Water Pollution Control Measures and Test Reporting Management Regulations Article 9
Enterprises operating in the mining industry, earth and stone extracting industry, earth and stone processing industry, cement industry, earth and stone staking/disposing station, and at the construction site shall set up facilities that are capable of keeping off, blocking and channeling the rain on the excavation surface or stacking station. However, this shall not apply if setting up the facilities to keep off or block the rain is difficult and the competent authority gives its approval.Enterprises operating in the cement industry referred to in the preceding paragraph means the enterprises that blend the cement, concrete aggregate, admixture, and water thoroughly and transport the mixture to the construction site for grouting.The enterprises referred to in Paragraph 1 shall set up a grit chamber to collect and treat the initial rainfall and the wastewater produced from car wash platforms; the grit chamber shall meet the following requirements:I. The total design capacity shall be equal to or greater than the total area of the construction site or workplace multiplied by 0.025 meters.II. When it is not raining, the distance from the highest water surface to the top of the chamber shall be greater than one-half of its depth.III. Water impermeable material shall be used.The facilities for keeping off, blocking, and channeling rainwater as well as the grit chamber shall be maintained and the grit shall be cleaned away on a regular basis; the time at which the maintenance and cleaning are conducted and the method for such measures shall be recorded and the record shall be retained as a reference for three years.Where any enterprises referred to in Paragraph 1 take the measures specified in Paragraph 1 and Paragraph 3 as approved by the Issuing Authority, their runoff wastewater may be discharged from the approved runoff wastewater discharge point after being treated in the grit chamber.Where the rainfall is greater than the total design capacity of the grit chamber specified in Paragraph 3, Subparagraph 1, the part of the runoff wastewater whose volume exceeds the total design capacity may be rerouted for discharge.The domestic sewage produced from the offices and staff dormitories of the enterprises referred to in Paragraph 1 shall be collected and treated appropriately.
中文原文 水污染防治措施及檢測申報管理辦法第9條
採礦業、土石採取業、土石加工業、水泥業、土石方堆（棄）置場及營建工地，應於開挖面或堆置場所，舖設足以防止雨水進入之遮雨、擋雨及導雨設施。
但遮雨、擋雨設施設置有困難，並經主管機關同意者，不在此限。
前項之水泥業指將水泥、混凝土粒料及摻料，以水充分拌合後供運至工地澆鑄用者。
第一項事業應設置沉砂池，收集及處理初期降雨及洗車平台產生之廢水，其沉砂池應符合下列規定：
一、總設計容量應為工地或作業場所範圍總面積乘以○．○二五公尺以上。
二、非下雨期間最高液面距池頂高度應大於池深之二分之一。
三、應採不透水材質。
擋雨、遮雨、導雨設施及沉砂池應定期維護、清理淤砂，並記錄清理維護時間及方法；其紀錄應保存三年，以備查閱。
第一項事業依核發機關核准之內容採行第一項、第三項規定者，其逕流廢水經沉砂池處理後，得自核准之逕流廢水放流口排放。
雨量大於第三項第一款規定沉砂池總設計容量時，超過總設計容量之逕流廢水量，得以繞流排放。
第一項事業之辦公場所、員工宿舍產生之生活污水，應妥善收集處理。
但遮雨、擋雨設施設置有困難，並經主管機關同意者，不在此限。
前項之水泥業指將水泥、混凝土粒料及摻料，以水充分拌合後供運至工地澆鑄用者。
第一項事業應設置沉砂池，收集及處理初期降雨及洗車平台產生之廢水，其沉砂池應符合下列規定：
一、總設計容量應為工地或作業場所範圍總面積乘以○．○二五公尺以上。
二、非下雨期間最高液面距池頂高度應大於池深之二分之一。
三、應採不透水材質。
擋雨、遮雨、導雨設施及沉砂池應定期維護、清理淤砂，並記錄清理維護時間及方法；其紀錄應保存三年，以備查閱。
第一項事業依核發機關核准之內容採行第一項、第三項規定者，其逕流廢水經沉砂池處理後，得自核准之逕流廢水放流口排放。
雨量大於第三項第一款規定沉砂池總設計容量時，超過總設計容量之逕流廢水量，得以繞流排放。
第一項事業之辦公場所、員工宿舍產生之生活污水，應妥善收集處理。