Coordinating Water Resources in the Federal System: the Groundwater-Surface Water Connection

Total Page:16

File Type:pdf, Size:1020Kb

Coordinating Water Resources in the Federal System: the Groundwater-Surface Water Connection Members of the U.S. Advisory Commission on Intergovernmental Relations (October 1991) Private Citizens Daniel J. Elazar, Philadelphia, Pennsylvania Robert B. Hawkins, Jr., Chaimzn, San Francisco, California Mary Ellen Joyce, Arlington, Viginia Members of the U.S. Senate Daniel K. Akaka, Hawaii Dave Durenberger, Minnesota Charles S. Robb, Viginia Members of the U.S. Hour of Representatives Donald M. Payne, New Jersey Craig Tbow Wyoming Ted MUSS, New York Officers of the Executive Branch, U.S. Government Debra Rae Anderson, Deputy As&ant to the Resident, Director of Intergovernmental Affairs Samuel K. Skinner, Secretaq of Transportation vocaney Governors John Ashcroft, Missouri Booth Gardner, WAshington George A. Sinner, North Dakota Stan Stephens, Montana Mayors Victor II. Ashe, Knoxville Tbnnessee Robert M. Isaac$ colorado springs, Colorado Joseph A. Leafe, Norfolk, Viginia *f=Y Members of State Legislatures David E. Nething, North Dakota Senate Samuel B. Nuneq Jr., President, Louisiana Senate Ted L. Strickbmd, Colorado Senate Elected County Offkials Ann Klinger, Merced County, California, Board of Supervisors James J. Snyder, Cattaraugus County, New York, County Legislature D. Michael Stewart, Salt Lake County, Utah, County Commission Coordinating Water Resources in the Federal System: The Groundwater-Surface Water Connection U.S. Advisory Commission on Intergovernmental Relations October 1991 l A-l 18 U.S. Advisory Commission on Intergovernmental Relations 800 K Street, NW South Building Suite 450 Washington, DC 20575 (202) 6533640 FAX (202) 653-5429 ii U.S. Advisory Commission on Intergovernmental Relations Executive Summary Groundwater appears in basins throughout the Management is defined in terms of functions,not United States. It serves half of the nation’s population in terms of the types of organizations that perform with drinking water and provides significant those functions, thereby recognizing that multiple amounts of the water used for irrigation, livestock, organizational and interorganizational forms maybe and industry. In addition to being an important effective. The functions of conjunctive management source of water supply, groundwater basins are also are: control of overdraft, which in turn involves sources of storage capacity In fact, underground limitations on water withdrawals and assuring suffi- storage has greater capacity than surface storage and cient replenishment regulation of storage capacity; is more desirable in several respects. protection of water quality from degradation result- The value of groundwater basins as sources of ing from management practices; the assignment of water supply and storage has been increasing for management costs; and maintaining adaptability several reasons: (1) increasing water use; (2) greater and error correction capabilities. past development of surface water supplies; (3) Most planned conjunctive management com- increasing concerns about water quality; (4) needs for bines public and private institutions to coordinate the protection of instream flows of surface streams; and conjunctive use of surface and groundwatersupplies. (5) increasing reliance on groundwater supplies for Debates over the proper models of organization- the more highly consumptive uses of water privatization versus centralized public authority- A crucial factor in the determination of the value overlook the experience of groundwater manage- of groundwater supplies-and, hence, the perceived ment and the desirability of a noncentralized, need for improved management - is the very uneven public-private management setting. This helps to distribution of supplies and use, even within regions. define and represent different communities of inter- Groundwater availability and types of basins also est, with real advantages in conjunctive manage- vary throughout the country As a result, most ground- ment, particularly for enhancing efficiency and water management has been initiated by state and equity while maintaining adaptability. local governments, despite increased calls for active The United States has a complex and regulated federal management water economy, involving provider and producer In many cases, state and local governments have organizations (importers, wholesalers, retailers, pursued conjunctive management of groundwater and regulators). This complex water economy in- supplies together with available surface water sup- volves hundreds of thousands of organizations and plies Conjunctive management-the coordination interorganizational relationships, which can be of conjunctive use - exploits the different characteris- understood using the organizing concepts of our tics of surface and groundwater, and coordinates use mixed political economy. and storage so as to increase the total water yield over Conjunctive management calls for the coordinated time; increase reliability of water supply; reduce risks use of surface and groundwater supplies This does not of total loss of supply from quality degradations; and necessarily mquiie organizational integration The lar- lower the costs of construction, transmission, distribu- ge+cale physical facilities and capital investments tion, and maintenance. Conjunctive management required for surface water development call for a (managing surface and groundwater supplies togeth- different scale of organization than groundwater devel- er) is distinguished from integrated management opment This is demonstrated by the fact that most small (managing groundwater supplies and groundwater water systems rely on gnnmdwater while the very large quality together). systems mly primarily on