Dalapon

City of Clute

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

107

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.150 ppb	18	2	ND - 1.40 ppb
2015	ND	16	0	ND
2016	ND	16	0	ND
2017	ND	19	0	ND
2018	ND	22	0	ND
2019	ND	16	0	ND

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
2014-02-07	AC41985	ND
2014-02-07	AC41987	ND
2014-03-05	AC45670	ND
2014-03-05	AC45653	ND
2014-03-05	AC45664	ND
2014-03-05	AC45668	ND
2014-04-10	AC50201	ND
2014-04-10	AC50184	ND
2014-04-10	AC50179	ND
2014-04-10	AC50165	ND
2014-07-30	AC61655	ND
2014-07-30	AC61609	ND
2014-07-30	AC61612	ND
2014-07-30	AC61618	ND
2014-10-02	AC68770	ND
2014-10-02	AC68787	ND
2014-10-02	AC68789	1.30 ppb
2014-10-02	AC68788	1.40 ppb
2015-01-16	AC76627	ND
2015-01-16	AC76622	ND
2015-01-16	AC76624	ND
2015-01-16	AC76614	ND
2015-04-06	AC87334	ND
2015-04-06	AC87338	ND
2015-04-06	AC87325	ND
2015-04-06	AC87335	ND
2015-07-14	AC99355	ND
2015-07-14	AC99375	ND
2015-07-14	AC99343	ND
2015-07-14	AC99341	ND
2015-10-05	AD09370	ND
2015-10-05	AD09387	ND
2015-10-05	AD09385	ND
2015-10-05	AD09384	ND
2016-02-02	AD21445	ND
2016-02-02	AD21444	ND
2016-02-02	AD21418	ND
2016-02-02	AD21421	ND
2016-04-07	AD32279	ND
2016-04-07	AD32280	ND
2016-04-07	AD32284	ND
2016-04-07	AD32267	ND
2016-07-05	AD42900	ND
2016-07-05	AD42898	ND
2016-07-05	AD42914	ND
2016-07-05	AD42910	ND
2016-10-05	AD52551	ND
2016-10-05	AD52544	ND
2016-10-05	AD52548	ND
2016-10-05	AD52562	ND
2017-01-05	AD63194	ND
2017-01-05	AD63198	ND
2017-01-05	AD63197	ND
2017-01-05	AD63195	ND
2017-03-21	AD76126	ND
2017-04-05	AD78509	ND
2017-04-05	AD78508	ND
2017-04-05	AD78510	ND
2017-04-05	AD78507	ND
2017-07-14	AD89473	ND
2017-07-14	AD89468	ND
2017-07-14	AD89467	ND
2017-07-14	AD89471	ND
2017-10-05	AD99508	ND
2017-10-05	AD99510	ND
2017-10-05	AD99509	ND
2017-10-05	AD99512	ND
2017-10-05	AD99621	ND
2017-10-05	AD99620	ND
2018-01-08	AE08157	ND
2018-01-08	AE08156	ND
2018-01-08	AE08030	ND
2018-01-08	AE08037	ND
2018-01-08	AE08021	ND
2018-01-08	AE08032	ND
2018-04-05	AE21496	ND
2018-04-05	AE21497	ND
2018-04-05	AE21428	ND
2018-04-05	AE21438	ND
2018-04-05	AE21430	ND
2018-04-05	AE21435	ND
2018-07-12	AE33202	ND
2018-07-12	AE33201	ND
2018-07-12	AE33128	ND
2018-07-12	AE33127	ND
2018-07-12	AE33129	ND
2018-07-12	AE33130	ND
2018-11-15	AE46220	ND
2018-11-15	AE46223	ND
2018-11-15	AE46221	ND
2018-11-15	AE46217	ND
2019-02-12	AE54054	ND
2019-02-12	AE54050	ND
2019-02-12	AE54061	ND
2019-02-12	AE54051	ND
2019-04-01	AE60660	ND
2019-04-01	AE60658	ND
2019-04-01	AE60659	ND
2019-04-01	AE60661	ND
2019-07-22	AE75279	ND
2019-07-22	AE75314	ND
2019-07-22	AE75312	ND
2019-07-22	AE75311	ND
2019-10-29	AE87856	ND
2019-10-29	AE87858	ND
2019-10-29	AE87863	ND
2019-10-29	AE87859	ND