On 12 Mar 2021 12/03/64
1
Overview of water situation in Rayong-Chonburi area on 12 Mar 2021 P2
P3 P4
Private Pond
Reservoir capacity (MCM) Current storage volume 12 (MCM) Percentage of reservoir capacity Useable storage volume Samnakbok (excluding Dead Reserve Pond Storage) (MCM) P5
58.00
12.64
Nong Kho res. P7
37
Water volume compared to previous week (-decrease, +increase) (MCM) Total water volume in each area
34
Nongkho
Dokkrai
Nongplalai
Klong Yai
Prasae
117.00
21.40
79.41
163.75
40.10
295.00
58.00
12.64
53.46
126.65
12.66
191.58
50%
59%
67%
77%
32%
65%
45.95
11.64
50.46
113.15
9.66
171.58
-
-
0.25
0.89
0.19
-1.24
-0.27
-1.01
Dok Krai res.
P8
P12
P9
70.64 MCM (51%)
192.76 MCM (68.05%)
191.58
Prasae res.
P
P15
P10
XX XX
P13
Ref: Royal Irrigation Department
-0.49 -5.19
-0.11
XX 177
+1.40
-1.52
Khlong Yai res. Nong Pla Lai res. P11
-
1.33
12.66
126.65
53.46
Rayong
Bangphra
Inflow into reservoir (MCM) (On 4 Mar 21)
Bang Phra res. P6
Chonburi
P1
Raw Water Pipe Line (EW) P14
Existing Pipe Network Constructing Pipe Network
Demand 2564 (MCM.) Supply (MCM.) Pump Station 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
12/03/64
Maximum 2006-2020
2004
2005
2015
2016
2017
2018
2019
2020
Capacity
Dead storage
URC - RID
LRC - RID
Average 2006-2020
2021
160
Maximum 2006-2020 Average 2006-2020
140
URC - RID
12 Mar 2021 70.643 MCM. 51.04 %
2 Reservoirs total capacity 138.4 MCM.
120
2017
100
2021
80
2018 2004
60
2019 40
2005
2015
2020
20
Minimum reservoir volume 13.05 MCM. 2016 0
Jan
Feb
Mar
Apr
May
Jun
URC - RID
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
150 140
2004
2005
2006
2011
2015
2016
2018
2019
2020
Capacity
Dead storage
URC - RID
LRC - RID
Average 2006-2020
2021
URC - RID
12 Mar 2021 58.001 MCM. 49.57 %
140
Average 2006-2020
130 120
120
Reservoir Capacity 117 MCM.
110 100
100
90 80
80
2011
70 60
60
2018
50 40
2004 40
2006
30 20 0
2019 2015 2016
2005
2020
20
10
12/03/64
2021
Minimum reservoir volume 12.05 MCM.
URC - RID
0
Jan
Feb
Mar
Apr
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
26
2004
2005
2011
2015
2016
2018
2019
2020
Capacity
Dead storage
Normal useable volume
URC - RID
LRC - RID
Average 2006-2020
2021
25
24
Average 2006-2020
22 20
URC - RID
12 Mar 2021 12.642 MCM. 59.07 %
Reservoir Capacity 21.4 MCM. 20
18
2021
2011
16
2004
15
14 2018
12
10
10
2005
8
2019
2015
6 5
4
0
2016
Normal useable volume 2 MCM. Minimum reservoir volume 1 MCM.
2
12/03/64
2020
0
Jan
Feb
Mar
URC - RID
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 2006-2020 2015 2019 Dead storage Average 2006-2020
2004 2016 2020 Increased Capacity 2021
2014 2018 Minimum volume LRC - RID
URC - RID
12 Mar 2021 192.764 MCM. 70.03 %
Maximum 2006-2020 Average 2006-2020
350
2005 2017 Capacity URC - RID
Increased reservoir capacity (temporary) 318.13 MCM. 2021
300
3 reservoirs total capacity 275.25 MCM.
250
2017 2018
200
2019 150
2004
2020
2014 2015
100
2016
2005
50
Minimum reservoir volume 26 MCM.
Dead storage 9.5 MCM. 0
1
31
Jan
1
Feb
URC - 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 Dead storage Average 2006-2020
100
Water volume in Dokkrai Reservoir (MCM.)
