Sammamish Plateau Water & Sewer 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: WA5340900
Type: Community water system
EPA Region: 10
Primary Service Area: Residential Area
Primary Source: Ground water
Population Served: 54,468 		Contact Information
SAMMAMISH PLATEAU WATER & SEWER
Scott Jonas
1510 228th Ave SE
Sammamish, WA 98075

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   (0) 2014   (0) 2015   (0) 2016   (1) 2017   (0) 2018   (0)
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).

chlorate

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2016 2016-05-16 20 210 260
2016 2016-05-16 20 210 265
2015 2015-09-30 20 210 42
2015 2015-09-30 20 210 42.4
2015 2015-09-03 20 210 73
2015 2015-09-03 20 210 185
2015 2015-09-03 20 210 56.4
2015 2015-09-03 20 210 41.9
2015 2015-09-03 20 210 55.4
2015 2015-09-03 20 210 39.9
2015 2015-09-03 20 210 202
2015 2015-09-03 20 210 36
2015 2015-09-03 20 210 82.4
2015 2015-09-03 20 210 35.9
2015 2015-03-31 20 210 48.5
2015 2015-03-31 20 210 80.4
2015 2015-03-31 20 210 164
2015 2015-03-31 20 210 170
2015 2015-03-31 20 210 74.9
2015 2015-03-31 20 210 55.2
2015 2015-03-30 20 210 39.3
2015 2015-03-30 20 210 73.4
2015 2015-03-30 20 210 37.2
2015 2015-03-30 20 210 38.6
2015 2015-03-30 20 210 35.9
2015 2015-03-30 20 210 41.5
2015 2015-03-30 20 210 109
2015 2015-03-30 20 210 190

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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 0.0643 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.2 100 < 0.2
2016 2016-05-16 0.2 100 < 0.2
2015 2015-09-30 0.2 100 < 0.2
2015 2015-09-30 0.2 100 < 0.2
2015 2015-09-03 0.2 100 < 0.2
2015 2015-09-03 0.2 100 < 0.2
2015 2015-09-03 0.2 100 < 0.2
2015 2015-09-03 0.2 100 < 0.2
2015 2015-09-03 0.2 100 < 0.2
2015 2015-09-03 0.2 100 < 0.2
2015 2015-09-03 0.2 100 < 0.2
2015 2015-09-03 0.2 100 0.32
2015 2015-09-03 0.2 100 0.54
2015 2015-09-03 0.2 100 < 0.2
2015 2015-08-11 0.2 100 0.6
2015 2015-08-11 0.2 100 < 0.2
2015 2015-03-31 0.2 100 < 0.2
2015 2015-03-30 0.2 100 < 0.2
2015 2015-03-30 0.2 100 < 0.2
2015 2015-03-30 0.2 100 < 0.2
2015 2015-03-10 0.2 100 < 0.2
2015 2015-03-10 0.2 100 < 0.2
2015 2015-03-10 0.2 100 < 0.2
2015 2015-03-10 0.2 100 < 0.2
2015 2015-03-10 0.2 100 < 0.2
2015 2015-03-10 0.2 100 < 0.2
2015 2015-03-10 0.2 100 0.34
2015 2015-03-10 0.2 100 < 0.2
[+] Expand Test Data
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 1 70 < 1
2016 2016-05-16 1 70 < 1
2015 2015-09-30 1 70 < 1
2015 2015-09-30 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-09-03 1 70 < 1
2015 2015-03-31 1 70 < 1
2015 2015-03-31 1 70 < 1
2015 2015-03-30 1 70 < 1
2015 2015-03-30 1 70 < 1
2015 2015-03-30 1 70 < 1
2015 2015-03-30 1 70 < 1
2015 2015-03-10 1 70 < 1
2015 2015-03-10 1 70 < 1
2015 2015-03-10 1 70 < 1
2015 2015-03-10 1 70 < 1
2015 2015-03-10 1 70 < 1
2015 2015-03-10 1 70 < 1
2015 2015-03-10 1 70 < 1
2015 2015-03-10 1 70 < 1
[+] Expand Test Data
molybdenum 1 40 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 1 40 < 1
2016 2016-05-16 1 40 < 1
2015 2015-09-30 1 40 < 1
