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Title: Groundwater Pollution Control Standards Ch
Date: 2025.12.23
Content: Article 1  These Standards are determined pursuant to Article 6, Paragraph 2 of the Soil and Groundwater Pollution Remediation Act (herein referred to as this Act).
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 determined that the control 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.
Article 3  Groundwater is classified into the following two categories:
  1. Category 1: Groundwater in drinking water source protection areas
  2. Category 2: Groundwater which is not of Category 1
Article 4  Pollution control items and standard values (concentration units: mg/L):
Article 5  Appropriate investigation items and areas can be assessed, chose and decided by competent authorities at all levels according to region characteristics, investigation purposes and operating methods.
Article 6  Scientific data and information can be provided by industry and related associations or environmental protection organizations to the central competent authorities as the reference of Standards modification.
Article 7  These Standards shall take effect from the date of promulgation.
These Standards revised on December 18, 2013 shall take effect on January 1, 2014.
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