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EWG's Tap Water Database — 2021 UPDATE

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Dinoseb

Status: National drinking water standard exists

 

Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.

2017-2019:

FOUND

6

states detected

39

utilities detected

1.0 million

people served

Health concerns for dinoseb

Harm to reproduction and child development

Change to fetal growth and development

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

States reporting dinoseb in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Nebraska13580,467
Florida14367,740
North Carolina973,901
Iowa13,785
New York1200
Washington160
MORE
LESS

Filtering technologies that reduce dinoseb

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of dinoseb, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Kontree Apartments Water SystemLynden, WA18 of 218.94 ppb60
Cass Scenic RailroadCass, WV1 of 41.28 ppb555
Rensselaerville Water DistrictRensselaerville, NY1 of 21.05 ppb200
Shannon EstatesBlair, NE1 of 80.353 ppb100
Washington County Rural Water 2*Omaha, NE1 of 80.353 ppb1,070
Blair, City of*Blair, NE1 of 80.353 ppb7,990
Kennard, Village ofKennard, NE1 of 80.353 ppb400
Gretna, City ofGretna, NE1 of 130.338 ppb10,852
Washington County Rural Water 1*Omaha, NE1 of 180.179 ppb1,713
Carter Lake Water District*Carter Lake, IA1 of 180.179 ppb3,785
Metropolitan Utilities District*Omaha, NE1 of 180.179 ppb554,091
Maplewood EstatesOmaha, NE1 of 180.179 ppb805
Meadowbrook Estates Water SystemOmaha, NE1 of 180.179 ppb675
Nebe Green Acres Mobile Home ParkBellevue, NE1 of 180.179 ppb870
Martinview Mobile Home ParkBellevue, NE1 of 180.179 ppb378
Washington Terrace LlcBellevue, NE1 of 180.179 ppb223
Frostproof, City ofFrostproof, FL2 of 120.143 ppb3,550
Jefferson LandingJefferson, NC5 of 120.129 ppb653
Solano Verde Mutual Water CompanyCamarillo, CA1 of 490.122 ppb100
Ventura County Waterworks District No. 17 - Bell CanyonMoorpark, CA1 of 490.122 ppb2,049
California Water Service Company - WestlakeSan Jose, CA1 of 490.122 ppb19,451
Thousand Oaks Water DepartmentThousand Oaks, CA1 of 490.122 ppb50,000
Cal American Water CompanyNewbury Park, CA1 of 490.122 ppb61,206
Cal American Water Company - Las Posas EstatesNewbury Park, CA1 of 490.122 ppb1,800
Oak Park Water ServiceVentura, CA1 of 490.122 ppb12,200
Lake Sherwood Community Services DistrictMoorpark, CA1 of 490.122 ppb1,527
Calleguas Municipal Water District*Thousand Oaks, CA1 of 490.122 ppb0
St. Lucie Mobile VillageIndiantown, FL1 of 20.1000 ppb750
Florida Pines Mobile Home ParkVenice, FL1 of 20.0800 ppb280
Franklin Water DepartmentFranklin, MA10 of 480.0604 ppb32,445
Backwoods-saddlebrook Community WsMoyock, NC2 of 160.0519 ppb122
Taylor Coastal Water & Sewer DistrictPerry, FL1 of 70.0449 ppb1,303
City of Fort MeadeFort Meade, FL1 of 50.0400 ppb5,455
Pa Amer Water ThompsonNorristown, PA1 of 110.0364 ppb225
Mulberry, City ofMulberry, FL2 of 90.0356 ppb3,780
Oakland PsdWeirton, WV1 of 20.0355 ppb1,846
Sunrise SouthwestFort Lauderdale, FL1 of 50.0320 ppb9,457
Beauregard Water AuthorityOpelika, AL1 of 100.0236 ppb11,178
Fern Crest Utilities Inc.Ft Lauderdale, FL1 of 70.0229 ppb3,123
Toho Water Authority - Poinciana SystemKissimmee, FL1 of 90.0178 ppb69,447
Fairfield SapphireCharlotte, NC1 of 260.0108 ppb2,882
Miramar (East & West) PlantsMiramar, FL1 of 160.01000 ppb127,700
Lee County Utilities*Fort Myers, FL1 of 250.00600 ppb251,502
Gateway Services DistrictFort Myers, FL1 of 250.00600 ppb12,717
Town of Fort Myers Beach (beach Water)Fort Myers Beach, FL1 of 250.00600 ppb6,900
Mobile Manor Mobile Home ParkN. Fort Myers, FL1 of 250.00600 ppb482
Tamiami Village Mobile Home ParkN. Fort Myers, FL1 of 250.00600 ppb1,200
Pine Lakes Mobile Home ParkN. Fort Myers, FL1 of 250.00600 ppb1,220
Old Bridge Village Mobile Home ParkNorth Fort Myers, FL1 of 250.00600 ppb1,000
Bogue Banks Water CorporationEmerald Isle, NC1 of 440.00455 ppb4,995

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dinoseb, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Gretna, City ofGretna, NE1 of 130.338 ppb10,852
Metropolitan Utilities District*Omaha, NE1 of 180.179 ppb554,091
California Water Service Company - WestlakeSan Jose, CA1 of 490.122 ppb19,451
Thousand Oaks Water DepartmentThousand Oaks, CA1 of 490.122 ppb50,000
Cal American Water CompanyNewbury Park, CA1 of 490.122 ppb61,206
Oak Park Water ServiceVentura, CA1 of 490.122 ppb12,200
Franklin Water DepartmentFranklin, MA10 of 480.0604 ppb32,445
Beauregard Water AuthorityOpelika, AL1 of 100.0236 ppb11,178
Toho Water Authority - Poinciana SystemKissimmee, FL1 of 90.0178 ppb69,447
Miramar (East & West) PlantsMiramar, FL1 of 160.01000 ppb127,700
Lee County Utilities*Fort Myers, FL1 of 250.00600 ppb251,502
Gateway Services DistrictFort Myers, FL1 of 250.00600 ppb12,717
Robeson County Water System*Lumberton, NC1 of 690.00362 ppb64,295

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dinoseb, but it likely has the contaminant in its water supply.