Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Sammamish Plateau Water and Sewer

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

 

26

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20150.109 ppb2614ND - 0.580 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021N/A00N/A
2022N/A00N/A
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2015-03-3015041004-0040.0430 ppb
2015-03-3035181633003AM0.0830 ppb
2015-03-3035181633001AM0.270 ppb
2015-03-3015041004-0020.244 ppb
2015-03-3015041004-0010.0408 ppb
2015-03-3015041004-003ND
2015-03-3035181633005AM0.570 ppb
2015-03-3035181633007AMND
2015-03-3115041009-001ND
2015-03-3115041009-004ND
2015-03-3115041009-005ND
2015-03-3115041009-006ND
2015-03-3115041009-002ND
2015-03-3115041009-003ND
2015-09-0335205946007AMND
2015-09-0335205946001AM0.370 ppb
2015-09-0335205946003AM0.110 ppb
2015-09-0335205946009AM0.0780 ppb
2015-09-0335205946013AM0.140 ppb
2015-09-0335205946019AM0.1000 ppb
2015-09-0335205946011AM0.0980 ppb
2015-09-0335205946015AM0.110 ppb
2015-09-0335205946017AMND
2015-09-0335205946005AM0.580 ppb
2015-09-3035209763003AMND
2015-09-3035209763001AMND