surface water U.S. Advisory Commission on Intergovernmental Relations iii Coordination is achieved through a variety of organized as much to seek state and federal water interorganizational arrangements, including con- subsidies as to improve management The subsidiza- tracting. Dispute resolution also is achieved by sever- tion game, whereby local beneficiaries attempt to al means, including negotiating., bargaining and spread costs to the residents of larger jurisdictions, has adjudication. Special districts frequently have been encouraged the overuSe of cheap water supplies and established because their jurisdictional boundaries inhibited improved management can be adjusted to communities of interest, because The federal government has considered several their separate existence increases their financial groundwater management initiatives during the past autonomy, and because they can act as functional decade. Most of these are mandates and conditions of specialist organizations. federal assistance to state and local governments, State and local initiatives to improve manage- despite the fact that the scope of direct federal action ment of groundwater supplies range from central- was expanded by the Supreme Court’s ruling that ized administration of state statutes to local special groundwater is an article of interstate commerce district operations without statewide authority, and (Sporltnse v. Nebmskn, 1982). Mandates and conditions also include interstate and interlocal cooperation and may inhibit innovations. In particular, conditioning coordination. It is impossible to distill a model for financial assistance for water projects on federal state or local groundwater supply management from approval of state or local groundwater management among the many options. programs is likely to be counterproductive if an Nevertheless, important barriers to more effec- approved project develops subsidized and under- tive conjunctive management remain. Most of these priced water supplies barriers are institutional, having to do with the rules Some pending federal action would help to governing behavior and the incentives facing water remove barriers to effective groundwater manage- users. Many states’ water rights rules inefficiently tie ment Increased research, especially on institutional water rights to land ownership, leave water rights arrangements, appropriately organized on a national unquantified, generate disincentives to conserve scale, aids state and local decisionmakers in devising water supplies and to use underground storage, and and implementing effective programs. Increased inhibit transfers of water rights from lower valued to information sharing programs among state and local higher valued uses. Federal laws have created un- governments would also improve the base for man- specified “reserved water rights,” generating addi- agement decisions. tional uncertainties for state and local decision- This report concludes with a set of recommenda- makers. More effective management requires water tions for federal, state, and local contributions to the rights characterized by certainty and flexibility. Most improved management of groundwater supplies. existing systems impose obstacles to both. The recommendations do not include the develop- The continued underpricing of water, whether as ment of additional water supplies, but emphasize a result of local pricing practices, state and federal improving the institutional arrangements for allocat- subsidies, or both, reduces incentives to use water ing, managing, and protecting groundwater supplies conservatively. In many cases, local water users have in a federal system. iv U.S. Advisory Commission on Intergovernmental Relations Preface Water supply and water quality emerged as that a federal system such as ours in fact has great important issues during the 1970s. Early in the 198Os, organizing and coordinating strengths. former
Recommended publications
  • Chapter 11. Water Resources Element
    Humboldt County General Plan Planning Commission Approved Draft Chapter 11. Water Resources Element 11.1 Purpose This Element addresses water planning issues including river and stream water quality, stormwater runoff, groundwater management, water needs of fish and wildlife, water consumption, conservation and re-use methods, and state and federal regulations. 11.2 Relationship to Other Elements These and other water-related topics can be found throughout the General Plan. Water availability for development is addressed in the Land Use Element. The Conservation and Open Space elements address riparian corridors, wetlands, wildlife protection, fishery resources, other biotic resources, water-oriented recreation, and soil erosion. The Community Infrastructure and Services Element addresses public water and wastewater systems. 11.3 Background Surface and Groundwater Abundant water resources Large rivers and biologically rich watersheds are defining characteristics of Humboldt County. These resources provide local water supply, spawning habitat for fisheries, recreation opportunities, and local wealth for the fishing and tourism industries. The Eel, Trinity, and Klamath rivers extend well beyond county borders linking Humboldt to the complex regional, state, and interstate water resource and habitat management issues affecting their respective watersheds. The average annual runoff of the rivers running through the county reflects almost 30% of the state’s total runoff. Significant sections of these rivers and the Van Duzen River have been designated by the California legislature as wild, scenic, or recreational under the California Wild and Scenic River System. North Coast watersheds retain some of the last viable salmon and steelhead populations in the state and are a focal point for regional, state, federal, and tribal habitat recovery efforts.
