Outflow from GSTW into Wey Natural River: Trunley Heath Road

Wey Natural River

Godalming, Surrey, United Kingdom

West side of Trunley Heath Road, outflow pipe from Godalming Sewerage Treatment Works (GSTW) (51.20189, -0.57882). Vegetation has been cut back to allow access.

Location created by
Trevor Murrells

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The river level was above the outflow pipe so a sample taken directly from the pipe was not possible. The river level was the highest I have seen it.

29 Mar 09:10 by Trevor Murrells

The river was at its highest level since I started testing. Yesterday there was persistent rainfall for much of the day. I was unable to sample directly from the pipe which was submerged.

23 Feb 09:20 by Trevor Murrells

A small dead tree, covered with ivy, had fallen in front of the outflow. At the time of taking the sample water was surging from the pipe. After the surging had ceased there was some foam on the surface of the water. The sample was a mixture of pipe and river water.

26 Jan 09:30 by Trevor Murrells

The River level was above the outflow pipe, so it was not possible to take a sample directly from the pipe which I have been doing so far (testing at this location is focused on what is entering the river directly from the sewerage treatment works)

29 Dec 09:30 by Trevor Murrells

Bubbles were produced following a surge of water from the pipe. There was a washing machine smell.

25 Nov 09:15 by Trevor Murrells

Note at this location I attempt sample from the pipe/where the pipe water meets the surface of the river. Water level, colour & clarity refer to the river rather than what is flowing out of the pipe. The water level was higher than average but not breaching the river bank. There was a steady to strong flow from the pipe.

27 Oct 14:30 by Trevor Murrells

I have not answered most of the qualitative questions above due to sampling straight from the pipe. The river water directly below the pipe was brown/opaque and there was some foam a little way downstream. The estimate of water flow is replaced by flow from the pipe which can be slow, steady or surging.

23 Sep 09:05 by Trevor Murrells

Trees line the riverbank, there was a bag of discarded rubbish on the riverbank, there was a (washing machine) smell when the pipe was discharging more strongly. We tested nitrates and phosphates twice when there was a gentler flow from the pipe, and when there was a more surging flow. The results were the same. There was bubbling and some foam immediately below the outflow pipe following the stronger surge.

25 Aug 09:25 by Trevor Murrells

Lots of bubbles seen as the water coming from the outflow pipe hit the surface of the river. There was a hint of a sewerage type smell.

29 Jul 11:05 by Trevor Murrells