mike grizle and bill mclaughlin. first person, come on up. >> one relates to this restrictions on new development in the erosion area. recently the sf zoo has build their own science center atop at the apex at the erosion site. this is areal concern. there's been new blocking for the public and the zoo wants to build their own parking garage. we need help anything you folks can do. thank you. >> commissioner: thank you, next speaker. >> good afternoon, supervisors. i'm with the surf rider chapter and work in a leadership type role. and we'll look at whether it can be relocated as an important >> there's a curiosity about the recycled water plant. we have information about that occurring in the same location as the retreat is going on. >> next speaker, please. >> i'm here on my own behalf. at the community meeting may second of 2017, two issues were brought to staff's attention, one issue is the u.s. geologic survey how san francisco bay is contributing to erosion on the southern portion of the ocean beach and accreti