Summary
My Summary is when there was a big earthquake that happened in Christchurch in 2011. There was a guy that was fixing the water supply down the drain in the road. There was a business that they have to try and fix the drain that going towards the toilet water and the shower water down the sewage. When it rains gutter collects all the waters and it drop down and goes down the drain. When the business people was building up more building they added up more wastewater in Christchurch. The concrete wall was build to line up the line for the trenches.
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