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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

MS0550060 , Pearl River Central W/A-Henley Field

35 of the 69 analytes this system has been tested for have been detected at least once, across 270 samples on record.

The other 34 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 270 samples on record, detections range from March 15, 2007 to May 11, 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 Pearl River Central W/A-Henley Field, 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 114 of 114 results Jul 9, 2008 Aug 8, 2024
Lead 1030 Inorganic Chemical 41 of 114 results Jul 9, 2008 Aug 6, 2024
TTHM 2950 Organic Chemical 29 of 31 results Mar 15, 2007 May 11, 2026
Chloroform 2941 Organic Chemical 26 of 27 results May 17, 2007 May 11, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 25 of 31 results Mar 15, 2007 Nov 18, 2025
Dichloroacetic Acid 2451 Organic Chemical 21 of 24 results Feb 27, 2008 Nov 18, 2025
Trichloroacetic Acid 2452 Organic Chemical 17 of 24 results Nov 6, 2008 Nov 18, 2025
Bromodichloromethane 2943 Organic Chemical 17 of 27 results Feb 27, 2008 Nov 18, 2025
Dibromochloromethane 2944 Organic Chemical 14 of 27 results Nov 6, 2008 Nov 18, 2025
Barium 1010 Inorganic Chemical 12 of 12 results Apr 16, 2008 Oct 16, 2024
Fluoride 1025 Inorganic Chemical 12 of 13 results Apr 16, 2008 Oct 16, 2024
Chromium 1020 Inorganic Chemical 10 of 12 results Apr 16, 2008 Oct 16, 2024
Gross Alpha Particle Activity 4109 Radionuclide 8 of 8 results Sep 26, 2011 Apr 5, 2012
Nitrite 1041 Inorganic Chemical 4 of 36 results Jul 9, 2008 Mar 27, 2025
Nickel 1036 Inorganic Chemical 4 of 12 results Apr 16, 2008 Apr 2, 2014
Sodium 1052 Inorganic Chemical 3 of 3 results Jun 25, 2018 Sep 18, 2019
Dibromoacetic Acid 2454 Organic Chemical 2 of 24 results Nov 6, 2008 Jun 18, 2025
Monobromoacetic Acid 2453 Organic Chemical 2 of 24 results Feb 27, 2008 Oct 15, 2020
Arsenic 1005 Inorganic Chemical 2 of 12 results Apr 2, 2014 Apr 2, 2014
Calcium 1016 Inorganic Chemical 1 of 1 result Jun 25, 2018 Jun 25, 2018
Chloride 1017 Inorganic Chemical 1 of 1 result Jun 25, 2018 Jun 25, 2018
Iron 1028 Inorganic Chemical 1 of 1 result Jun 25, 2018 Jun 25, 2018
Magnesium 1031 Inorganic Chemical 1 of 1 result Jun 25, 2018 Jun 25, 2018
Manganese 1032 Inorganic Chemical 1 of 1 result Jun 25, 2018 Jun 25, 2018
Potassium 1042 Inorganic Chemical 1 of 1 result Jun 25, 2018 Jun 25, 2018
Sulfate 1055 Inorganic Chemical 1 of 1 result Jun 25, 2018 Jun 25, 2018
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Jun 25, 2018 Jun 25, 2018
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Jun 25, 2018 Jun 25, 2018
Color 1905 Water Quality 1 of 1 result Jun 25, 2018 Jun 25, 2018
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Jun 25, 2018 Jun 25, 2018
Alkalinity, Total 1927 Water Quality 1 of 1 result Jun 25, 2018 Jun 25, 2018
Calculated Sodium NACA Water Quality 1 of 1 result Jun 25, 2018 Jun 25, 2018
PH, Field Result PHFD Water Quality 1 of 1 result Jun 25, 2018 Jun 25, 2018
Monochloroacetic Acid 2450 Organic Chemical 1 of 24 results Aug 9, 2017 Aug 9, 2017
Cadmium 1015 Inorganic Chemical 1 of 12 results Apr 16, 2008 Apr 16, 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 81–90 of 270 samples, newest first — collected March 21, 2017 to September 10, 2018. The summary above covers all 270.

