Mitigation Credit Calculator

Draft Credit Determination Form for Mitigation Banks or In-Lieu-Fee Projects

INSTRUCTIONS: This accounting worksheet is used to estimate credits for a mitigation bank or in-lieu fee project. Final credits and requirements will be determined by the agency. Credits are based on (1) the mitigation method, (2) function temporal loss factors, and (3) requied buffers. Enter data in boxes in cyan table cells only. Boxes in yellow table cells will populate automatically. A separate column must be used for each mitigation method used (e.g. if a mitigation site includes both restoration and enhancement, the mitigation method for those distinct areas must be calculated in separate columns). A separate column may also be used to allow different function temporal loss factors to be applied to different acreages, even if the mitigation method being used on that acreage is the same.

Mitigation Credit Calculator
Factor		Notes
Mitigation method	What method(s) of mitigation are proposed? Select an option from drop-down list.	Use multiple methods if more than one ratio applies. Credits for preservation are case-by-case, as determined by the Department and may be adjusted.

Functional temporal loss (increase factor)	Which soil factor, if any will cause temporal loss of function? Select first applicable option from drop-down list.	Soil adjustment factors are not generally applicable to removal of historic fill, or mitigation through preservation.

	Adjusted mitigation ratio (acres per credit).
	Applicable site acreage
	Potential mitigation credits
Potential mitigation credits without buffers
Credit for Buffers	Buffer acreage	Use multiple methods if more than one ratio applies
	Buffer credit ratio	DSL will determine the credit ratio for required buffers. Enter the acres of buffer required per credit (e.g. for 10:1, enter 10)
	Buffer Credit
	Potential Mitigation Credits With Buffer Credits

Author: John Marshall

NOTE: This web application uses the same arithmetic and logic to provide mitigation bank and in-lieu-fee credit estimates used in the Oregon Department of State Lands (ODSL) Excel spreadsheet provided in the hyperlink above the one you used to access this web page. The only difference is that on the dropdown selection for mitigation type in this application a credit / acres ratio of 1.5:1 for creation is used instead of 1:1 as used in the ODSL spreadsheet. The former ratio of 1.5:1 is what has been used by most of the mitigation banks in Oregon up until recently. However, the user is not required to use the default dropdown values and can insert any value desired as a substitute. While using the defaults provided by ODSL will more likely result in a similar conclusion on the credits eligible for authorization and release as the agency, ODSL also reserves discretionary authority to alter the defaults. Therefore calculators such as these should only be considered as credit estimators of a given bank's authorized credit allotment.

Modified DSL Mitigation Accounting Workbook

Modified DSL Mitigation Bank Eligibility Workbook

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