Case study:Hogsmill Sewage Treatment Works phase 1 - Revision history

Alexrrc at 14:50, 6 June 2017

2017-06-06T14:50:20Z

← Older revision		Revision as of 14:50, 6 June 2017
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	\|Main contact surname=Hull		\|Main contact surname=Hull
	\|Contact organisation=Wandle Trust		\|Contact organisation=Wandle Trust
	\|Partner organisations=Natural England, Epsom ~~and~~ Ewell BC		\|Partner organisations=Natural England, Epsom & Ewell Borough Council,
	\|Multi-site=No		\|Multi-site=No
	\|Project picture=Hogsmill1.png		\|Project picture=Hogsmill1.png

Hazel Wilson at 10:41, 27 October 2015

2015-10-27T10:41:56Z

@@ Line 28: / Line 28: @@
 }}
 {{Site
-|Name=
+|WFD water body code=GB106039017440
+|WFD water body name=Hogsmill
+|Heavily modified water body=No
+|Protected species present=No
-|WFD water body code=
+|Invasive species present=No
 }}
 {{Project background

JoshRRC at 13:31, 22 October 2014

2014-10-22T13:31:01Z

← Older revision		Revision as of 13:31, 22 October 2014
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	{{~~Case_study_status~~		{{Case study status
	\|Approval status=		\|Approval status=Approved






	~~Draft~~
	}}		}}
	{{Location		{{Location

JoshRRC at 13:30, 22 October 2014

2014-10-22T13:30:39Z

← Older revision		Revision as of 13:30, 22 October 2014
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	\|Partner organisations=Natural England, Epsom and Ewell BC		\|Partner organisations=Natural England, Epsom and Ewell BC
	\|Multi-site=No		\|Multi-site=No
			\|Project picture=Hogsmill1.png
			\|Picture description=Hogsmill River Before works
	\|Project summary=Enhance a section of the Hogsmill through the STW by creating marginal and wetland area berms, backwaters and scrapes. This is within a wider wildlife area within the STW, encompassing wildflower grassland, tree planting and visitor interpretation trail and enhancement works to Surbiton Lagoon. Section 106 development gain from planning permission. Original scheme no longer valid so work proposed to the Hogsmill to enhance the channel edge habitat.		\|Project summary=Enhance a section of the Hogsmill through the STW by creating marginal and wetland area berms, backwaters and scrapes. This is within a wider wildlife area within the STW, encompassing wildflower grassland, tree planting and visitor interpretation trail and enhancement works to Surbiton Lagoon. Section 106 development gain from planning permission. Original scheme no longer valid so work proposed to the Hogsmill to enhance the channel edge habitat.
	\|Monitoring surveys and results=Photographs pre-works		\|Monitoring surveys and results=Photographs pre-works

Ivo at 10:21, 25 April 2014

2014-04-25T10:21:34Z

← Older revision		Revision as of 10:21, 25 April 2014
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=		\|Bank and bed modifications measure=Bank reprofiling
			\|Floodplain / River corridor=Creation of wetland
			\|Planform / Channel pattern=Creation of backwater

	\|Floodplain / River corridor=

	\|Planform / Channel pattern=

	~~\|Other technical measure=~~

	~~\|Management interventions=~~

	~~\|Social measures=~~

	~~\|Wider stakeholder / citizen engagement=~~

	}}		}}
	{{Hydromorphological_quality_elements_header}}		{{Hydromorphological_quality_elements_header}}

Ivo at 10:21, 25 April 2014

2014-04-25T10:21:24Z

← Older revision		Revision as of 10:21, 25 April 2014
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	}}		}}
	{{Motivations		{{Motivations
	~~\|Hydromorphological quality elements=~~		\|Specific mitigation=Riparian development
			\|Other motivation=Recreation


	~~\|Biological quality elements=~~

	~~\|Physico-chemical quality elements=~~

	\|Specific mitigation=

	\|Other motivation=

	}}		}}
	{{Measures		{{Measures

Ivo at 13:03, 10 April 2014

2014-04-10T13:03:37Z

← Older revision		Revision as of 13:03, 10 April 2014
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	\|Multi-site=No		\|Multi-site=No
	\|Project summary=Enhance a section of the Hogsmill through the STW by creating marginal and wetland area berms, backwaters and scrapes. This is within a wider wildlife area within the STW, encompassing wildflower grassland, tree planting and visitor interpretation trail and enhancement works to Surbiton Lagoon. Section 106 development gain from planning permission. Original scheme no longer valid so work proposed to the Hogsmill to enhance the channel edge habitat.		\|Project summary=Enhance a section of the Hogsmill through the STW by creating marginal and wetland area berms, backwaters and scrapes. This is within a wider wildlife area within the STW, encompassing wildflower grassland, tree planting and visitor interpretation trail and enhancement works to Surbiton Lagoon. Section 106 development gain from planning permission. Original scheme no longer valid so work proposed to the Hogsmill to enhance the channel edge habitat.
			\|Monitoring surveys and results=Photographs pre-works
			\|Lessons learn=Spring 2013:<br>A number of large log deflectors that were placed there to attempt to improve flow and scour are currently ineffective due to the over wide channel. The Hogsmill STW phase 2 project will build on this previous work undertaken by Thames Water.<br><br>Good population of large fish, probably chub (approx 40-60cm)<br>Parts of the Hogsmill River support extensive aquatic vegetation and some London rarities such as small pondweed Potamogeton berchtoldii.The upper reaches have a diverse invertebrate community including some species characteristic of chalk streams. Caddisflies and mayflies have been found, as well as the more pollution tolerant beetles, freshwater shrimps and freshwater limpets.
	}}		}}
	{{Image_gallery}}		{{Image_gallery}}

Ivo at 11:33, 10 April 2014

2014-04-10T11:33:37Z

← Older revision		Revision as of 11:33, 10 April 2014
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	{{Toggle_button}}		{{Toggle_button}}
	{{Toggle_content_start}}		{{Toggle_content_start}}
	{{~~Case_study_subcatchment~~		{{Case study subcatchment
	\|Subcatchment=		\|Subcatchment=Hogsmill







	}}		}}
	{{Site		{{Site

Ivo at 10:35, 10 April 2014

2014-04-10T10:35:11Z

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 }}
-{{Project_background
+{{Project background
-|Reach length directly affected=
+|Reach length directly affected=330 m
 |Project started=2011/01/01
 |Works completed=2011/01/01
-m
+|Funding sources=Thames Water
 }}
 {{Motivations

Ivo at 07:35, 10 April 2014

2014-04-10T07:35:01Z

← Older revision		Revision as of 07:35, 10 April 2014
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	{{Project overview		{{Project overview
	\|Status=Complete		\|Status=Complete
	\|Themes=Economic aspects, Flood risk management, Habitat and biodiversity		\|Themes=Economic aspects, Flood risk management, Habitat and biodiversity, Social benefits
	\|Country=England		\|Country=England
	\|Main contact forename=Toby		\|Main contact forename=Toby