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EWG's Tap Water Database — 2019 UPDATE

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p-Dichlorobenzene

Status: National drinking water standard exists

 

p-Dichlorobenzene is a carcinogenic insecticide used in mothballs, and added to deodorant blocks made for trash cans and toilets. Long-term exposure can cause liver damage and kidney problems.

2015-2017:

FOUND
FOUND ABOVE HEALTH GUIDELINES

26

states detected

178

utilities detected

1.8 million

people served

0

states over health guideline

0

utilities over health guideline

0

people served over health guideline

Health concerns for p-dichlorobenzene

Cancer

Harm to the liver

Harm to the kidney

Harm to the thyroid

State and national drinking water standards and health guidelines

EWG Health Guideline 6 ppb

The EWG Health Guideline of 6 ppb for p-dichlorobenzene 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 cancer.

EPA Maximum Contaminant
Level (MCL) 75 ppb

The legal limit for p-dichlorobenzene, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1980s. This limit may not fully protect against the risk of cancer due to p-dichlorobenzene exposure.

ppb = parts per billion

States reporting p-dichlorobenzene in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Florida19495,509
Louisiana53396,913
Wisconsin19302,875
Massachusetts6216,910
New Jersey586,410
Missouri2575,691
Iowa1371,730
Connecticut137,267
South Carolina522,572
New Hampshire215,650
Oregon312,945
Texas27,364
Ohio36,907
West Virginia15,775
Minnesota45,013
Oklahoma34,955
Mississippi44,272
Alabama13,969
Arkansas12,312
North Dakota11,878
Pennsylvania2688
New York1315
Alaska1150
Vermont1126
Arizona1107
Maryland185
MORE
LESS

Filtering technologies that reduce p-dichlorobenzene

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of p-dichlorobenzene, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Roland Water SupplyRoland, IA9 of 105.94 ppb1,284
Langdon, City ofLangdon, ND1 of 23.50 ppb1,878
Howard WaterworksGreen Bay, WI1 of 12.20 ppb18,900
Brown Deer WaterworksBrown Deer, WI1 of 12.20 ppb12,741
Choctaw County Rural Water System & Solid Waste Management District #6*Boswell, OK1 of 31.56 ppb850
Atoka County Rural Water, Sewer & Solid Waste Management District #4*Atoka, OK1 of 31.56 ppb3,000
Stringtown Public Works AuthorityStringtown, OK1 of 31.56 ppb1,105
Catalpa Grove Mobile Home ParkSpringfield, OH1 of 31.42 ppb27
Northwoods EstatesEvans Mills, NY1 of 21.15 ppb315
Aqua Pa OneidaWhite Haven, PA2 of 61.13 ppb568
Bogue Chitto Water AssociationBogue Chitto, MS10 of 221.09 ppb2,150
Belmont Water Department/northMerrimack, NH3 of 71.07 ppb150
Laconia Water Works*Belmont, NH3 of 71.07 ppb15,500
Greendale WaterworksGreendale, WI8 of 80.953 ppb14,046
Greenleaf WaterworksGreenleaf, WI2 of 40.903 ppb650
Farragut Water SupplyFarragut, IA1 of 10.900 ppb485
Golovin Community Water SystemGolovin, AK2 of 70.861 ppb150
Monroe County Public Water Supply District 2Laddonia, MO3 of 40.860 ppb6,677
Shelbyville PWSShelbville, MO3 of 40.860 ppb552
Clarence Cannon Wholesale Water Commission*Stoutsville, MO3 of 40.860 ppb25
Lewis County Public Water Supply District 1*Ewing, MO3 of 40.860 ppb1,688
La Belle PWSLa Belle, MO3 of 40.860 ppb660
New London PWSNew London, MO3 of 40.860 ppb975
Edina PWSEdina, MO3 of 40.860 ppb1,153
Knox County Public Water & Sewer District 1*Knox City, MO3 of 40.860 ppb4,298
Wellsville PWSWellsville, MO3 of 40.860 ppb1,270
Shelby County Public Water Supply District 1*Shelbyville, MO3 of 40.860 ppb3,120
Paris PWSParis, MO3 of 40.860 ppb1,250
Farber PWSFarber, MO3 of 40.860 ppb450
Thomas Hill PWSD 1*Moberly, MO3 of 40.860 ppb10,315
Madison PWSMadison, MO3 of 40.860 ppb554
Perry PWSPerry, MO3 of 40.860 ppb694
Huntsville PWSHuntsville, MO3 of 40.860 ppb1,563
Lewistown PWSLewistown, MO3 of 40.860 ppb580
Curryville PWSCurryville, MO3 of 40.860 ppb255
City of LulingLuling, TX2 of 30.833 ppb7,364
Gbra Luling Plant*Seguin, TX2 of 30.833 ppb0
Carter Lake Water DistrictCarter Lake, IA1 of 10.800 ppb3,785
Bayou Teche Water WorksLoreauville, LA2 of 120.633 ppb9,669
Symonds Water AssociationPace, MS1 of 30.617 ppb108
Rector WaterworksRector, AR2 of 80.604 ppb2,312
Keokuk Municipal Water Works*Keokuk, IA2 of 30.600 ppb10,780
Fonda Water SupplyFonda, IA1 of 10.600 ppb666
Coburn Mobile Home ParkMontpelier, VT3 of 30.567 ppb126
West Manchester Village Public Water SystemWest Manchester, OH1 of 20.545 ppb480
Boone Water Works*Boone, IA2 of 30.533 ppb12,909
Logansport Water District #1Ft Dodge, IA2 of 30.533 ppb150
Xenia Rural Water District (boone)*Bouton, IA2 of 30.533 ppb4,055
Roberts Creek Water DistrictRoseburg, OR4 of 60.483 ppb6,500
Town of EdwardsEdwards, MS2 of 40.461 ppb1,864

