Public Water System: North Reading Water Dept.

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: MA3213000
Type: Community water system
EPA Region: 01
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 15,500
Contact Information
NORTH READING WATER DEPT.
MARK E CLARK
235 NORTH STREET
NORTH READING, MA 01864

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   (1)
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 2015-06-17 20 210 220
2015 2015-06-17 20 210 220
2015 2015-03-18 20 210 300
2015 2015-03-18 20 210 340
2015 2015-03-18 20 210 200
2015 2015-03-18 20 210 160
2015 2015-03-17 20 210 730
2015 2015-03-17 20 210 170
2015 2015-03-17 20 210 830
2015 2015-03-17 20 210 160
2014 2014-12-10 20 210 150
2014 2014-12-10 20 210 230
2014 2014-10-08 20 210 1300
2014 2014-10-08 20 210 1100
2014 2014-09-23 20 210 300
2014 2014-09-23 20 210 280
2014 2014-09-17 20 210 160
2014 2014-09-17 20 210 980
2014 2014-09-17 20 210 160
2014 2014-09-17 20 210 1100

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
strontium 0.3 1500 99.3 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.3 1500 78
2015 2015-06-17 0.3 1500 84
2015 2015-03-18 0.3 1500 130
2015 2015-03-18 0.3 1500 110
2015 2015-03-18 0.3 1500 91
2015 2015-03-18 0.3 1500 79
2015 2015-03-17 0.3 1500 160
2015 2015-03-17 0.3 1500 77
2015 2015-03-17 0.3 1500 170
2015 2015-03-17 0.3 1500 81
2014 2014-12-10 0.3 1500 67
2014 2014-12-10 0.3 1500 66
2014 2014-09-30 0.3 1500 100
2014 2014-09-30 0.3 1500 85
2014 2014-09-23 0.3 1500 68
2014 2014-09-23 0.3 1500 66
2014 2014-09-17 0.3 1500 68
2014 2014-09-17 0.3 1500 66
2014 2014-09-17 0.3 1500 170
2014 2014-09-17 0.3 1500 170
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 1 70 < 1
2015 2015-06-17 1 70 < 1
2015 2015-03-18 1 70 < 1
2015 2015-03-18 1 70 < 1
2015 2015-03-18 1 70 < 1
2015 2015-03-18 1 70 < 1
2015 2015-03-17 1 70 < 1
2015 2015-03-17 1 70 < 1
2015 2015-03-17 1 70 < 1
2015 2015-03-17 1 70 < 1
2014 2014-12-10 1 70 < 1
2014 2014-12-10 1 70 < 1
2014 2014-09-30 1 70 < 1
2014 2014-09-30 1 70 < 1
2014 2014-09-23 1 70 < 1
2014 2014-09-23 1 70 < 1
2014 2014-09-17 1 70 < 1
2014 2014-09-17 1 70 < 1
2014 2014-09-17 1 70 < 1
2014 2014-09-17 1 70 < 1
molybdenum 1 40 0.27 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 1 40 < 1
2015 2015-06-17 1 40 < 1
2015 2015-03-18 1 40 1.7
2015 2015-03-18 1 40 1.3
2015 2015-03-18 1 40 < 1
2015 2015-03-18 1 40 < 1
2015 2015-03-17 1 40 < 1
2015 2015-03-17 1 40 < 1
2015 2015-03-17 1 40 < 1
2015 2015-03-17 1 40 < 1
2014 2014-12-10 1 40 < 1
2014 2014-12-10 1 40 < 1
2014 2014-09-30 1 40 2.4
2014 2014-09-30 1 40 < 1
2014 2014-09-23 1 40 < 1
2014 2014-09-23 1 40 < 1
2014 2014-09-17 1 40 < 1
2014 2014-09-17 1 40 < 1
2014 2014-09-17 1 40 < 1
2014 2014-09-17 1 40 < 1
vanadium 0.2 21 0.183 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.2 21 0.41
2015 2015-06-17 0.2 21 0.46
2015 2015-03-18 0.2 21 < 0.2
2015 2015-03-18 0.2 21 < 0.2
2015 2015-03-18 0.2 21 0.2
2015 2015-03-18 0.2 21 0.23
2015 2015-03-17 0.2 21 0.21
2015 2015-03-17 0.2 21 < 0.2
2015 2015-03-17 0.2 21 < 0.2
2015 2015-03-17 0.2 21 0.22
2014 2014-12-10 0.2 21 0.21
2014 2014-12-10 0.2 21 0.22
2014 2014-09-30 0.2 21 < 0.2
2014 2014-09-30 0.2 21 < 0.2
2014 2014-09-23 0.2 21 0.4
2014 2014-09-23 0.2 21 0.38
