PROVN OF TWO SEPTIC TANKS FOR 50 x USERS ALONGWITH REPLACEMENT OF COMPLETE SEWAGE LINE INCL TWO SOAKAGE WELL AT 23 INF DOU AT NAMKUM POCKET OF RANCHI MIL STN

Excavation in trenches n.exc 1.5 metres wide and n.exc 1.5 metres deep for for foundation etc for shafts, cesspits, manholes etc n.exc 10 Sqm on plan and n. exc 1.5 metres in depth and getting out in hard/dense soil.

Excavating over areas exc 10 Sqm on plan, n.exc 1.5m deep and getting out hard/dense soil

Description all as per above ser item No-2 but depth exc 1.5m and n.exc 3m, getting out hard/dense soil

Description all as per above ser item No-2 but depth exc 3m and n.exc 4.5m, getting out hard/dense soil

Returning filling in incl spreading leveling watering, well ramming in layers not etc 25 cm hard/dense soil

Removing excavated materials etc not exc 50 metres depositing where directed at a level of n.exc. 1.5 metres above the starting point

M&L brickwork with sub class 'B' bricks in one brick thick of honey comb walling, built in CM 1:4 complete.

M/L brick work with sub class B bricks built in CM 1:4 straight or curved exceeding 6m mean radius all as specified.

M&L cement concrete (1:4:8) type D2 using 40mm graded stone aggregate in fondation and mass concrete for manhole surface channels and drains

M/L PCC 1:2:4 type B0 using 12.5mm graded stone aggregate as in coping, bed etc including necessary use & waste of form work complete all as specified