It’s to “correct mistakes”.
The private sector can play a role in poverty alleviation by primarily offering jobs to people out of work ie by providing employment directly in the company or indirectly in associated industries that get business from the enterprise in question which may be supplier or a contractor for say the principal mining business.
The subordinate clause is : " which had been dumped into the city water system "
We use cars to get to places - cars are the most effective way of short to medium distance transport and are used by 86% of Americas.
We use cars to calm down - Nothing is better when you are about to go into a rage than going for a long drive with the stereo up and nothing but you and your thoughts.
We use cars to live in - Some people fall on hard times and have to live in their cars for a while. It's more common than you might think.
We use cars to transport supplies - People use cars and other vehicles to carry things to far away places.
Hope this helped. Have a great day!