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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

MS0500007 , Central W/A-North Pearl River

21 of the 56 analytes this system has been tested for have been detected at least once, across 151 samples on record.

The other 35 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 151 samples on record, detections range from October 8, 2003 to May 19, 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 Central W/A-North Pearl River, 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 62 of 62 results Jul 31, 2007 Sep 12, 2023
Lead 1030 Inorganic Chemical 20 of 62 results Jul 31, 2007 Sep 12, 2023
TTHM 2950 Organic Chemical 19 of 19 results Jul 21, 2004 May 19, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 17 of 19 results Jun 15, 2010 May 19, 2026
Dichloroacetic Acid 2451 Organic Chemical 14 of 14 results Oct 2, 2007 May 19, 2026
Chloroform 2941 Organic Chemical 14 of 14 results Oct 25, 2007 May 19, 2026
Trichloroacetic Acid 2452 Organic Chemical 13 of 14 results Oct 2, 2007 May 19, 2026
Bromodichloromethane 2943 Organic Chemical 13 of 14 results Oct 25, 2007 May 19, 2026
Dibromochloromethane 2944 Organic Chemical 12 of 14 results Aug 12, 2013 May 19, 2026
Barium 1010 Inorganic Chemical 9 of 9 results Oct 8, 2003 Mar 18, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 13, 2011 Jul 18, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 5 results Dec 13, 2011 Jul 18, 2012
Radium-226 4020 Radionuclide 5 of 5 results Dec 13, 2011 Jul 18, 2012
Chromium 1020 Inorganic Chemical 4 of 9 results Oct 8, 2003 Oct 3, 2022
Nickel 1036 Inorganic Chemical 4 of 9 results Mar 8, 2004 Oct 3, 2022
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 18, 2019 Feb 25, 2025
Fluoride 1025 Inorganic Chemical 2 of 9 results Oct 8, 2003 Mar 18, 2025
Sulfate 1055 Inorganic Chemical 2 of 2 results Oct 8, 2003 Mar 8, 2004
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Sep 21, 2020 Sep 21, 2020
Selenium 1045 Inorganic Chemical 1 of 9 results Apr 4, 2005 Apr 4, 2005
Cadmium 1015 Inorganic Chemical 1 of 9 results Mar 8, 2004 Mar 8, 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 9 samples collected between September 25, 2024 and September 25, 2026 are listed below, newest first.

71 results from the 9 samples listed here: 38 detected, 33 not detected. 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 2 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 Central W/A-North Pearl River, every result from the 9 samples on record, 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
May 19, 2026 09:10
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-192847-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected May 19, 2026 09:10, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
3.4 ug/l , sample collected May 19, 2026 09:10, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
2.9 ug/l , sample collected May 19, 2026 09:10, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2026 09:10, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 19, 2026 09:10, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
6.3 ug/l , sample collected May 19, 2026 09:10, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2026 – Dec 31, 2026
7.3 ug/l , sample collected May 19, 2026 09:10, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 19, 2026 09:10, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
4 ug/l , sample collected May 19, 2026 09:10, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2 ug/l , sample collected May 19, 2026 09:10, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
13.3 ug/l , sample collected May 19, 2026 09:10, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2026 – Dec 31, 2026
Collected
Sep 22, 2025 14:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-250923-026
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 22, 2025 14:30, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Apr 29, 2025 09:50
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-146553-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Apr 29, 2025 09:50, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
1.8 ug/l , sample collected Apr 29, 2025 09:50, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
1.7 ug/l , sample collected Apr 29, 2025 09:50, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 29, 2025 09:50, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 29, 2025 09:50, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
3.5 ug/l , sample collected Apr 29, 2025 09:50, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
4.1 ug/l , sample collected Apr 29, 2025 09:50, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 29, 2025 09:50, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
2.1 ug/l , sample collected Apr 29, 2025 09:50, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.2 ug/l , sample collected Apr 29, 2025 09:50, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
7.4 ug/l , sample collected Apr 29, 2025 09:50, sampling point SM1 TTHM 2950 EPA method 524.2 Apr 1, 2025 – Jun 30, 2025
Collected
Apr 29, 2025 10:25
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-146553-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Apr 29, 2025 10:25, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
3 ug/l , sample collected Apr 29, 2025 10:25, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
2.4 ug/l , sample collected Apr 29, 2025 10:25, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 29, 2025 10:25, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Apr 29, 2025 10:25, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
5.4 ug/l , sample collected Apr 29, 2025 10:25, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2025 – Jun 30, 2025
5.5 ug/l , sample collected Apr 29, 2025 10:25, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 29, 2025 10:25, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
3.3 ug/l , sample collected Apr 29, 2025 10:25, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.1 ug/l , sample collected Apr 29, 2025 10:25, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
10.9 ug/l , sample collected Apr 29, 2025 10:25, sampling point SM2 TTHM 2950 EPA method 524.2 Apr 1, 2025 – Jun 30, 2025
Collected
Mar 25, 2025 15:40
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-250326-052
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 25, 2025 15:40, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 25, 2025 15:40, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 25, 2025 15:40, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 18, 2025 15:10
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-250319-057
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0435 mg/l , sample collected Mar 18, 2025 15:10, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.121 mg/l , sample collected Mar 18, 2025 15:10, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 18, 2025 15:10, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 25, 2025 13:25
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-250226-076
Laboratory
MSDH Lab
30 mg/l , sample collected Feb 25, 2025 13:25, sampling point TF080 Sodium 1052 EPA method 200.7 Jan 1, 2023 – Dec 31, 2025
Collected
Nov 12, 2024 11:15
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-128107-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 12, 2024 11:15, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
2 ug/l , sample collected Nov 12, 2024 11:15, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
1.7 ug/l , sample collected Nov 12, 2024 11:15, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 12, 2024 11:15, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 12, 2024 11:15, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
3.7 ug/l , sample collected Nov 12, 2024 11:15, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
4.9 ug/l , sample collected Nov 12, 2024 11:15, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 12, 2024 11:15, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
2.9 ug/l , sample collected Nov 12, 2024 11:15, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.8 ug/l , sample collected Nov 12, 2024 11:15, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
9.6 ug/l , sample collected Nov 12, 2024 11:15, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Nov 12, 2024 10:40
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-128107-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 12, 2024 10:40, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
1.7 ug/l , sample collected Nov 12, 2024 10:40, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
1.7 ug/l , sample collected Nov 12, 2024 10:40, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 12, 2024 10:40, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 12, 2024 10:40, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
3.4 ug/l , sample collected Nov 12, 2024 10:40, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
4.9 ug/l , sample collected Nov 12, 2024 10:40, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 12, 2024 10:40, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
2.7 ug/l , sample collected Nov 12, 2024 10:40, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.7 ug/l , sample collected Nov 12, 2024 10:40, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
9.3 ug/l , sample collected Nov 12, 2024 10:40, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024

Routine (9).