We have a stream behind our house, less than 15 feet, so collecting and transporting would be easy, as long as its not the middle of summer. If stream is dry, we have a big pond about 75 to 100 feet away. We have a wheelbarrow and gardening wagon we could easily load containers in and bring to the house. We have buckets, pitchers, water bricks, camp water containers, etc that we could collect water in.
For situation 2, stream behind us would be easy to be stealthy. Pond would be tricky. There are no trees or bushes which could be used for cover. But then, it would also be hard for people with ill intent to hide as well. Still, probably best to collect it at night. We have a family size LifeStraw system, some individual LifeStraws, potable water tablets, and of course, there is always boiling.