Field Sampling and Analysis Plan for 2005 Marine Sediment Sampling

• Main Authors: Teck Cominco, Alaska Inc
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2005
• Subjects: Chukchi Sea; Chukchi
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.369.1686; http://www.dec.state.ak.us/spar/csp/docs/reddog/05marine_sed_fsp.pdf

The purpose of this sediment sampling program is to evaluate current metals concentrations in surface sediments in the Chukchi Sea in the vicinity of the shiploader. The sampling program is a continuation of marine sediment monitoring that was conducted prior to and during the shipping seasons in 2003 and 2004 (Exponent 2003, 2004). However, in light of the decreasing trend in metals concentrations in marine sediments near the port and the relatively low concentrations reported in 2004 (concentrations were below risk-based sediment screening benchmarks; Exponent 2005), the 2005 sampling program will be focused on a subset of stations assessed in previous monitoring events and will be conducted as a single event in September to reflect conditions during the active shipping period only. Major shiploader and lightering barge improvements were made before the 2003 shipping season to further control fugitive concentrate dust emissions at the port. Thus, the 2005 sediment sampling will assess current conditions and monitor changes 1 year after the last sampling event, and 2 years after the implementation of improved fugitive dust controls. 2. Sampling and Analytical Procedures For consistency with previous marine sediment assessment, sampling and laboratory analyses will be conducted using established methods described in the Phase II Field Sampling and