Warminster Municipal Authority 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: PA1090069
Type: Community water system
EPA Region: 03
Primary Service Area: Residential Area
Primary Source: Surface water purchased
Population Served: 40,000 		Contact Information
WARMINSTER MUNICIPAL AUTHORITY
TIM HAGEY
P O BOX 2279
WARMINSTER, PA 18974

This public water system services 1 municipality in 1 county.

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   (4) 2014   (5) 2015   (0) 2016   (0) 2017   (0) 2018   (0)
PFOA
PFOS
1,4-dioxane
strontium 		chlorate
PFOA
PFOS
1,4-dioxane
strontium

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).

chlorate

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-08-19 20 210 124
2014 2014-08-19 20 210 < 20
2014 2014-06-09 20 210 63.5
2014 2014-05-20 20 210 215
2014 2014-05-20 20 210 24.8
2014 2014-05-20 20 210 < 20
2014 2014-05-20 20 210 101
2014 2014-05-20 20 210 97.3
2014 2014-05-20 20 210 < 20
2014 2014-05-20 20 210 < 20
2014 2014-05-20 20 210 < 20
2014 2014-05-20 20 210 199
2014 2014-05-20 20 210 58.6
2014 2014-05-20 20 210 142
2014 2014-05-20 20 210 < 20
2014 2014-05-20 20 210 23.1
2014 2014-05-20 20 210 < 20
2014 2014-05-20 20 210 < 20
2014 2014-05-20 20 210 150
2014 2014-05-20 20 210 24.7
2014 2014-05-20 20 210 < 20
2014 2014-05-20 20 210 49
2014 2014-05-20 20 210 26.2
2014 2014-02-19 20 210 < 20
2014 2014-02-19 20 210 127
2013 2013-11-20 20 210 200
2013 2013-11-20 20 210 < 20
2013 2013-11-20 20 210 < 20
2013 2013-11-19 20 210 104
2013 2013-11-19 20 210 53.5
2013 2013-11-19 20 210 < 20
2013 2013-11-19 20 210 < 20
2013 2013-11-19 20 210 < 20
2013 2013-11-19 20 210 185
2013 2013-11-19 20 210 55.2
2013 2013-11-19 20 210 195
2013 2013-11-19 20 210 < 20
2013 2013-11-19 20 210 27.1
2013 2013-11-19 20 210 < 20
2013 2013-11-19 20 210 < 20
2013 2013-11-19 20 210 135
2013 2013-11-19 20 210 41.3
2013 2013-11-19 20 210 < 20
2013 2013-11-19 20 210 53.3
2013 2013-11-19 20 210 56.2
2013 2013-11-19 20 210 31.2

PFOA

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-08-19 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 0.0822
2014 2014-06-09 0.02 0.07 0.0796
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 0.0216
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 0.349
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 0.0201
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-06-09 0.02 0.07 < 0.02
2014 2014-03-13 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 0.0885
2013 2013-11-19 0.02 0.07 0.122
2013 2013-11-19 0.02 0.07 0.0228
2013 2013-11-19 0.02 0.07 0.0246
2013 2013-11-19 0.02 0.07 0.0343
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 0.291
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 0.0231
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 < 0.02
2013 2013-11-19 0.02 0.07 0.0203
2013 2013-11-19 0.02 0.07 < 0.02

PFOS

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-08-19 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 0.176
2014 2014-06-09 0.04 0.07 0.138
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 0.0413
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 1.09
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-06-09 0.04 0.07 < 0.04
2014 2014-03-13 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 0.193
2013 2013-11-19 0.04 0.07 0.16
2013 2013-11-19 0.04 0.07 0.0553
2013 2013-11-19 0.04 0.07 0.0645
2013 2013-11-19 0.04 0.07 0.0576
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 0.791
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04
2013 2013-11-19 0.04 0.07 < 0.04

