We have created this guide to help get you started with some of the most crucial items to include in your dog walking contract. The animals listed below are currently at the Martinez shelter and recommended for transfer to a rescue group (aka transfer partner).Dog Walking Volunteers provide both mental and physical enrichment for our shelter animals. DOG WALKING INFORMATION SHEET: Please fill out one form for each dog so that we may provide the best care possible. Six dogs at a time is the maximum number allowable to walk in the Regional Parks. Welcome to the Housing Authority of the County of Contra Costa.