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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0250004 , Eastside Water Association

27 of the 57 analytes this system has been tested for have been detected at least once, across 317 samples on record.

The other 30 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 317 samples on record, detections range from December 13, 1993 to February 13, 2025. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Every analyte ever detected for Eastside Water Association, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 87 of 122 results Dec 14, 1993 Aug 27, 2024
Lead 1030 Inorganic Chemical 83 of 122 results Dec 13, 1993 Aug 27, 2024
Barium 1010 Inorganic Chemical 22 of 22 results Sep 29, 2003 Feb 15, 2024
Fluoride 1025 Inorganic Chemical 22 of 22 results Sep 29, 2003 Feb 15, 2024
Chromium 1020 Inorganic Chemical 21 of 22 results Sep 29, 2003 Feb 15, 2024
Nitrate-Nitrite 1038 Inorganic Chemical 11 of 47 results Feb 14, 2018 Feb 13, 2025
Nitrate 1040 Inorganic Chemical 11 of 47 results Feb 14, 2018 Feb 13, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 14, 2011 Jul 12, 2012
TTHM 2950 Organic Chemical 7 of 10 results Jun 9, 2004 Sep 29, 2020
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 26, 2019 Feb 6, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 10 results Jun 9, 2004 Sep 29, 2020
Chloroform 2941 Organic Chemical 6 of 7 results Aug 8, 2007 Sep 29, 2020
Nickel 1036 Inorganic Chemical 4 of 22 results Apr 16, 2008 Feb 15, 2024
Bromodichloromethane 2943 Organic Chemical 4 of 7 results Aug 8, 2007 Aug 2, 2018
Dibromochloromethane 2944 Organic Chemical 4 of 7 results Aug 8, 2007 Aug 2, 2018
Sulfate 1055 Inorganic Chemical 4 of 4 results Sep 29, 2003 Feb 11, 2004
Dichloroacetic Acid 2451 Organic Chemical 3 of 6 results Jul 25, 2012 Sep 29, 2020
Trichloroacetic Acid 2452 Organic Chemical 3 of 6 results Sep 25, 2008 Aug 2, 2018
Monobromoacetic Acid 2453 Organic Chemical 2 of 6 results Aug 2, 2018 Sep 29, 2020
Nitrite 1041 Inorganic Chemical 2 of 47 results Feb 14, 2018 Feb 14, 2018
Dibromoacetic Acid 2454 Organic Chemical 2 of 6 results Sep 25, 2008 Jul 25, 2012
Cadmium 1015 Inorganic Chemical 2 of 22 results Mar 9, 2005 Mar 9, 2005
Selenium 1045 Inorganic Chemical 2 of 22 results Mar 9, 2005 Mar 9, 2005
Cyanide 1024 Inorganic Chemical 1 of 23 results Apr 4, 2012 Apr 4, 2012
Xylenes, Total 2955 Organic Chemical 1 of 54 results Jul 28, 2004 Jul 28, 2004
Ethylbenzene 2992 Organic Chemical 1 of 54 results Jul 28, 2004 Jul 28, 2004
Toluene 2991 Organic Chemical 1 of 54 results Aug 18, 2003 Aug 18, 2003

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 141–150 of 317 samples, newest first — collected February 28, 2012 to May 2, 2012. The summary above covers all 317.

42 results from the 10 samples listed here: 11 detected, 31 not detected. Across the whole record it is 328 of 1,927. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Eastside Water Association, every result from 141 to 150 of 317 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
May 2, 2012 03:20
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120503-003IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:20, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.01888 mg/l , sample collected May 2, 2012 03:20, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:20, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00163 mg/l , sample collected May 2, 2012 03:20, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.162 mg/l , sample collected May 2, 2012 03:20, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:20, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:20, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:20, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:20, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:20, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:20, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
May 2, 2012 03:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120503-002IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:10, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.01803 mg/l , sample collected May 2, 2012 03:10, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:10, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00243 mg/l , sample collected May 2, 2012 03:10, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.17 mg/l , sample collected May 2, 2012 03:10, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:10, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:10, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:10, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:10, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:10, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 2, 2012 03:10, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Apr 25, 2012 12:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120426-007
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Apr 25, 2012 12:35, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.48 pci/l Minimum Reporting Level , sample collected Apr 25, 2012 12:35, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.48 pci/l Minimum Reporting Level , sample collected Apr 25, 2012 12:35, sampling point TF102 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.42 pci/l Minimum Reporting Level , sample collected Apr 25, 2012 12:35, sampling point TF102 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 25, 2012 12:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120426-006
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Apr 25, 2012 12:20, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Apr 25, 2012 12:20, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.468 pci/l Minimum Reporting Level , sample collected Apr 25, 2012 12:20, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Apr 25, 2012 12:20, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 25, 2012 12:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120426-007RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 25, 2012 12:35, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 25, 2012 12:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120426-006RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 25, 2012 12:20, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Apr 4, 2012
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120405-014CN
Laboratory
MSDH Lab
0.017 mg/l , sample collected Apr 4, 2012, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Apr 4, 2012 10:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120405-013CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 4, 2012 10:10, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Feb 28, 2012 13:10
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120229-003
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Feb 28, 2012 13:10, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.48 pci/l Minimum Reporting Level , sample collected Feb 28, 2012 13:10, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.48 pci/l Minimum Reporting Level , sample collected Feb 28, 2012 13:10, sampling point TF102 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.42 pci/l Minimum Reporting Level , sample collected Feb 28, 2012 13:10, sampling point TF102 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 28, 2012 12:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120229-002
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Feb 28, 2012 12:50, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Feb 28, 2012 12:50, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.468 pci/l Minimum Reporting Level , sample collected Feb 28, 2012 12:50, sampling point TF101 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.6 pci/l Minimum Reporting Level , sample collected Feb 28, 2012 12:50, sampling point TF101 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012

Routine (10).