    [Show full text]
  • BIOSPHERE SMART AGRICULTURE in a TRUE COST ECONOMY TRUE COST of FOOD and AGRICULTURE INDEX L Amount of Soil Lost Worldwide, According to the U.N
    POLICY RECOMMENDATIONS TO THE WORLD BANK BIOSPHERE SMART AGRICULTURE IN A TRUE COST ECONOMY TRUE COST OF FOOD AND AGRICULTURE INDEX l Amount of soil lost worldwide, according to the U.N. Food and Agriculture Organization (FAO): 75 billion tons l Approximate annual economic cost of that lost soil: US $ 400 billion, or about US $ 70 per person, per year (FAO) l Approximate percentage of the world’s population that is now overweight or obese, according to the McKinsey Global Institute: 30 percent l Estimated global economic impact related to the health costs of that nutritional crisis: US$2 trillion annually, or 2.8 percent of global GDP l Percentage of the Earth’s freshwater resources now diverted for agriculture: 70 percent l Number of major underground water reservoirs designated as beyond “sustainability tipping points” according to researchers at the University of California at Irvine: 21 of 37 l Number of impacted marine and riverine ecosystems known as Dead Zones due to excess nutrients greatly affected by agriculutral production: 400 l Probability that the planet will warm by 4 degrees Celsius (7.2 degrees Fahrenheit) by the end of the century according to the World Bank: at least 40 percent l Estimated amount that crop yields are projected to decrease if temperatures rise above 2 degress C: 15 to 20 percent (WB) l Percentage of people in low-income countries who work in agriculture: 60% (WB) l Estimated health costs of global pesticide applications, a problem barely studied: US$1.1 billion per year. (Pesticide Action Network) l Estimated amount of global food production classified as food waste: 30 to 40 percent l Estimated global costs of food waste when environmental and social impacts are included according to Food Wastage Footprint: US$2.6 trillion per year 2 POLICY RECOMMENDATIONS TO THE WORLD BANK - zxzxzxzxzxzxzxzxzxzxzx BIOSPHERE SMART AGRICULTURE IN A TRUE COST ECONOMY September 2015, Washington DC, Our findings and recommendations are relatively simple, yet profound.
    [Show full text]
  • CHAPTER 13 Groundwater Collective Management Systems: the United States Experience
    13-Smith.qxd 02-10-2002 19:59 Pagina 257 CHAPTER 13 Groundwater collective management systems: the United States experience Z.A. Smith Northern Arizona University, Flagstaff, Arizona, USA [email protected] ABSTRACT: Groundwater management in the USA is diverse and decentralized making generaliza- tions sometimes difficult. In many areas groundwater is managed well under permit systems that pre- vent wasteful overuse and allow planned development. In other areas individuals are free to pump water with few restrictions and sometimes with wasteful consequences. This chapter provides an overview of collective groundwater management systems used in the USA by summarizing the types of systems in place and the advantages and disadvantages of each system. It concludes with an exam- ination of what can be learned from the groundwater management experience in the USA and sug- gestions for the development of future groundwater management systems. 1 INTRODUCTION others very little groundwater is used (Table 1 gives a state-by-state breakdown of groundwater The rules governing groundwater use in much of use). the USA and the world bring to mind the state- ment in Plato’s Republic “I declare justice is 1.2 Role of the national government nothing but the advantage of the stronger”. Is this how things should be? In much of the USA To examine in a comprehensive manner the and the rest of the world this is how it is. In this experience of managing groundwater in the chapter we will examine the experience of the USA is a daunting task. The first thing that one USA in the collective cooperation and manage- must understand is that there is no national ment of groundwater resources.
