EXECUTION OF THE BALANCE OF WORK: "COMPLEMENTARY INSTALLATIONS OF SECONDARY NETWORKS AND HOME CONNECTIONS OF DRINKING WATER AND SEWERAGE OF THE ÑAÑA SCHEME AND ANNEXES OF THE LURIGANCHO DISTRICT "CHOSICA". - EXECUTION OF THE WORK BALANCE: "COMPLEMENTARY INSTALLATIONS OF SECONDARY NETWORKS AND HOME CONNECTIONS OF DRINKING WATER AND SEWERAGE OF THE ÑAÑA SCHEME AND ANNEXES OF THE LURIGANCHO DISTRICT "CHOSICA" (EXPIRED)