Summary of the water volume and mitigation measures in Rayong and Chonburi Provinces for 2023
On 8th Sep 2023
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Overview of water situation in Rayong-Chonburi area on 8th Sep 2023
Detail 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 8 Sep 2023 50.31 12.14 36.26 95.82 24.04 171.28 Percentage of reservoir capacity 43% 57% 51% 59% 60% 58.1% Useable storage volume (excluding Dead Storage) (MCM) 38.26 11.14 33.26 82.32 21.04 151.28 Inflow into reservoir (MCM) (On 7 Sep 2023) 0.118 0.163 0.1900.471 Water volume compared to previous week (-decrease, +increase) (MCM) -0.12 -0.17 -0.93 -2.31 -0.34 -2.44 -0.29 -3.58 Total water volume in each area 62.45 ล้าน ลบ.ม. (45.10%) 156.21 ล้าน ลบ.ม. (56.72%) 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 38.00 P6 P10 17.00 48.00 156.60 171.28 24.04 Demand 2023 (MCM.) Supply (MCM.) Pump Station XX XX XX 36.26 95.82 50.31 12.14 P15
Ref: water situation from RID on 8 Sep 2023 Normal 50.01-80.00% Emergency 30.01-50.00% Critical <30.00%
Water situation of Bangphra, Nongkho Reservoir
Water Situation of Bangphra and Nongkho Reservoirs
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 Maximum 2006-2022 2004 2005 2015 2016 2017 2018 2019 2020 2021 Capacity Dead storage URC - RID LRC - RID Average 2006-2022 2023 2022
Water volume in Bangphra and Nongkho Reservoirs (MCM.) 0 20 40 60 80 100 120 140 160 8 Sep 2023 62.45 MCM. 45.12 % 2 Reservoirs total capacity 138.4 MCM. Minimum reservoir volume 13.05 MCM. URC - RID LRC - RID Average 2006-2022 Maximum 2006-2022 2023 1 2022
Water situation of Bangphra Reservoir (by Year)
Water Situation of Bangphra Reservoir
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 2004 2005 2006 2011 2015 2016 2018 2019 2020 2021 Capacity Dead storage URC - RID LRC - RID Average 2006-2022 2023 2023
Water volume in Bangphra Reservoir (MCM.) 0 20 40 60 80 100 120 140 8 Sep 2023 50.31 MCM. 43 % Reservoir Capacity MCM. Minimum reservoir volume .05 MCM. URC - RID LRC - RID Average 2006-2022 2023 2022
Water situation of Nongkho Reservoir (by Year)
Water Situation of Nongkho Reservoir
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 2 4 6 8 10 12 14 16 18 20 22 24 26 2004 2005 2011 2015 2016 2018 2019 2020 2021 Capacity Dead storage Normal useable volume URC - RID LRC - RID Average 2006-2022 2023 2023
Water volume in Nongkho Reservoir (MCM.) 0 5 10 15 20 25 8 Sep 2023 12.14 MCM. 56.72 % Reservoir Capacity .4 MCM. Minimum reservoir volume MCM. URC - RID LRC - RID Average 2006-2022 2023 Normaluseable volume MCM. 2022
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 Maximum 2006-2022 2004 2005 2014 2015 2016 2017 2018 2019 2020 2021 Capacity Minimum volume Dead storage Increased Capacity URC - RID LRC - RID Average 2006-2022 2023 2023
Reservoirs Water volume in Dokkrai Nongplalai and Klongyai Reservoirs (MCM.) 0 50 100 150 200 250 300 350 1 31 31 30 30 29 29 28 27 27 26 26 8 Sep 2023 156.12 MCM. 56.72 % 3 reservoirs total capacity .25 MCM. Minimum reservoir volume MCM. URC - RID LRC - RID Average 2006-2022 Maximum 2006-2022 2023 Dead storage .5 MCM. Increased reservoir capacity (temporary) 318.13 MCM. 1 2022
Water situation of Nongplalai, Dokkrai and Klongyai Reservoirs
Water Situation of Dokkrai Nongplalai and Klongyai
Water situation of Dokkrai Reservoir (by Year)
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 10 20 30 40 50 60 70 80 90 100 2004 2005 2006 2011 2014 2015 2016 2017 2018 2019 2020 2021 Capacity Dead storage Increased Capacity URC - RID LRC - RID Average 2006-2022 2023 2023 Water Situation of Dokkrai Reservoir Water volume in Dokkrai Reservoir (MCM.) 0 10 20 30 40 50 60 70 80 90 100 8 Sep 2023 36.26 MCM. 50.79 % Increased reservoir capacity (temporary) 79.41 MCM. Minimum reservoir volume MCM. URC - RID LRC- RID Average 2006-2022 2023 Reservoir Capacity 71.4 MCM. 2022