    [Show full text]
  • Water Resources Compared
    Water Resources Overview The goals of the Water Resources Chapter are listed below: - Protect the water supply from pollution and encroachment of developments. - Provide an adequate and safe drinking water supply to serve the existing and future residents of the City of Frederick. - Provide an adequate capacity of wastewater treatment with effluent meeting all necessary regulatory requirements for existing and future residents of the City. - Restore and protect water quality and contribute toward meeting the water qualityby striving to meet or exceed regulatory requirements. for water quality. This will require addressinginclude current water quality impacts as well as future impacts from land development and population growth. - Develop adequate stormwater management. - Protect the habitat value of the local and regional rivers and streams. - Efficiently use public dollars for infrastructure that ensures sustainable, safe, and adequate supply of water for all residents. The City is committed to ensuring water and wastewater (sewer) capacity for both existing and new developments andwhile minimizing the negative impacts of stormwater runoff. In 2002, the City established the Water and Sewer Allocation System to make certain that adequate treatment capacity for potable water and wastewater is in place for new growth prior to approval. In 2012, Ordinance G-12-13 was adopted which updated the allocation process and combined it with it the Impact Fees payable for water and sewer service. The City adopted an Adequate Public Facilities Ordinance (APFO) in 2007 that allows development to proceed only after it has been demonstrated that sufficient infrastructure exists or will be created in the water and wastewater systems.
    [Show full text]
  • A Thesis Submitted to the Department of Environmental Sciences And
    A thesis submitted to the Department of Environmental Sciences and Policy of Central European University in part fulfilment of the Degree of Master of Science AN ANALYSIS ON SYNERGIC EFFORTS ON ENVIRONMENTAL SUSTAINABILITY AND POVERTY ALLEVIATION TOWARDS ACHIEVING MILLENNIUM DEVELOPMENT GOALS IN NEPAL CEU eTD Collection arjun DHAKAL July, 2007 Budapest Notes on copyright and the ownership of intellectual property rights: (1) Copyright in text of this thesis rests with the Author. Copies (by any process) either in full, or of extracts, may be made only in accordance with instructions given by the Author and lodged in the Central European University Library. Details may be obtained from the Librarian. This page must form part of any such copies made. Further copies (by any process) of copies made in accordance with such instructions may not be made without the permission (in writing) of the Author. (2) The ownership of any intellectual property rights which may be described in this thesis is vested in the Central European University, subject to any prior agreement to the contrary, and may not be made available for use by third parties without the written permission of the University, which will prescribe the terms and conditions of any such agreement. (3) For bibliographic and reference purposes this thesis should be referred to as: Dhakal, A. 2007. An analysis on synergic efforts on environmental sustainability and poverty alleviation towards achieving Millennium Development Goals in Nepal. Master of Science thesis, Department of Environmental Sciences and Policy, Central European University, Budapest. Further information on the conditions under which disclosures and exploitation may take place is available from the Head of the Department of Environmental Sciences and Policy, Central European University.
