2014-08-25 0.0004 0.0009 < 0.0004
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.002 0.35 < 0.002
2015 2015-05-20 0.002 0.35 < 0.002
2015 2015-02-18 0.002 0.35 < 0.002
2015 2015-02-18 0.002 0.35 < 0.002
2014 2014-11-18 0.002 0.35 < 0.002
2014 2014-11-18 0.002 0.35 < 0.002
2014 2014-08-25 0.002 0.35 < 0.002
2014 2014-08-25 0.002 0.35 < 0.002
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.0001 0 < 0.0001
2015 2015-05-20 0.0001 0 < 0.0001
2015 2015-02-18 0.0001 0 < 0.0001
2015 2015-02-18 0.0001 0 < 0.0001
2014 2014-11-18 0.0001 0 < 0.0001
2014 2014-11-18 0.0001 0 < 0.0001
2014 2014-08-25 0.0001 0 < 0.0001
2014 2014-08-25 0.0001 0 < 0.0001
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.0003 0 < 0.0003
2015 2015-05-20 0.0003 0 < 0.0003
2015 2015-02-18 0.0003 0 < 0.0003
2015 2015-02-18 0.0003 0 < 0.0003
2014 2014-11-18 0.0003 0 < 0.0003
2014 2014-11-18 0.0003 0 < 0.0003
2014 2014-08-25 0.0003 0 < 0.0003
2014 2014-08-25 0.0003 0 < 0.0003
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.0009 0.035 < 0.0009
2015 2015-05-20 0.0009 0.035 < 0.0009
2015 2015-02-18 0.0009 0.035 < 0.0009
2015 2015-02-18 0.0009 0.035 < 0.0009
2014 2014-11-18 0.0009 0.035 < 0.0009
2014 2014-11-18 0.0009 0.035 < 0.0009
2014 2014-08-25 0.0009 0.035 < 0.0009
2014 2014-08-25 0.0009 0.035 < 0.0009
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.03 6.14 < 0.03
2015 2015-05-20 0.03 6.14 < 0.03
2015 2015-02-18 0.03 6.14 < 0.03
2015 2015-02-18 0.03 6.14 < 0.03
2014 2014-11-18 0.03 6.14 < 0.03
2014 2014-11-18 0.03 6.14 < 0.03
2014 2014-08-25 0.03 6.14 < 0.03
2014 2014-08-25 0.03 6.14 < 0.03
molybdenum 1 40 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 1 40 < 1
2015 2015-05-20 1 40 < 1
2015 2015-05-20 1 40 < 1
2015 2015-02-18 1 40 < 1
2015 2015-02-18 1 40 < 1
2015 2015-02-18 1 40 < 1
2014 2014-11-18 1 40 < 1
2014 2014-11-18 1 40 < 1
2014 2014-11-18 1 40 < 1
2014 2014-08-25 1 40 < 1
2014 2014-08-25 1 40 < 1
2014 2014-08-25 1 40 < 1
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.004 0.35 < 0.004
2015 2015-05-20 0.004 0.35 < 0.004
2015 2015-02-18 0.004 0.35 < 0.004
2015 2015-02-18 0.004 0.35 < 0.004
2014 2014-11-18 0.004 0.35 < 0.004
2014 2014-11-18 0.004 0.35 < 0.004
2014 2014-08-25 0.004 0.35 < 0.004
2014 2014-08-25 0.004 0.35 < 0.004
strontium 0.3 1500 121.6667 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 0.3 1500 120
2015 2015-05-20 0.3 1500 120
2015 2015-05-20 0.3 1500 110
2015 2015-02-18 0.3 1500 130
2015 2015-02-18 0.3 1500 150
2015 2015-02-18 0.3 1500 130
2014 2014-11-18 0.3 1500 130
2014 2014-11-18 0.3 1500 120
2014 2014-11-18 0.3 1500 130
2014 2014-08-25 0.3 1500 110
2014 2014-08-25 0.3 1500 100
2014 2014-08-25 0.3 1500 110
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-05-20 1 70 < 1
2015 2015-05-20 1 70 < 1
2015 2015-05-20 1 70 < 1
2015 2015-02-18 1 70 < 1
2015 2015-02-18 1 70 < 1
2015 2015-02-18 1 70 < 1
2014 2014-11-18 1 70 < 1
2014 2014-11-18 1 70 < 1
2014 2014-11-18 1 70 < 1
2014 2014-08-25 1 70 < 1
2014 2014-08-25 1 70 < 1
2014 2014-08-25 1 70 < 1

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
PBCU06201700274 lead 2017-01-01 2017-06-30 0.015mg/L
PBCU12201600164 lead 2016-07-01 2016-12-31 0.018mg/L
PBCU06201600156 lead 2016-01-01 2016-06-30 0.022mg/L
PBCU09201303466 lead 2013-06-01 2013-09-30 0.0148mg/L
