LEED Green Associate (LEED GA) — Question 72

Which of the following statements regarding non-potable water is true?

Answer options

• A. Blackwater can only be used for flush fixtures
• B. Stormwater runoff can be treated and used in a facility's cooling towers
• C. Captured rainwater must be treated before it can be used to irrigate landscaping
• D. Graywater can be used for any household purpose as long as it is not consumed

Correct answer: B

Explanation

Option B is correct because stormwater runoff can indeed be treated and repurposed for cooling towers in a facility. Option A is incorrect as blackwater is not limited to just flush fixtures; it usually requires more stringent handling. Option C is false because while treatment is often recommended for rainwater, it is not always mandatory depending on local regulations. Option D is misleading as graywater has specific allowable uses and cannot be used freely for all household purposes.