Applications

• Identify vertical as well as horizontal contaminant distribution with transect monitoring
• Ideal for shallow wells in high water table environments
• Multilevel water sampling and level monitoring in unconsolidated soils or bedrock
• Dewatering impact assessments at construction & mining sites
• Mass transport calculations and mass flux estimation
• Monitoring of natural attenuation or remediation processes, and documentation of its effectiveness
• VOC, MTBE and Perchlorate monitoring at NAPL sites
• Determination of the best location for reactive barrier walls, the Waterloo Emitter and other remediation methodologies
• Vapor monitoring with special wellhead seals
• Helps optimize design and performance assessment of remedial options

Advantages of the CMT Multilevel System

• Low cost and easy to install and use
• No joints - one smooth surface for easy, effective sealing
• Up to 7 depth-discrete zones in a single tube
• Locate ports and seals exactly where desired Installs quickly in large direct push casing and boreholes
• One 7-Channel CMT System can be completed by two people in under 3 hours, 3-Channel even faster
• Borehole not left open to allow cross contamination
• Isolated zones ensured using sand and bentonite layers or 3-Channel Cartridges - reliable and inexpensive
• Minimizes the risk of producing new contaminant pathways

One CMT System - Two Sizes
Features	7 Channel	3 Channel
Tubing diameter	1.7” (43 mm)	1.1” (28 mm)
Monitoring zones	up to 7	up to 3
Channel diameter	6-Pie: 0.4” (10 mm) 1-Hex: 3/8” (9.5 mm)	3-Hex: 3/8” (9.5 mm)
Channel volume	40 mL / ft 30 mL / ft (center)	30 mL / ft
Installation options	Sand & bentonite backfill Natural formation collapse	Bentonite & sand cartridges Sand & bentonite backfill Natural formation collapse
Coil lengths (Coil 4 ft. dia.)	100 ft. (30 m), 200 ft (60 m) & 300 ft. (90 m)	100 ft. (30 m), 200 ft. (60 m) & 500 ft. (150 m)
Centralizer sizes (other sizes optional)	4.4” standard (112 mm)	3.3” standard (84 mm)
Borehole diameter recommended for backfill installations	4” (100 mm) and larger	3.5” (89 mm) and larger
Borehole diameter for installations with seal and sand cartridges	N/A	2.8” - 3.5” (71 mm - 89 mm)