East Lagoon

Unstead Wetland Reserve

Bramley, Surrey, United Kingdom

Location created by
Kat Kavanagh

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Low Nitrates, but high Phosphates. East Lagoon is being drained to allow cutting encroaching Willows, hence flow in from culvert has been blocked off for a few days. This might account for the high Phosphates?

28 Sep 14:30 by Andrew Lockett

Lots of duckweed covering surface, shading out blue greens. Low Phosphate & Nitrate.

24 Aug 16:12 by Andrew Lockett

Duckweed covering surface and no sign of any blue/gree algae in water (see in June's test). Low P & N this time.

28 Jul 12:40 by Andrew Lockett

Both Nitrates & Phosphates low today. Looks like an algal bloom is developing. Hard to see on the photo but looks like clouds of single celled algae on mud bottom (easily disturbed and not strands and not on surface).

30 Jun 16:00 by Andrew Lockett

Nitrate & Phosphate both very low today. Water levels seem quite high. Duckweed starting to cover water surface.

24 May 08:45 by Andrew Lockett

Rained heavily yesterday so water quality in East Lagoon may benefit from this fresh rain water.

23 Feb 12:17 by Andrew Lockett

There was a thin sheet of ice covering most of the lagoon. I sampled from an area that was ice free near the edge of the lagoon. Where I sampled the water reached about halfway up my Wellington boots. As I walked into the lagoon, breaking the ice as I went, the silt was easily disturbed. I managed to avoid churning up the silt at the sample point.

25 Nov 10:30 by Trevor Murrells

The water was lowered in the East Lagoon about a month ago to allow for the cutting back of willow, and water was allowed to re-enter the East lagoon eight days ago via the neighbouring lagoon to the west. The water was clear but the sample included some debris, water depth was about six inches, and the bottom was easily disturbed.

27 Oct 16:30 by Trevor Murrells

The lagoon has been partially drained, on a temporary basis, by the warden to allow for further cutting back of the willow so today's sample was taken close to where the bulk of willow is growing and not a few metres in from the natural shoreline. Both the nitrate and phosphate tests were virtually clear hence I have given them values representing the mid-point between 0.0 and 0.2 (i.e.. 0.1), and 0.00 and 0.02 (i.e. 0.01) respectively.

23 Sep 10:45 by Trevor Murrells

Path was quite overgrown. Saw a dragonfly!

25 Aug 10:45 by Kat Kavanagh