North Coast Water Transmission and Water Treatment Project, Puerto Rico
Key Data:
Water Treatment Plant Capacity
380,000m³/day
Raw Water Storage Reservoir
1.14 million cubic metres
Main Storage Tank Capacity
2 x 40,000m³
Treatment Elements
8 up-flow clarifiers, 16 rapid gravity filters
Filter Media
Anthracite and sand
Raw Water Supply Main
7km, 1.8m diameter
Finished Water Transmission Main
57km, 1.8m diameter
Additional Storage
15 pre-stressed concrete storage tanks, capacity ranging from 4,000m³ to 20,000m³
Population Served
1.6 million
Project Cost
$345m
O&M Contract Annual Value
$12.6m (for 5 years)
Owner
Puerto Rico Aqueduct and Sewer Authority (PRASA)
Project Planning Team
VHL / Malcolm Pirnie
Financing
Puerto Rico Infrastructure Finance Authority (AFI)
Lead Contractors
Thames-Dick Superaqueduct Partners (Dick Corporation / Thames Water JVC) and Diez, Silva and Associates Engineering (QDSA)
Pipe Fabrication Subcontractors
Atlantic Pipe Corp
Operation and Management
Thames-Dick
Distribution
Puerto Rico Water Co
Project Timeline:
Contract Signed
January 1996
Construction Commenced
September 1996
Transmission Project Commenced
1998
Superaqueduct Completed
2000
Initial Interconnections Completed
1999 / 2000
Sixth Interconnection Built
2003
Construction Completed
April 2000
Formal Inauguration
6 September 2000
Operation and Management Contract Commenced
September 2000
O&M Contract Concludes
September 2005, with option to renew
