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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

MS0060049 , Deeson-Roundlake Water Corp

26 of the 59 analytes this system has been tested for have been detected at least once, across 267 samples on record.

The other 33 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 267 samples on record, detections range from June 7, 1994 to March 3, 2025. 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 Deeson-Roundlake Water Corp, 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 177 of 187 results Jun 7, 1994 Sep 27, 2024
Lead 1030 Inorganic Chemical 146 of 187 results Jun 7, 1994 Aug 16, 2024
Arsenic 1005 Inorganic Chemical 11 of 11 results Jun 25, 2002 Jan 13, 2025
Barium 1010 Inorganic Chemical 11 of 11 results Jun 25, 2002 Jan 13, 2025
Fluoride 1025 Inorganic Chemical 9 of 11 results Jan 12, 2004 Jan 13, 2025
Chromium 1020 Inorganic Chemical 7 of 11 results Jun 25, 2002 Jan 13, 2025
Selenium 1045 Inorganic Chemical 7 of 11 results Jun 25, 2002 May 5, 2014
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 9 results Jun 25, 2007 Mar 3, 2025
TTHM 2950 Organic Chemical 6 of 8 results Jun 25, 2007 Mar 3, 2025
Dibromoacetic Acid 2454 Organic Chemical 4 of 5 results Jun 7, 2010 Aug 4, 2014
Chloroform 2941 Organic Chemical 4 of 5 results Jun 25, 2007 Aug 4, 2014
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 20, 2019 Oct 15, 2024
Bromoform 2942 Organic Chemical 3 of 5 results Jun 7, 2010 Aug 4, 2014
Bromodichloromethane 2943 Organic Chemical 3 of 5 results Jun 7, 2010 Aug 4, 2014
Dibromochloromethane 2944 Organic Chemical 3 of 5 results Jun 7, 2010 Aug 4, 2014
Nickel 1036 Inorganic Chemical 2 of 11 results Mar 10, 2008 May 5, 2014
Gross Alpha Particle Activity 4109 Radionuclide 2 of 5 results Jun 25, 2012 Sep 17, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 2 of 6 results Nov 28, 2011 Dec 19, 2011
Gross Alpha, Incl. Radon & U 4002 Radionuclide 1 of 1 result Mar 18, 2016 Mar 18, 2016
Radium-228 4030 Radionuclide 1 of 6 results Dec 19, 2011 Dec 19, 2011
Radium-226 4020 Radionuclide 1 of 6 results Nov 28, 2011 Nov 28, 2011
Monochloroacetic Acid 2450 Organic Chemical 1 of 5 results Jul 11, 2011 Jul 11, 2011
Dichloroacetic Acid 2451 Organic Chemical 1 of 5 results Jul 11, 2011 Jul 11, 2011
Trichloroacetic Acid 2452 Organic Chemical 1 of 5 results Jul 11, 2011 Jul 11, 2011
Monobromoacetic Acid 2453 Organic Chemical 1 of 5 results Jul 11, 2011 Jul 11, 2011
Nitrate 1040 Inorganic Chemical 1 of 22 results Jun 5, 2006 Jun 5, 2006

Showing samples collected between September 25, 2024 and September 25, 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 7 samples collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

20 results from the 7 samples listed here: 8 detected, 12 not detected. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 2 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Deeson-Roundlake Water Corp, every result from the 7 samples on record, 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
May 27, 2025 11:37
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-250528-004
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 27, 2025 11:37, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Mar 3, 2025 12:53
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-250304-011
Laboratory
MSDH Lab
2.98 ug/l , sample collected Mar 3, 2025 12:53, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 3, 2025 12:05
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250304-026
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 12:05, sampling point TF101 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 3, 2025 12:05, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 12:05, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 3, 2025 12:53
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-250304-011
Laboratory
MSDH Lab
93.8 ug/l , sample collected Mar 3, 2025 12:53, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2025
Collected
Jan 13, 2025 10:49
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250114-044
Laboratory
MSDH Lab
0.0014 mg/l , sample collected Jan 13, 2025 10:49, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0825 mg/l , sample collected Jan 13, 2025 10:49, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 13, 2025 10:49, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0023 mg/l , sample collected Jan 13, 2025 10:49, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.143 mg/l , sample collected Jan 13, 2025 10:49, sampling point TF101 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 Jan 13, 2025 10:49, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 13, 2025 10:49, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 13, 2025 10:49, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 13, 2025 10:49, sampling point TF101 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 Jan 13, 2025 10:49, sampling point TF101 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 Jan 13, 2025 10:49, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Oct 15, 2024 14:36
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NA-241016-047
Laboratory
MSDH Lab
140 mg/l , sample collected Oct 15, 2024 14:36, sampling point TF101 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Sep 27, 2024 07:40
Sampling point
LC0020 Location withheld
Sample type
Routine
Lab sample
PB-241001-039
Laboratory
MSDH Lab
0.0032 mg/l , sample collected Sep 27, 2024 07:40, sampling point LC0020 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 27, 2024 07:40, sampling point LC0020 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024

Routine (7).