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Contaminant guide

Glyphosate in drinking water

The EPA limit for Glyphosate in drinking water is 700 µg/L. Of the 13,724 water suppliers tested, 46 had it detected.

700 µg/L
EPA limit (MCL)
0.3%
of suppliers detected it
(46/13,724)

What the EPA limit means

⚖️

700 µg/L

Maximum Contaminant Level — the enforceable ceiling a supplier must stay under.

🎯

700 µg/L

Health goal (MCLG) — the level with no known health effect. It is a goal, not a legal limit, and is often zero for carcinogens.

🧪

SYR4

Where these measurements come from. Hover the tag for the EPA programme and years.

Where Glyphosate was found

The water suppliers reporting the highest levels, worst first.

SupplierCityStateLevel vs EPA limit
Deer Chase Mhp Landisburg PA
456 µg/L 65%
of the EPA limit 700 µg/L
Aspen Ridge Marengo WI
88 µg/L 13%
of the EPA limit 700 µg/L
Southern Water & Sewer District Mcdoqwell KY
52 µg/L 7.4%
of the EPA limit 700 µg/L
City of Pleasanton Pleasanton CA
50 µg/L 7.1%
of the EPA limit 700 µg/L
Turkey Creek Water System Gilbert LA
33.4 µg/L 4.8%
of the EPA limit 700 µg/L
Kern County Water Agency Bakersfield CA
32 µg/L 4.6%
of the EPA limit 700 µg/L
Polk City System Polk City FL
27 µg/L 3.9%
of the EPA limit 700 µg/L
Fleming-Neon Water Company Neon KY
26 µg/L 3.7%
of the EPA limit 700 µg/L
Mccall Water System Inc Brewton AL
17.35 µg/L 2.5%
of the EPA limit 700 µg/L
Irish Creek Mhp — MD
13 µg/L 1.9%
of the EPA limit 700 µg/L
Egan Water Corporation Egan LA
10.1 µg/L 1.4%
of the EPA limit 700 µg/L
Seminole - Brighton Reservation Hollywood FL
9 µg/L 1.3%
of the EPA limit 700 µg/L
Central Winter Haven FL
6.5 µg/L 0.9%
of the EPA limit 700 µg/L
Seminole - Big Cypress Hollywood FL
6.5 µg/L 0.9%
of the EPA limit 700 µg/L
Seminole Utilities Immokalee Hollywood FL
6.5 µg/L 0.9%
of the EPA limit 700 µg/L
Seminole Utilities Hollywood Hollywood FL
6.5 µg/L 0.9%
of the EPA limit 700 µg/L
Florida Governmental Utility Authority Lehigh Acres FL
6.5 µg/L 0.9%
of the EPA limit 700 µg/L
Frostproof, City of Frostproof FL
6.5 µg/L 0.9%
of the EPA limit 700 µg/L
Diversion Water - Cypress Lakes Prairieville LA
6.4 µg/L 0.9%
of the EPA limit 700 µg/L
St. Lucie Mobile Village Indiantown MI
6 µg/L 0.9%
of the EPA limit 700 µg/L
Tariffville Fire District Water Dept Simsbury CT
6 µg/L 0.9%
of the EPA limit 700 µg/L
Mashantucket Pequot Water System Mashantucket CT
6 µg/L 0.9%
of the EPA limit 700 µg/L
City of Fort Meade Fort Meade FL
6 µg/L 0.9%
of the EPA limit 700 µg/L
Edmond Pwa — OK
6 µg/L 0.9%
of the EPA limit 700 µg/L
Henderson City of Henderson NV
5.1 µg/L 0.7%
of the EPA limit 700 µg/L

Frequently asked questions about Glyphosate

What is Glyphosate in drinking water?

Glyphosate is monitored in US public drinking water under EPA rules. Each supplier's result is reported to the EPA and published here with its source and period.

What is the EPA limit for Glyphosate?

The EPA's Maximum Contaminant Level for Glyphosate is 700 µg/L, and its health goal (MCLG) is 700 µg/L. A result above the limit means the supplier must act; the goal is the level at which no health effects are expected.

How common is Glyphosate in US tap water?

Of the 13,724 water suppliers with results on file, 46 detected Glyphosate — 0.3% of those tested.