Solinst 403 CMT Multi-Level Well Systems
- Inexpensive Lower cost than multiple wells
- Two Systems Available Seven channel system (up to 7 depth discrete zone) and three channel system (up to 3 depth discrete zones)
- Easy to Install. Install using any drilling method - including direct push Seven channel system can be installed in less than 3 hours by two people. The three channel system can be installed even faster.
Overview
The 403 CMT Multilevel Well and Groundwater Monitoring System provides site assessors with a clearer understanding of three-dimensional groundwater slow and the distribution of contaminants in the subsurface. Monitor up to 7 zones in one 1.7â?? well, or 3 in the narrow 1.1â?? (28mm) Multilevel Well System.
This is a simple, cost-effective multilevel system which can obtain discrete zone groundwater data. It allows remediation strategies to be targeted more precisely, focussing efforts in the most effective manner.
The CMT Multilevel System makes the accurate monitoring of contaminant plumes much more affordable. It provides detailed data both vertically and horizontally. The monitoring zones can be set where needed and its single tube design allows reliable seals between zones.
There are two systems available. The 1.7â?? (43mm) polyethylene tubing which is segmented into seven channels, allowing groundwater monitoring at up to 7 depth discrete zones. The 3-Channel System uses the same material and construction but has been designed for narrow installations. This narrow tube is 1.1â?? (28mm) in diameter making it ideal for direct push where the annulus for seal placement is narrow.
Manufactured by: Solinst
Model: Solinst 403 CMT Multi-Level Well Systems
Services offered for this product
- Sales
- Rental
- Installation
- Calibration
- Maintenance
- IoT Cloud Compatible
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 and 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
Vapour monitoring with special wellhead seals
Helps optimise design and performance assesment of remedial options
Specification
| One CMT System - Two Sizes | |||
|---|---|---|---|
| Features | 7 Channel | 3 Channel | |
| Material | *MDPE | *MDPE | |
| Tubing Diameter | 1.7" (43 mm) | 1.1" (28 mm) | |
| Monitoring Zones | Up to 7 | Up to 3 | |
| Channel Diameter | 6 - Outer pie channels: nominal 0.4" (10 mm) 1 - Center hex channel: nominal 3/8" (9.5 mm) |
3 - Hex channels: nominal 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) | |
| Tubing temperature during installation | –15ºC to +35ºC **** | Port plug temperature during installation | +15°C to +35°C |
| Pressure differential (water levels) | 12.5 inch-pounds torqued port plugs are designed to hold 20 psi (50 ft) of head differential. | ||
| Notes | * Tubing is MDPE; proprietary mix of HDPE and LDPE products. |
| ** Avoid using 'single lifts' of grout, greater than 50 ft in the unsaturated zone. | |
| *** Each CMT coil measures 1 to 2 ft longer than stated. | |
| **** If air temperature is above +35°C, use cold water to cool down the tubing at the port before installing the port plug. |
Related products
FAQ's
How many zones do you wish to monitor?
- If you wish to monitor more than 3 zones then the 7 channel CMT is the system for you
- For 3 zones or less, you can consider the 3 channel CMT, or 7 channel using 2 channels per monitoring zone
What is the type, total depth and diameter of the borehole?
- The borehole must be over 3.25” in diameter for use of the CMT, but less than 3.5” for the 3 channel CMT to seal successfully
- Larger boreholes of up to 6” diameter are preferable when placing sand, bentonite or grout to complete 3 channel or 7 channel installations, ensuring plenty of room toplace the materials around the CMT.
- Centralizers are recommended to prevent the tubing from touching the side of the borehole wall, causing gaps and bridging, which will prevent a proper seal forming
What are you monitoring for?
- If VOCs are the main concern, the Model 408M is the best sampling option due to minimal disturbance of the water column.
- For water level measurement, the Model 102 Water Level Meter with a P4 probe is ideal.
What is the depth to water if you are collecting samples for analysis?
- If the depth is over 25 ft then three sampling options are available: 410 Peristaltic Pump, Mini Inertial Pump and 408M Micro Double Valve Pump.
- Once depth is over 50 ft, the Mini Inertial requires PTFE tubing.
- With depths from 100 ft to 200 ft, the Model 408M is the recommended method for sampling.
How many installations are you considering?
- Total up the depth of each installation to calculate the length of tubing needed
- The 7 Channel is available in 100 ft, 200 ft and 300 ft coils, while the 3 Channel is provided in 100 ft, 200 ft and 500 ft coils.
- If installations are being installed progressively on the same site then only one set of installation tools are required
- A Model 103 Tag Line can be used to confirm that sand and seals have the correct thickness and depth during each installation