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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 21–30 of 313 samples, newest first — collected April 10, 2023 to August 9, 2023. The summary above covers all 313.

18 results from the 10 samples listed here: 10 detected, 8 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.

We withheld the location of 9 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 Siloam W/A #6-Una System, every result from 21 to 30 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
Aug 9, 2023 06:30
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230810-190
Laboratory
MSDH Lab
0.195 mg/l , sample collected Aug 9, 2023 06:30, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.8 ug/l , sample collected Aug 9, 2023 06:30, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 9, 2023 06:00
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-230810-188
Laboratory
MSDH Lab
0.0199 mg/l , sample collected Aug 9, 2023 06:00, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Aug 9, 2023 06:00, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 21, 2023 10:32
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-230724-018
Laboratory
MSDH Lab
0.228 mg/l , sample collected Jul 21, 2023 10:32, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2023 10:32, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 21, 2023 00:30
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230724-015
Laboratory
MSDH Lab
0.0236 mg/l , sample collected Jul 21, 2023 00:30, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2023 00:30, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 21, 2023 05:25
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230724-016
Laboratory
MSDH Lab
0.174 mg/l , sample collected Jul 21, 2023 05:25, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2023 05:25, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 21, 2023 06:00
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230724-017
Laboratory
MSDH Lab
0.163 mg/l , sample collected Jul 21, 2023 06:00, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2023 06:00, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 21, 2023 06:56
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230724-019
Laboratory
MSDH Lab
0.0056 mg/l , sample collected Jul 21, 2023 06:56, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2023 06:56, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 20, 2023 18:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230724-020
Laboratory
MSDH Lab
0.0806 mg/l , sample collected Jul 20, 2023 18:00, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 20, 2023 18:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Apr 10, 2023 14:21
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
HA-230411-008
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 10, 2023 14:21, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2023 – Jun 30, 2023
Collected
Apr 10, 2023 14:20
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
TH-230411-008
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 10, 2023 14:20, sampling point SM2 TTHM 2950 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023

Routine (10).