Sammamish Unified Development Code

Environment & Sustainability | Environmentally Critical Areas

vegetation with a density equal to or greater than the pre-altered site conditions.

portions of more than one adjacent drainage basin for specific wetland functions. iv. Implementation of a mitigation bank is subject to City council review and approval.

4. Wetlands – Alternative mitigation

a. Wetland Banking.

b. Fee-in-Lieu Mitigation.

i. Credits from a wetland mitigation bank may be approved for use as compensation for unavoidable impacts to wetlands when:

i. Fee-in-lieu mitigation may be approved for use as compensation for approved impacts to wetlands, when: a) The approved wetland impact is related to the approval of a single-family home, City of Sammamish capital improvement project, or development proposal within the Town Center;

a) Criteria in SDC 21.03.020Y.3.d. are met;

b) The bank is certified under Chapter 173-700 WAC; c) The department determines that the wetland mitigation bank provides appropriate compensation for the authorized impacts; d) The proposed use of credits is consistent with the terms and conditions of the bank’s certification; and e) The compensatory mitigation agreement occurs in advance of authorized impacts. ii. Replacement ratios for projects using bank credits shall be consistent with replacement ratios specified in the bank’s certification. iii. Credits from a certified wetland mitigation bank may be used to compensate for impacts located within the service area specified in the bank’s certification. In some cases, bank service areas may include

b) Criteria in SDC 21.03.020Y.3.d. are met;

c) The fee-in-lieu mitigation program is state certified; d) The department determines that the wetland fee-in-lieu mitigation provides appropriate compensation for the authorized impacts; e) The proposed use of fee-in-lieu mitigation is consistent with the terms and conditions of the fee-in-lieu mitigation program; and f) The compensatory mitigation agreement occurs in advance of authorized impacts. ii. Fee-in-lieu mitigation may be authorized in the City based upon the following order of preference:

104 | Title 21: Sammamish Development Code

Effective | January 1, 2022

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