Water situation of Nongplalai Reservoir (by Year)
Water Situation of Nongplalai Reservoir
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 20 40 60 80 100 120 140 160 180 200 220 2004 2005 2006 2011 2014 2015 2016 2017 2018 2019 2020 2021 Capacity Dead storage Increased Capacity URC - RID LRC - RID Average 2006-2022 2023 2023
Water volume in Nongplalai Reservoir (MCM.) 0 50 100 150 200 8 Sep 2023 95.82 MCM. 58.52 % Reservoir Capacity .75 MCM. Minimum reservoir volume .5 MCM. URC - RID LRC - RID Average 2006-2022 Increased reservoir capacity (temporary) 187.62 MCM. 2023 2022
Water situation of
Klongyai
Reservoir (by Year)
Water Situation of Klongyai Reservoir
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 5 10 15 20 25 30 35 40 45 50 55 2006 2011 2014 2015 2016 2017 2018 2019 2020 2021 Capacity Dead storage Increased Capacity Lowest of tunnel URC - RID LRC - RID Average 2006-2022 2023 2023
Water volume in Klongyai Reservoir (MCM.) 0 10 20 30 40 50 8 Sep 2023 24.04 MCM. 59.96 % Reservoir Capacity .1 MCM. Minimum reservoir volume .5 MCM. URC - RID LRC - RID Average 2006-2022 2023 Increased reservoir capacity(temporary) .465 MCM. Lowest water levelthat canbe transferredthroughtunnel to Nongplalai Reservoir .2 MCM. 2022
Water situation of Prasae Reservoir
Summary of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces 2023
Measure Planned Water Volume (MCM) 2023 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Total
1. Primary measures
Feb until May 2023 Planned PS-KY 7.50 7.80 7.80 7.80 7.80 7.80 7.50 54.00 Planned PS-NPL 1.55 1.40 3.10 3.00 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 27.95 PS-KY* 7.06 2.92 8.82 6.62 3.95 8.48 9.03 8.92 2.02 55.81 Actual PS-NPL 0.39 0.39 1.40 1.42 0.33 0.35 0.38 0.33 0.07 5.06
1.1Water diversion via pumping from Prasae Reservoir * Divert water to irrigation area during
Private Pond Planned Private Pond 1.83 1.60 1.92 0.74 1.74 1.19 1.04 0.89 10.94 Planned Bangpakong 6.87 6.99 7.49 3.81 25.16 Actual Private Pond 0.84 1.17 1.88 1.17 2.62 2.62 1.60 0.03 11.93 Actual Bangpakong 6.51 1.46 7.97
1.2 Divert Water from Bangpakong
River +
Planned KlongSaphan 5.00 10.00 10.00 14.00 11.00 50.00 Actual KlongSaphan 3.05 0.00 0.06 3.11
1.3 Klong Saphan reverse pumping station
Planned 14.00 14.00 14.00 14.00 56.00 Actual 5.17 15.37 1.83 22.37
1.4 Divert Water from Klong Pra Ong Chaiyanuchit
7 Sep 7 Sep 2 Aug 1 Sep 7 Sep 7 Sep
Target Line and Reservoir Simulation in Chonburi
155
Normal Status All Clear) Prepare water reserve
130
Surveillance of water scarcity
155
On 8 Sep 2023
Water Volume 83.12 MCM
Normal Status All Clear)
Prepare water reserve
130
• Divert water from Bang Pa Kong River and Pra Ong Chaiyanuchit (diversion will according to the water situation)
• Increase water diversion from Rayong (diversion will according to the water situation)
155
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
Target Line and Reservoir Simulation in Rayong
On 8 Sep 2023
Water Volume 156.12 MCM or 56.72%
Increase reservoir capacity for temporary 318.13 MCM.
Normal Status All Clear)
Prepare water reserve
Normal Status All Clear)
170
Surveillance of water scarcity
170
• Divert water from Prasae reservoir via Prasae-Klong 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)
220
Water shortage warning
Minimum storage volume 31.70 MCM.
• 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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230 220
Target Line and Reservoir Simulation in Prasae
250
Storage Volume 295.0 MCM
Normal Status All Clear)
250
On 8 Sep 2023
Water Volume 171.28 MCM or 58.10%
Normal Status All Clear)
Prepare water reserve
Surveillance of water scarcity
Prepare water reserve
• 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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