2015 2015-09-30 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-09-03 1 40 < 1
2015 2015-03-31 1 40 < 1
2015 2015-03-31 1 40 < 1
2015 2015-03-30 1 40 < 1
2015 2015-03-30 1 40 < 1
2015 2015-03-30 1 40 < 1
2015 2015-03-30 1 40 < 1
2015 2015-03-10 1 40 < 1
2015 2015-03-10 1 40 < 1
2015 2015-03-10 1 40 < 1
2015 2015-03-10 1 40 < 1
2015 2015-03-10 1 40 < 1
2015 2015-03-10 1 40 < 1
2015 2015-03-10 1 40 < 1
2015 2015-03-10 1 40 < 1
[+] Expand Test Data
strontium 0.3 1500 98.0714 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.3 1500 94.4
2016 2016-05-16 0.3 1500 93.5
2015 2015-09-30 0.3 1500 80
2015 2015-09-30 0.3 1500 80.6
2015 2015-09-03 0.3 1500 87.4
2015 2015-09-03 0.3 1500 92.7
2015 2015-09-03 0.3 1500 84.3
2015 2015-09-03 0.3 1500 154
2015 2015-09-03 0.3 1500 81.9
2015 2015-09-03 0.3 1500 182
2015 2015-09-03 0.3 1500 88.1
2015 2015-09-03 0.3 1500 88.6
2015 2015-09-03 0.3 1500 85.5
2015 2015-09-03 0.3 1500 180
2015 2015-03-31 0.3 1500 78
2015 2015-03-31 0.3 1500 73.9
2015 2015-03-30 0.3 1500 70.1
2015 2015-03-30 0.3 1500 67.4
2015 2015-03-30 0.3 1500 95.7
2015 2015-03-30 0.3 1500 199
2015 2015-03-10 0.3 1500 94.7
2015 2015-03-10 0.3 1500 93.3
2015 2015-03-10 0.3 1500 69.8
2015 2015-03-10 0.3 1500 71
2015 2015-03-10 0.3 1500 93.5
2015 2015-03-10 0.3 1500 90.3
2015 2015-03-10 0.3 1500 86.4
2015 2015-03-10 0.3 1500 89.9
[+] Expand Test Data
vanadium 0.2 21 0.9554 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.2 21 < 0.2
2016 2016-05-16 0.2 21 < 0.2
2015 2015-09-30 0.2 21 1.5
2015 2015-09-30 0.2 21 1.7
2015 2015-09-03 0.2 21 0.84
2015 2015-09-03 0.2 21 < 0.2
2015 2015-09-03 0.2 21 0.83
2015 2015-09-03 0.2 21 1.5
2015 2015-09-03 0.2 21 0.78
2015 2015-09-03 0.2 21 1.7
2015 2015-09-03 0.2 21 < 0.2
2015 2015-09-03 0.2 21 1.8
2015 2015-09-03 0.2 21 1.8
2015 2015-09-03 0.2 21 1.9
2015 2015-03-31 0.2 21 1.2
2015 2015-03-31 0.2 21 1.6
2015 2015-03-30 0.2 21 0.79
2015 2015-03-30 0.2 21 0.7
2015 2015-03-30 0.2 21 1.9
2015 2015-03-30 0.2 21 2.4
2015 2015-03-10 0.2 21 0.71
2015 2015-03-10 0.2 21 < 0.2
2015 2015-03-10 0.2 21 0.64
2015 2015-03-10 0.2 21 0.56
2015 2015-03-10 0.2 21 < 0.2
2015 2015-03-10 0.2 21 < 0.2
2015 2015-03-10 0.2 21 1.9
2015 2015-03-10 0.2 21 < 0.2
[+] Expand Test Data
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.03 6.14 < 0.03
2015 2015-09-30 0.03 6.14 < 0.03
2015 2015-09-03 0.03 6.14 < 0.03
2015 2015-09-03 0.03 6.14 < 0.03
2015 2015-09-03 0.03 6.14 < 0.03
2015 2015-09-03 0.03 6.14 < 0.03
2015 2015-09-03 0.03 6.14 < 0.03
2015 2015-03-31 0.03 6.14 < 0.03
2015 2015-03-31 0.03 6.14 < 0.03
2015 2015-03-31 0.03 6.14 < 0.03
2015 2015-03-30 0.03 6.14 < 0.03
2015 2015-03-30 0.03 6.14 < 0.03
2015 2015-03-30 0.03 6.14 < 0.03
2015 2015-03-30 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
2016 2016-05-16 0.03 0.0004 < 0.03
2015 2015-09-30 0.03 0.0004 < 0.03
2015 2015-09-03 0.03 0.0004 < 0.03
2015 2015-09-03 0.03 0.0004 < 0.03
2015 2015-09-03 0.03 0.0004 < 0.03
2015 2015-09-03 0.03 0.0004 < 0.03
2015 2015-09-03 0.03 0.0004 < 0.03
2015 2015-03-31 0.03 0.0004 < 0.03
2015 2015-03-31 0.03 0.0004 < 0.03
