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Slurry storage & silage clamps


Slurry or effluent storage

We are able to quickly & cheaply submit planning applications for slurry stores / towers and lagoons through out the UK including building warrant if in Scotland.
Our fees for this would be in the region of £375 - £550 please fill out the Contact Us form with the store details (type & size) and location for a detailed quote outlining our services and costs. 

There are a few different ways to construct a slurry store or lagoon.
Slurry tower
  • Cast in-situ concrete slurry tank these can be any shape above or below ground.
  • Pre-cast concrete slurry tank these are typically rectangular below ground or circular above ground.
  • Slurry tower a steel tank in a few different material and coatings, these are normally above ground and can't be backfilled.
  • Slurry lagoon lined with clay or a man made impermeable liner material like EPDM, PVC & HDPE.
If you are planning to build new slurry storage or an effluent tank here are some points to note:
  • Full planning is required if the slurry storage or effluent tank is over 465 sq metres (5005 sq feet).
  • If below 465 sq metres (5005 sq feet) a prior notifications will normally be required. Unless the slurry storage is within 400 m (437 yards) of a protected building, ie. building occupied by people but not part of a working farm" see planning guidelines
  • If in Scotland then building warrant is required for all slurry and effluent storage
  • All slurry stores require an engineer to certify the design
  • The need to make provision for not less than 750 millimetres of freeboard in the case of a tank with walls made of earth and 300 millimetres of freeboard in all other cases.
  • All new / substantially enlarged / reconstructed slurry stores require to comply with "The Control of Pollution (Silage, Slurry and Agricultural Fuel Oil) Regulations 2003"
    • This requires you to notify the local environment agency office 14 days before intended use in England and Wales. 28 days in Scotland & Northern Ireland.
    • The notification form has to be signed by the builder the engineer and the farmer.
  • Site the slurry storage at least 10 m from any water course including field drains or ditches into which slurry could enter if it were to escape.
  • You must construct new or substantially reconstructed or enlarged stores to last for at least 20 years with proper maintenance.
  • In Scotland you must not store slurry:
    • within 10 metres of surface water or wetland
    • within 50 metres of any spring or borehole.


Silage clampsRoofed silage clamp

If you are planning to build a new silage clamp be it for a small farm or a large anaerobic digestion (AD) plant here are some points to note:

  • Full planning is required if the silage clamp is over 465 sq metres (5005 sq feet) or you are installing effluent storage.
  • If below 465 sq metres (5005 sq feet) a prior notifications will normally be required see planning guidelines. If its not a prior notification full planning is required.
  • If in Scotland and the silage clamp is over 280 sq metres (3013 sq feet) in area then building warrant is required (overall size to include any walls or effluent channels)
  • If in Scotland and you are installing effluent storage then building warrant is required
  • All silage clamps require an engineer to certify the design.
  • All new / substantially enlarged / reconstructed silage clamps require to comply with "The Control of Pollution (Silage, Slurry and Agricultural Fuel Oil) Regulations 2003"
    • This requires you to notify the local environment agency office 14 days before intended use in England and Wales. 28 days in Scotland & Northern Ireland.
    • The notification form has to be signed by the builder the engineer and the farmer.

Agri Design can assist with all of the above requirements. We provide a reliable, independent service from initial discussions through to first use.