Well, thankfully, the weather has warmed up a fair bit since I took my water sample in Mursley, Buckinghamshire back in early March! It was so cold, in fact, that I had to (safely) break some ice to get to my sample and the gloves didn't offer much protection against the chilly water.
The water body itself is a 'newly-created' area located in a field belonging to my parents-in-law. The area (coincidentally next to Mursley's iconic water tower) is naturally low-lying and boggy so a natural pond has been created to attract wildlife and promote biodiversity.
Pre-pond and before the field was bought by my family, the field housed hundreds of cattle probably over hundreds of years and the neighbouring fields are currently home to sheep and horses.
Anyway, the sample gave a very 'clean' result but it will be interesting to observe the differences when season and increasing levels of biodiversity influence the health of this water body.