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Water quality data archive

Service currently unavailable

Update on 10/09/2018

Unfortunately, the Water Quality Archive will be unavailable for a few more weeks. We are working hard to fix the data and extraction processes so that we can make the service available as soon as possible. Please continue to check this site for further updates.

Water quality data is still available on request by emailing national.requests@environment-agency.gov.uk.

About this service

The Water Quality Archive provides data on water quality measurements. Samples are taken at sampling points around England and can be from coastal or estuarine waters, rivers, lakes, ponds, canals or groundwaters. They are taken for a number of purposes including compliance assessment against discharge permits, investigation of pollution incidents or environmental monitoring. The archive provides data on measurements and samples dating from 2000.

Only complete samples, where all analyses have been completed, are included. Currently the dataset does not include all groundwater or third party data. In addition, where measurement results are reported as text, we are currently unable to display the results due to size limitations. Examples where this may happen are for some location data at default sampling sites and gas chromatography mass spectroscopy or metals scans. These results are available on request. Data may also be subject to change after publication.

Please contact us if you require more information.