1,4-dioxane

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-08-19 0.07 0.35 < 0.07
2014 2014-06-09 0.07 0.35 0.17
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-05-20 0.07 0.35 0.15
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-05-20 0.07 0.35 0.07
2014 2014-05-20 0.07 0.35 0.073
2014 2014-05-20 0.07 0.35 0.081
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-05-20 0.07 0.35 1.2
2014 2014-05-20 0.07 0.35 0.077
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-05-20 0.07 0.35 0.15
2014 2014-05-20 0.07 0.35 0.081
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-05-20 0.07 0.35 < 0.07
2014 2014-02-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 0.17
2013 2013-11-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 0.13
2013 2013-11-19 0.07 0.35 0.12
2013 2013-11-19 0.07 0.35 0.1
2013 2013-11-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 1.4
2013 2013-11-19 0.07 0.35 0.078
2013 2013-11-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 0.2
2013 2013-11-19 0.07 0.35 0.07
2013 2013-11-19 0.07 0.35 0.13
2013 2013-11-19 0.07 0.35 < 0.07
2013 2013-11-19 0.07 0.35 < 0.07

strontium

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-08-19 0.3 1500 547
2014 2014-08-19 0.3 1500 116
2014 2014-06-09 0.3 1500 384
2014 2014-05-20 0.3 1500 629
2014 2014-05-20 0.3 1500 559
2014 2014-05-20 0.3 1500 586
2014 2014-05-20 0.3 1500 144
2014 2014-05-20 0.3 1500 286
2014 2014-05-20 0.3 1500 663
2014 2014-05-20 0.3 1500 111
2014 2014-05-20 0.3 1500 562
2014 2014-05-20 0.3 1500 592
2014 2014-05-20 0.3 1500 147
2014 2014-05-20 0.3 1500 424
2014 2014-05-20 0.3 1500 724
2014 2014-05-20 0.3 1500 412
2014 2014-05-20 0.3 1500 2870
2014 2014-05-20 0.3 1500 366
2014 2014-05-20 0.3 1500 594
2014 2014-05-20 0.3 1500 592
2014 2014-05-20 0.3 1500 1090
2014 2014-05-20 0.3 1500 492
2014 2014-05-20 0.3 1500 1160
2014 2014-02-19 0.3 1500 565
2014 2014-02-19 0.3 1500 178
2013 2013-11-20 0.3 1500 509
2013 2013-11-20 0.3 1500 454
2013 2013-11-20 0.3 1500 517
2013 2013-11-19 0.3 1500 106
2013 2013-11-19 0.3 1500 3.7
2013 2013-11-19 0.3 1500 515
2013 2013-11-19 0.3 1500 136
2013 2013-11-19 0.3 1500 478
2013 2013-11-19 0.3 1500 462
2013 2013-11-19 0.3 1500 205
2013 2013-11-19 0.3 1500 341
2013 2013-11-19 0.3 1500 760
2013 2013-11-19 0.3 1500 380
2013 2013-11-19 0.3 1500 2280
2013 2013-11-19 0.3 1500 415
2013 2013-11-19 0.3 1500 560
2013 2013-11-19 0.3 1500 541
2013 2013-11-19 0.3 1500 977
2013 2013-11-19 0.3 1500 430
2013 2013-11-19 0.3 1500 422
2013 2013-11-19 0.3 1500 991

