Geo-tube dewatering technology
Schematic of Remedy Steps and Metrics
SECTIONS 1, 2, 3
Total Length: 3 mi (34%)
Sediment Volume: 41.2k cu.yd. (43%)
coffer dam
additive to dewater/ bulk sediments
upheave concern
excavator
dredge
wet mined sludge
how?
dewatered
transportation
non-RCRA hazardous
non-RCRA hazardous
transport to landfarm
landfarm at a $30/ton
Issues:
• Excavation of only necessary
waste
• Attainment/measurement of
excavation
• Mass wasting from canal
sideslopes
• Upwarp from canal bottom from
slightlypressurized sand aquifer
• Sludge dewatering method
• VOC and Odor management
• Access and transportation from
canal
• Other disposal approaches that would
beat
$30/cu.yd.
• Water quality during excavation
• Pipelines and utilities
• Outfall diversions
• Wildlife and wetlands issues
slope stability concerns
if canal contents are removed
if canal contents are removed