My response to the Editor follows...
I am afraid that your reporters have made a couple of grave mistakes in this story. First, the facts they refer to [EPA's thesis on Cr(VI)] are not correct and secondly the cancer cases is not a reliable index to conclude if Brockovich was right or not.
Cr(VI) is highly toxic! It causes cancer, mutations and under REACH it is classified in the group of the most toxic compounds. So, there is not doubt that it is harmful even in drinking water!
In Greece, we have a similar case to Hinkley, in Asopos where Cr(VI) has been detected in drinking water and underground waters. Sadly, Cr(VI) may pass as Cr(III) to food tubers grown there (see relevant presentation of our group in an international conference last September, http://www.zabetakis.net/files/images/aacd_zabetakis_final.ppt )
Therefore, the question today is NOT whether Cr(VI) is carcinogenic or not but for the states and EU to pluck up the courage and vote for new legislation with stricter limits for Cr(VI) in water.
Senior Lecturer of Food Chemistry
University of Athens
Cr(VI) in water and the Public Health