Ground Water > Technical Reports

There are 31 records in this subcategory.


(2012) Te Waihora/Lake Ellesmere Catchment: Functional Significance and Sensitivity of Groundwater Fauna. (Golder Associates, prepared for Environment Canterbury)
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Keywords: aquifer, Catchments, ecosystems, groundwater biodiversity, groundwater contamination, groundwater ecosystems, groundwater fauna, Selwyn/Te Waihora catchment.
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Callander, Peter, Thomas, Neil. (2011) Technical Review of the Effectiveness of the Existing Groundwater Management Regime Operating in the West Melton Special Zone. (Pattle Delamore Partners Ltd, prepared for Environment Canterbury)
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Keywords: abstractions, bores, goudnwater patterns, Groundwater, groundwater zone, management Issues, monitoring bores, trigger levels, West Melton.
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Scott, D M, Thorley, M J. (2010) A methodology to model groundwater flow in sub-areas of the Canterbury Plains. #ISBN 978-1-877574-17. (Environment Canterbury Regional Council)
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Keywords: Abstraction Wells, Applied Research Associates New Zealand, Aquifer Structural Composition, Aquifer System, Canterbury Plains, Constant Heads, Environment Canterbury, Flux, Geological Model, Geological Structure, Goundwater Flow Model, Groundwater Vistas, Land Surface Recharge, Leapfrog Hydro, Methodologies, Model Uncertainty, MODFLOW model, Numerical Flow Models, PEST Parameter Estimation Tool kit, Predictions, Recharging Wells, United States Geological Survey, USGS.
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Abraham, Phil, Hanson, Carl. (2010) Annual groundwater quality survey, spring 2009. #ISBN 978-1-877574-25. (Environment Canterbury)
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Keywords: 2009, Aesthetic, ammonia, anions, Annual, Arsenic, cations, Changing land use, Chloride, drinking water quality, E-Coli, Groundwater, Iron, Long term trend, Long-term patterns, Manganese, MAV, microbiological indicators, Nitrate, Nitrate Nitrogen Concentrations, pH, State of the Environment, Surface land use, trends, Water Quality.
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Close, Murray. (2010) Critical review of contaminant transport time through the Vadose Zone. #ISBN 978-1-927137-54. (Institute of Environmental Science and Research (ESR), prepared for Environment Canterbury)
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Keywords: age Determination, alluvial gravel, Canterbury Plains, contaminant transport, goundwater monitoring, groundwater nitrate concentrations, groundwater recharge, microbes, nitrate, recharge events, seasonal changes, Templeton, transport of nitrate, travel time, Vadose Zone.
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Close, Murray, Hewitt, Allan, Lilburne, Linda, McLeod, Malcolm, Webb, Trevor. (2010) Mapping of vulnerability of nitrate and phosphorus leaching, microbial bypass flow, and soil runoff potential for two areas of Canterbury. #ISBN 978-1-927137-74. (Landcare Research and Environmental Science and Research, prepared for Environment Canterbury)
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Keywords: agricultural land use, aquifers, bypass flow, Central Plains, denitrification, leachate, leaching, management Issues, microbes, microbes, Nitrogen, nutrient, organic molecules, pesticides, phosphorus, phosphorus, riparian buffer strips, runoff, sediment, soil, soil depth, water table, water table depth.

Hickey, C W, Martin, M L. (2009) A review of nitrate toxicity to freshwater aquatic species. #ISBN 978-1-86937-997. (NIWA, prepared for ECAN)
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Keywords: acute and chronic limits, Canterbury's aquatic ecosystems, chronic nitrate concentrations, concentrations, contaminants, cumulative effects, Environment Canterbury, Natural Resources Regional Plan, non-point source discharges, NRRP, numerical limits, nutients, pathogens, sediment, species sensitivity to contaminants, toxicity.
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Abraham, Phil, Hanson, Carl. (2009) Depth and spatial variation in groundwater chemistry - Central Canterbury Plains. #ISBN 978-1-86937-969.
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Keywords: apline river recharge, aquifer stratigraphy, central plains groundwater, chemistry sampling, groundwater, groundwater flow, hydrogeological history, land Surface Recharge, Oxygen-18, Rakaia River, recharge sources, soil drainage.
