Surface Water Solutions for Local Authorities

Sustainable drainage systems (SuDS) are designed to manage stormwater locally (as close its source as possible) – as well as pollution risks – to mimic natural drainage, and to encourage its infiltration, attenuation and passive treatment. In doing so, SuDs should contribute wherever possible to environmental enhancement and place making.

Play Video

Hydrorock natural aquifer block systems do all of the above and more.

We assist local government and councils with fully sustainable, smart, decentralised natural aquifer block SuDS systems to overcome flooding issues in highways, public spaces and other commercial and residential spaces.

Hydrorock benefits for Local Authorities

  • Ability to provide flexible, multi-disciplinary solutions from single simple product range
  • A highly innovative, 100% natural, stone wool product.
  • Made from Rockwool pre-wrapped in a protective geo-filtration membrane.
  • Hydrorock provides natural aquifers wherever needed to control and provide space for surface water.
  • Hydrorock absorbs 94% water capacity by cubic volume
  • Hydrorock is 100% sustainable and 100% recyclable
  • Hydrorock is a plastic-free, void-free solution
  • Hydrorock is easily configurable, easy to handle, easy to install
  • Hydrorock push fits or butts together to form modules and fully dispersable arrays for attenuation, infiltration and irrigation solutions for new and retrofit projects.
  • Hydrorock requires less excavation than traditional systems
  • Hydrorock is maintenance free and very durable


We understand that managing flood risk sustainably in your area is a complex process, involving liaison and dialogue between your own authority, local stakeholders, and  a number of other interested bodies, including:

  • Environment Agency
  • Lead Local Flood Authorities
  • Coast protection authorities
  • Water and sewerage companies
  • Internal Drainage Boards
  • Highways authorities


Schedule 3

With Schedule 3 of  the Flood and Water Management Act 2010 now in force, any new development must include high quality SuDS, and the automatic right to connect to public sewers for developers has been removed.

Sustainability is at the heart of SuDs, so it’s vital that the solutions employed to deliver it are themselves sustainable.

Hydrorock is uniquely positioned to deliver this sustainability as an integral part of your surface water management plans.

Hydrorock natural aquifer blocks maintain the natural water cycle, delivering effective, long lasting, Schedule 3-compliant solutions across a range of applications- from a rain garden, to a street-long swale, to fully integrated infiltration and attenuation systems spanning multi-disciplinary urban environments.

Flood and coastal Resilience Innovation Programmes (FCRIP)

Hydrorock is engaged with a number of authorities who are involved in FCRIP projects in their jurisdiction and seeking to deliver integrated water management solutions form catchment to coastline.

Contact us for FCRIP advice and solutions.




Click here to use our calculator and quickly calculate the number and volume of Hydrorock natural aquifer blocks needed for your application.


Hydrorock natural aquifer blocks are available to provide 100% sustainable, 100% recyclable water management solutions.

D Block
D Block
BD Block
BD Block
DHD Block
DHD Block
BDHD Block
BDHD Block
BD Block
IR Block
LG Block
LG and SL Blocks
IP Range
IP Range
Filter units
Filter units
Hydrorock fixings and connectors
Hydrorock fixings and connectors