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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; the list of samples further down is narrowed.

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

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 21–23 of 23 samples, newest first — collected October 9, 2024 to October 9, 2024. The summary above covers all 23.

23 results from the 3 samples listed here: 0 detected, 23 not detected. 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 21 to 23 of 23 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 9, 2024 11:12
Sampling point
TF081 TF081
Sample type
Routine
Lab sample
VO-241010-003
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Xylenes, Total 2955 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Dichloromethane 2964 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 O-Dichlorobenzene 2968 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 P-Dichlorobenzene 2969 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Vinyl Chloride 2976 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 1,1-Dichloroethylene 2977 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 1,2-Dichloroethane 2980 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 1,1,1-Trichloroethane 2981 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Carbon Tetrachloride 2982 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 1,2-Dichloropropane 2983 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Trichloroethylene 2984 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 1,1,2-Trichloroethane 2985 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Tetrachloroethylene 2987 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Chlorobenzene 2989 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Benzene 2990 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Toluene 2991 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Ethylbenzene 2992 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 11:12, sampling point TF081 Styrene 2996 EPA method 524.2 Not recorded
Collected
Oct 9, 2024 11:00
Sampling point
TF081 TF081
Sample type
Routine
Lab sample
CN-241010-006
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 9, 2024 11:00, sampling point TF081 Cyanide 1024 EPA method QC10204001X Oct 1, 2024 – Dec 31, 2024
Collected
Oct 9, 2024 10:50
Sampling point
TF081 TF081
Sample type
Routine
Lab sample
RU-241010-002
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 9, 2024 10:50, sampling point TF081 Combined Uranium 4006 EPA method 200.8 Oct 1, 2024 – Dec 31, 2024

Routine (3).