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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Soquel Creek Water District

The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.

MORE ABOUT THIS CONTAMINANT

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND250ND
2015N/A00N/A
2016N/A00N/A
2017ND150ND
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-091644-049-0930ND
2014-09-221644-005-1015ND
2014-09-221644-004-0950ND
2014-09-221644-003-1040ND
2014-09-221644-036-1340ND
2014-09-231644-034-1440ND
2014-09-231644-007-1305ND
2014-09-231644-002-1455ND
2014-09-231644-022-1335ND
2014-09-231644-049-0935ND
2014-09-241644-037-1145ND
2014-09-241644-047-1335ND
2014-09-251644-012-1050ND
2014-12-151644-022-1458ND
2014-12-151644-037-1122ND
2014-12-151644-047-1443ND
2014-12-181644-034-0845ND
2014-12-181644-007-0918ND
2014-12-181644-002-0903ND
2014-12-191644-004-1440ND
2014-12-191644-049-0933ND
2014-12-191644-003-1118ND
2014-12-221644-036-1255ND
2014-12-231644-005-1200ND
2014-12-231644-012-1505ND
2017-05-169590-013-1425ND
2017-08-229590-004-1050ND
2017-09-139590-005-1234ND
2017-09-139590-036-1407ND
2017-09-199590-049-1109ND
2017-10-039590-054-1340ND
2017-10-049590-037-1155ND
2017-10-049590-054-1155ND
2017-10-059590-047-1102ND
2017-10-059590-034-1207ND
2017-10-109590-022-1311ND
2017-10-129590-014-1335ND
2017-10-129590-012-0733ND
2017-10-249590-013-1106ND
2017-10-249590-007-1033ND