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EWG's Tap Water Database — 2019 UPDATE

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3-Hydroxycarbofuran

Status: No national drinking water standard exists

 

3-Hydroxycarbofuran is a breakdown product of the insecticide carbofuran, once widely used on food crops and banned by the EPA due to its effects on the human nervous system.

2015-2017:

FOUND

3

states detected

19

utilities detected

305,000

people served

Health concerns for 3-hydroxycarbofuran

Harm to the brain and nervous system

Harm to the reproductive system

States reporting 3-hydroxycarbofuran in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
California17304,509
Nebraska1577
Rhode Island136
MORE
LESS

Utilities with the highest amounts of 3-hydroxycarbofuran, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Lawrence Sunset Cove AssociationTiverton, RI1 of 14.00 ppb36
Cal American Water Company - Las Posas EstatesNewbury Park, CA1 of 250.320 ppb1,800
Lake Sherwood Community Services DistrictMoorpark, CA1 of 250.320 ppb1,527
Calleguas Municipal Water District*Thousand Oaks, CA1 of 250.320 ppb0
Oak Park Water ServiceVentura, CA1 of 250.320 ppb12,200
Cal American Water CompanyNewbury Park, CA1 of 250.320 ppb61,206
Thousand Oaks Water DepartmentThousand Oaks, CA1 of 250.320 ppb50,000
California Water Service Company - WestlakeSan Jose, CA1 of 250.320 ppb19,451
Ventura County Waterworks District No. 17 - Bell CanyonMoorpark, CA1 of 250.320 ppb2,049
Solano Verde Mutual Water CompanyCamarillo, CA1 of 250.320 ppb100
Sargent, City ofSargent, NE1 of 40.142 ppb577

* 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 3-Hydroxycarbofuran, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
California Water Service Company - WestlakeSan Jose, CA1 of 250.320 ppb19,451
Thousand Oaks Water DepartmentThousand Oaks, CA1 of 250.320 ppb50,000
Cal American Water CompanyNewbury Park, CA1 of 250.320 ppb61,206
Oak Park Water ServiceVentura, CA1 of 250.320 ppb12,200