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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 51–60 of 246 samples, newest first — collected January 13, 2020 to January 20, 2021. The summary above covers all 246.

47 results from the 10 samples listed here: 18 detected, 29 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 51 to 60 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
Jan 20, 2021 15:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NA-210121-023
Laboratory
MSDH Lab
129 mg/l , sample collected Jan 20, 2021 15:00, sampling point TF102 Sodium 1052 EPA method 200.7 Not recorded
Collected
Jan 20, 2021 15:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NA-210121-001
Laboratory
MSDH Lab
129 mg/l , sample collected Jan 20, 2021 15:10, sampling point TF101 Sodium 1052 EPA method 200.7 Not recorded
Collected
Jan 20, 2021 14:15
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-210121-067
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:15, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:15, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:15, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jan 20, 2021 14:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-210121-050
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:40, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:40, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:40, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jul 13, 2020 13:15
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200715-003TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 13, 2020 13:15, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.46 ug/l , sample collected Jul 13, 2020 13:15, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 13, 2020 13:15, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 13, 2020 13:15, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.46 ug/l , sample collected Jul 13, 2020 13:15, sampling point MRT000 TTHM 2950 Jan 1, 2020 – Dec 31, 2020
Collected
Jul 13, 2020 13:15
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200715-003HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:15, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:15, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:15, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:15, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jul 13, 2020 13:15, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jul 13, 2020 13:15, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2020 – Dec 31, 2020
Collected
Apr 13, 2020 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
200414-008IN
Laboratory
MSDH Lab
0.0023 mg/l , sample collected Apr 13, 2020 13:30, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0333 mg/l , sample collected Apr 13, 2020 13:30, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:30, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0012 mg/l , sample collected Apr 13, 2020 13:30, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.5 mg/l , sample collected Apr 13, 2020 13:30, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:30, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:30, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.0052 mg/l , sample collected Apr 13, 2020 13:30, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:30, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:30, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0006 mg/l , sample collected Apr 13, 2020 13:30, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Apr 13, 2020 13:45
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
200414-007IN
Laboratory
MSDH Lab
0.0017 mg/l , sample collected Apr 13, 2020 13:45, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0339 mg/l , sample collected Apr 13, 2020 13:45, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:45, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0011 mg/l , sample collected Apr 13, 2020 13:45, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.49 mg/l , sample collected Apr 13, 2020 13:45, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:45, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:45, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.0048 mg/l , sample collected Apr 13, 2020 13:45, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:45, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 13, 2020 13:45, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0006 mg/l , sample collected Apr 13, 2020 13:45, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Jan 13, 2020 12:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
200114-009NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 13, 2020 12:40, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 13, 2020 12:40, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 13, 2020 12:40, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Jan 13, 2020 12:55
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
200114-008NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 13, 2020 12:55, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 13, 2020 12:55, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 13, 2020 12:55, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020

Routine (10).