Well,

As the protocols of sediment sampling in natural streams, but collected as a mini job sampling.

Regards

Thank you for your direction. just the sampling is to be taken from the barrel(tank). you know the size of the barrel is small, hence should I mix the water stored within the barrel and take a representative sample of sediment concentration?

best regards

In my researchgate, there is a paper on Hazel Pistol Erosion Plots. I used 55 gallon drum to collect stormwater. As the water came into the drum, there was a container to collect what we called "heavies", like sand, gravel. That was measured separately from the drum contents. The level in the calibrated drum was measured for volume. The contents in the drum was water, silt and clay. A piece of plywood was cut slightly smaller than drum dismeter, about 2-3 inch holes were cut in the plywood, and attached something like a broom handle to the plywood, with added support from wires for stability. This was used to vigorously mix the drum contents, theoretically at least to a uniform concentration, then quickly grabbed a sample. The volume of the water in the drum times the concentration of the filtered sediment in the sample was used to get the "fines" contributed from that storm or sampling interval.

More recent was the study of sediment from a small, ephemeral gully paper. You might be able to use the geotechnical woven filter cloth to make some large filter collectors, which might collect and separate sediment from water, and possibly better than collecting just the quick to settle sand and gravel particles. If the filter fabric collector was preweighed, it could be taken back to lab, dried and weighed. The water in the tank could be stirred to check if there were clay materials passing through through fine filtration or the calibrated density float (forgot name) that can be used to measure the water plus sediment density, and that can be used to estimate the concentration amount of clay in suspension to be applied to the filtered water.