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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 91–100 of 241 samples, newest first — collected November 19, 2019 to July 21, 2020. The summary above covers all 241.

24 results from the 10 samples listed here: 7 detected, 17 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 91 to 100 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 21, 2020 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200722-046PB
Laboratory
MSDH Lab
0.0891 mg/l , sample collected Jul 21, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0005 mg/l , sample collected Jul 21, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 21, 2020 09:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200722-045PB
Laboratory
MSDH Lab
0.0619 mg/l , sample collected Jul 21, 2020 09:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 21, 2020 09:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 21, 2020 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200722-044PB
Laboratory
MSDH Lab
0.1482 mg/l , sample collected Jul 21, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 21, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 21, 2020 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200722-043PB
Laboratory
MSDH Lab
0.0377 mg/l , sample collected Jul 21, 2020 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 21, 2020 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 21, 2020 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200722-042PB
Laboratory
MSDH Lab
0.0577 mg/l , sample collected Jul 21, 2020 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 21, 2020 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Jul 21, 2020 05:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200722-041PB
Laboratory
MSDH Lab
0.1199 mg/l , sample collected Jul 21, 2020 05:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 21, 2020 05:50, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Apr 6, 2020 11:25
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
200407-044NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 11:25, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 11:25, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 11:25, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Apr 6, 2020 11:10
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
200407-043NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 11:10, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 11:10, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 6, 2020 11:10, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Nov 19, 2019 13:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
191120-012NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 19, 2019 13:30, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 19, 2019 13:30, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 19, 2019 13:30, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Nov 19, 2019 13:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
191120-011NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 19, 2019 13:15, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 19, 2019 13:15, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 19, 2019 13:15, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019

Routine (10).