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National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

DCPA mono acid degradate


Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.

DCPA mono acid degradate is a residue of Dacthal (DCPA),an herbicide used for urban, household and agricultural applications.

 
Detected
Found above
health guidelines
Found above
legal limit
States
2
-
-
Water utilities
3
-
-
People Served
48,452
-
-

DCPA mono acid degradate Exposure by State

Water utilities in 2 states have reported detecting DCPA mono acid degradate in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with DCPA mono acid degradate contamination
SystemsPopulation
New York248,400
Nevada152
Total348,452

The Most Polluted Communities

3 water utilities reported detecting DCPA mono acid degradate in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average DCPA mono acid degradate level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1WA of Great Neck North
Great Neck, NY
31,40035 of 405.32 ppb
(0 to 19 ppb)
2Roslyn Wd
Roslyn, NY
17,0009 of 230.73 ppb
(0 to 4.1 ppb)
3Valley View Tp
Ely, NV
521 of 10.3 ppb
(0.3 ppb)

Testing Summary for DCPA mono acid degradate

Are tests routinely required for DCPA mono acid degradate by federal law?No
Water suppliers reporting tests for DCPA mono acid degradate (2004-2008):32 of 47,576
Average testing rate for water supplier reporting tests (2004-2008):0.7 per year