Glossary

Here are some of the key terms used by ReAnglia. Please let us know if you have further terms to suggest. Click on the + next to each entry to open it.

A layer of porous rock that stores and moves water, like a natural reservoir. When we dig wells or boreholes, it is to access the groundwater in the aquifer. The aquifer is the geological formation that makes that groundwater concentrated, accessible and extractable. See groundwater and recharge below for more on over-abstraction, depletion and recharge issues.

In parts of Anglia, the chalk aquifers feed chalk streams that are recognised as a globally rare and important habitat (see here or here for a map of chalk streams across the UK, home to 85% of the world’s chalk streams). The chalk aquifer is distinctive because, as a soft, porous limestone made of the compressed remains of ancient marine algae, chalk behaves like a sponge. The huge numbers of tiny pores filter water slowly and the network of fissures and fractures let water move rapidly. This means that the water from chalk aquifers emerges unusually clear, mineral-rich (alkaline), and at a very stable, cool temperature, enabling rare, biodiversity-rich habitats. Chalk is more sensitive and vulnerable than other aquifer types, because much of its water storage and flow happens relatively close to the surface, so groundwater levels can respond fast – both rising fast (flooding) and falling fast under abstraction or drought. Chalk is also unusually heavily relied upon, supplying a large percentage of UK groundwater abstraction and all of public supply in some areas.

See further:
https://education.nationalgeographic.org/resource/aquifers/
https://worldrivers.net/2025/05/13/what-are-aquifers/
https://gelogia.com/aquifers/
https://kentishstour.org.uk/about-the-stour-valley/the-river-stour2/crystal-clear-why-chalk-streams-matter/chalk-stream-origins/
https://www.ntu.ac.uk/about-us/news/news-articles/2026/08/what-is-a-chalk-stream
https://www.chilternstreams.org/discover/how-do-chalk-streams-work/
https://chalkaquiferalliance.wordpress.com/

Coming soon

Organised around a natural region — its rivers, land, and ecosystems — rather than administrative boundaries like counties. ReAnglia’s focus on the East of England reflects a bioregional way of thinking about place.

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A critical but depleted source of fresh water, groundwater is water that has soaked down through the soil’s surface into the rock layers below the water table (contrasted with surface water in lakes, rivers etc. and not including soil moisture sitting above the water table in the ‘unsaturated zone’). Accounting for 99% of all liquid freshwater on Earth, groundwater can take anything from days to hundreds to thousands of years to accumulate, yet it supplies drinking water for almost half the population and is being extracted faster than it can be recharged from precipitation and surface water (see recharge below for why this is). While in some parts of the UK most of the domestic water supply comes from surface water, in many parts of the Anglian region the majority comes from the aquifer.

See further:
https://un-igrac.org/why-groundwater/groundwater-basics/
https://www.unesco.org/en/articles/groundwater-making-invisible-visible-2022-and-beyond
https://www.unesco.org/reports/wwdr/2022/en
https://unu.edu/ehs/series/5-facts-groundwater-depletion
https://www.bgs.ac.uk/groundwater/water-resources/groundwater-resources-in-the-uk/

A worldview that treats nature as kin, not resource. Rather than humans standing apart from nature and managing it, a kincentric approach sees people as one part of a living web of relationships with plants, animals, rivers, and soil.

See further:
↠ Kincentric Leadership
↠ Worldview Chart, part of the Worldview Literacy Project, from Kindred World

Aquifers naturally recharge with groundwater through rain filtering through soil that is well vegetated and permeable. Human systems (cities, farms and water infrastructure) disrupt this sequence so that the water bypasses the aquifer completely and ends up in rivers, drains, and combined sewers or evaporates. This happens through:

  • impervious surfaces (roads, buildings, car parks) where water runs off into drains and rivers;
  • farmland or turf (in parks and gardens) with compacted or poorly structured soil where the water is more likely to evaporate or run off than to percolate down; and
  • infrastructure (roads, railways, dams, and drainage networks) that reroutes water to bypass natural recharge pathways entirely, often ending up in a ‘combined sewer system’.

    This can be mitigated through ‘sustainable urban drainage systems’ (SuDs) such as permeable paving, infiltration basins, retention ponds, soakaways, “managed aquifer recharge” schemes and systems that either divert rainwater and/or separate rainwater from the main sewerage system. However, most legal and planning frameworks still routinely overlook recharge protection.

    See further:
    https://www.bgs.ac.uk/geology-projects/suds/
    https://www.susdrain.org/delivering-suds/using-suds/background/sustainable-drainage.html
    SlowFlow Rain Planters – A raingarden in a box – SuDS Planter – by Water Sensitive Cambridge
    Chavula, Mulenga and Jimaima (2026) Impact of land use and infrastructure on groundwater recharge. Front. Water 8:1898078.
    Dave Owen, Law, Land Use, and Groundwater Recharge, 73 Stan. L. Rev. 1163 (2021).

    Going beyond “doing less harm” to actively restoring and renewing natural systems — soil, water, habitats — so they become healthier and more resilient over time, not just maintained as they are.

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    Paying attention to relationships, not just outcomes: how people relate to nature, to each other, and to the places they live, rather than treating land, water, or community purely as things to be managed or extracted from.

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    Restoring an area to a wilder, more self-sustaining state, often by reducing human management and allowing natural processes — like flooding, grazing, or natural regeneration of trees — to shape the landscape again.

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    A legal and philosophical idea that nature — or a specific river — has its own inherent rights, such as the right to flow freely or be free from pollution, rather than being treated only as property or a resource.

    Not utopian (a perfect, finished future with no path to it) and not dystopian (a warning of collapse). Thrutopian thinking asks what it might realistically take to get from here to somewhere better — grounded, not fantastical.

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    ReAnglia CIC (Company No. 17185336)

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