How long can petroleum contaminated soils (PCS) be stockpiled onsite without additional approval?

Petroleum contaminated soils (PCS) can be stockpiled onsite for a maximum of 30 days without requiring additional approval. This 30-day timeframe is established to ensure that the contaminated materials are managed efficiently and mitigated to prevent environmental harm. Keeping the soils onsite for longer than this period can pose risks, including potential impacts on groundwater or nearby ecosystems, and may necessitate further regulatory oversight or additional steps for remediation. This regulation helps ensure that contaminated sites are addressed in a timely manner, promoting public health and environmental safety.