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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

MS0060019 , City of Shelby

20 of the 57 analytes this system has been tested for have been detected at least once, across 330 samples on record.

The other 37 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 330 samples on record, detections range from November 15, 1993 to June 15, 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 City of Shelby, 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 148 of 155 results Nov 15, 1993 Sep 30, 2025
Lead 1030 Inorganic Chemical 87 of 155 results Nov 15, 1993 Jul 11, 2022
Barium 1010 Inorganic Chemical 27 of 27 results Sep 15, 2003 Dec 11, 2025
Fluoride 1025 Inorganic Chemical 27 of 27 results Sep 15, 2003 Dec 11, 2025
Selenium 1045 Inorganic Chemical 24 of 27 results Sep 15, 2003 May 3, 2022
Arsenic 1005 Inorganic Chemical 23 of 27 results Sep 15, 2003 May 3, 2022
Chromium 1020 Inorganic Chemical 20 of 27 results Sep 15, 2003 Dec 11, 2025
TTHM 2950 Organic Chemical 18 of 21 results May 5, 2004 Jun 15, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 14 of 22 results Jun 27, 2007 Jun 15, 2026
Chloroform 2941 Organic Chemical 12 of 17 results Jun 27, 2007 Jun 15, 2026
Dichloroacetic Acid 2451 Organic Chemical 9 of 16 results Jul 17, 2008 Jun 15, 2026
Bromoform 2942 Organic Chemical 8 of 17 results Jun 27, 2007 Sep 25, 2025
Dibromochloromethane 2944 Organic Chemical 8 of 17 results Jun 27, 2007 Sep 25, 2025
Dibromoacetic Acid 2454 Organic Chemical 7 of 16 results Jul 17, 2008 Sep 25, 2025
Bromodichloromethane 2943 Organic Chemical 7 of 17 results Jun 27, 2007 Sep 25, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Mar 7, 2012 Oct 5, 2012
Sodium 1052 Inorganic Chemical 4 of 4 results Sep 24, 2019 Jan 20, 2021
Trichloroacetic Acid 2452 Organic Chemical 3 of 16 results Aug 19, 2015 Sep 25, 2025
Nickel 1036 Inorganic Chemical 3 of 27 results Mar 10, 2008 Mar 10, 2008
Sulfate 1055 Inorganic Chemical 1 of 4 results Sep 15, 2003 Sep 15, 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 121–130 of 330 samples, newest first — collected August 2, 2012 to January 23, 2013. The summary above covers all 330.

32 results from the 10 samples listed here: 3 detected, 29 not detected. Across the whole record it is 455 of 1,505. 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 City of Shelby, every result from 121 to 130 of 330 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
Jan 23, 2013 12:46
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
130124-065NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 12:46, sampling point TF103 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 Jan 23, 2013 12:46, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 12:46, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Jan 23, 2013 12:10
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
130124-050NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 12:10, sampling point TF102 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 Jan 23, 2013 12:10, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 23, 2013 12:10, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Oct 5, 2012 12:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
201301100462
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Oct 5, 2012 12:35, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 5, 2012 12:35, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.288 pci/l Minimum Reporting Level , sample collected Oct 5, 2012 12:35, sampling point TF102 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 5, 2012 12:35, sampling point TF102 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 5, 2012 13:05
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
201301100457
Laboratory
Radiation Safety Engineering
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Oct 5, 2012 13:05, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Oct 5, 2012 13:05, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.266 pci/l Minimum Reporting Level , sample collected Oct 5, 2012 13:05, sampling point TF103 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Oct 5, 2012 13:05, sampling point TF103 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 4, 2012 12:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
121005-016
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Oct 4, 2012 12:30, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 12:30, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.288 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 12:30, sampling point TF102 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 12:30, sampling point TF102 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 4, 2012 13:15
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
121005-017
Laboratory
Radiation Safety Engineering
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 13:15, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 13:15, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.266 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 13:15, sampling point TF103 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Oct 4, 2012 13:15, sampling point TF103 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Aug 2, 2012 12:05
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120803-011
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Aug 2, 2012 12:05, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:05, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.288 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:05, sampling point TF102 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:05, sampling point TF102 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 2, 2012 12:45
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120803-012
Laboratory
Radiation Safety Engineering
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:45, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:45, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.266 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:45, sampling point TF103 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.44 pci/l Minimum Reporting Level , sample collected Aug 2, 2012 12:45, sampling point TF103 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 2, 2012 12:45
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
120803-012RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 2, 2012 12:45, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 2, 2012 12:05
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120803-011RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 2, 2012 12:05, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012

Routine (10).