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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

MS0350001 , Town of Dekalb

26 of the 62 analytes this system has been tested for have been detected at least once, across 166 samples on record.

The other 36 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 166 samples on record, detections range from September 24, 2003 to July 27, 2026. These figures cover the whole record; the list of samples further down is narrowed.

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 Dekalb, 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 60 of 60 results Jul 31, 2007 Jul 27, 2026
Barium 1010 Inorganic Chemical 15 of 15 results Sep 24, 2003 Jun 15, 2026
Nickel 1036 Inorganic Chemical 13 of 14 results Feb 23, 2004 Oct 8, 2025
Fluoride 1025 Inorganic Chemical 12 of 17 results Sep 24, 2003 Jul 15, 2026
Lead 1030 Inorganic Chemical 11 of 60 results Jul 31, 2007 Jul 27, 2026
TTHM 2950 Organic Chemical 9 of 16 results Jun 21, 2004 May 18, 2026
Dibromochloromethane 2944 Organic Chemical 7 of 12 results Aug 13, 2007 May 18, 2026
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 23, 2019 Jun 15, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 18 results Sep 22, 2009 Jun 15, 2021
Bromodichloromethane 2943 Organic Chemical 6 of 12 results Aug 13, 2007 Jun 15, 2020
Chloroform 2941 Organic Chemical 5 of 12 results Aug 13, 2007 Apr 22, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 14, 2011 Jul 17, 2012
Sulfate 1055 Inorganic Chemical 4 of 4 results Sep 24, 2003 May 12, 2021
Bromoform 2942 Organic Chemical 4 of 12 results Aug 13, 2007 Aug 22, 2018
Chromium 1020 Inorganic Chemical 3 of 15 results Feb 26, 2025 Jul 23, 2025
Dichloroacetic Acid 2451 Organic Chemical 3 of 13 results Jun 29, 2015 Apr 22, 2019
Calcium 1016 Inorganic Chemical 2 of 2 results May 12, 2021 May 12, 2021
Chloride 1017 Inorganic Chemical 2 of 2 results May 12, 2021 May 12, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results May 12, 2021 May 12, 2021
Alkalinity, Total 1927 Water Quality 2 of 2 results May 12, 2021 May 12, 2021
Monobromoacetic Acid 2453 Organic Chemical 2 of 13 results Jun 29, 2015 Jun 15, 2020
Xylenes, Total 2955 Organic Chemical 1 of 8 results Oct 8, 2025 Oct 8, 2025
Arsenic 1005 Inorganic Chemical 1 of 15 results Jul 23, 2025 Jul 23, 2025
Selenium 1045 Inorganic Chemical 1 of 15 results Jul 23, 2025 Jul 23, 2025
Monochloroacetic Acid 2450 Organic Chemical 1 of 13 results Jun 29, 2015 Jun 29, 2015
Dibromoacetic Acid 2454 Organic Chemical 1 of 13 results Jun 29, 2015 Jun 29, 2015

Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 31–37 of 37 samples, newest first — collected January 15, 2025 to March 19, 2025. The summary above covers all 37.

31 results from the 7 samples listed here: 6 detected, 25 not detected. 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 Dekalb, every result from 31 to 37 of 37 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
Mar 19, 2025 14:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-250320-001
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 19, 2025 14:00, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2025 – Mar 31, 2025
Collected
Mar 19, 2025 14:05
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-250320-013
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 19, 2025 14:05, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 19, 2025 14:05, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 19, 2025 14:05, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 26, 2025 09:25
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-250227-037
Laboratory
MSDH Lab
6.08 mg/l , sample collected Feb 26, 2025 09:25, sampling point TF080 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 26, 2025 09:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250227-050
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 09:20, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0758 mg/l , sample collected Feb 26, 2025 09:20, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 09:20, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0007 mg/l , sample collected Feb 26, 2025 09:20, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 09:20, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 09:20, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0038 mg/l , sample collected Feb 26, 2025 09:20, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 09:20, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 09:20, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 09:20, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 26, 2025 09:20, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jan 15, 2025 10:37
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250116-032
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
0.0745 mg/l , sample collected Jan 15, 2025 10:37, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2025 – Mar 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
0.0028 mg/l , sample collected Jan 15, 2025 10:37, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:37, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
Collected
Jan 15, 2025 10:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
RU-250116-013
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:45, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2025 – Mar 31, 2025
Collected
Jan 15, 2025 10:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250116-029
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Mar 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Mar 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 10:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Mar 31, 2025

Routine (7).