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EXHIBIT A-2 Page 1 of 8 During final design review, limited sediment sampling and priority pollutant testing as required by the Regional Water Quality Control Board would be conducted. The test results w ill be provided to the Corps and Regional Water Quality Control Board for review at least 30 days prior to any planned excavation. Contract specifications will include dust prevention measures such as watering of dry material (e.e., dried dredge material) as necessary to reduce temporary air quality impacts. Construction hours will be limited to 7:00 a.m. to 7:00 p.m. on weekdays except under unusual circumstances. An example of an unusual circumstance might be the need to place erosion control materials in advance of a significant but unanticipated storm front. Reduce impacts to users of the Shoreline Trail by: 1) maintaining access along the trail whenever possible and when safety concerns permit; and 2) postine signs notifying the public of the possible inconveniences and forecasting the possible delays/closures along the trail. Avoid potential inadvertent damage or rupture to the underground pipelines and manholes in the project area by mapping and flagging the location of each pipeline and manhole prior to project construction initiation. Avoid channel excavation activities in the San Lorenzo Creek mouth mudflat between Ma-, and .August 31 to eliminate any potential adverse effects on California least tern foraging or roosting. Minimize impacts to land nesting birds such as the burrowing owl, killdeer and salt marsh song sparrow by restricting construction activities to the extent possible in nesting habitats from February to July. Minimize impacts to nesting habitat of the black -necked stilt by flagging and thus avoiding to the extent possible, during project construction, the small vegetated islands in Roberts Landing Slough during the breeding season (i.e., from May to July). - A qualified biologist will regularl\ monitor all construction activities. In the unlikely event that cultural resources are discovered during excavation activities. land alteration work in the general vicinity of the find should be halted immediately and a qualified archaeologist consulted. The archaeologist would determine whether deposits warrant further investigation or continuation of construction activities is appropriate. Notify construction workers that abandoned wells may be present in the study area and to take all necessary precautions. POST -CONSTRUCTION MITIGATION AND MONITORING Monitoring, management and maintenance would be carried out for at least five years (or until the Corps determines that success criteria have been met) following WCDP implementation in order to assess restoration progress and %erify satisfaction of enhancement objectives. Monitoring reports would be prepared and submitted to the Corps of Engineers annually.