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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
chromium 0.2 100 0.3213 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.2 100 0.27
2014 2014-08-19 0.2 100 0.38
2014 2014-06-09 0.2 100 0.27
2014 2014-05-20 0.2 100 0.32
2014 2014-05-20 0.2 100 0.4
2014 2014-05-20 0.2 100 0.23
2014 2014-05-20 0.2 100 0.29
2014 2014-05-20 0.2 100 0.36
2014 2014-05-20 0.2 100 0.51
2014 2014-05-20 0.2 100 0.35
2014 2014-05-20 0.2 100 0.25
2014 2014-05-20 0.2 100 0.26
2014 2014-05-20 0.2 100 0.42
2014 2014-05-20 0.2 100 0.33
2014 2014-05-20 0.2 100 0.39
2014 2014-05-20 0.2 100 0.32
2014 2014-05-20 0.2 100 < 0.2
2014 2014-05-20 0.2 100 0.21
2014 2014-05-20 0.2 100 0.24
2014 2014-05-20 0.2 100 0.41
2014 2014-05-20 0.2 100 0.24
2014 2014-05-20 0.2 100 0.26
2014 2014-05-20 0.2 100 0.2
2014 2014-02-19 0.2 100 0.21
2014 2014-02-19 0.2 100 0.29
2013 2013-11-20 0.2 100 0.29
2013 2013-11-20 0.2 100 0.52
2013 2013-11-20 0.2 100 0.35
2013 2013-11-19 0.2 100 0.29
2013 2013-11-19 0.2 100 0.39
2013 2013-11-19 0.2 100 0.55
2013 2013-11-19 0.2 100 0.45
2013 2013-11-19 0.2 100 0.28
2013 2013-11-19 0.2 100 0.42
2013 2013-11-19 0.2 100 0.4
2013 2013-11-19 0.2 100 0.31
2013 2013-11-19 0.2 100 0.29
2013 2013-11-19 0.2 100 0.41
2013 2013-11-19 0.2 100 0.26
2013 2013-11-19 0.2 100 0.34
2013 2013-11-19 0.2 100 0.29
2013 2013-11-19 0.2 100 0.37
2013 2013-11-19 0.2 100 0.34
2013 2013-11-19 0.2 100 0.29
2013 2013-11-19 0.2 100 0.3
2013 2013-11-19 0.2 100 0.23
[+] Expand Test Data
chromium-6 0.03 0 0.0895 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.03 0 0.041
2014 2014-08-19 0.03 0 0.11
2014 2014-06-09 0.03 0 0.055
2014 2014-05-20 0.03 0 0.085
2014 2014-05-20 0.03 0 0.19
2014 2014-05-20 0.03 0 0.047
2014 2014-05-20 0.03 0 0.09
2014 2014-05-20 0.03 0 0.17
2014 2014-05-20 0.03 0 0.29
2014 2014-05-20 0.03 0 0.19
2014 2014-05-20 0.03 0 < 0.03
2014 2014-05-20 0.03 0 0.074
2014 2014-05-20 0.03 0 0.13
2014 2014-05-20 0.03 0 0.081
2014 2014-05-20 0.03 0 0.038
2014 2014-05-20 0.03 0 0.12
2014 2014-05-20 0.03 0 < 0.03
2014 2014-05-20 0.03 0 0.057
2014 2014-05-20 0.03 0 0.074
2014 2014-05-20 0.03 0 0.069
2014 2014-05-20 0.03 0 0.064
2014 2014-05-20 0.03 0 0.083
2014 2014-05-20 0.03 0 0.039
2014 2014-02-19 0.03 0 0.045
2014 2014-02-19 0.03 0 0.067
2013 2013-11-20 0.03 0 0.083
2013 2013-11-20 0.03 0 0.29
2013 2013-11-20 0.03 0 0.042
2013 2013-11-19 0.03 0 0.077
2013 2013-11-19 0.03 0 0.089
2013 2013-11-19 0.03 0 0.3
2013 2013-11-19 0.03 0 0.12
2013 2013-11-19 0.03 0 0.037
2013 2013-11-19 0.03 0 0.077
2013 2013-11-19 0.03 0 0.1
2013 2013-11-19 0.03 0 0.079
2013 2013-11-19 0.03 0 0.037
2013 2013-11-19 0.03 0 0.12
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 0.063
2013 2013-11-19 0.03 0 0.072
2013 2013-11-19 0.03 0 0.079
2013 2013-11-19 0.03 0 0.067
2013 2013-11-19 0.03 0 0.061
2013 2013-11-19 0.03 0 0.077
2013 2013-11-19 0.03 0 0.039
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 1 70 < 1
2014 2014-08-19 1 70 < 1
2014 2014-06-09 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-05-20 1 70 < 1
2014 2014-02-19 1 70 < 1
2014 2014-02-19 1 70 < 1
2013 2013-11-20 1 70 < 1
2013 2013-11-20 1 70 < 1
2013 2013-11-20 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
2013 2013-11-19 1 70 < 1
[+] Expand Test Data
molybdenum 1 40 0.8891 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 1 40 < 1
2014 2014-08-19 1 40 < 1
2014 2014-06-09 1 40 8.2
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 1.6
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 3.1
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 2
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 2.7
2014 2014-05-20 1 40 1.2
2014 2014-05-20 1 40 3.9
2014 2014-05-20 1 40 < 1
2014 2014-05-20 1 40 1.8
2014 2014-02-19 1 40 < 1
2014 2014-02-19 1 40 1.7
2013 2013-11-20 1 40 < 1
2013 2013-11-20 1 40 < 1
2013 2013-11-20 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 3.1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 1.9
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 3.2
2013 2013-11-19 1 40 1.1
2013 2013-11-19 1 40 3.5
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 < 1
2013 2013-11-19 1 40 1.9
[+] Expand Test Data
vanadium 0.2 21 0.8741 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.2 21 0.51
2014 2014-08-19 0.2 21 0.51
2014 2014-06-09 0.2 21 0.83
2014 2014-05-20 0.2 21 0.93
2014 2014-05-20 0.2 21 0.7
2014 2014-05-20 0.2 21 0.46
2014 2014-05-20 0.2 21 < 0.2
2014 2014-05-20 0.2 21 0.53
2014 2014-05-20 0.2 21 0.79
2014 2014-05-20 0.2 21 0.49
2014 2014-05-20 0.2 21 0.56
2014 2014-05-20 0.2 21 1
2014 2014-05-20 0.2 21 0.6
2014 2014-05-20 0.2 21 0.51
2014 2014-05-20 0.2 21 0.53
2014 2014-05-20 0.2 21 4
2014 2014-05-20 0.2 21 1.3
2014 2014-05-20 0.2 21 0.68
2014 2014-05-20 0.2 21 0.75
2014 2014-05-20 0.2 21 1.4
2014 2014-05-20 0.2 21 1.7
2014 2014-05-20 0.2 21 0.73
2014 2014-05-20 0.2 21 0.99
2014 2014-02-19 0.2 21 0.5
2014 2014-02-19 0.2 21 < 0.2
2013 2013-11-20 0.2 21 0.83
2013 2013-11-20 0.2 21 0.64
2013 2013-11-20 0.2 21 0.48
2013 2013-11-19 0.2 21 < 0.2
2013 2013-11-19 0.2 21 0.71
2013 2013-11-19 0.2 21 0.79
2013 2013-11-19 0.2 21 0.55
2013 2013-11-19 0.2 21 0.59
2013 2013-11-19 0.2 21 0.93
2013 2013-11-19 0.2 21 0.63
2013 2013-11-19 0.2 21 0.47
2013 2013-11-19 0.2 21 0.53
2013 2013-11-19 0.2 21 3.8
2013 2013-11-19 0.2 21 1.2
2013 2013-11-19 0.2 21 0.75
2013 2013-11-19 0.2 21 0.82
2013 2013-11-19 0.2 21 1.3
2013 2013-11-19 0.2 21 1.7
2013 2013-11-19 0.2 21 0.84
2013 2013-11-19 0.2 21 0.73
2013 2013-11-19 0.2 21 0.92
[+] Expand Test Data
1,1-dichloroethane 0.03 6.14 0.0062 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.03 6.14 < 0.03
2014 2014-06-09 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 0.046
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 0.063
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 0.031
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-05-20 0.03 6.14 < 0.03
2014 2014-02-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 0.045
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 0.052
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 0.03 6.14 < 0.03
2013 2013-11-19 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 2014-08-19 0.03 0.0004 < 0.03
2014 2014-06-09 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-05-20 0.03 0.0004 < 0.03
2014 2014-02-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 0.03 0.0004 < 0.03
2013 2013-11-19 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 2014-08-19 0.1 0.0103 < 0.1
2014 2014-06-09 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-05-20 0.1 0.0103 < 0.1
