Information Sheets
Here is our range of information sheets, covering a range of chalk stream-related topics.
Some offer a short introduction to a topic, others seek to answer some frequently-asked questions.
Let us know of any further topics you'd like to see covered here !
Information Sheet No 1 Aquatic Invertebrate Habitats v2.pdfInformation Sheet No 1 - Aquatic Invertebrate Habitats
Did you ever wonder why some invertebrates are found in some parts of the river, but not in others ? Here our expert Dr Richard Osmond answers some common questions from volunteer samplers.
Information Sheet No 2 Septic Tanks and Nutrient Neutrality v3.pdfInformation Sheet No 2 - Septic Tanks, Phosphate Removal and Nutrient Neutrality
Do you have a septic tank at home ? Here our hydrogeochemist Nick Walton discusses how you can reduce its impact on the river, and looks for some septic tank-friendly products.
Information Sheet No 3 Drought Prediction v3.pdfInformation Sheet No 3 - Predicting Droughts from Rainfall
Our water resources expert Dr Martin Burton shows how droughts can be predicted by a simple process, to enable earlier positive action by authorities
You can see Martin's blog, using the process to forecast for 2026, on our Drought Watch page.
Information Sheet No 4 Danny Chambers Briefing.pdfInformation Sheet No 4 - Briefing paper for Danny Chambers MP
Our briefing for new Winchester MP Danny Chambers, after he was elected in 2024.
Information Sheet No 5 Invertebrate Stressors v2.pdfInformation Sheet No 5 - Invertebrate Stressors
Ian Diver outlines what stressors in our chalk streams impact the different groups of invertebrates that live in them. Essential reading for interpreting your sampling results !
Information Sheet No 6 HCP Eco-friendly products v2.pdfInformation Sheet No 6 - Household Cleaning Products
The search for Household Cleaning Products that are kind to the environment, and rivers in particular, starts here !
Find out what those ingredients on the label are doing to our chalk streams ... and how to make better product choices.
Information Sheet No 7 Upper Itchen Description v2.pdfInformation Sheet No 7 - Description of the Upper Itchen
Dr Martin Burton gives an overview of the chalk streams of the Upper Itchen. Worth a read if you are new to the area - you'll find something new here if you're already familiar with the Upper Itchen.
Information Sheet No 8 Sediment Control v2.docxInformation Sheet No 8 - Sediment Control
Essential reading for all landowners - why sediment running off from roads and fields is an issue for chalk streams, and what you can do about it.
A real-life practical example of a successful mitigation project is shown.
We believe in open data sharing, with the aim of spreading the word about the importance of our chalk streams and what must be done about their current plight.
All the material on our Publications pages is published under the Creative Commons CC BY-SA licence. This means that you are welcome to copy or distribute our material, on condition that you give us credit by acknowledging us as the source.