Chemical and radiological sample results

MS0550005 , Pearl River Central W/A

42 of the 73 analytes this system has been tested for have been detected at least once, across 571 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 571 samples on record, detections range from October 15, 2003 to July 21, 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 Pearl River Central W/A, 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	226 of 226 results	Jun 17, 2004	Jul 20, 2024
Lead 1030	Inorganic Chemical	59 of 226 results	Jun 17, 2004	Jul 20, 2024
Fluoride 1025	Inorganic Chemical	49 of 50 results	Oct 15, 2003	Apr 10, 2025
Barium 1010	Inorganic Chemical	48 of 48 results	Oct 15, 2003	Apr 10, 2025
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	37 of 38 results	Sep 5, 2007	May 11, 2026
TTHM 2950	Organic Chemical	37 of 38 results	Sep 5, 2007	May 11, 2026
Chloroform 2941	Organic Chemical	30 of 30 results	Sep 5, 2007	May 11, 2026
Dichloroacetic Acid 2451	Organic Chemical	29 of 29 results	Jun 24, 2010	May 11, 2026
Trichloroacetic Acid 2452	Organic Chemical	27 of 29 results	Aug 28, 2013	May 11, 2026
Chromium 1020	Inorganic Chemical	23 of 48 results	Oct 15, 2003	Mar 24, 2020
Bromodichloromethane 2943	Organic Chemical	22 of 30 results	Aug 28, 2013	May 11, 2026
Dibromochloromethane 2944	Organic Chemical	16 of 30 results	Aug 28, 2013	May 11, 2026
Gross Alpha, Incl. Radon & U 4002	Radionuclide	12 of 12 results	Mar 13, 2012	Sep 11, 2019
Sulfate 1055	Inorganic Chemical	12 of 12 results	Oct 15, 2003	Jun 25, 2018
Nickel 1036	Inorganic Chemical	11 of 48 results	Mar 22, 2006	Sep 10, 2018
Combined Radium (-226 & -228) 4010	Radionuclide	9 of 28 results	Dec 19, 2008	Sep 11, 2019
Sodium 1052	Inorganic Chemical	6 of 6 results	Jun 25, 2018	Jul 21, 2026
Monochloroacetic Acid 2450	Organic Chemical	5 of 29 results	Jun 2, 2014	Dec 18, 2019
Radium-226 4020	Radionuclide	5 of 26 results	Jun 29, 2009	Sep 11, 2019
Monobromoacetic Acid 2453	Organic Chemical	4 of 29 results	Jun 2, 2014	Dec 15, 2020
Radium-228 4030	Radionuclide	4 of 26 results	Dec 19, 2008	Sep 11, 2019
Gross Alpha, Excl. Radon & U 4000	Radionuclide	4 of 14 results	Jun 29, 2009	Oct 29, 2009
Gross Alpha Particle Activity 4109	Radionuclide	4 of 14 results	Jun 29, 2009	Oct 29, 2009
Dibromoacetic Acid 2454	Organic Chemical	3 of 29 results	Dec 4, 2013	Jul 6, 2016
Nitrate-Nitrite 1038	Inorganic Chemical	3 of 91 results	Jul 26, 2006	May 4, 2016
Nitrate 1040	Inorganic Chemical	3 of 91 results	Jul 26, 2006	May 4, 2016
Calcium 1016	Inorganic Chemical	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Chloride 1017	Inorganic Chemical	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Iron 1028	Inorganic Chemical	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Magnesium 1031	Inorganic Chemical	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Manganese 1032	Inorganic Chemical	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Potassium 1042	Inorganic Chemical	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Residue, Total, Filterable 1057	Water Quality	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Alkalinity, Caco3 Stability 1067	Water Quality	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Color 1905	Water Quality	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Hardness, Total (As Caco3) 1915	Water Quality	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Alkalinity, Total 1927	Water Quality	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Calculated Sodium NACA	Water Quality	2 of 2 results	Jun 25, 2018	Jun 25, 2018
PH, Field Result PHFD	Water Quality	2 of 2 results	Jun 25, 2018	Jun 25, 2018
Cyanide 1024	Inorganic Chemical	2 of 41 results	Oct 15, 2003	Feb 10, 2010
Nitrite 1041	Inorganic Chemical	2 of 91 results	Nov 29, 2004	Nov 21, 2005
Dichloromethane 2964	Organic Chemical	1 of 38 results	Aug 25, 2004	Aug 25, 2004

Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.

