Posted 7/8/07
State Of Our Water Storages
Water Storage Data: Comparison of August 2006 and August 2007
Sourced from Melbourne Water website www.melbournewater.com.au
On 3 August 2006, Melbourne Water reported that: "Melbourne's water storages are 47.3% (838,188 million litres) full today. Storages are now at a level 4.8% lower than at the same time last year when they were 52.1% (924,234 million litres) full."
On 2nd August 2007, Melbourne water reports that: "Melbourne's water storages are currently 36% full."
Below is a comparison of the condition of Melbourne's water storages for the
first week in August in 2006, and 2007.
| Reservoir | Capacity (at Full Supply) ML |
2007 Volume ( ML ) 2/8/07 |
2006 Volume ( ML ) 3/8/06 |
2007 % Full 2/8/07 |
2006 % Full 3/8/06 |
|---|---|---|---|---|---|
| Thomson | 1,068,000 | 247,770 | 394,715 | 23.2% | 37.0% |
| Upper Yarra | 200,000 | 127,502 | 95,572 | 63.8% | 47.8% |
| O'Shannassy | 3,000 | 3,086 | 1,864 | 100.0% | 62.1% |
| Maroondah | 22,000 | 16,482 | 7,534 | 74.9% | 34.3% |
| Sugarloaf | 96,000 | 43,245 | 58,563 | 45.0% | 61.0% |
| Yan Yean | 30,000 | 5,955 | 14,018 | 19.9% | 46.7% |
| Greenvale | 27,000 | 17,009 | 21,067 | 63.0% | 78.0% |
| Silvan | 40,000 | 35,652 | 33,840 | 89.1% | 84.6% |
| Cardinia | 287,000 | 140,994 | 211,015 | 49.1% | 73.5% |
| Total | 1,773,000 | 637,695 | 838,188 | 36.0% | 47.3% |
Sourced from GMW's website http://www.g-mwater.com.au (click on Storage Levels at the bottom of the page)
Week Ending 02 Aug 2007
| Percentage Full | Full Supply Level | Capacity at Full Supply Level | Current Volume in Store | Current Level | Weekly Change in Store | % Weekly Change in Store | Volume Same Time Last Year | |
| (mAHD)* | (ML)* | (ML)* | (mAHD)* | (ML)* | (ML)* | |||
| EILDON | 18.0% | 288.90 | 3,334,158 | 600,772 | 256.68 | 35,889 | 1.1% | 772,514 |
| WARAWARANGA BASIN | 35.1% | 121.36 | 432,360 | 151,862 | 115.65 | 12,612 | 2.9% | 145,012 |
| GREEGREENS LAKE | 47.8% | 102.20 | 32,500 | 15,533 | 100.02 | 0 | 0.0% | 12,538 |
| NILLNILLAHCOOTIE | 32.6% | 264.50 | 40,400 | 13,190 | 257.62 | 414 | 1.0% | 23,175 |
| MOKOAN | 12.6% | 166.90 | 365,000 | 46,003 | 161.68 | 1,844 | 0.5% | 107,520 |
| EPPALOCK | 3.8% | 193.91 | 304,651 | 11,686 | 171.85 | 997 | 0.3% | 10,829 |
| CAIRN CURRAN | 5.7% | 208.46 | 147,130 | 8,438 | 192.01 | 438 | 0.3% | 8,183 |
| TTULLAROOP | 9.6% | 222.80 | 72,950 | 6,990 | 208.19 | 80 | 0.1% | 10,683 |
| LLAANECOORIE | 33.3% | 160.20 | 8,000 | 2,660 | 158.51 | 47 | 0.6% | 1,568 |
| RREEDY/MIDDLE | 86.7% | 74.90 | 6,000 | 5,203 | 74.7 | -37 | -0.6% | 5,165 |
| TTHIRD LAKE | 102.0% | 74.60 | 2,800 | 2,856 | 74.64 | 0 | 0.0% | 2,765 |
| KKANGAROO/RACECOURSE | 98.6% | 73.90 | 39,200 | 38,660 | 73.85 | -60 | -0.2% | 34,630 |
| NEWLYN | 13.3% | 532.09 | 3,300 | 438 | 526.73 | 60 | 1.8% | 1,216 |
| HEPBURNS | 0.6% | 516.54 | 3,000 | 18 | 513.08 | 3 | 0.1% | 331 |
| DARTMOUTH | 14.8% | 486.00 | 3,906,000 | 579,200 | 406.17 | 15,039 | 0.4% | 2,536,122 |
