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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

MS0050017 , North Benton W/A

21 of the 57 analytes this system has been tested for have been detected at least once, across 213 samples on record.

The other 36 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 213 samples on record, detections range from May 3, 2004 to June 9, 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 North Benton 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 75 of 75 results Dec 28, 2004 Aug 13, 2024
Barium 1010 Inorganic Chemical 52 of 52 results Nov 15, 2004 Jun 9, 2026
Arsenic 1005 Inorganic Chemical 41 of 53 results Nov 15, 2004 Jun 9, 2026
Lead 1030 Inorganic Chemical 38 of 75 results Dec 28, 2004 Jun 29, 2021
Fluoride 1025 Inorganic Chemical 31 of 32 results Nov 15, 2004 Jun 9, 2026
Chromium 1020 Inorganic Chemical 31 of 52 results Feb 14, 2005 Dec 8, 2025
Nickel 1036 Inorganic Chemical 30 of 49 results Nov 15, 2004 Dec 8, 2025
TTHM 2950 Organic Chemical 5 of 8 results May 3, 2004 Feb 3, 2025
Selenium 1045 Inorganic Chemical 4 of 52 results Feb 14, 2005 Aug 25, 2008
Ethylbenzene 2992 Organic Chemical 4 of 30 results Jul 8, 2004 Sep 1, 2005
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 8 results Jun 25, 2007 Feb 3, 2025
Thallium, Total 1085 Inorganic Chemical 3 of 52 results Apr 25, 2007 Aug 25, 2008
Xylenes, Total 2955 Organic Chemical 3 of 30 results Sep 1, 2005 May 24, 2007
Mercury 1035 Inorganic Chemical 2 of 47 results Feb 14, 2005 Jun 9, 2026
Sodium 1052 Inorganic Chemical 2 of 2 results Jan 21, 2021 Oct 14, 2024
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 23 results Jan 17, 2023 Jan 17, 2023
Nitrite 1041 Inorganic Chemical 1 of 23 results Jan 17, 2023 Jan 17, 2023
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 2 results Nov 29, 2011 Nov 29, 2011
Radium-228 4030 Radionuclide 1 of 2 results Nov 29, 2011 Nov 29, 2011
Antimony, Total 1074 Inorganic Chemical 1 of 52 results Apr 25, 2007 Apr 25, 2007
Cadmium 1015 Inorganic Chemical 1 of 52 results Feb 14, 2005 Feb 14, 2005

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 11–20 of 213 samples, newest first — collected November 29, 2022 to August 13, 2024. The summary above covers all 213.

58 results from the 10 samples listed here: 24 detected, 34 not detected. Across the whole record it is 330 of 1,481. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 4 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for North Benton W/A, every result from 11 to 20 of 213 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
Aug 13, 2024 07:25
Sampling point
LC0015 Location withheld
Sample type
Routine
Lab sample
PB-240815-086
Laboratory
MSDH Lab
0.021 mg/l , sample collected Aug 13, 2024 07:25, sampling point LC0015 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 07:25, sampling point LC0015 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 13, 2024 08:30
Sampling point
LC0013 Location withheld
Sample type
Routine
Lab sample
PB-240815-090
Laboratory
MSDH Lab
0.0058 mg/l , sample collected Aug 13, 2024 08:30, sampling point LC0013 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 08:30, sampling point LC0013 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 13, 2024 04:00
Sampling point
LC0023 Location withheld
Sample type
Routine
Lab sample
PB-240815-087
Laboratory
MSDH Lab
0.0038 mg/l , sample collected Aug 13, 2024 04:00, sampling point LC0023 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 04:00, sampling point LC0023 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Aug 13, 2024 05:53
Sampling point
LC0008 Location withheld
Sample type
Routine
Lab sample
PB-240815-089
Laboratory
MSDH Lab
0.203 mg/l , sample collected Aug 13, 2024 05:53, sampling point LC0008 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 13, 2024 05:53, sampling point LC0008 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Feb 5, 2024 12:20
Sampling point
TF080
Sample type
Routine
Lab sample
IN-240206-017
Laboratory
MSDH Lab
0.0028 mg/l , sample collected Feb 5, 2024 12:20, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
0.0366 mg/l , sample collected Feb 5, 2024 12:20, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 12:20, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
0.0029 mg/l , sample collected Feb 5, 2024 12:20, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
0.126 mg/l , sample collected Feb 5, 2024 12:20, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 12:20, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
0.0006 mg/l , sample collected Feb 5, 2024 12:20, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 12:20, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 12:20, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 12:20, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 12:20, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Jan 8, 2024 11:49
Sampling point
TF080
Sample type
Routine
Lab sample
NI-240109-051
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:49, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:49, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 8, 2024 11:49, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
May 15, 2023 14:30
Sampling point
TF080
Sample type
Routine
Lab sample
IN-230516-020
Laboratory
MSDH Lab
0.0012 mg/l , sample collected May 15, 2023 14:30, sampling point TF080 Arsenic 1005 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
0.0326 mg/l , sample collected May 15, 2023 14:30, sampling point TF080 Barium 1010 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2023 14:30, sampling point TF080 Cadmium 1015 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
0.0005 mg/l , sample collected May 15, 2023 14:30, sampling point TF080 Chromium 1020 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
0.157 mg/l , sample collected May 15, 2023 14:30, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2023 14:30, sampling point TF080 Mercury 1035 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
0.0006 mg/l , sample collected May 15, 2023 14:30, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 15, 2023 14:30, sampling point TF080 Selenium 1045 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2023 14:30, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2023 14:30, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 15, 2023 14:30, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Collected
Feb 21, 2023 12:10
Sampling point
TF080
Sample type
Routine
Lab sample
IN-230222-008
Laboratory
MSDH Lab
0.0009 mg/l , sample collected Feb 21, 2023 12:10, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
0.0339 mg/l , sample collected Feb 21, 2023 12:10, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 12:10, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 12:10, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
0.141 mg/l , sample collected Feb 21, 2023 12:10, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 12:10, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
0.0005 mg/l , sample collected Feb 21, 2023 12:10, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 12:10, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 12:10, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 12:10, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 12:10, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Collected
Jan 17, 2023 13:00
Sampling point
TF080
Sample type
Routine
Lab sample
NI-230118-044
Laboratory
MSDH Lab
0.379 mg/l , sample collected Jan 17, 2023 13:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 17, 2023 13:00, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
0.362 mg/l , sample collected Jan 17, 2023 13:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Nov 29, 2022 12:10
Sampling point
TF080
Sample type
Routine
Lab sample
IN-221130-010
Laboratory
MSDH Lab
0.0014 mg/l , sample collected Nov 29, 2022 12:10, sampling point TF080 Arsenic 1005 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
0.0331 mg/l , sample collected Nov 29, 2022 12:10, sampling point TF080 Barium 1010 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 12:10, sampling point TF080 Cadmium 1015 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 12:10, sampling point TF080 Chromium 1020 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
0.129 mg/l , sample collected Nov 29, 2022 12:10, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 12:10, sampling point TF080 Mercury 1035 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
0.0008 mg/l , sample collected Nov 29, 2022 12:10, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 12:10, sampling point TF080 Selenium 1045 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 12:10, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 12:10, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 12:10, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022

Routine (10).