2015 2015-03-31 0.03 0.0004 < 0.03
2015 2015-03-30 0.03 0.0004 < 0.03
2015 2015-03-30 0.03 0.0004 < 0.03
2015 2015-03-30 0.03 0.0004 < 0.03
2015 2015-03-30 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
2016 2016-05-16 0.1 0.0103 < 0.1
2015 2015-09-30 0.1 0.0103 < 0.1
2015 2015-09-03 0.1 0.0103 < 0.1
2015 2015-09-03 0.1 0.0103 < 0.1
2015 2015-09-03 0.1 0.0103 < 0.1
2015 2015-09-03 0.1 0.0103 < 0.1
2015 2015-09-03 0.1 0.0103 < 0.1
2015 2015-03-31 0.1 0.0103 < 0.1
2015 2015-03-31 0.1 0.0103 < 0.1
2015 2015-03-31 0.1 0.0103 < 0.1
2015 2015-03-30 0.1 0.0103 < 0.1
2015 2015-03-30 0.1 0.0103 < 0.1
2015 2015-03-30 0.1 0.0103 < 0.1
2015 2015-03-30 0.1 0.0103 < 0.1
[+] Expand Test Data
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.07 0.35 < 0.07
2015 2015-09-30 0.07 0.35 < 0.07
2015 2015-09-03 0.07 0.35 < 0.07
2015 2015-09-03 0.07 0.35 < 0.07
2015 2015-09-03 0.07 0.35 < 0.07
2015 2015-09-03 0.07 0.35 < 0.07
2015 2015-09-03 0.07 0.35 < 0.07
2015 2015-03-31 0.07 0.35 < 0.07
2015 2015-03-31 0.07 0.35 < 0.07
2015 2015-03-31 0.07 0.35 < 0.07
2015 2015-03-30 0.07 0.35 < 0.07
2015 2015-03-30 0.07 0.35 < 0.07
2015 2015-03-30 0.07 0.35 < 0.07
2015 2015-03-30 0.07 0.35 < 0.07
[+] Expand Test Data
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-09-30 0.0009 0.035 < 0.0009
2015 2015-09-03 0.0009 0.035 < 0.0009
2015 2015-09-03 0.0009 0.035 < 0.0009
2015 2015-09-03 0.0009 0.035 < 0.0009
2015 2015-09-03 0.0009 0.035 < 0.0009
2015 2015-09-03 0.0009 0.035 < 0.0009
2015 2015-03-31 0.0009 0.035 < 0.0009
2015 2015-03-31 0.0009 0.035 < 0.0009
2015 2015-03-31 0.0009 0.035 < 0.0009
2015 2015-03-30 0.0009 0.035 < 0.0009
2015 2015-03-30 0.0009 0.035 < 0.0009
2015 2015-03-30 0.0009 0.035 < 0.0009
2015 2015-03-30 0.0009 0.035 < 0.0009
[+] Expand Test Data
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-09-30 0.0004 0.0009 < 0.0004
2015 2015-09-03 0.0004 0.0009 < 0.0004
2015 2015-09-03 0.0004 0.0009 < 0.0004
2015 2015-09-03 0.0004 0.0009 < 0.0004
2015 2015-09-03 0.0004 0.0009 < 0.0004
2015 2015-09-03 0.0004 0.0009 < 0.0004
2015 2015-03-31 0.0004 0.0009 < 0.0004
2015 2015-03-31 0.0004 0.0009 < 0.0004
2015 2015-03-31 0.0004 0.0009 < 0.0004
2015 2015-03-30 0.0004 0.0009 < 0.0004
2015 2015-03-30 0.0004 0.0009 < 0.0004
2015 2015-03-30 0.0004 0.0009 < 0.0004
2015 2015-03-30 0.0004 0.0009 < 0.0004
[+] Expand Test Data
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-09-30 0.0003 0 < 0.0003
2015 2015-09-03 0.0003 0 < 0.0003
2015 2015-09-03 0.0003 0 < 0.0003
2015 2015-09-03 0.0003 0 < 0.0003
2015 2015-09-03 0.0003 0 < 0.0003
2015 2015-09-03 0.0003 0 < 0.0003
2015 2015-03-31 0.0003 0 < 0.0003
2015 2015-03-31 0.0003 0 < 0.0003
2015 2015-03-31 0.0003 0 < 0.0003
2015 2015-03-30 0.0003 0 < 0.0003
2015 2015-03-30 0.0003 0 < 0.0003
2015 2015-03-30 0.0003 0 < 0.0003
2015 2015-03-30 0.0003 0 < 0.0003
[+] Expand Test Data
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.2 140 < 0.2
2015 2015-09-30 0.2 140 < 0.2
2015 2015-09-03 0.2 140 < 0.2
2015 2015-09-03 0.2 140 < 0.2
2015 2015-09-03 0.2 140 < 0.2
2015 2015-09-03 0.2 140 < 0.2
