Portmore Sewerage Project Outline - National Water Commission

a) Expansion of the sewered area in northern KSA;
b) Decommission of current four sewage treatment plants in Portmore and
conversion of those plants to transfer pumping stations to Soapberry STP;
c) Installation of sewer pipelines between the said transfer pumping stations and
Soapberry STP including pipe bridge crossing the Rio Cobre River; and
d) Installation of back up generators to new transfer pumping stations in Portmore.
For the Portmore Sewerage, one of the options considered broadly involves the
following:
a) New Bridgeport Pump Station
• Installation of 2,630 m of 400 mm diameter forcemain to the Independence
City plant.
• Provision of pumps as follows : 3 pumps each of capacity 90 lps @ 20 m TDH
/ 25 kW
b) Independence City Pump Station
• Installation of 3 210 m of 600 mm diameter forcemain to the Soapberry WTP
• Provision of pumps as follows : 3 pumps each of capacity 200 lps @ 17 m TDH
/33 kW
c) Caymanas Gardens Pump Station
• Installation of 1,030m of 300 mm diameter forcemain to the Soapberry plant
• Provision of pumps as follows: 3 pumps each of capacity 65 lps @ 12 m TDH
/11 kW
d) Hamilton Gardens Pump Station
• Installation of 1,290 m of 200 mm diameter forcemain to the Caymans Garden
plant
• Provision of pumps as follows : 2 pumps each of capacity 40 lps @ 18 m TDH
/ 7 kW
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