2014 2014-09-17 0.2 21 0.37
2014 2014-09-17 0.2 21 0.35
2014 2014-09-17 0.2 21 < 0.2
2014 2014-09-17 0.2 21 < 0.2
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.02 0.07 < 0.02
2015 2015-03-18 0.02 0.07 < 0.02
2015 2015-03-18 0.02 0.07 < 0.02
2015 2015-03-17 0.02 0.07 < 0.02
2015 2015-03-17 0.02 0.07 < 0.02
2014 2014-12-10 0.02 0.07 < 0.02
2014 2014-10-08 0.02 0.07 < 0.02
2014 2014-09-23 0.02 0.07 < 0.02
2014 2014-09-17 0.02 0.07 < 0.02
2014 2014-09-17 0.02 0.07 < 0.02
chromium-6 0.03 0 0.0772 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.03 0 0.08
2015 2015-06-17 0.03 0 0.064
2015 2015-03-18 0.03 0 0.071
2015 2015-03-18 0.03 0 0.072
2015 2015-03-18 0.03 0 0.1
2015 2015-03-18 0.03 0 0.062
2015 2015-03-17 0.03 0 0.067
2015 2015-03-17 0.03 0 0.076
2015 2015-03-17 0.03 0 0.092
2015 2015-03-17 0.03 0 0.062
2014 2014-12-10 0.03 0 0.054
2014 2014-12-10 0.03 0 0.057
2014 2014-10-08 0.03 0 0.066
2014 2014-10-08 0.03 0 0.057
2014 2014-09-23 0.03 0 0.092
2014 2014-09-23 0.03 0 0.095
2014 2014-09-17 0.03 0 0.098
2014 2014-09-17 0.03 0 0.091
2014 2014-09-17 0.03 0 0.1
2014 2014-09-17 0.03 0 0.088
chromium 0.2 100 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.2 100 < 0.2
2015 2015-06-17 0.2 100 < 0.2
2015 2015-03-18 0.2 100 < 0.2
2015 2015-03-18 0.2 100 < 0.2
2015 2015-03-18 0.2 100 < 0.2
2015 2015-03-18 0.2 100 < 0.2
2015 2015-03-17 0.2 100 < 0.2
2015 2015-03-17 0.2 100 < 0.2
2015 2015-03-17 0.2 100 < 0.2
2015 2015-03-17 0.2 100 < 0.2
2014 2014-12-10 0.2 100 < 0.2
2014 2014-12-10 0.2 100 < 0.2
2014 2014-09-30 0.2 100 < 0.2
2014 2014-09-30 0.2 100 < 0.2
2014 2014-09-23 0.2 100 < 0.2
2014 2014-09-23 0.2 100 < 0.2
2014 2014-09-17 0.2 100 < 0.2
2014 2014-09-17 0.2 100 < 0.2
2014 2014-09-17 0.2 100 < 0.2
2014 2014-09-17 0.2 100 < 0.2
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.2 2.69 < 0.2
2015 2015-03-18 0.2 2.69 < 0.2
2015 2015-03-18 0.2 2.69 < 0.2
2015 2015-03-17 0.2 2.69 < 0.2
2015 2015-03-17 0.2 2.69 < 0.2
2014 2014-12-10 0.2 2.69 < 0.2
2014 2014-12-01 0.2 2.69 < 0.2
2014 2014-12-01 0.2 2.69 < 0.2
2014 2014-09-30 0.2 2.69 < 0.2
2014 2014-09-23 0.2 2.69 < 0.2
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.2 140 < 0.2
2015 2015-03-18 0.2 140 < 0.2
2015 2015-03-18 0.2 140 < 0.2
2015 2015-03-17 0.2 140 < 0.2
2015 2015-03-17 0.2 140 < 0.2
2014 2014-12-10 0.2 140 < 0.2
2014 2014-12-01 0.2 140 < 0.2
2014 2014-12-01 0.2 140 < 0.2
2014 2014-09-30 0.2 140 < 0.2
2014 2014-09-23 0.2 140 < 0.2
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.02 0 < 0.02
2015 2015-03-18 0.02 0 < 0.02
2015 2015-03-18 0.02 0 < 0.02
2015 2015-03-17 0.02 0 < 0.02
2015 2015-03-17 0.02 0 < 0.02
2014 2014-12-10 0.02 0 < 0.02
2014 2014-10-08 0.02 0 < 0.02
2014 2014-09-23 0.02 0 < 0.02
2014 2014-09-17 0.02 0 < 0.02
2014 2014-09-17 0.02 0 < 0.02
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.08 0 < 0.08
2015 2015-03-18 0.08 0 < 0.08
2015 2015-03-18 0.08 0 < 0.08
2015 2015-03-17 0.08 0 < 0.08
2015 2015-03-17 0.08 0 < 0.08
2014 2014-12-10 0.08 0 < 0.08
2014 2014-12-01 0.08 0 < 0.08
2014 2014-12-01 0.08 0 < 0.08
2014 2014-09-30 0.08 0 < 0.08
2014 2014-09-23 0.08 0 < 0.08
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.04 0.07 < 0.04
2015 2015-03-18 0.04 0.07 < 0.04
2015 2015-03-18 0.04 0.07 < 0.04
