Passive dewatering - Revision history

Designing Buildings at 08:00, 11 November 2021

2021-11-11T08:00:02Z

← Older revision		Revision as of 08:00, 11 November 2021
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−	Dewatering refers to the removal of groundwater and/or surface water from a site before construction work commences. Passive dewatering occurs when groundwater is discharged to the surface under the influence of gravity. It is classed as a form of water abstraction~~, which is generally described as~~ the act of taking ~~a certain quantity of~~ water from a source of supply ~~(inland water or surface sources - such as rivers, canals, streams - or underground sources~~).	+	Dewatering refers to the removal of groundwater and/or surface water from a site before construction work commences. Passive dewatering occurs when groundwater is discharged to the surface under the influence of gravity. It is classed as a form of water abstraction (the act of taking water from a source of supply).

−	Most passive dewatering schemes are small and do not pose a risk to the environment or ~~groundwater~~ table. In these instances, it may not be necessary to obtain a water abstraction licence from the Environment Agency ~~in order to perform passive dewatering activities. A water abstraction licence gives someone the right to undertake certain types of dewatering procedures~~.	+	Most passive dewatering schemes are small and do not pose a risk to the environment or water table. In these instances, it may not be necessary to obtain a water abstraction licence from the Environment Agency.

−	Additional guidance on passive dewatering is available ~~under~~ the Environment Agency, [[w/index.php?title=W/index.php%3Ftitle%3DRef_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Passive dewatering: regulatory position statement]] (RPS). This guidance states that an RPS only applies to abstractions that were exempt under section 29(1) of the Water Resources Act 1991 (before section 5 of the Water Act 2003 was published). This includes passive dewatering, for example to:	+	Additional guidance on passive dewatering is available from the Environment Agency, [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DRef_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Passive dewatering: regulatory position statement]] (RPS). This guidance states that an RPS only applies to abstractions that were exempt under section 29(1) of the Water Resources Act 1991 (before section 5 of the Water Act 2003 was published). This includes passive dewatering, for example to:

	* Prevent flooding to roads and railway cuttings.		* Prevent flooding to roads and railway cuttings.
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	* Provide back wall drainage at landfill sites.		* Provide back wall drainage at landfill sites.

−	Ref [[w/index.php?title=W/index.php%3Ftitle%3DRef_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement]]	+	Ref [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DRef_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement]]

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

Editor at 14:48, 10 November 2021

2021-11-10T14:48:44Z

← Older revision		Revision as of 14:48, 10 November 2021
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−	Dewatering refers to the removal of groundwater and/or surface water from a site before construction work commences. Passive dewatering occurs when groundwater is discharged to the surface under the influence of gravity. It is classed as a form of water abstraction, which is described as the act of taking a certain quantity of water from a source of supply (inland water or surface sources - such as rivers, canals, streams - or underground sources).	+	Dewatering refers to the removal of groundwater and/or surface water from a site before construction work commences. Passive dewatering occurs when groundwater is discharged to the surface under the influence of gravity. It is classed as a form of water abstraction, which is generally described as the act of taking a certain quantity of water from a source of supply (inland water or surface sources - such as rivers, canals, streams - or underground sources).

−	Most passive dewatering schemes are small and do not pose a risk to the environment or groundwater table. In these instances, it may not be necessary to obtain a water abstraction licence from the Environment Agency in order to perform ~~this type~~ passive dewatering. A water abstraction licence gives someone the right to undertake certain types of dewatering ~~activities~~.	+	Most passive dewatering schemes are small and do not pose a risk to the environment or groundwater table. In these instances, it may not be necessary to obtain a water abstraction licence from the Environment Agency in order to perform passive dewatering activities. A water abstraction licence gives someone the right to undertake certain types of dewatering procedures.

−	Additional guidance is available under the Environment Agency, [[w/index.php?title=~~Ref_https~~://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement&action=edit&redlink=1\|Passive dewatering: regulatory position statement]] (RPS). This guidance states that an RPS only applies to abstractions that were exempt under section 29(1) of the Water Resources Act 1991 (before section 5 of the Water Act 2003 was published). This includes passive dewatering, for example to:	+	Additional guidance on passive dewatering is available under the Environment Agency, [[w/index.php?title=W/index.php%3Ftitle%3DRef_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Passive dewatering: regulatory position statement]] (RPS). This guidance states that an RPS only applies to abstractions that were exempt under section 29(1) of the Water Resources Act 1991 (before section 5 of the Water Act 2003 was published). This includes passive dewatering, for example to:

	* Prevent flooding to roads and railway cuttings.		* Prevent flooding to roads and railway cuttings.
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	* Provide back wall drainage at landfill sites.		* Provide back wall drainage at landfill sites.

