Know Your Environment. Protect Your Health.

Alpha-hexachlorocyclohexane

City of Tigard

NOTE: City of Tigard purchases water from Lake Oswego - Tigard Water Supply which is required to test for alpha-hexachlorocyclohexane. Sample information shown below was taken by Lake Oswego - Tigard Water Supply.

Alpha-HCH is a byproduct of the production of the insecticide lindane, which is no longer used in the U.S. The International Agency for Research on Cancer has classified all forms of this chemical as possibly carcinogenic to humans.

 

0

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND110ND
2020ND30ND
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

All test results

NOTE: City of Tigard purchases water from Lake Oswego - Tigard Water Supply which is required to test for alpha-hexachlorocyclohexane. Sample information shown below was taken by Lake Oswego - Tigard Water Supply.

Date Lab ID Result