The factory was fined after untreated sewage leaked into the river near the warehouse.

工廠因未經處理的汙水滲漏到倉庫附近的河川而遭到罰款。

Please call maintenance immediately; sewage is backing up in the second-floor restroom.

請立刻聯絡維修人員，二樓洗手間的汙水正在倒灌。

The city council approved a budget increase to upgrade the aging sewage treatment plant.

市議會通過預算增加案，以升級老舊的汙水處理廠。