USACE and its contractor hydroseeded the hillsides a second time during late 2009 with a specially designed seed mix comprised entirely of native species. The contractor also applied a specially-designed surface treatment to areas that are not fully vegetated. This surface treatment includes: (1) mulch, which protects the seeds from heat, helps retain moisture, and guards against erosion; (2) a tackifier, which attaches the seeds to the soil and prevents them from being washed away, and; (3) a compost component, which provides nutrients to the seeds and vegetation. These efforts are producing results, as sprouts have recently begun to appear across the hillsides. CBP is confident this progress will continue as the fall and winter rains arrive.