How to locate Confirm table name query

Product Feature: Street Works

There is a field on a Street Works notice on the site tab, called "position". We would like to include it in a report but cannot locate it on the schema, can you tell me what it is called? 

Position is referred as Surface type in the database. 

Main table where all the types of Surface are stored is: 


In the notice, "surface_type_code" column can be found out in sw_notice_site table.

UPDATED:  March 24, 2017