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The most recent samples, result by result

The table below lists 21–22 of 22 samples, newest first — collected March 20, 2025 to March 20, 2025. The summary above covers all 22.

32 results from the 2 samples listed here: 2 detected, 30 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 Pearl River Central W/A, every result from 21 to 22 of 22 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 Mar 20, 2025 13:21 Sampling point TF103 Treatment Plant T103 Sample type Routine Lab sample IN-250321-004 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 20, 2025 13:21, sampling point TF103	Arsenic 1005 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
0.0113 mg/l , sample collected Mar 20, 2025 13:21, sampling point TF103	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 20, 2025 13:21, sampling point TF103	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 20, 2025 13:21, sampling point TF103	Chromium 1020 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
0.266 mg/l , sample collected Mar 20, 2025 13:21, sampling point TF103	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 20, 2025 13:21, sampling point TF103	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 20, 2025 13:21, sampling point TF103	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 20, 2025 13:21, sampling point TF103	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 20, 2025 13:21, sampling point TF103	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 20, 2025 13:21, sampling point TF103	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 20, 2025 13:21, sampling point TF103	Thallium, Total 1085 EPA method 200.8	Jan 1, 2023 – Dec 31, 2025
Collected Mar 20, 2025 12:08 Sampling point TF106 Treatment Facility TF106 Sample type Routine Lab sample VO-250321-001 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Xylenes, Total 2955 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Dichloromethane 2964 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	O-Dichlorobenzene 2968 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	P-Dichlorobenzene 2969 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Vinyl Chloride 2976 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	1,1-Dichloroethylene 2977 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	1,2-Dichloroethane 2980 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	1,1,1-Trichloroethane 2981 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Carbon Tetrachloride 2982 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	1,2-Dichloropropane 2983 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	1,1,2-Trichloroethane 2985 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Benzene 2990 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Toluene 2991 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 20, 2025 12:08, sampling point TF106	Styrene 2996 EPA method 524.2	Jan 1, 2025 – Dec 31, 2027

Collected
Mar 20, 2025 13:21

Sampling point
TF103 Treatment Plant T103

Sample type
Routine

Lab sample
IN-250321-004

Laboratory
MSDH Lab
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Barium 1010 EPA method 200.8
  
  Result
  0.0113 mg/l
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Chromium 1020 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Fluoride 1025 EPA method QC 10-109-12-2-A
  
  Result
  0.266 mg/l
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Nickel 1036 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.0025 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2023 – Dec 31, 2025
Collected
Mar 20, 2025 12:08

Sampling point
TF106 Treatment Facility TF106

Sample type
Routine

Lab sample
VO-250321-001

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2027
- 1,2,4-Trichlorobenzene 2378 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Cis-1,2-Dichloroethylene 2380 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Xylenes, Total 2955 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Dichloromethane 2964 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- O-Dichlorobenzene 2968 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- P-Dichlorobenzene 2969 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Vinyl Chloride 2976 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1-Dichloroethylene 2977 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trans-1,2-Dichloroethylene 2979 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloroethane 2980 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,1-Trichloroethane 2981 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Carbon Tetrachloride 2982 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloropropane 2983 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trichloroethylene 2984 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,2-Trichloroethane 2985 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Tetrachloroethylene 2987 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Chlorobenzene 2989 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Benzene 2990 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Toluene 2991 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Ethylbenzene 2992 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Styrene 2996 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level

Routine (2).