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 3.3.1 - Proprietary Treatment Systems This page intentionally left blank. Page 3 - 150 Volume 2, Technical Guidance
Section 3.3.2 - Gravity (Oil-Water) Separator 3.3.2 Gravity (Oil-Water) Separator Secondary Water Quality Facility Description: Hydrodynamic separation device designed to remove settleable solids, oil and grease, debris, and floatables from stormwater runoff through gravitational settling and trapping of pollutants. KEY CONSIDERATIONS DESIGN CRITERIA: • Intended for hotspot, space-limited, or pretreatment applications • Intended for the removal of settleable solids (grit and sediment) and floatable matter, including oil and grease • Performance dependent on design and frequency of inspection and cleanout of unit STORMWATER MANAGEMENT SUITABILITY Water Quality Protection Channel Protection On-Site Flood Control Downstream Flood Control DISADVANTAGES / LIMITATIONS: • Usually cannot alone achieve the 80% TSS removal target • Limited performance data • Dissolved pollutants are not effectively removed MAINTENANCE REQUIREMENTS: • Frequent maintenance required IMPLEMENTATION CONSIDERATIONS L Land Requirements H Relative Capital Costs H Maintenance Burden Varies Varies No Data No Data POLLUTANT REMOVAL Total Suspended Solids Nutrients – Total Phosphorus & Total Nitrogen Metals – Cadmium, Copper, Lead & Zinc Pathogens – Coliform, Streptococci & E. Coli Residential Subdivision Use: No High Density/Ultra-Urban: Yes Drainage Area: 1 acres max. Soils: No restrictions Other Considerations: • Hotspot areas • Pretreatment L=Low M=Moderate H=High Volume 2, Technical Guidance Page 3 - 151
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- Page 117 and 118: Section 3.2.9 - Bioretention Areas
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- Page 133 and 134: Section 3.2.10 - Stormwater Wetland
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- Page 151 and 152: Section 3.3 - Secondary TSS Treatme
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- Page 159 and 160: Section 3.3.2 - Gravity (Oil-Water)
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- Page 163 and 164: Section 3.3.3 - Alum Treatment 3.3.
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- Page 181 and 182: Section 3.3.5 - Organic Filter 3.3.
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- Page 185 and 186: Section 3.4 - Other Stormwater Mana
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Section 3.3.1 - Proprietary Treatment Systems<br />
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<strong>Volume</strong> 2, Technical Guidance
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