Managed Aquifer Recharge - NZ

Transcription

1 Managed Aquifer Recharge - NZ WHY IS THIS COURSE IMPORTANT? The course objective is to impart knowledge that will assist regulators and practitioners to facilitate a smooth and efficient uptake of MAR for producing urban and rural water supplies. At the end of the course participants will be aware of the traps, as well as the benefits and costs in planning, design, approval and operation of Groundwater Replenishment Schemes for sustainable water supplies. WHO SHOULD ATTEND? This course will suit potential proponents of MAR projects in local government, water utilities, industry and irrigators. The course will be valuable for urban and rural planners, hydrogeologists, stormwater managers, planners, environment protection health regulators and industry dealing with approval processes and inform policy makers. WHO IS PRESENTING? Highly experienced presenters include world renowned experts such as Dr Peter Dillon, Bob Bower and Clare Houlbrooke (Golder Associates NZ), and Helen Rutter (Aqualinc NZ) and Russell Martin who brings a wealth of practical operational experience in Groundwater Replenishment Schemes (MAR). WHAT WILL THE COURSE COVER? Introduction to MAR MAR Applications International uses of MAR Guidelines, Planning and Regulatory Approaches Understanding opportunities and risks of MAR - Assessments Economics, Regulations and Consenting of MAR Establishing a MAR pilot project: Technical considerations/tools & applications Injection Methods Ground Source Heat Pumps (GSHP) Establishing a MAR pilot project: Technical considerations/tools & applications Infiltration Methods MAR water quality considerations Establishing a MAR scheme Engineering Considerations Operational Issues and their Management MAR Perspectives from New Zealand Water Leaders MAR Applications in NZ Pilot to scheme FIELD TRIP SATURDAY 19 th August 2016 Refer to last page of schedule for field trip details. COURSE DETAILS th August 2016 Venue: Aqualinc Aviation House 3/12 Orchard Rd, Christchurch Airport, New Zealand FIELD TRIP 19 th August 2016 Refer to last page on schedule COURSE FEES Course - $1,200 (NZ) GST exclusive. Field trip - $100 GST exclusive. Aqualinc staff: 30% off. Student & Group (2 or more): 20% off. Australian delegates: 20% off. Hydrosoc & IAH members: 10% off. Contact enquiries@groundwater.com.au for more information Includes course notes, classroom teaching, tutorials, morning and afternoon teas and lunches (field trip not catered for). Attendees are to arrange their own travel and accommodation. CONTACT US enquiries@groundwater.com.au (08) REGISTER AT

2 Schedule Managed Aquifer Recharge Day 1 Wednesday 17 th August 2016 Time Session Topic Presenters 0830 Coffee & Registration Welcome Course Introduction: Participant introduction and interest in MAR Course overview Housekeeping Introduction to MAR Why MAR? The tools of MAR and their various applications MAR principles and concepts From Pre-feasibility Studies to Groundwater Replenishment Schemes The use of numerical models in the assessment and implementation of MAR Developing a risk-based approach to evaluating MAR potential Helen Rutter Aqualinc Bob Bower, Golder MAR Applications International uses of MAR Municipal applications Industrial applications Irrigation and water storage applications Rainwater harvesting Water Recycling Managing groundwater quality with MAR 1030 Morning tea Guidelines and Regulatory Approaches International MAR strategic water policy approaches International Guidelines for Assessment of Risk NZ Guidelines and Consenting and planning strategies Understanding opportunities and risks of MAR - Assessments Fate of pathogens Inorganic chemicals E.coli and enteric bacteria Diffuse Land Use Nutrients - nitrogen, phosphorus and organic carbon Organic chemicals Colloids and nanoparticles Stygofauna Pressure, flow rates, volumes, levels Hydraulic responses confined and unconfined aquifers Aquifer dissolution and well and aquitard stability Aquifer and groundwater dependent ecosystems Energy and greenhouse gas considerations GW Mounding, drainage and base flows Robert Bower, Golder 1230 Lunch Economics, Regulations and Consenting of MAR Who pays...and why? discussion on revenue approaches for MAR. International example of MAR economics (e.g. Economics of recycled water and storm water) Regulation and consenting approaches (e.g. groundwater crediting, water banking) Operating costs or various types of MAR schemes Robert Bower, Golder

