Summary of the water volume and mitigation measures in Rayong and Chonburi Provinces for 2023 On 17th November 2023 20/11/66
1
Overview of water situation in Rayong-Chonburi area on 17th Nov 2023 P2
P3 P4
Private Pond
Chonburi
Detail
P1
Reservoir capacity (MCM) (Temporary increase) Current storage volume 17.00 (MCM) on 17 Nov 2023 Percentage of reservoir capacity Samnakbok Useable storage volume Reserve Pond (excluding Dead Storage) (MCM) P5
BangPhra
Nong Kho
Dokkrai
Nong Pla Lai
Klong Yai
117.00
21.40
71.40 (79.41)
163.75 (187.62)
40.10 295.00 (51.10)
85.68
11.01
57.11
164.95
32.13
279.05
73%
51%
80%
101%
80%
94.6%
73.63
10.01
54.11
151.45
29.13
259.05
0.213
0.392
0.226
Inflow into reservoir (MCM) (On 16 Nov 2023)
85.68
Bang Phra res. P6
11.01
Nong Kho res. P7
48.00
Water volume compared to previous week (-decrease, +increase) (MCM) Total water volume in each area
38.00
+2.68
32.13
Dok Krai res. P12
P8
P11
P9
Prasae
0.00
0.830 +0.09
+1.15
+4.05
+0.09 -4.72
+2.77
+5.29
96.69 MCM (69.9%)
254.18 MCM (92.35%)
Ref: water situation from RID on 17 Nov 2023
279.05 Prasae res.
Khlong Yai res. Nong Pla164.95 Lai res.
57.11
P
P15
P10
Normal 50.01-80.00% Emergency 30.01-50.00%
Critical <30.00% XX Demand 2023 (MCM.)
XX XX
P13
156.60
Rayong
Supply (MCM.) Pump Station
Raw Water Pipe Line (EW) P14
Existing Pipe Network Constructing Pipe Network
Raw Water Pipe Line (RID) Existing Pipe Network Constructing Pipe Network
Water situation of Bangphra, Nongkho Reservoir Water volume in Bangphra and Nongkho Reservoirs (MCM.)
Water Situation of Bangphra and Nongkho Reservoirs
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Maximum 2006-2022 2016 2020 URC - RID 2022
2004 2017 2021 LRC - RID
2015 2019 Dead storage 2023
17 Nov 2023 96.69 MCM. 69.86 %
Maximum 2006-2022
160
2005 2018 Capacity Average 2006-2022
140
2 Reservoirs total capacity 138.4 MCM.
120
2022
URC - RID
Average 2006-2022
2023
100
1
80
60
40
20
LRC - RID
Minimum reservoir volume 13.05 MCM. 0
20/11/66
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec 3
Water situation of Bangphra Reservoir (by Year)
Water volume in Bangphra Reservoir (MCM.)
Water Situation of Bangphra Reservoir 2004 2015 2020 URC - RID 2023
150 140
2005 2016 2021 LRC - RID
2006 2018 Capacity Average 2006-2022
2011 2019 Dead storage 2023
URC - RID
17 Nov 2023 85.68 MCM. 73.23 %
140
Average 2006-2022
130 120
120
Reservoir Capacity
MCM.
110 100
100
80
2022
2023
90 80
70 60
60
50 40
40
30 20
20
10 0
Minimum reservoir volume
.05 MCM.
Jan
Apr
LRC - RID
0
20/11/66
Feb
Mar
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec 4
Water situation of Nongkho Reservoir (by Year)
Water volume in Nongkho Reservoir (MCM.)
Water Situation of Nongkho Reservoir 2004 2016 2021 URC - RID 2023
26
2005 2018 Capacity LRC - RID
24
20
2015 2020 Normal useable volume 2023
URC - RID
17 Nov 2023 11.01 MCM. 51.47 %
25
22
2011 2019 Dead storage Average 2006-2022
Reservoir Capacity
.4 MCM. 2022
20
Average 2006-2022
2023
18
16 15
14 12
10
10
8 6 5
4 Normal useable volume MCM. Minimum reservoir volume MCM.
2 0
LRC - RID
0
20/11/66
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec 5
Water situation of Nongplalai, Dokkrai and Klongyai Reservoirs
Water volume in Dokkrai Nongplalai and Klongyai Reservoirs (MCM.)
Water Situation of Dokkrai Nongplalai and Klongyai Reservoirs
380 360 340 320 300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0
Maximum 2006-2022 2015 2019 Minimum volume LRC - RID
2004 2016 2020 Dead storage Average 2006-2022
2014 2018 Capacity URC - RID 2023
URC - RID
17 Nov 2023 254.18 MCM. 92.35 %
Maximum 2006-2022 Average 2006-2022
350
2005 2017 2021 Increased Capacity 2023
1
Increased reservoir capacity (temporary) 318.13 MCM. 300
2023
3 reservoirs total capacity
.25 MCM.
250
2022 200
150
100
50
Minimum reservoir volume
Dead storage 0
1
31
Jan
.5 MCM. 1
Feb
MCM. LRC - RID
31
Mar
30
Apr
30
May
29
Jun
29
Jul
28
Aug
27
Sep
27
Oct
26
Nov
26
Dec
Water situation of Dokkrai Reservoir (by Year) Water Situation of Dokkrai Reservoir 2004 2014 2018 Capacity LRC - RID
100
Water volume in Dokkrai Reservoir (MCM.)
