How often must USTs be monitored for releases using release detection?

Monitoring underground storage tanks (USTs) for releases using release detection is essential to ensure the prevention of environmental contamination and to maintain compliance with regulations. The correct choice reflects the requirement for USTs to be monitored for releases at least every month.

Monthly monitoring is critical as it helps to identify any potential leaks or releases in a timely manner, reducing the risk of environmental damage and ensuring that safety protocols are upheld. Regular monitoring enables operators to take immediate corrective actions if a problem is detected, which is vital for protecting groundwater and surrounding ecosystems.

Other frequencies, such as weekly or every three months, might not provide sufficient oversight to detect slow leaks, which could go unnoticed for longer periods and cause significant harm. Additionally, annual monitoring, while better than no monitoring, is insufficient for prompt detection and response, making monthly monitoring the best practice to ensure the safety and compliance of UST operations.