General rules groundwater abstraction filter depth
收藏data.europa2024-06-26 收录
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General rules groundwater abstraction filter depth. The management area of Hunze and Aa’s water board divided into four different filter depth areas, see map. * Area 1: filter deeper than 15 meters below ground level * Area 2: filter deeper than 30 meters below ground level * Area 3: filter deeper than 45 meters below ground level * Area 4: filter deeper than 60 meters below ground level
