Mining

Certain rooms have the ability to be mined, using the mine command and spending builder nanites or a patrol point in exchange for an attempt at retrieving common salvage.

Builder nanite cost of each use of the mine command depends on the density of the deposit, and each use will deplete the density.

Defeating enemies in an area increases the salvage density in the area, and lowers the associated builder nanite cost of mining. The difficulty of such fights is not relevant.

Mining attempts made with patrol points scale with builder costs, from 2 points to well over 10 per attempt.

There are several perks related to mining, and some relating specifically to salvage;

Prospector increases chances for higher rarity salvage while role playing and from combat results
Conservative miner reduces the amount your mining attempts reduce the density in an area by 33% of normal
       This essentially translates as a 33% increase in the number of mining attempts you can make relative to density.

Chemical

Abandoned Installation

Fairhaven Chemical

Latex Toy Factory

Military base (Not the one Mike in Zephyr flies you to. Might also just be the Abandoned Installation as well.)

Neogames Lab

Edible

Corn Maze

Deeper in the East Forest

East Forest

New Dawn - Farms

Electronic

Abandoned Installation

Military base (Not the one Mike in Zephyr flies you to. Might also just be the Abandoned Installation as well.)

Neogames Lab

Mechanical

Abandoned Toy Factory

Abandoned Installation

Military base (Not the one Mike in Zephyr flies you to. Might also just be the Abandoned Installation as well.)

Energy

The Wasteland

Neogames Lab