On 26 Feb 2021 02/03/64
1
Overview of water situation in Rayong-Chonburi area on 26 Feb 2021 P2
P4
Chonburi
P1
P3
P5 P6
Private Pond
Reservoir capacity (MCM) Current storage volume 12 (MCM) Percentage of reservoir capacity Useable storage volume Samnakbok (excluding Dead Reserve Pond Storage) (MCM) P7
60.82
P-BPN
P9
P8
Bangphra
Nongkho
Dokkrai
Nongplalai
Klong Yai
Prasae
117.00
21.40
79.41
163.75
40.10
295.00
60.82
13.15
56.34
127.65
15.34
200.36
52%
61%
79%
78%
38%
68%
48.77
12.15
53.34
114.15
12.34
180.36
-
-
-
-
0.038
-1.63
-0.48
Inflow into reservoir (MCM) (On 25 Feb 21)
Bang Phra res. 13.15
Nong Kho res. P10
37
Water volume compared to previous week (-decrease, +increase) (MCM) Total water volume in each area
34
127.65
56.34
Rayong
-2.60
-3.40 -8.89
73.97 MCM (53.4%)
199.33 MCM (72.42%)
15.34
-2.89 -4.77
-2.11
200.36
Prasae res.
Khlong Yai res. Nong Pla Lai res.
Dok Krai res.
-
0.038
P
P11 P12 P-NP3 P13
P14
XX
XX XX
P15
177 Ref: Royal Irrigation Department
Raw Water Pipe Line (EW) P16
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
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
26 Feb 2021 73.972 MCM. 53.45 %
2 Reservoirs total capacity 138.4 MCM.
120
100
80
60
40
20
Minimum reservoir volume 13.05 MCM. URC - RID
0
02/03/64 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
150
140
2004
2005
2006
2011
2015
2016
2018
2019
2020
Capacity
Dead storage
URC - RID
LRC - RID
Average 2006-2020
2021
URC - RID
26 Feb 2021 60.82 MCM. 51.98 %
140
Average 2006-2020
130 120
120
Reservoir Capacity
MCM.
110 100
100
90 80
80
70 60
60
50 40
40
30 20
20
10 0
Minimum reservoir volume
.05 MCM.
URC - RID
0
02/03/64
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
4 Dec
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
Reservoir Capacity
URC - RID
26 Feb 2021 13.152 MCM. 61.46 %
.4 MCM.
20
18
16 15
14
12 10
10
8 6 5
4 Normal useable volume MCM. Minimum reservoir volume MCM.
2 0
0
02/03/64
Jan
Feb
Mar
URC - RID
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
5 Dec
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
26 Feb 2021 199.329 MCM. 72.42 %
Maximum 2006-2020 Average 2006-2020
350
2005 2017 Capacity URC - RID
Increased reservoir capacity (temporary) 318.13 MCM. 300
3 reservoirs total capacity
.25 MCM.
250
200
150
100
50
Minimum reservoir volume Dead storage 0
1
31
Jan
.5 MCM. 1
Feb
MCM. 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
2005 2015 2019 Increased Capacity 2021
Average 2006-2020
2006 2016 2020 URC - RID
2011 2017 Capacity LRC - RID
URC - RID
26 Feb 2021 56.344 MCM. 78.91 %
Increased reservoir capacity (temporary) 79.41 MCM.
Reservoir Capacity 71.4 MCM.
70
70
60
60
50
50
40
40
30
30
20
20
10
10
Minimum reservoir volume
0
0
02/03/64
Jan
Feb
Mar
MCM.
Apr
URC - RID
May
Jun
Jul
Aug
Sep
Oct
Nov
7 Dec
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
26 Feb 2021 127.648 MCM. 77.95 %
Average 2006-2020
200
2006 2016 2020 URC - RID
Increased reservoir capacity (temporary) 187.62 MCM.
180
Reservoir Capacity
.75 MCM.
160 150
140 120 100
100
80
60 50
40 20
0
Minimum reservoir volume
.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
Increased reservoir capacity (temporary) Reservoir Capacity
2014 2018 Dead storage LRC - RID
2015 2019 Increased Capacity Average 2006-2020
URC - RID
26 Feb 2021 15.337 MCM. 38.25 %
Average 2006-2020
50
45 40
2011 2017 Capacity URC - RID
.465 MCM.
.1 MCM.
40
35 30
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
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
Reservoir Capacity
URC - RID
26 Feb 2021 200.36 MCM. 67.92 %
MCM.
250
200
150
100
50
Minimum reservoir volume
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
-
Actual 1.3 Divert Water from Klong Pra Ong Chaiyanuchit
Planned Actual
0.00
25 Feb 0.45 2.41 1.86
1.68
Planned
Bangpakong
30.00
4.00
-
2.86 1.86
0.35
5.75
6.80
Bangpakong
Actual Private Pond
3.00
40.00
25 Feb 1.53 1.16
7.80
7.40
22.00
2.69
Target Line and Reservoir Simulation in Chonburi
Storage Volume 138.40 MCM On 26 Feb 2021 Water Volume 108.82 MCM
155 130
Normal Status (All Clear) 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
Normal Status (All Clear)
On 26 Feb 2021 Water Volume 199.33 MCM (72.42%)
230
220 170
• •
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. 02/03/64
13
Target Line and Reservoir Simulation in Prasae
On 26 Feb 2021 Water Volume 200.36 MCM (67.92%)
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
THANK YOU