Abstraction Statistics (ABSTAT) from 2000 onwards

This record is for Approval for Access product AfA268. The Environment Agency is responsible for licensing the abstraction of water in England and Wales. Abstraction licences set out how much water can be abstracted and for what purpose (licensed abstractions). Licence holders may also be required to measure their abstractions and submit how much water has actually been abstracted (actual abstractions). ABSTAT does not to attempt to estimate unlicensed abstractions.
Abstraction Statistics (ABSTAT) provides details of licensed abstractions and estimates of actual abstractions on the basis of an agreed set of purpose categories and abstraction source types for each calendar year from 2000. It also supplies total number of licences issued for each purpose category.
Tables in general are supplied with regional breakdowns.
ABSTAT is updated each November. Abstracted quantities are measured in megalitres per day (ML/day).
This data is also available on the Defra website.
On request information can be provided for the period from 1995 to 2010
INFORMATION WARNING
1. Please read through the summary note 'ABSTAT_summary_v10_external version.pdf' before using ABSTAT (you will need Adobe Acrobat)
2. Under the Water Act 2003 abstraction of up to 20m3/day became exempt from the requirement to hold a licence from 1 April 2005. As a result over 22,000 licences were deregulated (mainly for agricultural or private water supply purposes).
3. Return requirements were changed from 01/04/2008 whereby licences that authorise under 100m3/day are no longer asked to submit records of abstraction to the Environment Agency. This may have had a minimal impact on some reported purposes e.g. agriculture, private water supply and other.
4. From 01/04/2008 return requirements were standardised across England & Wales and the majority of returns are now requested on financial years. To align previous reporting practices two return requests were made for 2008. One at the end of the period January 2008 to March 2008 and a second at the end of period April 2008 to March 2009. This may have had an effect on underestimating actuals whereby returns may have been received for only part of the calendar year.
5. Tables 3_20 & 3_21 do not include impoundment licences or transfer type licences. A licence may authorise abstraction from a single point for a single purpose in some instances a licence can authorise abstraction from multiple points and/or for multiple purposes. ABSTAT is a purpose driven report, so where a licence authorises abstraction for more than one purpose the licence is included in the count for each use category. This will result in an overestimation of the actual number of abstraction licences in force as reported by ABSTAT.
6. Spray irrigation is very sensitive to prevailing weather conditions.
7. The Electricity Supply category includes hydropower licences.
8. Table 3_20: data labels corrected in ABSTAT2010 update to calendar year (from financial year in previous ABSTAT updates). Change applies from 2000 for 'number of licences in force' and from 2008 for 'number of new licences determined'. Table 3-21: data label corrected to calendar year in ABSTAT2010 update (from financial year in previous ABSTAT updates).
9. From 1 April 2011 EA Thames and EA Southern merged to form EA South East. The two regions are still shown separately as this is the basis of the WR charges scheme, this is reflected by the underlying reference information used to prepare ABSTAT.
10. ABSTAT is a purpose driven report, so where a licence authorises abstraction for more than one purpose the licence is included in the count for each use category. This will result in an overestimation of the actual number of abstraction licences in force as reported by ABSTAT.
11. Reference to financial year means 1 April to 31 March inclusive. Attribution statement: © Environment Agency copyright and/or database right 2019. All rights reserved.

本记录为产品AfA268的用水许可审批。英国和威尔士的水资源抽象许可由环境署负责颁发。抽象许可明确了可抽取的水量及其用途（许可抽取量）。许可持有者还可能被要求测量其实际抽取的水量并提交实际抽取量。ABSTAT数据集旨在不试图估算未经许可的抽取量。
抽象统计数据（ABSTAT）提供了基于约定用途类别和抽取来源类型的详细许可抽取量和实际抽取量估计，这些数据涵盖从2000年开始的每一年。此外，它还提供了每个用途类别颁发的许可证总数。
一般而言，表格中包含了区域分解信息。
ABSTAT每年11月更新。抽取量以每日百万立方米（ML/day）为单位。
此数据亦可在英国环境、食品和农村事务部（Defra）网站上获取。
应请求，可提供1995年至2010年期间的信息。
信息警告
1. 在使用ABSTAT之前，请仔细阅读摘要说明'ABSTAT_summary_v10_external version.pdf'（您需要Adobe Acrobat阅读器）。
2. 根据2003年《水法》，从2005年4月1日起，日抽取量不超过20立方米的水不再需要持有许可证。因此，超过22,000个许可证被取消管制（主要针对农业或私人供水目的）。
3. 从2008年4月1日起，返回要求发生了变化，日抽取量低于100立方米的许可证不再需要向环境署提交抽取记录。这可能会对某些报告的用途产生轻微影响，例如农业、私人供水和其他。
4. 从2008年4月1日起，英格兰和威尔士的返回要求标准化，现在大部分返回信息都要求在财务年度提交。为了与之前的报告做法保持一致，2008年进行了两次返回请求。一次是在2008年1月至3月期间结束时的请求，另一次是在2008年4月至2009年3月期间结束时的请求。这可能导致实际量的低估，因为返回信息可能只涵盖了日历年的一部分。
5. 表格3_20和3_21不包括蓄水许可证或转让类型许可证。在某些情况下，许可证可能授权从单一地点抽取单一用途的水，有时许可证也可能授权从多个地点和/或多个用途抽取水。ABSTAT是一项针对用途的报告，因此当许可证授权抽取超过一个用途时，该许可证将被计入每个使用类别的计数中。这可能导致ABSTAT报告的实际有效抽取许可证数量被高估。
6. 喷雾灌溉对当前天气条件非常敏感。
7. 电力供应类别包括水力发电许可证。
8. 表格3_20：在ABSTAT2010更新中已修正数据标签至日历年（从之前的ABSTAT更新中的财务年度）。变更适用于2000年的'有效许可证数量'和2008年的'确定的新许可证数量'。
表格3-21：在ABSTAT2010更新中已修正数据标签至日历年（从之前的ABSTAT更新中的财务年度）。
9. 从2011年4月1日起，EA Thames和EA Southern合并为EA South East。这两个区域仍单独显示，因为这构成了水资源收费方案的基础，这也反映了用于准备ABSTAT的底层参考信息。
10. ABSTAT是一项针对用途的报告，因此当许可证授权抽取超过一个用途时，该许可证将被计入每个使用类别的计数中。这可能导致ABSTAT报告的实际有效抽取许可证数量被高估。
11. 财务年度的引用是指4月1日至3月31日 inclusive。归属声明：© 环境署版权和/或数据库权利2019。版权所有。