RP8: Constructed wetlands for the treatment of pollution

How much you’llwill be paid paid

50% of actual costscosts.

HowWhere thisto itemuse benefitsthis the environmentitem

ItAvailable createsfor andCountryside maintainsStewardship wetlandHigher featuresTier that treat field run off and otherHigher contaminatedTier waterCapital generatedGrants

Only:

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• to enteringtreat afield nearbyand watercourse.

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• in useconjunction thiswith item 

  You can only use this item alongside a feasibilityFeasibility studyStudy or a Catchment Sensitive Farming water(CSF) holdingcommissioned structuredesign action plan

Where developedthis withitem Naturalcannot Englandbe either:

used

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• toor treatconcentrated fieldpesticide spills and farmyardwashings diffuse(as runoff

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on tohistoric farming. 

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without relevant advice or consents from the Environment Agency, lead(EA), local flood authority or internalInternal drainageDrainage board.Board

How beforethis youitem startwill anybenefit work.

the environment

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  Requirements

  Agreement theholders Nitrateare Actionlikely Planto Regulations,need Slurry,to:

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  • onfollow historicthe orinstructions archaeologicalset features identified in youra Historicmanagement Environmentplan Farm(agreed Environmentwith Recorda (HEFER)

  WhatNatural youEngland mustadviser) dofor toconstructing useand thismaintaining item

  Youthe must:

  wetland area
  • provideget 3 writtenquotes quotations for completion of the work

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will not be allowed to:
• agreeplace thespoil selectedon quotationany withenvironmental, Naturalhistoric England
• create,or installarchaeological andfeature

Keeping completerecords

Agreement theholders workswill accordingneed to keep the agreedfollowing specificationrecords and timescale

• followsupply thethem advice on maintenancerequest:
  • any andconsents managementor agreedpermissions connected with Naturalthe Englandwork
  • photographs (afterof yousite havebefore carriedworks outstart
  • a thecopy work)

  Readof the constructedFeasibility farmStudy wetlandsor guideCSF produceddesign byplan the(Water-Holding WildfowlFeature andManagement WetlandPlan)

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Evidence

Agreement youholders mustwill keep 

Youneed mustto keep the following records and providesupply them with yourthe claim: claim:

• receipted invoicesinvoices, or bank statements where a receipted invoice is not available
• photographs of the site during the different stages of construction or contracts, invoices or other documents confirming the technical specification for the completed works
• photographs of the completed work
• anyworks consentsin orplace permissionsand connected with the workinstalled

YouBefore mustapplying, alsoapplicants keepmust andseek provideadvice onfrom request:

• photographsthe ofEnvironment theAgency, siteLocal beforePlanning worksAuthority start
• aand copywhere ofrelevant the feasibilityInternal studyDrainage orBoard ato Catchmentcheck Sensitiveif Farmingconsent wateris holdingrequired structureto actioncarry planout developed with Natural England

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Other

Applicants itemswill youhave canto usesend the following with thistheir item

application:

You

• the can3 usequotes thisfor itemcompletion withof RP10:the Siltwork

Advice filtrationand damssuggestions orfor seepagehow barriers

Advice to helpcarry youout use this item

The following advicesection maygives helpadvice youon tocarrying useout this item,item successfully but youdoes do not haveform topart followof itthe torequirements getfor paid. It’s not part of this item’s requirements.item.

What the specification needs to includeSpecification

YourA plandetailed orspecification study will createbe aproduced, detailedtailored specification that’s specific to yourthe site. A likely design would be a treatment structure built in at least 3 stages.

Stage 1:1 - The first stage is to create an open pond to act as a sediment trap without much wildlife value. The pond should be accessible to farm machinery for routine maintenance.

Stage 2:2 plant- The second stage should have some planting to encourage settlement and remove nutrients.

Stage 3:3 there’ll- The third stage should be a shallow wetland,wetland that is heavily vegetated to reduce pollutants in the water such as:

• nitrates or ammonia
• biological oxygen demand (BOD)
• faecal indicator organisms (FIOs)

Throughout each stage:

• restrict livestock access to reduce the risk of eroding or degrading the treatment area
• build on a non-permeable substrate (made up of 20% clay) or line the area so there’sthat there is a permanent pool of water for most of the year
• avoid building on sandy, gravelly and excessively wet soil in order to prevent contact with groundwater before treatment
• build gentle slopes with a gradient of no more than 1 in 44, – the edges should provide good wildlife habitat and act as a safety feature
• make sure the pond edges are undulated with higher and lower points to provide more edge habitat
• make sure outlet pipes are larger than inlet pipes to prevent water backing up along the system
• obtain a waste exemption if excavated material needsis removingto –be thisremoved (this information should be included in the agreed management planplan)

ManagingManage the outfall

• ensure any outfall of water is of high enough quality before it is discharged into the local watercourse

You’llApplicants will need to agree an acceptable water quality standard with theEA Environment Agency before directing any outfalloutfall.

Biodiversity

This intoitem has been identified as being beneficial for biodiversity. All Countryside Stewardship habitat creation, restoration and management options are of great significance for biodiversity recovery, as are the localwide watercourse.range of arable options in the scheme. Capital items and supplements can support this habitat work depending on the holding’s situation and potential.

The connectivity of habitats is also very important and habitat options should be linked wherever possible. Better connectivity will allow wildlife to move/colonise freely to access water, food, shelter and breeding habitat, and will allow natural communities of both animals and plants to adapt in response to environmental and climate change.

Further information

CSF operates in parts of the country where there are water quality issues linked to farming. Find out more about CSF support.

Read the constructed wetland user guide produced by the Wildfowl and Wetland Trust for further help carrying out this option.

Read Countryside Stewardship: get funding to protect and improve the land you manage to find out more information about Higher Tier and Higher Tier Capital Grants including how to apply.