Watersituationandmitigation 2016 09 02 en

Summary of the water volume, and progress of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces for 2016 2 September 2016 Water War Room

OVERVIEW OF WATER Chachoengsao Reserve Pond P2

P4 P3

P5

17

P6

Private Pond

Samnakbok Reserve Pond P7

Bang Phra res.

P9

25.92

76

P-BPN P8

3.53

Nong Kho res.

P10

P1

SITUATION IN

RAYONG-CHONBURI AREA 2 SEP 2016

Chonburi

Rayong

Bangphra

Nongkho

Dokkrai

Nongplalai

Klong Yai

Prasae

117.00

21.40

79.41

163.75

40.10

248.00

25.92

3.53

20.83

48.27

25.32

151.32

22%

16%

26%

29%

63%

61%

13.87

2.53

17.83

34.77

22.32

131.32

-

-

0.2254

-

-

+0.80

+0.02

Reservoir capacity (MCM) Current storage volume (MCM) Percentage of reservoir capacity Useable storage volume (excluding Dead Storage) (MCM) Inflow into reservoir (MCM) (On 25 AUG 16) Water volume compared to previous week (-decrease, +increase) (MCM) Total water volume in each area

-

0.2254 +1.71

-0.35

+0.81

+1.71

29.45 MCM. (21.3%)

94.41 MCM. (33.3%)

+0.34 +5.54

Note: * When storage volume falls below 15.2 MCM, it is not possible to transfer water from Klongyai Reservoir to Nongplalai Reservoir

29

151.32 Prasae res.

25.32

Khlong Yai res.

48.27 Nong P11Pla Lai res.

P12 P-NP3 20.83 P13 Dok Krai res. P14

P

29

120 P7

P15

184

P16

Raw Water Pipe Line (EW)

Demand 2558 (MCM.) Supply (MCM.) Pump Station Raw Water Pipe Line (RID)

Existing Pipe Network

Existing Pipe Network

Constructing Pipe Network

Constructing Pipe Network

Source of data: Royal Irrigation Department

Summary of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces Planned water volume Measure

Actual

*Water Volume from Oct –Dec 2015 Total 10.64 MCM

Planned

1. Primary measures 1.1 Water diversion via pumping from Prasae Reservoir

2016 Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Total

8

8

0

9

9.3

9

9.3

9.3

9

15

15

15

115.9

2 SEP 2016

8.6

8.2

1.32

8.92

9.02

8.15

9.17

9.21

1.2 Pump water from Rayong River back to Nongplalai Reservoir using RID’s Wat Lahanyai pump station.

1.3 Pump water from Rayong River

Total

1.0

Plan Actual

1.4 Water transfer from Bangpakong River + Private Pond

Plan

8

8

0

9

9.3

9

9.3

74.77

0.30

1.0

2.0

0.5

0.5

1.0

4.0

5.0

7.0

7.0

4.0

27.0

13.3

15

23

22.5

19.5

145.9

Remarks 1. Mar 2016 had dregging sediment in front of Mor Mui weir which place inside Klong Nam Dang canal. So it needed to stop divert water from Prasae reservoir for a whole month and adjust the water diversion plan from 8 MCM to 9 or 9.3 MCM per month started from Apr – Sep 2016 2. On Oct – Dec 2016 Plan to divert water can be change depend on water situation

3

Simulation of water volume in main Rayong Reservoirs

Assume by used rainfall as 1997 in first half year and no inflow between JUN - AUG

2 SEP 2016 Water Volume : 94.41 MCM.

WATER SITUATION OF BANGPHRA, NONGKHO RESERVOIR

Water situation of Nongplalai, Dokkrai and Klongyai Reservoirs

Source of data: Royal Irrigation Department

Water situation of Prasae Reservoir

Source of data: Royal Irrigation Department

Water situation of Dokkrai Reservoir (by Year)

Source of data: Royal Irrigation Department

Water situation of Nongplalai Reservoir (by Year)

Source of data: Royal Irrigation Department

Water situation of Klongyai Reservoir (by Year)

Source of data: Royal Irrigation Department

Water situation of Bangphra Reservoir (by Year)

Source of data: Royal Irrigation Department

Water situation of Nongkho Reservoir (by Year)

Source of data: Royal Irrigation Department

PROGRESS OF WATER SHORTAGE

PREVENTION AND MITIGATION MEASURES IN

RAYONG AND CHONBURI PROVINCES On 31 AUG 2016

Prasae – Nongpalai project (1) Prasae-Nongplalai Pump Station: Completed pouring concrete, lean concrete base for support pump and motor, intake channel, roof work. Now a days work are 1.1 Structure of pump station completed between on architecture process 1.2 Install surge valve and gate valve completed 1.3 Sub 115 kV control building completed 1.3 Construction small weir completed 1.4 Flow meter on process 90% 1.5 Construction SCADA building process for 90% Actual: 95.55 %

(1) Pipe laying for 30 km section: Completed pipe jacking across Route 344 and joined the main pipe only. finished (3) Head Tank: Installing Slip Form which already 100% of work process. Completed anchorage head for posttension system 100%. The process to install stair out side tank about 100%, install Metal Bellow tools and steel pipe inside Head tank .

Actual : 99.59 % (4) Electric system of Pump station: Actual 88%

Work progress for whole project Actual 94.81% Delay from plan 5.05% *Remarks: between negotiation with supplier

Summary of the water volume, and progress of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces for 2015-16 (cont.)

Summary progress of Tabma reservoir On 31 AUG 2016 Objective For increase water supply in Rayong area not less than 47 MCM/year Project Construct pumping station nearby Rayon River and Tabma canal. For divert and keep water inside Tabma reservoir then send the water into EW pipe line system.

Budget: baht Water Volume: Construction period: contact) Due date:

Work progress (Plan) : 100 % (15 Jul 16) Actual: 77.00% Delay : 23.00% Remarks: The project don’t have work of process because of heavy rainfall.

2,202.7 million 47 MCM/year 60 months (extended 15 JUL 2016

Summary progress of Tabma reservoir (Cont.)

Constuction Tabma reservoir work Constuction Rayong pump station work

Constuction Tabma pump station work

Nongpalai – NongKho Route no.2 pipe laying project Objective : Increase capacity to supply water for Borwin - Pluak Daeng area about 60 MCM/ year.

Component: 1.Temporary pumping station construction and install pump 2.Pipe lying size 1,200 mm. length 10.1 km. and 700 mm. length 11.2 km.

3.SCADA Work Process: on 31 Jul 2016 - Plan 95.84 % - Delay from plan 4.16 % PIPE: - Pipe size 1,200 mm. finished - Pipe size 700 mm. finished PUMP STATION: work process on this section about 99.90% - Finished install pump and motor - Finished electric system - During system test

Nongpalai – NongKho Route no.2 pipe laying project (Cont.)

-

Pipe laying work Finish pipe laying Installation Butterfly Valve is on process 75% Installation Air Valve is on process 75% Installation Blow off Valve is on process 75%