Water supply and dam level statistics

Perseverance Dam

 

46.3%
 

The table below provides weekly data for each of the three storage dams, and water consumption figures in litres/person/day for the past week when compared to the same time last year (for Toowoomba residents only).

 

Weekly water supply statistics

1. Water Supply From 15/08/2018 to 21/08/2018        
  Wed Thu Fri Sat Sun Mon Tue Week
Last 7 days: 15/08/2018 16/08/2018 17/08/2018 18/08/2018 19/08/2018 20/08/2018 21/08/2018 Total
Cressbrook Dam                
Production (ML) 0.0 4.9 13.8 11.8 31.4 23.6 17.8 103.4
Rainfall (mm) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Evaporation (mm) 3.6 3.8 4.2 4.6 4.8 6.6 5.2 32.8
Current Storage (ML) 40,520 40,484 40,484 40,449 40,414 40,379 40,309  
Usable Storage (%) 51.4 51.3 51.3 51.3 51.3 51.2 51.1  
Perseverance Dam                
Production (ML) 13.7 14.0 13.8 9.9 0.0 10.8 4.2 66.4
Rainfall (mm) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Evaporation (mm) 3.0 3.6 4.6 4.2 2.6 7.0 5.0 30.0
Current Storage (ML) 9,692 9,669 9,658 9,646 9,634 9,623 9,623  
Usable Storage (%) 36.0 35.9 35.9 35.9 35.8 35.8 35.8  
Cooby Dam                
Production (ML) 18.0 17.8 9.9 5.7 7.0 10.9 4.7 74.0
Rainfall (mm) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Evaporation (mm) 3.2 4.6 5.6 4.4 5.0 6.0 4.4 33.2
Current Storage (ML) 8,312 8,294 8,277 8,260 8,260 8,242 8,208  
Usable Storage (%) 42.2 42.1 42.0 41.9 41.9 41.8 41.7  
Total Dam Storage                
Current Storage (ML) 58,524 58,448 58,419 58,355 58,308 58,244 58,140  
Usable Storage (%) 46.7% 46.6% 46.6% 46.5% 46.5% 46.4% 46.3%  
Water Treatment                
Mt Kynoch WTP (ML) 36.5 39.4 36.9 33.4 42.8 46.2 30.6 265.9
Bores (ML) 7.2 5.5 6.0 5.9 7.9 6.7 6.4 45.5
                 
2. Water Consumption this year                
  Tue Wed Thu Fri Sat Sun Mon Week
Last 7 days: 14/08/2018 15/08/2018 16/08/2018 17/08/2018 18/08/2018 19/08/2018 20/08/2018 average
Toowoomba (ML/d) 42.0 34.5 35.4 31.2 49.1 41.9 19.6 36.2
Treated Water (ML/d) 50.6 43.3 44.5 40.6 58.1 50.0 27.3 44.9
Treated water (L/p/d) 355 304 313 285 408 351 192 315
Residential (L/p/d)               208
Bulk Water (ML/d) 50.6 43.3 44.5 40.6 58.1 50.0 27.3 44.9
Other Shires (ML/d) 8.6 8.8 9.2 9.4 9.0 8.1 7.7 8.7
                 
3. Water Consumption same time last year                
  Tue Wed Thu Fri Sat Sun Mon Week
Last 7 days: 15/08/2017 16/08/2017 17/08/2017 18/08/2017 19/08/2017 20/08/2017 21/08/2017 average
Toowoomba (ML/d) 41.1 35.7 35.7 19.6 36.2 36.2 27.5 33.1
Treated Water (ML/d) 49.0 43.3 46.5 25.6 33.5 42.9 36.4 39.6
Treated water (L/p/d) 344 304 327 180 235 301 256 278
Residential (L/p/d)               153
Bulk Water (ML/d) 49.0 43.3 44.9 25.6 43.8 42.9 36.4 40.9
Other Shires (ML/d) 8.0 7.6 9.2 6.0 7.7 6.8 8.9 7.7
                 
Note: 1. Dams storage figures are as at 9.00 am on the day shown.      
  2. Water consumption figures are for the 24 hr period commencing at 9.00 am  
  on the day shown.            
  3. Usable storage % reflects volume available for supply, not the % of the current volume

 

 our dams supply water to the city and most of the towns to the north and west of Toowoomba.  The dam levels are influenced by rainfall and evaporation within their catchments, and the demand placed on them by usage. The table below offers a comparison of these factors on a daily basis with data recorded for the same time last year.

 

Daily water use figures

 

DAM LEVELS COMPARISON
  Permanent Conservation Measures Permanent Conservation Measures
from 9:00am 20 Aug 2018 to 9:00am Tue Aug 21 2018 to 9:00am Mon Aug 21 2017
Evaporation        
Cooby 4.7 mm 3.0 mm
Perseverance 4.3 mm 2.8 mm
Cressbrook 4.7 mm 3.8 mm
Dam Levels Usable Storage Total Storage Usable storage Total Storage
Cooby 41.7 % 8,208 ML 50.7   % 9,993 ML
Perseverance 35.8 % 9,623 ML 40.8   % 10,973 ML
Cressbrook 51.1 % 40,309 ML 63.8   % 50,299 ML
Combined 46.3% 58,140   ML 56.8% 71,265   ML
Rainfall in the Catchments - previous 7 days    
Cooby 0.0 mm 0.0 mm
Perseverance 0.0 mm 0.0 mm
Cressbrook 0.0 mm 0.0 mm
Total Usage of treated water 44.9 ML 39.6 ML
Rolling 7 day residential usage average (Toowoomba City residents only)
  208 L/p/d 183 L/p/d
         
         
NOTE 1. Usable storage % reflects volume available for supply, not the % of the total storage

 

Recent dam level readings

 

Date Cooby Creek Dam Cressbrook Creek Dam Perseverance Dam
21st August 2018 8208ML 40309ML 9623ML
16th August 2018 8294ML 40484ML 9669ML
15th August 2018 8312ML 40520ML 9692ML
14th August 2018 8346ML 40520ML 9716ML
13th August 2018 8364ML 40555ML 9739ML
9th August 2018 8416ML 40661ML 9762ML
8th August 2018 8416ML 40696ML 9774ML
7th August 2018 8416ML 40731ML 9786ML
6th August 2018 8434ML 40766ML 9786ML

 

 

 

 

 

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