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TABLE 11 - 1 <br /> Chlorine Required to Produce 25 -mg/L Concentration <br /> in 100 ft. of Pipe by Diameter <br /> Pipe 100-Percent 1 -Percent <br /> Diameter Chlorine Chlorine Solution <br /> in. lb. gal . <br /> ----------------------------------------------------------------------------------------------- <br /> 4 0.013 0 . 16 <br /> 6 0.030 0.36 <br /> 8 0.054 0. 65 <br /> 10 0. 085 1 . 02 <br /> 12 0 . 120 1 .44 <br /> 16 0. 217 2 . 60 <br /> END OF SECTION <br /> 02519 — Testing and Disinfecting Water System <br /> 02519 - 3 <br />