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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 141–150 of 213 samples, newest first — collected October 11, 2007 to October 11, 2007. The summary above covers all 213.

20 results from the 10 samples listed here: 20 detected, 0 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.

Chemical and radiological sample results for North Benton W/A, every result from 141 to 150 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
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-097PB
Laboratory
MSDH Lab
0.0068 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0107 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-096PB
Laboratory
MSDH Lab
0.0146 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.001 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-095PB
Laboratory
MSDH Lab
0.0084 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0078 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-094PB
Laboratory
MSDH Lab
0.0123 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0009 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-093PB
Laboratory
MSDH Lab
0.0061 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0061 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-092PB
Laboratory
MSDH Lab
0.006 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0005 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-091PB
Laboratory
MSDH Lab
0.0061 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0069 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-090PB
Laboratory
MSDH Lab
0.0087 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0008 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-089PB
Laboratory
MSDH Lab
0.0079 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0006 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
Collected
Oct 11, 2007
Sampling point
DS000
Sample type
Routine
Lab sample
071016-088PB
Laboratory
MSDH Lab
0.0165 mg/l , sample collected Oct 11, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007
0.0028 mg/l , sample collected Oct 11, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2007 – Dec 31, 2007

Routine (10).