water

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29/03/66 1
24
2023
On
th March

Overview of water situation in Rayong-Chonburi area on 24th Mar 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 71.61 195.81 223.79 20.78 Demand 2023 (MCM.) Supply (MCM.) Pump Station XX XX XX 58.55 107.36 79.71 17.82 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 24th Mar 2023 79.71 17.82 58.55 107.36 20.78 223.79 Percentage of reservoir capacity 68% 83% 82% 66% 52% 75.9% Useable storage volume (excluding Dead Storage) (MCM) 67.66 16.82 55.55 93.86 17.78 203.79 Inflow into reservoir (MCM) (On 23th Mar 2023) 0.027 - 0.0350.063 Water volume compared to previous week (-decrease, +increase) (MCM) -2.70 -0.24 -2.06 -5.61 -0.95 -4.78 -2.94 -8.63 Total water volume in each area 97.53 MCM (70.50%) 186.7 MCM (67.83%) Ref: water situation from RID on 17 Mar 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. Primary measures

Measure Planned Water Volume (MCM) 2023 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Total
1.1Water diversion via pumping from Prasae Reservoir
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 6.68 16.66 Actual PS-NPL 0.38 0.39 0.68 1.45
* Divert water to irrigation area during Feb until May 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 1.46 3.47 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
24 Mar 24 Mar 24 Mar
Summary of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces 2023

Target Line and Reservoir Simulation in Chonburi

On 24 Mar 2023

Normal Status All Clear) Prepare water reserve

Normal Status All Clear)

reserve

Water Volume 127.86 MCM 155 130

• 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

155 155 130 Prepare water

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 24 Mar 2023

Water Volume 186.69 MCM or 67.83%

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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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 24 Mar 2023

Water Volume 223.79 MCM or 75.86%

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

THANK YOU

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