A facility is conditioned exempt from silver recovery requirements if it generates less than how many gallons per month?

• A. 100 gallons
• B. 300 gallons
• C. 500 gallons
• D. 1000 gallons

Answer: (C)

The concept being tested is regulatory exemption based on monthly volume for silver-bearing waste. If a facility generates less than 500 gallons of silver-bearing waste per month, it is conditioned exempt from the silver recovery requirements, meaning it does not have to install or operate a silver recovery system. This threshold is set to reduce regulatory burden for very small operations while still addressing environmental concerns from silver discharge. If monthly generation is at or above 500 gallons, the facility would be subject to the standard silver recovery requirements. Thus, 500 gallons per month is the cutoff, with amounts below that qualifying for the exemption.