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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

MS0070016 , Poplar Springs W/A #1

22 of the 57 analytes this system has been tested for have been detected at least once, across 246 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 246 samples on record, detections range from December 7, 1993 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 Poplar Springs W/A #1, 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 72 of 87 results Dec 7, 1993 Sep 19, 2023
Lead 1030 Inorganic Chemical 67 of 87 results Dec 7, 1993 Sep 19, 2023
Barium 1010 Inorganic Chemical 20 of 20 results Jul 23, 2002 Jan 15, 2025
Fluoride 1025 Inorganic Chemical 19 of 20 results Jul 23, 2002 Jan 15, 2025
Arsenic 1005 Inorganic Chemical 18 of 20 results Dec 12, 2005 Jan 15, 2025
Selenium 1045 Inorganic Chemical 16 of 20 results Jul 23, 2002 May 3, 2022
Chromium 1020 Inorganic Chemical 15 of 20 results Jul 23, 2002 Jan 15, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 13 of 46 results May 5, 2008 Jan 9, 2024
Nickel 1036 Inorganic Chemical 12 of 20 results Jul 23, 2002 Jan 15, 2025
Nitrate 1040 Inorganic Chemical 12 of 46 results Aug 24, 2005 Jan 9, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 13, 2011 Jul 11, 2012
TTHM 2950 Organic Chemical 7 of 24 results Jun 27, 2007 Aug 11, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Oct 1, 2019 Oct 21, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 23 results Jun 27, 2007 Mar 6, 2024
Nitrite 1041 Inorganic Chemical 5 of 46 results Jan 18, 2011 Jan 17, 2023
Bromoform 2942 Organic Chemical 3 of 19 results Jul 10, 2019 Aug 11, 2025
Dibromoacetic Acid 2454 Organic Chemical 2 of 17 results Aug 13, 2008 Jul 13, 2020
Thallium, Total 1085 Inorganic Chemical 2 of 20 results Apr 13, 2020 Apr 13, 2020
Cadmium 1015 Inorganic Chemical 2 of 20 results Dec 12, 2005 Dec 12, 2005
Cyanide 1024 Inorganic Chemical 1 of 19 results Apr 24, 2018 Apr 24, 2018
Dichloroacetic Acid 2451 Organic Chemical 1 of 17 results Aug 13, 2014 Aug 13, 2014
Sulfate 1055 Inorganic Chemical 1 of 2 results Jul 23, 2002 Jul 23, 2002

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 181–190 of 246 samples, newest first — collected February 16, 2005 to November 28, 2006. The summary above covers all 246.

60 results from the 10 samples listed here: 25 detected, 35 not detected. Across the whole record it is 310 of 1,113. 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 Poplar Springs W/A #1, every result from 181 to 190 of 246 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
Nov 28, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
061129-030NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 28, 2006, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 28, 2006, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 28, 2006, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jan 18, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060119-010IN
Laboratory
MSDH Lab
0.001248 mg/l , sample collected Jan 18, 2006, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.157592 mg/l , sample collected Jan 18, 2006, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.179432 mg/l , sample collected Jan 18, 2006, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000689 mg/l , sample collected Jan 18, 2006, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.002904 mg/l , sample collected Jan 18, 2006, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF101 Uranium-238 4009 Not recorded
Collected
Jan 18, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060119-017CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Jan 18, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060119-010CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Jan 18, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060119-011IN
Laboratory
MSDH Lab
0.0013 mg/l , sample collected Jan 18, 2006, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.160375 mg/l , sample collected Jan 18, 2006, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.165572 mg/l , sample collected Jan 18, 2006, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000596 mg/l , sample collected Jan 18, 2006, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.00334 mg/l , sample collected Jan 18, 2006, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 18, 2006, sampling point TF102 Uranium-238 4009 Not recorded
Collected
Dec 12, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
051213-021IN
Laboratory
MSDH Lab
0.003813 mg/l , sample collected Dec 12, 2005, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.210273 mg/l , sample collected Dec 12, 2005, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000325 mg/l , sample collected Dec 12, 2005, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.00098 mg/l , sample collected Dec 12, 2005, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.170834 mg/l , sample collected Dec 12, 2005, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001379 mg/l , sample collected Dec 12, 2005, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.006162 mg/l , sample collected Dec 12, 2005, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF102 Uranium-238 4009 Not recorded
Collected
Dec 12, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
051213-022IN
Laboratory
MSDH Lab
0.003898 mg/l , sample collected Dec 12, 2005, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.205708 mg/l , sample collected Dec 12, 2005, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000332 mg/l , sample collected Dec 12, 2005, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001069 mg/l , sample collected Dec 12, 2005, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.172803 mg/l , sample collected Dec 12, 2005, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001425 mg/l , sample collected Dec 12, 2005, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.006047 mg/l , sample collected Dec 12, 2005, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2005, sampling point TF101 Uranium-238 4009 Not recorded
Collected
Aug 24, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050825-096NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 24, 2005, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 24, 2005, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 24, 2005, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 24, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050825-094NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 24, 2005, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
0.09 mg/l , sample collected Aug 24, 2005, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 24, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Feb 16, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050217-034CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 16, 2005, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007

Routine (10).