text: The Environmental Quality Standards Relating to "Human Health Items"\nItem Standard\nCd (cadmium) 0.01mg/L or less\nCN (cyanogen) ND\nPb (lead) 0.01mg/L or less\nCr6+ (hexavalent chromium ) 0.05mg/L or less\nAs (arsenic) 0.01mg/L or less\nT-Hg (total mercury) 0.0005mg/L or less\nAlkyl Hg (alkyl mercury) ND\nPCB (polychlorinated biphenyl) ND\nCH2Cl2 (dichloromethane) 0.02mg/L or less\nCCl4 (carbon tetrachloride) 0.002mg/L or less\n1,2-C2H4Cl2 (1,2-dichloroethane) 0.004mg/L or less\n1,1-C2H2Cl2 (1,1-dichloroethylene) 0.02mg/L or less\ncis-1,2-C2H2Cl2 (cis-1,2-dichloroethylene) 0.04mg/L or less\n1,1,1-C2H3Cl3 (1,1,1-trichloroethane) 1mg/L or less\n1,1,2-C2H3Cl3 (1,1,2-trichloroethane) 0.006mg/L or less\nC2HCl3 (trichloroethylene) 0.03mg/L or less\nC2Cl4 (tetrachloroethylene) 0.01mg/L or less\n1,3-C3H6Cl2 (1,3-dichloropropane) 0.002mg/L or less\n-R2NCS (thiuram) 0.006mg/L or less\nSimazine (2-chloro-4,6-bis-1,3,5-triazine) 0.003mg/L or less\nBenthiocarb\n(S-4-chlorobenzyl diethylthiocarbamate) 0.02mg/L or less\nBenzene 0.01mg/L or less\nSe (selenium) 0.01mg/L or less\n\nThat's all I can find.\n\nhttp://www.pref.shiga.jp/biwako/koai/english/eng_top.htm