VOCs & pesticides
DBCP in U.S. tap water
88 public water systems across 7 U.S. states report DBCP in their annual Consumer Confidence Report. 2 sit at or above the federal limit.
What it is
1,2-dibromo-3-chloropropane — a banned soil fumigant pesticide.
Why it's regulated
A probable human carcinogen; long-term exposure above the federal limit can cause reproductive harm.
At or above the federal limit (2)
| Water system | Measured | vs. limit |
|---|---|---|
| Winton Water & Sanitary Dist — Winton, Ca, CA 2023 annual report | 8 ug/L | 40.0× the limit |
| Wasco, City of — Wasco, Ca, CA 2023 annual report | 0–340 ng/L | 1.7× the limit |
Within the federal limit (84)
Showing 50 of 84. The full list is in the JSON API.
Frequently asked
+What is DBCP?
1,2-dibromo-3-chloropropane — a banned soil fumigant pesticide. A probable human carcinogen; long-term exposure above the federal limit can cause reproductive harm.
+What is the federal limit for DBCP in drinking water?
The federal Public health goal for DBCP is 3 ng/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 DBCP over the federal limit?
2 of the 88 public water systems on The Water Map report DBCP at or above its federal limit, spanning 7 U.S. states. The full list is on this page.
+How can I check if DBCP 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 DBCP.