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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

MS0550002 , Pearl River Central W/A-North

35 of the 73 analytes this system has been tested for have been detected at least once, across 180 samples on record.

The other 38 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 180 samples on record, detections range from October 15, 2003 to July 23, 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-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 61 of 61 results Aug 9, 2007 Sep 27, 2023
TTHM 2950 Organic Chemical 17 of 19 results Jul 28, 2004 May 11, 2026
Fluoride 1025 Inorganic Chemical 17 of 17 results Oct 15, 2003 Mar 20, 2025
Barium 1010 Inorganic Chemical 15 of 15 results Oct 15, 2003 Mar 20, 2025
Chloroform 2941 Organic Chemical 12 of 15 results Aug 28, 2013 May 11, 2026
Lead 1030 Inorganic Chemical 11 of 61 results Aug 9, 2007 Jul 12, 2017
Chromium 1020 Inorganic Chemical 10 of 15 results Oct 15, 2003 Mar 7, 2016
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 15, 2012 Oct 12, 2012
Bromodichloromethane 2943 Organic Chemical 9 of 15 results Dec 7, 2016 May 11, 2026
Dibromochloromethane 2944 Organic Chemical 8 of 15 results Dec 7, 2016 May 11, 2026
Sulfate 1055 Inorganic Chemical 6 of 6 results Oct 15, 2003 Jun 25, 2018
Dichloroacetic Acid 2451 Organic Chemical 5 of 15 results Dec 7, 2016 Nov 18, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 19 results Jun 23, 2010 Aug 14, 2025
Sodium 1052 Inorganic Chemical 3 of 3 results Nov 18, 2008 Jul 23, 2026
Cyanide 1024 Inorganic Chemical 3 of 15 results Oct 15, 2003 Feb 10, 2010
Calcium 1016 Inorganic Chemical 2 of 2 results Nov 18, 2008 Jun 25, 2018
Magnesium 1031 Inorganic Chemical 2 of 2 results Nov 18, 2008 Jun 25, 2018
Manganese 1032 Inorganic Chemical 2 of 2 results Nov 18, 2008 Jun 25, 2018
Potassium 1042 Inorganic Chemical 2 of 2 results Nov 18, 2008 Jun 25, 2018
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Nov 18, 2008 Jun 25, 2018
Alkalinity, Caco3 Stability 1067 Water Quality 2 of 2 results Nov 18, 2008 Jun 25, 2018
Color 1905 Water Quality 2 of 2 results Nov 18, 2008 Jun 25, 2018
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Nov 18, 2008 Jun 25, 2018
Alkalinity, Total 1927 Water Quality 2 of 2 results Nov 18, 2008 Jun 25, 2018
Calculated Sodium NACA Water Quality 2 of 2 results Nov 18, 2008 Jun 25, 2018
PH, Field Result PHFD Water Quality 2 of 2 results Nov 18, 2008 Jun 25, 2018
Nickel 1036 Inorganic Chemical 2 of 15 results Apr 29, 2013 Apr 29, 2013
Dichloromethane 2964 Organic Chemical 2 of 12 results Aug 26, 2004 Aug 26, 2004
Bromoform 2942 Organic Chemical 1 of 15 results May 11, 2026 May 11, 2026
Chloride 1017 Inorganic Chemical 1 of 2 results Jun 25, 2018 Jun 25, 2018
Iron 1028 Inorganic Chemical 1 of 2 results Jun 25, 2018 Jun 25, 2018
Monochloroacetic Acid 2450 Organic Chemical 1 of 15 results Dec 7, 2016 Dec 7, 2016
Trichloroacetic Acid 2452 Organic Chemical 1 of 15 results Dec 7, 2016 Dec 7, 2016
Carbon Dioxide 1901 Water Quality 1 of 1 result Nov 18, 2008 Nov 18, 2008
PH 1925 Water Quality 1 of 1 result Nov 18, 2008 Nov 18, 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 131–140 of 180 samples, newest first — collected August 9, 2007 to May 20, 2009. The summary above covers all 180.

47 results from the 10 samples listed here: 22 detected, 25 not detected. Across the whole record it is 225 of 909. 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-North, every result from 131 to 140 of 180 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
May 20, 2009
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
090521-001NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 20, 2009, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected May 20, 2009, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 20, 2009, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Nov 18, 2008
Sampling point
WL003 Well W003
Sample type
Routine
Lab sample
081119-001PC
Laboratory
MSDH Lab
1.82 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 Nov 18, 2008, sampling point WL003 Calcium 1016 EPA method 200.8 Not recorded
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Nov 18, 2008, sampling point WL003 Chloride 1017 EPA method 300.0 Not recorded
0.125 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 Nov 18, 2008, sampling point WL003 Fluoride 1025 EPA method 380-75WE Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 18, 2008, sampling point WL003 Iron 1028 EPA method 200.8 Not recorded
0.122 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 Nov 18, 2008, sampling point WL003 Magnesium 1031 EPA method 200.8 Not recorded
0.006 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 Nov 18, 2008, sampling point WL003 Manganese 1032 EPA method 200.8 Not recorded
0.765 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 Nov 18, 2008, sampling point WL003 Potassium 1042 EPA method 200.8 Not recorded
47.5 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 Nov 18, 2008, sampling point WL003 Sodium 1052 EPA method 200.8 Not recorded
7.67 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 Nov 18, 2008, sampling point WL003 Sulfate 1055 EPA method 300.0 Not recorded
128 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 Nov 18, 2008, sampling point WL003 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. 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 Nov 18, 2008, sampling point WL003 Alkalinity, Caco3 Stability 1067 EPA method 2320B Not recorded
2 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 Nov 18, 2008, sampling point WL003 Carbon Dioxide 1901 EPA method CALCUL LAB Not recorded
10 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 Nov 18, 2008, sampling point WL003 Color 1905 EPA method 2120B Not recorded
4.9 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 Nov 18, 2008, sampling point WL003 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
8.17 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 Nov 18, 2008, sampling point WL003 PH 1925 EPA method 150.1 Not recorded
112 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 Nov 18, 2008, sampling point WL003 Alkalinity, Total 1927 EPA method 2320B Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 18, 2008, sampling point WL003 Iron, Field Result FEFD EPA method 3500AL-D Not recorded
54.4 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 Nov 18, 2008, sampling point WL003 Calculated Sodium NACA EPA method CALCUL LAB Not recorded
8.8 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 Nov 18, 2008, sampling point WL003 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Jul 9, 2008
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
080710-034NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 9, 2008, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 9, 2008, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 9, 2008, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Jul 9, 2008
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
080710-033NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 9, 2008, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 9, 2008, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 9, 2008, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Sep 5, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070906-013HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2005 – Dec 31, 2007
Collected
Sep 5, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070906-002TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 5, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. 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 Sep 5, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
Aug 9, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070810-333PB
Laboratory
MSDH Lab
0.0076 mg/l , sample collected Aug 9, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 9, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 9, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070810-177PB
Laboratory
MSDH Lab
0.0544 mg/l , sample collected Aug 9, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 9, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 9, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070810-332PB
Laboratory
MSDH Lab
0.0046 mg/l , sample collected Aug 9, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 9, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Aug 9, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070810-329PB
Laboratory
MSDH Lab
0.0059 mg/l , sample collected Aug 9, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0007 mg/l , sample collected Aug 9, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).