60 results from the 10 samples listed here: 29 detected, 31 not detected. Across the whole record it is 379 of 1,415. 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-Henley Field, every result from 81 to 90 of 270 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 10, 2018 01:40
Sampling point
TF102
Sample type
Routine
Lab sample
180911-009IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:40, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0145 mg/l , sample collected Sep 10, 2018 01:40, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:40, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0013 mg/l , sample collected Sep 10, 2018 01:40, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.273 mg/l , sample collected Sep 10, 2018 01:40, sampling point TF102 Fluoride 1025 EPA method 300.0 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:40, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:40, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:40, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:40, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:40, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:40, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Sep 10, 2018 01:12
Sampling point
TF101
Sample type
Routine
Lab sample
180911-008IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:12, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0158 mg/l , sample collected Sep 10, 2018 01:12, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:12, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0013 mg/l , sample collected Sep 10, 2018 01:12, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.282 mg/l , sample collected Sep 10, 2018 01:12, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:12, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:12, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:12, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:12, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:12, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2018 01:12, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Jun 25, 2018
Sampling point
WL001
Sample type
Routine
Lab sample
180626-001PC
Laboratory
MSDH Lab
1.2364 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Calcium 1016 EPA method 200.8 Not recorded
4.079 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Chloride 1017 EPA method 300.0 Not recorded
0.292 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Fluoride 1025 EPA method 380-75WE Not recorded
0.0099 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Iron 1028 EPA method 200.8 Not recorded
0.0809 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Magnesium 1031 EPA method 200.8 Not recorded
0.0084 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Manganese 1032 EPA method 200.8 Not recorded
0.3922 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Potassium 1042 EPA method 200.8 Not recorded
70.6446 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Sodium 1052 EPA method 200.8 Not recorded
9.669 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Sulfate 1055 EPA method 300.0 Not recorded
158 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
11.8 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Alkalinity, Caco3 Stability 1067 EPA method 2320B Not recorded
5 units The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Color 1905 EPA method 2120B Not recorded
3.4 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
143 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Alkalinity, Total 1927 EPA method 2320B Not recorded
71.5 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 Calculated Sodium NACA EPA method CALCUL LAB Not recorded
8.7 ph The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 25, 2018, sampling point WL001 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Apr 18, 2018 12:30
Sampling point
TF101
Sample type
Routine
Lab sample
180419-007CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 18, 2018 12:30, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2016 – Dec 31, 2018
Collected
Mar 14, 2018 13:20
Sampling point
TF102
Sample type
Routine
Lab sample
180315-020NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 14, 2018 13:20, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 14, 2018 13:20, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 14, 2018 13:20, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Mar 14, 2018 13:20
Sampling point
TF101
Sample type
Routine
Lab sample
180315-010NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 14, 2018 13:20, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 14, 2018 13:20, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 14, 2018 13:20, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Aug 9, 2017 12:43
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
170810-007HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Aug 9, 2017 12:43, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Aug 9, 2017 12:43, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 9, 2017 12:43, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 9, 2017 12:43, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 9, 2017 12:43, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Aug 9, 2017 12:43, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 9, 2017 12:43
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
170810-007TH
Laboratory
MSDH Lab
7.6 ug/l , sample collected Aug 9, 2017 12:43, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 9, 2017 12:43, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
2.54 ug/l , sample collected Aug 9, 2017 12:43, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 9, 2017 12:43, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
10.1 ug/l , sample collected Aug 9, 2017 12:43, sampling point MRT000 TTHM 2950 Jan 1, 2015 – Dec 31, 2017
Collected
May 24, 2017 02:52
Sampling point
TF102
Sample type
Routine
Lab sample
170525-007CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 24, 2017 02:52, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2016 – Dec 31, 2018
Collected
Mar 21, 2017 02:40
Sampling point
TF102
Sample type
Routine
Lab sample
170322-030NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 21, 2017 02:40, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 21, 2017 02:40, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 21, 2017 02:40, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017

Routine (10).