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EWG's Tap Water Database — 2021 UPDATE

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1,3,5-Trimethylbenzene

Status: No national drinking water standard exists

 

1,3,5-trimethylbenzene is a neurotoxic, volatile chemical found in gasoline, and used as a solvent and paint thinner.

2017-2019:

FOUND

19

states detected

50

utilities detected

221,000

people served

Health concerns for 1,3,5-trimethylbenzene

Harm to the central nervous system

Eye and lung irritation

Change to blood cells

States reporting 1,3,5-trimethylbenzene in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Wisconsin1351,101
Minnesota350,542
Alabama138,700
Texas528,513
Washington323,457
New York109,242
Ohio16,400
New Jersey15,400
California12,300
Utah21,860
Vermont2851
Maryland1725
Nebraska1462
Illinois1450
Arkansas1265
Montana1225
Georgia1210
Virginia1147
New Hampshire126
MORE
LESS

Filtering technologies that reduce 1,3,5-trimethylbenzene

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of 1,3,5-trimethylbenzene, 2017-2019

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Central Garage Water SystemKing William, VA1 of 12.70 ppb2,100
City of Mount CalmMount Calm, TX1 of 52.60 ppb447
Hudson Water SupplyHudson, IA3 of 31.53 ppb2,282
Kilmarnock, Town ofKilmarnock, VA1 of 11.50 ppb1,487
Lower Big Blue NRD - WymoreBeatrice, NE1 of 11.16 ppb6
Stetsonville WaterworksStetsonville, WI1 of 11.10 ppb563
Biron Water UtilityWisconsin Rapids, WI1 of 11.000 ppb879
Prescott WaterworksPrescott, WI1 of 10.960 ppb4,258
Murray, Village ofMurray, NE1 of 20.915 ppb462
Quinton Park SubdivisionNew Kent, VA2 of 20.900 ppb147
Panora Water WorksPanora, IA1 of 10.900 ppb1,272
Liberty RidgeWilliamsburg, VA1 of 10.800 ppb68
Fort Atkinson WaterworksFort Atkinson, WI1 of 10.700 ppb12,125
ParrottParrott, GA1 of 90.678 ppb234
Mount Hope WaterworksMount Hope, WI1 of 20.600 ppb181
De LandDe Land, IL1 of 40.575 ppb450
FairleeChestertown, MD1 of 20.550 ppb725
Oaklawn AcademyEdgerton, WI5 of 50.532 ppb320
Shawano Co. UtilityShawano, WI7 of 70.526 ppb100
Carl Junction PWSCarl Junction, MO2 of 160.516 ppb7,445
Ausable Heights Water SystemKeeseville, NY1 of 10.500 ppb46
Weyerhaeuser WaterworksWeyerhauser, WI4 of 40.488 ppb238
Peshtigo WaterworksPeshtigo, WI3 of 30.367 ppb3,449
Woodridge Municipal Utility DistrictHouston, TX1 of 310.323 ppb840
Valley Ranch Municipal Utility District 1Houston, TX1 of 310.323 ppb3,768
Porter SUD*Porter, TX1 of 310.323 ppb15,892
City of Panorama VillagePanorama Village, TX1 of 120.308 ppb2,333
Hudson WaterworksHudson, WI1 of 10.270 ppb17,100
South Greenfield PWSSouth Greenfield, MO1 of 20.250 ppb100
Belleville WaterworksBelleville, WI1 of 10.230 ppb2,385
City of HewittHewitt, TX1 of 170.218 ppb16,417
Coloma WaterworksColoma, WI1 of 10.210 ppb454
Cedar City WaterworksCedar City, UT1 of 180.206 ppb31,223
Dodgeville WaterworksDodgeville, WI1 of 10.200 ppb4,583
St Croix Falls WaterworksSt Croix Falls, WI1 of 10.200 ppb2,079
Turtle Lake WaterworksTurtle Lake, WI1 of 10.190 ppb1,073
Wisconsin Veterans HomeKing, WI1 of 10.190 ppb1,240
Mesa Grande Water Supply CorporationGranbury, TX1 of 120.188 ppb423
Batesville Water Supply CorporationBatesville, TX1 of 70.186 ppb1,191
Duval County Crd BenavidesBenavides, TX2 of 130.185 ppb1,362
OstranderOstrander, MN1 of 50.182 ppb256
Tx Airstream Harbor WaterZavalla, TX1 of 60.178 ppb174
Strafford PWSStrafford, MO2 of 60.175 ppb2,600
Northview Utility Corporation Public Water SystemSt. Marys, OH1 of 30.173 ppb75
Newport City OfNewport, WA2 of 80.173 ppb2,140
Elmo Subdivision 1 & 2 & 3Eagle Rock, MO1 of 30.170 ppb275
GarfieldGarfield, GA1 of 30.167 ppb210
Blackrocks VillageAtkinson, NH1 of 60.150 ppb34
City of WeinertWeinert, TX1 of 60.148 ppb162
City of KirbyKirby, TX1 of 110.136 ppb9,669

* 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 1,3,5-Trimethylbenzene, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Fort Atkinson WaterworksFort Atkinson, WI1 of 10.700 ppb12,125
Porter SUD*Porter, TX1 of 310.323 ppb15,892
Hudson WaterworksHudson, WI1 of 10.270 ppb17,100
City of HewittHewitt, TX1 of 170.218 ppb16,417
Cedar City WaterworksCedar City, UT1 of 180.206 ppb31,223
City of JasperJasper, TX1 of 210.124 ppb11,825
River Falls WaterworksRiver Falls, WI1 of 10.120 ppb15,229
US Army Aviation and Missile CommandRedstone Arsenal, AL2 of 130.0795 ppb38,700
City of CleburneCleburne, TX1 of 370.0570 ppb30,573
City of Houston Willow ChaseHouston, TX1 of 200.0500 ppb12,285
West Sound Utility District #1Port Orchard, WA3 of 240.0500 ppb19,117
Harris County MUD 165Houston, TX1 of 250.0480 ppb17,763
Fort Leonard WoodFt Leonard Wood, MO1 of 220.0441 ppb34,000
EdinaEdina, MN1 of 580.0207 ppb49,050
Larchmont UtilitiesSavannah, GA1 of 410.0178 ppb11,799
Wallingford Water DepartmentWallingford, CT1 of 350.0143 ppb37,267
Monroe Twp MUAWilliamstown, NJ1 of 2960.000203 ppb26,179

* 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 1,3,5-Trimethylbenzene, but it likely has the contaminant in its water supply.