I saw a Water Shrewcalling and then swimming under water a few days ago in Holmfield in a tributary of Strines Beck.
I was surprised how big and loud they are. As far as I know the nearest record is a few mile away in Bradford.
In Calderdale-WN (Yahoogroups.com) (messages 1596 to 1602) various members mention water shrew in Calderdale and the possibility of updating the map. The NBN gateway map is still not updated with local records. Perhaps Colin or Hugh could once again badger WYEcology.
My record is at SE 08466 29677 on 21/4/2011
Link to NBN records of local Water Shrew.