Wa Of Great Neck North Water System

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: NY2902841
Type: Community water system
EPA Region: 02
Primary Source: Ground water
Population Served: 31,400 		Contact Information
GRAZIANO, GREG
GRAZIANO, GREG
Water Authority of Great Neck North
50 Water Mill Lane
GREAT NECK, NY 11021
[email protected]

This public water system services 8 municipalities.

Summary Results

A summary view of tests in which a water contaminant found to exceed the Maximum Contaminant Level (MCL) set by the EPA.

Maximum Contaminant Levels Exceeded (by year):

2013   (0) 2014   (2) 2015   (0) 2016   (0) 2017   (0) 2018   (0)
1,4-dioxane
chlorate

Contaminant Detailed Results

This a view of violations of maximum contaminant levels. Use the expanded view see result data for a drinking water contaminant, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

1,4-dioxane

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-11-20 0.07 0.35 1.15
2014 2014-09-05 0.07 0.35 0.2
2014 2014-09-05 0.07 0.35 0.65
2014 2014-09-05 0.07 0.35 0.11
2014 2014-09-04 0.07 0.35 < 0.07
2014 2014-09-04 0.07 0.35 < 0.07
2014 2014-09-04 0.07 0.35 < 0.07
2014 2014-09-04 0.07 0.35 0.24
2014 2014-04-23 0.07 0.35 < 0.07
2014 2014-04-23 0.07 0.35 0.14
2014 2014-04-23 0.07 0.35 0.1
2014 2014-04-08 0.07 0.35 0.23
2014 2014-04-08 0.07 0.35 0.57
2014 2014-04-08 0.07 0.35 1.24
2014 2014-04-08 0.07 0.35 0.12
2014 2014-04-08 0.07 0.35 0.29

chlorate

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-11-20 20 210 220
2014 2014-09-10 20 210 165
2014 2014-09-05 20 210 < 20
2014 2014-09-05 20 210 < 20
2014 2014-09-05 20 210 < 20
2014 2014-09-04 20 210 < 20
2014 2014-09-04 20 210 307
2014 2014-09-04 20 210 121
2014 2014-09-04 20 210 75
2014 2014-04-23 20 210 < 20
2014 2014-04-23 20 210 < 20
2014 2014-04-23 20 210 73.2
2014 2014-04-23 20 210 469
2014 2014-04-08 20 210 < 20
2014 2014-04-08 20 210 38.7
2014 2014-04-08 20 210 147
2014 2014-04-08 20 210 69.1
2014 2014-04-08 20 210 53.7

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Other Water Contaminants Tested

The following contaminants were tested and found to be within national EPA guidelines.

