November 9, 2017

Lower 8.3 Miles of the Lower Passaic River Operable Unit 2

Presentation to The Passaic River Community Advisory Group

Agenda

•Sediment sampling schedule and objectives

•Sample collection metrics

•Sediment sampling locations and progress

•Sampling vessels in use

Sediment Sampling Schedule and Objectives

Sediment Sampling Timeline

Activity

• Pre-mobilization activities

• Mobilization and Site Set-up

• Sediment Sampling

• Laboratory Analyses

Timeframe

• Early August to Early October

• Early to mid-October

• Mid-October to early January 2018

• Late October to late January

Sediment Core Collection and Data Analysis

Sediment cores collected to provide input to dredging and engineered capping design, dredged material handling, dewatering, transportation & disposal planning

•Chemical analysis

•Geotechnical characterization

•Waste characterization

Sample Collection Metrics through November 8, 2017

Sediment core locations planned: 958

Sediment core locations completed: 341 or 36%

Sediment cores collected: 341 for sediment chemistry98 for waste characterization26 for geotechnical data5 DRET/CST

Samples sent to the laboratory: 3,385

Sediment sample analysis types: 3,056 for chemistry235 for waste characterization94 for geotechnical data

Sediment cores collected with Sonic Rig: 30 locations

Sediment cores collected with Vibracore: 146 locations

Sediment cores collected manually: 165 locations

Sediment Sampling Locations and Progress

Sediment Sampling Vessels in Use

The three pontoon boats used for sample collection

Pontoon boats moored at the river access barges

Vibracore Sampling

Vessel awaiting use for sampling

Pontoon boat departing from base barge

Pontoon boat departing from base bargeBarge mounted sonic drill rig

Barge mounted sonic drill rig

Vibracore SamplingBarges used for river access and egress at the Clean Earth property

Sonic Drill Rig Courtesy of Ann Arbor Technical Services (ATS)Access ramp at the Clean Earth property

Core logging at 80-120 Lister Avenue

Sample processing and prep for lab at 80-120 Lister Avenue