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Williams, Howard. (2009) Groundwater resources associated with the Rakaia riparian sub-area: assessment of technical and allocation issues. #ISBN: 978-1-86937-97. (Environment Canterbury)
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Keywords: Adaptive management, aquifer structure, bores, confining layers, consented water use, groundwater, groundwater age, groundwater allocation, groundwater hydrology, groundwater levels, low flows, minimum flows, nitrate, oxygen isotope data, Rakaia, Rakaia-Selwyn Groundwater Allocation Zone, Rakaia-Selwyn zone, recharge, recharge sources, Riparian sub area, riparian zone, Southbridge Water Users Group, springs, surface water hydrology, trigger levels, Uncertainties, water chemistry.
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Lough, Hilary, Williams, Howard. (2009) Vertical flow in Canterbury groundwater systems and its significance for groundwater management. #ISBN 978-1-86937-977. (Environment Canterbury)
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Keywords: Abstraction, aquifer, confinement, drawdown, flow direction, geological Structure, groundwater flow, hydrogeological parameters, modelling, observation wells, Piezometric contours, Pumping-induced leakage, sedimentary deposits, water table.
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Bidwell, Vince, Howard, Williams, Scott, David. (2008) Adaptive management of groundwater in the Rakaia-Selwyn Groundwater Allocation Zone: technical and implementation issues. #ISBN: 978-1-86937-64. (Environment Canterbury)
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Keywords: Adaptive management, cumulative effects, groundwater, groundwater management, irrigation demand, management, rakaia-Selwyn Groundwater Allocation Zone, recharge-based management.
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Dysart, Marie, Miller, Malcolm, Pascoe, Warwick. (2008) Rakaia Catchment Water Allocation Issues: A review of water allocation administration, stream depletion management, and other issues within the Rakaia Catchment, and options for formalizing allocation arrangements.. #ISBN: 978-1-86937-89. (Environment Canterbury)
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Keywords: 1 for 1 sharing, Abstraction, allocation Blocks, allocation limits, Banding System, groundwater allocation zones, mean daily flow, minimum flow, minimum flow recommendations, natural Resources Regional Plan, NRRP, Rakaia, Rakaia River, reductions in use, Reliabilty of supply, surface water allocation zones, The Banding System, Water conservation Order, water permit holders, water use.
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Weir, Julian. (2007) Canterbury Groundwater Model 2. (Aqualinc Research Limited)
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Keywords: abstraction, abstraction Levels, alluvial deposits, aquifer, climate, groundwater, groundwater flow, groundwater levels, groundwater model, Hydrogeological overview, irrigation, land use change, modelling, piezometric, predictions, rainfall, Rangitata Diversion Race, river flows, river inputs, saltwater intrusion, simulation, suitability, surface water.
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Krom, Thom, Weir, Julian. (2006) Central Plains Water Enhancement Scheme - Assessment of Effects on the Groundwater Environment. (Aqualinc Research Limited, prepared for URS New Zealand Ltd)
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Keywords: base flow, Central Plains, Central Plains Water, Central Plains Water Enhancement Scheme, Evapotranspiration, geological data, groundwater, groundwater environment, groundwater quality, groundwater quantity, groundwater system, hydrogeology, irrigation, land use change, mitigation, modelling, nitrate-N, nitrates, Pesticides, phosphorus, rainfall, surface water.
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Aitchison-Earl, Philippa, Williams, Howard. (2006) Relationships between groundwater pressures and lowland stream flows in the Lake Ellesmere area. (Environment Canterbury)
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Keywords: aquifer, conductivity, correlations, environmental instream values, Environmental values, groundwater, groundwater pressure, hydraulic gradient, Instream Ecological Values, instream values, lake Ellesmere, minimum flows, stream flows, te Waihora, trigger levels, trigger values, water-bearing strata.
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Martin, Adam, Williams, Howard. (2006) State of the Canterbury Region Water Resource, October 2006. (Environment Canterbury)
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Keywords: climate projections, foothill river, groundwater Levels, groundwater recharge, land temperature, lowland streams, rainfall, Recharge, river flows, River flows, soil Moisture, soil Moisture, soil moisture levels, temperature, trends, water balance, wells.