100
90
90
80
80
Average 2006-2020
2006 2016 2020 URC - RID
2011 2017 Capacity LRC - RID
URC - RID
12 Mar 2021 53.456 MCM. 74.87 %
Increased reservoir capacity (temporary) 79.41 MCM. 2021
70
2005 2015 2019 Increased Capacity 2021
Reservoir Capacity 71.4 MCM.
70
2017
2006
60
60
50
50
2011
2018
2004
40
40
2014
30
30
20
20
10
10
2005
Minimum reservoir volume
0 12/03/64
0
Jan
Feb
Mar
2020
2016
MCM.
Apr
2015
2019
URC - RID
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 Dead storage Average 2006-2020
220 200
2005 2015 2019 Increased Capacity 2021
2011 2017 Capacity LRC - RID
URC - RID
12 Mar 2021 126.648 MCM. 77.34 %
Average 2006-2020
200
2006 2016 2020 URC - RID
Increased reservoir capacity (temporary) 187.62 MCM.
180
2021
Reservoir Capacity 16 .75 MCM. 2020
160 150
140 2011
120 100
100
2018
2004 2014
80
2019
60
2015 50
2016
40 20 0
2017
2006
2005
Minimum reservoir volume 1 .5 MCM.
URC - 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 Lowest of tunnel 2021
55 50
2021
2017 2020
2006
30
2016 2011
20
2019
2014
Minimum reservoir volume 9.5 MCM.
10
2015
5 0
2018
Lowest water level that can be transferred through tunnel to Nongplalai Reservoir 15.2 MCM.
15
10
URC - RID
Reservoir Capacity 40.1 MCM. 40
25
20
2015 2019 Increased Capacity Average 2006-2020
Increased reservoir capacity (temporary) 45.465 MCM.
35 30
2014 2018 Dead storage LRC - RID
12 Mar 2021 12.66 MCM. 31.57 %
Average 2006-2020
50
45 40
2011 2017 Capacity URC - RID
URC - 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 2006-2020
2005
2006
2015
2016
2017
2019
2020
Capacity
Dead storage
URC - RID
LRC - RID
Average 2006-2020
2021
350
Maximum 2006-2020 Average 2006-2020
300
250
URC - RID
12 Mar 2021 191.58 MCM. 64.94 %
Reservoir Capacity 295 MCM.
2021
2006
200
2017 2015
150
2016
2019
100
2005
2020
50
Minimum reservoir volume 20 MCM. URC - 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 2021 Planned Water Volume (MCM) 2021
Measure JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
8.0
8.0
8.0
8.0
8.0
4.00
4.00
4.00
4.00
4.00
SEP
OCT
NOV
DEC
Total
1. Primary measures
1.1Water diversion via pumping from Prasae Reservoir PS: 1. Plans for pumping water from the Prasae reservoir will adjust according to the water situation 2. Prasae – Nong Pla Lai start divert from 5 Jan 2021. Supply water to the community along the pipe. 1.2 Divert Water from Bangpakong River + Private Pond
Planned PS - KY Planned PS- NPL Actual PS-KY Actual PS-NPL
Planned Private Pond
-
3.00
3.00
-
-
1.86
1.68
1.86
Planned
Actual Bangpakong
1.3 Divert Water from Klong Pra Ong Chaiyanuchit
Planned Actual
30.00
4.00
0.00
11 Mar 0.45 3.05 2.27
5.77 0.35
5.75
6.80
Bangpakong
Actual Private Pond
40.00
11 Mar 1.53 1.24 0.34
7.80
7.40
22.00
3.11
Target Line and Reservoir Simulation in Chonburi
Storage Volume 138.40 MCM
155
On 12 Mar 2021 Water Volume 87.38 MCM
Normal Status (All Clear) 130
155
Prepare water reserve •
Surveillance of water scarcity
•
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)
•
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
Storage Volume 138.40 MCM
On 12 Mar 2021 Water Volume 192.76 MCM or 68.05%
Normal Status (All Clear)
220
170
• •
230
220
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)
Surveillance of water scarcity •
Water shortage warning
• •
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. 12/03/64
13
Target Line and Reservoir Simulation in Prasae
On 12 Mar 2021 Water Volume 191.58 MCM or 65.00%
Storage Volume 295.0 MCM
250
Normal Status (All Clear)
Prepare water reserve
• •
Surveillance of water scarcity
Water shortage warning Minimum storage volume 20.0 MCM.
•
250
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
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