Programme

VOC's & GROUND GAS CONFERENCE 

9.00     Registration and tea and coffee 

9:30     Welcome from the Chair
Dr Jeremy Birnstingl, Managing Director, Regenesis  

9.40     Does current guidance lead to good practice in ground gas risk assessment?
·         Guiding principles
·         Process of investigation and monitoring
·         The data
·         Tools to inform risk assessment and remedial design
·         Verification – are you bothered?
Hugh Mallett, Associate Director, Buro Happold 

10.05      Gas Protection – the Rough Guide
·         The problem
·         Solution types
·         Installation (the rights and wrongs)
·         Solution scoring (BS8485)
·         Conclusions
Peter Atchison, Managing Director, PAGeotechnical 

10.30   What gas protection is needed? Case studies of some common problems and pragmatic solutions
·         Misinterpretation of data and ground conditions
·         Interpretation of anomalous data and use of risk assessment
·         Retrofit gas protection
Jo Strange, Regional Director, Card Geotechnics Limited 

10.55      Q & A 
11.10   COFFEE 

LANDFILL GAS CASE STUDIES 
11.35   Case study of a site in the Rochdale area
·         Introduction to general environment of the site and legislative background, including EPA 1990 and Part 2A
·         Site history, development, landfilling operations
·         Closure of landfills and identification of problems
·         Investigations:
o        initial Council funded investigations
o        full CLCPP funded investigation
o        further work, use of Gas Clam, gas sampling and Fault Tree Analysis
·         Determination: decision making processes and communication strategy
·         Future: remediation proposals
Michael Moore, Senior Contaminated Land Officer, Rochdale MBC 

12.00   Manywells Landfill: determination, management and communication
·         Initial negotiations
·         Assessment actions
·         Determination
·         Part IIA issues post-determination
·         Interim SPL management
·         SCA/SCE(R)/CLCP – resource issues
·         Interaction with E.A. - local and national
·         Community confidence and communications
·         What would we do differently now…?
·         Recommendations
Ann Barker, Lead Officer Contaminated Land, City of Bradford Metropolitan District Council 

12.25   Learning from experience – from Loscoe to Leftwich
·         25 years – what have we learned?
·         Gas protection - what works and what doesn’t
·         The value of multibarrier approach
·         Volatile Organic Compounds
·         Recent case studies and solutions
Phil Crowcroft, Partner, ERM 

12.50   Q & A 
13.05   LUNCH 

14.00   QUALITY ASSURANCE
VOC Assessment – Collecting reliable VOC Data
·         Investigation design
·         Sampling rates, volumes, and how much to purge
·         How does sampling equipment impact data quality?
·         Using shrouds and tracers to measure leakage
·         Sampling and trip blanks
·         How to interpret data
·         Case studies
Jon Parry, Principal, SLR Consulting 

14.25   Collecting and Interpreting Ground-Gas Time-Series Data
·         The pro-and cons of handheld devices and insitu gas monitoring devices such as the Gasclam
·         Gasclam time-series (continuous) data
·         Correlating gas concentration trends with environmental parameters
·         Characterisation of monitoring wells using recharge tests
·         Use of concentration duration curves
·         Case studies including Part 2A determination of a former landfill site
Simon Talbot, Managing Director, Ground-Gas Solutions Ltd