INVESTIGATION SCOPE
When is a Phase II investigation needed?
If a Phase I Desk Study cannot discount potential contamination risks, a second phase of assessment may be required. The investigation examines the possible pollution linkages and establishes whether they are present.
The scope is based on the desk study findings, so the objectives are clearly defined and the works can be targeted and cost-effective.
SITE WORKS
Designed and supervised by Demeter
Our trained and experienced staff design and supervise the site works. Full-time supervision allows informed decisions to be made as ground conditions are encountered and provides the option of in-situ soil analysis.
Investigation methods and assessment are selected for the site with reference to applicable British Standards, Land Contamination Risk Management guidance and relevant ground gas guidance.
TESTING AND ASSESSMENT
Sampling, testing and monitoring
Soil sampling and laboratory testing
Samples are collected during the works, stored in cool boxes with ice packs and kept under our direct custody until dispatch to an accredited laboratory. Chemical results are interpreted using appropriate guidance and risk assessment methods.
Gas and water monitoring
Where required, a programme of return visits is arranged for ground gas monitoring or sampling and water monitoring or sampling. We seek to include visits during periods of falling barometric pressure. A ground gas risk assessment is prepared from the monitoring results.
Risk assessment may draw on packages including CLEA, RBCA, BP RISC, P20, GasSim and ConSim. The assessment approach is chosen to suit the site and the risks being investigated.
FEES AND NEXT STEPS
Your quotation and next steps
Phase II fees depend on the desk study findings and the ground conditions encountered. If another consultant prepared the desk study, we can provide an initial estimate. A quotation can then be issued once the council has agreed the scope of the proposed investigation.
Where the investigation identifies a need for remediation, the findings guide the remediation and validation stage.
LET’S TALK ABOUT YOUR SITE
Your next project starts here.
Tell us about your site and the services you need. These details help our team understand your requirements and respond with relevant advice.
For the reason for your enquiry, you might mention a contaminated land planning condition, a pre-purchase assessment, geotechnical requirements or soil infiltration testing.
Prefer to speak to us?
0151 521 2539
Tell us what you need
Complete all fields except the optional planning reference. Select every service that applies.