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EWG's Tap Water Database — 2021 UPDATE

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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:

FOUND
FOUND ABOVE HEALTH GUIDELINES

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

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 UtilitiesPeople Served
Florida1366,154
Kentucky15,609
Oregon12,000
Pennsylvania11,406
Wyoming1470
Louisiana1159
MORE
LESS

Filtering technologies that reduce endothall

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of endothall, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Veterans Administration Medical CenterSheridan, WY1 of 39.83 ppb470
City Of RainierRainier, OR1 of 67.83 ppb2,000
St. Lucie Mobile VillageIndiantown, FL1 of 24.50 ppb750
Linger Lodge Trailer Trailer ParkBradenton, FL1 of 22.15 ppb250
City of Fort MeadeFort Meade, FL1 of 51.80 ppb5,455
Florida Pines Mobile Home ParkVenice, FL1 of 21.65 ppb280
Okeechobee Correctional InstitutionOkeechobee, FL1 of 21.65 ppb1,700
Phoenix Mobile Home Park of Lake Charles LLC W SLake Charles, LA2 of 81.58 ppb159
Cadiz Municipal Water CompanyCadiz, KY1 of 41.50 ppb5,609
Cross Creek Mobile Home ParkHawthorne, FL1 of 31.37 ppb156
Borough of AtglenAtglen, PA1 of 141.32 ppb1,406
Mulberry, City ofMulberry, FL2 of 90.956 ppb3,780
Sunrise SouthwestFort Lauderdale, FL1 of 50.860 ppb9,457
Royal Waterworks Inc.Coral Springs, FL1 of 60.717 ppb4,481
Stratmoor Hills Water & Sanitation DistrictColorado Springs, CO1 of 140.643 ppb6,500
Fern Crest Utilities Inc.Ft Lauderdale, FL1 of 70.614 ppb3,123
Eagle Lakes WTPBunnell, FL1 of 40.450 ppb231
Frostproof, City ofFrostproof, FL2 of 120.300 ppb3,550
Naval Air Station Pensacola / Corry StationNas Pensacola, FL2 of 460.274 ppb22,600
Miramar (East & West) PlantsMiramar, FL1 of 160.269 ppb127,700
Tbw/s. Pasco Wellfield Chemical Feed SystemWesley Chapel, FL1 of 120.150 ppb25
CentralWinter Haven, FL1 of 200.0600 ppb13,595
UtilityLocationTestsAverage levelPeople served
Naval Air Station Pensacola / Corry StationNas Pensacola, FL2 of 460.274 ppb22,600
Miramar (East & West) PlantsMiramar, FL1 of 160.269 ppb127,700
CentralWinter Haven, FL1 of 200.0600 ppb13,595