Groundwater Pollution Monitoring Standards Article 2
When the concentrations of substances in groundwater listed in these Standards are affected by local hydrological, geological, and environmental background factors, and it is judged that the monitored and values of pollutants listed in these Standards are reached for reasons not attributable to external pollution, after obtaining the approval from the central competent authority, these Standards shall not be applicable.
中文原文 地下水污染監測標準第2條
本標準所列地下水中物質濃度，受區域水文地質條件及環境背景因素影響，經研判非因外來污染而達本標準所列污染物項目之監測值，得經中央主管機關同意後，不適用本標準。