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Aitchison-Earl, Philippa, Davey, Grant, Horrell, Graeme, Martin, Adam, Sanders, Russel, Scott, David, Smith, Esther, Weeber, John. (2005) State of the Canterbury Region Water Resource, October 2005. (Environment Canterbury)
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Keywords: annual, aquifers, Climate, climate projections, El Nino, groundwater, groundwater levels, groundwater recharge, hydrograph, rainfall, rainfall levels, recharge, river flows, river flows, soil Moisture, soil moisture deficit, soil moisture levels, state of water resources, temperature, trends.
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Vincent, Craig. (2005) The Hydrogeology of the Upper Selwyn Catchment: MSc thesis summary. (Environment Canterbury)
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Keywords: aquifer characteristics, aquifers, aquifers, dairy expansion, farming, farming practices, Future management, geology, geomorphology, Geomorphology, groundwater, groundwater, groundwater age, groundwater ages, groundwater chemistry, groundwater demand, Groundwater flow, groundwater recharge, groundwater recharge, groundwater-surface water interface, Hororata River, Hororata River, hydrology, Hydrology, intensive farming, intensive land use, irrigation, Irrigation, land surface activities, land use change, management, nitrate-nitrogen, oxygen-18, piezometric contours, Recharge, recharge sources, river gaugings, Selwyn catchment, Selwyn Plains, selwyn River, Selwyn River, spring-fed, Springs, Surface water, Upper Selwyn Catchment, Upper Selwyn Plains, Waianiwaniwa River, water chemistry, water levels, water quality, water quantity.
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Aitchison-Earl, Philippa, Sanders, Russel, Scott, D M. (2004) Groundwater Allocation Limits: Guidelines for the Canterbury Region. (Environment Canterbury)
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Keywords: allocation limits, average annual rainfall, Groundwater allocation, groundwater allocation zones, intermittent streams recharge, irrigation recharge, land-surface recharge, NRRP, sustainable yield.
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Scott, David. (2004) Groundwater Allocation Limits: land-based recharge estimates. (Environment Canterbury)
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Keywords: 1st Order Approach, 2nd Order Approach, Allocation Zones, Climate, Evapotranspiration, First Order Approach, groundwater, Irrigation, Land Surface Recharge, Meteorological, Rainfall, Recharge Estimation, Second Order Approach, Soil Moisture, Soil Moisture Budget Model.
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Aitchison-Earl, Philippa, Davey, Grant, Ettema, Marc, McKerchar, Alistair, Scott, D M, Smith, Esther, Weeber, John. (2004) State of the Canterbury Region Water Resource, October 2004. (Environment Canterbury)
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Keywords: annual, aquifers, Climate, climate projections, El Nino, groundwater, groundwater levels, groundwater recharge, hydrograph, rainfall, rainfall levels, recharge, river flows, river flows, soil Moisture, soil moisture deficit, soil moisture levels, state of water resources, temperature, trends.
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Grant, Helen. (2003) The Surface and Groundwater Resources of the Little Rakaia Zone (Lee River, Tent Burn and Jollies Brook). (Environment Canterbury)
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Keywords: allocation, aquifer, aquifer properties, Cryers creek, groundwater, groundwater abstractions, groundwater flow, groundwater recharge, groundwater resources, irrigation, irrigation recharge, Jollies Brook, Lee river, Little Rakaia Zone, rainfall, Rainfall, Rakaia, shallow aquifer, spring-fed, spring-fed streams, stock race, stream depletion effect, surface resources, surface water, Tent Burn, water balance.
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Stewart, Mike, Trompetter, Vanessa, Van der Raaij, Rob. (2002) Age and source of Canterbury plains groundwater. (Prepared by Institute of Geological and Nuclear Sciences for Environment Canterbury)
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Keywords: Age Determination, age of groundwater, CFC Dating, Confined aquifers, Environment canterbury, groundwater recharge, Nitrogen concentrations, Nitrogen-15, Oxygen-18, security of groundwater drinking water supplies, source of groundwater, sustainable development, Tritium.
