What is Chromium?
Chromium is a naturally occurring element. It is the 21st most abundant element in the earth's crust.
Does Kitsap PUD test drinking water for the presence of Chromium?
Yes. Chromium is regulated under the Safe Drinking Water Act and all Group A Public Water Systems (those with 15 connections or more) are required to test periodically for the presence of Chromium.
What level of Chromium is allowed under the Safe Drinking Water Act?
The Safe Drinking Water Act sets a Maximum Contaminant Level (MCL) for Chromium at 100 parts per billion. Laboratories are required to test for Chromium down to 7 parts per billion. To date, no sample taken by KPUD has tested above 7 parts per billion.
What is Chromium 6?
Chromium 6 is a variant of Chromium. It is naturally occurring and also the product of industrial processes. In the movie Erin Brockovich, Chromium 6 was one contaminant associated with a case of groundwater contamination in California. In that instance Chromium 6 was detected at around 500 parts per billion.
Why was Chromium 6 recently in the news?
As part of its ongoing oversight of the nation's drinking water, the US Environmental Protection Agency conducts periodic screening of "unregulated contaminants". Between 2013 and 2015 water systems across the country screened for a variety of unregulated contaminants, including Chromium 6. With this screening, labs were required to test for Chromium 6 down to 0.03 parts per billion. With this lower screening level, Chromium 6 was detected in the vast majority of samples submitted.
At what level was Chromium 6 detected in KPUD's system?
KPUD's North Peninsula Water System participated in Unregulated Contaminant Monitoring in 2014 and 2015. Chromium 6 was detected at an average level of 1.2 parts per billion.
Where can I find more information on Chromium?
Washington State Department of Health has posted information here:
The US EPA has posted information here:
Board Meetings are held every 2nd and 4th Tuesday of the month at 9:30am. The meetings are held at our offices and are open to the public. For Minutes and Agendas from previous Board Meetings, visit our Archives
We need to hear from you!
Click here to Fill out our survey
- Treat EVERYONE with Dignity, Respect
- Serve EVERYONE with Integrity
- Be Committed to Community Responsibility
- Always Challenge the Status Quo
- Model and Practice Continuous Learning