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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

MS0550063 , PRCUA-Picayune Water System

26 of the 56 analytes this system has been tested for have been detected at least once, across 290 samples on record.

The other 30 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 290 samples on record, detections range from October 15, 2003 to August 11, 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 PRCUA-Picayune Water System, 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 124 of 124 results Nov 1, 2010 Sep 26, 2023
Lead 1030 Inorganic Chemical 75 of 124 results Nov 1, 2010 Sep 26, 2023
Xylenes, Total 2955 Organic Chemical 20 of 71 results Aug 31, 2010 Aug 8, 2017
TTHM 2950 Organic Chemical 18 of 18 results Sep 1, 2010 Aug 11, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 17 of 18 results Sep 1, 2010 Aug 11, 2025
Chloroform 2941 Organic Chemical 15 of 15 results Sep 1, 2010 Aug 11, 2025
Barium 1010 Inorganic Chemical 15 of 15 results Oct 15, 2003 Jan 9, 2024
Dichloroacetic Acid 2451 Organic Chemical 14 of 15 results Sep 1, 2010 Aug 11, 2025
Trichloroacetic Acid 2452 Organic Chemical 14 of 15 results Sep 1, 2010 Aug 11, 2025
Bromodichloromethane 2943 Organic Chemical 13 of 15 results Sep 1, 2010 Aug 11, 2025
Dibromochloromethane 2944 Organic Chemical 12 of 15 results Sep 1, 2010 Aug 11, 2025
Fluoride 1025 Inorganic Chemical 12 of 15 results Oct 15, 2003 Jan 9, 2024
Ethylbenzene 2992 Organic Chemical 12 of 71 results Aug 31, 2010 Aug 26, 2015
Chromium 1020 Inorganic Chemical 8 of 15 results Oct 15, 2003 Jan 9, 2024
Dibromoacetic Acid 2454 Organic Chemical 5 of 15 results Jul 7, 2014 Feb 26, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 12, 2011 Jul 17, 2012
Sulfate 1055 Inorganic Chemical 4 of 4 results Oct 15, 2003 Mar 17, 2004
Bromoform 2942 Organic Chemical 3 of 15 results Dec 11, 2023 Jul 31, 2024
Nickel 1036 Inorganic Chemical 3 of 15 results Mar 22, 2006 Mar 31, 2014
Cyanide 1024 Inorganic Chemical 2 of 13 results May 23, 2017 Feb 23, 2021
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 33 results Aug 24, 2005 May 14, 2007
Monochloroacetic Acid 2450 Organic Chemical 1 of 15 results Jul 7, 2014 Jul 7, 2014
Nitrite 1041 Inorganic Chemical 1 of 33 results May 14, 2007 May 14, 2007
Nitrate 1040 Inorganic Chemical 1 of 33 results Aug 24, 2005 Aug 24, 2005
Arsenic 1005 Inorganic Chemical 1 of 15 results Apr 18, 2005 Apr 18, 2005
Antimony, Total 1074 Inorganic Chemical 1 of 15 results Oct 15, 2003 Oct 15, 2003

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 21–30 of 290 samples, newest first — collected March 6, 2023 to September 26, 2023. The summary above covers all 290.

19 results from the 10 samples listed here: 11 detected, 8 not detected. Across the whole record it is 398 of 2,217. 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 7 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 PRCUA-Picayune Water System, every result from 21 to 30 of 290 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
Sep 26, 2023 08:40
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-230928-028
Laboratory
MSDH Lab
0.0425 mg/l , sample collected Sep 26, 2023 08:40, sampling point LC0011 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 26, 2023 08:40, sampling point LC0011 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 26, 2023 04:30
Sampling point
LC0018 Location withheld
Sample type
Routine
Lab sample
PB-230928-026
Laboratory
MSDH Lab
0.0151 mg/l , sample collected Sep 26, 2023 04:30, sampling point LC0018 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 26, 2023 04:30, sampling point LC0018 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 26, 2023 05:25
Sampling point
LC0010 Location withheld
Sample type
Routine
Lab sample
PB-230928-025
Laboratory
MSDH Lab
0.0215 mg/l , sample collected Sep 26, 2023 05:25, sampling point LC0010 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 26, 2023 05:25, sampling point LC0010 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 26, 2023 07:00
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-230928-023
Laboratory
MSDH Lab
0.029 mg/l , sample collected Sep 26, 2023 07:00, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 26, 2023 07:00, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 26, 2023 08:30
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-230928-027
Laboratory
MSDH Lab
0.0069 mg/l , sample collected Sep 26, 2023 08:30, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.8 ug/l , sample collected Sep 26, 2023 08:30, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 25, 2023 14:00
Sampling point
LC0013 Location withheld
Sample type
Routine
Lab sample
PB-230928-022
Laboratory
MSDH Lab
0.0131 mg/l , sample collected Sep 25, 2023 14:00, sampling point LC0013 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.9 ug/l , sample collected Sep 25, 2023 14:00, sampling point LC0013 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 23, 2023 18:35
Sampling point
LC0020 Location withheld
Sample type
Routine
Lab sample
PB-230928-021
Laboratory
MSDH Lab
0.023 mg/l , sample collected Sep 23, 2023 18:35, sampling point LC0020 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 23, 2023 18:35, sampling point LC0020 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jun 19, 2023 13:15
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230620-004
Laboratory
MSDH Lab
20.2 ug/l , sample collected Jun 19, 2023 13:15, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 19, 2023 13:12
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230620-004
Laboratory
MSDH Lab
8 ug/l , sample collected Jun 19, 2023 13:12, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Dec 31, 2023
Collected
Mar 6, 2023 12:12
Sampling point
TF080
Sample type
Routine
Lab sample
NI-230307-034
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 6, 2023 12:12, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 6, 2023 12:12, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 6, 2023 12:12, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023

Routine (10).