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PERMIT NO. 6-94 (Issued <Dn July 24, 1996, As Amended Through March 4, 2010) AMENDMENT NO. SIX (Exclusive of Amendment No. Four) City of Redwood City and Keech Properties, LLC Page 13 I I, & vegetation process and assure its long term viability, the permittee shall: place geo- cells along the bayward slope of the levee; salvage all pickleweed and saltgrass from the work area and replant these reserved plants following completion of construction; and spread a native grass seed mix with a biodegradable stabilizer emulsion from the high tide line up to the top of the levee (Amendment No. Six). 2. Marsh MonitorinCl Report. The permittee shall submit annual monitoring reports evaluating the success of the site's recovery until at least 75% of the restored site is revegetated with native wetland vegetation and no nonnative plant species occur. The monitoring report shall include an assessment of, the rate of re-vegetation and plant coverage within the impacted marsh and upland buffer areas, a list of the top five plant species and their relative percentage of the plant community's vegetation, and any exotic or non-native plant species. Should adverse conditions be identified during the five-year monitoring period, the permittees shall take corrective action as specified by or on behalf of the Commission (Amendment No. Six). ~ Marsh and Upland Protection. The work authorized by this amended permit shall be performed in a manner that will prevent any significant adverse impact on any tidal marsh, other sensitive wetland resources and existing upland vegetation. The permittee shall also employ best management practices, such as installing a fiber roll and silt fence along the bayward edge of the levee, one-foot landward of the high tide line, to assure that material will not erode into the Bay shortly after placement. The fiber roll and silt fence must be removed within 60 days of project completion. If any unforeseen adverse impacts occur to any such areas as a result of the activities authorized herein, the permittee shall restore the area to its previous condition, including returning the disturbed area to its original elevation and soil composition and, if the area does not re-vegetate to its former condition within one year, the permittee shall seed all disturbed areas with appropriate local and native marsh vegetation after receiving approval of a restoration plan by or on behalf of the Commission pursuant to Special Condition II-A. Such restoration plan bust be implemented within two years of the initial disturbance. The permittees shall employ mitigation measures to minimize impacts to wetland areas, such as: (1) minimizing all traffic in marsh/ mudflat areas; (2) confining work to the top and landward slope of the exiting levees wherever possible; (3) carefully removing, storing, and replacing wetland vegetation that has been removed or "peeled back" from construction areas as soon as possible following construction; (4) confining all heavy mechanical equipment to the levee and not within tidal wetlands; (5) removing tidal and upland marsh vegetation to bare ground or stubble no higher than I-inch by hand; and (6) implementing state water quality Best Management Practices. E. Protection of Special Status Animal Species. The permittee shall avoid adverse impacts to the California clapper rail and the salt marsh harvest mouse by employing the mitigation measures outlined in its application to amend the permit and subsequent submittals, and the u.s. Fish and Wildlife Service's (USFWS) Biological Opinion. These measures include but are not limited to: