Water Pollution Control Act Article 20

An enterprise or sewage system shall apply to the special municipality, county or city competent authority for permission before storing or diluting the wastewater, and shall obey all the items registered on the permit. But the enterprises shall apply for dilute wastewater permit only if there are no other alternative wastewater treatment facilities or methods.The central competent authority shall determine the management regulation for the applicable entities, application forms, review procedures, issuance, cancellation and other items that shall be obeyed covered in the storage or dilute wastewater permission in the foregoing paragraph.Those permitted to store and diluting wastewater pursuant to Paragraph 1 shall report wastewater treatment circumstances to special municipality, county or city competent authorities in accordance with the format, content, frequency and method of competent authority regulations.
中文原文 水污染防治法第20條
事業或污水下水道系統貯留或稀釋廢水,應申請直轄市或縣(市)主管機關許可後,始得為之,並依登記事項運作。
但申請稀釋廢水許可,以無其他可行之替代方法者為限。
前項申請貯留或稀釋廢水許可之適用條件、申請、審查程序、核發、廢止及其他應遵行事項之管理辦法,由中央主管機關定之。
依第一項許可貯留或稀釋廢水者,應依主管機關規定之格式、內容、頻率、方式,向直轄市、縣(市)主管機關申報廢水處理情形。

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