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Hayward, S A. (2002) Christchurch-West Melton Groundwater Quality: A review of groundwater quality monitoring data from January 1986 to March 2002. (Environment Canterbury)
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Keywords: aesthetic, algal growth, aquifer, arsenic, Christchurch, Concentration, confined aquifers, drinking water standards, faecal coliform concentrations, groundwater, groundwater chemistry, groundwater quality surveys, groundwater recharge, high water levels, iron, Long term patterns, long term trends, manganese, maximum Accepted Value, nitrate-nitrogen, ph, phosphorus, rainfall, recharge sources, saltwater, spring-fed, springston, unconfined aquifer, unconfined groundwater.
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Abraham, Phil, Hanson, Carl. (2002) Groundwater quality monitoring - annual summary, 2001-02. (Environment Canterbury)
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Keywords: acidic, Aesthetic, annual surveys, drinking water quality, Drinking water standards, hydrocarbons, ions, iron, long term patterns, long term trend, manganese, MAV, Maximum Accepted Value, microorganism, monitoring, Nitrate, nitrates, pesticides, pH, saltwater intrusion, surveys, Water quality.
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Hanson, Carl R. (2002) Nitrate concentrations in Canterbury groundwater – a review of existing data. #ISBN 1-86937-457-6. (Environment Canterbury)
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Keywords: Environment Canterbury, Groundwater, Groundwater quality surveys, Land surface Activities, Long-term patterns, Long-term trends, Nitrate Nitrogen Concentrations, Seasonal Nitrate Fluctuations, Spatial Patterns, Wells.
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Close, M E, Pang, Liping, Stanton, G. (2002) Use of rhodamine WT with XAD-7 resin for determining groundwater flow paths. Hydrogeology Journal. Vol. 10. Page(s) 368-376.
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Keywords: absorption, alluvial gravel, Burnham, flow path, groundwater, groundwater, groundwater flow, groundwater flow paths, resin, rhodamine, tracer experiment.
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Aitchison-Earl, Philippa, Chater, Mandy, Dicker, Michael, Ettema, Marc, sanders, Russel, Scott, D M, Weeber, John. (2001) State of the Canterbury Region Water Resource, 1 October 2001. (Environment Canterbury)
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Keywords: annual, aquifers, Climate, climate projections, El Nino, groundwater, groundwater levels, groundwater recharge, hydrograph, rainfall, rainfall levels, recharge, river flows, river flows, soil Moisture, soil moisture deficit, soil moisture levels, state of water resources, temperature, trends.
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Facer, Suzanne. (2000) Interactions between the Streams and Groundwater in the Harts Creek and Birdlings Brook Catchments. (Environment Canterbury)
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Keywords: birdlings Brook, clarity, detoriating water quality, fish numbers, groundwater, groundwater Levels, harts Creek, hydrogeology, irrigation recharge, lake Ellesmere, piezometric survey, rainfall, rainfall recharge, springs, stream clarity, stream depletion effect, streambed conductance, summer flows, surface water flow, water abstraction, water quality.
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Little, Richard. (1997) Christchurch-West Melton Groundwater: Hydrogeology: volume 1 of 3. (Woodward-Clyde (NZ) Ltd, prepared for Canterbury Regional Council)
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Keywords: aquifer characteristics, aquifers, bromley formation, Burwood Aquifer, burwood gravel, Christchurch Formation, christchurch-West Melton aquifer system, formations, geological data, gravels, groundwater, groundwater abstraction, groundwater system, heathcote formation, hydrogeology, Linwood Aquifer, linwood gravel, resource consent, Riccarton Aquifer, riccarton gravel, shirley formation, Springston Formation aquifer, stratigraphy, Wainoni Aquifer, wainoni gravel.

Bowden, M J, Freeman, M, Mason, C, Talbot, John, Weeber, John, Wilson, D. (1986) The Christchurch Artesian Aquifers: A report prepared by the resources division of the North Canterbury Catchment Board and Regional Water Board. #ISBN 0-908764-05-7.
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Keywords: aquifer recharge, christchurch Aquifers, consent, groundwater, groundwater abstraction, groundwater quality, groundwater quantity, history, management, water take.