Product has been added to the basket
Item has been added to bibliography

Contaminated Land Group: NAPL in the UK context, does it matter?

06 November 2019
Add to my calendar
Event type:
Conference, Specialist Group
Organised by:
Contaminated Land Group, 2019 Year of Carbon
The Priory Rooms Meeting & Conference Centre, Birmingham
Event status:

NAPL in the UK context, does it matter?

One-day conference at The Priory Rooms Meeting & Conference Centre

Bull Street, Birmingham B4 6AF

Wednesday 6 November 2019

From petrol and diesel to chlorinated solvents and coal tar, the UK has a legacy of non-aqueous phase liquid (NAPL) contamination beneath the ground. In this, the Geological Society's “Year of Carbon”, the Contaminated Land Group invite you to join a one-day conference looking at characterising and managing NAPL.

Published in 2003, the Environment Agency Illustrated handbook of DNAPL transport and fate in the subsurface, warned readers that the science of assessment and remediation was new and evolving. With publication of CL:AIRE’s LNAPL Companion in 2014 and guidance on Petroleum Hydrocarbons in Groundwater in 2017 questions are raised: 

  • Where does this leave the assessment of accidental or legacy releases? 
  • What advances have we made and what is the current regulatory position?

Sessions on the day

  1. Keynotes on dense and light non aqueous phase liquids
  2. Existing guidance and its application in the UK
  3. Assessing risks from non-aqueous phase liquid
  4. Remediation of non-aqueous phase liquid

There will be keynote presentations from sector leaders and a series of 20-minute presentations followed by question-and-answer sessions.

Poster competition

A poster competition will also run throughout the day.

Abstracts for poster submissions are now closed.


9.00am Registration and refreshments
9.45am Chair's introduction (Anna Hitchmough, RSK)


9.55am LNAPL keynote (Mike Rivett, GroundH2O plus)
10.25am DNAPL keynote (Gary Weatherall, Geosynthetic)
10.55am Q&A (Anna Hitchmough)
11.10am Break and posters

Existing guidance

11.30am NAPL – does it matter? What can we learn from the last 15 years – a review of UK case studies (Alan Thomas, Kevin Leahy and James Baldock, ERM)
12.00pm NAPL and Separating Physics from Policy – A Tale of Two Countries (Michael Chendorain, ARUP)
12.20pm Q&A (Anna Hitchmough)
12.30pm Lunch and voting on posters

Assessing risks from NAPL

1.30pm World War II legacy and the challenges of managing LNAPL and DNAPL contamination of ground and surface waters (Rachel Thomas, Pembrokeshire County Council)
1.50pm Evolution of a conceptual model for NAPL distribution at former gasworks (Ben Fretwell, Woods)
2.10pm An update on the SoBRA NAPL subgroup (David Holmes, Ecologia)
2.30pm Q&A (Kristian Fox, Atkins)
2.50pm Refreshment break and voting on posters

Remediation of NAPL

3.05pm An introduction to the RemSoc "Framework for Remediation" (Quentin Hulm, RemSoc)
3.25pm Successful bio-stimulation and bioaugmentation treatment of DNAPL and dissolved phase mixed chlorinated solvent contamination under an active commercial site (Jack Shore, Regenesis)
3.45pm Site Investigation, Risk Assessment and Remediation of DNAPL at a Site in Grangemouth (Chris Eccles and Mike Harper, TerraConsult Ltd)
4.05pm Q&A (Kristian Fox)
4.20pm Round-up of the day and announcement of poster winner (Jane Dottridge, Mott Macdonald and GSCLG chair)
4.30pm Meeting close


The Priory Rooms
Quaker Meeting House
40 Bull Street
Birmingham B4 6AF


Registration rates

£ 90.00
£ 130.00
£ 50.00

Geolsoc Contact

Katherina Steinmetz

The Geological Society
Burlington House

Convenor Contact

Contaminated Land specialist group

Dave Jones

Anna Hitchmough


Event sponsors