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EWG's Tap Water Database — 2019 UPDATE

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Dalapon

City of Comanche

NOTE: City of Comanche purchases water from Upper Leon River Municipal Water District which is required to test for dalapon. Sample information shown below was taken by Upper Leon River Municipal Water District.

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

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND10ND
2014ND80ND
2015ND80ND
20160.238 ppb81ND - 1.90 ppb
2017ND80ND

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

NOTE: City of Comanche purchases water from Upper Leon River Municipal Water District which is required to test for dalapon. Sample information shown below was taken by Upper Leon River Municipal Water District.

Date Lab ID Result
2012-03-15AB84234ND
2012-06-19AB93250ND
2012-09-25AC02091ND
2013-03-061303230006ND
2014-03-18AC47358ND
2014-06-26AC58214ND
2014-09-24AC68078ND
2014-12-03AC73471ND
2015-02-19AC81323ND
2015-04-08AC87700ND
2015-08-05AD02630ND
2015-10-06AD09609ND
2016-01-13AD17879ND
2016-04-14AD33188ND
2016-04-14AD33270ND
2016-08-03AD46875ND
2016-10-12AD53160ND
2017-03-15AD75429ND
2017-05-16AD84660ND
2017-08-24AD94157ND
2017-11-15AE05184ND