China's Ticking Time Bomb, page-67

May explain the modest initial targets and the delays in finalisation:

"It will boost the business of water treatment companies, An Xin Securities said in a report, although it added that 30 percent of such firms were unable to make a profit at current low water prices.
China has raised charges for waste water discharge, but He at Originwater said they were still not high enough to cover the cost of treatment.
To address that, the country is rolling out a tiered pricing system this year and has started by raising water fees for consumers in wealthier cities such as Beijing."

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