WATER AND SEWERAGE AUTHORITY “Water Security in · PDF filewater and sewerage authority...
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WATER AND SEWERAGE AUTHORITY “Water Security in Every Sector” WATER WATER WATER WATER RESOURCES RESOURCES RESOURCES RESOURCES ASSESSMENT OF ASSESSMENT OF ASSESSMENT OF ASSESSMENT OF TRINIDAD AND TRINIDAD AND TRINIDAD AND TRINIDAD AND TOBAGO TOBAGO TOBAGO TOBAGO WATER RESOURCES AGENCY WATER RESOURCES AGENCY WATER RESOURCES AGENCY WATER RESOURCES AGENCY
Transcript of WATER AND SEWERAGE AUTHORITY “Water Security in · PDF filewater and sewerage authority...
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
WATER WATER WATER WATER
RESOURCES RESOURCES RESOURCES RESOURCES
ASSESSMENT OF ASSESSMENT OF ASSESSMENT OF ASSESSMENT OF
TRINIDAD AND TRINIDAD AND TRINIDAD AND TRINIDAD AND
TOBAGO TOBAGO TOBAGO TOBAGO
WATER RESOURCES AGENCYWATER RESOURCES AGENCYWATER RESOURCES AGENCYWATER RESOURCES AGENCY
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
THE WATER RESOURCES AGENCY
• Division within the Water and Sewerage Authority (WASA) of Trinidad and Tobago since 1976
• Initiated with the formation of a Water Resources Survey in 1966
• Water Resources Survey consisted of a team of Canadian experts engaged to boost surface and groundwater research and development efforts in Trinidad and Tobago
• The Water Resources Agency (WRA) evolved from an amalgamation of the Water Resources Survey and Hydrology Section of the Drainage Division (Ministry of Works) between 1970-1971
• Cabinet Minute established the formal relationship between WASA and WRA
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
ROLE AND RESPONSIBILITIES• Mission:
“To effectively manage the country’s water resources and promote conservation development and protection of these resources for sustainable use in a cost effective and integrated manner to support socio-economic growth.”
• Functions:– Manage water resources using the Integrated Water Resources Management (IWRM)
approach
– Promote development, conservation and protection of water resources
• Management objectives:– Water resources monitoring and assessment (quantity and quality)
– Water allocation, regulation and licensing
– Water resources planning , investigations and development
– Implementation of IWRM
– Develop and maintain a National Water Resources Database and Information System
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
WATER RESOURCES OF TRINIDAD AND TOBAGO
• Sources:
– Surface; rural intakes, springs and impoundment reservoirs (60%)
– Groundwater; aquifers (28%)
– Desalinated water (12%)
• Surface water availability estimated at 2,800 MCM/year for Trinidad and 103 MCM/year for Tobago (DHV Consultants, 1999)
• Primary surface water sources – Caroni, North Oropouche, Navet, Ortoire and Hillsborough Rivers
• Groundwater safe yields were estimated at 174 MCM/year in 1999 and 549 MCM/year in 2002 based on calculations using the Megawatershed Concept.
• Major aquifers that supply groundwater include; Northern Valley (alluvial deposits), alluvial fan deposits, artesian aquifers, reef limestone and sands
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
WATERSHED
S
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
WATERSHED
S
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
MEASUREMENTS/ASSESSMENTS• Hydrometric areas – nine (9) in Trinidad and five (5) in Tobago
• Hydrometeorological monitoring:
– Rainfall;• Pot gauges (63)
• Telemetry (23)
• DCPs (20)
– Streamflow;• Telemetry (9)
• DCPs (7)
• Feuss recorder (2)
– Evaporation;• Evaporation pans (4)
• Weather stations (4)
• Groundwater monitoring:
– Observation wells
• Water Quality Monitoring System in Caroni River Basin
• Electronic data collection systems; Telemetry and DCPs
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
No. Trinidad Area (km²)
No. Tobago Area (km²)
1 North Coast 368 11 North Coast 49.2
2 North Oropouche 606 12 East Coast 48.7
3 Nariva 461 13 Windward 113.9
4 Ortoire 479 14 Courland 38.6
5 Southern Range 526 15 Lowlands 45.8
6 Cedros Peninsula 420
7 South Oropouche 438
8 Central West Coast 518
9 W. Peninsula/ Caroni 1010
HYDROMETRIC AREAS IN TRINIDAD
AND TOBAGO
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
HYDROMETRIC AREAS
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
HYDROMETRIC AREAS
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
RAINFALL
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
RAINFALL
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
STREAMFLO
W
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
STREAMFLO
W
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
GROUNDWATER
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
GROUNDWATER
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
TELEMETRY AND DCPS
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
TELEMETRY AND DCPS
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
NETWORK UPGRADE
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
WEATHER STATION
AT
HOLLIS RESERVOIR
EVAPORATION
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
WATER ALLOCATION• WASA is major abstractor of the natural water resources, other users
include industrial and agricultural facilities
• Approximately 94.7% of population in Trinidad and 84.8% in Tobago provided with a piped water supply (Genivar, 2008)
• 24 hour supply only provided to 16.6% and 39.6% of population inTrinidad and Tobago, respectively (Genivar, 2008)
Source Type Design Capacity (imgd)
Current Production (imgd)
Desalinated Water 30 31.18
Groundwater 74.87 60.47
Surface Water 140.76 140.81
Total Production (Trinidad)
245.63 232.46
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
SUPPLY
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
SUPPLY
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
REPORTS• Annual Data Reports
– Monthly and annual monitoring data published every two years
• State of Water Resources Report
– Monitoring instrumentation and regime
– Hydrological trends
– Environmental pressures on water resources
– Watershed and aquifer assessments
– Water consumption
• Hydrological Assessments
– WASA
– Ministry of Agriculture
– Ministry of Energy
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
PROJECTS• National Water Resources Database
– HydroManager (web application), HydroGeoAnalyst and AquaChem (desktop solutions)
• Artificial Aquifer Recharge
– Pilot project in the Mahaica Sands Aquifer System to determine feasibility of artificial aquifer recharge and recovery
• IWRM
– IWRM Stakeholder Forums
– Updating of IWRM Policy (2005)
• Adopt A River– Initiative to involve the community and corporate citizens in the improvement of watersheds in
Trinidad and Tobago
– 69 watersheds in Trinidad and Tobago put up for adoption under the Adopt A River Program
– Program includes establishment of a mobile water lab
WATER AND SEWERAGE AUTHORITY“Water Security in Every Sector”
THANK YOU
