CADANGAN PEMBANGUNAN PANGSAPURI 19 TINGKAT (280 UNIT) YANG MENGANDUNGI :-

1. 3 TINGKAT SEMI BASEMENT TEMPAT LETAK

KERETA DI TINGKAT BAWAH TANAH 1, 2 DAN 3 2. BILIK MEKANIKAL DAN SURAU DI TINGKAT BAWAH

TANAH 1 3. 1 TINGKAT PODIUM KEMUDAHAN(PEJABAT

PENGURUSAN, TADIKA, 2 UNIT RUANG PERNIAGAAN, GIMNASIUM, KAFETERIA, PASAR MINI, DEWAN SERBAGUNA, KOLAM RENANG DAN BILIK MEKANIKAL) DI TINGKAT BAWAH

4. BLOK A-18 TINGKAT PANGSAPURI (140 UNIT) DI TINGKAT 1-18

5. BLOK B-18 TINGKAT PANGSAPURI (140 UNIT) DI TINGKAT 1-18

DI ATAS LOT 1013 (PT 7026), JALAN PIPIT, BANDAR PUCHONG

JAYA, PUCHONG, MUKIM PETALING, DAERAH PETALING, SELANGOR DARUL EHSAN UNTUK TETUAN DYNAMIC

MANAGEMENT SDN BHD.

WATER SUPPLY CALCULATION

Jurutera Perunding MajuJurutera Perunding MajuJurutera Perunding MajuJurutera Perunding Maju (Company No. 586937-D)

CONSULTING CIVIL & STRUCTURAL ENGINEERS

7A, 1st Floor, Jalan 20/14, Paramount Garden, 46300 Petaling Jaya, Selangor.

Tel: 03-78748741, 78748082, 78741166 Fax No: 03-78760734

email: jpmaju@yahoo.com

APR 2016

Table of Contents 1. Introduction 1

2. Water Demand 2

3. Design Criteria for Water Reticulation Mains 3

4. Sample Calculation of Pipe Design 6

Appendix

Appendix A Key Plan and Location Plan

Appendix B Approval Letters from SPAN

1.0 INTRODUCTION The design of this water reticulation is for the proposed development of

residential for housing development which is located on Lot 1013, PT. No. 7026,

Bandar Puchong Jaya, Mukim Petaling, Daerah Petaling, Selangor Darul Ehsan.

This development consists of 280 units apartment, management office,

kindergarten, business area and other facilities. The developer for this project is

Messrs. Dynamic Management Sdn Bhd.

The proposed site is an approximately 18, 165m2 which is located near to Jalan

Pipit. The site is bounded by Sri Bayu Apartment on the western and the southern

boundary is bounded by Impian Height Apartment.

This report is prepared for the approval of Syarikat Bekalan Air Selangor

(SYABAS) on the analysis and design of water supply system by using EPANET.

2.0 PROJECT DESCRIPTION Messrs. Dynamic Management Sdn Bhd is intended to develop the site into

residential area. The proposed development is located on Lot 1013, P.T. 7026,

Bandar Puchong Jaya, Mukim Petaling, Daerah Petaling, Selangor Darul Ehsan.

3.0 WATER SUPPLY SYSTEM

3.1 Source of Water

The source of water supply for the proposed development is from Node 1

(refer to water supply overall planning layout) and the residual head at that

tapping point is 70.00m.

3.2 Proposed Water Supply System

The proposed water supply system for the development consists of

200mm M.S. Pipe from the proposed water source (tapping point) to

supply to the proposed development.

The detailed engineering design for the water supply system and external

reticulation system is attached in Appendix B for the fire, normal and peak

analysis subsequently.

4.0 WATER DEMAND

The water consumption for the above developed area has been calculated based

on the guidelines provided by PUAS Berhad (Pindaan January 2000). The water

demand is based on the number and type of development units set out in the

estate structural plan submitted by the developer. The estimated water demand is

as shown in the Table 1.0

Description Person/

Unit Consumption

(litres/day/unit) Total

consumption (litres/day)

Total consumption (gallon/day)

Block A & B 280 1,500 420,000 92, 387.08

Surau 20 50 1,000 219.97

Tadika 1 30 1,500 329.95

Ruang Perniagaan

2 (225.17 m

2)

1,000/100m2 2,251.70 495.30

Gymnasium 1 (122.42 m

2)

1,000/100m2 1,224.20 269.29

Cafeteria 1 (205.55 m

2)

1,000/100m2 2,055.50 452.15

Pasar mini 1 (105.65 m

2)

1,000/100m2 1,056.50 232.40

Kolam renang 1 4500 4500 989.86

Dewan serbaguna

1 (213.10m2) 1,000/100m

2 2,131.00 468.75

Sum 435,718.90 95,844.76

Add 10% Losses 43, 571.89 9,584.48

Total 479,290.79 105,429.23

Table 1.0: Water consumption in a day.

