A $750,000 pot growing operation was uncovered by Manteca Police Friday morning in a residential neighborhood some four blocks northeast of city hall.Street Crimes Unit officers led by Sergeant Chris Mraz entered the home in the 300 block of Victory Avenue at about 10 a.m. and arrested Gabriel Juan Lopez on charges of cultivating marijuana and for being armed in the commission of a crime.Officers said the Manteca man offered no resistance. He was transported to the Manteca jail for questioning before he was transferred to the San Joaquin County Jail later in the afternoon. The Sheriff’s website failed to indicate a bail amount or a date for the man to appear in court in Manteca.Officers did locate a loaded hand gun, ammunition and shoulder holster in the house.