The auditor’s question was simple: how do you know the 18 tonnes in the silo are the same material the certificate of analysis describes? The answer on file was a single 200 g sample taken from the top of one bag on the first day of delivery. That answer cost the plant a major non-conformance,…
The gate test says 68 percent and the driver swears the batch was dry. Both can be true, because dry is a judgement made at the surface and 68 percent is a number measured somewhere else entirely. Getting moisture right in solidified leachate is mostly a question of knowing which test answers which …
An inspector arriving at a leachate solidification pad rarely starts with the plant. They start with a folder, and the first thing they read is the batch log. If the arithmetic in that log reconciles with the waste transfer notes and the polymer purchase ledger, the visit tends to be short. If it do…
Sixty millimetres of rain in thirty-six hours does something specific to a leachate sump: the level climbs 600-800 mm, the colour goes from black to weak tea, and the scoop of polymer that produced a firm, stackable mass in February now leaves a wet, glossy surface after ten minutes of mixing. Nothi…
