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
MS0310024 , Tri-County W/A #3-Summerland
Tri-County W/A #3-Summerland has been analysed for 55 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.
53 of these are chemical, radiological or water-quality analytes, and their results are on the chemical and radiological samples page — which counts 53, not 55, 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 | 28 | Mar 13, 2023 |
| 1,1,2-Trichloroethane 2985 | Organic Chemical | 28 | Mar 13, 2023 |
| 1,1-Dichloroethylene 2977 | Organic Chemical | 28 | Mar 13, 2023 |
| 1,2,4-Trichlorobenzene 2378 | Organic Chemical | 28 | Mar 13, 2023 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 28 | Mar 13, 2023 |
| 1,2-Dichloropropane 2983 | Organic Chemical | 28 | Mar 13, 2023 |
| Antimony, Total 1074 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Arsenic 1005 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Barium 1010 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Benzene 2990 | Organic Chemical | 28 | Mar 13, 2023 |
| Beryllium, Total 1075 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 15 | Feb 12, 2026 |
| Bromoform 2942 | Organic Chemical | 15 | Feb 12, 2026 |
| Cadmium 1015 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Carbon Tetrachloride 2982 | Organic Chemical | 28 | Mar 13, 2023 |
| Chlorobenzene 2989 | Organic Chemical | 28 | Mar 13, 2023 |
| Chloroform 2941 | Organic Chemical | 15 | Feb 12, 2026 |
| Chromium 1020 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 28 | Mar 13, 2023 |
| Coliform (TCR) 3100 | Organism | 527 | Jul 21, 2026 |
| Combined Uranium 4006 | Radionuclide | 8 | Oct 25, 2021 |
| Copper, Free 1022 | Inorganic Chemical | 60 | Jul 19, 2023 |
| Cyanide 1024 | Inorganic Chemical | 16 | Sep 3, 2025 |
| Dibromoacetic Acid 2454 | Organic Chemical | 13 | Feb 12, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 15 | Feb 12, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 13 | Feb 12, 2026 |
| Dichloromethane 2964 | Organic Chemical | 28 | Mar 13, 2023 |
| E. Coli 3014 | Organism | 194 | Jul 21, 2026 |
| Ethylbenzene 2992 | Organic Chemical | 28 | Mar 13, 2023 |
| Fluoride 1025 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Lead 1030 | Inorganic Chemical | 60 | Jul 19, 2023 |
| Mercury 1035 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Monobromoacetic Acid 2453 | Organic Chemical | 13 | Feb 12, 2026 |
| Monochloroacetic Acid 2450 | Organic Chemical | 13 | Feb 12, 2026 |
| Nickel 1036 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Nitrate 1040 | Inorganic Chemical | 43 | Feb 9, 2026 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 43 | Feb 9, 2026 |
| Nitrite 1041 | Inorganic Chemical | 43 | Feb 9, 2026 |
| O-Dichlorobenzene 2968 | Organic Chemical | 28 | Mar 13, 2023 |
| P-Dichlorobenzene 2969 | Organic Chemical | 28 | Mar 13, 2023 |
| Selenium 1045 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Sodium 1052 | Inorganic Chemical | 6 | Feb 3, 2025 |
| Styrene 2996 | Organic Chemical | 28 | Mar 13, 2023 |
| Sulfate 1055 | Inorganic Chemical | 2 | Feb 25, 2004 |
| Tetrachloroethylene 2987 | Organic Chemical | 28 | Mar 13, 2023 |
| Thallium, Total 1085 | Inorganic Chemical | 16 | Mar 3, 2025 |
| Toluene 2991 | Organic Chemical | 28 | Mar 13, 2023 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 19 | Feb 12, 2026 |
| Trans-1,2-Dichloroethylene 2979 | Organic Chemical | 28 | Mar 13, 2023 |
| Trichloroacetic Acid 2452 | Organic Chemical | 13 | Feb 12, 2026 |
| Trichloroethylene 2984 | Organic Chemical | 28 | Mar 13, 2023 |
| TTHM 2950 | Organic Chemical | 20 | Feb 12, 2026 |
| Uranium-238 4009 | Radionuclide | 1 | Feb 13, 2006 |
| Vinyl Chloride 2976 | Organic Chemical | 28 | Mar 13, 2023 |
| Xylenes, Total 2955 | Organic Chemical | 28 | Mar 13, 2023 |
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.