CFR /  Title 40  /  Part 141  /  Sec. 141.54 Maximum residual disinfectant level goals for

MRDLGs for disinfectants are as follows: ------------------------------------------------------------------------

Disinfectant residual MRDLG(mg/L)------------------------------------------------------------------------Chlorine................................ 4 (as Cl 2).Chloramines............................. 4 (as Cl 2).Chlorine dioxide........................ 0.8 (as ClO2)------------------------------------------------------------------------ [63 FR 69465, Dec. 16, 1998]