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 m³
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
$345 million
O&M contract annual value
$12.6 million (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
