Thus, Mitigation Measure 4.C-2c is revised to read as follows:
Mitigation Measure 4.C-2c: Where disturbance to sensitive natural communities cannot be avoided, compensation shall be provided for temporary impacts and permanent loss to ensure that there is no overall loss of sensitive natural communities as a result of Project Site development. Onsite, in kind replacement of sensitive natural communities including coastal scrub, willow scrub, tidal marsh, freshwater emergent wetlands, and lined manmade drainages that have developed bed and bank characteristics shall be a condition of development. Compensation shall be detailed on an impact-specific basis and shall include development of an onsite wetland mitigation and monitoring plan, which shall be developed prior to Project Site 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:
aA summary of findings for the most recent wetland delineation conducted at the Project Site; and- A review of the wetland area identified in the Final EIR for the Brisbane Baylands, which is representative of a 20-year average of wet and dry conditions within the Baylands. For purposes of this mitigation measure, the amount of wetlands impact that must be mitigated will be determined by either a 404 delineation wetland, or the wetland area identified in the Brisbane Baylands Final EIR, whichever is greater.
- 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
7090 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.