Burst-pipe copper, tenant-improvement cable, and steel that has to move before the next storm.
Front Range crews get a shorter outdoor season than Texas and a harsher one than the coast. If the pile is wet from a burst or buried in ice melt, say so. Clean summer copper and March emergency copper are both legitimate and they do not look alike.
Alley jobs in Denver proper need a width check. Suburban cul-de-sacs need a turnaround. Foothill drives need a grade. Put that in the first note, not the follow-up call.
Local prices vary by yard. Send a photo for a quote. Sorted copper and brass usually beat a mixed pile, but the yard sets the grade.