Which of the following is a type of graywater?

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试卷: LEED GA模拟题A[查看]
Which of the following is a type of graywater?
A: Rainwater collected in a retention pond
B: Stormwater collected and held in a cistern
C: Wastewater from urinals
D: Wastewater that has not come in contact with toilet waste or kitchen sinks

参考答案: D

本题解释:
This is stormwater;This is stormwater;This is blackwater; Graywater is defined by the Uniform Plumbing Code (UPC) as untreated house-hold wastewater which has not come into contact with toilet waste or kitchen sinks.

Graywater includes used water from bathtubs, showers, bathroom wash basins, and water from clothes-washer and laundry tubs. It does not include water from kitchen sinks or dishwashers