| HUME | 20.6% | 192.00 | 3,038,000 | 626,812 | 174.8 | 31,729 | 1.0% | 596,586 |
| MULWALA | 83.2% | 124.90 | 117,500 | 97,758 | 124.45 | -3,641 | -3.1% | 110,698 |
| KOW SWAMP | 63.4% | 83.13 | 51,710 | 32,782 | 82.37 | 0 | 0.0% | 34,390 |
| WILLIAM HOVELL | 102.4% | 408.14 | 13,500 | 13,824 | 408.24 | 156 | 1.2% | 6,832 |
| BUFFALO | 79.2% | 264.40 | 24,000 | 19,014 | 263.01 | 87 | 0.4% | 13,711 |
| TOTAL | 19.0% | 11,942,159 | 2,273,699 | 95,657 | 0.8% | 4,434,468 | ||
| * mAHD = metres at Australian Height Datum or metres above sea level | ||||||||
| * ML = megalitres | ||||||||
MRRA Comment; 111 of 20 storages under Goulburn Murray Water's jurisdiction are holding more water than they did this time last year (shown in blue). Overall, these storages are currently holding 2,274 million megalitres (19% full), when last year at this time they held 4,435 million megalitres. Total combined capacity of all of these storages is 11,942 million megalitres. Lake Eppalock is of interest because Macedon Ranges supplies water to this storage.
Water supply & usage
Sourced from Coliban Water's website www.coliban.com.au/click Reservoir levels (on right)
| Total Coliban Storages (incl. Holding Basins) - Last updated Jul 30, 2007 | |||
| Max ML | Current ML | % Full | |
| Barkers Creek | 1690 | 648 | 38.3% |
| Caledonia | 215 | 68 | 31.6% |
| Eppalock (Coliban share) | 54900 | 2419 | 4.4% |
| Lauriston | 19790 | 5055 | 25.5% |
| Malmsbury | 17780 | 1560 | 8.8% |
| McCay | 1360 | 1130 | 83.1% |
| Sandhurst | 2590 | 1214 | 46.9% |
| Upper Coliban | 37480 | 5950 | 15.9% |
| Total Storage | 135805 | 18044 | 13.3% |
Please note that Spring Gully Reservoir has been removed from the listing of supply storages as it is now holding recycled water which will be used on public parks and gardens, sporting grounds and some rural irrigation.
MRRA Note:
Lauriston, Malmsbury and Upper Coliban Reservoirs are located within Macedon Ranges Shire and supply water to Kyneton and Castlemaine (and eventually) Eppalock at Bendigo.
Water storage levels at 27 July 2007
Sourced from Western Water's website http://www.westernwater.com.au
| Reservoir | Capacity | Current % of storage |
| Rosslynne Reservoir: | 25,368ML | 4.92% |
| Lake Merrimu: | 32,516ML | 17.48% |
| Pykes Creek: | 22,119ML | 8.69% |
| Campaspe and Reservoir B&C: | 366ML | 98.50% |
| Kerrie Reservoir: | 297ML | 69.20% |
| Melbourne Water Storage Level: | 1,773,000ML | 35.20% |
It is worth noting the differences in (full) capacity when looking at the % of water in these storages.
For example, based on the figures given here, Rosslynne Reservoir at 4.92% is holding 1,248 megalitres; Campaspe and Reservoir B&C at 98.5% is holding 361 megalitres; and Kerrie Reservoir at 69.2% is holding 205.5 megalitres, a total of 4,915 megalitres.
Rosslynne is not being used for drinking water supplies at present (because it's virtually empty). Campaspe and B&C Reservoirs supply Woodend, and Kerrie Reservoir supplies Romsey's drinking water.