2015 2015-09-03 0.2 140 < 0.2
2015 2015-03-31 0.2 140 < 0.2
2015 2015-03-31 0.2 140 < 0.2
2015 2015-03-31 0.2 140 < 0.2
2015 2015-03-30 0.2 140 < 0.2
2015 2015-03-30 0.2 140 < 0.2
2015 2015-03-30 0.2 140 < 0.2
2015 2015-03-30 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
2016 2016-05-16 0.2 2.69 < 0.2
2015 2015-09-30 0.2 2.69 < 0.2
2015 2015-09-03 0.2 2.69 < 0.2
2015 2015-09-03 0.2 2.69 < 0.2
2015 2015-09-03 0.2 2.69 < 0.2
2015 2015-09-03 0.2 2.69 < 0.2
2015 2015-09-03 0.2 2.69 < 0.2
2015 2015-03-31 0.2 2.69 < 0.2
2015 2015-03-31 0.2 2.69 < 0.2
2015 2015-03-31 0.2 2.69 < 0.2
2015 2015-03-30 0.2 2.69 < 0.2
2015 2015-03-30 0.2 2.69 < 0.2
2015 2015-03-30 0.2 2.69 < 0.2
2015 2015-03-30 0.2 2.69 < 0.2
[+] Expand Test Data
chromium-6 0.03 0 0.1013 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.03 0 < 0.03
2016 2016-05-16 0.03 0 < 0.03
2015 2015-09-30 0.03 0 < 0.03
2015 2015-09-30 0.03 0 < 0.03
2015 2015-09-03 0.03 0 0.11
2015 2015-09-03 0.03 0 < 0.03
2015 2015-09-03 0.03 0 0.14
2015 2015-09-03 0.03 0 0.098
2015 2015-09-03 0.03 0 0.11
2015 2015-09-03 0.03 0 0.1
2015 2015-09-03 0.03 0 < 0.03
2015 2015-09-03 0.03 0 0.37
2015 2015-09-03 0.03 0 0.58
2015 2015-09-03 0.03 0 0.078
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-30 0.03 0 0.083
2015 2015-03-30 0.03 0 0.244
2015 2015-03-30 0.03 0 0.0408
2015 2015-03-30 0.03 0 < 0.03
2015 2015-03-30 0.03 0 0.043
2015 2015-03-30 0.03 0 0.27
2015 2015-03-30 0.03 0 0.57
2015 2015-03-30 0.03 0 < 0.03
[+] Expand Test Data
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-09-30 0.004 0.35 < 0.004
2015 2015-09-03 0.004 0.35 < 0.004
2015 2015-09-03 0.004 0.35 < 0.004
2015 2015-09-03 0.004 0.35 < 0.004
2015 2015-09-03 0.004 0.35 < 0.004
2015 2015-09-03 0.004 0.35 < 0.004
2015 2015-03-31 0.004 0.35 < 0.004
2015 2015-03-31 0.004 0.35 < 0.004
2015 2015-03-31 0.004 0.35 < 0.004
2015 2015-03-30 0.004 0.35 < 0.004
2015 2015-03-30 0.004 0.35 < 0.004
2015 2015-03-30 0.004 0.35 < 0.004
2015 2015-03-30 0.004 0.35 < 0.004
[+] Expand Test Data
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-09-30 0.0008 0.35 < 0.0008
2015 2015-09-03 0.0008 0.35 < 0.0008
2015 2015-09-03 0.0008 0.35 < 0.0008
2015 2015-09-03 0.0008 0.35 < 0.0008
2015 2015-09-03 0.0008 0.35 < 0.0008
2015 2015-09-03 0.0008 0.35 < 0.0008
2015 2015-03-31 0.0008 0.35 < 0.0008
2015 2015-03-31 0.0008 0.35 < 0.0008
2015 2015-03-31 0.0008 0.35 < 0.0008
2015 2015-03-30 0.0008 0.35 < 0.0008
2015 2015-03-30 0.0008 0.35 < 0.0008
2015 2015-03-30 0.0008 0.35 < 0.0008
2015 2015-03-30 0.0008 0.35 < 0.0008
[+] Expand Test Data
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-09-30 0.002 0.35 < 0.002
2015 2015-09-03 0.002 0.35 < 0.002
2015 2015-09-03 0.002 0.35 < 0.002
2015 2015-09-03 0.002 0.35 < 0.002
2015 2015-09-03 0.002 0.35 < 0.002
2015 2015-09-03 0.002 0.35 < 0.002
2015 2015-03-31 0.002 0.35 < 0.002
2015 2015-03-31 0.002 0.35 < 0.002
2015 2015-03-31 0.002 0.35 < 0.002
2015 2015-03-30 0.002 0.35 < 0.002
2015 2015-03-30 0.002 0.35 < 0.002
2015 2015-03-30 0.002 0.35 < 0.002
2015 2015-03-30 0.002 0.35 < 0.002
