For high-flow hydrants, the NFPA color code light blue indicates a flow rate at or above

For high-flow hydrants, the NFPA color code light blue indicates a flow rate at or above

• A. 500 gpm
• B. 1,000 gpm
• C. 1,500 gpm
• D. 2,000 gpm

Answer: (C)

Hydrant color coding gives a quick visual cue about how much water a hydrant can deliver, so responders can assess supply at a glance. The light blue category is designated for high-flow hydrants with a minimum discharge of 1,500 gpm. That means any hydrant showing light blue can provide at least 1,500 gpm, and often more (such as 2,000 gpm or higher). The important point is the lower bound the color communicates, which is why 1,500 gpm is the correct reference. In practice, you’d confirm exact flow with testing when precise numbers are needed, but the color tells you the hydrant meets the high-flow threshold.

Hydrant color coding gives a quick visual cue about how much water a hydrant can deliver, so responders can assess supply at a glance. The light blue category is designated for high-flow hydrants with a minimum discharge of 1,500 gpm. That means any hydrant showing light blue can provide at least 1,500 gpm, and often more (such as 2,000 gpm or higher). The important point is the lower bound the color communicates, which is why 1,500 gpm is the correct reference. In practice, you’d confirm exact flow with testing when precise numbers are needed, but the color tells you the hydrant meets the high-flow threshold.