2015 2015-03-17 0.04 0.07 < 0.04
2015 2015-03-17 0.04 0.07 < 0.04
2014 2014-12-10 0.04 0.07 < 0.04
2014 2014-10-08 0.04 0.07 < 0.04
2014 2014-09-23 0.04 0.07 < 0.04
2014 2014-09-17 0.04 0.07 < 0.04
2014 2014-09-17 0.04 0.07 < 0.04
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.03 6.14 < 0.03
2015 2015-03-18 0.03 6.14 < 0.03
2015 2015-03-18 0.03 6.14 < 0.03
2015 2015-03-17 0.03 6.14 < 0.03
2015 2015-03-17 0.03 6.14 < 0.03
2014 2014-12-10 0.03 6.14 < 0.03
2014 2014-12-01 0.03 6.14 < 0.03
2014 2014-12-01 0.03 6.14 < 0.03
2014 2014-09-30 0.03 6.14 < 0.03
2014 2014-09-23 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
2015 2015-06-17 0.1 0.0103 < 0.1
2015 2015-03-18 0.1 0.0103 < 0.1
2015 2015-03-18 0.1 0.0103 < 0.1
2015 2015-03-17 0.1 0.0103 < 0.1
2015 2015-03-17 0.1 0.0103 < 0.1
2014 2014-12-10 0.1 0.0103 < 0.1
2014 2014-12-01 0.1 0.0103 < 0.1
2014 2014-12-01 0.1 0.0103 < 0.1
2014 2014-09-30 0.1 0.0103 < 0.1
2014 2014-09-23 0.1 0.0103 < 0.1
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.03 0 < 0.03
2015 2015-03-18 0.03 0 < 0.03
2015 2015-03-18 0.03 0 < 0.03
2015 2015-03-17 0.03 0 < 0.03
2015 2015-03-17 0.03 0 < 0.03
2014 2014-12-10 0.03 0 < 0.03
2014 2014-10-08 0.03 0 < 0.03
2014 2014-09-23 0.03 0 < 0.03
2014 2014-09-17 0.03 0 < 0.03
2014 2014-09-17 0.03 0 < 0.03
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.06 90 < 0.06
2015 2015-03-18 0.06 90 < 0.06
2015 2015-03-18 0.06 90 < 0.06
2015 2015-03-17 0.06 90 < 0.06
2015 2015-03-17 0.06 90 < 0.06
2014 2014-12-10 0.06 90 < 0.06
2014 2014-12-01 0.06 90 < 0.06
2014 2014-12-01 0.06 90 < 0.06
2014 2014-09-30 0.06 90 < 0.06
2014 2014-09-23 0.06 90 < 0.06
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.07 0.35 < 0.07
2015 2015-03-18 0.07 0.35 < 0.07
2015 2015-03-18 0.07 0.35 < 0.07
2015 2015-03-17 0.07 0.35 < 0.07
2015 2015-03-17 0.07 0.35 < 0.07
2014 2014-12-10 0.07 0.35 < 0.07
2014 2014-09-30 0.07 0.35 < 0.07
2014 2014-09-23 0.07 0.35 < 0.07
2014 2014-09-17 0.07 0.35 < 0.07
2014 2014-09-17 0.07 0.35 < 0.07
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.01 0 < 0.01
2015 2015-03-18 0.01 0 < 0.01
2015 2015-03-18 0.01 0 < 0.01
2015 2015-03-17 0.01 0 < 0.01
2015 2015-03-17 0.01 0 < 0.01
2014 2014-12-10 0.01 0 < 0.01
2014 2014-10-08 0.01 0 < 0.01
2014 2014-09-23 0.01 0 < 0.01
2014 2014-09-17 0.01 0 < 0.01
2014 2014-09-17 0.01 0 < 0.01
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.03 0.0004 < 0.03
2015 2015-03-18 0.03 0.0004 < 0.03
2015 2015-03-18 0.03 0.0004 < 0.03
2015 2015-03-17 0.03 0.0004 < 0.03
2015 2015-03-17 0.03 0.0004 < 0.03
2014 2014-12-10 0.03 0.0004 < 0.03
2014 2014-12-01 0.03 0.0004 < 0.03
2014 2014-12-01 0.03 0.0004 < 0.03
2014 2014-09-30 0.03 0.0004 < 0.03
2014 2014-09-23 0.03 0.0004 < 0.03
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-06-17 0.09 0 < 0.09
2015 2015-03-18 0.09 0 < 0.09
2015 2015-03-18 0.09 0 < 0.09
2015 2015-03-17 0.09 0 < 0.09
2015 2015-03-17 0.09 0 < 0.09
2014 2014-12-10 0.09 0 < 0.09
2014 2014-10-08 0.09 0 < 0.09
2014 2014-09-23 0.09 0 < 0.09
2014 2014-09-17 0.09 0 < 0.09
2014 2014-09-17 0.09 0 < 0.09

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
4048 lead 2013-01-01 2015-12-31 0.004mg/L
3860 lead 2010-01-01 2012-12-31 0.005mg/L
