A little too little a little too late. Making this a non-enforceable standard does nothing to insure that the containment is removed from California's drinking water supply when it reaches levels over the established Maximum Contaminant Level (MCL) for hexavalent Chromium or Chromium 6. .02ppb is the same as saying .02 mg/l. For instance Water at 1ppm (weight per volume)= 1 mg/L. Generally in water quality compliance and enforcement there tends to be more of a reference to mg/l than ppb. If one were to say have an enforceable standard such as the one that applies to Arsenic; then government agencies could then force water systems serving water in exceedence of the MCL to either adopt treatment or face penalties. Further, systems that operate out of compliance would also be subject to either administrative Orders issued by the environmental agency enforcing or by the Court system, which would issue a Consent Decree and/or Judgement. In any event, these tools can be used by State or Federal officials to take steps towards protecting human health and the environment from contaminants that shorten the life span we would otherwise be entitled to experience if we were free of toxic environmental contaminants with known adverse health effects.
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