Is it true that a release of more than 100 lbs of NH3 in 24 hours is reportable?

The statement is true. In the context of ammonia (NH3) releases, the United States Environmental Protection Agency (EPA) has established certain reporting thresholds under the Emergency Planning and Community Right-to-Know Act (EPCRA) and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Specifically, any release of ammonia of more than 100 pounds within a 24-hour period is considered reportable.

This requirement aims to ensure that local agencies and communities are informed of significant chemical releases that could potentially pose a threat to public health or the environment. It is essential for facilities that handle ammonia to be aware of these regulations to comply appropriately and maintain safety standards.

While there are higher thresholds for other substances (like certain hazardous substances where the threshold may be 1,000 pounds), the threshold for ammonia specifically is set at 100 pounds. Hence, the response is grounded in established environmental regulations, making it imperative for operators to stay informed and adhere to reporting requirements.