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Explore our groundwater analysis solutions
Water is a precious resource, we need to ensure our water supplies are maintained
To monitor groundwater levels, we commonly use pressure from which level can be derived. This can also be coupled with water quality instrumentation to measure the physical parameters of the monitoring bore.
Whether you are looking at short-term use or an extended deployment, there is a tailored solution that can be customised for every application.
Level loggers
The In-Situ range of level loggers is designed for long-term deployment and are of a corrosion-resistant titanium construction. The economical Rugged TROLL 100 is an absolute pressure sensor with options of 0–9 m, 0–30 m, and 0–76 m.
The Level TROLL series has the option of absolute and gauged pressure to 693 m, with the addition of open communication protocols allowing for easy integration into PLCs, SCADA systems, and telemetry instrumentation.
Absolute versus gauged sensors
Absolute (non-vented)
This measures all pressure forces detected by the strain gauge, including atmospheric pressure. The back of an absolute pressure sensor is completely sealed from the atmosphere. The front of the absolute pressure sensor responds to both atmospheric pressure as well as the pressure head of water above the sensor and cannot differentiate between the two. Therefore, the absolute system requires a BaroTROLL to monitor atmospheric data.
Gauged (vented)
This eliminates the effects of atmospheric pressure since the vent tube in the vented cable allows atmospheric pressure to be applied to the back of the pressure sensor. There is no post correction needed, but the user must ensure the vent tube of the cable is venting properly and that the desiccant systems are periodically replaced.
Low-flow sampling
There are different sampling techniques involved when retrieving a sample from a well, including passive samplers like hydrasleeves or passive diffusion bags for VOCs, bailers, or portable/dedicated low-flow sampling and 12-volt pumping options.
Our range of bladder pumps for both low-flow portable and dedicated pump systems are used in a variety of locations from Uranium mines, CSG to installations in general sites located in CBDs.
These pumps have been used at some of the deepest sampling sites in the world and have recovered samples from over 1,600 m below ground.
Portable pumps
The QED Sample Pro portable pump delivers highly accurate samples in an easy-to-use design and can run dry without causing damage.
Advantages:
- Highest sample accuracy and precision, especially for sensitive VOCs and dissolved metals
- High reliability, long service life with no-wear components
- Not affected by silt and sand or run-dry operation, no heating
- Totally PFC free
Dedicated pumps
The QED Well Wizard range range of pneumatic bladder pumps operate via cycles of compressed air that squeeze the flexible bladder to displace and release water from the pump, then allow the pump to refill by submergence with minimal disruption of the sample chemistry.
Advantages:
- No overheating of high-speed electric pump motors, which can alter samples and ruin the pumps
- No churning action, like that of bailers or inertial-lift samplers that increase turbidity
- No suction to cause degassing of dissolved volatile contaminants
- Sample location consistency and repeatability
Controller options
MP10 |
MP10H |
MP10UH |
MP15 |
MP50 |
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| Pressure range |
120 PSI | 300 PSI | 500 PSI | 120 PSI | 110 PSI* |
| Max lift | 76 m | 180 m | 300 m | 76 m | 30 m |
| Drive gas required? | Requires drive gas | Requires drive gas | Requires drive gas | In-built gas bottle holder |
In-built compressor |
*30 m pump depth with onboard compressor, 76 m with external drive gas.
Water quality instrumentation
The In-Situ range of water quality instrumentation includes options of fixed sensors and sondes that can be completely customised depending on the application.
The In-Situ range of level and water quality instrumentation consists of a shared ecosystem of cabling, communication, and software. The Vu-Situ application is available on Android and iOS devices and is free to download on the application store.
Conductivity/temperature/depth loggers
The In-Situ Aqua TROLL 100 measures conductivity and temperature, and the In-Situ Aqua TROLL 200 has the added option of absolute or gauged pressure measurements.
As with all In-Situ instrumentation, the Aqua TROLL 100 and 200 have open architecture, allowing easy integration into PLCs, SCADA, dataloggers, and telemetry systems.
In-Situ Aqua TROLL 100 |
In-Situ Aqua TROLL 200 |
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| Vented and non-vented pressure to 500 PSIA and PSIG | — |
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| EC range to 100,000 µS/cm | |
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| Linear, linear average, and event logging |
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Multiparameter sondes
In-Situ has a multiparameter sonde for every application and budget. The Aqua Troll 400 is an entry level sonde which measures temperature and pressure and utilises a fixed temperature/conductivity combination sensor and optical dissolved oxygen and has a field replaceable pH/ORP sensor.
The Aqua TROLL 500 and 600 can be customised to your application and are suitable for short-term spot checking or long-term deployments.
Both instruments can measure the standard parameter set of pH/ORP, optical dissolved oxygen, temperature, conductivity, and turbidity as well as ISEs for nutrient monitoring and fluorometers such as Chlorophyll, Rhodamine and Phycocyanin (BGA-PC), and Phycoerythrin (BGA-PE).
The Bluetooth TROLL comm is compatible with Android and iOS devices and includes a barometric pressure sensor and an expected battery life of 80 hours.
In-Situ Aqua TROLL 400 |
In-Situ Aqua TROLL 500 |
In-Situ Aqua TROLL 600 |
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| Communicates with Win-Situ 5 for PC and VuSitu app for iOS and Android devices | |
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| Standard parameter set PH/ORP, optical dissolved oxygen, temperature, and conductivity | |
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| Suitable for short-term or long-deployment | |
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| Fixed sensors | |
— | — |
| Customisable wet-mateable sensors including turbidity with wiper as an option | — | |
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| ISEs (Chloride, Ammonium, and Nitrate) | — | |
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| Fluorometers | — | |
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| Absolute pressure | (76 m) |
(optional) |
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| Vented pressure | — | |
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| No pressure | — | |
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| Requires external power | |
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| Internal power, memory, and datalogging | — | — | |
Water level meters
Water level meters are used to determine standing water levels generally from a set datum.
There are a variety of different meters available with varying features such as sensitivity, auto-winding and conductivity profiling, and brand preference.
Solinst
Solinst
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Solinst
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Solinst
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Solinst
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| Up to 300 m | Up to 1,500 m | Up to 100 m | Up to 300 m |
| Laser marked PVDF |
Laser marked PVDF |
Laser marked polyurethane |
Laser marked polyurethane |
In-Situ
In-Situ
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In-Situ
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| Up to 400 m | Up to 400 m |
| Kevlar reinforced polyethylene | High tensile steel with polyethylene jacket |
Solinst 122 interface meters
Interface meters are used to determine both light, non-aqueous phase liquids (LNAPLs) and dense, non-aqueous phase liquids (DNAPLs) in groundwater. Many tape options are available.
Solinst 107 TLC meters
Temperature, level, and conductivity (TLC) meters have increased in popularity due to the increase in requirement to profile wells for conductivity.
Solinst carry bags
Padded nylon carrying bags are available, as optional extras. The bag design has a convenient shoulder strap, zippered front pocket, zippered top, and a grommet in the base to prevent moisture build-up.