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) |
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