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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

MS0230005 , Diamondhead Utilities-North

29 of the 60 analytes this system has been tested for have been detected at least once, across 605 samples on record.

The other 31 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 605 samples on record, detections range from August 28, 1992 to February 17, 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 Diamondhead Utilities-North, 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 286 of 320 results Aug 28, 1992 Jul 24, 2024
Lead 1030 Inorganic Chemical 216 of 320 results Aug 28, 1992 Jul 24, 2024
Barium 1010 Inorganic Chemical 33 of 33 results Jun 18, 2002 Feb 5, 2025
Fluoride 1025 Inorganic Chemical 33 of 33 results Jun 18, 2002 Feb 5, 2025
Chromium 1020 Inorganic Chemical 20 of 33 results Jun 18, 2002 Feb 5, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 13 of 13 results Jul 19, 2004 Feb 17, 2026
Nickel 1036 Inorganic Chemical 13 of 33 results Jan 30, 2006 Feb 5, 2025
Sodium 1052 Inorganic Chemical 12 of 12 results Sep 17, 2019 Jan 29, 2024
TTHM 2950 Organic Chemical 11 of 12 results Jul 30, 2007 Feb 17, 2026
Combined Radium (-226 & -228) 4010 Radionuclide 7 of 20 results Sep 28, 2009 Jul 1, 2020
Dichloroacetic Acid 2451 Organic Chemical 6 of 6 results Sep 15, 2008 Aug 26, 2020
Trichloroacetic Acid 2452 Organic Chemical 6 of 6 results Sep 15, 2008 Aug 26, 2020
Chloroform 2941 Organic Chemical 6 of 6 results Jul 30, 2007 Jul 22, 2019
Bromodichloromethane 2943 Organic Chemical 6 of 6 results Jul 30, 2007 Jul 22, 2019
Dibromochloromethane 2944 Organic Chemical 6 of 6 results Jul 30, 2007 Jul 22, 2019
Radium-226 4020 Radionuclide 6 of 20 results Sep 28, 2009 Nov 30, 2011
Sulfate 1055 Inorganic Chemical 6 of 6 results Jun 18, 2002 Feb 2, 2004
Arsenic 1005 Inorganic Chemical 5 of 33 results Oct 8, 2018 Feb 5, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 12 results Mar 26, 2012 Oct 3, 2012
Gross Alpha Particle Activity 4109 Radionuclide 5 of 12 results Sep 28, 2009 Sep 18, 2012
Carbon Tetrachloride 2982 Organic Chemical 4 of 69 results Jul 15, 2013 Oct 3, 2023
Radium-228 4030 Radionuclide 4 of 20 results Sep 28, 2009 Jul 1, 2020
Gross Beta Particle Activity 4100 Radionuclide 3 of 3 results Sep 28, 2009 Mar 15, 2010
Selenium 1045 Inorganic Chemical 3 of 33 results Mar 7, 2005 Mar 7, 2005
Dibromoacetic Acid 2454 Organic Chemical 2 of 6 results Jul 16, 2012 Aug 26, 2020
Dichloromethane 2964 Organic Chemical 2 of 69 results Oct 17, 2011 Jul 15, 2013
Monochloroacetic Acid 2450 Organic Chemical 1 of 6 results Jul 25, 2018 Jul 25, 2018
Cyanide 1024 Inorganic Chemical 1 of 33 results Sep 19, 2011 Sep 19, 2011
Gross Alpha, Excl. Radon & U 4000 Radionuclide 1 of 8 results Sep 28, 2009 Sep 28, 2009

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 11–20 of 605 samples, newest first — collected July 23, 2024 to February 5, 2025. The summary above covers all 605.

24 results from the 10 samples listed here: 11 detected, 13 not detected. Across the whole record it is 722 of 2,920. 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 6 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 Diamondhead Utilities-North, every result from 11 to 20 of 605 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
Feb 5, 2025 11:35
Sampling point
TF105
Sample type
Routine
Lab sample
NI-250206-046
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:35, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:35, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:35, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 5, 2025 11:21
Sampling point
TF104
Sample type
Routine
Lab sample
NI-250206-047
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:21, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:21, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:21, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 5, 2025 12:01
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-250206-045
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 12:01, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 12:01, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 12:01, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 5, 2025 11:01
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250206-048
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:01, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:01, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 11:01, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Jul 24, 2024 07:14
Sampling point
LC0039 Location withheld
Sample type
Routine
Lab sample
PB-240725-118
Laboratory
MSDH Lab
0.112 mg/l , sample collected Jul 24, 2024 07:14, sampling point LC0039 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.7 ug/l , sample collected Jul 24, 2024 07:14, sampling point LC0039 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 08:15
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-240725-105
Laboratory
MSDH Lab
0.18 mg/l , sample collected Jul 23, 2024 08:15, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 08:15, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 07:00
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-240725-104
Laboratory
MSDH Lab
0.1 mg/l , sample collected Jul 23, 2024 07:00, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.6 ug/l , sample collected Jul 23, 2024 07:00, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 05:21
Sampling point
LC0009 Location withheld
Sample type
Routine
Lab sample
PB-240725-102
Laboratory
MSDH Lab
0.0739 mg/l , sample collected Jul 23, 2024 05:21, sampling point LC0009 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.7 ug/l , sample collected Jul 23, 2024 05:21, sampling point LC0009 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 07:00
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-240725-100
Laboratory
MSDH Lab
0.122 mg/l , sample collected Jul 23, 2024 07:00, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
0.6 ug/l , sample collected Jul 23, 2024 07:00, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jul 23, 2024 06:45
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-240725-101
Laboratory
MSDH Lab
0.142 mg/l , sample collected Jul 23, 2024 06:45, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
4 ug/l , sample collected Jul 23, 2024 06:45, sampling point LC0014 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024

Routine (10).