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<br />PAGE <br /> <br />1. Plain Sedimentation. <br /> <br />114 <br /> <br />2. Chemical Coagulation. <br /> <br />115 <br /> <br />",. <br />t' <br /> <br />3. Filtration. <br /> <br />116 <br /> <br />V. Analytical Methods. <br /> <br />117 <br /> <br />STORM WATER POLLUTION RESULTS <br /> <br />A. Precipitation Quality Data. <br /> <br />121 <br />121 <br /> <br />B. Urban Area Runoff Data. . . <br /> <br />121 <br /> <br />1. Stormwater Runoff Concentrations. <br /> <br />123 <br /> <br />2. Impact on Boulder Creek <br /> <br />142 <br /> <br />3. Parameter Loadings. . <br /> <br />146 <br /> <br />C. Suburban Area Runoff Data <br /> <br />148 <br /> <br />1. Concentrations. . . <br /> <br />149 <br /> <br />2. Pollutant Loadings. <br /> <br />159 <br /> <br />D. Mountain Watershed Runoff Data. <br /> <br />159 <br /> <br />E. Agricultural Watershed Runoff <br /> <br />164 <br /> <br />SUMMARY OF RUNOFF POLLUTION STUDIES. . . <br /> <br />166 <br /> <br />TREATABILITY EVALUATIONS OF STORMWATERS. <br /> <br />173 <br /> <br />A. Plain Sedimentation . . <br /> <br />173 <br /> <br />B. Ch~~ical Clarification. <br /> <br />178 <br /> <br />1. Al urn. . . . . . <br /> <br />178 <br /> <br />2. Ferric Chloride <br /> <br />182 <br /> <br />3. Lime. . <br /> <br />187 <br /> <br />. <br /> <br />C. Filtration. <br /> <br />190 <br /> <br />. <br /> <br />D. Process Comparison. <br /> <br />193 <br /> <br />CONCLUSIONS AND RECOMMENDATIONS. <br /> <br />195 <br /> <br />vii <br /> <br />.......- <br />