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On 21th April 2023
Overview of water situation in Rayong-Chonburi area on 21 Apr 2023
Samnakbok Reserve Pond Khlong Yai res. Nong Pla Lai res. Dok Krai res. Private Pond Prasae res. Existing Pipe Network Constructing Pipe Network Raw Water Pipe Line (EW) Existing Pipe Network Constructing Pipe Network Raw Water Pipe Line (RID) Bang Phra res. Nong Kho res. P1 P4 P3 P8 P9 P12 P11 P13 P14 P5 P7 P P2 34.84 P6 P10 15.53 71.61 195.81 207.40 15.85 Demand 2023 (MCM.) Supply (MCM.) Pump Station XX XX XX 51.02 93.01 69.45 16.74 P15
1 Chonburi Rayong BangPhra Nong Kho Dokkrai Nong Pla Lai Klong Yai Prasae Reservoir capacity (MCM) (Temporary increase) 117.00 21.40 71.40 (79.41) 163.75 (187.62) 40.10 (51.10) 295.00 Current storage volume (MCM) on 20 Apr 2023 69.45 16.74 51.02 93.01 15.85 207.40 Percentage of reservoir capacity 59% 78% 71% 57% 40% 70.3% Useable storage volume (excluding Dead Storage) (MCM) 57.40 15.74 48.02 79.51 12.85 187.40 Inflow into reservoir (MCM) (On 21 Apr 2023) 0.553 0.0290.582 Water volume compared to previous week (-decrease, +increase) (MCM) -2.06 -0.40 -1.62 -5.61 -0.79 -4.08 -2.46 -8.01 Total water volume in each area 86.19 MCM (62.30%) 159.88 MCM (58.09%) Ref: water situation from RID on 21 Apr 2023
Water situation of Bangphra, Nongkho Reservoir
Water situation of Bangphra Reservoir (by Year)
Water situation of Nongkho Reservoir (by Year)
Water situation of Nongplalai, Dokkrai and Klongyai Reservoirs
Water situation of Dokkrai Reservoir (by Year)
Water situation of Nongplalai Reservoir (by Year)
Water situation of Klongyai Reservoir (by Year)
Water situation of Prasae Reservoir
1.
Measure Planned Water Volume (MCM) 2023 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Total
Primary measures
1.1Water diversion via pumping from Prasae Reservoir
Feb
May
Planned PS-KY 6.00 6.20 6.20 3.85 22.25 Planned PS-NPL 1.55 1.40 3.10 3.00 3.10 3.00 3.10 3.10 3.00 3.10 0.25 0.25 27.95 PS-KY* 7.06 2.92 8.82 3.62 22.42 Actual PS-NPL 0.38 0.39 1.40 1.32 3.49
* Divert water to irrigation area during
until
2023
1.2 Divert Water from Bangpakong River + Private Pond Private Pond 1.83 1.60 1.92 0.74 1.74 1.19 1.04 0.89 10.94 Planned Bangpakong 6.96 6.31 5.97 3.30 22.54 Actual Private Pond 0.84 1.17 1.88 0.83 4.72 Actual Bangpakong 0.00
Planned
Planned KlongSaphan 4.00 4.00 4.00 12.00 Actual KlongSaphan 0.00
1.3 Klong Saphan reverse pumping station
Planned 14.00 14.00 14.00 14.00 56.00 Actual
1.4 Divert Water from Klong Pra Ong Chaiyanuchit
20 Apr 20 Apr 20 Apr
Summary of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces 2023
Target Line and Reservoir Simulation in Chonburi
On 21 Apr 2023
Normal Status All Clear) Prepare water reserve
Normal Status All Clear)
Water Volume 113.99 MCM 155 130
155 130 Prepare water reserve
• Divert water from Bang Pa Kong River and Pra Ong Chaiyanuchit (diversion will according to the water situation)
Surveillance of water scarcity
• Increase water diversion from Rayong (diversion will according to the water situation)
Water shortage warning
Minimum storage volume15.05 MCM.
• Divert Water from Khlong Luang Ratchalothorn reservoir (diversion will according to the water situation)
• Consideration for another private pond
• Reduce water usage for various activities
155
Target Line and Reservoir Simulation in Rayong
Increase reservoir capacity for temporary 318.13 MCM.
Normal Status All Clear)
Surveillance of water scarcity
Water shortage warning Minimum storage volume 31.70 MCM.
On 21 Apr 2023
Water Volume 159.88 MCM or 58.90%
Normal Status All Clear)
170
• Divert water from Prasae reservoir via Prasae Yai pipeline and PrasaeNong Pla Lai pipeline (diversion will according to the water situation)
• Divert water from Wat La Harn Rai to Nong Pla Lai reservoir (diversion will according to the water situation)
• Divert water from Prasae reservoir via Prasae-Klong Yai pipeline and Prasae-Nong Pla Lai pipeline (Full efficiency)
• Divert water from Wat La Harn Rai to Nong Pla Lai reservoir (Full efficiency)
• Reduce water consumption for all activities
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220
230
170 220
Target Line and Reservoir Simulation in Prasae
250
Storage Volume 295.0 MCM
Normal Status All Clear) Prepare water reserve
160
Surveillance of water scarcity
250
On 21 Apr 2023
Water Volume 207.40 MCM or 70.31%
Normal Status All Clear)
Prepare water reserve
160
• Divert water from Khlong Saphan canal to Prasae reservoir (diversion will according to the water situation)
• Divert water from Wang Ta Nod canal to Prasae reservoir (diversion will according to the water situation)
• decrease divert water from Prasae reservoir (diversion will according to the water situation)
250
Water shortage warning
Minimum storage volume 20.0 MCM.
• Reduce water consumption for all activities
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