Dog Poisoning

Does anybody have contact info for the Walgreens on Mt. Vernon construction company? They placed rat poison in the locked parking lot and some of it  made its way into our yard. One of our dogs ate some poison, we have a piece of it we took to the vet. There is also a trap with the same poison next to our fence. I want to contact the owner but there is no contact info available at the construction site. Can anyone help? Thanks.