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Biofiltration Swale Project: Firm : Date : No. YES N/A Deviation Requested Montana Post-Construction Storm Water BMP Design Guidance Manual - Biofiltration Swale 5.6.1 Description 5.6.2 Performance 5.6.3 Site selection 5.6.4.1 Runoff treatment design flow rate 5.6.4.2 Biofiltration swale geometry 5.6.4.3 Select soil and vegetation cover 5.6.4.4 Design flow depth 5.6.4.5 Bottom width 5.6.4.6 Design velocity 5.6.4.7 Swale length and hydraulic residence time 5.6.4.8 Maintenance access 5.6.4.9 Additional considerations 5.6.5 Vegetation considerations 5.6.6 Construction considerations 5.6.7 Maintenance 5.6.8 Plan view and typical details 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. 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.