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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

MS0460013 , West Marion Water Association

19 of the 56 analytes this system has been tested for have been detected at least once, across 241 samples on record.

The other 37 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 241 samples on record, detections range from October 8, 2003 to July 7, 2026. 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 West Marion Water Association, 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 Sep 6, 2023
Lead 1030 Inorganic Chemical 32 of 60 results Jul 31, 2007 Sep 6, 2023
Barium 1010 Inorganic Chemical 22 of 22 results Oct 8, 2003 Oct 8, 2025
Fluoride 1025 Inorganic Chemical 21 of 22 results Oct 8, 2003 Oct 8, 2025
TTHM 2950 Organic Chemical 19 of 19 results Jul 12, 2004 Aug 18, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 14 of 20 results Aug 20, 2007 Aug 18, 2025
Chloroform 2941 Organic Chemical 14 of 14 results Aug 20, 2007 Aug 18, 2025
Bromodichloromethane 2943 Organic Chemical 11 of 14 results Aug 20, 2007 Aug 18, 2025
Dibromochloromethane 2944 Organic Chemical 10 of 14 results Aug 20, 2007 Aug 18, 2025
Chromium 1020 Inorganic Chemical 10 of 22 results Mar 8, 2004 Jul 9, 2025
Dichloroacetic Acid 2451 Organic Chemical 9 of 14 results Jun 15, 2010 Aug 18, 2025
Trichloroacetic Acid 2452 Organic Chemical 9 of 14 results Aug 13, 2013 Aug 18, 2025
Sodium 1052 Inorganic Chemical 7 of 7 results Sep 17, 2019 Jul 7, 2026
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Mar 12, 2012 Oct 10, 2012
Nickel 1036 Inorganic Chemical 4 of 22 results Sep 27, 2022 Apr 7, 2025
Sulfate 1055 Inorganic Chemical 4 of 4 results Oct 8, 2003 Mar 8, 2004
Xylenes, Total 2955 Organic Chemical 1 of 22 results Apr 1, 2025 Apr 1, 2025
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Sep 14, 2020 Sep 14, 2020
Nitrite 1041 Inorganic Chemical 1 of 48 results Aug 22, 2005 Aug 22, 2005

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 161–170 of 241 samples, newest first — collected February 27, 2012 to July 9, 2012. The summary above covers all 241.

34 results from the 10 samples listed here: 5 detected, 29 not detected. Across the whole record it is 254 of 1,224. 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 West Marion Water Association, every result from 161 to 170 of 241 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
Jul 9, 2012 02:40
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120710-027IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 02:40, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00473 mg/l , sample collected Jul 9, 2012 02:40, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 02:40, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.00115 mg/l , sample collected Jul 9, 2012 02:40, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.158 mg/l , sample collected Jul 9, 2012 02:40, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 02:40, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 02:40, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 02:40, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 02:40, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 02:40, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 9, 2012 02:40, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
May 21, 2012 14:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120522-092
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected May 21, 2012 14:00, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.47 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:00, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.47 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:00, sampling point TF102 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected May 21, 2012 14:00, sampling point TF102 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 13:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120522-142
Laboratory
Radiation Safety Engineering
Not detected below 0.31 pci/l Minimum Reporting Level , sample collected May 21, 2012 13:15, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.552 pci/l Minimum Reporting Level , sample collected May 21, 2012 13:15, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.552 pci/l Minimum Reporting Level , sample collected May 21, 2012 13:15, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.46 pci/l Minimum Reporting Level , sample collected May 21, 2012 13:15, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 13:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120522-142RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 21, 2012 13:15, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 14:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120522-092RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 21, 2012 14:00, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Apr 1, 2012 – Jun 30, 2012
Collected
Mar 12, 2012 12:53
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120313-010
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Mar 12, 2012 12:53, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.47 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 12:53, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.47 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 12:53, sampling point TF102 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 12:53, sampling point TF102 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 12, 2012 13:25
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120313-131
Laboratory
Radiation Safety Engineering
Not detected below 0.31 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 13:25, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.552 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 13:25, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.552 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 13:25, sampling point TF101 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.46 pci/l Minimum Reporting Level , sample collected Mar 12, 2012 13:25, sampling point TF101 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 12, 2012 13:25
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120313-131RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 12, 2012 13:25, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 12, 2012 12:53
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120313-010RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 12, 2012 12:53, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 27, 2012 10:05
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120228-062NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 27, 2012 10:05, 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 Feb 27, 2012 10:05, 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 Feb 27, 2012 10:05, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012

Routine (10).