Know Your Environment. Protect Your Health.

4,4'-dde

City of West Richland

NOTE: City of West Richland purchases water from City of Richland which is required to test for 4,4'-dde. Sample information shown below was taken by City of Richland.

 

5

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020N/A00N/A
2021N/A00N/A
2022ND30ND
2023N/A00N/A

ppb = parts per billion

All test results

NOTE: City of West Richland purchases water from City of Richland which is required to test for 4,4'-dde. Sample information shown below was taken by City of Richland.

Date Lab ID Result
2018-05-09ND
2019-06-04ND
2019-06-04ND
2019-09-03ND
2019-09-03ND