Notice Board:

ELECTRICITY INTERRUPTION ON 21 OCTOBER 2018

Residents are advised of a proposed electricity shutdown on SUNDAY, 21 OCTOBER 2018, between the hours of 08h00 and 16h00, in various areas of Nelson Mandela Bay, caused by the temporary shutdown of the College Drive Substation, to allow repairs and maintenance to be carried out on a local transformer.  

Areas affected: Mill Park, St. Georges Park (only end of College Drive Road), Glendinningvale, Greenacres, Scotstown.

Streets affected: Ascot Road, Barris Walk Street, Bradshaw Street, Churchill Road, College Drive, Conyngham Road, Cape Road, Dene Road, Fairford Road, Highbeech Road, Lenox Street, McLean Road, Mill Park Road, Mortimer Road, Nightingale Street, Ramsay Lane, Salisbury Avenue, Wares Road, Way Avenue, Wembley Road, Westview Drive, Woodville Road, Young Road. 

All installations must be treated as live for the duration of the outage. - Apologies are tendered for any inconvenience caused.

  Dam Levels

Last updated:  11 October 2018

Ave all 54.25% of total combined capacity 

DAM

KOUGA

CHURCHILL

IMPOFU

LOERIE

GROENDAL

CAPACITY

53.18%

100%

38.34%

90.48%

62.54%

VOLUME OF WATER

66 955Ml

35 240 Ml

40 547Ml 2 738 Ml 7 280Ml

152 760 Ml


 
Please note that although the level of Loerie dam has increased, it is a small balancing dam and unfortunately does not change the water disaster situation Nelson Mandela Bay is currently in.

Please click here for water saving tips. In SEARCH BOX, type in WATER.

FIGURE 1: CHURCHILL RAINFALL VS 20 YEAR AVE  

Since December 2015 the catchment areas have experienced very low rainfall figures. The graph below indicates the monthly rainfall at Churchill Dam compared to the average rainfall at Churchill dam over the last 20 years. One can see the very low rainfall over the last year.  The month of June 2017 saw the lowest rainfall of the last 20 years with only 2.5mm precipitation for the entire month.

Churchill dam

TABLE 1: DAM STORAGE LEVELS AND CONSUMPTION

Total demand water

November 2015 was the last time our dams were filled to 100% capacity. Note how water demand management has taken consumption down well below the 300 Ml/day mark.

In May 2017 consumption dropped below 260Ml/day, this figure shows the possibilities.

 

The figures in the above table are indicated graphically below.

FIGURE 2: STORAGE CAPACITY OF NMBM’S SUPPLY DAMS

Storage capacity NMBM dams

The figure above compares the current drought to the previous one we had in 2009/10.

The Municipality holds regular meetings with the Department of Water & Sanitation as part of the Algoa Reconciliation Study, to discuss dam levels, drought scenarios and water restrictions.

FIGURE 3: AVERAGE DAILY WATER CONSUMPTION FOR NMBM

Average consumption trend

The blue line indicates an estimate of what the daily consumption would be if no water conservation & demand management measures were introduced.

The green line is what we actually consumed and in the last column you will see the targets we must reach according to the restrictions set by the DWS.

The Municipality has been restricted by DWS on its water allocations by 25% from 1 July 2017.

Some recent photos of the tail end of Churchill dam: