4849.3 Merwin Dela Cruz - ).Epstein Legionella Test Cooling Tower • Legionella 90 day tower inspection and legionella test. 19-Nov-2018 5135.8 Merwin Dela Cruz - .I.Epstein Water Treatment Cooling Tower - Monthly Maintenance perform water treatment on Cooling tower 10-Dec-2018 Include PSR with water levels and readin