Blow Wells Surveying Project

Blow Wells Surveying Project

Blow Wells Surveying Project

Blow Wells Information

A blow well outflows in the coastal plain as opposed to a spring found at the bottom of a hill or slope. It is between Louth and Barton-Upon Humber that the geological conditions for blow well formation are found.  The chalk that forms the Lincolnshire Wolds extends beneath the Lincolnshire Marsh and continues under the Humber Estuary. Rainfall which occurs over the Lincolnshire Wolds percolates down to the water table and follows the chalk under the Marsh towards Humber Estuary.  Ground beneath the marsh is typically clayey and covers the chalk and the groundwater it contains.  The groundwater here is under pressure (artesian) and where there is an opening in the clays from the chalk to the surface and there is enough pressure, groundwater can emerge at surface.  It is set of circumstances that differentiates a blow well from other types of spring.

Blow Well Sites

Submit your data

Your data is submitted via a GoogleForm. This is automatically saved on a master spreadsheet. Everyone should be able to use the same link.

The link below is now the official link to your GoogleForm to record your results and not an example form, please only record genuine results from your site.

This is a link to a PDF of the recording form to print off and take with you if you prefer to not enter data directly into the googleform or you don’t have any phone signal on site:  PDF of Blow Wells Recording Form

Crystal Moss Animal

The rare crystal moss animal (Lophopus crystallinus)  is an invertebrate which has seen a decline in the UK due to loss of habitats.

It is one of 11 species of bryozoa found in the UK and has been recorded at a blow well – a habitat only found in North and North East Lincolnshire.

Bryozoans are tiny, filter feeding marine animals which in their adult form are immobile, living glued to the sides of boulders, rocks or other surfaces.

28.03.2024 – Sarah Teasel – Update

A quick update on our progress with the Species Recovery Project.

We have recently carried out species presence/absence surveys across our 10 chosen blow well sites, along with eDNA water sample tests provided by our partners at Nottingham University, to determine whether the crystal moss animals were to be found elsewhere, other than their already recognised stronghold site of Far Ings blow wells.

We can now confirm we have had positive eDNA samples back from Far Ings alone, which may not sound exciting news, but we have been struggling to find live colonies over the winter months and we’re starting to worry there would be no crystal mosses for the eventual translocation, so this is definitely celebratory news.

We have also had the first draft for the habitat suitability reports back on our 10 potential receptor sites, and we are now creating a clearer picture of which blow wells are going to be best suited for the crystal moss animals and their successful recolonisation.

We have also had our first round of Full Spectrum – water sample analysis for the winter season back from our partners The Deep, each site will be tested, once, every season, for the next year. This not only gives insight into the water quality of the blow wells and can further inform our decisions of final receptor sites, but will help feed into ongoing monitoring of the chosen sites and any changes that might take place, and how this could affect recolonisation efforts both positively or negatively.

So it’s all very exciting, and it feels like the snowball effect is beginning to take place and building momentum, we have some cool new equipment on the way too which will hopefully help us, with the aid of our brilliant volunteers to locate statoblasts of the crystal moss animals and lead us onto the next phase of the project… colonisation!



About the funders

The project is funded by Natural England’s ‘Nature Recovery Seed Corn Funding’ scheme, the project is part of the Government’s bid to help further the aims of the Nature Recovery agenda and connect people with nature.