QUESTION $1$

$(40)$

$1\mathrm{.}1.$ Estimate the average annual daily demand design flow $($ML$/$day$)$ for a water supply

scheme servicing a new development area close to Boksburg, in Gauteng Province. The

following data have been used for the water services $($on daily basis$)$:

The area has an abattoir of $50$ cattle heads and has $3$ schools having each $300$ learners and

operating between $8$ h $00$ and $14$ h $00.$ There are $4$ churches of $1000m^2$ each and $3$ sports

grounds covering $4000m^2$ each. The community has a combined stand size area of $120$ ha

and is assumed to be highly dense area. The inhabitants of the area will enjoy a wellness

center of $1000m^2.$ Municipal offices will be on a site of $6000m^2.$

$1\mathrm{.}1.$ Calculate the corresponding peakflow $($Megaliter$/$day$)(30)$

$1\mathrm{.}2.$ Based on design guidelines, approximate the real water loss from the water supply system

of the development.

$(5)$

$1\mathrm{.}3.$ Give a rational assessment of your results $(5)$

Note: For question $1\mathrm{.}1$ and $1\mathrm{.}2,$ where applicable use strictly UPPER values in the bracket, as

per newly design guidelines developed by Department of Human Settlements of South

Africa strictly apply. Failure to adhere to new guidelines nullifies your answer.