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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

MS0130023 , Siloam W/A #6-Una System

19 of the 59 analytes this system has been tested for have been detected at least once, across 313 samples on record.

The other 40 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 313 samples on record, detections range from October 10, 1993 to February 3, 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 Siloam W/A #6-Una System, 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 114 of 142 results Oct 10, 1993 Aug 9, 2023
Lead 1030 Inorganic Chemical 94 of 142 results Oct 11, 1993 Aug 9, 2023
Barium 1010 Inorganic Chemical 24 of 24 results Mar 19, 2002 Feb 3, 2025
Fluoride 1025 Inorganic Chemical 24 of 24 results Mar 19, 2002 Feb 3, 2025
Chromium 1020 Inorganic Chemical 16 of 24 results Mar 19, 2002 Feb 3, 2025
Arsenic 1005 Inorganic Chemical 10 of 24 results Jan 23, 2006 Feb 3, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 25 results Jul 9, 2007 Mar 20, 2023
Nickel 1036 Inorganic Chemical 8 of 24 results Feb 14, 2005 Apr 23, 2014
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 16, 2019 Oct 15, 2024
Selenium 1045 Inorganic Chemical 6 of 24 results Feb 14, 2005 Mar 26, 2008
Cadmium 1015 Inorganic Chemical 4 of 24 results Feb 14, 2005 Jan 23, 2006
TTHM 2950 Organic Chemical 3 of 23 results Jul 9, 2007 Mar 11, 2024
Monobromoacetic Acid 2453 Organic Chemical 3 of 12 results Aug 12, 2008 Jul 22, 2020
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 47 results Jan 18, 2023 Jan 18, 2023
Nitrate 1040 Inorganic Chemical 2 of 47 results Jan 18, 2023 Jan 18, 2023
Nitrite 1041 Inorganic Chemical 2 of 47 results Jan 10, 2022 Jan 10, 2022
Monochloroacetic Acid 2450 Organic Chemical 2 of 12 results Jul 16, 2018 Jul 22, 2020
Gross Alpha Particle Activity 4109 Radionuclide 2 of 4 results Jun 27, 2012 Sep 13, 2012
Bromoform 2942 Organic Chemical 1 of 12 results Aug 31, 2011 Aug 31, 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 201–210 of 313 samples, newest first — collected February 14, 2005 to April 11, 2007. The summary above covers all 313.

42 results from the 10 samples listed here: 14 detected, 28 not detected. Across the whole record it is 332 of 1,274. 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 Siloam W/A #6-Una System, every result from 201 to 210 of 313 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
Apr 11, 2007
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
070412-064NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 11, 2007, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 11, 2007, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 11, 2007, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Jun 12, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060613-090NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 12, 2006, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 12, 2006, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 12, 2006, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jun 12, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060613-044NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 12, 2006, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 12, 2006, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 12, 2006, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Feb 6, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060207-064CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 6, 2006, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Jan 23, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060124-004CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Jan 23, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060124-052IN
Laboratory
MSDH Lab
0.000646 mg/l , sample collected Jan 23, 2006, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.077827 mg/l , sample collected Jan 23, 2006, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000173 mg/l , sample collected Jan 23, 2006, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001166 mg/l , sample collected Jan 23, 2006, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.484434 mg/l , sample collected Jan 23, 2006, 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 Jan 23, 2006, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000687 mg/l , sample collected Jan 23, 2006, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.002549 mg/l , sample collected Jan 23, 2006, 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 Jan 23, 2006, 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 Jan 23, 2006, 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 Jan 23, 2006, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF102 Uranium-238 4009 Not recorded
Collected
Jan 23, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060124-053IN
Laboratory
MSDH Lab
0.000589 mg/l , sample collected Jan 23, 2006, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.045548 mg/l , sample collected Jan 23, 2006, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000189 mg/l , sample collected Jan 23, 2006, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000908 mg/l , sample collected Jan 23, 2006, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.355296 mg/l , sample collected Jan 23, 2006, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000532 mg/l , sample collected Jan 23, 2006, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.002567 mg/l , sample collected Jan 23, 2006, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF101 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 Jan 23, 2006, sampling point TF101 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 Jan 23, 2006, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF101 Uranium-238 4009 Not recorded
Collected
Jul 27, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050728-131NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 27, 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 27, 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 27, 2005, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Jul 27, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050728-027NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 27, 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 27, 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 27, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Feb 14, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050215-008CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 14, 2005, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007

Routine (10).