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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 151–160 of 279 samples, newest first — collected August 7, 2012 to August 6, 2013. The summary above covers all 279.

34 results from the 10 samples listed here: 8 detected, 26 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 151 to 160 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
Aug 6, 2013 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130807-041PB
Laboratory
MSDH Lab
0.0152 mg/l , sample collected Aug 6, 2013 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 6, 2013 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 6, 2013 06:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130807-040PB
Laboratory
MSDH Lab
0.2395 mg/l , sample collected Aug 6, 2013 06:35, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 6, 2013 06:35, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Aug 6, 2013 05:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130807-039PB
Laboratory
MSDH Lab
0.1103 mg/l , sample collected Aug 6, 2013 05:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 6, 2013 05:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Apr 29, 2013 01:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
130430-070IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 01:30, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.069 mg/l , sample collected Apr 29, 2013 01:30, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 01:30, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 01:30, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 01:30, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 01:30, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0043 mg/l , sample collected Apr 29, 2013 01:30, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 01:30, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 29, 2013 01:30, sampling point TF080 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 Apr 29, 2013 01:30, sampling point TF080 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 Apr 29, 2013 01:30, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Mar 4, 2013 01:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
130305-039NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 4, 2013 01:20, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 4, 2013 01:20, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 4, 2013 01:20, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Oct 9, 2012 15:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
201301120058
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Oct 9, 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 Oct 9, 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 Oct 9, 2012 15:00, sampling point TF080 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 15:00, sampling point TF080 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 8, 2012 14:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
121009-114
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Oct 8, 2012 14:00, 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 Oct 8, 2012 14:00, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.182 pci/l Minimum Reporting Level , sample collected Oct 8, 2012 14:00, sampling point TF080 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Oct 8, 2012 14:00, sampling point TF080 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Sep 24, 2012 03:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120925-014CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Sep 24, 2012 03:45, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2011 – Dec 31, 2013
Collected
Aug 7, 2012 14:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120808-101
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Aug 7, 2012 14:30, 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 Aug 7, 2012 14:30, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.182 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 14:30, sampling point TF080 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 14:30, sampling point TF080 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 7, 2012 14:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120808-101RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 7, 2012 14:30, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012

Routine (10).