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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

MS0160006 , Town of Seminary

28 of the 58 analytes this system has been tested for have been detected at least once, across 198 samples on record.

The other 30 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 198 samples on record, detections range from August 31, 1993 to June 25, 2025. 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 Town of Seminary, 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 48 of 72 results Aug 31, 1993 Jun 25, 2025
Lead 1030 Inorganic Chemical 41 of 72 results Aug 31, 1993 Jun 25, 2025
Barium 1010 Inorganic Chemical 17 of 17 results Apr 23, 2002 Feb 3, 2025
Fluoride 1025 Inorganic Chemical 17 of 17 results Apr 23, 2002 Feb 3, 2025
Chromium 1020 Inorganic Chemical 11 of 17 results Apr 23, 2002 Feb 3, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 7 results May 19, 2004 Mar 27, 2023
TTHM 2950 Organic Chemical 7 of 7 results May 19, 2004 Mar 27, 2023
Xylenes, Total 2955 Organic Chemical 7 of 24 results Aug 16, 2012 Sep 5, 2018
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 12, 2011 Jul 10, 2012
Sodium 1052 Inorganic Chemical 4 of 4 results Feb 1, 2021 Oct 16, 2024
Chloroform 2941 Organic Chemical 4 of 4 results Sep 20, 2006 Aug 9, 2017
Bromodichloromethane 2943 Organic Chemical 4 of 4 results Sep 20, 2006 Aug 9, 2017
Nickel 1036 Inorganic Chemical 4 of 17 results Jan 25, 2006 Apr 15, 2014
Gross Alpha Particle Activity 4109 Radionuclide 4 of 4 results Jun 18, 2012 Jan 15, 2013
Dichloroacetic Acid 2451 Organic Chemical 3 of 3 results Jun 20, 2011 Aug 9, 2017
Trichloroacetic Acid 2452 Organic Chemical 3 of 3 results Jun 20, 2011 Aug 9, 2017
Sulfate 1055 Inorganic Chemical 3 of 3 results Apr 23, 2002 Jan 26, 2004
Arsenic 1005 Inorganic Chemical 2 of 17 results Oct 1, 2018 Feb 3, 2025
Nitrite 1041 Inorganic Chemical 2 of 36 results Jan 10, 2022 Jan 10, 2022
Cyanide 1024 Inorganic Chemical 2 of 14 results Aug 17, 2011 Apr 20, 2020
Ethylbenzene 2992 Organic Chemical 2 of 24 results May 21, 2018 Sep 5, 2018
Dibromochloromethane 2944 Organic Chemical 2 of 4 results Sep 20, 2006 Jun 20, 2011
Cadmium 1015 Inorganic Chemical 2 of 17 results Mar 2, 2005 Jan 25, 2006
Selenium 1045 Inorganic Chemical 2 of 17 results Mar 2, 2005 Jan 25, 2006
Styrene 2996 Organic Chemical 1 of 24 results May 21, 2018 May 21, 2018
Monochloroacetic Acid 2450 Organic Chemical 1 of 3 results Aug 9, 2017 Aug 9, 2017
Dichloromethane 2964 Organic Chemical 1 of 24 results Oct 14, 2014 Oct 14, 2014
Monobromoacetic Acid 2453 Organic Chemical 1 of 3 results Jun 20, 2011 Jun 20, 2011

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 21–30 of 198 samples, newest first — collected January 10, 2022 to January 30, 2023. The summary above covers all 198.

31 results from the 10 samples listed here: 11 detected, 20 not detected. Across the whole record it is 207 of 1,054. 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 Town of Seminary, every result from 21 to 30 of 198 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 30, 2023 12:45
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
NI-230131-012
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 30, 2023 12:45, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 30, 2023 12:45, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 30, 2023 12:45, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 30, 2023 12:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-230131-011
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 30, 2023 12:30, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 30, 2023 12:30, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 30, 2023 12:30, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jun 15, 2022 08:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-020
Laboratory
MSDH Lab
0.165 mg/l , sample collected Jun 15, 2022 08:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.5 ug/l , sample collected Jun 15, 2022 08:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 15, 2022 08:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-019
Laboratory
MSDH Lab
0.0142 mg/l , sample collected Jun 15, 2022 08:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.6 ug/l , sample collected Jun 15, 2022 08:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 15, 2022 09:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-018
Laboratory
MSDH Lab
0.0765 mg/l , sample collected Jun 15, 2022 09:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 15, 2022 09:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 15, 2022 09:05
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-017
Laboratory
MSDH Lab
0.117 mg/l , sample collected Jun 15, 2022 09:05, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
2.1 ug/l , sample collected Jun 15, 2022 09:05, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jun 15, 2022 09:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-220616-016
Laboratory
MSDH Lab
0.0339 mg/l , sample collected Jun 15, 2022 09:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 15, 2022 09:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
May 9, 2022 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-220510-051
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 13:00, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0043 mg/l , sample collected May 9, 2022 13:00, 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 May 9, 2022 13:00, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 9, 2022 13:00, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.385 mg/l , sample collected May 9, 2022 13:00, 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 May 9, 2022 13:00, 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 May 9, 2022 13:00, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 9, 2022 13:00, 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 May 9, 2022 13:00, 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 May 9, 2022 13:00, 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 May 9, 2022 13:00, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Feb 23, 2022 14:30
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
RU-220224-025
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 23, 2022 14:30, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2014 – Dec 31, 2022
Collected
Jan 10, 2022 13:20
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
NI-220111-050
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 10, 2022 13:20, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 10, 2022 13:20, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
0.0228 mg/l , sample collected Jan 10, 2022 13:20, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022

Routine (10).