Had a crew respond to a lateral blockage yesterday. They cleared the blockage from HO clean-out but not able get through blockage. They CCTV the lateral and found a 2-inch dia. sched 80 lodged in wye to 8-inch sewer main. Of course the HO has no idea how the pipe entered the line. I called in an emergency "dig alert" and found out a 6-inch high pressure gas main runs parallel with our sewer but 8 feet away. Gas company onsite most of the job today. Lateral repair depth was at 9 and a half feet. Used back hoe to depth of 7.5-set, set up shoring, located lateral and called in our Vactor truck to clean up area around pipe. All went well, in and out in 4 hours.