API PUBL 4709 pdf download

API PUBL 4709 pdf download.Risk-Based Methodologies for Evaluating Petroleum Hydrocarbon Impacts at Oil and Natural Gas E&P Sites This manual presents a risk-based approach for the management of hydrocarbon-impacted soil at E&P sites that emphasizes the protection of human health. This risk-based approach was derived from the work of the Total Petroleum Hydrocarbon Criteria Working Group (TPH- CWG) as later...