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Infiltration Basins Project: Firm : Date : No. YES N/A Deviation Requested Montana Post-Construction Storm Water BMP Design Guidance Manual - Infiltration Basins 5.2.1 Description 5.2.2 Performance 5.2.3 Site selection 5.2.4.1 Infiltration Cell Volume 5.2.4.2 Inlet and conveyance 5.2.4.3 Pretreatment forebay 5.2.4.4 Infiltration cell shape 5.2.4.5 Infiltration cell bottom 5.2.4.6 Outlet structure (not optional) 5.2.4.7 Embankment and overflow spillway 5.2.4.8 Maintenance access 5.2.4.9 Flood control 5.2.5 Vegetation considerations 5.2.6 Construction considerations 5.2.7 Maintenance 5.2.8 Subsurface infiltation considerations 5.2.9 Plan view and typical details Deviation requests noted on this form shall be submitted for review and approval in accordance with Section 3.3 of the Design and Construction Standards. Deviations not individually approved, even if shown in the approved plans, specifications, or reports, are not approved. Section references on this sheet are to the Montana Post-Construction Storm Water BMP Design Guidance Manual. Please also refer to section 7.1.4.B of the CK Standards for CK modifications to the BMP Manual.