Water Act Article 39

Water right holder shall install a water meter at the location of water intake, and file an annual water consumption record based on monthly water usage and actual volume in use.The authority-in-charge may inspect the meter and water consumption under the preceding paragraph from time to time.
中文原文 水利法第39條
水權人應在取水地點裝置量水設備,並將全年之逐月用水情形、實用水量,填具用水紀錄表報查。
前項設備及用水情形,主管機關得隨時派員檢查。

English translation for reference only; the Chinese text prevails. Not legal advice.