Open Knowledge

Water Quality 20% open


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? Unsure (No URL given)
  •   Is the data available for free? Unsure
  •   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? Yes(as National Information System on Drinking Water (SINAC published by Ministry of Health, Social Services and Equality)
  •   Is data in digital form? Yes
  •   Is the data available online? Yes (Here)
  •   Does the data exist? Yes


The Náyade project provides the dataset for Water Quality under the National Law 1341/2007, but it does not matches the evaluation criteria:

  • Only the "Enterococos Intestinales" and "Escherichia Coli" levels are meassured (fecal bacteries)
  • There's no evidence of meassures for arsenic, fluoride levels or nitrates.

The Náyade project publish the information on a yearly basis and no evidence of re-using policy was found. The Spanish Open Data Portal offers water quality datasets with open licensing for some regions.

Reviewer comments

The local level does make available up to date datal. As well as real time monitoring of water quality stations at the state level for surface water.



  • Nisha Thompson


  • José Félix Ontañón