Currently, the city of Davis is concerned about trace amounts of hexavalent chromium naturally found here in our drinking well water. Although high levels of inhaled hexavalent chromium in the foundry and smelting industries can lead to lung cancer, in the naturally slightly acidic human stomach, hexavalent chromium is instantly converted to trivalent chromium, a nutrient.
In addition, the Environmental Protection Agency uses a faulty linear model of cancer induction that seriously exaggerates cancer induction risk.
Otto G. Raabe
Davis