Open Knowledge

Water Quality 10% open

United Kingdom

What data is expected?

Data, measured at the water source, on the quality of water is essential for both the delivery of services and the prevention of diseases. In order to satisfy the minimum requirements for this category, data should be available on level of the following chemicals by water source and be updated at least weekly:

  • fecal coliform
  • arsenic
  • fluoride levels
  • nitrates
  • TDS (Total dissolved solids)

What data is available

  •   Openly licensed? No (No URL given)
  •   Is the data available for free? No
  •   Is the data machine readable? No (n/a)
  •   Available in bulk? No
  •   Is the data provided on a timely and up to date basis? No
  •   Publicly available? No published by Drinking Water Inspectorate)
  •   Is data in digital form? Yes
  •   Is the data available online? No (No URL given)
  •   Does the data exist? Yes


Drinking Water Inspectorate (DWI) collects data from private companies in this link. It contains the following aggregated information:

  • The Drinking Water Inspectorate Annual Report 2014 provides an overview of the quality of public and private water supplies in England and Wales.
  • Regional reports covering the four regions of England and additionally Wales and summarising the testing and results of water quality tests, events and technical audit activity in the region. As you are aware there are examples of data for parts of the country available directly from the relevant water companies
  • Private water supplies - Presented as separate reports for England and Wales and publishing numbers and types of supplies, a summary of monitoring results and case studies.
  • Company data look up tables – data on each of the 27 private water companies
  • Water Company Statistics
  • Drinking Water Quality Events
  • Prosecutions and Cautions

Data is not in weekly reports level, parameters are not from source level and is not in open formats.

Reviewer comments

Since the data is not published at source level we dont accept the current site of the UK water information. Data is not publicly available or open.



  • Nisha Thompson


  • Mor Rubinstein