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EWG's Tap Water Database — 2021 UPDATE

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Isopropylbenzene

Status: No national drinking water standard exists

 

Isopropylbenzene, also called cumene, is an intermediate in industrial chemical production, and is also used as a thinner for paints and enamels. The National Toxicology Program classifies isopropylbenzene as a "reasonably anticipated" human carcinogen.

2017-2019:

FOUND

9

states detected

21

utilities detected

75,986

people served

Health concerns for isopropylbenzene

Cancer

States reporting isopropylbenzene in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Alabama138,700
Michigan112,793
New York109,242
Ohio16,400
Wisconsin34,563
California22,400
Missouri11,200
Vermont1551
Massachusetts1137
MORE
LESS

Filtering technologies that reduce isopropylbenzene

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Activated Carbon

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Reverse Osmosis

Utilities with the highest amounts of isopropylbenzene, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Kilmarnock, Town ofKilmarnock, VA1 of 11.50 ppb1,487
Ausable Heights Water SystemKeeseville, NY1 of 10.500 ppb46
Guatay Mutual Benefit CorporationGuatay, CA1 of 50.420 ppb100
Marshfield UtilitiesMarshfield, WI1 of 10.380 ppb18,708
Irasburg Fd #1Irasburg, VT1 of 20.300 ppb200
Mount Hope WaterworksMount Hope, WI1 of 20.240 ppb181
Peshtigo WaterworksPeshtigo, WI1 of 10.220 ppb3,449
Shawano Co. UtilityShawano, WI2 of 20.180 ppb100
Grafton WaterworksGrafton, WI2 of 20.175 ppb11,745
Carl Junction PWSCarl Junction, MO2 of 160.143 ppb7,445
Cape Girardeau County Public Water Supply District 4Cape Girardeau, MO1 of 40.128 ppb1,575
Pablo Lake County Water and Sewer DistrictPablo, MT1 of 40.128 ppb2,075
Silver Lake Institute - Castile Water District #1, NY1 of 40.125 ppb440
Perry Center Water DistrictPerry, NY1 of 40.125 ppb150
Perry Village*, NY1 of 40.125 ppb4,348
Gardeau Water DistrictCastile, NY1 of 40.125 ppb60
ParrottParrott, GA1 of 90.111 ppb234
Coopers GroveAtkinson, NH1 of 80.1000 ppb30
Brodhead WaterworksBrodhead, WI2 of 100.0880 ppb3,216
US Army Aviation and Missile CommandRedstone Arsenal, AL2 of 130.0779 ppb38,700
Waterville Fire District 1Waterville, VT2 of 550.0591 ppb84
Meadowbrook Acres Mobile Home ParkBrimfield, MA1 of 110.0564 ppb137
Farm-to-market AssociatesBrewster, NY1 of 90.0556 ppb48
Springhill Mobile Home ParkWappingers Falls, NY1 of 90.0556 ppb150
Greensboro Fire District 1Greensboro, VT1 of 90.0556 ppb551
Michigan State UniversityEast Lansing, MI1 of 190.0368 ppb12,793
Cambridge Water & Sewer UtilityCambridge, WI2 of 170.0288 ppb1,247
Bridleside ApartmentsChappaqua, NY1 of 740.0230 ppb230
Springport Water District #1 - NorthCayuga, NY1 of 240.0208 ppb500
Springport Water District #1 - SouthCayuga, NY1 of 240.0208 ppb500
Union Springs Village*Union Springs, NY1 of 240.0208 ppb3,000
City of CleburneCleburne, TX1 of 370.0173 ppb30,573
Oak Grove Mobile Home ParkWall, NJ1 of 20.0150 ppb100
Jackpot Water SystemJackpot, NV1 of 90.0144 ppb1,240
Morgan County Public Water Supply District # 2Stover, MO1 of 510.0120 ppb1,200
Acton Water Supply DistrictActon, MA1 of 1030.0117 ppb20,890
Milford City Public Water SystemMilford, OH1 of 570.00877 ppb6,400
Glen Gardner Water DepartmentGlen Gardner, NJ1 of 90.00778 ppb1,705
Lynwood Park Mutual Water CompanyCompton, CA1 of 700.00714 ppb2,300
MineolaMineola, NY1 of 5040.00133 ppb20,600

* 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 Isopropylbenzene, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Marshfield UtilitiesMarshfield, WI1 of 10.380 ppb18,708
Grafton WaterworksGrafton, WI2 of 20.175 ppb11,745
US Army Aviation and Missile CommandRedstone Arsenal, AL2 of 130.0779 ppb38,700
Michigan State UniversityEast Lansing, MI1 of 190.0368 ppb12,793
City of CleburneCleburne, TX1 of 370.0173 ppb30,573
Acton Water Supply DistrictActon, MA1 of 1030.0117 ppb20,890
MineolaMineola, NY1 of 5040.00133 ppb20,600