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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 51–60 of 330 samples, newest first — collected April 1, 2020 to June 23, 2021. The summary above covers all 330.

44 results from the 10 samples listed here: 8 detected, 36 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 51 to 60 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
Jun 23, 2021 13:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-210625-004
Laboratory
MSDH Lab
3.79 ug/l , sample collected Jun 23, 2021 13:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2021 – Dec 31, 2021
Collected
Apr 27, 2021 14:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
210428-011VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 27, 2021 14:30, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2016 – Dec 31, 2021
Collected
Apr 19, 2021 13:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
RU-210420-015
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 19, 2021 13:30, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Mar 30, 2021 12:21
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-210331-008
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 30, 2021 12:21, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Mar 30, 2021 12:21
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
CN-210331-007
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 30, 2021 12:21, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Jan 20, 2021 13:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NA-210121-012
Laboratory
MSDH Lab
96.3 mg/l , sample collected Jan 20, 2021 13:30, sampling point TF103 Sodium 1052 EPA method 200.7 Not recorded
Collected
Jan 20, 2021 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NA-210121-011
Laboratory
MSDH Lab
331 mg/l , sample collected Jan 20, 2021 13:00, sampling point TF102 Sodium 1052 EPA method 200.7 Not recorded
Collected
Jan 20, 2021 13:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-210121-032
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 13:30, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 13:30, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 13:30, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jan 20, 2021 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-210121-031
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 13:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 13:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 13:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Apr 1, 2020 13:45
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
200402-020IN
Laboratory
MSDH Lab
0.0049 mg/l , sample collected Apr 1, 2020 13:45, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0256 mg/l , sample collected Apr 1, 2020 13:45, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 1, 2020 13:45, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0012 mg/l , sample collected Apr 1, 2020 13:45, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.46 mg/l , sample collected Apr 1, 2020 13:45, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 1, 2020 13:45, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 1, 2020 13:45, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.0052 mg/l , sample collected Apr 1, 2020 13:45, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 1, 2020 13:45, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 1, 2020 13:45, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 1, 2020 13:45, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022

Routine (10).