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SUNGAI SELANGOR WATER SUPPLY SCHEME

PHASE 3 (SSP3)

SPLASH Welcomes Workshop Delegates, NAHRIM and LUAS

03 December 2008

Rasa WTPBadong WTP SSP1 WTP

The views expressed in this paper/presentation are the views of the author and do not necessarily reflect the views or policies of theAsian Development Bank (ADB), or its Board of Governors, or the governments they represent. ADB does not guarantee the accuracy

of the data included in this paper and accepts no responsibility for any consequence of their use. Terminology used may notnecessarily be consistent with ADB official terms.



WATER SUPPLY STRUCTURE IN SELANGOR

SPAN REGULATOR

PNSB (43%)

Plant Capacity – 1900 MLDSPLASH (45%)

Plant Capacity – 2000 MLD

ABASS (12%)

Plant Capacity – 545MLDSUPPLIER

SYABASDISTRIBUTORTotal Capacity: 4476 MLD (‘08)

CONSUMERS

Surplus Capacity: ~15%



PERAK

SUNGAI SELANGORThe Gap

Bukit Fraser

RIVER BASINSungai

Selangor DamCatchment

Area

Sg. Kerling

Sg. Beletak

Sg. SelangorDam

Sg. Tinggi Dam

Sg. Luit

Balancing

PAHANG

Rasa

Sg. KerlingSg. Buloh

Sg. Batang Kali

Rasa IntakeReservoir

Treatment

Plant

SELANGOR

KualaSelangor

Sg. Selangor

S . Serendah

.

Sg. LiamSg.

SembahBatang Intake

SerendahSg. Selangor

Sg. Rawang

Sg. Garing

Batu Arang

Treatment PlantBt. Badong

Area ofArea of SgSg. Selangor River Basin = 1960 km. Selangor River Basin = 1960 km22

Area of Water CatchmentArea of Water Catchment = 197 km= 197 km22

Batu CavesSg. Kundang

Bkt TadunBalancingReservoirKuang

Bt. Matang Pagar

Length ofLength of SgSg. Selangor. Selangor = 110 km= 110 km

SgSg. Selangor Dam Inundation Area = 6 km. Selangor Dam Inundation Area = 6 km22 /6/6 hechec..

SgSg.. TinggiTinggi Dam Inundation Area = 8 kmDam Inundation Area = 8 km22 /8/8 hechec..



Major Treatment Plants Within Sungai Selangor

River Basin

Treatment Plant Design Capacity Production

SSP1 (SPLASH) 950 700

SSP3 (SPLASH) 800 630asa

Rantau Panjang 37.5 42

TOTAL: 2987.5 2364

* Sg. Selangor supplies 67% of Klang Valley water demand



Operational Issues/Challenges

Protection of resource and water-related facilities against pollution threats by

human activities (uncontrolled development, recreational, farming, aquaculture,

ega se emen , encroac men

• Sufficient Quantity of Raw Water

• Unpredictable weather pattern

Prolonged Drought – Supply problem

Prolonged wet season - Flood

• Compliance:

- reate water qua ty- Treatment Plant Effluent discharge quality (DOE)

- 300MLD residual flow requirement during dry season (DOE

‘ ’



PERAKSUNGAI SELANGOR RIVERBASIN - Landuse The Gap

Bukit Fraser

Legend

Orang Asli village

Factory Open Dumping

Aquaculture

KKB

Sg. SelangorDam

Sg. Tinggi

Dam Sg. Luit

Pig Abattoir

Cow Abattoir

IWK

Landfill

Pig Farm

Vegetable farm

Sg. Rinting

Rasa

Batang Kali

Rasa

Bukit Tagar Landfill

Sungai TinggiRPS

KualaSelangor

Bestari

SSP1,2,3 WTPRantau

Panjang WTPKawasan Perindustrian

Serendah

BatuArang

Sg.Garing

Jaya

Bt. Badong TIP TOP Meat

Bukit Tadun BR

Kundang Open Dumping

Perindustrian Rawang

Kuang



SUNGAI SELANGOR RIVER BASIN ENVIRONMENTAL

MONITORING AND POLLUTION MAPPING

Legend:SP – Sampling station



Potable Water Supply/Demand Management In

Rasa Treatment

Plant

Consumers in

Northern Selangor

Sg SelangorSSP1

CONSUMERS

IN

THE KLANG

am

SSP2

VALLEYSg Tinggi

Dam

SSP3



UTILIZATION OF TREATED WATER IN SELANGOR

WATER

CONCESSION-NAIRES

Production 3850 MLD

Billed 2375 MLD (63%)

NRW 1395 MLD (37%)

Consumers in Selangor

Population ~ 7.1 million

~ 1.48 mil account

1140 MLD 1235 MLD

DOMESTIC - 85% by account

48% by consumption

NON-DOMESTIC - 15% by account

52% by consumption

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