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Hydrogeological Risk Assessment Northern Ireland (NI)

O’Sullivan Macfarlane specialise in Hydrogeological Risk Assessment in a range of sites across Northern Ireland using our fully equipped in-house team of locally based scientists, let by ex-NIEA hydrogeologist, Mr Peter McConvey. We can provide all aspects of groundwater assessment to clients in Northern Ireland, UK and Republic of Ireland, with all hydrogeological assessments are carried out in line with relevant government (NIEA) and GSNI guidance (Water Framework Directive) and industrial best practice.

Mr Peter McConvey – Lead Hydrogeologist

Peter McConvey is geology graduate of Queens University with a MSc in Hydrogeology from Birmingham University. Peter has over 25 years industry experience, initially working in a regulatory role for the Environment Agency in England where he was a Hydrogeologist and Area Team Leader for Hydrogeology / Hydrology responsible for Water Resources Assessment / Management and Groundwater Protection. Following this Peter worked as Hydrogeologist with the Geological Survey of Northern Ireland (GSNI) where he led on delivering the initial implementation of the Water Framework Directive – groundwater for Northern Ireland. After this Peter moved to a consultancy role where he has been involved in a diverse range of contaminated land, landfill and groundwater related investigations and risk assessments.

Hydrogeology Assessment Services include;

Hydrogeology / Groundwater

  • Borehole Design and Installation Supervision
  • Borehole Decommissioning
  • Borehole Inspections
  • Water Supply Assessments
  • Water Abstraction Licence Applications and Hydrogeological reports
  • Bottled Waters Source Assessments
  • Hydrogeological Impact Assessments
  • Water Sampling
  • Cemetery Phase 1 and Phase 2 Hydrogeological Risk Assessments
    Dewatering
  • Ecological Site Hydrology/Hydrogeology Assessments
  • Soils and Water Reports for ES and EIA reporting

Minerals Industry

  • New Quarry Soils and Water Assessments
  • Quarry Extension Assessments
  • Quarry Hydrogeological Risk Assessment

Environmental Permitting 

  • Site Condition Reports
  • Site Assessment for Permit Surrender
  • Soil, water and gas monitoring
  • Baseline Assessments
  • Monitoring Data Review
  • Permit Reviews/updates
  • Hydrogeological Risk Assessments

Land Condition Reports

  • Due Diligence Assessment for legal/financial

With a combined experience of over 50 years, drawing on experience from both the private sector and the Northern Ireland Environment Agency, we have significant expertise in the field of Hydrogeologic Risk Assessment for a range of sites / landuses. All our work is provided in-house using locally based Northern Ireland specialists. Our staff are members of the Institute of Environmental Science (IES) and the Chartered Institute of Waste Management (CIWM).

Background to Hydrogeological Risk Assessment in Northern Ireland / Role of Hydrogeologist

Understanding how water interacts with the surface and sub-surface environment at any assessment site (ie. contaminated land / landfill / abstraction point) is critical to designing innovative and cost-effective site management strategies.

A detailed review, delineation and understanding of local geology and hydrogeology strengthens the site-specific conceptual site model and provides the framework for the hydrologist to design a program of works, weather for a groundwater remedial program or abstraction.

The purpose of hydrogoeological investigations and models is to determine flow directions, pathways, and rates of groundwater flow, potential receptors of groundwater, potential contaminants, and the extent of contamination in the subsurface environment. Our use of computer modelling techniques to conceptualisation a groundwater regime allows for effective decision making and success project outcomes without encountering excessive costs.

Some of the field methods we employ include the following:

  1. Borehole exploration (including coring and window sampling) and 2D or 3D mapping of surface features;
  2. Aquifer tests using pumping or slug tests;
  3. Laboratory analysis of cores and borehole flowmeters;
  4. For subsurface chemistry, we collect soil and groundwater samples for analysis.

Additionally, O’Sullivan Macfarlane Environmental Consulting staff offer clients a wealth of site characterisation experience conducted under a wide range of regulatory environments, with half of our staff ex-NIEA scientists / hydrogeologists.