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.
Analytes tested for
MS0050017 , North Benton W/A
North Benton W/A has been analysed for 59 analytes.
This is what has been looked for, not what has been found. Which of them have been detected, and when, is on the sample results page.
The agency also publishes one analyte list across every system it serves. That list carries no results and no counts, and it leaves out coliform and the other microbiological analytes — which this page does not.
57 of these are chemical, radiological or water-quality analytes, and their results are on the chemical and radiological samples page — which counts 57, not 59, for that reason. The other 2 — Coliform (TCR) and E. Coli — are organisms, and their records live with the coliform and microbial samples.
| Analyte | Kind | Results on record | Last collected |
|---|---|---|---|
| 1,1,1-Trichloroethane 2981 | Organic Chemical | 30 | Nov 1, 2021 |
| 1,1,2-Trichloroethane 2985 | Organic Chemical | 30 | Nov 1, 2021 |
| 1,1-Dichloroethylene 2977 | Organic Chemical | 30 | Nov 1, 2021 |
| 1,2,4-Trichlorobenzene 2378 | Organic Chemical | 30 | Nov 1, 2021 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 30 | Nov 1, 2021 |
| 1,2-Dichloropropane 2983 | Organic Chemical | 30 | Nov 1, 2021 |
| Antimony, Total 1074 | Inorganic Chemical | 52 | Jun 9, 2026 |
| Arsenic 1005 | Inorganic Chemical | 53 | Jun 9, 2026 |
| Barium 1010 | Inorganic Chemical | 52 | Jun 9, 2026 |
| Benzene 2990 | Organic Chemical | 30 | Nov 1, 2021 |
| Beryllium, Total 1075 | Inorganic Chemical | 52 | Jun 9, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 5 | Aug 29, 2017 |
| Bromoform 2942 | Organic Chemical | 5 | Aug 29, 2017 |
| Cadmium 1015 | Inorganic Chemical | 52 | Jun 9, 2026 |
| Carbon Tetrachloride 2982 | Organic Chemical | 30 | Nov 1, 2021 |
| Chlorobenzene 2989 | Organic Chemical | 30 | Nov 1, 2021 |
| Chloroform 2941 | Organic Chemical | 5 | Aug 29, 2017 |
| Chromium 1020 | Inorganic Chemical | 52 | Jun 9, 2026 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 30 | Nov 1, 2021 |
| Coliform (TCR) 3100 | Organism | 278 | Aug 5, 2026 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 2 | Nov 29, 2011 |
| Combined Uranium 4006 | Radionuclide | 4 | Sep 21, 2020 |
| Copper, Free 1022 | Inorganic Chemical | 75 | Aug 13, 2024 |
| Cyanide 1024 | Inorganic Chemical | 8 | May 5, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 4 | Aug 29, 2017 |
| Dibromochloromethane 2944 | Organic Chemical | 5 | Aug 29, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 | Aug 29, 2017 |
| Dichloromethane 2964 | Organic Chemical | 30 | Nov 1, 2021 |
| E. Coli 3014 | Organism | 95 | Aug 5, 2026 |
| Ethylbenzene 2992 | Organic Chemical | 30 | Nov 1, 2021 |
| Fluoride 1025 | Inorganic Chemical | 32 | Jun 9, 2026 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 4 | Sep 10, 2012 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 2 | Nov 29, 2011 |
| Lead 1030 | Inorganic Chemical | 75 | Aug 13, 2024 |
| Mercury 1035 | Inorganic Chemical | 47 | Jun 9, 2026 |
| Monobromoacetic Acid 2453 | Organic Chemical | 4 | Aug 29, 2017 |
| Monochloroacetic Acid 2450 | Organic Chemical | 4 | Aug 29, 2017 |
| Nickel 1036 | Inorganic Chemical | 49 | Dec 8, 2025 |
| Nitrate 1040 | Inorganic Chemical | 23 | Feb 2, 2026 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 23 | Feb 2, 2026 |
| Nitrite 1041 | Inorganic Chemical | 23 | Feb 2, 2026 |
| O-Dichlorobenzene 2968 | Organic Chemical | 30 | Nov 1, 2021 |
| P-Dichlorobenzene 2969 | Organic Chemical | 30 | Nov 1, 2021 |
| Radium-226 4020 | Radionuclide | 2 | Nov 29, 2011 |
| Radium-228 4030 | Radionuclide | 2 | Nov 29, 2011 |
| Selenium 1045 | Inorganic Chemical | 52 | Jun 9, 2026 |
| Sodium 1052 | Inorganic Chemical | 2 | Oct 14, 2024 |
| Styrene 2996 | Organic Chemical | 30 | Nov 1, 2021 |
| Tetrachloroethylene 2987 | Organic Chemical | 30 | Nov 1, 2021 |
| Thallium, Total 1085 | Inorganic Chemical | 52 | Jun 9, 2026 |
| Toluene 2991 | Organic Chemical | 30 | Nov 1, 2021 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 | Feb 3, 2025 |
| Trans-1,2-Dichloroethylene 2979 | Organic Chemical | 30 | Nov 1, 2021 |
| Trichloroacetic Acid 2452 | Organic Chemical | 4 | Aug 29, 2017 |
| Trichloroethylene 2984 | Organic Chemical | 30 | Nov 1, 2021 |
| TTHM 2950 | Organic Chemical | 8 | Feb 3, 2025 |
| Uranium-238 4009 | Radionuclide | 5 | Feb 26, 2007 |
| Vinyl Chloride 2976 | Organic Chemical | 30 | Nov 1, 2021 |
| Xylenes, Total 2955 | Organic Chemical | 30 | Nov 1, 2021 |
A result is one laboratory analysis for one analyte on one sample, whether or not anything was found. Counts cover every Accepted or Validated result on record, with no date range applied.
What an analyte is
“Analytes are contaminants and other elements (some of which are not necessarily contaminants), for which the drinking water is being analyzed.”
From the help text published with these pages.