It is a concept album focusing on the issues of nuclear power and waste, displacement of indigenous peoples, the firearm industry, and human discovery.

The sound is generally darker and more subdued than Entropia, with a harsh, industrial feel to the guitar tones.

Daniel Gildenlöw has personally, though reluctantly, stated that Concrete Lake is his least favorite Pain of Salvation album.

He makes a New Year's resolution to discover what consequences his life and his work have on other parts of the world, and decides to break free of the machine.

There, so much nuclear waste had been dumped over the past fifty years that if one stood by the shore for one hour, the exposure to radiation would be such that death from physical injuries would inevitably occur within two weeks.

Concrete blocks have been placed in the lake, falling to the bottom to help compress sediments down and prevent them from shifting.