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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

MS0470105 , Marshall Co Water Assn

18 of the 61 analytes this system has been tested for have been detected at least once, across 449 samples on record.

The other 43 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 449 samples on record, detections range from October 8, 2003 to July 9, 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 Marshall Co Water Assn, 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 313 of 313 results Sep 23, 2004 Jul 30, 2024
Lead 1030 Inorganic Chemical 184 of 313 results Sep 23, 2004 Jul 30, 2024
Barium 1010 Inorganic Chemical 14 of 14 results Oct 8, 2003 Mar 11, 2025
Sodium 1052 Inorganic Chemical 8 of 8 results Sep 17, 2019 Feb 25, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 14, 2011 Jul 19, 2012
Calcium 1016 Inorganic Chemical 4 of 4 results Nov 19, 2021 Dec 1, 2021
Chloride 1017 Inorganic Chemical 4 of 4 results Nov 19, 2021 Dec 1, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 4 of 4 results Nov 19, 2021 Dec 1, 2021
Alkalinity, Total 1927 Water Quality 4 of 4 results Nov 19, 2021 Dec 1, 2021
Xylenes, Total 2955 Organic Chemical 3 of 15 results Aug 2, 2023 Jul 9, 2026
Nickel 1036 Inorganic Chemical 3 of 14 results Mar 10, 2004 Mar 11, 2025
Chromium 1020 Inorganic Chemical 2 of 14 results Mar 1, 2016 Jul 12, 2023
Sulfate 1055 Inorganic Chemical 2 of 6 results Nov 19, 2021 Nov 19, 2021
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 2 of 20 results Aug 28, 2007 Jun 17, 2010
TTHM 2950 Organic Chemical 2 of 21 results Aug 28, 2007 Jun 17, 2010
Color 1905 Water Quality 1 of 4 results Dec 1, 2021 Dec 1, 2021
Dichloromethane 2964 Organic Chemical 1 of 15 results Aug 26, 2004 Aug 26, 2004
Selenium 1045 Inorganic Chemical 1 of 14 results Mar 10, 2004 Mar 10, 2004

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 241–250 of 449 samples, newest first — collected October 28, 2010 to October 28, 2010. The summary above covers all 449.

20 results from the 10 samples listed here: 13 detected, 7 not detected. Across the whole record it is 557 of 1,447. 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 Marshall Co Water Assn, every result from 241 to 250 of 449 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
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-030PB
Laboratory
MSDH Lab
0.289 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-029PB
Laboratory
MSDH Lab
0.0187 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-027PB
Laboratory
MSDH Lab
0.0198 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0005 mg/l , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-026PB
Laboratory
MSDH Lab
0.386 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0005 mg/l , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-025PB
Laboratory
MSDH Lab
0.0191 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
0.0008 mg/l , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-024PB
Laboratory
MSDH Lab
0.0284 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-023PB
Laboratory
MSDH Lab
0.0206 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-022PB
Laboratory
MSDH Lab
0.0194 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-021PB
Laboratory
MSDH Lab
0.0225 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Collected
Oct 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
101029-018PB
Laboratory
MSDH Lab
0.0231 mg/l , sample collected Oct 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2010 – Dec 31, 2010

Routine (10).