Revision history [back]
My understanding of the justification for a well head is that it needs to achieve the following
- The platform is raised slightly above the surrounding land so surface water drains away from the well, prevents erosion and muddy depressions forming around the wellhead and provides a good sanitary seal to prevent water flowing directly into the well
- It provides good access to all users including the old, young and disabled
- It protects well head from damage by cattle.
- It allows access to the well for maintenance or deepening
So provided the platform achieves this, there is no rule that says it needs to be circular or a certain size. The dimensions and the design should, I suggest, be driven by the needs of users. A 2m diameter platform provides a 1 metre space around the pump which is probably assumed to be the space required to collect water on.