Mossel Bay rain makes little difference to dam level

Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems – 18 July 2010

The rain that fell last weekend was most welcome from an agricultural and gardening point of view, but the 31 mm received in the catchment area of the Wolwedans Dam was again unfortunately insufficient to make much of a difference to the level of the dam, says the Municipality in a news release on the water situation in Mossel Bay.

It is anticipated that the Wolwedans Dam will be empty by October 2010

The dam’s level rose by about 0,4%, which is equal to 100 megalitres of water and about three to four days of extraction from the dam by PetroSA, farmers and the Municipality. It is therefore still anticipated that the dam will be empty by October 2010, unless sufficient rain is received before then

Although the much smaller Ernst Robertson dam is more than 100% full, water from this dam is released into the Wolwedans Dam. The effect of the Ernst Robertson dam as well as the five megalitres a day of purified effluent water supplied to PetroSA from the newly commissioned Reverse Osmosis plant at Hartenbos has been taken into account in determining the date on which Mossel Bay is expected to run out of potable water at present consumption levels.

“The rains in June and July so far were obviously most welcome, but unfortunately did not buy us much extra time. It did, however, have the effect of generally greening the environment, and this may perhaps create a perception that the situation is not as serious as people are told. I, however, want to reiterate that the situation remains extremely serious and is in fact deteriorating. The water restrictions also remain in place. Continue reading