Total Daily Water Consumption = 479,290.79 lpd = 105, 429.23 gpd

5.0 DESIGN CRITERIA FOR WATER RETICULATION MAINS

All distribution/reticulation network pipes shall be designed to meet peak demand

requirements as well as fire demand requirements, according to the relevant risk

category, with average demand taken at all other points in the network. For both

requirements, the minimum residual heads required shall be met.

5.1 Flow in Pipes

5.1.1 Hazen Williams Formula The Hazen Williams Formula for circular pipes may be stated in metric units as follows: V = 0.355 C D0.63S0.54 and Q = 0.279 C D0.63S0.54 Where V = Velocity of flow in m/s = Q/A

Q = Flow rate in m3/s

A = Internal cross sectional area of conduit, in m2

D = Internal diameter of pipe considered, in m

C = Roughness coefficient taken as 100 for planning

purposes to allow for operation of pipes in poor

condition.

S = HI/L

HI = The loss in head due to frictional resistance of fluid flow,

in m

L = Length of main, in m.

The formula for Q may be arranged to give the following convenient expression for head loss:

HI = 6.78 x [V] 1.85

D 1.165

[C]

5.1.2 Flow Velocity

The maximum flow velocity used in the water distribution system shall generally

by 2.6 metre per second. This is to prevent erosion due to turbulence at high

velocities. The suction side of pumped pipeline shall not have a velocity more

than 1.2 metres per second to reduce problems of cavitation.

5.1.3 Peak Demand

Hourly variations in water demand result in the use of peak factors in the design of

pipelines. Average demand in a water distribution system is the total daily

demand requirement divided by 24 hours. Peak demand is obtained by

multiplying the average demand by the peak factor of 1.2.

5.1.4 Fire Flow

The required quantity of water to meet fire demand shall adopt Class A risk of high

rise buildings with average flow of 1370 litre per minute (362 gpm) and with fire

hydrants spanning 90.0m apart.

5.2 Cover Requirements i) Minimum Cover

The depth of cover shall be measured from the ground to the crown of the

pipe and the depth shall satisfy the following requirements.

a) 1200mm below the ground level for pipes buried at the side and

under the road.

b) 900mm for pipes buried in ground, away from roads.

ii) Maximum cover

Generally, it is not desirable to exceed 2 meters. However, it can be

deeper to suite location of valves.

iii) Gradients

All pipes shall be laid to a smooth grade. The minimum gradient shall be

1:500.

iv) Dead Ends

The reticulation network shall be designed such that it will have as few

dead ends as possible. All dead ends shall be by the hydrant or scour

valve arrangement.

5.3 Valve Chamber

All valves which are to be placed underground shall be housed in chambers.

There are three common types of valve chambers, namely precast concrete, brick

and reinforced concrete chambers.

Brick and reinforced concrete valve chambers shall have the following generally

features:-

i) The internal dimensions of the chamber shall depend on the size of valves,

fittings and joints to be placed in the chamber. The distance between the

wall and the edge of the joint shall be at least 150mm for pipes not

exceeding 450mm while pipes greater than 450mm shall have a distance

of at least 300mm. The chamber width or length width or length shall not

be smaller than 750mm.

ii) The base shall have a minimum thickness of 150mm.

iii) Valves shall be installed on mass concrete supports.

iv) Chambers deeper than 1.0 meter shall be provided with 20 mm diameter

wrought iron steps spaced at 300 mm interval.

v) Valve chambers are provided with covers, either or reinforced concrete,

mild steel or cast iron. Covers shall be supplied with lifting facilities. Mild

steel and cast iron covers shall be hinged and shall be designed for heave

duty.

vi) Scour valve chambers shall be provided with an outlet.

