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National Drinking Water Database

Dicamba in Maryland

Dicamba is an herbicide applied in agriculture, rangeland, pasture and industry; it is used for corn, wheat and other crops. [read more]

The Most Polluted Communities in Maryland

11 water utilities reported detecting Dicamba in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Dicamba level

RankSystem Population Served Positive test results of total reported tests Average Level
1Piney Creek Corporation
Chester, MD
311 of 10.13 ppb
(0.13 ppb)
2Wayson's Mobile Court
Lothian, MD
5401 of 20.11 ppb
(0 to 0.21 ppb)
3Clear View Mobile Home Park
Darlington, MD
281 of 30.05 ppb
(0 to 0.15 ppb)
4Chapel Hill
Aberdeen, MD
13,1521 of 40.03 ppb
(0 to 0.13 ppb)
5Town of Federalsburg
Federalsburg, MD
2,4501 of 10.03 ppb
(0.03 ppb)
6Town of Elkton
Elkton, MD
12,4581 of 40.03 ppb
(0 to 0.1 ppb)
Oakland, MD
1,8501 of 40.02 ppb
(0 to 0.07 ppb)
Williamsport, MD
9641 of 40.02 ppb
(0 to 0.07 ppb)
9Town of North East
North East, MD
5,1901 of 7< 0.01 ppb
(0 to 0.04 ppb)
10Town of Manchester
Manchester, MD
4,0001 of 10< 0.01 ppb
(0 to 0.05 ppb)

Health Based Limits for Dicamba

Health-Based Screening LevelA benchmark concentration of contaminants in water that may be of potential concern for human health, if exceeded. For noncarcinogens, the HBSL represents the contaminant concentration in drinking water that is not expected to cause any adverse effects over a lifetime of exposure. For carcinogens, the HBSL range represents the contaminant concentration in drinking water that corresponds to an excess estimated lifetime cancer risk of 1 chance in 1 million to 1 chance in 10 thousand. Source: U.S. Geological Survey.3000 ppb
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.4000 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.18000 ppb

Violation Summary for Dicamba in Maryland

There are no violations reported for this contaminant in Maryland