100
90
90
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
2005 2015 2019 Dead storage Average 2006-2022
Average 2006-2022
2006 2016 2020 Increased Capacity 2023
2011 2017 2021 URC - RID 2023
URC - RID
17 Nov 2023 57.11 MCM. 79.98 %
Increased reservoir capacity (temporary) 79.41 MCM. 2023
0
2022
Reservoir Capacity 71.4 MCM.
Minimum reservoir volume
MCM.
Jan
Apr
LRC- RID
0
20/11/66
Feb
Mar
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec 7
Water situation of Nongplalai Reservoir (by Year)
Water volume in Nongplalai Reservoir (MCM.)
Water Situation of Nongplalai Reservoir 2004 2014 2018 Capacity LRC - RID
220
2005 2015 2019 Dead storage Average 2006-2022
Average 2006-2022
180
Increased reservoir capacity (temporary) 187.62 MCM. 2023
2011 2017 2021 URC - RID 2023
URC - RID
17 Nov 2023 164.95 MCM. 100.73 %
200
200
2006 2016 2020 Increased Capacity 2023
Reservoir Capacity
.75 MCM.
160 150
2022
140 120 100
100
80 60 50
40 20
0
Minimum reservoir volume
.5 MCM. LRC - RID
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Water situation of Klongyai Reservoir (by Year)
Water volume in Klongyai Reservoir (MCM.)
Water Situation of Klongyai Reservoir 2006 2016 2020 Increased Capacity Average 2006-2022
55 50
Increased reservoir capacity (temporary) Reservoir Capacity
2014 2018 Capacity URC - RID 2023
2015 2019 Dead storage LRC - RID
URC - RID
17 Nov 2023 32.13 MCM. 80.12 %
Average 2006-2022
50
45 40
2011 2017 2021 Lowest of tunnel 2023
.465 MCM.
.1 MCM.
40
2023
35 30
2022 30
25 20
20
Lowest water level that can be transferred through tunnel to Nongplalai Reservoir
15
10
.2 MCM.
Minimum reservoir volume .5 MCM.
10
5
0
LRC - RID 0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Water situation of Prasae Reservoir
Water volume in Prasae Reservoir (MCM.)
Water Situation of Prasae Reservoir
360 340 320 300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0
Maximum 2006-2022
2005
2006
2015
2016
2017
2019
2020
2021
Capacity
Dead storage
URC - RID
LRC - RID
Average 2006-2022
2023
2023
350
Maximum 2006-2022 Average 2006-2022
300
250
Reservoir Capacity
URC - RID
17 Nov 2023 279.05 MCM. 94.59 %
MCM.
2023
2022
200
150
100
50
Minimum reservoir volume
MCM. LRC - RID
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Summary of water shortage prevention and mitigation measures in Rayong and Chonburi Provinces 2023 Planned Water Volume (MCM) 2023
Measure JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Total
7.50
7.80
7.80
7.80
7.80
7.80
8.06
54.00
0.25
0.25
0.25
0.25
5.00
7.50
6.88
29.68
1. Primary measures
1.1Water diversion via pumping from Prasae Reservoir * Divert water to irrigation
area during Feb until May 2023
1.2 Divert Water from Bangpakong River + Private Pond
Planned PS - KY Planned PS- NPL PS-KY*
1.55
1.40
3.10
3.00
0.25
Actual PS-NPL
0.39 0.39 1.40 1.42 0.33 0.35 0.38 0.33 0.39
Planned Private Pond
1.83
1.60
1.92
0.74
1.74
1.19
Planned
0.84
13.32
6.99
7.49
3.81
2 Aug
1.17 1.88 1.17 2.62 2.62 1.60 0.03
10.95 25.16
11.93 16 Nov 3.57
24.83
5.00 10.00 10.00 14.00 11.00
50.00
10 Oct 2.87 0.00
7.94
Planned
14.00 14.00 14.00 14.00
56.00
Actual
5.17 15.37 11.57 12.43 8.59
6.51
Bangpakong
Planned 1.3 Klong Saphan reverse KlongSaphan
Actual KlongSaphan
1.4 Divert Water from Klong Pra Ong Chaiyanuchit
16 Nov 5.60 3.32
0.89 6.87
Actual
pumping station
75.92
1.04
Bangpakong
Actual Private Pond
16 Nov 4.48
7.06 2.92 8.82 6.62 3.95 8.48 9.03 8.92 8.09 8.91
0.51
0.48
1.61
0.00
7.80
2.47
8.36
16 Nov
49.4
Target Line and Reservoir Simulation in Chonburi
On 17 Nov 2023 Water Volume 121.80 MCM
155
Normal Status (All Clear) Prepare water reserve 130
155
•
•
Water shortage warning Minimum storage volume15.05 MCM.
Prepare water reserve 130
•
Surveillance of water scarcity
Normal Status (All Clear)
• •
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)
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)
On 17 Nov 2023 Water Volume 254.18 MCM or 92.35%
230 Prepare water reserve
220 170
Normal Status (All Clear) 220 170
• •
Surveillance of water scarcity •
Water shortage warning
(Temporary capacity 79.90%)
• •
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) 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
Minimum storage volume 31.70 MCM. 20/11/66
13
Target Line and Reservoir Simulation in Prasae
On 17 Nov 2023 Water Volume 279.05 MCM or 94.9%
Storage Volume 295.0 MCM
Normal Status (All Clear) 250 Prepare water reserve
• •
Surveillance of water scarcity
Water shortage warning Minimum storage volume 20.0 MCM.
•
250
Normal Status (All Clear) 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)
• Reduce water consumption for all activities
250
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