Aldrin

City of Sherman

Aldrin is a pesticide that was banned in the 1970s due to its toxicity to people and wildlife, and its tendency to persist and accumulate in the environment.

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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	4	ND
2015	ND	15	ND
2016	ND	5	ND
2017	ND	5	ND
2018	ND	10	ND
2019	ND	5	ND

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-04-22	Q1412762002	ND
2014-04-22	Q1412762001	ND
2014-08-20	Q1438015028	ND
2014-08-20	Q1438015027	ND
2015-03-17	Q1509888002	ND
2015-03-17	Q1509888001	ND
2015-04-23	Q1515169035	ND
2015-04-23	Q1515169032	ND
2015-04-23	Q1515169033	ND
2015-04-23	Q1515169034	ND
2015-04-23	Q1515169036	ND
2015-04-23	Q1515169018	ND
2015-04-23	Q1515169019	ND
2015-04-23	Q1515169020	ND
2015-07-22	Q1528508004	ND
2015-07-22	Q1528508003	ND
2015-09-09	Q1535058001	ND
2015-11-03	Q1543355006	ND
2015-11-03	Q1543355001	ND
2016-01-20	Q1602479016	ND
2016-01-20	Q1602479015	ND
2016-04-11	Q1614214013	ND
2016-04-11	Q1614214005	ND
2016-11-08	Q1648503001	ND
2017-01-12	Q1701556003	ND
2017-01-12	Q1701556008	ND
2017-10-10	Q1751594033	ND
2017-10-10	Q1751594032	ND
2017-11-14	Q1758437003	ND
2018-01-10	Q1801240016	ND
2018-01-10	Q1801240013	ND
2018-01-10	Q1801240014	ND
2018-01-10	Q1801240015	ND
2018-01-10	Q1801240017	ND
2018-01-10	Q1801240018	ND
2018-01-10	Q1801240019	ND
2018-07-05	Q1826605003	ND
2018-08-20	Q1833198001	ND
2018-11-29	Q1848810002	ND
2019-02-12	Q1906434010	ND
2019-02-12	Q1906434009	ND
2019-02-12	Q1906434008	ND
2019-05-07	Q1922272013	ND
2019-05-07	Q1922272014	ND