Other
Tcaa in U.S. tap water
229 public water systems across 1 U.S. states report Tcaa in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
Within the federal limit (65)
| Water system | Measured |
|---|---|
| Buena Vista Migrant Center, CA 2023 annual report | Not detected UG/L |
| Buena Vista Migrant Center, 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 |
| Chula Vista Otay, CA 2024 annual report | Not detected UG/L |
| City of Hemet, CA 2024 annual report | Not detected UG/L |
| City of Martinez, CA 2026 annual report | Not detected UG/L |
| City of Martinez, CA 2024 annual report | Not detected UG/L |
| City of Martinez, 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 Thousand Oaks Water Department, CA 2026 annual report | Not detected UG/L |
| City of Thousand Oaks Water Department, CA 2025 annual report | Not detected UG/L |
| City of Thousand Oaks Water Department, CA 2023 annual report | Not detected UG/L |
| Cws - Visalia, CA 2026 annual report | Not detected UG/L |
| Cws - Visalia, CA 2023 annual report | Not detected UG/L |
| Cws - Visalia, CA 2025 annual report | Not detected UG/L |
| Cwsc Salinas, CA 2023 annual report | Not detected UG/L |
| Cwsc Salinas, CA 2025 annual report | Not detected UG/L |
| Cwsc Salinas, CA 2024 annual report | Not detected UG/L |
| Cwsc Salinas, CA 2026 annual report | Not detected UG/L |
| El Cajon, CA 2024 annual report | Not detected UG/L |
| El Monte, CA 2024 annual report | Not detected UG/L |
| El Monte-city, Water Dept., CA 2026 annual report | Not detected UG/L |
| El Monte-city, Water Dept., CA 2023 annual report | Not detected UG/L |
| El Monte-city, Water Dept., CA 2025 annual report | Not detected UG/L |
| Golden State Water Company, CA 2024 annual report | Not detected UG/L |
| Golden State Water Company - Los Osos, CA 2023 annual report | Not detected UG/L |
| Golden State Water Company - Los Osos, CA 2025 annual report | Not detected UG/L |
| Hemet, City of, CA 2026 annual report | Not detected UG/L |
| Hesperia, CA 2024 annual report | Not detected UG/L |
| Hesperia Wd, CA 2023 annual report | Not detected UG/L |
| Hesperia Wd, CA 2025 annual report | Not detected UG/L |
| Hesperia Wd, CA 2026 annual report | Not detected UG/L |
| Mills Service Area, CA 2024 annual report | Not detected UG/L |
| Naf El Centro, CA 2025 annual report | Not detected UG/L |
| Naf El Centro, CA 2023 annual report | Not detected UG/L |
| Oxnard Water Dept, CA 2023 annual report | Not detected UG/L |
| Oxnard Water Dept, CA 2026 annual report | Not detected UG/L |
| Oxnard Water Dept, CA 2025 annual report | Not detected UG/L |
| Rancho Estates Mutual Water Co., CA 2023 annual report | Not detected UG/L |
| Rancho Estates Mutual Water Co., CA 2024 annual report | Not detected UG/L |
| Rancho Estates Mutual Water Co., CA 2025 annual report | Not detected UG/L |
| Rialto, City of, CA 2025 annual report | Not detected UG/L |
| Rialto, City of, CA 2023 annual report | Not detected UG/L |
| Rincon Del Diablo MWD (id-1), CA 2026 annual report | Not detected UG/L |
| Riverside, CA 2024 annual report | Not detected UG/L |
| Riverside, City of, CA 2023 annual report | Not detected UG/L |
Showing 50 of 65. The full list is in the JSON API.
Frequently asked
+What is Tcaa?
Tcaa is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+Does Tcaa have a federal limit in drinking water?
Tcaa does not have an enforceable federal MCL. Utilities still report any measured levels in their annual Consumer Confidence Report.
+How many U.S. water systems have Tcaa over the federal limit?
Zero of the 229 public water systems in The Water Map dataset currently report Tcaa at or above its federal limit.
+How can I check if Tcaa 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 Tcaa.