excavation in foundation in ordinary soil (loam, clay or sand) including lift upto 1.5 m and lead upto30m including filling watering & ramming of excavated earth into the trenches or into the space between the building & the sides of foundation trenches or in to the plinth removal & disposal of surplus earth as directed by the e/i upto a distance of 30m from the foundation trenches (s.i. 251) including royality