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INTERNATIONAL ASSOCIATION OF HYDROGEOLOGISTS – Irish Group ‘Groundwater in the Hydrological Cycle - Pressures and Protection’ Recharge www.wfdvisual.com Flow Pressures Discharge Protection Proceedings of the 30th Annual Groundwater Conference Tullamore, Co. Offaly, Ireland www.iah-ireland.org INTERNATIONAL ASSOCIATION OF HYDROGEOLOGISTS (IRISH GROUP) presents ‘GROUNDWATER IN THE HYDROLOGICAL CYCLE - PRESSURES AND PROTECTION’ Proceedings of the 30th Annual Groundwater Conference Tullamore Court Hotel, Tullamore, Co. Offaly 20th & 21st April, 2010 2010 IAH (Irish Group) Committee: President: Teri Hayes, WYG Environmental Secretary & Burdon Secretary: Morgan Burke, Stream Bioenergy Treasurer: Orla McAlister, Tobin Consulting Engineers Publicity & Education Secretary: Suzanne Tynan, Tynan Environmental Fieldtrip Secretary: Peter Mc Convey, McLorinan Consulting Ltd. Northern Region Secretary: Peter Mc Convey, McLorinan Consulting Ltd. Conference Secretary: Shane Herlihy, RPS Conference sub-committee: Matthew Craig, Environmental Protection Agency; Caoimhe Hickey, Geological Survey of Ireland; Niall Mitchell, RPS; Pat A. Groves; Colin O’Reilly, Envirologic. The IAH would like to sincerely thank Tobin Consulting Engineers for their help in administrating the Conference registration. For more information and contact details please refer to: www.iah-ireland.org Proceedings cover designed by Pat A. Groves with main image sourced from WFD visual (Water Framework Directive Visualisation tool: www.wfdvisual.com) courtesy of Scotland & Northern Ireland Forum For Environmental Research (SNIFFER). Proceedings of the 30th Annual Groundwater Conference (International Association of Hydrogeologists, Irish Group will be made available digitally on the IAH-Irish Group website within approximately three months of the meeting. Proceedings published by: International Association of Hydrogeologists (Irish Group) Copyright © The Authors, 2010 ISSN – 2009 – 227X ISSN Key title “Proceedings of the … Annual Groundwater Conference (International Association of Hydrogeologists, Irish Group)” INTERNATIONAL ASSOCIATION OF HYDROGEOLOGISTS (IRISH GROUP) Founded in January 1976, the IAH-Irish Group membership has grown from 10 to over 130, and draws individuals from professional backgrounds ranging from academic to state agencies to private consultancies. The committee consists of a council of: President, Secretary & Burdon Secretary, Treasurer, Northern Region Secretary, Fieldtrip Secretary, Education & Publicity Secretary, Conference Secretary, plus a conference sub- committee. Regular activities of the Irish Group consist of an annual two-day conference (currently held in Tullamore), an annual weekend fieldtrip, and a series of monthly lectures/technical meetings. Funding for the association is derived from membership fees and the annual conference. We welcome the participation of non-members in all our activities. Other activities of the IAH (Irish Group) include submissions to the Irish Government on groundwater, the environment and matters of concern to members, organising the cataloguing of the Burdon library and papers, which are now housed in the Geological Survey of Ireland Library, invitation of a guest speaker (often from outside Ireland) to give the David Burdon Memorial Lecture on a topic of current interest, and contributing to the Geological Survey of Ireland’s Groundwater Newsletter. The Irish Group provide small bursaries to students doing post graduate degrees in hydrogeology and pays the annual subscriptions of a few members in other countries as part of the IAH’s Sponsored Membership Scheme. If you would like to apply for a student bursary, details can be found on the IAH (Irish Group) website shown below. IAH are encouraging members to highlight their local IAH Group to their colleagues/ students and to invite anyone they feel may be interested to join. The IAH (Irish Group) is also a sponsoring body of the Institute of Geologists of Ireland (IGI). For more information please refer to: http://www.iah-ireland.org Future events: http://www.iah-ireland.org/current/events.htm IAH Membership (new or renewal): http://www.iah.org/join_iah.asp http://www.iah.org/payonline 2010 Conference Objective The 2010 Conference will be of great benefit to hydrogeologists, local authority engineers, consultants, planning officials, environmental scientists, public health officials, and many other professionals. This year is the 30th Anniversary of the Annual IAH (Irish Group) Conference, with the theme ‘Groundwater in the hydrological cycle - pressures & protection’. The two-day event will start by looking into how water recharges our aquifers through thick glacial overburden and then will move on to look at how groundwater