I just moved me and my hens to a new house/coop. One of my new neighbors raised concerns with me and my partner about having (legal and within the city code) chickens and the coop. She is worried that my three hens will infect her yard with salmonella. My new coop is 20 feet from her yard, is on a concrete slab, and I keep my coop clean. I am trying to find information to provide to her to calm her fears about any bacteria getting into her yard (through "rain runoff"). She has already called the city to complain (the day I moved the chickens in) and the city came out, inspected, and told her I was all legal and within code, but she is still complaining over the fence. Any suggestions?