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Glyphosate in U.S. tap water
21 public water systems across 3 U.S. states report Glyphosate in their annual Consumer Confidence Report. 1 sit at or above the federal limit.
At or above the federal limit (1)
| Water system | Measured | vs. limit |
|---|---|---|
| Delano, City of — Delano, Ca, CA 2023 annual report | 700 ug/L | 1.0× the limit |
Within the federal limit (20)
Glyphosate by state
Every state where a public water system reports Glyphosate in its annual report, ranked by systems at or above the federal limit.
| State | Measuring | Over limit | Highest reading |
|---|---|---|---|
| California | 18 | 1 | 700 ug/L · Delano, City of — Delano, Ca, CA |
| Alabama | 2 | 0 | Not detected ug/L · Mobile, AL |
| Tennessee | 1 | 0 | Not detected mg/L · Nashville, TN |
Frequently asked
+What is Glyphosate?
Glyphosate is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+Does Glyphosate have a federal limit in drinking water?
Glyphosate 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 Glyphosate over the federal limit?
1 of the 21 public water systems on The Water Map report Glyphosate at or above its federal limit, spanning 3 U.S. states. The full list is on this page.
+Which states report the most Glyphosate in their drinking water?
Of the systems on The Water Map, California (1 system at or above the limit) report the most Glyphosate exceedances. The state-by-state table on this page lists every state.
+How can I check if Glyphosate 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 Glyphosate.