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.
| 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 141–150 of 313 samples, newest first — collected August 10, 2011 to February 14, 2012. The summary above covers all 313.
39 results from the 10 samples listed here: 2 detected, 37 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.
Units in this table
Combined Uranium is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 14:00, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.42 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 14:00, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.25 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 14:00, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Jan 1, 2012 – Mar 31, 2012 |
| Not detected below 0.42 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 14:00, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2012 14:14, sampling point TF101 | Combined Uranium 4006 EPA method 200.8 | Jan 1, 2012 – Mar 31, 2012 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 03:00, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 03:00, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 03:00, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 02:30, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 02:30, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 25, 2012 02:30, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2012 – Dec 31, 2012 |
|
||
| Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Dec 8, 2011 14:00, sampling point TF101 | Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 | Not recorded |
| Not detected below 0.42 pci/l Minimum Reporting Level , sample collected Dec 8, 2011 14:00, sampling point TF101 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.25 pci/l Minimum Reporting Level , sample collected Dec 8, 2011 14:00, sampling point TF101 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.42 pci/l Minimum Reporting Level , sample collected Dec 8, 2011 14:00, sampling point TF101 | Radium-228 4030 EPA method 904.0 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 2.89 pci/l Minimum Reporting Level , sample collected Nov 30, 2011 14:15, sampling point TF102 | Gross Alpha, Excl. Radon & U 4000 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.067 ug/l Minimum Reporting Level , sample collected Nov 30, 2011 14:15, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.687 pci/l Minimum Reporting Level , sample collected Nov 30, 2011 14:15, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.511 pci/l Minimum Reporting Level , sample collected Nov 30, 2011 14:15, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 0.687 pci/l Minimum Reporting Level , sample collected Nov 30, 2011 14:15, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Oct 1, 2011 – Dec 31, 2011 |
| Not detected below 2.89 pci/l Minimum Reporting Level , sample collected Nov 30, 2011 14:15, sampling point TF102 | Gross Alpha Particle Activity 4109 EPA method 900.0 | Oct 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 2.92 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 15:00, sampling point TF102 | Gross Alpha, Excl. Radon & U 4000 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.067 ug/l Minimum Reporting Level , sample collected Sep 27, 2011 15:00, sampling point TF102 | Combined Uranium 4006 EPA method 200.8 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.483 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 15:00, sampling point TF102 | Combined Radium (-226 & -228) 4010 | Not recorded |
| Not detected below 0.468 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 15:00, sampling point TF102 | Radium-226 4020 EPA method 903.1 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 0.483 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 15:00, sampling point TF102 | Radium-228 4030 EPA method 904.0 | Jul 1, 2011 – Sep 30, 2011 |
| Not detected below 2.92 pci/l Minimum Reporting Level , sample collected Sep 27, 2011 15:00, sampling point TF102 | Gross Alpha Particle Activity 4109 EPA method 900.0 | Jul 1, 2011 – Sep 30, 2011 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 1.31 ug/l , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 1.31 ug/l , sample collected Aug 31, 2011 01:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Aug 31, 2011 01:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Aug 10, 2011 03:30, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
-
- Collected
- Feb 14, 2012 14:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120215-080
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.36 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.42 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.25 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.42 pci/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
- Collected
- Feb 14, 2012 14:14
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120215-080RU
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Mar 31, 2012
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jan 25, 2012 03:00
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 120126-070NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Jan 25, 2012 02:30
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 120126-031NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2012
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Dec 8, 2011 14:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 111209-010
- Laboratory
- Radiation Safety Engineering
-
Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
- Result
- Not detected below 0.36 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.42 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.25 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.42 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Nov 30, 2011 14:15
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 291301011
- Laboratory
- Gel Laboratories
-
Gross Alpha, Excl. Radon & U 4000
- Result
- Not detected below 2.89 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.067 ug/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.687 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.511 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.687 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
Gross Alpha Particle Activity 4109 EPA method 900.0
- Result
- Not detected below 2.89 pci/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2011 – Dec 31, 2011
-
- Collected
- Sep 27, 2011 15:00
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 286822018
- Laboratory
- Gel Laboratories
-
Gross Alpha, Excl. Radon & U 4000
- Result
- Not detected below 2.92 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Combined Uranium 4006 EPA method 200.8
- Result
- Not detected below 0.067 ug/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Combined Radium (-226 & -228) 4010
- Result
- Not detected below 0.483 pci/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Radium-226 4020 EPA method 903.1
- Result
- Not detected below 0.468 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Radium-228 4030 EPA method 904.0
- Result
- Not detected below 0.483 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
Gross Alpha Particle Activity 4109 EPA method 900.0
- Result
- Not detected below 2.92 pci/l Minimum Reporting Level
- Monitoring period
- Jul 1, 2011 – Sep 30, 2011
-
- Collected
- Aug 31, 2011 01:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 110901-004TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 1.31 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 1.31 ug/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Aug 31, 2011 01:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 110901-004HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- Not detected below 0.006 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Aug 10, 2011 03:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 110811-017CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
Routine (10).