2014 2014-02-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 0.1 0.0103 < 0.1
2013 2013-11-19 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 2014-08-19 0.2 140 < 0.2
2014 2014-06-09 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-05-20 0.2 140 < 0.2
2014 2014-02-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 0.2 140 < 0.2
2013 2013-11-19 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 2014-08-19 0.2 2.69 < 0.2
2014 2014-06-09 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-05-20 0.2 2.69 < 0.2
2014 2014-02-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
2013 2013-11-19 0.2 2.69 < 0.2
[+] Expand Test Data
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.06 90 < 0.06
2014 2014-06-09 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-05-20 0.06 90 < 0.06
2014 2014-02-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
2013 2013-11-19 0.06 90 < 0.06
[+] Expand Test Data
HCFC-22 0.08 0 0.0039 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.08 0 < 0.08
2014 2014-06-09 0.08 0 < 0.08
2014 2014-06-09 0.08 0 < 0.08
2014 2014-06-09 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-05-20 0.08 0 < 0.08
2014 2014-02-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 0.15
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
2013 2013-11-19 0.08 0 < 0.08
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-06-09 0.09 0 < 0.09
2014 2014-03-13 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
2013 2013-11-19 0.09 0 < 0.09
[+] Expand Test Data
PFHpA 0.01 0 0.0058 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 0.0239
2014 2014-06-09 0.01 0 0.0159
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 0.071
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-06-09 0.01 0 < 0.01
2014 2014-03-13 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 0.0238
2013 2013-11-19 0.01 0 0.0199
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 0.0105
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 0.0561
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
2013 2013-11-19 0.01 0 < 0.01
[+] Expand Test Data
PFHxS 0.03 0 0.0301 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-08-19 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 0.0761
2014 2014-06-09 0.03 0 0.0595
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 0.389
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-06-09 0.03 0 < 0.03
2014 2014-03-13 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 0.1
2013 2013-11-19 0.03 0 0.0879
2013 2013-11-19 0.03 0 0.0311
2013 2013-11-19 0.03 0 0.0359
2013 2013-11-19 0.03 0 0.0308
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 0.334
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 0.03 0 < 0.03
2013 2013-11-19 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 2014-08-19 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-06-09 0.02 0 < 0.02
2014 2014-03-13 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
2013 2013-11-19 0.02 0 < 0.02
[+] 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
PBCU06201900002 lead 2019-01-01 2019-06-30 0.003mg/L
PBCU06201714030 lead 2017-01-01 2017-06-30 0.0038mg/L
PBCU09201600052 lead 2016-06-01 2016-09-30 0.0037mg/L
PBCU09201300050 lead 2013-06-01 2013-09-30 0.00255mg/L
6882716 lead 2010-01-01 2010-12-31 0.0045mg/L

