Know Your Environment. Protect Your Health.

Dalapon

El Tanque Water Supply Corporation

NOTE: El Tanque Water Supply Corporation purchases water from City of Rio Grande City which is required to test for dalapon. Sample information shown below was taken by City of Rio Grande City.

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

 

102

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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: El Tanque Water Supply Corporation purchases water from City of Rio Grande City which is required to test for dalapon. Sample information shown below was taken by City of Rio Grande City.

Date Lab ID Result
2018-03-09AE17815ND
2018-03-09AE17816ND
2018-03-09AE17818ND
2018-03-09AE17821ND
2018-05-15AE26341ND
2018-05-15AE26354ND
2018-05-15AE26356ND
2018-05-15AE26357ND
2018-08-31AE39124ND
2018-08-31AE39125ND
2018-08-31AE39126ND
2018-08-31AE39127ND
2018-08-31AE39181ND
2018-12-04AE47752ND
2018-12-04AE47754ND
2018-12-04AE47755ND
2018-12-04AE47757ND
2019-02-06AE53424ND
2019-02-06AE53425ND
2019-02-06AE53429ND
2019-02-06AE53441ND
2019-02-06AE53587ND
2019-06-14AE70812ND
2019-06-14AE70813ND
2019-06-14AE70821ND
2019-06-14AE70823ND
2019-09-13AE83527ND
2019-09-13AE83529ND
2019-09-13AE83533ND
2019-09-13AE83576ND
2019-12-06AE91860ND
2019-12-06AE91862ND
2019-12-06AE91866ND
2019-12-06AE91869ND
2020-03-10AF02231ND
2020-03-10AF02232ND
2020-03-10AF02233ND
2020-03-10AF02240ND
2020-05-20AF12324ND
2020-05-20AF12326ND
2020-05-20AF12331ND
2020-05-20AF12358ND
2020-06-16AF15888ND
2020-08-26AF25601ND
2020-08-26AF25603ND
2020-08-26AF25606ND
2020-08-26AF25607ND
2020-12-02AF36629ND
2020-12-02AF36645ND
2020-12-02AF36646ND
2020-12-02AF36663ND
2021-03-02AF44836ND
2021-03-02AF44837ND
2021-03-02AF44838ND
2021-03-02AF44840ND
2021-05-25AF55276ND
2021-05-25AF55279ND
2021-05-25AF55299ND
2021-05-25AF55300ND
2021-05-25AF55425ND
2021-08-12AF66042ND
2021-08-12AF66044ND
2021-08-12AF66060ND
2021-08-12AF66063ND
2021-12-22AF79255ND
2021-12-22AF79256ND
2021-12-30AF79323ND
2021-12-30AF79324ND
2022-02-08AF84234ND
2022-02-08AF84235ND
2022-02-08AF84238ND
2022-02-08AF84239ND
2022-05-11AF96900ND
2022-05-11AF97001ND
2022-05-11AF97002ND
2022-05-11AF97003ND
2022-08-17AG09664ND
2022-08-17AG09665ND
2022-08-17AG09666ND
2022-08-17AG09668ND
2022-08-17AG09781ND
2022-12-08AG21296ND
2022-12-08AG21304ND
2022-12-08AG21305ND
2022-12-08AG21306ND
2023-03-21AG33513ND
2023-03-21AG33514ND
2023-03-21AG33517ND
2023-03-21AG33518ND
2023-05-24AG41870ND
2023-05-24AG41897ND
2023-05-24AG41901ND
2023-05-24AG41903ND
2023-05-24AG41979ND
2023-09-12AG55771ND
2023-09-12AG55772ND
2023-09-12AG55773ND
2023-09-12AG55775ND
2023-11-16AG63983ND
2023-11-16AG63984ND
2023-11-16AG63986ND
2023-11-16AG63987ND