Aug 18 (Reuters) - Valero VLO.N:
REPORTS PROCESS UNIT UPSET RESULTING IN A LEAKING VALVE BONNET AND EMISSIONS TO ATMOSPHERE AT PORT ARTHUR, TEXAS REFINERY
REPORTS RESPONSE EFFORTS WERE INITIATED IMMEDIATELY TO ADDRESS THE INCIDENT AND MINIMIZE EMISSIONS
CAPACITY: 360,000 BARRELS PER DAY
SOURCE: TEXAS COMMISSION ON ENVIRONMENTAL QUALITY FILING