Contaminant MRLMinimum Reporting Level HRLHealth Risk Limit Avg Result
1,1-dichloroethane 0.03 6.14 0.0146 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.03 6.14 0.051
2014 2014-09-05 0.03 6.14 0.056
2014 2014-09-05 0.03 6.14 < 0.03
2014 2014-09-05 0.03 6.14 0.03
2014 2014-09-04 0.03 6.14 < 0.03
2014 2014-09-04 0.03 6.14 < 0.03
2014 2014-09-04 0.03 6.14 < 0.03
2014 2014-09-04 0.03 6.14 < 0.03
2014 2014-04-23 0.03 6.14 < 0.03
2014 2014-04-23 0.03 6.14 0.034
2014 2014-04-23 0.03 6.14 < 0.03
2014 2014-04-08 0.03 6.14 0.062
2014 2014-04-08 0.03 6.14 < 0.03
2014 2014-04-08 0.03 6.14 < 0.03
2014 2014-04-08 0.03 6.14 < 0.03
2014 2014-04-08 0.03 6.14 < 0.03
[+] Expand Test Data
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.03 0.0004 < 0.03
2014 2014-09-05 0.03 0.0004 < 0.03
2014 2014-09-05 0.03 0.0004 < 0.03
2014 2014-09-05 0.03 0.0004 < 0.03
2014 2014-09-04 0.03 0.0004 < 0.03
2014 2014-09-04 0.03 0.0004 < 0.03
2014 2014-09-04 0.03 0.0004 < 0.03
2014 2014-09-04 0.03 0.0004 < 0.03
2014 2014-04-23 0.03 0.0004 < 0.03
2014 2014-04-23 0.03 0.0004 < 0.03
2014 2014-04-23 0.03 0.0004 < 0.03
2014 2014-04-08 0.03 0.0004 < 0.03
2014 2014-04-08 0.03 0.0004 < 0.03
2014 2014-04-08 0.03 0.0004 < 0.03
2014 2014-04-08 0.03 0.0004 < 0.03
2014 2014-04-08 0.03 0.0004 < 0.03
[+] Expand Test Data
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.1 0.0103 < 0.1
2014 2014-09-05 0.1 0.0103 < 0.1
2014 2014-09-05 0.1 0.0103 < 0.1
2014 2014-09-05 0.1 0.0103 < 0.1
2014 2014-09-04 0.1 0.0103 < 0.1
2014 2014-09-04 0.1 0.0103 < 0.1
2014 2014-09-04 0.1 0.0103 < 0.1
2014 2014-09-04 0.1 0.0103 < 0.1
2014 2014-04-23 0.1 0.0103 < 0.1
2014 2014-04-23 0.1 0.0103 < 0.1
2014 2014-04-23 0.1 0.0103 < 0.1
2014 2014-04-08 0.1 0.0103 < 0.1
2014 2014-04-08 0.1 0.0103 < 0.1
2014 2014-04-08 0.1 0.0103 < 0.1
2014 2014-04-08 0.1 0.0103 < 0.1
2014 2014-04-08 0.1 0.0103 < 0.1
[+] Expand Test Data
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.2 140 < 0.2
2014 2014-09-05 0.2 140 < 0.2
2014 2014-09-05 0.2 140 < 0.2
2014 2014-09-05 0.2 140 < 0.2
2014 2014-09-04 0.2 140 < 0.2
2014 2014-09-04 0.2 140 < 0.2
2014 2014-09-04 0.2 140 < 0.2
2014 2014-09-04 0.2 140 < 0.2
2014 2014-04-23 0.2 140 < 0.2
2014 2014-04-23 0.2 140 < 0.2
2014 2014-04-23 0.2 140 < 0.2
2014 2014-04-08 0.2 140 < 0.2
2014 2014-04-08 0.2 140 < 0.2
2014 2014-04-08 0.2 140 < 0.2
2014 2014-04-08 0.2 140 < 0.2
2014 2014-04-08 0.2 140 < 0.2
[+] Expand Test Data
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.2 2.69 < 0.2
2014 2014-09-05 0.2 2.69 < 0.2
2014 2014-09-05 0.2 2.69 < 0.2
2014 2014-09-05 0.2 2.69 < 0.2
2014 2014-09-04 0.2 2.69 < 0.2
2014 2014-09-04 0.2 2.69 < 0.2
2014 2014-09-04 0.2 2.69 < 0.2
2014 2014-09-04 0.2 2.69 < 0.2
2014 2014-04-23 0.2 2.69 < 0.2
2014 2014-04-23 0.2 2.69 < 0.2
2014 2014-04-23 0.2 2.69 < 0.2
2014 2014-04-08 0.2 2.69 < 0.2
2014 2014-04-08 0.2 2.69 < 0.2
2014 2014-04-08 0.2 2.69 < 0.2
2014 2014-04-08 0.2 2.69 < 0.2
2014 2014-04-08 0.2 2.69 < 0.2
[+] Expand Test Data
