NSW Water Dashboards-Tracking Groundwater Extraction

Tracking groundwater extraction against extraction limits: How extractions are tracking against extraction limits in inland groundwater sources.\r\n\r\nHow and why we track groundwater extraction: The amount of groundwater that can be extracted from a groundwater source is limited. While the amount extracted by all water users varies each year, on average it cannot exceed the extraction limits (i.e. the long-term average annual extraction limit or the Sustainable Diversion Limit).\r\n\r\nBefore July each year, the department assesses if average extraction over the previous five years has exceeded the long-term average annual extraction limit plus a buffer (called the compliance trigger).\r\n\r\nFor each inland groundwater source, the dashboard shows for the current water year:\r\n\r\n* volume that if extracted will reach the compliance trigger (in ML, calculated annually)\r\n\r\n* volume remaining to be extracted before reaching the compliance trigger (in ML, calculated throughout the year)\r\n\r\n* the likelihood that access to groundwater may be reduced in the next water year.

地下水开采量与开采限额对标核查：内陆地下水源开采量的限额对标执行情况

地下水开采量追踪的背景与目的：地下水源的可开采总量存在上限。尽管各用水户年度开采量存在波动，但整体平均开采量不得超过开采限额，即长期年均开采限额或可持续分流限额(Sustainable Diversion Limit)。

每年7月前，主管部门将评估过去五年的平均开采量是否超出长期年均开采限额与缓冲额度之和，该阈值被称为合规触发阈值(compliance trigger)。

针对每一处内陆地下水源，本数据仪表盘将展示当前水文年度的以下信息：

* 若开采该体积将达到合规触发阈值的开采量（单位：兆升(ML)，按年度核算）
* 达到合规触发阈值前剩余可开采量（单位：兆升(ML)，全年实时核算）
* 下一水文年度地下水取用权限可能被缩减的概率