Summary of Position: The LPI Compression Operator I/II/III is responsible for operating natural compression units, CNG load posts, safely making connections with CNG fill lines, filling CNG trailers, recording and tracking fill volumes, operating a yard dog to move CNG trailers to and from filling posts, spotting trailers, and operating forklifts. This position involves learning the proper filling procedures and troubleshooting for the compression site and the equipment, and performing basic maintenance on, CNG trailers, compressors, loading post, and hoses.