Groundwater protection, water extraction areas and drilling-free zone

Groundwater protection areas are protected areas for abstraction for public drinking water supply. For the South Limburg extractions from the limestone, the entire repatriation area is protected. For the remaining extractions, the 25-year zone is protected. We distinguish between phreatic and non-freatic groundwater extractions. In the Environment Regulation, we have included specific rules for the (new) establishment or extension of various types of establishments or structures and for the (prohibition of) the use or transport of various (harmful) substances. Groundwater protection areas are also vulnerable areas under the exemption sewage obligation. Water extraction area also vulnerable area. Areas for the protection of the quality of groundwater for the purpose of drinking water extraction. Sensitive areas under the exemption sewage obligation. Drilling-free zone: Limburg has two drilling-free zones. This is the area in the Venloschol where a clay layer (Kiezeloöliet Klei) occurs and the entire Roerdalslenk. In the drilling-free zones, the drilling of clay layers for specific applications to protect groundwater resources is prohibited. In the Venloschol, the rules apply to drillings that go into the clay layer (Kiezeloöliet Klei) or deeper. This means in practice that for drillings deeper than 5 meters + NAP the regulations apply. In the Roerdalslenk, the depth at which the clay layer is found is much more erratic. Therefore, four different zones were designated of 0, 20, 30 and 80 metres respectively. The regulations apply to deeper drilling in the area concerned.地下水保护区是为保障公共饮用水供水取水而划定的保护区域。针对南林堡地区石灰岩地层的取水工程，其整个回灌区均纳入保护范围；其余取水工程的保护范围为25年影响带。我们将地下水取水划分为潜水取水与非潜水取水两类。《环境条例》中针对各类设施或建（构）筑物的（新）设立、改扩建，以及各类（有害）物质的使用或运输（的禁止情形）制定了专门规制条款。地下水保护区同时属于污水排放豁免义务项下的敏感区域。 取水区域亦属于敏感区域范畴，即出于饮用水取水目的划定的地下水水质保护区域，同时为污水排放豁免义务项下的敏感区域。 禁钻区：林堡地区共设有两处禁钻区域，分别为文洛肖尔（Venloschol）区域与罗尔达尔斯伦克（Roerdalslenk）全域，其中文洛肖尔区域分布有基泽卢利特黏土（Kiezeloöliet Klei）地层。在禁钻区内，为保护地下水资源而开展的特定用途黏土地层钻探活动均被禁止。在文洛肖尔区域，凡钻探至基泽卢利特黏土层或更深层的作业均需遵守本规定；实际操作中，即钻探深度超过荷兰阿姆斯特丹基准面（Normaal Amsterdams Peil，NAP）5米的钻探作业均受此规制。而在罗尔达尔斯伦克区域，黏土层的埋藏深度起伏波动更大，因此该区域被划分为四个不同的管控带，管控阈值分别为0米、20米、30米与80米，本规定适用于上述区域内超过对应阈值的钻探作业。