Drawdown water quality11/21/2023 Triton Stormwater Solutions Chamber System.We acknowledge there are many more of these devices and reference to any specific commercial product, process, or service by trade name, trademark, service mark, manufacturer, or otherwise does not constitute or imply endorsement, recommendation, or favoring by the Minnesota Pollution Control Agency. We therefore include links to examples of commonly used devices. Details for underground systems: Underground systems are proprietary devices.Infiltration trench section: File:INFILTRATION TRENCH INFILTRATION TRENCH SECTION (1).pdf.Infiltration subsurface layout: File:Infiltration Subsurface Layout2 (1).pdf.Infiltration basin plan and profile: File:Infiltration Basin INFILTRATION BASIN PLAN & PROFILE (1).pdf.CADD dwg file for infiltration basin plan and profile. ![]() RECOMMENDED - Indicates guidance or other information that is helpful but not critical. HIGHLY RECOMMENDED - Indicates guidance or other information that is extremely beneficial or necessary, but not specifically required by the MPCA CGP. REQUIRED - Indicates standards stipulated by the CGP or other consistently applicable regulations. Warning: REQUIRED - Indicates requirements stipulated by the MPCA Construction General Permit (CGP) or other consistently applicable regulations The following terminology is used throughout this page. Link here for requirements of the Construction Stormwater General Permit for infiltration systems Prepare Operation and Maintenance (O&M) Plan Check volume, peak discharge rates and drawdown time against State, local and watershed organization requirements Determine pretreatment volume and design pretreatment measures Size outlet structure and/or flow diversion structure, if needed
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