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Water Quantity in the Okanagan Basin

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Technical Supplement I describes and presents the results of water quantity studies as carried out under the Okanagan Basin Agreement, including the synthesis of all historical water quantity resource data into a summarized form. The results of studies concerning water quantity computer models and water quantity alternatives are covered separately in Technical Supplements II and III respectively. Supporting water quantity data tables for all three supplements (I,II,and III) are included in Technical Supplement III. Other Study publications are listed on the Inside front cover of this report.

Geographical Analysis of Cumulative Threats to Prairie Water Resources: Mapping water availability, water quality, and water use stresses

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Despite the vast abundance of freshwater available in Canada, human induced impacts and stresses combined with agricultural pressures and the effects of global climate changes have caused significant freshwater problems across the country. The objective of this study was to gain a watershed perspective on water vulnerability across the Canadian Prairie provinces, with a focus on water quality, water use, and water availability stresses and their compounding effects across the prairie agro-region. Water related stresses and issues combine to produce “hotspots” or areas of concern that are more prone to the combined effects of water related stress, and therefore have

The Biological Integrity of Okanagan Streams:

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The Okanagan’s ecosystems are coming under increasing pressure with the population growth and associated development currently experienced in the region. We sought a method of assessing the health of the Okanagan’s lowland streams, many of which are in or near urban areas. We chose to use benthic invertebrates as indicators of stream health.

1974 Okanagan Basin Study

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The Complete Canada-British Columbia Consultative Board study of water resource management in the Okanagan Basin is now available for the first time as online content.

Climate Change & Water Management in The Okanagan

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This is the final report of project A463/433 under the Climate Change Impacts and Adaptation Program (Natural Resources Canada) entitled, “Expanding the Dialogue on Climate Change and Water Management in the Okanagan Basin, British Columbia.” The research activity described in this report is a collaborative, interdisciplinary effort involving researchers from Environment Canada, Agriculture and Agri-Food Canada, the University of British Columbia, the BC Ministry of Water, Land and Air Protection and the District of Summerland. The goal of this study is to develop integrated climate change and water resource scenarios

Okanagan Basin Waterscape Poster

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The Okanagan Basin is our home, a very special place. It has been home to First Nations peoples for thousands of years, and to many others over the last century and a half. Water has always been the basin's most valuable resource for both humans and nature. Today, our economy, agriculture, home use, and recreation continue to share these waters with

B.C. Government Supports Okanagan Water Study

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VICTORIA – Provincial funding of $150,000 will help complete the three-year water supply and demand project for the Okanagan Basin, Environment Minister Barry Penner announced today. “Understanding both water supply and demand in key growth areas like the Okanagan is crucial to proper management decisions,” said Penner. “This funding will help complete the three-year project which will assist local water suppliers, planners and the people of the Okanagan Basin to better understand their water, and make wise choices for a sustainable future.”

Okanagan Water Supply & Demand Project

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How much water is available for human and environmental needs in the Okanagan? What should water suppliers expect from climate change and population growth? In 2007, the Okanagan Basin Water Board and BC Ministry of Environment, with many other partners, embarked on a large project to

Mountain Pine Beetle Impact on Watershed

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The mountain pine beetle (MPB) (Dendroctonus ponderosae Hopkins) could have a large effect on hydrologic regimes in BC watersheds. Given the recent increase in the size of beetle infestation, many questions around forest management, particularly salvage harvesting, have emerged. Unfortunately, information

Water Supply and Demand Project

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Water availability in the Okanagan Basin has been a long-standing issue, due to competing agricultural and industrial demands, rapid population growth and the Basin’s location in a semi-arid region. Numerous water supply studies have been conducted in the area, particularly over the past 3 decades. However, with the exception of the 1974 Okanagan Basin Study and the 1994 water supply study, (a limited update) none have been basin-wide in scope.

The Okanagan Basin

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The Okanagan Basin spans the communities of Osoyoos in the south to Armstrong in the north – incorporating most of the three Okanagan regional districts. Almost 200 km long and 21,600 km2 in area, the Okanagan watershed is approximately 2/3 the size of Vancouver Island.

Mayor Welcomes Reservoir Decision

The provincial government has placed a decision on Okanagan reservoir lake lots on hold for two Victoria has backed off any immediate plans to sell property around high-elevation reservoir lakes.years so consultation can take place with local communities and First Nations.

Groundwater Management Plans

This compiles a list of Domestic and International Groundwater Management Plans composed by regional Governements and authorities.

Global synthesis of groundwater recharge in semiarid and arid regions

Global synthesis of the findings from ~140 recharge study areas in semiarid and arid regions provides important information on recharge rates, controls, and processes, which are critical for sustainable water development. Water resource evaluation, dryland salinity assessment

Water an Abused Lifeblood of a Near-Desert Region

We’ve been pretty unconcerned about the water resource in the valley over the years. With a rapidly rising human population occurring in recent years, there have been some warnings—particularly during that drought of 2003 when Summerland declared a local state of emergency, banned the watering of lawns and gardens, and reduced agricultural irrigation by 20 per cent because its upland reservoirs were going dry.

Components of a Groundwater Management Plan

Managing groundwater to ensure a long-term sustainable and reliable, good quality water supply requires that local agencies implement a groundwater management program suitable to the political, legal, institutional, technical and economic opportunities and constraints that exist in their basin. This Water Fact lists components that should be considered for inclusion.

Running Dry


The economist
This article addresses challenges that corporations are going to have if world wide water supplies dwindle and the business implications of the potential scarcity.

7-Steps for Managing Groundwater Supplies

The amount of groundwater in storage in each basin is dependent on the precipitation, recharge and the total extraction of all the wells. A groundwater management plan that is designed for the political, institutional, legal and technical specifics of the basin can help everyone maintain the quality and quantity of the groundwater supply.

Okanagan Reservoir Lakes Decision on Hold

VICTORIA – The Province will not make a decision on recreational lot sales in the Okanagan reservoir lakes area until local elected officials and First Nations have been consulted and local communities have the opportunity to undertake hydrology studies.