a cylinder 29 which may be extended to dump contents out of container access door 18 the above system is mounted on a mobile platform 31 with wheels 30 fig1 is shown excavating ground 35 in order to locate a utility 15 without doing damage to said utility 15 in a second embodiment of the invention shown in fig2 and 3 the screen 21 is formed in the shape of a cylinder the solids 6 and liquids 2 which are vacuumed through conduit 17 are deposited into vacuum container 12 around the vibrated screen well 21 the solids 6 which cannot pass through the screen well 21 remain in the vacuum container 12 to be dumped out through access door 18 when it is opened and cylinder 29 is extended liquid 2 passes through screen 21 thus dewatering the solids 6 which remain in vacuum container 12 liquid 2 which passes through screen 21 is dispensed from vacuum container 12 by means of liquid dispenser 1 which in this example is a pump the liquid 2 passes through conduit 16 and into hydrocyclone 25 where the solids 6 and liquid 2 separation is further refined the solids 6 are discharged through solids discharge conduit 4 into vacuum container 12 and liquids are discharged through.