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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

MS0500004 , Central W/A-East Side

40 of the 74 analytes this system has been tested for have been detected at least once, across 279 samples on record.

The other 34 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 279 samples on record, detections range from October 8, 2003 to May 11, 2026. 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 Central W/A-East Side, 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 162 of 162 results Jun 24, 2004 Aug 6, 2024
Lead 1030 Inorganic Chemical 58 of 162 results Jun 24, 2004 Aug 6, 2024
TTHM 2950 Organic Chemical 18 of 18 results Jul 21, 2004 Apr 29, 2025
Barium 1010 Inorganic Chemical 14 of 14 results Oct 8, 2003 Mar 18, 2025
Chloroform 2941 Organic Chemical 13 of 13 results Sep 26, 2007 Apr 29, 2025
Bromodichloromethane 2943 Organic Chemical 13 of 13 results Sep 26, 2007 Apr 29, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 12 of 19 results Jun 14, 2010 May 11, 2026
Dichloroacetic Acid 2451 Organic Chemical 11 of 14 results Aug 30, 2007 May 11, 2026
Nickel 1036 Inorganic Chemical 11 of 14 results Mar 8, 2004 Mar 18, 2025
Dibromochloromethane 2944 Organic Chemical 10 of 13 results Jun 14, 2010 Apr 29, 2025
Trichloroacetic Acid 2452 Organic Chemical 8 of 14 results Aug 30, 2007 May 11, 2026
Sulfate 1055 Inorganic Chemical 8 of 8 results Oct 8, 2003 Apr 7, 2017
Sodium 1052 Inorganic Chemical 7 of 7 results May 17, 2016 Feb 25, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Mar 12, 2012 Oct 9, 2012
Calcium 1016 Inorganic Chemical 4 of 4 results May 17, 2016 Apr 7, 2017
Chloride 1017 Inorganic Chemical 4 of 4 results May 17, 2016 Apr 7, 2017
Fluoride 1025 Inorganic Chemical 4 of 18 results Oct 8, 2003 Apr 7, 2017
Iron 1028 Inorganic Chemical 4 of 4 results May 17, 2016 Apr 7, 2017
Magnesium 1031 Inorganic Chemical 4 of 4 results May 17, 2016 Apr 7, 2017
Manganese 1032 Inorganic Chemical 4 of 4 results May 17, 2016 Apr 7, 2017
Potassium 1042 Inorganic Chemical 4 of 4 results May 17, 2016 Apr 7, 2017
Residue, Total, Filterable 1057 Water Quality 4 of 4 results May 17, 2016 Apr 7, 2017
Carbon Dioxide 1901 Water Quality 4 of 4 results May 17, 2016 Apr 7, 2017
Color 1905 Water Quality 4 of 4 results May 17, 2016 Apr 7, 2017
Hardness, Total (As Caco3) 1915 Water Quality 4 of 4 results May 17, 2016 Apr 7, 2017
Alkalinity, Total 1927 Water Quality 4 of 4 results May 17, 2016 Apr 7, 2017
Calculated Sodium NACA Water Quality 4 of 4 results May 17, 2016 Apr 7, 2017
PH, Field Result PHFD Water Quality 4 of 4 results May 17, 2016 Apr 7, 2017
Iron, Field Result FEFD Inorganic Chemical 3 of 3 results May 17, 2016 Apr 7, 2017
Selenium 1045 Inorganic Chemical 3 of 14 results Oct 8, 2003 Apr 4, 2005
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Sep 21, 2020 Sep 21, 2020
Gross Alpha, Excl. Radon & U 4000 Radionuclide 1 of 1 result Mar 1, 2010 Mar 1, 2010
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 6 results Mar 1, 2010 Mar 1, 2010
Radium-226 4020 Radionuclide 1 of 6 results Mar 1, 2010 Mar 1, 2010
Radium-228 4030 Radionuclide 1 of 6 results Mar 1, 2010 Mar 1, 2010
Gross Beta Particle Activity 4100 Radionuclide 1 of 1 result Mar 1, 2010 Mar 1, 2010
Gross Alpha Particle Activity 4109 Radionuclide 1 of 1 result Mar 1, 2010 Mar 1, 2010
Chromium 1020 Inorganic Chemical 1 of 14 results Apr 4, 2005 Apr 4, 2005
Cadmium 1015 Inorganic Chemical 1 of 14 results Mar 8, 2004 Mar 8, 2004
Mercury 1035 Inorganic Chemical 1 of 14 results Mar 8, 2004 Mar 8, 2004

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 161–170 of 279 samples, newest first — collected August 11, 2010 to May 21, 2012. The summary above covers all 279.

25 results from the 10 samples listed here: 3 detected, 22 not detected. Across the whole record it is 422 of 1,098. 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 Central W/A-East Side, every result from 161 to 170 of 279 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 21, 2012 14:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120522-129
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected May 21, 2012 14:15, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:15, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.182 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:15, sampling point TF080 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:15, sampling point TF080 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 14:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120522-129RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 21, 2012 14:15, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Mar 12, 2012 15:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120313-135
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Mar 12, 2012 15:00, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 15:00, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.182 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 15:00, sampling point TF080 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 15:00, sampling point TF080 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 12, 2012 15:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120313-135RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 12, 2012 15:00, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 5, 2012 02:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120306-039NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 5, 2012 02:45, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 5, 2012 02:45, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 5, 2012 02:45, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Mar 7, 2011
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
110308-049NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Dec 6, 2010
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
101207-002
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 6, 2010, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Oct 1, 2010 – Dec 31, 2010
Collected
Aug 30, 2010
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
100831-058NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Aug 30, 2010
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
100831-029NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF081 Nitrate-Nitrite 1038 EPA method 353.2 Not recorded
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF081 Nitrate 1040 EPA method 353.2 Not recorded
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF081 Nitrite 1041 EPA method 353.2 Not recorded
Collected
Aug 11, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100812-048PB
Laboratory
MSDH Lab
0.1366 mg/l , sample collected Aug 11, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 11, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010

Routine (10).