Which water supply type would be most appropriate for collecting precipitation and storing it for later use?

• A. Rainwater
• B. Wells
• C. Condensate
• D. Blowdown

Answer: (A)

Rainwater harvesting is the method for collecting precipitation and storing it for later use. It captures rainfall from roofs or other surfaces, channels it into a storage tank or cistern, and provides water for irrigation when needed. This setup often includes a first-flush filter to keep debris out and may include simple treatment for non-potable uses. The other options don’t fit this purpose: wells draw groundwater, condensate comes from cooling systems and isn’t a primary rain-based supply, and blowdown is a boiler water management practice used to control impurities.