flows through the many different rock types that Ireland possesses including karst limestone, poorly productive bedrock and sand and gravel systems. The second half of Day 1 will explore how groundwater discharges through surface water systems, groundwater dependent ecosystems and in extreme cases through flooding events. Finally, Day 1 will finish by looking at the diffuse agricultural and industrial point sources of contamination that can affect this precious resource and the implications of the Environmental Liability Directive for groundwater protection. Day 2 will begin by looking at the new measures that are available to protect groundwater including legal, source protection zones and recent EPA guidance. The conference will close by looking at the impact that climate change is and may have on groundwater resources in Ireland and globally. Evening entertainment will be provided on the first night of the conference at a local venue and is included in the registration fee. ‘Groundwater in the Hydrological Cycle – Pressures and Protection’ 30th Annual Groundwater Conference International Association of Hydrogeologists –Irish Group Tullamore Court Hotel, Tullamore, Co. Offaly: Tues 20th & Wed 21st April, 2010 Programme Day 1, Tuesday 20th April 8.15 - 9.15 Conference Registration; Tea, Coffee, & Exhibits INTRODUCTION 9:30 Welcome and Introduction Teri Hayes - President IAH Irish Group (WYG Environmental) SESSION 1: RECHARGE & GROUNDWATER FLOW 9.45 ‘Groundwater Recharge: Influence of Glacial Tills on Resource Assessment and Groundwater Protection in Ireland’ - Bruce Misstear (Trinity College Dublin) and Dr. Les Brown (SLR Consulting) 10.10 ‘Groundwater Flow in Karst Systems’ - Dr. David Drew (Trinity College Dublin) 10.35 Discussion, Q&A 10.55 - 11.25 Tea & Coffee 11.25 ‘Groundwater Flow Regimes in Irish Poorly Productive Aquifers’ - Dr. Jean- Christophe Comte (Queens University, Belfast) 11.50 ‘Groundwater Supply Development in Sand & Gravel Aquifers’ - Gerry Baker (WYG Ireland) 12.15 Discussion, Q&A 12.45 - 14.00 Buffet lunch in Tullamore Court Hotel SESSION 2: DISCHARGE 14.00 ‘Surface Water - Groundwater Interactions’ - Dr. Geoff Parkin (University of Newcastle) 14.25 ‘Groundwater Dependent Ecosystems’ - Dr. Geert van Wirdum (Deltares Subsurface and Groundwater Systems) 14.50 ‘Multiple Flooding Mechanisms in Ennis Town and Environs’ - Mary Burke (Clare County Council) 15.10 Discussion, Q&A 15.30 - 15.50 Tea & Coffee SESSION 3: PRESSURES 15.50 ‘Agriculture Landspreading & Set-back Distances’ - Donal Daly (Environmental Protection Agency) 16.10 ‘The Assessment and Prioritisation of Point Sources of Groundwater Contamination in Ireland’ - Dr. Marcus Ford (Ford Consulting Group) 16.30 ‘Groundwater Impacts from Mining: Irish Case Studies’ - Geoff Beale (Schlumberger Water Services UK Ltd) 16.50 ‘Environmental Liability Directive Implications for Groundwater’ - Kevin Motherway (Environmental Protection Agency) 17.10 - 17.30 Discussion, Q&A The final panel discussion on Day 1 will be followed by a wine reception in the Tullamore Court Hotel sponsored by City Analysts Limited, followed by a BBQ meal at Hugh Lynch's Bar, Kilbride Street, Tullamore, sponsored by In-Situ Inc. ‘Groundwater in the Hydrological Cycle – Pressures and Protection’ 30th Annual Groundwater Conference International Association of Hydrogeologists –Irish Group Tullamore Court Hotel, Tullamore, Co. Offaly: Tues 20th & Wed 21st April, 2010 Programme Day 2, Wednesday 21st April SESSION 4: PROTECTION 9.30 ‘Legal Perspective on Groundwater Protection’ - Deborah Spence (Arthur Cox) 9.50 ‘Delineating Source Protection Zones and Zones of Contribution for Monitoring Points’ - Coran Kelly (Tobin Consulting Engineers) 10.10 ‘EPA Guidance on Protecting Groundwater Supplies’ - Margaret Keegan (Environmental Protection Agency) 10.30 Discussion, Q&A 10.50 - 11.20 Tea & Coffee SESSION 5: CLIMATE CHANGE 11.20 ‘Impacts of Climate Change on Rainfall, River Discharge and Sea Level Rise’ - Dr. Tido Semmler (Met Éireann) 11.40 ‘What will the Impacts of Climate Change be for Groundwater Systems in Ireland?’ - David Ball 12.05 ‘Implications of Climate Change on Groundwater Resources’ - Dr. Kevin Hiscock (University of East Anglia) 12.30 Discussion, Q&A 12.50 Conference closing address: Shane Herlihy - Conference Secretary IAH Irish Group (RPS) 13.00 Buffet lunch in Tullamore Court Hotel . Table of Contents SESSION 1: RECHARGE & GROUNDWATER FLOW 1. ‘Groundwater Recharge: Influence of Glacial Tills on Resource Assessment and Groundwater Protection in Ireland’ Bruce Misstear (Trinity College Dublin) and Dr. Les Brown (SLR Consulting)……………... I-1 2. ‘Groundwater Flow in Karst Systems’ Dr. David Drew (Trinity College Dublin)…………………………………………………………. I-13 3. ‘Groundwater Flow Regimes in Irish Poorly