    [Show full text]
  • Policy Brief POLICY BRIEF February 2018
    TERI Policy Brief POLICY BRIEF FEBRUARY 2018 The Energy and Resources Institute Measures to Control Air Pollution in Urban Centres of India: Policy and Institutional framework Background and Objective Many Indian cities including New Delhi are included in the list of most polluted cities in the world (WHO 2014, Cheng et al. 2016). About 80 per cent of cities in India violate the prescribed standards of ambient air CONTENTS quality (CPCB 2014). Multiple sources contribute to the problem and, hence, sector-specific strategies are required for control of air quality. • Background and Objective 1 This policy brief aims to analyse the whole issue in terms of key drivers, • Drivers of Air Pollution 1 such as rapid urbanization, transportation, industrialization, power • Growth of Pollutant Emissions in generation, and agricultural activities, that subsequently lead to air India 2 pollution at different scales in India. These drivers lead to generation • Impacts of Air Pollution in India 2 of pressures on the air quality through release of pollutants. The brief • Urban Air Pollution Source assesses the contribution of different sources of emission and pollutant Apportionment Studies 4 concentrations at urban and national scales and the impact on human • Strategies for Control of Air health and other important receptors and discusses the key measures Pollution in Urban Centres 4 required for improvement of air quality in urban centres of India. • Conclusions 18 Drivers of Air Pollution Authors Urbanization, transportation, industrialization, power generation, and Sumit Sharma, Fellow agricultural activities are the key drivers that lead to air pollution through Jai Malik, Research Associate release of emissions.
    [Show full text]
  • Overdrafting Toward Disaster: a Call for Local Groundwater Management Reform in California’S Central Valley
    Comments Overdrafting Toward Disaster: A Call for Local Groundwater Management Reform in California’s Central Valley By PHILIP LAIRD* Introduction MY GRANDFATHER has been a farmer all of his life. He has grown raisins in Selma, California for over seventy years. Like most crops, raisins need good soil, sunshine, and a steady flow of water. Without any one of these elements, the vines will die, and the crop will be a loss. Water, as one can imagine, ends up being the most problematic resource. There are no rivers or canals that run by my grandfather’s property. Thus in order to nourish his vineyard and make the vines grow, he has to pump groundwater. My grandfather first began using his pump in the 1930s. At that time, the well he used only had to extend down eighteen feet to reach the water table and provide suffi- cient water to his ranch. As the years went by though, the water table dropped, and he had to spend more and more money digging deeper wells and pumping from greater depths. Today, in order to reach the water table, my grandfather’s well is ninety feet deep. This story is not unique to my grandfather. The water table throughout California is dropping at an alarming rate, and thus far, efforts to seriously curb this depletion are minimal at best. Currently, groundwater in California provides approximately 30% of the state’s * J.D. Candidate, University of San Francisco School of Law (2013); B.A. English Language Literature, University of California, Santa Cruz (2010). The author would like to thank Professor Richard Roos-Collins for his patience, wisdom, and guidance in overseeing the development of this Comment.
    [Show full text]
  • Questions About Texas Groundwater Conservation Districts
    Questions about Texas Groundwater Conservation Districts Bruce Lesikar Associate Professor and Extension Agricultural Engineering Specialist Department of Biological and Agricultural Engineering Ronald Kaiser Professor, Institute of Renewable Natural Resources and Department of Recreation, Parks and Tourism Science Valeen Silvy Program Coordinator, Texas Water Resources Institute All of The Texas A&M University System Contributing editors Kelly Mills, Texas Commission on Environmental Quality Harvey Everheart, Texas Alliance of Groundwater Districts Trey Powers, Texas Department of Agriculture Cindy Loeffler, Texas Parks and Wildlife Department Richard Preston, Texas Water Development Board Disclaimer The purpose of this publication is to present useful information about Texas groundwater law and groundwater conservation dis- tricts. It is not intended to furnish specific legal advice, or to ren- der a legal opinion. If you are seeking specific legal advice, please consult with an attorney. Contents 1 Introduction 1 Water use in Texas 2 Groundwater 2 Surface water 5 Movement of groundwater in aquifers 5 Are all Texas aquifers alike? 5 How much water do Texas aquifers provide each year? 6 How does water get into an aquifer? How is an aquifer replenished? 7 Does water discharge from an aquifer naturally? 7 If aquifers recharge, why is there a problem with pumping? 7 What is a cone of depression? 7 What is well interference? 8 What is aquifer overdrafting or mining? 9 Texas water law 9 What rights do landowners have to use groundwater? 9
