View
120
Download
1
Category
Tags:
Preview:
DESCRIPTION
A PowerPoint presentation by Luiz Amore delivered during GEF Third Biennial International Waters Conference last June 21, 2005. Topics presented in the slides are as follows: (1)Main characteristics of Guarani Aquifer System, (2)Uses of Guarani System, (3)Project Rationale and Objective, (4)Project Components and Expected Results, (5) Key technical issues to be addressed by this project, (6) Guarani Aquifer System Region: Institutional Background, (7)Technical Base to Groundwater Management, (8)Groundwater Management Requirements, (9)Guarani Aquifer TDA basic framework, (10)Elements for the Development of the Institutional Base, (11) Achievements and Lessons Learned
Citation preview
The Guarani Aquifer Project: Lessons learnt to an aquifer
management system
The Guarani Aquifer Project: Lessons learnt to an aquifer
management system
Luiz AmoreGEF Third Biennial International
Waters Conference.June, 21st of 2005
GEF / WB / OASGEF / WB / OAS
GUARANI AQUIFER SYSTEM
Area: 1.2 million km2
Population: 30 million
Reserves: 40,000 – 150,000 km3
Recharge: 40 – 60 km3/year
Depth: 0 to -1800 m
Thickness: 250 m
Temperature: 33C - 85C
Guarani Aquifer System:Guarani Aquifer System: Main CharacteristicsMain Characteristics
Discharge
Guarani
Plata
BasaltGuarani
Recharge
urban supply
70%
industrial20%
recreation5%
rural5%
Uses of Guarani System
Usage: 2-4 km3/year (63 to 127 m3/s)Number of wells: 2600+ (500 cities)
GUARANI AQUIFER SYSTEM
Outcrops Fm. Serra Geral.
Ac. Guaraní (Fm. Botucatu)
GUARANI AQUIFER SYSTEM
Outcrops Fm. Serra Geral
Project Rationale and Objective
Project Rationale and Objective
Rationale for intervention
Growing use and increasing demand
Signs of scarcity and pollution in transboundary and national Hot Spots
Need to account for groundwater in water resource planning and management
Prevention is less expensive
Objective
Support Argentina, Brazil, Paraguay and Uruguay to jointly elaborate and implement a coordinated institutional framework for managing the transboundary Guarani Aquifer System for current and future generations.
GUARANI AQUIFER SYSTEM
Project components and expected results
Components I. Improve knowledge base
on GuaraniII. Guarani management
frameworkIII. Participation, education &
communicationIV. Monitoring and
dissemination of resultsV. Pilot projects in identified
Hot SpotsVI. Assessment of geothermal
energy, and VII. Project coordination.
Main Outcomesa) Multi-country
agreement on institutional and technical framework
b) Functioning information system and monitoring network
c) Transboundary Diagnostic Analysis
d) Strategic Action Program
e) Joint legal framework proposal
GUARANI AQUIFER SYSTEM
important use and investigations
Hot Spot Ribeirão Preto
GUARANI AQUIFER SYSTEM
Ref. Guido Blöcher
Concordia / Salto Hot Spot
termal usetermal use
GUARANI AQUIFER SYSTEM
Rivera / Santana do Livramento Hot Spot
urbanized recharge areaurbanized recharge area
GUARANI AQUIFER SYSTEM
Itapúa Hot Spot - Paraguay
deforestation and adeforestation and agricultural usegricultural use
GUARANI AQUIFER SYSTEM
Key Technical issues to be addressed by the project
Identify flux and architecture of the aquifer
Determines provincial, municipal & local governments role
Identify areas of recharge and discharge
Prepare strategic action plan to prevent resource pollution and over exploitation
Quantify recharge and discharge and flow behavior
Establish quantitative targets to prevent over exploitation and landscape management practices
Evaluate geo-thermal potential Integrate groundwater into energy plan for the region
Assess vulnerability and risk Introduce risk mitigation and vulnerability reduction measures
Determine water balance at the Guarani
Promote integrated water resource management
GUARANI AQUIFER SYSTEM
Argentina Decision making authority over water lies in provinces Existence of provincial laws on water resources (thermalism under
discussion) Limited information: 9 deep wells, undefined Guarani western border
Brazil Decision making authority over groundwater lies in states Mineral, thermal and water bottling use governed by federal concession
regime National policy and state laws on water resources and groundwater (GW
commitee and CNRH acts) Considerable but dispersed information on groundwater (500 cities partially
or entirely supplied by the Guarani)
Paraguay Unitary State Water resources law under discussion Limited information available more than 200 wells mainly for domestic supply
Uruguay Unitary State Existence of water law and decrees related to thermal uses Considerable information available 135 wells for public water supply, irrigation and thermal tourism
Guarani Aquifer System Region: Institutional Background
Technical Base to Groundwater Technical Base to Groundwater ManagementManagement
Characterization of geo hydrodynamic parameters, quality, level and flow of groundwater
Identification of the recharge and discharge areas and compartments of the aquifer system
Development of mathematical models of geo hydrodynamic behavior and risk analysis (vulnerability and potential pollutant on local and regional scale)
Structuring of a network and an information system integrating groundwater date base (quantity and quality parameters, constructive aspects of wells, use and protection)
GUARANI AQUIFER SYSTEM
Groundwater Management Groundwater Management RequirementsRequirementsImplement and support monitoring network and an
Information System with all data related to exploitation; Users database and public access to them;Increase the resource knowledge; Define priorities for exploitation and increase efficiency in a planned development policies framework;Define and to authorize maximum flow for exploitation and levels;Define and authorize location and distance between wells; Decide on new wells construction; Protect the environment, decreasing the impact of well construction and improving a convenient waste water disposal; Define protection perimeter and different exploitation areas;Promote training, education and diffusion about hydrological topics at different levels.