chromium 0.2 100 0.5194 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.2 100 0.33
2014 2014-09-10 0.2 100 0.59
2014 2014-09-05 0.2 100 0.87
2014 2014-09-05 0.2 100 0.61
2014 2014-09-05 0.2 100 0.24
2014 2014-09-04 0.2 100 < 0.2
2014 2014-09-04 0.2 100 0.46
2014 2014-09-04 0.2 100 0.8
2014 2014-09-04 0.2 100 0.75
2014 2014-04-23 0.2 100 < 0.2
2014 2014-04-23 0.2 100 < 0.2
2014 2014-04-23 0.2 100 0.76
2014 2014-04-23 0.2 100 0.53
2014 2014-04-08 0.2 100 0.73
2014 2014-04-08 0.2 100 0.94
2014 2014-04-08 0.2 100 0.2
2014 2014-04-08 0.2 100 0.71
2014 2014-04-08 0.2 100 0.83
[+] Expand Test Data
chromium-6 0.03 0 0.5539 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.03 0 0.2
2014 2014-09-10 0.03 0 0.6
2014 2014-09-05 0.03 0 0.67
2014 2014-09-05 0.03 0 0.59
2014 2014-09-05 0.03 0 0.25
2014 2014-09-04 0.03 0 < 0.03
2014 2014-09-04 0.03 0 0.5
2014 2014-09-04 0.03 0 0.83
2014 2014-09-04 0.03 0 0.73
2014 2014-04-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 0.29
2014 2014-04-23 0.03 0 0.81
2014 2014-04-23 0.03 0 0.49
2014 2014-04-08 0.03 0 0.93
2014 2014-04-08 0.03 0 1.19
2014 2014-04-08 0.03 0 0.23
2014 2014-04-08 0.03 0 0.83
2014 2014-04-08 0.03 0 0.83
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 1 70 < 1
2014 2014-09-10 1 70 < 1
2014 2014-09-05 1 70 < 1
2014 2014-09-05 1 70 < 1
2014 2014-09-05 1 70 < 1
2014 2014-09-04 1 70 < 1
2014 2014-09-04 1 70 < 1
2014 2014-09-04 1 70 < 1
2014 2014-09-04 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-04-23 1 70 < 1
2014 2014-04-08 1 70 < 1
2014 2014-04-08 1 70 < 1
2014 2014-04-08 1 70 < 1
2014 2014-04-08 1 70 < 1
2014 2014-04-08 1 70 < 1
[+] Expand Test Data
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.06 90 < 0.06
2014 2014-09-05 0.06 90 < 0.06
2014 2014-09-05 0.06 90 < 0.06
2014 2014-09-05 0.06 90 < 0.06
2014 2014-09-04 0.06 90 < 0.06
2014 2014-09-04 0.06 90 < 0.06
2014 2014-09-04 0.06 90 < 0.06
2014 2014-09-04 0.06 90 < 0.06
2014 2014-04-23 0.06 90 < 0.06
2014 2014-04-23 0.06 90 < 0.06
2014 2014-04-23 0.06 90 < 0.06
2014 2014-04-08 0.06 90 < 0.06
2014 2014-04-08 0.06 90 < 0.06
2014 2014-04-08 0.06 90 < 0.06
2014 2014-04-08 0.06 90 < 0.06
2014 2014-04-08 0.06 90 < 0.06
[+] Expand Test Data
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.08 0 < 0.08
2014 2014-09-05 0.08 0 < 0.08
2014 2014-09-05 0.08 0 < 0.08
2014 2014-09-05 0.08 0 < 0.08
2014 2014-09-04 0.08 0 < 0.08
2014 2014-09-04 0.08 0 < 0.08
2014 2014-09-04 0.08 0 < 0.08
2014 2014-09-04 0.08 0 < 0.08
2014 2014-04-23 0.08 0 < 0.08
2014 2014-04-23 0.08 0 < 0.08
2014 2014-04-23 0.08 0 < 0.08
2014 2014-04-08 0.08 0 < 0.08
2014 2014-04-08 0.08 0 < 0.08
2014 2014-04-08 0.08 0 < 0.08
2014 2014-04-08 0.08 0 < 0.08
2014 2014-04-08 0.08 0 < 0.08
[+] Expand Test Data
molybdenum 1 40 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 1 40 < 1
2014 2014-09-10 1 40 < 1
2014 2014-09-05 1 40 < 1
2014 2014-09-05 1 40 < 1
2014 2014-09-05 1 40 < 1
2014 2014-09-04 1 40 < 1
2014 2014-09-04 1 40 < 1
2014 2014-09-04 1 40 < 1
2014 2014-09-04 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-04-23 1 40 < 1