6814039 lead 2010-01-01 2010-12-31 0.0103mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2017-07-01 - 2017-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2017-01-01 - 2017-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2016-01-01 - 2016-12-31 Inorganic Chemicals Monitoring, Regular CYANIDE Returned to Compliance
2016-01-01 - 2016-12-31 Inorganic Chemicals Monitoring, Regular Fluoride Returned to Compliance
2016-10-01 - 2016-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2016-07-01 - 2016-07-31 Revised Total Coliform Rule Monitoring, Routine (RTCR) Revised Total Coliform Rule Returned to Compliance
2016-04-01 - 2016-06-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2016-01-01 - 2016-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2015-10-01 - 2015-12-31 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2015-10-01 - 2015-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2015-07-01 - 2015-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2014-10-01 - 2014-12-31 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2014-10-01 - 2014-12-31 Stage 2 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2012-01-01 - 2012-12-31 Inorganic Chemicals Monitoring, Regular Cadmium Returned to Compliance
2012-01-01 - 2012-12-31 Inorganic Chemicals Monitoring, Regular Chromium Returned to Compliance
2012-01-01 - 2012-12-31 Inorganic Chemicals Monitoring, Regular CYANIDE Returned to Compliance
2012-01-01 - 2012-12-31 Inorganic Chemicals Monitoring, Regular Fluoride Returned to Compliance
2012-01-01 - 2012-12-31 Inorganic Chemicals Monitoring, Regular Beryllium, Total Returned to Compliance
2012-07-01 - 2012-07-31 Long Term 1 Enhanced Surface Water Treatment Rule Monitoring, Turbidity (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2010-10-01 - 2010-12-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2010-10-01 - 2010-12-31 Nitrates Monitoring, Regular Nitrite Returned to Compliance
2008-01-01 - 2008-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2005-07-01 - 2005-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2005-07-01 - 2005-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2005-07-01 - 2005-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
2003-12-01 - 2003-12-31 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2003-12-01 - 2003-12-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Filter) Surface Water Treatment Rule Returned to Compliance
2003-12-01 - 2003-12-31 Long Term 1 Enhanced Surface Water Treatment Rule Monitoring, Turbidity (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2003-10-01 - 2003-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chlorine Returned to Compliance
2003-07-01 - 2003-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) CARBON, TOTAL Returned to Compliance
1999-07-01 - 2003-06-30 Radionuclides Monitoring, Regular Gross Beta Particle Activity Returned to Compliance
1999-07-01 - 2003-06-30 Radionuclides Monitoring, Regular Tritium Returned to Compliance
1999-07-01 - 2003-06-30 Radionuclides Monitoring, Regular 38-STRONTIUM-90 Returned to Compliance
1994-06-01 - 1994-06-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1992-05-01 - 1992-05-31 Total Coliform Rule Monitoring, Repeat Minor (TCR) Coliform (TCR) 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.