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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

City of Laredo

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

 

222

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
2015ND360ND
20160.0667 ppb331ND - 2.20 ppb
2017ND320ND
2018ND400ND
2019ND490ND

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
2014-02-19AC43566ND
2014-02-19AC43569ND
2014-02-19AC43532ND
2014-02-19AC43564ND
2014-02-19AC43567ND
2014-02-19AC43549ND
2014-02-19AC43531ND
2014-02-19AC43562ND
2014-06-13AC56972ND
2014-06-13AC56976ND
2014-06-13AC56950ND
2014-06-13AC56928ND
2014-06-13AC56968ND
2014-06-13AC56927ND
2014-06-13AC56969ND
2014-06-13AC56971ND
2014-08-22AC65109ND
2014-08-22AC65110ND
2014-08-22AC65104ND
2014-08-22AC65126ND
2014-08-22AC65107ND
2014-08-22AC65111ND
2014-08-22AC65108ND
2014-08-22AC65127ND
2014-12-03AC73563ND
2014-12-03AC73532ND
2014-12-03AC73534ND
2014-12-03AC73564ND
2014-12-03AC73535ND
2014-12-03AC73529ND
2014-12-03AC73536ND
2014-12-03AC73528ND
2015-03-16AC84371ND
2015-03-16AC84374ND
2015-03-16AC84378ND
2015-03-16AC84400ND
2015-03-16AC84372ND
2015-03-16AC84373ND
2015-03-16AC84381ND
2015-03-16AC84380ND
2015-06-09AC95240ND
2015-06-09AC95248ND
2015-06-09AC95235ND
2015-06-09AC95251ND
2015-06-09AC95239ND
2015-06-09AC95249ND
2015-06-09AC95250ND
2015-06-09AC95245ND
2015-09-15AD07076ND
2015-09-15AD07075ND
2015-09-15AD07060ND
2015-09-15AD07070ND
2015-09-15AD07077ND
2015-09-15AD07072ND
2015-09-15AD07063ND
2015-09-15AD07064ND
2015-11-17AD13809ND
2015-11-17AD13811ND
2015-11-17AD13806ND
2015-11-17AD13793ND
2015-11-17AD13813ND
2015-11-17AD13805ND
2015-11-17AD13808ND
2015-11-17AD13812ND
2015-11-17AD13893ND
2015-11-18AD14097ND
2015-11-18AD14095ND
2015-12-14AD16870ND
2016-02-17AD23890ND
2016-02-17AD23891ND
2016-02-17AD23872ND
2016-02-17AD23882ND
2016-02-17AD23892ND
2016-02-17AD23884ND
2016-02-17AD23873ND
2016-03-21AD29865ND
2016-06-20AD41406ND
2016-06-20AD41313ND
2016-06-20AD413432.20 ppb
2016-06-20AD41312ND
2016-06-20AD41320ND
2016-06-20AD41310ND
2016-06-20AD41309ND
2016-06-20AD41307ND
2016-06-20AD41345ND
2016-07-21AD45222ND
2016-07-21AD45217ND
2016-07-21AD45203ND
2016-07-21AD45218ND
2016-07-21AD45220ND
2016-07-21AD45205ND
2016-07-21AD45216ND
2016-07-21AD45204ND
2016-10-31AD55436ND
2016-10-31AD55433ND
2016-10-31AD55438ND
2016-10-31AD55437ND
2016-10-31AD55427ND
2016-10-31AD55435ND
2016-10-31AD55443ND
2016-10-31AD55434ND
2017-02-21AD71226ND
2017-02-21AD71227ND
2017-02-21AD71228ND
2017-02-21AD71229ND
2017-02-21AD71230ND
2017-02-21AD71231ND
2017-02-21AD71232ND
2017-02-21AD71225ND
2017-06-19AD87351ND
2017-06-19AD87332ND
2017-06-19AD87353ND
2017-06-19AD87327ND
2017-06-19AD87329ND
2017-06-19AD87352ND
2017-06-19AD87328ND
2017-06-19AD87314ND
2017-09-05AD94703ND
2017-09-05AD94704ND
2017-09-05AD94711ND
2017-09-05AD94701ND
2017-09-05AD94702ND
2017-09-05AD94699ND
2017-09-05AD94708ND
2017-09-05AD94707ND
2017-12-05AE06733ND
2017-12-05AE06739ND
2017-12-05AE06738ND
2017-12-05AE06736ND
2017-12-05AE06734ND
2017-12-05AE06741ND
2017-12-05AE06737ND
2017-12-05AE06740ND
2018-03-05AE16613ND
2018-03-05AE16611ND
2018-03-05AE16594ND
2018-03-05AE16605ND
2018-03-05AE16604ND
2018-03-05AE16597ND
2018-03-05AE16606ND
2018-03-05AE16608ND
2018-04-30AE24361ND
2018-04-30AE24366ND
2018-04-30AE24360ND
2018-04-30AE24355ND
2018-04-30AE24356ND
2018-04-30AE24363ND
2018-04-30AE24354ND
2018-04-30AE24357ND
2018-07-16AE33636ND
2018-07-16AE33508ND
2018-07-16AE33511ND
2018-07-16AE33506ND
2018-07-16AE33531ND
2018-07-16AE33510ND
2018-07-16AE33529ND
2018-07-16AE33536ND
2018-07-16AE33537ND
2018-10-16AE43668ND
2018-10-16AE43669ND
2018-10-16AE43670ND
2018-11-20AE46618ND
2018-11-20AE46619ND
2018-11-20AE46627ND
2018-11-20AE46624ND
2018-11-20AE46625ND
2018-11-20AE46616ND
2018-11-20AE46621ND
2018-11-20AE46626ND
2018-11-20AE46617ND
2018-11-20AE46623ND
2018-11-20AE46622ND
2018-11-20AE46620ND
2019-03-11AE57901ND
2019-03-12AE58034ND
2019-03-12AE58035ND
2019-03-12AE58040ND
2019-03-12AE58038ND
2019-03-12AE58043ND
2019-03-12AE58036ND
2019-03-12AE58039ND
2019-03-12AE58041ND
2019-03-12AE58044ND
2019-03-12AE58042ND
2019-03-12AE58033ND
2019-03-12AE58032ND
2019-06-06AE69428ND
2019-06-06AE69433ND
2019-06-06AE69429ND
2019-06-06AE69436ND
2019-06-06AE69437ND
2019-06-06AE69426ND
2019-06-06AE69432ND
2019-06-06AE69430ND
2019-06-06AE69434ND
2019-06-06AE69435ND
2019-06-06AE69427ND
2019-06-06AE69431ND
2019-08-20AE79821ND
2019-08-20AE79822ND
2019-08-20AE79803ND
2019-08-20AE79807ND
2019-08-20AE79802ND
2019-08-20AE79820ND
2019-08-20AE79818ND
2019-08-20AE79806ND
2019-08-20AE79805ND
2019-08-20AE79824ND
2019-08-20AE79825ND
2019-08-20AE79804ND
2019-12-18AE92932ND
2019-12-18AE92924ND
2019-12-18AE92921ND
2019-12-18AE92927ND
2019-12-18AE92929ND
2019-12-18AE92928ND
2019-12-18AE92923ND
2019-12-18AE92922ND
2019-12-18AE92930ND
2019-12-18AE92925ND
2019-12-18AE92933ND
2019-12-18AE92926ND