* 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 p-Dichlorobenzene, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Howard WaterworksGreen Bay, WI1 of 12.20 ppb18,900
Brown Deer WaterworksBrown Deer, WI1 of 12.20 ppb12,741
Laconia Water Works*Belmont, NH3 of 71.07 ppb15,500
Greendale WaterworksGreendale, WI8 of 80.953 ppb14,046
Thomas Hill PWSD 1*Moberly, MO3 of 40.860 ppb10,315
Keokuk Municipal Water Works*Keokuk, IA2 of 30.600 ppb10,780
Boone Water Works*Boone, IA2 of 30.533 ppb12,909
City of Jennings Water SystemJennings, LA6 of 60.313 ppb10,365
SIRWA #2 (Creston)*Creston, IA1 of 20.250 ppb18,510
Port Washington WaterworksPort Washington, WI1 of 10.200 ppb11,762
City of Abbeville Water SystemAbbeville, LA4 of 60.200 ppb15,012
Worcester Department of Public Works*Worcester, MA1 of 60.117 ppb181,045
Racine Waterworks*Racine, WI1 of 20.110 ppb105,100
Riviera Beach Utility District*Riviera Beach, FL4 of 440.0916 ppb31,500
Cudahy WaterworksCudahy, WI2 of 40.0850 ppb18,659
North Attleboro Water Department*North Attleborough, MA1 of 190.0437 ppb28,712
Miramar (East & West) PlantsMiramar, FL1 of 60.0417 ppb128,729
Winslow Township DMU*Braddock, NJ5 of 190.0411 ppb39,174
Janesville Water UtilityJanesville, WI3 of 120.0383 ppb62,720
Whitewater WaterworksWhitewater, WI6 of 570.0370 ppb14,000
Wallingford Water DepartmentWallingford, CT1 of 170.0294 ppb37,267
Lee County Utilities*Fort Myers, FL1 of 70.0286 ppb236,944
United Water CamdenCamden, NJ4 of 210.0243 ppb46,585
Lafayette Utilities Water System*Lafayette, LA4 of 460.0217 ppb198,975
City of Youngsville Purchase WsYoungsville, LA4 of 460.0217 ppb14,259
LPWDN North RegionLafayette, LA4 of 460.0217 ppb17,910
LPWD SouthMaurice, LA4 of 460.0217 ppb13,089
City of Stuart - Water PlantStuart, FL2 of 490.0114 ppb19,000
Peoples Water Service CompanyPensacola, FL1 of 1230.00236 ppb34,352

* 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 p-Dichlorobenzene, but it likely has the contaminant in its water supply.