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.
DBCP by state
Every state where a public water system reports DBCP in its annual report, ranked by systems at or above the federal limit.
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.
+Which states report the most DBCP in their drinking water?
Of the systems on The Water Map, California (2 systems at or above the limit) report the most DBCP exceedances. The state-by-state table on this page lists every state.
+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.