Significant Impact Being Mitigated |
Mitigation Measure |
Responsibility for Implementation |
Enforcement Responsibility |
Monitoring Responsibility/ Frequency |
Actions Indicating Compliance |
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development or in coordination with permit applications and/or conditions. Alternately, offsite mitigation may be pursued through an approved mitigation bank, although this option may result in a higher ratio for compensation. At a minimum, such plans shall include:
- Baseline information, including a summary of findings for the most recent wetland delineation conducted at the Project Site;
- Anticipated habitat enhancements to be achieved through compensatory actions, including mitigation site location (onsite enhancement or offsite habitat creation) and hydrology;
- Performance and success criteria for wetland creation or enhancement including, but not limited to, the following:
- At least 90 percent survival of installed plants for each of the first three years following planting.
- Performance criteria for vegetation percent cover in Years 1-4 as follows: at least 10 percent cover of installed plants in Year 1; at least 20 percent cover in Year 2; at least 30 percent cover in Year 3; at least 40 percent cover in Year 4; and at least 50 percent cover in Year 5.
- Performance criteria for hydrology in Years 1-5 as follows: 14 or more consecutive days of flooding, ponding, or a water table 12 inches or less below the soil surface during the growing season at a minimum frequency of three of the five monitoring years; OR establishment of a prevalence of wetland obligate plant species.
- Invasive plant species that threaten the success of created or enhanced wetlands should not contribute relative cover greater than 35 percent in Year 1, 20 percent in Years 2 and 3, 15 percent in Year 4, and 10 percent in Year 5.
- If necessary, supplemental water shall be provided by a water truck for the first two years following installation. Any supplemental water
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Engineer shall not issue a permit for grading or other ground disturbing activities until the mitigation has been completed to the satisfaction of the Community Development Director.
The Community Development Director shall retain a qualified biologist to (1) conduct annual monitoring and reporting as to whether habitat restoration and enhancement areas are meeting the performance standards set forth in Mitigation Measure 4.C-1a and (2) conduct a wetland delineation five years after any wetland creation or restoration to determine whether such wetlands are developing according to the success criteria outlined in regulatory permits and Mitigation Measure 4.C-2c. |
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