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<br />INDEX TO TABLES
<br />
<br />Table No,
<br />
<br />Page No.
<br />
<br />Survey of Studies Made and Action Taken by Local Jurisdictions in
<br />Requiring and Regulating On-Site Stonnwater Detention Facilities ...., 13
<br />2 Existence of Controls by Local Jurisdictions for On-Site Stonnwater Detention
<br />Requirements .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
<br />3 Responsibility for Administering Controls ., . , . . . , . . . , . . . . . 14
<br />4 Apparent Adverse Factors of On-Site Detention .............. .. 19
<br />5 Cost Allocation of On-Site Detention Facilities when Required by Local Jurisdictions 22
<br />6 Number of Detention Facilities Designed by Engineering Finns ., . . 32
<br />7 Incorporation of Detention into Drainage System Planning .... . . 32
<br />8 Method of Predicting Runoff for Design of On-Site Detention Facilities 33
<br />9 Control Methods for Gravity Release .............. 34
<br />10 Adverse Effects of On-Site Detention Facilities as Seen by Engineers. , 34
<br />II Rate of Runoff and Carrying Capacity . . . . , . . . . . , . . . . . 36
<br />12 Hydraulic Characteristics of Roof Drain Detention Rings . . . . . . . 40
<br />13 Recommended Antecedent Precipitation Factors for the Rational Fonnula 55
<br />14 Calculation of Required Storage Volume ............. 60
<br />15 Specified Values of Coefficient Runoff ....,........... 64
<br />16 Comparison of Hydrographic Data for Storms of Various Frequencies . . 81
<br />17 Watershed Areas "Highlands West" Retention Ponds, Hoffman Estates, Illinois 84
<br />18 Details of Retention Pond Design "Highlands West" Hoffman Estates, Illinois 84
<br />19 Comparison of Estimated Costs Indian Lakes Estate. 86
<br />20 Number of Detention Facilities . . , . . . . . . , . 88
<br />21 Design of Detention Facilities . . . . . . . . . . . . 89
<br />22 Maximum Release Rates - Runoff and Ponding Depth 93 .
<br />23 Settling Velocities of Selected Particles ..'.... . .116
<br />24 Minimum Sediment Basin Area Requirements for Selected Particles (l cfs outflow rate) 116
<br />25 Typical Sediment Sample Analysis . ,116
<br />26 On.Site Stormwater Management Methods . , . . . . . , . . . . . . , . . . . . . 122
<br />27 Comparison of Alternatives , . . . . , . . . . . . , . . . , . . . . . . . . . , . 127
<br />28 Capital Cost Comparison . . . . . . . . . . . . . . . . . . , . . . . . . . . . . 131
<br />29 Survey of Programs to Remove Roof Drain (and/or Foundation Drain) Connections to
<br />Sanitary Sewers ...,., . . . . . . . . . . . . . .132
<br />30 Comparison Between Mail Survey and Physical Inspection . 133
<br />31 Details of Five Spreading Basins, Los Angeles ,..., . 144
<br />32 Probable Required Treatment Processes . . . . , . . . . 149
<br />33 Chemical Analysis (ppm) of Water from Gravel-Surfaced Plastic Catchments .149
<br />34 Water Analysis from Catchment Areas (in ppm) Texas A & M Experiments . .150
<br />35 Cost Comparisons of Porous and Conventional Pavements. . . . . . . . . .152
<br />36 Storage Capacities of Porous Pavements ., . . . . . . . . . . . . . ., ., 153
<br />37 Rankings by Participant Category, Regional Stonn and Flood Water Planning Conference,
<br />March 10, 1973, NIPC Study . . . . . . . . . . . . . , . . . . . . . . . '. . 178
<br />38 Specific Recommendations, Regional Stonn and Flood Water Planning Conference,
<br />March 10, 1973, NIPC . . . . . . . . , . . . . . . . . . . . . , . .179
<br />39 Estimated Costs of Alternative Methods - for the Boston Regional Area . . .. . 187
<br />40 Comparison of Wet Weather Cost vs Accomplishments .........,.. .216
<br />41 Program Costs (1974, Million Dollars) for Combined Dry-Wet Weather Programs .217
<br />42 Comprehensive Wastewater Management Program -
<br />Facilities, Costs and Funds Required ,. . . . . . . . . . . . . . . . , . .. .218
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