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Tce in U.S. tap water

60 public water systems across 5 U.S. states report Tce in their annual Consumer Confidence Report. 2 sit at or above the federal limit.

60
systems measuring
2
over the limit
5
states represented

At or above the federal limit (2)

Water systemMeasured
La Verne, City Wd — La Verne, Ca, CA
2021 annual report
0–12 ug/L
El Monte, CA
2024 annual report
0–5.5 ug/L

Within the federal limit (54)

Water systemMeasured
La Verne, City Wd — La Verne, Ca, CA
2023 annual report
0–1.6 ug/L
Upland, City of — Upland, Ca, CA
2023 annual report
0–1.6 ug/L
City of Brea — Brea, Ca, CA
2023 annual report
1.5 ug/L
City of Brea — Brea, Ca, CA
2022 annual report
0.77 ug/L
City of La Habra — La Habra, Ca, CA
2023 annual report
0.75 ug/L
City of Brea — Brea, Ca, CA
2021 annual report
0.72 ug/L
City of Brea — Brea, Ca, CA
2020 annual report
0.7 ug/L
Santa Monica-city, Water Division — Los Angeles, Ca, CA
2023 annual report
0.7 ug/L
City of Alhambra — Alhambra, Ca, CA
2023 annual report
0–0.58 ug/L
Marina Coast Water District — Marina, Ca, CA
2023 annual report
0.4 ug/L
Suburban Water Systems - Sativa — Covina, Ca, CA
2022 annual report
0.3 ug/L
Cal Am - Fruitridge Vista — Sacramento, Ca, CA
2023 annual report
0.1 ug/L
Cal Am - Arden — Sacramento, Ca, CA
2023 annual report
0.09 ug/L
Antelope Valley East Kern Water Agency — Palmdale, Ca, CA
2021 annual report
Not detected ug/L
Big Bear City Csd — Big Bear City, Ca, CA
2023 annual report
0 ug/L
Boron Csd — Boron, Ca, CA
2022 annual report
Not detected ug/L
Calif State Polytechnical Univ - Pomona — Pomona, Ca, CA
2023 annual report
Not detected ug/L
Calif State Polytechnical Univ - Pomona — Pomona, Ca, CA
2020 annual report
Not detected ug/L
Calif State Polytechnical Univ - Pomona — Pomona, Ca, CA
2021 annual report
Not detected ug/L
Calif State Polytechnical Univ - Pomona — Pomona, Ca, CA
2022 annual report
Not detected ug/L
California Water Service Co. - Ela — San Jose, Ca, CA
2023 annual report
Not detected ug/L
City of Hampton, VA
2024 annual report
Not detected ug/L
City of Newport News, VA
2025 annual report
Not detected ug/L
City of Poquoson, VA
2024 annual report
Not detected ug/L
City of Poquoson, VA
2025 annual report
Not detected ug/L
Covina Irrigating Co. — West Covina, Ca, CA
2021 annual report
Not detected ug/L
Fullerton, CA
2024 annual report
Not detected ug/L
Golden State Water Co. - Cordova — Rancho Cordova, Ca, CA
2023 annual report
Not detected ug/L
Gswc - Artesia — Anaheim, Ca, CA
2023 annual report
Not detected ug/L
Gswc - Artesia — Anaheim, Ca, CA
2022 annual report
Not detected ug/L
Gswc - Artesia — Anaheim, Ca, CA
2020 annual report
Not detected ug/L
Gswc - Artesia — Anaheim, Ca, CA
2021 annual report
Not detected ug/L
Gswc - Bell, Bell Gardens — Anaheim, Ca, CA
2020 annual report
Not detected ug/L
Gswc - Bell, Bell Gardens — Anaheim, Ca, CA
2021 annual report
Not detected ug/L
Gswc - Bell, Bell Gardens — Anaheim, Ca, CA
2022 annual report
Not detected ug/L
Gswc - Bell, Bell Gardens — Anaheim, Ca, CA
2023 annual report
Not detected ug/L
Gswc - Claremont — San Dimas, Ca, CA
2023 annual report
Not detected ug/L
Gswc - Claremont — San Dimas, Ca, CA
2021 annual report
Not detected ug/L
Gswc - Claremont — San Dimas, Ca, CA
2022 annual report
Not detected ug/L
Gswc - Claremont — San Dimas, Ca, CA
2020 annual report
Not detected mg/L
Gswc-south Arcadia — San Dimas, Ca, CA
2022 annual report
Not detected ug/L
Hampton, VA
2025 annual report
Not detected ug/L
James City County, VA
2025 annual report
Not detected ug/L
La Canada Irrigation Dist. — La Canada, Ca, CA
2022 annual report
Not detected ug/L
La Canada Irrigation Dist. — La Canada, Ca, CA
2023 annual report
Not detected ug/L
La Canada Irrigation Dist. — La Canada, Ca, CA
2020 annual report
Not detected ug/L
Madison, WI
2024 annual report
Not detected ug/L
Mobile, AL
2024 annual report
Not detected ug/L
Newport News, VA
2024 annual report
Not detected ug/L
Plano, TX
2024 annual report
0–0 ug/L

Showing 50 of 54. The full list is in the JSON API.

Frequently asked

+What is Tce?

Tce is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.

+What is the federal limit for Tce in drinking water?

The federal MCLG for Tce is 0 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 Tce over the federal limit?

2 of the 60 public water systems on The Water Map report Tce at or above its federal limit, spanning 5 U.S. states. The full list is on this page.

+How can I check if Tce 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 Tce.

See Tce on the map

Color-coded by status across the whole country.

Open the map →