Chairman’s WelcomeTim HodgesAssociate, Mott MacDonald
The Emerging Threat: Per- & Polyfluoroalkyl Substances (PFASs)
- PFAS have been described by the US Centre for Disease Control as “one of the most seminal public health challenge for the next decades” with drinking water standards tumbling to 13 ng/L in New Jersey, 12 ng/L New Hampshire, 10 ng/L in New York and 8 ng/L in Michigan (PFOA), 3 ng/L for PFOS in Denmark;
- PFAS comprise manmade chemicals that are extremely persistent (termed forever chemicals), mobile, and toxic which can bioaccumulate in humans by >1000 fold, partitioning to blood and the liver by interactions with protein. They contaminant drinking water supplies and have been termed the “toxic trespass” as they have often been present in drinking water for decades untested;
- Certain PFAS have been linked to high cholesterol, ulcerative colitis, thyroid disease, testicular cancer, kidney cancer, and pregnancy-induced hypertension.
Presentation provided by Arcadis (Speaker TBA)
TBCPaul PearsonSHEQ Director, Dunton Environmental
Stakeholder Engagement and Controlling Nuisance
1- Definition of Nuisance
2- Key Nuisances potentially arising from Redevelopment of Brownfield sites
A - Noise and Vibration
B - Air Quality (Dust and Odour)
C - Traffic
D - Other
3- Key Legislation and Best Practice
4- Why Brownfield Sites may be particularly challenging
5- Case studies of unacceptable nuisance
6- A model approach to Nuisance Mitigation
A - Precommencement and planning
B - Regulatory approvals / consultation
C - Stakeholder Engagement
D - Best Practice Mitigation
7- Key LessonsJoe JacksonManaging Director, Keltbray Remediation
Lunch and Networking
Achieving Stringent Targets for Chlorinated Solvents: treatment with electron-donor substrates and injectable colloidal activated carbon
Gareth LeonardManaging Director, REGENESIS
- Remedial targets for chlorinated solvent plumes are often stringent, particularly when receptors are located close to the site.
- In situ remediation through slow-release electron donor substrates and injectable colloidal activated carbon is viable.
- Hear about design, application and validation data from an ongoing project on a 60,000m2 site in Italy.
An Adaptive Remediation Strategy to Mitigate Biofouling in a Hydraulic Containment and Ex-situ Treatment System
James BaldockTechnical Director, ERM
- How a remedial approach was developed at a chlorinated solvent impacted fractured bedrock site, using a Hydraulic Containment System (HCS) to break contaminant migration pathways;
- Challenges identified during initial operation of the HCS, where a complex and unexpected combination of organic, inorganic and microbial contaminants was identified;
- How an adaptive strategy has been implemented to respond to these issues and achieve the project objectives.
Sustainable Remediation or a Jail Free Card
Dr Anil Waduge MCIWEMPrincipal Scientist, RSK Raw Limited
- CLR 11 and SuRF-UK frameworks - what are the differences;
- Risk and sustainability are mutually exclusive so that risk cannot be compromised by the sustainability;
- Mythbusting the concept of “do nothing is acceptable to manage the risk”.
Refreshments and Networking
- Delegates to return to Brownfield Investigation and Remediation 2019