3 Establishing a MAR pilot project: Technical considerations/tools & applications Injection Methods Universal stepwise approach to assessing and establish a MAR pilot project Know your aquifer, considerations related to degree of confinement and consolidation of aquifer material, recharge sources and rates Understand existing and projected water demands Understand pressure trends and abstraction limiting factors Know your geochemistry Injection water sourcing and treatment Bore design and injection management Bore field design Ground Source Heat Pumps (GSHP) Overview of Groundwater Source Heat Pumps systems Types of systems International examples Potential opportunities and risks Applications and examples in New Zealand Helen Rutter, Aqualinc 1530 Afternoon tea Establishing a MAR pilot project: Technical considerations/tools & applications Infiltration Methods Know your aquifer, recharge sources and rates, surface water drainage Understand existing and projected water demands Understand water level trends and abstraction limiting factors Know your water quality Injection water sourcing and treatment Site designs and physical characterisation Groundwater mounding and drainage Basin design considerations Basin management to maintain infiltration efficiency Bob Bower, Golder 1700 Discussion and close 1715 End of Day 1

4 Schedule Managed Aquifer Recharge Day 2 Thursday 18 th August 2016 Time Session Topic Presenters 0830 Coffee and tea MAR water quality considerations Soil Aquifer Treatment / Natural treatment general concepts Source water capture and treatment Treatment train approach, supplemental treatment processes Creating the bubble recharging into a reduced geochemical environment Biogeochemical processes impact on water quality, aquifer permeability 1030 Morning tea Operational Issues and their Management Issues relevant to well injection and infiltration systems Salinity and recovery efficiency Saline barriers, GDEs, byproducts Hydraulic impacts on private owners Impacts of aquifer heterogeneity Clogging Establishing a groundwater replenishment scheme( MAR)- Engineering Considerations Engineering design examples ie. Gisborne and Hinds Plains SCADA Control systems Clare Houlbrooke, Golder 1230 Lunch MAR Perspectives from New Zealand Water Leaders - invited guest speakers from Central Government, Regional Government, Federated Farmers, Industry, Department of Conservation, IWI. TBC MAR Applications in NZ Pilot to scheme Interactive session where participants are given a potential MAR case-study (based on New Zealand site) and are asked to apply what they have learned to solve a potential water resource problem with the tools of MAR. Clare Houlbrooke, Bob Bower, Russell Martin, Peter Dillon, Helen Rutter Workshop summary and close info on Field Tour Helen Rutter 1540 End of Day 2

5 Schedule Managed Aquifer Recharge Join the MAR workshop team as we conduct a field tour to two recently constructed MAR sites on the Canterbury Plains; the Hinds/Hekeao MAR pilot site located near Ashburton, and a MAR site near the Irwell River. The Hinds MAR pilot site is designed specifically as a tool to help groundwater storage, spring-fed stream flows and degraded water quality conditions, in an area of Canterbury with some of the highest nitrate-nitrogen concentrations conditions in New Zealand. Similarly the Irwell site is designed to help support baseflows to spring-fed streams feeding Lake Ellesmere/Te Waihora. Presentations on the 6 hour tour will be from a wide range of stakeholders and will include regulatory, environmental, agricultural, cultural, community, and economic issues that the Project is aiming to help to provide solutions to. Tour will start from Christchurch (9am) and include other MAR related whistle stops related to Canterbury water quality and quantity management challenges. Come join us and learn how it works in practice. Day 3 FIELD TRIP Friday 19 th August 2016 Time Topic 0900 Bus departs Commodore Airport Hotel st HINDS MAR PROJECT MAR project overview Groundwater replenishment scheme Technical designs and operations. Regional leadership / National government overview Cultural/environmental overview Valetta Irrigation Scheme Visit spring-fed stream / monitoring site Community overview 1200 Lunch at Sims Bakery, Ashburton (delegates to purchase own lunch) nd Project MAR in Selwyn Catchment (Irwell river area) MAR project overview Groundwater management i.e. recharge, water quality and cultural importance Bus arrives back at Commodore Airport Hotel