Floyd|Snider Staff Publish on Deriving Representative Background Concentrations at Sediment Sites

Dr. Allison Geiselbrecht, along with other members of the Sediment Management Work Group, have published an article, “Important Considerations in the Derivation of Background at Sediment Sites,” in the journal Integrated Environmental Assessment and Management. The article details the scientific approach to determining representative background concentrations of contaminants at a sediment site while taking into account natural and anthropogenic sources that may continue to affect the site even after remediation. The article states, “Representative background concentrations are critical for putting site-related risk into context, developing a cost-effective and technically feasible remedial approach, understanding the potential for recontamination, and ensuring long-term remedy success.” Dr. Geiselbrecht has participated in the successful development of an ASTM Standard Guide for Sediment Corrective Action – Monitoring (ASTM E3164-18, available at with Appendix X2 concerning the derivation of background. Dr. Geiselbrecht is currently participating in an ASTM Standard Guide concerning the determination of representative background concentrations. The group also presented their work during the International Conference on Remediation and Management of Contaminated Sediments in New Orleans, February 2019, at a session titled “Scientific Methods for Determining Anthropogenic Background.”