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The City of Portland, Oregon

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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Suite 1000, Portland, OR 97204

Appendix C

Appendix C1

Santa Barbara Urban Hydrograph Method

Appendix C2

Simplified Approach Sizing Calculations

Appendix C3: Presumptive Approach Calculator (PAC) User's Manual

Updated May 2010

Appendix C3: PAC Stormwater Narrative Form

Appendix C3: Presumptive Approach Calculator (PAC)

Updated May 2010