Identify the province Hammanskraal is located in and explain the consequences of unplanned development and pollution of the Apies River.

2.5.1:
Hammanskraal is located in $\boxed{\text{Gauteng}}$ province.

2.5.2:
'Unplanned development' refers to urban or residential growth that occurs without adequate provision for essential services like water supply and sanitation infrastructure, leading to severe issues in these areas.

2.5.3:
Two consequences of 'unplanned development' are:

• $\boxed{\text{Decade-long struggle with water and sanitation issues.}}$
• $\boxed{\text{Water infrastructure in a state of disrepair, leading to frequent leaks and disruptions in water supply.}}$

2.5.4:
The Apies River became polluted because the $\boxed{\text{Rooiwal water-treatment plant was failing to treat wastewater and instead dumped raw or semi-treated wastewater into the river}}$.

2.5.5:
The local municipality can implement several strategies to reduce pollution of the Apies River. Firstly, they must urgently upgrade and properly maintain the Rooiwal wastewater treatment plant to ensure all wastewater is fully treated before discharge. Strict monitoring and enforcement of environmental regulations are essential to prevent the dumping of raw or semi-treated waste. Investing in new, modern wastewater treatment infrastructure where necessary would also improve capacity. Furthermore, the municipality should address unplanned development by ensuring all new settlements have adequate sanitation facilities. Repairing and upgrading the existing water supply network will reduce leaks and disruptions, indirectly easing pressure on the treatment system. Public education on responsible waste disposal and water conservation can also contribute significantly. Finally, implementing a comprehensive river catchment management plan will protect the entire ecosystem from various pollution sources.