(a) 推行更換老化水錶工程計劃；(b) 協助督導人員進行有關冷卻水塔的視察、批核和記錄工作；(c) 控制和督導負責提供與維持客戶服務的人員；(d) 就供水申請進行調查；(e) 視察水務設施；(f) 就不符合要求的食水及海水供應進行調查；(g) 進行調查、蒐集證據及執行任何與檢控工作相關的其他職務；(h) 在法庭上提交證據，並擔當助理檢控主任的工作；(i) 就與法律程序、執法工作有關的事宜與其他部門聯絡；以及(j) 或須執行其他職務。 [註：需穿著制服]

(a) implementation of a works programme of old water meter replacement; (b) assistance to his supervisors in the inspection, approvals, recording on cooling towers; (c) control and supervision of staff responsible for the provision and maintenance of customer services; (d) investigation on the application of water supplies; (e) inspection of plumbing services; (f) investigation of unsatisfactory fresh and salt water supplies; (g) investigation, collect evidence and any other duties relating to prosecution function; (h) presenting evidence in court and acting as Assistant Prosecution Officer; (i) liaison with other departments in connection with legal proceedings, enforcement matter; etc and (j) such other duties as may be required. [Note: Required to wear uniform]