The Clean Water Act was amended by the Water Quality Act of 1987.

《 洁净水法案》在1987年修改成《水质法案》。

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Water Quality Standards are the foundation of the water quality-based pollution control program mandated by the Clean Water Act.

描述：环保署水质标准：建立水质污染防治项目，进行清洁水行动。

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Such robots could skim across lakes and other bodies of water to monitor water quality or act as tiny spies.

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Beijing Times says authorities must also act quickly to introduce acceptable quality standards for bottled drinking water to allay public fears about contamination from deteriorating air and water quality as well as polluting industries.

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In 1972 the Clean Water Act further broadened the law, as Congress became concerned about pollution and water quality, spurred by high-profile incidents such as the Cuyahoga River catching fire in 1969.

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