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
MS0590002 , Big V Water Association
Big V Water Association 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 | 39 | May 12, 2025 |
| 1,1,2-Trichloroethane 2985 | Organic Chemical | 39 | May 12, 2025 |
| 1,1-Dichloroethylene 2977 | Organic Chemical | 39 | May 12, 2025 |
| 1,2,4-Trichlorobenzene 2378 | Organic Chemical | 39 | May 12, 2025 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 39 | May 12, 2025 |
| 1,2-Dichloropropane 2983 | Organic Chemical | 39 | May 12, 2025 |
| Alkalinity, Total 1927 | Water Quality | 1 | Apr 8, 2015 |
| Antimony, Total 1074 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Arsenic 1005 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Asbestos 1094 | Inorganic Chemical | 2 | Sep 11, 2019 |
| Barium 1010 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Benzene 2990 | Organic Chemical | 39 | May 12, 2025 |
| Beryllium, Total 1075 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 16 | Jun 15, 2026 |
| Bromoform 2942 | Organic Chemical | 16 | Jun 15, 2026 |
| Cadmium 1015 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Calcium 1016 | Inorganic Chemical | 1 | Apr 8, 2015 |
| Calculated Sodium NACA | Water Quality | 1 | Apr 8, 2015 |
| Carbon Dioxide 1901 | Water Quality | 1 | Apr 8, 2015 |
| Carbon Tetrachloride 2982 | Organic Chemical | 39 | May 12, 2025 |
| Chloride 1017 | Inorganic Chemical | 1 | Apr 8, 2015 |
| Chlorobenzene 2989 | Organic Chemical | 39 | May 12, 2025 |
| Chloroform 2941 | Organic Chemical | 16 | Jun 15, 2026 |
| Chromium 1020 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 39 | May 12, 2025 |
| Coliform (TCR) 3100 | Organism | 1,378 | Jul 22, 2026 |
| Color 1905 | Water Quality | 1 | Apr 8, 2015 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 12 | Nov 19, 2013 |
| Combined Uranium 4006 | Radionuclide | 14 | Mar 8, 2022 |
| Copper, Free 1022 | Inorganic Chemical | 166 | Sep 25, 2025 |
| Cyanide 1024 | Inorganic Chemical | 34 | May 12, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 14 | Jun 15, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 16 | Jun 15, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 14 | Jun 15, 2026 |
| Dichloromethane 2964 | Organic Chemical | 39 | May 12, 2025 |
| E. Coli 3014 | Organism | 351 | Jul 22, 2026 |
| Ethylbenzene 2992 | Organic Chemical | 39 | May 12, 2025 |
| Fluoride 1025 | Inorganic Chemical | 24 | Apr 9, 2025 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 1 | Sep 11, 2013 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 11 | Nov 19, 2013 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 1 | Apr 8, 2015 |
| Iron 1028 | Inorganic Chemical | 1 | Apr 8, 2015 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 | Apr 8, 2015 |
| Lead 1030 | Inorganic Chemical | 166 | Sep 25, 2025 |
| Magnesium 1031 | Inorganic Chemical | 1 | Apr 8, 2015 |
| Manganese 1032 | Inorganic Chemical | 1 | Apr 8, 2015 |
| Mercury 1035 | Inorganic Chemical | 23 | Sep 15, 2025 |
| Monobromoacetic Acid 2453 | Organic Chemical | 14 | Jun 15, 2026 |
| Monochloroacetic Acid 2450 | Organic Chemical | 14 | Jun 15, 2026 |
| Nickel 1036 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Nitrate 1040 | Inorganic Chemical | 49 | Apr 9, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 49 | Apr 9, 2025 |
| Nitrite 1041 | Inorganic Chemical | 49 | Apr 9, 2025 |
| O-Dichlorobenzene 2968 | Organic Chemical | 39 | May 12, 2025 |
| P-Dichlorobenzene 2969 | Organic Chemical | 39 | May 12, 2025 |
| PH, Field Result PHFD | Water Quality | 1 | Apr 8, 2015 |
| Potassium 1042 | Inorganic Chemical | 1 | Apr 8, 2015 |
| Radium-226 4020 | Radionuclide | 12 | Nov 19, 2013 |
| Radium-228 4030 | Radionuclide | 12 | Nov 19, 2013 |
| Residue, Total, Filterable 1057 | Water Quality | 1 | Apr 8, 2015 |
| Selenium 1045 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Sodium 1052 | Inorganic Chemical | 10 | Dec 15, 2025 |
| Styrene 2996 | Organic Chemical | 39 | May 12, 2025 |
| Sulfate 1055 | Inorganic Chemical | 2 | Apr 8, 2015 |
| Tetrachloroethylene 2987 | Organic Chemical | 39 | May 12, 2025 |
| Thallium, Total 1085 | Inorganic Chemical | 23 | Apr 9, 2025 |
| Toluene 2991 | Organic Chemical | 39 | May 12, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 20 | Jun 15, 2026 |
| Trans-1,2-Dichloroethylene 2979 | Organic Chemical | 39 | May 12, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 14 | Jun 15, 2026 |
| Trichloroethylene 2984 | Organic Chemical | 39 | May 12, 2025 |
| TTHM 2950 | Organic Chemical | 21 | Jun 15, 2026 |
| Uranium-238 4009 | Radionuclide | 2 | Mar 27, 2006 |
| Vinyl Chloride 2976 | Organic Chemical | 39 | May 12, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 39 | May 12, 2025 |
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.