Endothall
Status: National drinking water standard exists
Endothall is a herbicide used to kill aquatic plants and algae. It's also used on potato and cotton crops.
2017-2019:
6
states detected
18
utilities detected
75,798
people served
0
states over health guideline
0
utilities over health guideline
0
people served over health guideline
0
states over legal limit
0
utilities over legal limit
0
people served over legal limit
Health concerns for endothall
Change to the stomach and intestines
Eye damage
Skin irritation
State and national drinking water standards and health guidelines
EWG Health Guideline 94 ppb
The EWG Health Guideline of 94 ppb for endothall was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the stomach and intestines.
EPA Maximum Contaminant
Level (MCL) 100 ppb
The legal limit for endothall, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.
ppb = parts per billion
States reporting endothall in drinking water
UTILITIES WITH CONTAMINATION | |||
---|---|---|---|
State | Utilities | People Served | |
Florida | 13 | 66,154 | |
Kentucky | 1 | 5,609 | |
Oregon | 1 | 2,000 | |
Pennsylvania | 1 | 1,406 | |
Wyoming | 1 | 470 | |
Louisiana | 1 | 159 |
Filtering technologies that reduce endothall

Activated Carbon

Reverse Osmosis
Utilities with the highest amounts of endothall, 2017-2019
Utility | Location | Tests | Average level | People served |
---|---|---|---|---|
Veterans Administration Medical Center | Sheridan, WY | 1 of 3 | 9.83 ppb | 470 |
City Of Rainier | Rainier, OR | 1 of 6 | 7.83 ppb | 2,000 |
St. Lucie Mobile Village | Indiantown, FL | 1 of 2 | 4.50 ppb | 750 |
Linger Lodge Trailer Trailer Park | Bradenton, FL | 1 of 2 | 2.15 ppb | 250 |
City of Fort Meade | Fort Meade, FL | 1 of 5 | 1.80 ppb | 5,455 |
Florida Pines Mobile Home Park | Venice, FL | 1 of 2 | 1.65 ppb | 280 |
Okeechobee Correctional Institution | Okeechobee, FL | 1 of 2 | 1.65 ppb | 1,700 |
Phoenix Mobile Home Park of Lake Charles LLC W S | Lake Charles, LA | 2 of 8 | 1.58 ppb | 159 |
Cadiz Municipal Water Company | Cadiz, KY | 1 of 4 | 1.50 ppb | 5,609 |
Cross Creek Mobile Home Park | Hawthorne, FL | 1 of 3 | 1.37 ppb | 156 |
Borough of Atglen | Atglen, PA | 1 of 14 | 1.32 ppb | 1,406 |
Mulberry, City of | Mulberry, FL | 2 of 9 | 0.956 ppb | 3,780 |
Sunrise Southwest | Fort Lauderdale, FL | 1 of 5 | 0.860 ppb | 9,457 |
Royal Waterworks Inc. | Coral Springs, FL | 1 of 6 | 0.717 ppb | 4,481 |
Stratmoor Hills Water & Sanitation District | Colorado Springs, CO | 1 of 14 | 0.643 ppb | 6,500 |
Fern Crest Utilities Inc. | Ft Lauderdale, FL | 1 of 7 | 0.614 ppb | 3,123 |
Eagle Lakes WTP | Bunnell, FL | 1 of 4 | 0.450 ppb | 231 |
Frostproof, City of | Frostproof, FL | 2 of 12 | 0.300 ppb | 3,550 |
Naval Air Station Pensacola / Corry Station | Nas Pensacola, FL | 2 of 46 | 0.274 ppb | 22,600 |
Miramar (East & West) Plants | Miramar, FL | 1 of 16 | 0.269 ppb | 127,700 |
Tbw/s. Pasco Wellfield Chemical Feed System | Wesley Chapel, FL | 1 of 12 | 0.150 ppb | 25 |
Central | Winter Haven, FL | 1 of 20 | 0.0600 ppb | 13,595 |
Utility | Location | Tests | Average level | People served |
---|---|---|---|---|
Naval Air Station Pensacola / Corry Station | Nas Pensacola, FL | 2 of 46 | 0.274 ppb | 22,600 |
Miramar (East & West) Plants | Miramar, FL | 1 of 16 | 0.269 ppb | 127,700 |
Central | Winter Haven, FL | 1 of 20 | 0.0600 ppb | 13,595 |