4f4c4942-4343-5764-6473-313136333338 eng dataset Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk pointOfContact 2023-06-26 Gemini 2.2 UK Water Quality Sampling Harmonised Monitoring Scheme Detailed Data AfA255 UK Water Quality Sampling Harmonised Monitoring Scheme Detailed Data Data Manwl Cynllun Monitro Wedi’i Gysoni Samplu Ansawdd Dŵr y DU 2023-06-22 publication 116338 https://naturalresources.wales The Historic UK Water Quality Sampling Harmonised Monitoring Scheme (HMS) dataset contains individual determinand results for all sites in the UK Harmonised Monitoring Scheme network from 1974 until 2013. The Harmonised Monitoring Scheme (HMS) was established to provide an archive of water quality data for the UK. It is used to provide information for international obligations, including the long-term trends of some determinands and the estimation of riverborne input of selected determinands to the sea. Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk owner Environment Agency Wales 08708 506 506 Environment Agency Wales Cambria House CF24 0TP enquiries@environment-agency.gov.uk originator Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk custodian notPlanned Database Environmental monitoring facilities GEMET - INSPIRE themes, version 1.0 2023-06-27 publication © Environment Agency copyright and/or database right 2013. All rights reserved © Scottish Environmental Protection Agency 2013 © Northern Ireland Agri-Food and Biosciences Institute 2013 © Natural Resources Wales Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose. otherRestrictions This data is jointly owned by NRW, EA, SEPA and AFBI There are no access restrictions on this data. NRW may release, publish or disseminate it freely. eng environment ISO3166 Countries 2023-06-27 publication England and Wales (EAW) -10.06776295 4.90256433 48.7264586 61.13709061 1975-01-01 2013-12-31 Summary data for this data set is also available: UK Water Quality Sampling Harmonised Monitoring Scheme Summary Data (116328) Natural Resources Wales (NRW) 0300 065 3000 Maes-y-Ffynnon LL57 2DW enquiries@naturalresourceswales.gov.uk distributor https://datamap.gov.wales/documents/2633 View and Download dataset The sampling network includes 230 sites which are mainly located at the tidal limits of major rivers or at the points of confluence of significant tributaries. The information held within the HMS includes data on: Oxygen and ammonia, Nutrients, List II metals and Pesticides. The Environment Agency also hold and publish a copy of this dataset.