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
MS0260003 , Castalian W/A
Castalian W/A has been analysed for 53 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.
51 of these are chemical, radiological or water-quality analytes, and their results are on the chemical and radiological samples page — which counts 51, not 53, 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 | 4 | Jul 26, 2004 |
| 1,1,2-Trichloroethane 2985 | Organic Chemical | 4 | Jul 26, 2004 |
| 1,1-Dichloroethylene 2977 | Organic Chemical | 4 | Jul 26, 2004 |
| 1,2,4-Trichlorobenzene 2378 | Organic Chemical | 4 | Jul 26, 2004 |
| 1,2-Dichloroethane 2980 | Organic Chemical | 4 | Jul 26, 2004 |
| 1,2-Dichloropropane 2983 | Organic Chemical | 4 | Jul 26, 2004 |
| Antimony, Total 1074 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Arsenic 1005 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Asbestos 1094 | Inorganic Chemical | 2 | Sep 12, 2012 |
| Barium 1010 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Benzene 2990 | Organic Chemical | 4 | Jul 26, 2004 |
| Beryllium, Total 1075 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Bromodichloromethane 2943 | Organic Chemical | 6 | Aug 17, 2017 |
| Bromoform 2942 | Organic Chemical | 6 | Aug 17, 2017 |
| Cadmium 1015 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Carbon Tetrachloride 2982 | Organic Chemical | 4 | Jul 26, 2004 |
| Chlorobenzene 2989 | Organic Chemical | 4 | Jul 26, 2004 |
| Chloroform 2941 | Organic Chemical | 6 | Aug 17, 2017 |
| Chromium 1020 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 4 | Jul 26, 2004 |
| Coliform (TCR) 3100 | Organism | 300 | Aug 3, 2026 |
| Copper, Free 1022 | Inorganic Chemical | 84 | Sep 10, 2025 |
| Cyanide 1024 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Dibromoacetic Acid 2454 | Organic Chemical | 5 | Aug 17, 2017 |
| Dibromochloromethane 2944 | Organic Chemical | 6 | Aug 17, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 5 | Aug 17, 2017 |
| Dichloromethane 2964 | Organic Chemical | 4 | Jul 26, 2004 |
| E. Coli 3014 | Organism | 90 | Aug 3, 2026 |
| Ethylbenzene 2992 | Organic Chemical | 4 | Jul 26, 2004 |
| Fluoride 1025 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Lead 1030 | Inorganic Chemical | 84 | Sep 10, 2025 |
| Mercury 1035 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Monobromoacetic Acid 2453 | Organic Chemical | 5 | Aug 17, 2017 |
| Monochloroacetic Acid 2450 | Organic Chemical | 5 | Aug 17, 2017 |
| Nickel 1036 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Nitrate 1040 | Inorganic Chemical | 1 | May 12, 2004 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 | May 12, 2004 |
| Nitrite 1041 | Inorganic Chemical | 1 | May 12, 2004 |
| O-Dichlorobenzene 2968 | Organic Chemical | 4 | Jul 26, 2004 |
| P-Dichlorobenzene 2969 | Organic Chemical | 4 | Jul 26, 2004 |
| Selenium 1045 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Styrene 2996 | Organic Chemical | 4 | Jul 26, 2004 |
| Sulfate 1055 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Tetrachloroethylene 2987 | Organic Chemical | 4 | Jul 26, 2004 |
| Thallium, Total 1085 | Inorganic Chemical | 2 | Feb 9, 2004 |
| Toluene 2991 | Organic Chemical | 4 | Jul 26, 2004 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 9 | Apr 30, 2025 |
| Trans-1,2-Dichloroethylene 2979 | Organic Chemical | 4 | Jul 26, 2004 |
| Trichloroacetic Acid 2452 | Organic Chemical | 5 | Aug 17, 2017 |
| Trichloroethylene 2984 | Organic Chemical | 4 | Jul 26, 2004 |
| TTHM 2950 | Organic Chemical | 9 | Apr 30, 2025 |
| Vinyl Chloride 2976 | Organic Chemical | 4 | Jul 26, 2004 |
| Xylenes, Total 2955 | Organic Chemical | 4 | Jul 26, 2004 |
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.