Volume 2-05, Chapter 3 - City of Wichita
Volume 2-05, Chapter 3 - City of Wichita Volume 2-05, Chapter 3 - City of Wichita
Section 3.3.3 - Alum Treatment Figure 3-45 Alum Treatment System and Injectionn Equipment Page 3 - 160 Volume 2, Technical Guidance
Section 3.3.4 - Underground Sand Filter 3.3.4 Underground Sand Filter Secondary Water Quality Facility Description: The underground sand filter is a design variation of the surface sand filter, where the sand filter chambers and media are located in an underground vault. KEY CONSIDERATIONS DESIGN CRITERIA: • Maximum contributing drainage area of 2 acres • Typically requires 2 to 6 feet of head • Precast concrete shells available, which decrease construction costs • Underdrain required ADVANTAGES / BENEFITS: • High pollutant removal • Applicable to small drainage areas • Good for highly impervious areas • Good retrofit capability DISADVANTAGES / LIMITATIONS: • High maintenance burden • Not recommended for areas with high sediment content in stormwater or clay/silt runoff areas • Cannot be installed until site construction is complete • Possible odor problems MAINTENANCE REQUIREMENTS: • Inspect for clogging – rake first inch of sand • Remove sediment from forebay/chamber • Replace sand filter media as needed H M M M POLLUTANT REMOVAL Total Suspended Solids Nutrients – Total Phosphorus & Total Metals – Cadmium, Copper, Lead & Zinc Pathogens – Coliform, Streptococci & E. Coli STORMWATER MANAGEMENT SUITABILITY Water Quality Protection Channel Protection On-Site Flood Control Downstream Flood Accepts Hotspot Runoff: Yes IMPLEMENTATION CONSIDERATIONS L H H Land Requirements Relative Capital Costs Maintenance Burden Residential Subdivision Use: No High Density/Ultra-Urban: Yes Drainage Area: 2 acres maximum Soils: Not recommended for clay/silt drainage areas that are not stabilized Other Considerations: • Typically needs to be combined with other controls to provide water quantity control L=Low M=Moderate H=High Volume 2, Technical Guidance Page 3 - 161
- Page 115 and 116: Section 3.2.8 - Surface Sand Filter
- Page 117 and 118: Section 3.2.9 - Bioretention Areas
- Page 119 and 120: Section 3.2.9 - Bioretention Areas
- Page 121 and 122: Section 3.2.9 - Bioretention Areas
- Page 123 and 124: Section 3.2.9 - Bioretention Areas
- Page 125 and 126: Section 3.2.9 - Bioretention Areas
- Page 127 and 128: Section 3.2.9 - Bioretention Areas
- Page 129 and 130: Section 3.2.9 - Bioretention Areas
- Page 131 and 132: Section 3.2.9 - Bioretention Areas
- Page 133 and 134: Section 3.2.10 - Stormwater Wetland
- Page 135 and 136: Section 3.2.10 - Stormwater Wetland
- Page 137 and 138: Section 3.2.10 - Stormwater Wetland
- Page 139 and 140: Section 3.2.10 - Stormwater Wetland
- Page 141 and 142: Section 3.2.10 - Stormwater Wetland
- Page 143 and 144: Section 3.2.10 - Stormwater Wetland
- Page 145 and 146: Section 3.2.10 - Stormwater Wetland
- Page 147 and 148: Section 3.2.10 - Stormwater Wetland
- Page 149 and 150: Section 3.2.10 - Stormwater Wetland
- Page 151 and 152: Section 3.3 - Secondary TSS Treatme
- Page 153 and 154: Section 3.3.1 - Proprietary Treatme
- Page 155 and 156: Section 3.3.1 - Proprietary Treatme
- Page 157 and 158: Section 3.3.2 - Gravity (Oil-Water)
- Page 159 and 160: Section 3.3.2 - Gravity (Oil-Water)
- Page 161 and 162: Section 3.3.2 - Gravity (Oil-Water)
- Page 163 and 164: Section 3.3.3 - Alum Treatment 3.3.
- Page 165: Section 3.3.3 - Alum Treatment •
- Page 169 and 170: Section 3.3.4 - Underground Sand Fi
- Page 171 and 172: Section 3.3.4 - Underground Sand Fi
- Page 173 and 174: Section 3.3.4 - Underground Sand Fi
- Page 175 and 176: Section 3.3.4 - Underground Sand Fi
- Page 177 and 178: Section 3.3.4 - Underground Sand Fi
- Page 179 and 180: Section 3.3.4 - Underground Sand Fi
- Page 181 and 182: Section 3.3.5 - Organic Filter 3.3.
- Page 183 and 184: Section 3.3.5 - Organic Filter •
- Page 185 and 186: Section 3.4 - Other Stormwater Mana
- Page 187 and 188: Section 3.4.1 - Conventional Dry De
- Page 189 and 190: Section 3.4.1 - Conventional Dry De
- Page 191 and 192: Section 3.4.1 - Conventional Dry De
- Page 193 and 194: Section 3.4.2 - Underground Dry Det
- Page 195 and 196: Section 3.4.2 - Underground Dry Det
- Page 197 and 198: Section 3.4.2 - Underground Dry Det
- Page 199 and 200: Section 3.4.3 - Porous Pavement 3.4
- Page 201 and 202: Section 3.4.3 - Porous Pavement The
- Page 203 and 204: Section 3.4.3 - Porous Pavement com
- Page 205 and 206: Section 3.4.3 - Porous Pavement Fig
- Page 207 and 208: Section 3.4.4 - Modular Porous Pave
- Page 209 and 210: Section 3.4.4 - Modular Porous Pave
- Page 211 and 212: Section 3.4.4 - Modular Porous Pave
- Page 213 and 214: Section 3.4.5 - Green Roof 3.4.5 Gr
- Page 215 and 216: Section 3.4.5 - Green Roof Signific
Section 3.3.3 - Alum<br />
Treatment<br />
Figure 3-45 Alum Treatment System and Injectionn Equipment<br />
Page 3 - 160<br />
<strong>Volume</strong> 2, Technical Guidance
Change language