Frequent Questions

I am interested in the methodology that was relied upon to determine the 500 ppb level for PCBs in drinking water. Specifically how was the MCL calculated? And from what studies and which uncertainty factors were used?

The requested information can be found at the following website:

http://water.epa.gov/lawsregs/rulesregs/regulatingcontaminants/sixyearreview/second_review/upload/Six-Year-Review-2-Health-Effects-Assessment-Summary-Report.pdf.

This information is found on the Six Year 2 Review webpage.

Have more questions? Submit a request