Volume 2-05, Chapter 3 - City of Wichita

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Section 3.2.7 - Soakage Trench 3.2.7.5 Example Schematics Figure 3-27 Schematic of an Example Soakage Trench Installation (Source: City of Eugene, Oregon) Page 3 - 96 Volume 2, Technical Guidance
Section 3.2.8 - Surface Sand Filter 3.2.8 Surface Sand Filter Primary Water Quality Facility Description: Multi-chamber structure designed to treat stormwater runoff throughh filtration, using a sediment forebay, a sand bed as its primary filter media, and an underdrain collection system. KEY CONSIDERATIONS DESIGN CRITERIA: • Typically requires 2 to 6 feet of head • Maximum contributing drainage area of 10 acres surface sand filter • Sand filter media with underdrain system for STORMWATER MANAGEMENT SUITABILITY Water Quality Protection Channel Protection On-Site Flood Control ADVANTAGES / BENEFITS: • 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 conten in stormwater or clay/silt runofff areas • Relatively expensive • Possible odor problems MAINTENANCE REQUIREMENTS: • Inspect for clogging – rake first inch of sand • Remove sediment from forebay/chamber • Replace sand filter media as needed POLLUTANT REMOVAL H Total Suspended Solids M Nutrients – Total Phosphorus & Total Nitrogen Accepts Hotspo Runoff: Yes IMPLEMENTATION CONSIDERATIONS L H H Downstream Flood Control Land Requirements Relative Capital Costs Maintenance Burden Residential Subdivision Use: No High Density/Ultra-Urban: Yes Drainage Area: 2-10 acres max Soils: Clay or silty soils may require pretreatment Other Considerations: • Typically needs to be combined with other controls to provide water quantity control • Hotspot treatment M M Metals – Cadmium, Copper, Lead & Zinc Pathogens – Coliform, Streptococci & E. Coli L=Low M= =Moderate H=High Volume 2, Technical Guidance Page 3 - 97
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CHAPTER 3 STORMWATER CONTROLS TABLE
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Chapter 3 - Table of Contents 3.2.8
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Chapter 3 - Table of Contents LIST
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Section 3.1 - Stormwater Management
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Section 3.2.1 - Stormwater Pond 3.2
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Section 3.2.1 - Stormwater Pond Fig
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Section 3.2.1 - Stormwater Pond For
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Section 3.2.1 - Stormwater Pond •
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Section 3.2.1 - Stormwater Pond 1'
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Section 3.2.1 - Stormwater Pond 3.2
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Section 3.2.1 - Stormwater Pond Ste
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Section 3.2.1 - Stormwater Pond Fig
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Page 53 and 54: Section 3.2.2 - Extended Dry Detent
Page 59 and 60: Section 3.2.3 - Vegetative Filter S
Page 67 and 68: Section 3.2.4 - Grassed Channel 3.2
Page 73 and 74: Section 3.2.4 - Grassed Channel max
Page 75 and 76: Section 3.2.5 - Enhanced Swale 3.2.
Page 77 and 78: Section 3.2.5 - Enhanced Swale Chan
Page 79 and 80: Section 3.2.5 - Enhanced Swale B. G
Page 81 and 82: Section 3.2.5 - Enhanced Swale High
Page 83 and 84: Section 3.2.5 - Enhanced Swale Side
Page 85 and 86: Section 3.2.5 - Enhanced Swale 3.2.
Page 87 and 88: Section 3.2.6 - Infiltration Trench
Page 99 and 100: Section 3.2.7 - Soakage Trench 3.2.
Page 101: Section 3.2.7 - Soakage Trench •
Page 105 and 106: Section 3.2.8 - Surface Sand Filter
Page 117 and 118: Section 3.2.9 - Bioretention Areas
Page 133 and 134: Section 3.2.10 - Stormwater Wetland
Page 151 and 152: Section 3.3 - Secondary TSS Treatme
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Section 3.3.1 - Proprietary Treatme
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Section 3.3.1 - Proprietary Treatme
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Section 3.3.2 - Gravity (Oil-Water)
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Section 3.3.3 - Alum Treatment 3.3.
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Section 3.3.3 - Alum Treatment •
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Section 3.3.4 - Underground Sand Fi
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Section 3.3.5 - Organic Filter 3.3.
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Section 3.3.5 - Organic Filter •
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Section 3.4 - Other Stormwater Mana
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Section 3.4.1 - Conventional Dry De
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Section 3.4.2 - Underground Dry Det
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Section 3.4.3 - Porous Pavement 3.4
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Section 3.4.3 - Porous Pavement The
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Section 3.4.3 - Porous Pavement com
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Section 3.4.3 - Porous Pavement Fig
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Section 3.4.4 - Modular Porous Pave
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Section 3.4.5 - Green Roof 3.4.5 Gr
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Section 3.4.5 - Green Roof Signific
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Section 3.4.5 - Green Roof 3.4.5.3
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Volume 2-05, Chapter 3 - City of Wichita

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