[+] Expand Test Data
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.06 90 < 0.06
2015 2015-09-30 0.06 90 < 0.06
2015 2015-09-03 0.06 90 < 0.06
2015 2015-09-03 0.06 90 < 0.06
2015 2015-09-03 0.06 90 < 0.06
2015 2015-09-03 0.06 90 < 0.06
2015 2015-09-03 0.06 90 < 0.06
2015 2015-03-31 0.06 90 < 0.06
2015 2015-03-31 0.06 90 < 0.06
2015 2015-03-31 0.06 90 < 0.06
2015 2015-03-30 0.06 90 < 0.06
2015 2015-03-30 0.06 90 < 0.06
2015 2015-03-30 0.06 90 < 0.06
2015 2015-03-30 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
2016 2016-05-16 0.08 0 < 0.08
2015 2015-09-30 0.08 0 < 0.08
2015 2015-09-03 0.08 0 < 0.08
2015 2015-09-03 0.08 0 < 0.08
2015 2015-09-03 0.08 0 < 0.08
2015 2015-09-03 0.08 0 < 0.08
2015 2015-09-03 0.08 0 < 0.08
2015 2015-03-31 0.08 0 < 0.08
2015 2015-03-31 0.08 0 < 0.08
2015 2015-03-31 0.08 0 < 0.08
2015 2015-03-30 0.08 0 < 0.08
2015 2015-03-30 0.08 0 < 0.08
2015 2015-03-30 0.08 0 < 0.08
2015 2015-03-30 0.08 0 < 0.08
[+] Expand Test Data
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.09 0 < 0.09
2015 2015-09-30 0.09 0 < 0.09
2015 2015-09-03 0.09 0 < 0.09
2015 2015-09-03 0.09 0 < 0.09
2015 2015-09-03 0.09 0 < 0.09
2015 2015-09-03 0.09 0 < 0.09
2015 2015-09-03 0.09 0 < 0.09
2015 2015-03-31 0.09 0 < 0.09
2015 2015-03-31 0.09 0 < 0.09
2015 2015-03-31 0.09 0 < 0.09
2015 2015-03-30 0.09 0 < 0.09
2015 2015-03-30 0.09 0 < 0.09
2015 2015-03-30 0.09 0 < 0.09
2015 2015-03-30 0.09 0 < 0.09
[+] Expand Test Data
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.01 0 < 0.01
2015 2015-09-30 0.01 0 < 0.01
2015 2015-09-03 0.01 0 < 0.01
2015 2015-09-03 0.01 0 < 0.01
2015 2015-09-03 0.01 0 < 0.01
2015 2015-09-03 0.01 0 < 0.01
2015 2015-09-03 0.01 0 < 0.01
2015 2015-03-31 0.01 0 < 0.01
2015 2015-03-31 0.01 0 < 0.01
2015 2015-03-31 0.01 0 < 0.01
2015 2015-03-30 0.01 0 < 0.01
2015 2015-03-30 0.01 0 < 0.01
2015 2015-03-30 0.01 0 < 0.01
2015 2015-03-30 0.01 0 < 0.01
[+] Expand Test Data
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.03 0 < 0.03
2015 2015-09-30 0.03 0 < 0.03
2015 2015-09-03 0.03 0 < 0.03
2015 2015-09-03 0.03 0 < 0.03
2015 2015-09-03 0.03 0 < 0.03
2015 2015-09-03 0.03 0 < 0.03
2015 2015-09-03 0.03 0 < 0.03
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-31 0.03 0 < 0.03
2015 2015-03-30 0.03 0 < 0.03
2015 2015-03-30 0.03 0 < 0.03
2015 2015-03-30 0.03 0 < 0.03
2015 2015-03-30 0.03 0 < 0.03
[+] Expand Test Data
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2016 2016-05-16 0.02 0 < 0.02
2015 2015-09-30 0.02 0 < 0.02
2015 2015-09-03 0.02 0 < 0.02
2015 2015-09-03 0.02 0 < 0.02
2015 2015-09-03 0.02 0 < 0.02
2015 2015-09-03 0.02 0 < 0.02
2015 2015-09-03 0.02 0 < 0.02
2015 2015-03-31 0.02 0 < 0.02
2015 2015-03-31 0.02 0 < 0.02
2015 2015-03-31 0.02 0 < 0.02
2015 2015-03-30 0.02 0 < 0.02
2015 2015-03-30 0.02 0 < 0.02
2015 2015-03-30 0.02 0 < 0.02
2015 2015-03-30 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
2016 2016-05-16 0.02 0.07 < 0.02
2015 2015-09-30 0.02 0.07 < 0.02
2015 2015-09-03 0.02 0.07 < 0.02
2015 2015-09-03 0.02 0.07 < 0.02
2015 2015-09-03 0.02 0.07 < 0.02
