EXH0294019785

This data package presents information compiled by Hart Crowser foUowing the collection and chemical analysis of soil samples at the Black River Quarw for the Third Runway Project. The Black River Quarry is operated by City Transfer incorporated (CTI) and is a source of soil borrow fill material for the Third Runway embankment that is currently being constructed at the Sea-Tat International Airport. Soils at the Black River Quarry consist of native sand and gravel derived from glacial and related alluvial deposits. Work for the project was completed pursuant to our contract with HNTB dated May 1, 1998, as amended, and the sampling and analysis strategy described in the Hart Crowser proposal dated October 5, 2001. Hart Crowser collected the samples on October :3, 2001, at the stockpile locations identified on Figure 1. All site sampling work was conducted following approval and site access authorization from CTI and the Black River Quarry personnel. The objective of the pit sampling and analysis was to perform a baseline chemical characterization of in situ soils from active portions of the Black River Quarry. The soils were analyzed for total metals (priority pollutant metals plus barium) and total petroleum hydrocarbons. Additionally, Synthetic Precipitation Leaching Procedure (SPLP) analyses were conducted for any metal with a total metals concentration that exceeded fill screening criteria listed in the Port of Seattle's (Port's) Section 401 Water Quality Certification (Order #1996-4-0325, Amended -1) dated September 21, 2001. Six representative soil samples from the Black River Quarry were submitted for…

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PSCAA Advisory Council Meeting Agenda
Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
1904 3rd Avenue, Suite 105, Seattle, WA 98101
Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]