3659 lead 2009-01-01 2009-12-31 0.003mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2014-07-01 - 2014-09-30 Radionuclides Monitoring, Regular Gross Alpha, Excl. Radon and U Known
2014-07-01 - 2014-09-30 Radionuclides Monitoring, Regular Radium-226 Known
2014-04-01 - 2014-06-30 Stage 2 Disinfectants and Disinfection Byproducts Rule Maximum Contaminant Level Violation, Average TTHM Known
2013-09-01 - 2013-09-30 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Returned to Compliance
2013-07-01 - 2013-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chlorine Returned to Compliance
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Heptachlor epoxide Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Heptachlor Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Pentachlorophenol Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Toxaphene Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular 2,4,5-TP Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Total Polychlorinated Biphenyls (PCB) Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Known
2007-07-01 - 2007-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Benzo(a)pyrene Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Dalapon Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) adipate Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) phthalate Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Dinoseb Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Diquat Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Endothall Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Glyphosate Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular HEXACHLOROBENZENE Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Hexachlorocyclopentadiene Known
2007-07-01 - 2007-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular OXAMYL Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Picloram Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Simazine Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular 2,3,7,8-TCDD Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular LASSO Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Atrazine Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Carbofuran Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Chlordane Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular 2,4-D Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Endrin Known
1996-10-01 - 1996-12-31 Radionuclides Monitoring, Regular Radium-226 Known
1996-10-01 - 1996-12-31 Radionuclides Monitoring, Regular Radium-228 Known
1996-10-01 - 1996-12-31 Radionuclides Monitoring, Regular Gross Beta Particle Activity Known
1996-10-01 - 1996-12-31 Radionuclides Monitoring, Regular Tritium Known
1996-10-01 - 1996-12-31 Radionuclides Monitoring, Regular 38-STRONTIUM-90 Known
1995-11-01 - 1995-11-30 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
1991-07-01 - 1991-07-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
1991-07-01 - 1991-07-31 Radionuclides Monitoring, Regular Gross Alpha, Excl. Radon and U Known
1980-01-31 - 1980-02-29 Miscellaneous Notification, Public - Known
2006-10-01 - N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
1993-07-01 - N/A Lead and Copper Rule OCCT/SOWT Study/Recommendation Lead and Copper 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.