2015 2015-09-03 0.02 0.07 < 0.02
2015 2015-09-03 0.02 0.07 < 0.02
2015 2015-03-31 0.02 0.07 < 0.02
2015 2015-03-31 0.02 0.07 < 0.02
2015 2015-03-31 0.02 0.07 < 0.02
2015 2015-03-30 0.02 0.07 < 0.02
2015 2015-03-30 0.02 0.07 < 0.02
2015 2015-03-30 0.02 0.07 < 0.02
2015 2015-03-30 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
2016 2016-05-16 0.04 0.07 < 0.04
2015 2015-09-30 0.04 0.07 < 0.04
2015 2015-09-03 0.04 0.07 < 0.04
2015 2015-09-03 0.04 0.07 < 0.04
2015 2015-09-03 0.04 0.07 < 0.04
2015 2015-09-03 0.04 0.07 < 0.04
2015 2015-09-03 0.04 0.07 < 0.04
2015 2015-03-31 0.04 0.07 < 0.04
2015 2015-03-31 0.04 0.07 < 0.04
2015 2015-03-31 0.04 0.07 < 0.04
2015 2015-03-30 0.04 0.07 < 0.04
2015 2015-03-30 0.04 0.07 < 0.04
2015 2015-03-30 0.04 0.07 < 0.04
2015 2015-03-30 0.04 0.07 < 0.04
[+] Expand Test Data
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-09-30 0.0001 0 < 0.0001
2015 2015-09-03 0.0001 0 < 0.0001
2015 2015-09-03 0.0001 0 < 0.0001
2015 2015-09-03 0.0001 0 < 0.0001
2015 2015-09-03 0.0001 0 < 0.0001
2015 2015-09-03 0.0001 0 < 0.0001
2015 2015-03-31 0.0001 0 < 0.0001
2015 2015-03-31 0.0001 0 < 0.0001
2015 2015-03-31 0.0001 0 < 0.0001
2015 2015-03-30 0.0001 0 < 0.0001
2015 2015-03-30 0.0001 0 < 0.0001
2015 2015-03-30 0.0001 0 < 0.0001
2015 2015-03-30 0.0001 0 < 0.0001
[+] 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
3303529 lead 2014-01-01 2016-12-31 0.002mg/L
7754510 lead 2014-01-01 2016-12-31 0.002mg/L
2848041 lead 2011-01-01 2013-12-31 0.002mg/L
6308168 lead 2011-01-01 2013-12-31 0.002mg/L
4759762 lead 2008-01-01 2010-12-31 0.002mg/L

Violations

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

Compliance Dates Rule Violation Type Contaminant Name Status
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Antimony, Total Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Chromium Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular CYANIDE Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Cadmium Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Beryllium, Total Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Barium Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Fluoride Known
2011-01-01 - 2013-12-31 Arsenic Monitoring, Regular Arsenic Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Mercury Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Thallium, Total Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Nickel Known
2011-01-01 - 2013-12-31 Inorganic Chemicals Monitoring, Regular Selenium Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Picloram Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Toxaphene Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Simazine Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Dalapon Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) phthalate Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Dinoseb Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Endrin Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Methoxychlor Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Pentachlorophenol Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Heptachlor Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Heptachlor