JEPCO on-site team field verified P&ID’s to as built conditions for the offsite areas of a Rocky Mountain Region refiner which included: Marketing Tanks, Flare, Wastewater, Railroad Loading Rack. 292 drawings in total. We completed 188 drawings and were able to re-draw/consolidate them to 74 in as built conditions. The Jōb on-site team field verified P&ID’s to as built conditions for the process unit areas of the refinery which included: HF Alky, Amine, Boilerhouse, Cooling water system, Crude, DHT, FCC, Gas Con, Isom, NHT, Plant fuel system, PLAT, SATS, SRU, Thisolve, and Treating.