−	Ref [[w/index.php?title=~~Ref_https~~://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement&action=edit&redlink=1\|https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement]]	+	Ref [[w/index.php?title=W/index.php%3Ftitle%3DRef_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement]]

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =
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	* Dewatering construction sites.		* Dewatering construction sites.
	* Environment Agency.		* Environment Agency.
		+	* Groundwater.
	* Raising awareness of dewatering regulation.		* Raising awareness of dewatering regulation.
	* Water abstraction licence.		* Water abstraction licence.

Editor at 14:45, 10 November 2021

2021-11-10T14:45:43Z

← Older revision		Revision as of 14:45, 10 November 2021
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	Most passive dewatering schemes are small and do not pose a risk to the environment or groundwater table. In these instances, it may not be necessary to obtain a water abstraction licence from the Environment Agency in order to perform this type passive dewatering. A water abstraction licence gives someone the right to undertake certain types of dewatering activities.		Most passive dewatering schemes are small and do not pose a risk to the environment or groundwater table. In these instances, it may not be necessary to obtain a water abstraction licence from the Environment Agency in order to perform this type passive dewatering. A water abstraction licence gives someone the right to undertake certain types of dewatering activities.

−	Additional guidance is available under the Environment Agency, [[Ref_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement\|Passive dewatering: regulatory position statement]] (RPS). This guidance states that an RPS only applies to abstractions that were exempt under section 29(1) of the Water Resources Act 1991 (before section 5 of the Water Act 2003 was published). This includes passive dewatering, for example to:	+	Additional guidance is available under the Environment Agency, [[w/index.php?title=Ref_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement&action=edit&redlink=1\|Passive dewatering: regulatory position statement]] (RPS). This guidance states that an RPS only applies to abstractions that were exempt under section 29(1) of the Water Resources Act 1991 (before section 5 of the Water Act 2003 was published). This includes passive dewatering, for example to:

	* Prevent flooding to roads and railway cuttings.		* Prevent flooding to roads and railway cuttings.
Line 9:		Line 9:
	* Provide back wall drainage at landfill sites.		* Provide back wall drainage at landfill sites.

−	Ref [[Ref_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement\|https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement]]	+	Ref [[w/index.php?title=Ref_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement&action=edit&redlink=1\|https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement]]

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

		+	* Dewatering construction sites.
		+	* Environment Agency.
		+	* Raising awareness of dewatering regulation.
	* Water abstraction licence.		* Water abstraction licence.
		+	* Water engineering.
		+	* Water impoundment licence.
		+	* Water management.

	= External resources =		= External resources =

	* Environment Agency, [https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement Passive dewatering: regulatory position statement].		* Environment Agency, [https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement Passive dewatering: regulatory position statement].
		+
		+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Regulation]] [[Category:Definitions]] [[Category:Water]] [[Category:Regulations]]

Editor: Created page with "Dewatering refers to the removal of groundwater and/or surface water from a site before construction work commences. Passive dewatering occurs when groundwater is discharged to t..."

2021-11-10T14:43:42Z

Created page with "Dewatering refers to the removal of groundwater and/or surface water from a site before construction work commences. Passive dewatering occurs when groundwater is discharged to t..."

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Dewatering refers to the removal of groundwater and/or surface water from a site before construction work commences. Passive dewatering occurs when groundwater is discharged to the surface under the influence of gravity. It is classed as a form of water abstraction, which is described as the act of taking a certain quantity of water from a source of supply (inland water or surface sources - such as rivers, canals, streams - or underground sources).

Most passive dewatering schemes are small and do not pose a risk to the environment or groundwater table. In these instances, it may not be necessary to obtain a water abstraction licence from the Environment Agency in order to perform this type passive dewatering. A water abstraction licence gives someone the right to undertake certain types of dewatering activities.

Additional guidance is available under the Environment Agency, [[Ref_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement|Passive dewatering: regulatory position statement]] (RPS). This guidance states that an RPS only applies to abstractions that were exempt under section 29(1) of the Water Resources Act 1991 (before section 5 of the Water Act 2003 was published). This includes passive dewatering, for example to:

* Prevent flooding to roads and railway cuttings.
* Prevent interference with mining, quarrying, engineering or building operations.
* Provide back wall drainage at landfill sites.

Ref [[Ref_https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement|https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement]]

= Related articles on Designing Buildings =

* Water abstraction licence.

= External resources =

* Environment Agency, [https://www.gov.uk/government/publications/passive-dewatering-regulatory-position-statement/passive-dewatering-regulatory-position-statement Passive dewatering: regulatory position statement].