The constant in and outflow of water will cause the water level in the dam to fluctuate, and the smaller the balancing dam the larger and more rapid such fluctuations will be
THERE has been a slight increase in water storage in the Northern Cape following the recent rains in the Province.
According to the Department of Water and Sanitation’s weekly State of Reservoirs report, the water storage in the Province has increased from 77.9% to 98% in three weeks.
The Vaal River has increased from 74.5% to 75% while the Orange River has increased from 73% last week to 74.6%.
The Douglas storage weir is currently at 108.3% and the Vaalharts storage weir is 84.1%.
Spitskop is at 37.1%, Boegoeberg at 78.4% and the Karee Dam at 22.1%.
Department spokesperson Amogelang Moholoeng pointed out yesterday that most of these dams were, however, balancing dams designed to act as a multipurpose facility.
“Depending on the size of the dam, it may happen that the volume of water passing through the dam in the course of a day may exceed the capacity of the dam. The constant in and outflow of water will cause the water level in the dam to fluctuate, and the smaller the
balancing dam the larger and more rapid such fluctuations will be. Water levels at these dams can therefore be expected to vary considerably from week to week.”
Meanwhile, the latest Crop Estimates Committee’s (CEC) production estimate report showed an upward revision to the February estimate for maize to 10.56 million tons as a result of the good rains since early January that stimulated farmers to increase the pace of planting.
FNB Corporate Affairs pointed out that although the current estimate was down 16% year-on-year but up 1% on the February estimate, it was better than earlier expectations of a further cut in maize output.
“The expected carry over stock of 3.2 million tons by the end of the 2018/19 marketing season will bring the total supplies for 2019/20 to 13.76 million tons which will meet the country’s consumption requirements. Thus, we expect limited upside for maize prices in the medium term should the rand/ US dollar exchange rate continue to trade at current levels.”
As with maize, the oilseed complex also faces a decrease in output due to the reduced area relative to last year. “The sunflower production forecast came in unchanged at 563 590 tons and is still down 35% year-on-year, which poses upside risk to the price outlook.