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Page 4 <br />Volatile Organic Chemicals <br />(VOCs) <br />California U.S. EPA <br />MCL MCL Effective <br />Date DLR PHG PHG <br />Date MCL MCL Effective <br />Date MCLG <br />1,2,4-Trichlorobenzene 5 <br />70 <br />2003-06-12 <br />1994-09-08 <br />0.5 5 1999 70 1994-01-17 70 <br />1,1,1-Trichloroethane <br />(1,1,1-TCA) <br />200 1989-02-25 0.5 1000 2006 200 1989-01-09 200 <br />1,1,2-Trichloroethane <br />(1,1,2-TCA) <br />5 <br />32 <br />1994-09-08 <br />1989-04-05 <br />0.5 0.3 2006 5 1994-01-17 3 <br />Trichloroethylene (TCE) 5 1989-02-25 0.5 1.7 2009 5 1989-01-09 zero <br />Trichlorofluoromethane <br />(Freon 11) <br />150 1990-06-24 5 1,300 2014 ------ <br />1,1,2-Trichloro-1,2,2- <br />Trifluoroethane (Freon 113) <br />1,200 1990-06-24 10 4,000 1997 ------ <br />Vinyl chloride 0.5 1989-04-05 0.5 0.05 2000 2 1989-01-09 zero <br />Xylenes 1,750 1989-02-25 0.5 1,800 1997 10,000 1992-07-30 10,000 <br />Synthetic Organic Chemicals (SOCs) <br />The information in the following table can be found in 22 CCR §64444 (California MCLs), 22 CCR §64445.1 (California DLRs), <br />OEHHA’s website (California PHGs), 40 CFR §141.61 (U.S. EPA MCLs), and 40 CFR §141.50 (U.S. EPA MCLGs). The values <br />in this table are in units of micrograms per liter (µg/L). <br />Synthetic Organic <br />Chemicals <br />(SOCs) <br />California U.S. EPA <br />MCL MCL Effective <br />Date DLR PHG PHG <br />Date MCL MCL Effective <br />Date MCLG <br />Alachlor 2 1994-09-08 1 4 1997 2 1992-07-30 zero <br />Atrazine 1 <br />3 <br />2003-06-12 <br />1989-04-05 <br />0.5 0.15 1999 3 1992-07-30 3 <br />Bentazon 18 1989-04-05 2 200 1999 ------ <br />Benzo(a)pyrene 0.2 1994-09-08 0.1 0.007 2010 0.2 1994-01-17 zero <br />Carbofuran 18 1990-06-24 5 0.7 2016 40 1992-07-30 40 <br />Chlordane 0.1 1990-06-24 0.1 0.03 1997 2 1992-07-30 zero <br />9.B. - Page 20 of 27 <br />209