LSD is kind of difficult to test for I would think, unless they are doing MS on your blood. I’m not sure exactly how they test for all these chemicals.
They don’t usually look for it though, or at least not in the past. Its usually opiates, alcohol, marijuana, and sometimes amphetamines.
Also the amount of LSD you take is in micrograms, which in itself, when diluted in your blood will end up in the nanogram range (within the sample), already approaching difficult levels in cheaper instruments.
Apparently the half life is 3-5 hours so I would doubt that given 24 hours notice, a good amount of water being drunk, you would fail this test…