Alachlor (Lasso)

Cliffdale West

Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.

MORE ABOUT THIS CONTAMINANT

130

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	57	ND
2015	ND	4	ND
2016	ND	3	ND
2017	ND	57	ND
2018	ND	4	ND
2019	ND	5	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for alachlor, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-16	C315506-02	ND
2014-01-16	C315508-01	ND
2014-02-06	C315520-01	ND
2014-02-18	C315523-01	ND
2014-02-18	C315523-02	ND
2014-02-18	C315523-04	ND
2014-02-19	C402029-02RE1	ND
2014-02-19	C402032-01	ND
2014-02-19	C315510-01	ND
2014-02-19	C315510-03	ND
2014-02-19	C315510-04	ND
2014-02-19	C315514-01	ND
2014-02-19	C315516-01	ND
2014-02-19	C315516-02	ND
2014-02-19	C315518-01	ND
2014-02-19	C315518-02	ND
2014-02-19	C315525-01	ND
2014-02-19	C315531-01	ND
2014-02-20	C315533-01	ND
2014-02-20	C402029-01	ND
2014-02-20	C402029-03	ND
2014-02-24	C315529-01	ND
2014-02-25	C401922-01	ND
2014-02-25	C402031-01RE1	ND
2014-02-25	C402103-01	ND
2014-02-27	C315527-01	ND
2014-02-27	C400772-01	ND
2014-02-27	C402101-01	ND
2014-04-03	C402236-01	ND
2014-04-03	C402236-02	ND
2014-04-03	C402236-03	ND
2014-04-08	C404448-01	ND
2014-04-08	C404448-02	ND
2014-04-16	C402229-02	ND
2014-04-16	C405024-01	ND
2014-04-17	C402221-02	ND
2014-04-17	C402221-04	ND
2014-04-17	C402230-01	ND
2014-04-22	C402217-01	ND
2014-04-22	C402217-02	ND
2014-04-23	C402215-01	ND
2014-04-23	C402215-02	ND
2014-04-23	C402211-01	ND
2014-04-30	C402223-02	ND
2014-04-30	C405441-01	ND
2014-05-02	C402212-01	ND
2014-05-02	C402218-01	ND
2014-05-02	C402218-02	ND
2014-05-02	C402219-01	ND
2014-05-02	C402225-01	ND
2014-05-02	C405079-01	ND
2014-05-08	C405291-01	ND
2014-05-12	C404692-01	ND
2014-05-13	C405639-01	ND
2014-07-22	C402227-01	ND
2014-07-24	C407377-01	ND
2014-10-16	C411566-01	ND
2015-04-07		ND
2015-04-08		ND
2015-09-24		ND
2015-11-18		ND
2016-02-11	C515404-01	ND
2016-04-26	CZ02660-01	ND
2016-04-26	CZ02673-01	ND
2017-01-11	CZ17267-01	ND
2017-01-11	CZ17285-01	ND
2017-01-12	CZ17276-01	ND
2017-01-16	CZ17262-01	ND
2017-01-16	CZ17262-02	ND
2017-01-16	CZ17262-03	ND
2017-01-16	CZ17262-04	ND
2017-01-16	CZ17262-05	ND
2017-01-17	CA00792-01	ND
2017-01-17	CZ17269-02	ND
2017-01-17	CZ17269-03	ND
2017-01-18	CA00793-01	ND
2017-01-19	CA00916-01	ND
2017-01-19	CZ17273-01	ND
2017-01-25	CZ17280-01	ND
2017-01-26	CZ17278-01	ND
2017-01-27	CZ17264-01	ND
2017-01-27	CZ17271-01	ND
2017-01-27	CZ17283-01	ND
2017-01-27	CZ17283-02	ND
2017-02-02	CA01574-01RE2	ND
2017-02-06	CZ17258-01RE1	ND
2017-02-06	CZ17258-02RE1	ND
2017-02-07	CA01713-01RE1	ND
2017-02-08	CZ17260-01	ND
2017-02-15	CA02332-01	ND
2017-04-05	CA02306-02	ND
2017-04-05	CA02322-05	ND
2017-04-05	CA02302-01	ND
2017-04-05	CA02312-01	ND
2017-04-05	CA02314-01	ND
2017-04-06	CA02312-02	ND
2017-04-06	CA05361-01	ND
2017-04-10	CA05528-01	ND
2017-04-18	CA05918-01	ND
2017-04-21	CA06158-01	ND
2017-04-25	CA02310-01	ND
2017-04-26	CA02304-01	ND
2017-04-26	CA02316-01	ND
2017-04-26	CA02316-02	ND
2017-04-26	CA02303-01	ND
2017-04-26	CA02307-01	ND
2017-04-26	CA02307-02	ND
2017-04-26	CA02307-03	ND
2017-04-26	CA02317-01	ND
2017-05-12	CA07430-01	ND
2017-05-23	CA02308-01	ND
2017-05-23	CA08383-01	ND
2017-05-23	CA08383-02	ND
2017-05-24	CA08384-01	ND
2017-05-24	CA08384-02	ND
2017-06-13	CA05082-01	ND
2017-06-21	CA02315-01	ND
2017-07-19	CA07523-01	ND
2017-08-03	CA07528-01	ND
2017-08-10	CA12042-01	ND
2017-10-11	CA12727-01	ND
2018-01-17	CA17878-01	ND
2018-01-22	CA17866-01	ND
2018-01-31	CA17874-01	ND
2018-04-23	CB02594-01	ND
2019-01-15	CB17928-02	ND
2019-01-16	CB17932-01	ND
2019-02-05	CC01851-01	ND
2019-04-29	CC03004-01RE1	ND
2019-05-07	CC02992-01	ND