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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 211–220 of 330 samples, newest first — collected November 29, 2004 to July 20, 2005. The summary above covers all 330.

78 results from the 10 samples listed here: 10 detected, 68 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 211 to 220 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
Jul 20, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050721-024NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Jul 20, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050721-005NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Jul 20, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050721-015NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 20, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
May 23, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050524-028VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Benzene 2990 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Toluene 2991 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 23, 2005, sampling point TF102 Styrene 2996 EPA method 524.2 Apr 1, 2005 – Jun 30, 2005
Collected
Feb 14, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050215-110CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 14, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050215-097CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 14, 2005
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
050215-114IN
Laboratory
MSDH Lab
0.000667 mg/l , sample collected Feb 14, 2005, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.026065 mg/l , sample collected Feb 14, 2005, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001076 mg/l , sample collected Feb 14, 2005, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.584728 mg/l , sample collected Feb 14, 2005, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
0.003646 mg/l , sample collected Feb 14, 2005, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Feb 14, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050215-113IN
Laboratory
MSDH Lab
0.001032 mg/l , sample collected Feb 14, 2005, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.03325 mg/l , sample collected Feb 14, 2005, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001316 mg/l , sample collected Feb 14, 2005, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.525949 mg/l , sample collected Feb 14, 2005, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.004483 mg/l , sample collected Feb 14, 2005, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Jan 27, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050128-019VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jan 27, 2005, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Mar 31, 2005
Collected
Nov 29, 2004
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
041130-019NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 29, 2004, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 29, 2004, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 29, 2004, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2004 – Dec 31, 2004

Routine (10).