City to Rehabilitate Water Supply Pipelines

City to Rehabilitate Water Supply PipelinesRecent survey showed that around 60 percent of the Shenzhen water supply pipelines were found to be corroded and the first phase of repairs can take around five years and will cost 3 billion yuan thus signaling an enormous slate in the upcoming water infrastructure projects that are planned across the city.

According to data corroded pipelines is producing poor water quality out of residential taps and is affecting 1.4 million households across Shenzhen. The problem was first addressed by the Shenzhen Municipal Water Affairs Bureau in 2010 when the bureau announced a plan to upgrade the city water supply pipelines and to improve local drinking water. Authorities states that the drinking water in the city coming from sources is high quality water that passed new national standards. But the water that passes through pipelines in local communities and comes out of residential taps and business might have likely picked up contaminants in transit.

Mostly because the pipes used in most of the Shenzhen communities are made of galvanized steel or cast iron which can corrode overtime and possibly contaminate the water with deposits of rust, calcium and lead. The use of galvanized steel and cast iron pipes has already been banned in China.

Statistics showed that 63.2 percent of the city underground pipes, 68.8 percent of outdoor pipes and 43.5 percent of indoor pipes were made of galvanized steel or cast iron which covered more than 2,460 residential communities and affects 1.35 million households. To replace and repair the aging pipes will cost the city around 6.25 billion yuan. The rehabilitation project will be done in two phases. The first phase is said to be completed between three to five years and cost around 3 billion yuan.

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