    [Show full text]
  • 'Drought-Free' Maharashtra? Politicising Water Conservation for Rain-Dependent Agriculture
    www.water-alternatives.org Volume 14 | Issue 2 Shah, S.H.; Harris, L.M.; Johnson, M.S. and Wittman, H. 2021. A 'drought-free' Maharashtra? Politicising water conservation for rain-dependent agriculture. Water Alternatives 14(2): 573-596 A 'Drought-Free' Maharashtra? Politicising Water Conservation for Rain-Dependent Agriculture Sameer H. Shah Institute for Resources, Environment & Sustainability (IRES), The University of British Columbia, Vancouver, Canada; [email protected] Leila M. Harris Institute for Resources, Environment & Sustainability (IRES) and the Institute for Gender, Race, Sexuality and Social Justice (GRSJ), The University of British Columbia, Vancouver, Canada; [email protected] Mark S. Johnson Institute for Resources, Environment & Sustainability (IRES) and the Department of Earth, Ocean & Atmospheric Sciences, The University of British Columbia, Vancouver, Canada; [email protected] Hannah Wittman Institute for Resources, Environment & Sustainability (IRES) and the Centre for Sustainable Food Systems, The University of British Columbia, Vancouver, Canada; [email protected] ABSTRACT: Soil moisture conservation ('green water') and runoff capture ('blue water') can reduce agricultural risks to rainfall variation. However, little is known about how such conjoined initiatives articulate with social inequity when up-scaled into formal government programmes. In 2014, the Government of Maharashtra institutionalised an integrative green-blue water conservation campaign to make 5000 new villages drought-free each year (2015- 2019). This paper analyses the extent to which the campaign, Jalyukt Shivar Abhiyan, enhanced the capture, equity, and sustainability of water for agricultural risk reduction. We find government interests to demonstrate villages as 'drought-free' affected the character and implementation of this integrative campaign.
    [Show full text]
  • RESEARCH EDITORIAL Advancing Water Resource Management in Agricultural, Rural, and Urbanizing Watersheds
    RESEARCH EDITORIAL ment of Engineering Professional Development doi:10.2489/jswc.68.4.337 at the University of Wisconsin-Madison, Madison, Wisconsin; Carl Evensen is a specialist in the De- partment of Natural Resources and Environmental Management at the University of Hawaii, Hono- lulu, Hawaii; Kitt Farrell-Poe is a water quality Advancing water resource management extension specialist and professor in the Agricul- tural and Biosystems Engineering Department at in agricultural, rural, and urbanizing the University of Arizona, Tucson, Arizona; Cass Gardner is a professor at Florida A&M University, watersheds: Why land-grant Tallahassee, Florida; Wendy Graham is the Carl S. Swisher eminent scholar in Water Resources in the Department of Agricultural and Biological universities matter Engineering at the University of Florida and di- rector of the University of Florida Water Institute, A.J. Gold, D. Parker, R.M. Waskom, J. Dobrowolski, M. O’Neill, P.M. Groffman, K. Addy, M. Barber, Gainesville, Florida; Joe Harrison is an animal S. Batie, B. Benham, M. Bianchi, T. Blewett, C. Evensen, K. Farrell-Poe, C. Gardner, W. Graham, scientist and extension specialist at Washington J. Harrison, T. Harter, J. Kushner, R. Lowrance, J. Lund, R. Mahler, M. McClaran, M. McFarland, State University, Pullman, Washington; Thomas Copyright © 2013 Soil and Water Conservation Society. All rights reserved. D. Osmond, J. Pritchett, L. Prokopy, C. Rock, A. Shober, M. Silitonga, D. Swackhamer, J. Thurston, Harter is an extension groundwater hydrologist at Journal of Soil and Water Conservation D. Todey, R. Turco, G. Vellidis, and L. Wright Morton the University of California Davis, Davis, Califor- nia; Jennifer Kushner is an evaluation specialist at the University of Wisconsin-Madison, Madison, Federally funded university water pro- safety, agricultural water use, and groundwa- Wisconsin; Richard Lowrance is a research ecol- grams have had limited success in halting ter management.
