Pets Eternal Rest is a pet euthanasia service located at 544 Ygnacio Valley Road in downtown Walnut Creek. From their website:
We, including our pets, are sensitive to our environments. Veterinary hospital environments, because they are public and can be busy, can sometimes feel impersonal and rushed. Pets Eternal Rest offers an environmental alternative for you, your family, and pet during the euthanasia process. Our environment is private, quiet, and kindhearted. This environmental choice allows families to gather and spend the time needed to say good bye to a pet that is a beloved family member.
I never realized such a service even existed.