is there a water well in west ewell?

Answer 1

Here's where the name (probably) comes from:

"The name Ewell probably derives from Old English æwell, which means river source or spring. Ewell is at the head of the Hogsmill river, and the spring has often been considered sacred. Around the site of this spring is Bourne Hall, the centre of Ewell. Bourne Hall serves as the local library as well as being the host of regular gatherings such as Yoga and Karate lessons, as well as frequent "Psychic Fayres", and the large hall downstairs is the hub of Ewell's music scene, the jewel in the crown of which is the 1889 'Father' Henry Willis organ in the parish church.
Some people say that the name Ewell is an abbreviation of "Epsom well", due to Ewell's proximity to Epsom; however this is less likely, because although Epsom is the larger of the two settlements nowadays, there is evidence that much of Ewell's early development pre-dated that of Epsom. The old Roman road Stane Street deviates from a straight line slightly at Ewell, to pass the spring."

Answer 2

Must be.