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Water Management

Key Functions

  • Water management by implementing cultivation calendars and patterns, scheduling irrigation and rotational issues, monitoring water deliveries.
  • Implementation of integrated participating in water management programs including setting up and monitoring of suitable water management programs.
  • Study the water resources available and prepare water resources master plan.
  • Coordination and participation of weekly water panel.
  • Guiding, Monitoring and Handling drought situations.
  • Management on farm water distribution system.
  • Direction on catchment protection and water shed management.
  • Focal point of Sri Lanka committee of International Commission of Irrigation & Drainage (ICID)

Water Panel Decisions

Decisions arrived at the Weekly Operational Meeting held on 30th May 2014
Week No 34
Date effected 2nd June 2014
Reservoir Capacity(MCM) Active Storage (MCM) Active %
Mahaweli
GDR (Kotmale) 172.9 70.5 46.8%
Victoria 721.2 102.5 14.9%
Randenigala 861.4 249.9 53.4%
Rantembe 7.0 0.1 4.7%
Bowatenna 23.5 11.1 52.4%
Walawe
Samanalawewa 278.0 60.5 27.7%
Udawalawe 278.2 175.0 70.0%
Irrigation System
Kalawewa 123.7 77.9 71.7%
Kandalama 33.8 21.4 71.3%
Subject Recommended action Remarks
Power releases
Victoria CEB Requirement minimize
Bowatenna 450 cms

 

11 MW @9 hrs

Polgolla Peaking only
no spill
Samanalawewa CEB Requirement Minimize
GDR (Kotmale) Balance to Polgolla Requirement
Randenigala Balance to Rantambe Requirement
Rantembe

45 cms

28 cms

 

17hrs@15 MW + peaking (3rd &4th)

10hrs@ 15MW + Peakiing

 

 

Irrigation Diversions
Minipe LB

20 Cms (3rd & 4th June)

16 Cms Other days

Minipe RB Balance
Minipe D/S nil
Bowatenne to
(a)Dambuluoya

150

(b) KH Canal nil
(I)  Huruluwewa @ KH bifurcation nil
(II) Kandalama @ KH bifurcation Nil
Elahera

 

450cfs

 


Angamedilla Inflow
System A
Kaltota 1 cms

 

Other important decisions in brief
EIC Mapakada tp adjust the Minipe RB gates to facilitate the Minipe LB issues.
NWSDB to find an alternative to facilitate the drinking water requirement during Poson Festival in Anuradhapura.
WMP allow to use 5 MCM for Kaltota & 30 MCM for Katupath Oya for Yala 2014 upto 20th July.

 







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