2563-07-31-WaterSituationAndMitigation 2020

On 31 Jul 2020 03/08/63

1

Overview of water situation in Rayong-Chonburi area on 31 Jul 2020 Chachoengsao Reserve Pond P2

P4 P3

P5

12

P6

Private Pond

P9

11.83

P-BPN P8

Bang Phra res.

37

Samnakbok Reserve Pond

Chonburi

P1

Reservoir capacity (MCM) Current storage volume (MCM) Percentage of reservoir capacity Useable storage volume (excluding Dead Storage) (MCM)

Rayong

Bangphra

Nongkho

Dokkrai

Nongplalai

Klong Yai

Prasae

117.00

21.40

79.41

163.75

40.10

295.00

11.83

10.13

33.58

105.46

22.93

65.18

10%

47%

42%

64%

57%

22%

-0.22

9.13

30.58

91.96

19.93

45.18

-

-

1.022

2.073

1.199

P7

Inflow into reservoir (MCM) (On 30 Jul 20)

10.13

Water volume compared -1.38 +0.12 +2.44 +7.75 to previous week (-decrease, +increase) -1.26 +11.01 (MCM) Total water volume in 21.96 MCM 161.97 MCM each area (15.9%) (57.18%) Note: * When storage volume falls below 15.2 MCM, it is not possible to transfer water from Klongyai Reservoir to Nongplalai Reservoir

Nong Kho res.

P10

Dok Krai res.

Nong Pla Lai res.

P

P11

P14

P12 P-NP3 P13

XX

XX XX

P15

177

+7.19

Prasae res.

105.46 Khlong Yai res.

33.58

+0.82

65.18

22.93

34

0.930

4.293

Raw Water Pipe Line (EW) P16

Source of data: Royal Irrigation Department

Existing Pipe Network

Constructing Pipe Network

Demand 2020 (MCM.) Supply (MCM.) Pump Station Raw Water Pipe Line (RID) Existing Pipe Network Constructing Pipe Network

Water situation of Bangphra, Nongkho Reservoir

03/08/63

3

Water situation of Bangphra Reservoir (by Year)

03/08/63

4

Water situation of Nongkho Reservoir (by Year)

03/08/63

5

Water situation of Nongplalai, Dokkrai and Klongyai Reservoirs

Water situation of Dokkrai Reservoir (by Year)

03/08/63

7

Water situation of Nongplalai Reservoir (by Year)

Water situation of Klongyai Reservoir (by Year)

Water situation of Prasae Reservoir

On 31 Jul 2020 Water Volume 161.97 MCM.

Summary of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces 2020 Planned Water Volume (MCM) 2020

Measure JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Total

-

8.0

8.0

8.0

8.0

8.0

-

-

-

8.0

8.0

8.0

40.00

6.2

5.80

6.20

3.08

3.6

3.6

3.6

3.6

3.6

6.2

6.2

6.2

21.28

1. Primary measures

1.1Water diversion via pumping from Prasae Reservoir

PS. Stop divert water via PS-KY pipeline on 17 May 2020

Planned PS - KY Planned PS- NPL Actual PS-KY Actual PS-NPL

1.2 Divert Water from Bangpakong River + Private Pond

Planned Private Pond

16 May 0.03 7.06 7.72 8.11 3.87

2.4

3.30

Planned

Actual Bangpakong

1.3 Divert Water from Klong Pra Ong Chaiyanuchit

Planned Actual

3.61

3.77

3.85

2.72

31 Jul 0.23 0.33 1.09 2.87 3.42 2.27 0.50 -

27.77

20.20

0.55 0.55

-

(57.88)

26.79

18 Jun 6.26 6.35 6.45 6.13 1.25 1.33

Bangpakong

Actual Private Pond

-

(64.00)

6.08

5.90

6.09

2.35

20.97

10.76

Reservoir Simulation

On 24 Jul 2020 Water Volume 161.85 MCM.

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