6.0 SAMPLE CALCULATION OF PIPE DESIGN

Junction 3

(Highest Residual Head - Case: "Peak Flow”

The proposed platform = 45.50 m

Depth of plinth = 0.60 m

The height of tank = 4.27 m

Minimum pressured head required = 69.98 m

Residual head available = 19.58 m < 30 m (JBA requirement)

Junction 3

(Lowest Residual Head - Case "Fire Flow")

The proposed platform = 49.57 m

Pressure head available = 68.91 m

Residual head available = 19.34 mm > 7.5 m (JBA requirement)

Pipe P1 between Node 1 to Node 2

(Highest Head loss per- 1 000m - Case "Peak Flow")

Flow rate in the steel pipe = 6.66 l/s

Diameter of the pipe = 200 mm

Length of pipe = 9 m

Roughness of coefficient = 100

Head loss per 1,000m = 0.50 m which is less than 2.00 m

APPENDIX A

KEY PLAN AND

LOCATION PLAN

APPENDIX B

APPROVAL LETTERS

FROM SYABAS

Rujukan KamiNo. Rujukan Projek

: SYA/NPD/DD/PTG/PTG/PT1013/16(00947): TP2015110089

Tarikh : 09/02/2016

Cheah Choon NamJuruteraJurutera Perunding Maju7A, 1st Floor, Jalan 20/14,Paramount Garden,46300 Petaling JayaSelangor Darul Ehsan.

No Tel : 019-3100 317No Faks : 03-7876 0734

Tuan,

Perkara : Sila rujuk Lampiran D

-   Kelulusan Bekalan Air (105,429 Gsh/0.479 Jlsh)

Adalah saya dengan segala hormatnya merujuk kepada perkara di atas dan surat tuannombor rujukan JPM/270/97/383 bertarikh 20 Januari 2016 diterima pada 26 Januari2016 serta hasil keputusan Mesyuarat Jawatankuasa Kelulusan Pelan 1 bertarikh 29Januari 2016 adalah berkaitan.

2.    Bekalan air sebanyak 105,429 Gsh/0.479 Jlsh boleh diberi dari saluran paip sediaada bersaiz 350mm DI diameter di Jalan Pipit dan pemohon hendaklah memasangsaluran paip yang sesuai darinya ke rancangan tersebut dengan perbelanjaan sendiri.Tempoh sahlaku punca dipohon ini adalah selama dua (2) tahun dari tarikh surat ini.

3.    Bekalan air boleh dibekal ke rancangan tersebut pada tahun 2016 dan selepasnya.Walaubagaimanapun jika projek ini tidak bermula dalam masa 2 tahun dari tarikh suratini dikeluarkan, maka maklumat yang terkandung dalam para 2 & 4 akan tidak berkuasalagi. Oleh itu permohonan baru hendaklah dikemukakan semula untuk mengesahkantempat penyambungan baru.

Rujukan Kami : SYA/NPD/DD/PTG/PTG/PT1013/16(00947)Tarikh : 09/02/2016Perkara : Rujuk Lampiran D Muka Surat : 2/5

4.    Tekanan air untuk tujuan rekabentuk dari paip/kolam adalah dalam lingkungan 70 mODL.

5. Pihak Tuan hendaklah mematuhi perkara-perkara berikut: i. � Syarat yang dinyatakan dalam LAMPIRAN TP-A yang disertakan.

Sekian, terima kasih.

SYARIKAT BEKALAN AIR SELANGOR SDN. BHD.(AGENSI PERAKUAN SPAN)

Surat ini dicetak melalui sistem dan tidak memerlukan tandatangan.(ROSMIZAH BINTI AHMAD)Pengurus Besar Jabatan PembangunanBagi Pihak Pengerusi Jawatankuasa Kelulusan Pelan 1RA/NMS/ahmad

Rujukan Kami : SYA/NPD/DD/PTG/PTG/PT1013/16(00947)Tarikh : 09/02/2016Perkara : Rujuk Lampiran D Muka Surat : 3/5

s.k. 1. EN FADZLI BIN ZUBIPengarah, Jabatan OSCMajlis Perbandaran Subang JayaPersiaran Perpaduan, USJ 5, 47610 Subang JayaSelangor Darul Ehsan.

