Case Studies

Fire-Water Risk Assessment & Testing


Environmental Management Team


Related Services

Fire-Water Risk Assessment, EPA licensing

People To Contact

Overview of service

In 2019, following a period of public consultation and input from the Fire Service, the Environmental Protection Agency (EPA) published a document titled “Guidance Note to Industry on Fire Water Retention Facilities”. This guidance replaces the EPA Guidance Note “Draft Guidance Note to Industry on the Requirements for Fire-Water Retention Facilities”, initially published in 1995.

The aim of a Fire-Water Risk Assessment (FWRA) is to:

  • Review and update the existing FWRA under the updated EPA Guidance. 
  • Calculate the volume of fire-water retention required at a given site. 
  • Evaluate the suitability of the existing drainage capacity at a given site for fire-water retention. 
  • Provide recommendations of suitable options to ensure adequate fire-water retention storage is present on-site.

Environmental Characterisation of the site, Fire Safety Management, Site Zoning, Fire-water Risk Assessment and Fire-water Retention Capacity & Systems are all considered in the assessment of Fire-water retention on site.

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Farran Mullingar
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The following site-specific documentation is reviewed in compiling an FWRA;

  • Environmental Liabilities Risk Assessment (ELRA)
  • Closure, Restoration and Aftercare Management Plan (CRAMP)
  • Material Safety Data Sheets (MSDS) for substances stored on-site
  • Fire Certs for buildings located on-site
  • Emergency Response Procedure
  • Site Layout Drawing
  • Site Drainage Plan
  • Bund Register

As outlined in the ELRA, the worst-case scenario fire event was used in estimating the required volume for fire-water retention at the site.

Group 4987
Castleforbes 3
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Project challenges

Multidisciplinary approach

The most common challenge relating to fire-water retention is retention volume. When it has been confirmed that there is a retention deficit at a site, this must be considered an environmental compliance issue and a civil engineering project.

The technical flexibility and diversity available across our multidisciplinary team are a tangible benefit of the ORS multidisciplinary service offering. ORS provides Feasibility Studies through detailed design for civil works, including pumping, sumps and storage tanks, to ensure compliance with a site’s environmental licence or permit.


Key Contacts

  • John Brennan Managing Director
    Group 8501 2
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    John Brennan

    Managing Director

  • Luke Martin
    Group 8501 2
    View Bio
    Luke Martin

    Associate and Joint Environmental Lead

    N5 Westport to Turlough Road


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Talk to A specialist

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Contact us

Block A, Marlinstown
Business Park, Mullingar,
Co.Westmeath, Ireland.
N91 W5NN

Pembr, 127 Baggot Street Lower, Baggotrath Dublin, D02 F634

Eyre Square,
H91 HY51

Office 4, Spencer House,
High Road, Letterkenny,
Co. Donegal,
Ireland. F92 PX8N

Republic of Work,
12 S Mall,
Centre, Cork,
T12 RD43

ORS has satellite offices in Newry and Maynooth.

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