Event Duration Monitoring - Storm Overflows - Annual Returns
EDM
This Event Duration Monitoring dataset relates to the performance of storm overflows in England. Data are provided by Water and Sewerage Companies (WaSCs) to the Environment Agency each year as part of their regulatory Annual Return, to fulfil their permitted conditions to discharge from these storm overflows under the Environmental Permitting Regulations. Data files are provided by year (one for 2020, one for 2021) and include a sheet for each of the 10 WaSCs with storm overflows in England. Each WaSC sheet shows how often and how long each monitored storm overflow discharged during that year. From 2021 onwards the dataset also includes reasons why event duration monitors may have provided information for <90% of the relevant return period, and why an overflow may have high spill counts in that period. These data reflect the best available information held by the WaSC at time of submission. The data file for each year also contains key summary data. These include: number of storm overflows monitored, number of storm overflows returning spill counts, average spill duration and average spill count for each WaSC. A third data file contains the annual key summary statistics from respective years plus a table showing long-term trends from 2016-2021. Attribution Statement: © Environment Agency copyright and/or database right 2022. All rights reserved.
dataset
https://environment.data.gov.uk/datafiles/d456bf40b7a94530953a378e5d814d32
protocol: WWW:DOWNLOAD-1.0-http--download
name:
description: Event Duration Monitoring - Storm Overflows - Annual Returns - Long-term Trends - dataset download
https://environment.data.gov.uk/datafiles/7581f0165e864d7e93c5535d04906932
protocol: WWW:DOWNLOAD-1.0-http--download
name:
description: Event Duration Monitoring - Storm Overflows - Annual Returns - 2021 - dataset download
https://environment.data.gov.uk/datafiles/045af51b3be545b79b0c219811d3d243
protocol: WWW:DOWNLOAD-1.0-http--download
name:
description: Event Duration Monitoring - Storm Overflows - Annual Returns - 2020 - dataset download
21e15f12-0df8-4bfc-b763-45226c16a8ac_resource
eng
http://www.opengis.net/def/crs/EPSG/0/27700
environment
OpenData
Event Duration Monitoring
Storm Overflow
EDM
sewerage system
publication
2010-01-13
-6.236
2.072
55.816
49.943
http://data.ordnancesurvey.co.uk/doc/country/england
2020-01-01
2021-12-31
creation
2021-03-30
revision
2022-03-30
annually
This Event Duration Monitoring dataset relates to the performance of storm overflows. Data are provided by Water and Sewerage Companies (WaSCs) each year as part of their regulatory Annual Returns. Summary data and long-term trends are produced from these Returns by the Environment Agency.
Open format | Portable Document Format - Unreferenced (PDF)
Open Government Licence
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://support.environment.data.gov.uk/hc/en-gb
description: Defra Data Services Forum
pointOfContact
Environment Agency
metadata@environment-agency.gov.uk
pointOfContact
2023-03-16