Ace Pelizon Plumbing arrived and met with Lalo and he showed me 2 clean outs on S/E corner of house. Will video line to find problem and give estimate for repairs. Line is clogged need to cable and clear line first. Tried clearing line but could not with a cable. Pulled out lots of handiwipes. Recommend jetting line a cable will not work. Ace Pelizon Plumbing will use tow behind hydro jetter to jet main mainline from clean out. Cleared stoppage at about 80 feet out. Videoed line and could not get that far. Believe I was in city main and that is where stoppage is. Called Pomona public works and notified them there main has a problem. Public works came out and notified us this is a shared lateral and not there responsibility. It is the responsibility of 851 and 860 hillcrest pl.