The video with this report shows them walking by the old train tracks.... This map you can see the train tracks are all the way back at the dead end of Tidewater.... Click 'satellite' in bottom left for terrain view.
https://www.google.com/maps/views/explore?gl=us&vm=1&ll=33.72701,-78.92921&z=18
I zoomed close as I could and I really think that is the waste management center all the way at end, container in lot look similar to rollcarts and that business on curve is recycling center - looks like piles of metal, cardboard etc scattered about.
ETA - Zoomed again; in very corner at dead end I see 'Best Distributing' noted as business; i think this is the builders/construction supply business i found last night. Perhaps the waste management and metals recycling are two business running from that one location on curve in road.... Last night I found 3 businesses located on Tidewater....the one on corner Tidewater/Waccamaw is a gas station/Subway.