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EWG's Tap Water Database — 2019 UPDATE

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Dalapon

City of Kerrville

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

 

106

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
20130.0435 ppb231ND - 1.000 ppb
20140.286 ppb214ND - 2.20 ppb
2015ND160ND
20160.282 ppb174ND - 1.40 ppb
20170.0429 ppb281ND - 1.20 ppb

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
2012-10-041210228009ND
2013-01-23AC08569ND
2013-01-23AC08542ND
2013-01-23AC08544ND
2013-01-23AC08545ND
2013-01-23AC08541ND
2013-01-23AC08538ND
2013-01-23AC08543ND
2013-04-11AC16433ND
2013-04-11AC16438ND
2013-04-11AC16437ND
2013-04-11AC16440ND
2013-04-11AC16439ND
2013-04-11AC16436ND
2013-07-29AC26074ND
2013-07-29AC26073ND
2013-07-29AC26075ND
2013-07-29AC26072ND
2013-07-29AC26100ND
2013-07-29AC26101ND
2013-10-17AC32410ND
2013-10-17AC32409ND
2013-10-17AC32412ND
2013-10-17AC324111.000 ppb
2014-02-10AC41884ND
2014-02-10AC41885ND
2014-02-10AC41886ND
2014-02-10AC41887ND
2014-04-07AC49531ND
2014-04-07AC49530ND
2014-04-07AC49596ND
2014-04-07AC49595ND
2014-04-07AC49623ND
2014-05-28AC55372ND
2014-07-16AC59858ND
2014-07-16AC598991.20 ppb
2014-07-16AC59871ND
2014-07-16AC599002.20 ppb
2014-07-16AC59869ND
2014-10-15AC69754ND
2014-10-15AC69753ND
2014-10-15AC697831.40 ppb
2014-10-15AC69779ND
2014-10-15AC697841.20 ppb
2014-10-15AC69778ND
2015-01-28AC78117ND
2015-01-28AC78118ND
2015-01-28AC78129ND
2015-01-28AC78116ND
2015-04-15AC88342ND
2015-04-15AC88340ND
2015-04-15AC88339ND
2015-04-15AC88341ND
2015-07-20AD00076ND
2015-07-20AD00078ND
2015-07-20AD00085ND
2015-07-20AD00081ND
2015-10-13AD10439ND
2015-10-13AD10429ND
2015-10-13AD10431ND
2015-10-13AD10430ND
2016-02-01AD21211ND
2016-02-01AD21038ND
2016-02-01AD21042ND
2016-02-01AD21043ND
2016-02-01AD21040ND
2016-04-18AD33318ND
2016-04-18AD33319ND
2016-04-18AD33320ND
2016-04-18AD33316ND
2016-07-05AD429161.30 ppb
2016-07-05AD429171.40 ppb
2016-07-05AD42909ND
2016-07-05AD429151.10 ppb
2016-10-24AD542781.000 ppb
2016-10-24AD54279ND
2016-10-24AD54284ND
2016-10-24AD54285ND
2017-02-13AD70362ND
2017-02-13AD70360ND
2017-02-13AD70353ND
2017-02-13AD70357ND
2017-04-06AD78785ND
2017-04-06AD78711ND
2017-04-06AD78712ND
2017-04-06AD78713ND
2017-04-06AD78710ND
2017-05-08AD83157ND
2017-05-08AD83154ND
2017-05-09AD83420ND
2017-05-09AD83421ND
2017-05-09AD83416ND
2017-05-22AD85094ND
2017-07-05AD88288ND
2017-07-05AD882891.20 ppb
2017-07-05AD88287ND
2017-07-05AD88290ND
2017-07-05AD88358ND
2017-07-05AD88359ND
2017-07-05AD88360ND
2017-10-09AD99756ND
2017-10-09AD99757ND
2017-10-09AD99760ND
2017-10-09AD99755ND
2017-10-09AD99896ND
2017-10-09AD99895ND