GUARANI AQUIFER SYSTEM
The project will support policy makers The project will support policy makers on:on:
Formulating and harmonizing of riparian legal, technical and institutional arrangements
Mainstreaming best practices in groundwater management into each country’s development agenda
Establishing interactions between management of surface and groundwater under different aquifer conditions
The establishment of local management and planning, especially at transboundary (hot spot) areas
GUARANI AQUIFER SYSTEM
Guarani Aquifer TDA basic frameworkGuarani Aquifer TDA basic framework c ACTUAL & POTENTIAL SITUATIONS
WITH LOCAL TRANSBOUNDARY EFFECTS
POSSIBLE SITUATIONS WITH SIGNIFICANT IMPACTS AT
CATCHMENT SCALE evaluation of incidence/ control of
natural groundwater contamination (F, U, Rd, Rn) affecting use for potable water supply
contamination of potable waterwells
due to inadequate urban sanitation and uncontrolled urban land-use
definition of strategies for efficient groundwater resource development and sustainable management
assessment of aquifer pollution
vulnerability and appropriate protection measures for aquifer recharge areas
wetland impact and river baseflow reduction as a consequence of potential intensive groundwater resource development for agricultural irrigation
deterioration in the quality and rate of aquifer recharge as a result of extensive changes in agricultural land use and crop cultivation
the adjacent problems could grow if regional agricultural policies and markets favour the intensive and extensive use of local soils and/or groundwater resources -- but only if current field investigations confirm (a) the present ecological role of aquifer discharge and (b) the hydraulic continuity of the aquifer system in the corresponding areas
evaluation of economic and efficient options for the use of the aquifer’s geothermal resources
reductions in the artesian and geothermal characteristics of the aquifer due to uncontrolled exploitation by geothermal wells
APPROPRIATE LEVEL OF RESOLUTION
SAG-PS and CSDP in service of the national and state organizations
involved
SAG-PS through intervention of CSDP with the countries and local
institutions involved
CSDP in consultation with supra-national organizations and with
support of the SAG-PS
GUARANI AQUIFER SYSTEM
Elements for the Development of the Elements for the Development of the Institutional BaseInstitutional Base
REGIONAL INTEGRATIONSupport the integration of development and
protection policies for the aquifer in the countries
STATE / NATIONAL REGULATION
Development of the basics for the management of the
groundwater and possible integration with surface waters
LOCAL MANAGEMENTIntegration of the
hydric management policies and use of
the urban / rural land
GUARANI AQUIFER SYSTEM
University Fund under execution (until Oct 2005) Citizenship Fund under execution (until 2006) Created forums for dialogue Pilot local support committees and initial action
plans under implementation Main technical studies launched (transparency) Multi country project management system under
operation
TDA/SAP process under preparation (transition to the management phase)
Qualification program launched to support GW involved institutions
Achievements to date…
GUARANI AQUIFER SYSTEM
Project of declaration of basics principles and action guidelines for the Guarani Aquifer System is being discussed in an Ad-Hoc Group of the Mercosur (since July 2004)
Strengthened commitment to jointly develop the Guarani (e.g. SC, NCs, GS-GAS, political support from national agencies…)
Improvement of knowledge and participation of users and policymakers alike
Engaged Universities and NGOs Garnered international interest
Achievements to date.GUARANI AQUIFER SYSTEM
Managing transboundary groundwater has unique complexities: difficult to visualize common issues, different legal/institutional frameworks, international sensitivities
Groundwater has to be focused to make possible the overall water resource management at each level: local, sub national, national and regional
Management of groundwater requires strong cross-sector collaboration and cooperation among national and sub-national governments and other different Organizations
Strategic communication is needed early in project preparation
Garner support at local level – i.e. local coordinators at Hot Spots
Transparency, adequate financial resources and timing are critical elements in building participatory process..create constituency..keep momentum
Lessons LearnedGUARANI AQUIFER SYSTEM
Challenges – Looking ahead
Provide a catalytic input to the establishment of a framework for an integrated water resources management in the countries
Ensure the financial and technical sustainability of the monitoring and evaluation systems to be established by the project
Assist governments in harmonizing rules and regulations at country level that govern the sustainable management of the Guarani
Maintain the framework and best practices to be developed under the project in support of transboundary management of groundwater, including conflict resolution, at local level
Independently of institutional arrangements GW management will depends on the aquifer body approach (coordinated system)
GUARANI AQUIFER SYSTEM
Thank you
www.sg-guarani.orgwww.sg-guarani.org
GUARANI AQUIFER SYSTEM
Recommended