work of survey and network design work to prepare dpr for rural drinking water schemes , survey by electronic total station / dgps of villages with a view of preparing village index plan indicating roads / streets , surface and width of road / streets along with places of importance such as panchayat bhawan , hospital , school , post office , temple , water supply structures ( glrs , psps , pumping station physical boundary of village north etc . including levels at some important points as per instruction of engineer in charge . hydraulic design of distribution network in loop / water gem / epanet or any other compatible software . preparation of auto cad drawing ( a-3 / a-2 ) with complete hydraulic design output details , such as pipe no , node no , pipe length , pressure at node etc . submission of three sets of colour print prepared in auto cad . for length up to 2 . 5 km , rate for length up to 4 . 5 km ( up to 2000 population ) , rate for length up to 6 . 5 km ( up to 2001 to 3000 population ) , rate for length up to 7 . 5 km ( up to 3001 to 4000 population ) , rate for length up to 8 . 5 km ( above 4000 population )