2014 2014-04-08 1 40 < 1
2014 2014-04-08 1 40 < 1
2014 2014-04-08 1 40 < 1
2014 2014-04-08 1 40 < 1
2014 2014-04-08 1 40 < 1
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.09 0 < 0.09
2014 2014-09-05 0.09 0 < 0.09
2014 2014-09-05 0.09 0 < 0.09
2014 2014-09-05 0.09 0 < 0.09
2014 2014-09-04 0.09 0 < 0.09
2014 2014-09-04 0.09 0 < 0.09
2014 2014-09-04 0.09 0 < 0.09
2014 2014-09-04 0.09 0 < 0.09
2014 2014-05-23 0.09 0 < 0.09
2014 2014-04-23 0.09 0 < 0.09
2014 2014-04-23 0.09 0 < 0.09
2014 2014-04-23 0.09 0 < 0.09
2014 2014-04-08 0.09 0 < 0.09
2014 2014-04-08 0.09 0 < 0.09
2014 2014-04-08 0.09 0 < 0.09
2014 2014-04-08 0.09 0 < 0.09
[+] Expand Test Data
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.01 0 < 0.01
2014 2014-09-05 0.01 0 < 0.01
2014 2014-09-05 0.01 0 < 0.01
2014 2014-09-05 0.01 0 < 0.01
2014 2014-09-04 0.01 0 < 0.01
2014 2014-09-04 0.01 0 < 0.01
2014 2014-09-04 0.01 0 < 0.01
2014 2014-09-04 0.01 0 < 0.01
2014 2014-05-23 0.01 0 < 0.01
2014 2014-04-23 0.01 0 < 0.01
2014 2014-04-23 0.01 0 < 0.01
2014 2014-04-23 0.01 0 < 0.01
2014 2014-04-08 0.01 0 < 0.01
2014 2014-04-08 0.01 0 < 0.01
2014 2014-04-08 0.01 0 < 0.01
2014 2014-04-08 0.01 0 < 0.01
[+] Expand Test Data
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.03 0 < 0.03
2014 2014-09-05 0.03 0 < 0.03
2014 2014-09-05 0.03 0 < 0.03
2014 2014-09-05 0.03 0 < 0.03
2014 2014-09-04 0.03 0 < 0.03
2014 2014-09-04 0.03 0 < 0.03
2014 2014-09-04 0.03 0 < 0.03
2014 2014-09-04 0.03 0 < 0.03
2014 2014-05-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 < 0.03
2014 2014-04-23 0.03 0 < 0.03
2014 2014-04-08 0.03 0 < 0.03
2014 2014-04-08 0.03 0 < 0.03
2014 2014-04-08 0.03 0 < 0.03
2014 2014-04-08 0.03 0 < 0.03
[+] Expand Test Data
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.02 0 < 0.02
2014 2014-09-05 0.02 0 < 0.02
2014 2014-09-05 0.02 0 < 0.02
2014 2014-09-05 0.02 0 < 0.02
2014 2014-09-04 0.02 0 < 0.02
2014 2014-09-04 0.02 0 < 0.02
2014 2014-09-04 0.02 0 < 0.02
2014 2014-09-04 0.02 0 < 0.02
2014 2014-05-23 0.02 0 < 0.02
2014 2014-04-23 0.02 0 < 0.02
2014 2014-04-23 0.02 0 < 0.02
2014 2014-04-23 0.02 0 < 0.02
2014 2014-04-08 0.02 0 < 0.02
2014 2014-04-08 0.02 0 < 0.02
2014 2014-04-08 0.02 0 < 0.02
2014 2014-04-08 0.02 0 < 0.02
[+] Expand Test Data
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.02 0.07 < 0.02
2014 2014-09-05 0.02 0.07 < 0.02
2014 2014-09-05 0.02 0.07 < 0.02
2014 2014-09-05 0.02 0.07 < 0.02
2014 2014-09-04 0.02 0.07 < 0.02
2014 2014-09-04 0.02 0.07 < 0.02
2014 2014-09-04 0.02 0.07 < 0.02
2014 2014-09-04 0.02 0.07 < 0.02
2014 2014-05-23 0.02 0.07 < 0.02
2014 2014-04-23 0.02 0.07 < 0.02
2014 2014-04-23 0.02 0.07 < 0.02
2014 2014-04-23 0.02 0.07 < 0.02
2014 2014-04-08 0.02 0.07 < 0.02
2014 2014-04-08 0.02 0.07 < 0.02
2014 2014-04-08 0.02 0.07 < 0.02
2014 2014-04-08 0.02 0.07 < 0.02
[+] Expand Test Data
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.04 0.07 < 0.04
2014 2014-09-05 0.04 0.07 < 0.04
2014 2014-09-05 0.04 0.07 < 0.04