    [Show full text]
  • Optimization of Groundwater Remediation Strategies in Aquifers Affected by Slow Desorption Processes
    Optimization of Groundwater Remediation Strategies in Aquifers Affected by Slow Desorption Processes By Thomas C. Harmon, William W-G. Yeh Dung Kong, Jose A. Saez and Yung-Hsin Sun Department of Civil and Environmental Engineering University of California, Los Angeles Los Angeles, CA 90095-1593 TECHNICAL COMPLETION REPORT Project Number UCAL-WRC-W-81S September, 1996 University of California Water Resources Center ,...:<) c; (), 'i '_.',,,\"~' i 'V!-~S The research leading to this report was supported jointly by the National Water Research Institute and by the University of California, Water Resources Center, as part of Water Resources Center Project UCAL-WRC-W-81S. , W') L- - ( IIV) Of (~" .r .~. , ~ ~"-) Optimization of Groundwater Remediation Strategies in Aquifers Affected by Slow Desorption Processes TABLE OF CONTENTS LIST OF FIGURES iii ABSTRACT iv 1. PROBLEM AND RESEARCH OBJECTIVES 1 2. METHODOLOGy 2 2.1 Flow and Transport Model Formulation 3 2.2 Numerical Method 3 2.3 Simulated Domain 4 2.4 Moment Analysis 7 2.5 Remediation Management Model 8 2.5.1 Background 8 2.5.2 Management Algorithm 9 3. PRINCIPLE FINDINGS AND SIGNIFICANCE 12 3.1 Simulated Spatial Distributions 12 3.2 Simulated Mass Recovery 13 3.3 Moment Analysis 14 3.4 Two Phase Pumping Scheme 14 3.6 Optimal Management of Two Phase Pumping 15 4. CONCLUSIONS AND RECOMMENDATIONS 16 5. SUMMARY 18 6. Ph.D. DISSERTATIONS 19 7. SOURCES CONSULTED 19 11 LIST OF FIGURES Figure Caption Page Figure 1 Computational domains, parameter zonation and 23 extraction well location for heterogeneous and homogeneous cases. Figure 2 Heterogeneous domain simulated mobile zone 24 concentrations lines under (a) 20 year source term under natural-gradient flow conditions for 20 years mobile zone concentrations, and (b) 20 years forced gradient flow conditions.
    [Show full text]
  • Ecology: Biodiversity and Natural Resources Part 1
    CK-12 FOUNDATION Ecology: Biodiversity and Natural Resources Part 1 Akre CK-12 Foundation is a non-profit organization with a mission to reduce the cost of textbook materials for the K-12 market both in the U.S. and worldwide. Using an open-content, web-based collaborative model termed the “FlexBook,” CK-12 intends to pioneer the generation and distribution of high-quality educational content that will serve both as core text as well as provide an adaptive environment for learning. Copyright © 2010 CK-12 Foundation, www.ck12.org Except as otherwise noted, all CK-12 Content (including CK-12 Curriculum Material) is made available to Users in accordance with the Creative Commons Attribution/Non-Commercial/Share Alike 3.0 Un- ported (CC-by-NC-SA) License (http://creativecommons.org/licenses/by-nc-sa/3.0/), as amended and updated by Creative Commons from time to time (the “CC License”), which is incorporated herein by this reference. Specific details can be found at http://about.ck12.org/terms. Printed: October 11, 2010 Author Barbara Akre Contributor Jean Battinieri i www.ck12.org Contents 1 Ecology: Biodiversity and Natural Resources Part 1 1 1.1 Lesson 18.1: The Biodiversity Crisis ............................... 1 1.2 Lesson 18.2: Natural Resources .................................. 32 2 Ecology: Biodiversity and Natural Resources Part I 49 2.1 Chapter 18: Ecology and Human Actions ............................ 49 2.2 Lesson 18.1: The Biodiversity Crisis ............................... 49 2.3 Lesson 18.2: Natural Resources .................................. 53 www.ck12.org ii Chapter 1 Ecology: Biodiversity and Natural Resources Part 1 1.1 Lesson 18.1: The Biodiversity Crisis Lesson Objectives • Compare humans to other species in terms of resource needs and use, and ecosystem service benefits and effects.
    [Show full text]