I am seeing a few of these making me think there is either corruption or just the internal pointers are off and running an UPDATE USEAGE is in order.

A read of the file 'xxxxxxxxx.mdf' at offset 0x00008b44ff0000 succeeded after failing 1 time(s) with error: incorrect checksum (expected: 0xe3d07596; actual: 0x41d07796). Additional messages in the SQL Server error log and system event log may provide more detail. This error condition threatens database integrity and must be corrected. Complete a full database consistency check (DBCC CHECKDB).