Strong enough for landfill, pH-balanced for raspberries

Much of our tabula rasa of a back yard is landfill; our oil tank was buried until a couple of years ago, when it was dug up and replaced with a basement version. The hole it left behind was filled with gravel + soil from who-knows-where.

Still, I'm going to try raspberries. I read one raspberry enthusiast's page that made growing them sound akin to raising orchids (or particularly sensitive children), but I figured that I would just dig holes, water, and cross my fingers.

The one concession I made (mostly out of curiosity) was to do a pH test of the soil. So, I bought the kit (four multi-coloured vials, a bunch of pills), dug up the dirt, picked out the rocks, debris, and indignant bugs, let it dry overnight, mixed the dirt with water and a pill, and compared the resulting colour to the chart:

 

My best guess is that it mostly closely resembles the yellow at the bottom left, which is pH 6 -- my bleary recollections of 8:30 am lectures in Chem 102 with Dr. Farmer (as close to waking coma as I've come in this life) tell me that that is just about neutral. The raspberries should be ok.