Because petroleum sources can be found in vastly different regions, producers must mitigate the impact of crude oil production on its surrounding ecosystems. The principal waste stream from production at ARCO's Coles-Levee field in California is co...
Subject: straw
Transcript: 2,000 yards of a straw material... And about 1,000 cubic yards of manure. [ narrator ] straw and manure provide a substrate... for the aerobic