HI SB2471

Requires the director of health to set a maximum contaminant level for hexavalent chromium at 0.06 parts per billion in drinking water.

Amends Hawaii Revised Statutes Section 340E-2 to explicitly list categories of maximum contaminant levels for inorganic chemicals (including hexavalent chromium), organic chemicals, disinfection byproducts, turbidity, microbiological contaminants, radionuclides, and residual disinfectant levels.

Clarifies that state primary drinking water regulations may be more stringent than national regulations if the director of health determines stricter standards are necessary to protect public health.

Responds to December 2010 Environmental Working Group study finding hexavalent chromium present in drinking water from 31 of 35 cities tested, with highest levels in Honolulu, Hawaii.

Takes effect upon approval.