Other
Trichlorobenzene 124 in U.S. tap water
184 public water systems across 1 U.S. states report Trichlorobenzene 124 in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
Within the federal limit (184)
| Water system | Measured |
|---|---|
| Bakersfield, CA 2024 annual report | Not detected UG/L |
| Bakersfield, City of, CA 2023 annual report | Not detected UG/L |
| Bakersfield, City of, CA 2026 annual report | Not detected UG/L |
| Bakersfield, City of, CA 2025 annual report | Not detected UG/L |
| Brentwood, CA 2025 annual report | Not detected UG/L |
| Brentwood, CA 2023 annual report | Not detected UG/L |
| Brentwood, CA 2024 annual report | Not detected UG/L |
| Buena Vista Migrant Center, CA 2025 annual report | Not detected UG/L |
| Burbank, CA 2024 annual report | Not detected UG/L |
| Burbank-city, Water Dept., CA 2026 annual report | Not detected UG/L |
| Burbank-city, Water Dept., CA 2025 annual report | Not detected UG/L |
| Burbank-city, Water Dept., CA 2023 annual report | Not detected UG/L |
| Cal-water Service Co.-chico, CA 2025 annual report | Not detected UG/L |
| Cal-water Service Co.-chico, CA 2023 annual report | Not detected UG/L |
| Cal-water Service Co.-chico, CA 2026 annual report | Not detected UG/L |
| Chico, CA 2024 annual report | Not detected UG/L |
| City of Antioch, CA 2024 annual report | Not detected UG/L |
| City of Antioch, CA 2023 annual report | Not detected UG/L |
| City of Antioch, CA 2025 annual report | Not detected UG/L |
| City of Clovis, CA 2025 annual report | Not detected UG/L |
| City of Clovis, CA 2023 annual report | Not detected UG/L |
| City of Clovis, CA 2026 annual report | Not detected UG/L |
| City of Cupertino, CA 2025 annual report | Not detected UG/L |
| City of Cupertino, CA 2023 annual report | Not detected UG/L |
| City of Daly City, CA 2025 annual report | Not detected UG/L |
| City of Daly City, CA 2026 annual report | Not detected UG/L |
| City of Daly City, CA 2023 annual report | Not detected UG/L |
| City of Fairfield, CA 2025 annual report | Not detected UG/L |
| City of Fairfield, CA 2026 annual report | Not detected UG/L |
| City of Fairfield, CA 2023 annual report | Not detected UG/L |
| City of Fullerton, CA 2026 annual report | Not detected UG/L |
| City of Fullerton, CA 2023 annual report | Not detected UG/L |
| City of Fullerton, CA 2025 annual report | Not detected UG/L |
| City of Hayward, CA 2026 annual report | Not detected UG/L |
| City of Hemet, CA 2024 annual report | Not detected UG/L |
| City of Huntington Beach, CA 2024 annual report | Not detected UG/L |
| City of Huntington Beach, CA 2023 annual report | Not detected UG/L |
| City of Huntington Beach, CA 2026 annual report | Not detected UG/L |
| City of Martinez, CA 2025 annual report | Not detected UG/L |
| City of Martinez, CA 2024 annual report | Not detected UG/L |
| City of Murrieta, CA 2024 annual report | Not detected UG/L |
| City of Perris, CA 2024 annual report | Not detected UG/L |
| City of Pittsburg, CA 2024 annual report | Not detected UG/L |
| City of Pittsburg, CA 2026 annual report | Not detected UG/L |
| City of Pittsburg, CA 2023 annual report | Not detected UG/L |
| City of San Jose - Evg/edv/coy, CA 2023 annual report | Not detected UG/L |
| City of San Jose - Evg/edv/coy, CA 2026 annual report | Not detected UG/L |
| City of Santa Ana, CA 2026 annual report | Not detected UG/L |
| City of Santa Ana, CA 2025 annual report | Not detected UG/L |
| City of Santa Ana, CA 2023 annual report | Not detected UG/L |
Showing 50 of 184. The full list is in the JSON API.
Frequently asked
+What is Trichlorobenzene 124?
Trichlorobenzene 124 is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+What is the federal limit for Trichlorobenzene 124 in drinking water?
The federal MCL for Trichlorobenzene 124 is 5 UG/L. The EPA enforces this against the regulated reporting statistic (typically a running annual average or 90th percentile), not a single-sample spike.
+How many U.S. water systems have Trichlorobenzene 124 over the federal limit?
Zero of the 184 public water systems in The Water Map dataset currently report Trichlorobenzene 124 at or above its federal limit.
+How can I check if Trichlorobenzene 124 is in my city's tap water?
Search your city on The Water Map (https://www.thewatermap.com/) or browse the list on this page. Every U.S. public water utility is required to publish an annual Consumer Confidence Report that lists every contaminant it measured, including Trichlorobenzene 124.