epoxide Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) adipate Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular HEXACHLOROBENZENE Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Hexachlorocyclopentadiene Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular LASSO Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Atrazine Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Chlordane Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular BHC-GAMMA Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular 2,4,5-TP Known
2008-01-01 - 2010-12-31 Synthetic Organic Chemicals Monitoring, Regular Benzo(a)pyrene Known
2009-01-01 - 2009-12-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2008-04-01 - 2008-06-30 Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Known
2008-04-01 - 2008-06-30 Synthetic Organic Chemicals Monitoring, Regular Diquat Known
2008-04-01 - 2008-06-30 Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Mercury Known
2005-01-01 - 2007-12-31 Arsenic Monitoring, Regular Arsenic Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Antimony, Total Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular CYANIDE Known
2007-10-01 - 2007-12-31 Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Nickel Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Selenium Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Thallium, Total Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Barium Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Fluoride Known
2007-10-01 - 2007-12-31 Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
2007-10-01 - 2007-12-31 Synthetic Organic Chemicals Monitoring, Regular Diquat Returned to Compliance
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Beryllium, Total Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Chromium Known
2005-01-01 - 2007-12-31 Inorganic Chemicals Monitoring, Regular Cadmium Known
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular ETHYLENE DIBROMIDE Returned to Compliance
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular Diquat Returned to Compliance
2007-07-01 - 2007-09-30 Synthetic Organic Chemicals Monitoring, Regular 1,2-DIBROMO-3-CHLOROPROPANE Returned to Compliance
2004-01-01 - 2004-01-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
2000-08-01 - 2000-08-31 Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Maximum Contaminant Level Violation, Monthly (TCR) Coliform (TCR) Known
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Known
- N/A Radionuclides Monitoring, Regular Gross Alpha, Excl. Radon and U 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
Brooks Applied Labs, LLC Bothell, WA 98011
Lab/Cor, Inc. Seattle, WA 98117
LABCOR INC SEATTLE, WA 98117

Water Bill Information

Convenient information about your water service.

Unable to identify any billing information about Sammamish Plateau Water & Sewer (WA5340900).

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.