2014 2014-09-05 0.04 0.07 < 0.04
2014 2014-09-04 0.04 0.07 < 0.04
2014 2014-09-04 0.04 0.07 < 0.04
2014 2014-09-04 0.04 0.07 < 0.04
2014 2014-09-04 0.04 0.07 < 0.04
2014 2014-05-23 0.04 0.07 < 0.04
2014 2014-04-23 0.04 0.07 < 0.04
2014 2014-04-23 0.04 0.07 < 0.04
2014 2014-04-23 0.04 0.07 < 0.04
2014 2014-04-08 0.04 0.07 < 0.04
2014 2014-04-08 0.04 0.07 < 0.04
2014 2014-04-08 0.04 0.07 < 0.04
2014 2014-04-08 0.04 0.07 < 0.04
[+] Expand Test Data
strontium 0.3 1500 72.9 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.3 1500 70.9
2014 2014-09-10 0.3 1500 74
2014 2014-09-05 0.3 1500 53.7
2014 2014-09-05 0.3 1500 33.8
2014 2014-09-05 0.3 1500 110
2014 2014-09-04 0.3 1500 115
2014 2014-09-04 0.3 1500 127
2014 2014-09-04 0.3 1500 54.7
2014 2014-09-04 0.3 1500 45.9
2014 2014-04-23 0.3 1500 94.2
2014 2014-04-23 0.3 1500 88.8
2014 2014-04-23 0.3 1500 52.3
2014 2014-04-23 0.3 1500 118
2014 2014-04-08 0.3 1500 45.3
2014 2014-04-08 0.3 1500 44.9
2014 2014-04-08 0.3 1500 59.6
2014 2014-04-08 0.3 1500 57.1
2014 2014-04-08 0.3 1500 67
[+] Expand Test Data
vanadium 0.2 21 0.0522 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-11-20 0.2 21 < 0.2
2014 2014-09-10 0.2 21 < 0.2
2014 2014-09-05 0.2 21 0.39
2014 2014-09-05 0.2 21 < 0.2
2014 2014-09-05 0.2 21 < 0.2
2014 2014-09-04 0.2 21 < 0.2
2014 2014-09-04 0.2 21 < 0.2
2014 2014-09-04 0.2 21 < 0.2
2014 2014-09-04 0.2 21 < 0.2
2014 2014-04-23 0.2 21 < 0.2
2014 2014-04-23 0.2 21 < 0.2
2014 2014-04-23 0.2 21 < 0.2
2014 2014-04-23 0.2 21 < 0.2
2014 2014-04-08 0.2 21 0.27
2014 2014-04-08 0.2 21 0.28
2014 2014-04-08 0.2 21 < 0.2
2014 2014-04-08 0.2 21 < 0.2
2014 2014-04-08 0.2 21 < 0.2
[+] Expand Test Data

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 level. Lead and copper can be — and often are — deposited in drinking water in between the water facility and your tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
NY120568 lead 2014-01-01 2016-12-31 0.001mg/L
NY95766 lead 2011-01-01 2013-12-31 0.001mg/L
NY66637 lead 2008-01-01 2010-12-31 0.001mg/L

Violations

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

Compliance Dates Rule Violation Type Contaminant Name Status
2012-10-01 - 2012-12-31 Synthetic Organic Chemicals Monitoring, Regular Heptachlor epoxide Returned to Compliance
2003-01-01 - 2003-12-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2002-11-01 - 2002-11-30 Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known

Local Water Testing

Find a lab in your area so you can get your tap or well water tested. This list contains both governmental and private labs, all of which are EPA-certified for drinking water testing.

Lab Location Zip Code
THE METRO GROUP INC LONG ISLAND CITY, NY 11101
THE METRO GROUP, INC. LONG ISLAND CITY, NY 11101
ADVANCED ANALYTICAL TECHNOLOGIES ORANGEBURG, NY 10962

Water Bill Information

Convenient information about your water service.

Unable to identify any billing information about Wa Of Great Neck North (NY2902841).

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.