Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dalapon

City of Pharr

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

 

194

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
2014ND320ND
2015ND320ND
2016ND330ND
2017ND320ND
2018ND320ND
2019ND330ND

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
2014-02-27AC45026ND
2014-02-27AC45035ND
2014-02-27AC45017ND
2014-02-27AC45033ND
2014-02-27AC45031ND
2014-02-27AC45013ND
2014-02-27AC45025ND
2014-02-27AC45027ND
2014-04-24AC51677ND
2014-04-24AC51675ND
2014-04-24AC51708ND
2014-04-24AC51679ND
2014-04-24AC51676ND
2014-04-24AC51707ND
2014-04-24AC51678ND
2014-04-24AC51713ND
2014-07-11AC59580ND
2014-07-11AC59574ND
2014-07-11AC59577ND
2014-07-11AC59572ND
2014-07-11AC59581ND
2014-07-11AC59617ND
2014-07-11AC59582ND
2014-07-11AC59614ND
2014-10-09AC69404ND
2014-10-09AC69409ND
2014-10-09AC69415ND
2014-10-09AC69414ND
2014-10-09AC69410ND
2014-10-09AC69413ND
2014-10-09AC69405ND
2014-10-09AC69416ND
2015-01-23AC77726ND
2015-01-23AC77756ND
2015-01-23AC77737ND
2015-01-23AC77718ND
2015-01-23AC77746ND
2015-01-23AC77751ND
2015-01-23AC77735ND
2015-01-23AC77719ND
2015-05-08AC91269ND
2015-05-08AC91293ND
2015-05-08AC91274ND
2015-05-08AC91264ND
2015-05-08AC91296ND
2015-05-08AC91297ND
2015-05-08AC91298ND
2015-05-08AC91253ND
2015-07-17AD00079ND
2015-07-17AD00109ND
2015-07-17AD00084ND
2015-07-17AD00082ND
2015-07-17AD00080ND
2015-07-17AD00083ND
2015-07-17AD00110ND
2015-08-07AD03220ND
2015-10-23AD11676ND
2015-10-23AD11683ND
2015-10-23AD11693ND
2015-10-23AD11686ND
2015-10-23AD11687ND
2015-10-23AD11679ND
2015-10-23AD11689ND
2015-10-23AD11682ND
2016-03-01AD26459ND
2016-03-22AD29866ND
2016-03-22AD29868ND
2016-03-22AD29871ND
2016-03-22AD29869ND
2016-03-22AD29863ND
2016-03-22AD29870ND
2016-03-22AD29861ND
2016-03-22AD29862ND
2016-06-08AD39715ND
2016-06-08AD39753ND
2016-06-08AD39711ND
2016-06-08AD39710ND
2016-06-08AD39752ND
2016-06-08AD39712ND
2016-06-08AD39713ND
2016-06-08AD39750ND
2016-07-15AD44446ND
2016-07-15AD44445ND
2016-07-15AD44449ND
2016-07-15AD44441ND
2016-07-15AD44444ND
2016-07-15AD44439ND
2016-07-15AD44448ND
2016-07-15AD44447ND
2016-10-28AD55408ND
2016-10-28AD55397ND
2016-10-28AD55413ND
2016-10-28AD55401ND
2016-10-28AD55405ND
2016-10-28AD55406ND
2016-10-28AD55400ND
2016-10-28AD55407ND
2017-02-10AD70355ND
2017-02-10AD70358ND
2017-02-10AD70354ND
2017-02-10AD70359ND
2017-02-10AD70352ND
2017-02-10AD70350ND
2017-02-10AD70361ND
2017-02-10AD70351ND
2017-04-19AD80145ND
2017-04-19AD80149ND
2017-04-19AD80137ND
2017-04-19AD80150ND
2017-04-19AD80142ND
2017-04-19AD80138ND
2017-04-19AD80144ND
2017-04-19AD80124ND
2017-07-13AD89243ND
2017-07-13AD89272ND
2017-07-13AD89245ND
2017-07-13AD89234ND
2017-07-13AD89271ND
2017-07-13AD89247ND
2017-07-13AD89249ND
2017-07-13AD89241ND
2017-10-31AE02901ND
2017-10-31AE02912ND
2017-10-31AE02906ND
2017-10-31AE02917ND
2017-10-31AE02903ND
2017-10-31AE02900ND
2017-10-31AE02905ND
2017-10-31AE02894ND
2018-02-15AE14053ND
2018-02-15AE14049ND
2018-02-15AE14057ND
2018-02-15AE14033ND
2018-02-15AE14034ND
2018-02-15AE14054ND
2018-02-15AE14055ND
2018-02-15AE14041ND
2018-05-15AE26332ND
2018-05-15AE26335ND
2018-05-15AE26339ND
2018-05-15AE26349ND
2018-05-15AE26336ND
2018-05-15AE26351ND
2018-05-15AE26330ND
2018-05-15AE26350ND
2018-07-10AE32774ND
2018-07-10AE32775ND
2018-07-10AE32767ND
2018-07-10AE32766ND
2018-07-10AE32768ND
2018-07-10AE32776ND
2018-07-10AE32771ND
2018-07-10AE32773ND
2018-11-08AE45737ND
2018-11-08AE45761ND
2018-11-08AE45746ND
2018-11-08AE45741ND
2018-11-08AE45736ND
2018-11-08AE45742ND
2018-11-08AE45739ND
2018-11-08AE45760ND
2019-02-14AE54731ND
2019-02-14AE54730ND
2019-02-14AE54721ND
2019-02-14AE54722ND
2019-02-14AE54728ND
2019-02-14AE54724ND
2019-02-14AE54727ND
2019-02-14AE54726ND
2019-05-02AE64712ND
2019-05-02AE64603ND
2019-05-02AE64611ND
2019-05-02AE64623ND
2019-05-02AE64593ND
2019-05-02AE64591ND
2019-05-02AE64610ND
2019-05-02AE64592ND
2019-05-02AE64624ND
2019-09-05AE82266ND
2019-09-05AE82245ND
2019-09-05AE82254ND
2019-09-05AE82250ND
2019-09-05AE82246ND
2019-09-05AE82267ND
2019-09-05AE82244ND
2019-09-05AE82252ND
2019-12-04AE91224ND
2019-12-04AE91235ND
2019-12-04AE91232ND
2019-12-04AE91233ND
2019-12-04AE91225ND
2019-12-04AE91222ND
2019-12-04AE91221ND
2019-12-04AE91234ND