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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

MS0730026 , Mud Creek Water Association #4

20 of the 57 analytes this system has been tested for have been detected at least once, across 215 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 215 samples on record, detections range from November 5, 2003 to September 16, 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.

Every analyte ever detected for Mud Creek Water Association #4, 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 135 of 135 results Oct 6, 2004 Sep 16, 2025
Lead 1030 Inorganic Chemical 82 of 135 results Oct 6, 2004 Sep 16, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Nov 5, 2003 May 12, 2025
Fluoride 1025 Inorganic Chemical 10 of 10 results Nov 5, 2003 May 12, 2025
Chromium 1020 Inorganic Chemical 6 of 10 results Apr 5, 2004 May 12, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 11 results Jul 12, 2010 Sep 8, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 14, 2011 Jul 17, 2012
TTHM 2950 Organic Chemical 4 of 10 results Sep 20, 2007 Sep 8, 2025
Sodium 1052 Inorganic Chemical 2 of 2 results Sep 25, 2019 Apr 6, 2023
Sulfate 1055 Inorganic Chemical 2 of 2 results Nov 5, 2003 Apr 5, 2004
Bromoform 2942 Organic Chemical 1 of 5 results Sep 8, 2025 Sep 8, 2025
Bromodichloromethane 2943 Organic Chemical 1 of 5 results Sep 8, 2025 Sep 8, 2025
Dibromochloromethane 2944 Organic Chemical 1 of 5 results Sep 8, 2025 Sep 8, 2025
Nickel 1036 Inorganic Chemical 1 of 10 results May 12, 2025 May 12, 2025
Monobromoacetic Acid 2453 Organic Chemical 1 of 4 results Oct 29, 2020 Oct 29, 2020
Xylenes, Total 2955 Organic Chemical 1 of 8 results Sep 14, 2016 Sep 14, 2016
Ethylbenzene 2992 Organic Chemical 1 of 8 results Sep 14, 2016 Sep 14, 2016
Arsenic 1005 Inorganic Chemical 1 of 10 results Mar 3, 2010 Mar 3, 2010
Selenium 1045 Inorganic Chemical 1 of 10 results Mar 3, 2010 Mar 3, 2010
Nitrite 1041 Inorganic Chemical 1 of 21 results Jul 28, 2008 Jul 28, 2008

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 31–40 of 215 samples, newest first — collected October 18, 2022 to June 14, 2023. The summary above covers all 215.

27 results from the 10 samples listed here: 11 detected, 16 not detected. Across the whole record it is 271 of 711. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 5 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Mud Creek Water Association #4, every result from 31 to 40 of 215 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
Jun 14, 2023 08:15
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-230620-013
Laboratory
MSDH Lab
0.36 mg/l , sample collected Jun 14, 2023 08:15, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 14, 2023 08:15, sampling point LC0009 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 14, 2023 07:00
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230620-011
Laboratory
MSDH Lab
0.076 mg/l , sample collected Jun 14, 2023 07:00, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 14, 2023 07:00, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 14, 2023 06:45
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230620-014
Laboratory
MSDH Lab
0.345 mg/l , sample collected Jun 14, 2023 06:45, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 14, 2023 06:45, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 14, 2023 07:20
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230620-016
Laboratory
MSDH Lab
0.0095 mg/l , sample collected Jun 14, 2023 07:20, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
2.3 ug/l , sample collected Jun 14, 2023 07:20, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 14, 2023 05:45
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230620-015
Laboratory
MSDH Lab
0.0074 mg/l , sample collected Jun 14, 2023 05:45, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
3.9 ug/l , sample collected Jun 14, 2023 05:45, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Apr 6, 2023 09:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NA-230406-004
Laboratory
MSDH Lab
115 mg/l , sample collected Apr 6, 2023 09:30, sampling point TF101 Sodium 1052 EPA method 200.7 Not recorded
Collected
Apr 5, 2023 09:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-230406-010
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 5, 2023 09:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 5, 2023 09:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 5, 2023 09:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Dec 8, 2022 11:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-221209-003
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0093 mg/l , sample collected Dec 8, 2022 11:30, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.884 mg/l , sample collected Dec 8, 2022 11:30, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2022 11:30, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Oct 18, 2022 09:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-221019-002
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 18, 2022 09:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Oct 18, 2022 09:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-221019-002
Laboratory
MSDH Lab
1.44 ug/l , sample collected Oct 18, 2022 09:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded

Routine (10).