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MCLs, DLRs and PHGs for Regulated Drinking Water Contaminants <br /> Last Update: December 31, 2009 <br /> State DLR PHG or Date of <br /> MCL MCLG PHG <br /> Bromate 0.010 0.005 0.0001 2009 <br /> Chlorite 1 0.02 0.05 2009 <br /> Microbiolo ical Contaminants TT =Treatment Techni ue <br /> Coliform % positive samples % 5 (zero) <br /> Cryptosporidium'" TT zero) <br /> Giardia Lamblia TT zero) <br /> Legionella TT (zero) <br /> Viruses TT (zero) <br /> a. A draft CA PHG of 0.0007 mg/L was published in 2009 <br /> b. For informational purposes only--no action needed at this time <br /> c. A draft CA PHG of 0.0005 mglL was published in 2008 <br /> d. A draft CA PHG of 0.000013 mg/L was published in 2009 <br /> e. A draft CA PHG of 1x10-9 mg/L was published in 2007 <br /> <br /> f. Draft CA PHGs for individual trihalomethanes were published in 2009 <br /> OEHHA's review of this chemical during the year indicated (rev200X) resulted in no <br /> <br /> change in the PHG. <br /> Surface water systems only <br /> 75C-12 <br /> <br />