Violations

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

Compliance Dates Rule Violation Type Contaminant Name Status
2016-10-01 - 2016-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chlorine Returned to Compliance
2016-11-01 - 2016-11-30 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Unfilt/GWR) Surface Water Treatment Rule Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
2007-01-01 - 2007-12-31 Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
2005-07-01 - 2005-09-30 Radionuclides Monitoring, Regular Gross Alpha, Excl. Radon and U Returned to Compliance
2005-07-01 - 2005-09-30 Radionuclides Monitoring, Regular Radium-226 Returned to Compliance
2005-07-01 - 2005-09-30 Radionuclides Monitoring, Regular Radium-228 Returned to Compliance
2004-10-01 - 2004-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2004-10-01 - 2004-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2004-09-01 - 2004-09-30 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2004-09-01 - 2004-09-30 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Unfilt/GWR) Surface Water Treatment Rule Returned to Compliance
2004-03-01 - 2004-03-31 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2004-01-01 - 2004-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chlorine Returned to Compliance
2004-03-01 - 2004-03-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Unfilt/GWR) Surface Water Treatment Rule Returned to Compliance
2004-02-01 - 2004-02-29 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2003-10-01 - 2003-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chlorine Returned to Compliance
2003-10-01 - 2003-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2003-10-01 - 2003-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular Atrazine Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular Benzo(a)pyrene Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular OXAMYL Returned to Compliance
2003-01-01 - 2003-12-31 Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
2003-12-01 - 2003-12-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Unfilt/GWR) Surface Water Treatment Rule Returned to Compliance
2003-07-01 - 2003-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2003-07-01 - 2003-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2003-08-01 - 2003-08-31 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2003-04-01 - 2003-06-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2003-04-01 - 2003-06-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2003-01-01 - 2003-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2003-01-01 - 2003-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2002-10-01 - 2002-12-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2001-03-01 - 2001-03-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Unfilt/GWR) Surface Water Treatment Rule Returned to Compliance
2000-01-01 - 2000-12-31 Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
2000-01-01 - 2000-12-31 Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Returned to Compliance
2000-01-01 - 2000-12-31 Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
2000-01-01 - 2000-12-31 Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
2000-01-01 - 2000-12-31 Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Returned to Compliance
2000-01-01 - 2000-12-31 Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
2000-01-01 - 2000-03-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
- N/A Volatile Organic Chemicals Maximum Contaminant Level Violation, Average Tetrachloroethylene Returned to Compliance
- N/A Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Known
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Known
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Known
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Aldicarb Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Aldicarb Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Aldicarb Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Atrazine Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Atrazine Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Atrazine Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Atrazine Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Benzene Known
- N/A Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Known
- N/A Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Chlordane Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Chlordane Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Chlordane Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Chlordane Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Chlordane Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular LASSO Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Returned to Compliance
- N/A Nitrates Monitoring, Regular Nitrate Known
- N/A Nitrates Monitoring, Regular Nitrate Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular OXAMYL Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular OXAMYL Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular OXAMYL Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular OXAMYL Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular OXAMYL Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Known
- N/A Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
- N/A Synthetic Organic Chemicals Monitoring, Regular Simazine Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Vinyl chloride Known
- N/A Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
- N/A Surface Water Treatment Rule Monitoring of Treatment (SWTR-Unfilt/GWR) Surface Water Treatment Rule Returned to Compliance
- N/A Surface Water Treatment Rule Monitoring of Treatment (SWTR-Unfilt/GWR) Surface Water Treatment Rule Returned to Compliance
- N/A Surface Water Treatment Rule Monitoring of Treatment (SWTR-Unfilt/GWR) Surface Water Treatment Rule Returned to Compliance
2016-06-01 - N/A Revised Total Coliform Rule Report Sample Result/Fail Monitor (RTCR) Revised Total Coliform Rule Returned to Compliance
- N/A Lead and Copper Rule Follow-up Or Routine LCR Tap M/R Lead and Copper Rule Returned to Compliance
2017-01-01 - N/A Lead and Copper Rule Lead Consumer Notice Lead and Copper Rule Open
2003-10-01 - N/A Consumer Confidence Rule Consumer Confidence Report Inadequate Reporting Consumer Confidence Rule Returned to Compliance

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
EUROFINS ENVIRONMENT TESTING PHILADELPHIA, LLC HORSHAM, PA 19044

Water Bill Information

Convenient information about your water service.

Unable to identify any billing information about Warminster Municipal Authority (PA1090069).

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.