No Tel : 03-8026 3296No Faks : 03-8026 3295

2. Chung Nyuk KiongDynamic Management Sdn. Bhd.Two IOI Square, IOI Resort,62502 PutrajayaWilayah Persekutuan

No Tel : 03-8947 8888No Faks : 03-8947 8800

Rujukan Kami : SYA/NPD/DD/PTG/PTG/PT1013/16(00947)Tarikh : 09/02/2016Perkara : Rujuk Lampiran D Muka Surat : 4/5

s.d.k 1. Khor Tse TongKetua Wilayah SYABAS Petaling

2. Tuan Haji Ariff Bin IbrahimPengurus BesarJabatan Operasi dan Penyelenggaraan

3. Tn. Haji Mohd Suhaimi Bin RafiePengurus Besar KananBahagian GIS, Asset dan SCADA

- Keputusan ini merujuk kepada Mesyuarat JKP1 yang telah diadakanpada 29/01/2016

LAMPIRAN D

Rujukan Kami : SYA/NPD/DD/PTG/PTG/PT1013/16(00947)Tarikh : 09/02/2016Perkara : Rujuk Lampiran D Muka Surat : 5/5

PERKARA : CADANGAN PEMBANGUNAN PANGSAPURI 19 TINGKAT (280 UNIT) YANG MENGANDUNGI :-

1. � 3 TINGKAT SEMI BASEMENT TEMPAT LETAK KERETA DI TINGKAT BAWAH TANAH 1, 2 DAN 32. � BILIK MEKANIKAL DAN SURAU DI TINGKAT BAWAH TANAH 13. � 1 TINGKAT PODIUM KEMUDAHAN(PEJABAT PENGURUSAN, TADIKA, 2 UNIT RUANGPERNIAGAAN, GIMNASIUM, KAFETERIA, PASAR MINI, DEWAN SERBAGUNA, KOLAM RENANG DANBILIK MEKANIKAL) DI TINGKAT BAWAH4. � BLOK A-18 TINGKAT PANGSAPURI (140 UNIT) DI TINGKAT 1-185. � BLOK B-18 TINGKAT PANGSAPURI (140 UNIT) DI TINGKAT 1-18

DI ATAS LOT 1013 (PT 7026), JALAN PIPIT, BANDAR PUCHONG JAYA, PUCHONG, MUKIM PETALING,DAERAH PETALING, SELANGOR DARUL EHSAN UNTUK TETUAN DYNAMIC MANAGEMENT SDNBHD.

PIPE NETWORK ANALYSIS

H y d r a u l i c a n d W a t e r Q u a l i t y

A n a l y s i s F o r P i p e N e t w o r k s

V e r s i o n 2

Node Results for Fire Flow

Node ID Base Demand Demand Elevation Head Pressure

ID LPS LPS m m m

1 0.00 -27.40 70.00 70.00 0.00

2 0.00 0.00 51.30 69.94 18.64

3 22.830 9.13 49.57 68.91 19.34

4 22.83 9.130 48.15 68.67 20.52

5 22.83 9.130 48.15 69.21 21.06

E P A N E T

H y d r a u l i c a n d W a t e r Q u a l i t y

A n a l y s i s F o r P i p e N e t w o r k s

V e r s i o n 2

Pipe Results for Fire Flow

LINK Length Diameter Flow Velocity Headloss

ID m mm LPS m/s m/km

P1 9 200 27.4 0.87 6.84

P2 54 150 27.4 1.03 13.11

P3 65 150 9.13 0.52 3.63

P4 33 150 9.13 0.52 3.63

E P A N E T

H y d r a u l i c a n d W a t e r Q u a l i t y

A n a l y s i s F o r P i p e N e t w o r k s

V e r s i o n 2

Node Results for Peak Flow

Node ID Base Demand Demand Elevation Head Pressure

ID LPS LPS m m m

1 0.000 -6.66 70.00 70.00 0.00

2 0.000 0.00 50.65 70.00 19.35

3 (Suction Tank) 5.547 6.66 50.37 69.95 19.58

E P A N E T

H y d r a u l i c a n d W a t e r Q u a l i t y

A n a l y s i s F o r P i p e N e t w o r k s

V e r s i o n 2

Pipe Results for Peak Flow

LINK Length Diameter Flow Velocity Headloss

ID m mm LPS m/s m/km

P1 9 200 6.66 0.21 0.5

P2 22 150 6.66 0.38 1.92

E P A N E T

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