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
MS0070007 , Duncan Hill Water Supply
Duncan Hill Water Supply has been analysed for 75 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.
73 of these are chemical, radiological or water-quality analytes, and their results are on the chemical and radiological samples page — which counts 73, not 75, 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 | 32 | Jul 5, 2026 |
| 1,1,2-Trichloroethane 2985 | Organic Chemical | 32 | Jul 5, 2026 |
| 1,1-Dichloroethylene 2977 | Organic Chemical | 32 | Jul 5, 2026 |
| 1,2,4-Trichlorobenzene 2378 | Organic Chemical | 32 | Jul 5, 2026 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 32 | Jul 5, 2026 |
| 1,2-Dichloropropane 2983 | Organic Chemical | 32 | Jul 5, 2026 |
| Alkalinity, Total 1927 | Water Quality | 1 | Mar 14, 2017 |
| Antimony, Total 1074 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Arsenic 1005 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Barium 1010 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Benzene 2990 | Organic Chemical | 32 | Jul 5, 2026 |
| Beryllium, Total 1075 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 4 | Sep 6, 2017 |
| Bromoform 2942 | Organic Chemical | 4 | Sep 6, 2017 |
| Cadmium 1015 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Calcium 1016 | Inorganic Chemical | 1 | Mar 14, 2017 |
| Calculated Sodium NACA | Water Quality | 1 | Mar 14, 2017 |
| Carbon Dioxide 1901 | Water Quality | 1 | Mar 14, 2017 |
| Carbon Tetrachloride 2982 | Organic Chemical | 32 | Jul 5, 2026 |
| Chloride 1017 | Inorganic Chemical | 1 | Mar 14, 2017 |
| Chlorobenzene 2989 | Organic Chemical | 32 | Jul 5, 2026 |
| Chloroform 2941 | Organic Chemical | 4 | Sep 6, 2017 |
| Chromium 1020 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 32 | Jul 5, 2026 |
| Coliform (TCR) 3100 | Organism | 288 | Aug 10, 2026 |
| Color 1905 | Water Quality | 1 | Mar 14, 2017 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 16 | Jan 28, 2013 |
| Combined Uranium 4006 | Radionuclide | 12 | Apr 19, 2021 |
| Copper, Free 1022 | Inorganic Chemical | 80 | Jul 25, 2026 |
| Cyanide 1024 | Inorganic Chemical | 26 | Jul 5, 2026 |
| Dibromoacetic Acid 2454 | Organic Chemical | 4 | Sep 6, 2017 |
| Dibromochloromethane 2944 | Organic Chemical | 4 | Sep 6, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 | Sep 6, 2017 |
| Dichloromethane 2964 | Organic Chemical | 32 | Jul 5, 2026 |
| E. Coli 3014 | Organism | 89 | Aug 10, 2026 |
| Ethylbenzene 2992 | Organic Chemical | 32 | Jul 5, 2026 |
| Fluoride 1025 | Inorganic Chemical | 27 | Jan 14, 2025 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 4 | Jan 28, 2013 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 2 | Jun 13, 2012 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 12 | Jul 11, 2012 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 | Mar 14, 2017 |
| Iron 1028 | Inorganic Chemical | 1 | Mar 14, 2017 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 | Mar 14, 2017 |
| Lead 1030 | Inorganic Chemical | 80 | Jul 25, 2026 |
| Magnesium 1031 | Inorganic Chemical | 1 | Mar 14, 2017 |
| Manganese 1032 | Inorganic Chemical | 1 | Mar 14, 2017 |
| Mercury 1035 | Inorganic Chemical | 25 | Jan 14, 2025 |
| Monobromoacetic Acid 2453 | Organic Chemical | 4 | Sep 6, 2017 |
| Monochloroacetic Acid 2450 | Organic Chemical | 4 | Sep 6, 2017 |
| Nickel 1036 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Nitrate 1040 | Inorganic Chemical | 48 | Feb 2, 2026 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 48 | Feb 2, 2026 |
| Nitrite 1041 | Inorganic Chemical | 48 | Feb 2, 2026 |
| O-Dichlorobenzene 2968 | Organic Chemical | 32 | Jul 5, 2026 |
| P-Dichlorobenzene 2969 | Organic Chemical | 32 | Jul 5, 2026 |
| PH, Field Result PHFD | Water Quality | 1 | Mar 14, 2017 |
| Potassium 1042 | Inorganic Chemical | 1 | Mar 14, 2017 |
| Radium-226 4020 | Radionuclide | 16 | Jan 28, 2013 |
| Radium-228 4030 | Radionuclide | 16 | Jan 28, 2013 |
| Residue, Total, Filterable 1057 | Water Quality | 1 | Mar 14, 2017 |
| Selenium 1045 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Sodium 1052 | Inorganic Chemical | 6 | Oct 22, 2024 |
| Styrene 2996 | Organic Chemical | 32 | Jul 5, 2026 |
| Sulfate 1055 | Inorganic Chemical | 5 | Mar 14, 2017 |
| Tetrachloroethylene 2987 | Organic Chemical | 32 | Jul 5, 2026 |
| Thallium, Total 1085 | Inorganic Chemical | 26 | Jan 14, 2025 |
| Toluene 2991 | Organic Chemical | 32 | Jul 5, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 | Feb 10, 2025 |
| Trans-1,2-Dichloroethylene 2979 | Organic Chemical | 32 | Jul 5, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 4 | Sep 6, 2017 |
| Trichloroethylene 2984 | Organic Chemical | 32 | Jul 5, 2026 |
| TTHM 2950 | Organic Chemical | 8 | Feb 10, 2025 |
| Uranium-238 4009 | Radionuclide | 2 | Jan 17, 2006 |
| Vinyl Chloride 2976 | Organic Chemical | 32 | Jul 5, 2026 |
| Xylenes, Total 2955 | Organic Chemical | 32 | Jul 5, 2026 |
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.