On 26 April 2019 26/04/62
1
OVERVIEW OF WATER SITUATION Chachoengsao Reserve Pond P2
P4 P3
P5
12
P6
Private Pond
Samnakbok Reserve Pond P7
Bang Phra res. P9
52.97
37
P-BPN P8
5.98
Nong Kho res.
P10
IN
RAYONG-CHONBURI AREA 26 APR 2019
Chonburi P1
Rayong
Bangphra
Nongkho
Dokkrai
Nongplalai
Klong Yai
Prasae
117.00
21.40
79.41
163.75
40.10
295.00
52.97
5.98
32.08
97.96
29.46
138.92
45%
28%
40%
60%
73%
47%
40.92
4.98
29.08
84.46
26.46
118.92
Inflow into reservoir (MCM) (On 25 Apr 2019)
-
-
0.103
0.222
0.376
Water volume compared to previous week (-decrease, +increase) (MCM) Total water volume in each area
-1.72
-0.19
Reservoir capacity (MCM) Current storage volume (MCM) Percentage of reservoir capacity Useable storage volume (excluding Dead Storage) (MCM)
-
0.701 -2.78
-3.14
+0.27 -8.19
-1.91
-5.64
58.95 MCM (42.6 %)
159.5 MCM (56.31 %)
Note: * When storage volume falls below 15.2 MCM, it is not possible to transfer water from Klongyai Reservoir to Nongplalai Reservoir
34
Khlong Yai res. Nong P11Pla Lai res. P12 P-NP3 32.08 P13 Dok Krai res. P14 97.96
138.92
29.46
Prasae res. P
XX
XX XX
P15
177
Raw Water Pipe Line (EW) P16
Source of data: Royal Irrigation Department
Existing Pipe Network
Constructing Pipe Network
Demand 2560 (MCM.) Supply (MCM.) Pump Station Raw Water Pipe Line (RID) Existing Pipe Network Constructing Pipe Network
WATER SITUATION OF BANGPHRA, NONGKHO RESERVOIR
26/04/62
3
Water situation of Bangphra Reservoir (by Year)
URC
LRC
26/04/62
4
Water situation of Nongkho Reservoir (by Year)
26/04/62
5
Water situation of Nongplalai, Dokkrai and Klongyai Reservoirs
Water situation of Dokkrai Reservoir (by Year)
26/04/62
7
Water situation of Nongplalai Reservoir (by Year)
Water situation of Klongyai Reservoir (by Year)
WATER SITUATION OF PRASAE RESERVOIR
Summary of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces 2019 Planned Water Volume (MCM) 2019
Measure JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Total
8.0
8.0
8.0
8.0
8.5
8.0
8.5
8.0
8.5
8.0
8.0
8.0
73.50 (97.50)
3.89
4.82
4.67
4.82
4.82
2.33
1. Primary measures
1.1Water diversion via pumping from Prasae Reservoir
Planned PS - KY Planned PS- NPL Actual PS-KY Actual PS-NPL
1.2 Divert Water from Bangpakong River + Private Pond 1.3 Divert Water from Klong Pra Ong Chaiyanuchit Total
Planned
5.04
-
4.56
-
25.35
7.25
25 Apr 2019 6.97
23.82
-
25 Apr 2019 1.49
1.49
0.71 0.84 1.08 1.52 1.66 1.31 2.08 0.68 0.70 0.90
Actual
1.04
Actual
-
Planned
5.67
1.83
2.42
11.48
25 Apr 2019 2.48
7.77
5.32
9.08
9.52 10.16 9.31 10.58 8.68
8.2
8.9
8.0
8.0
107.73
Reservoir Simulation Simulation of Water situation in Dokkrai, Nong Pa Lai and Klong Yai Reservoir : reserve water for 2 years 2019 – 2020 2019
2019
Total water volume (MCM)
Scenario : 2 – 4 have to divert water from Prasae reservoir
Maximum storage volume 283.26 MCM
26 Apr 2019 Volume 159.5 MCM.
Minimum storage volume 19.5 MCM
1
Average inflow (50%)
2
Lowest inflow in period 20 yrs. (50%)
3
1997 inflow (50%)
4
2004 - 2005 inflow (50%) Control Point at 240 MCM
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