Function:Well washing / Sampling / Analysing / Monitoring.
Advantage:The National Analysis and Testing Center of the Ministry of Ecology and Environment, as well as relevant departments in 28 provinces and cities, are using it as an enforcement instrument.

Introduction
An independently developed product with over 10 technical patents, this groundwater sampler is suitable for wells of various diameters. It is currently in use at the National Analysis and Testing Center of the Ministry of Ecology and Environment, and has been used for three consecutive years as the equipment for groundwater certification examinations.
Basic Flowchart of Groundwater Sampling

Composition
Functions: Groundwater well flushing and sampling (especially suitable for VOC collection)
Advantages: Average 3 minutes of water output, enough to match or surpass imported equipment
Features:
1 ) 3 minutes of water output, surpassing imported equipment; multiple samples can be collected in a day 2~3 wells, the efficiency is surprisingly high.
2 )Throughout the sampling process, there is no volatilization loss or cross-interference; this is the most noteworthy quality assurance.
3 )Standard sampling 70 meters, exceeding imported instruments 10 meters, with 300 meters deep, users continue to use it without any malfunctions.
AML919 Groundwater Sampling System for VOC Sampling and Groundwater Well Purging
The AML919 Groundwater Sampling System is a professional groundwater sampling and well-purging system designed for groundwater monitoring, environmental investigation and groundwater quality sampling, with particular suitability for VOC groundwater sampling.
AML919 integrates groundwater well flushing, sample collection and field monitoring into a practical sampling system. Its design focuses on improving sampling efficiency while reducing the risk of volatilization loss and cross-interference during the sampling process.
The system is developed and manufactured by AIMOLI Environmental Instruments in China and is designed for professional environmental monitoring applications.
1. Main Applications
AML919 is designed for groundwater monitoring wells and environmental sampling projects where representative groundwater samples are required.
Typical applications include:
- Groundwater monitoring
- Groundwater well flushing
- Groundwater sample collection
- VOC groundwater sampling
- Environmental site investigation
- Groundwater quality assessment
- Contaminated-site investigation
- Groundwater monitoring programs
- Environmental laboratory sampling
The system can be used for both routine groundwater sampling and projects that require higher sampling efficiency and controlled sampling procedures.
2. Groundwater Well Flushing and Sampling in One System
AML919 is designed to support two important stages of groundwater monitoring:
Well flushing / purging
↓
Groundwater sample collection
This integrated approach allows field technicians to prepare the monitoring well and collect groundwater samples using the same sampling system.
The system is particularly useful for environmental teams that need to visit multiple monitoring wells during a single working day.
3. Designed for VOC Groundwater Sampling
One of the main application areas of AML919 is VOC groundwater sampling.
Volatile organic compounds can be affected by sampling conditions because excessive agitation, exposure to air or inappropriate handling may influence sample integrity.
AML919 is designed to reduce unnecessary exposure and disturbance during the sampling process.
When used together with appropriate sampling procedures, containers and preservation methods, the system can help reduce the risk of volatilization loss and cross-interference during groundwater sample collection.
For regulated environmental projects, the complete sampling procedure should always follow the applicable local or national sampling standard.
4. Rapid Groundwater Sampling
A key feature of AML919 is its rapid water-output capability.
The system can achieve approximately 3 minutes of water output under suitable operating conditions.
This allows environmental sampling teams to improve field efficiency and potentially complete more monitoring wells within a working day.
For projects involving multiple groundwater monitoring wells, improved sampling efficiency can reduce field time and transportation costs.
Actual sampling time depends on well depth, groundwater conditions, pumping configuration and field procedures.
5. High Sampling Efficiency for Multi-Well Projects
AML919 is designed for projects where multiple groundwater monitoring wells need to be sampled.
Under suitable field conditions, users can sample approximately 2–3 wells per day, depending on well depth, site conditions, required sampling procedures and the time required for each monitoring location.
This makes AML919 particularly suitable for:
- Large groundwater monitoring programs
- Environmental investigation projects
- Industrial site monitoring
- Contaminated-site investigations
- Routine monitoring of multiple wells
The actual number of wells that can be completed in one day depends on the specific project conditions.
6. Reduced Volatilization and Cross-Interference Risk
Groundwater sampling quality is influenced not only by the sampling equipment but also by the complete sampling procedure.
AML919 is designed to minimize unnecessary disturbance during groundwater sampling and reduce the risk of volatilization loss and cross-interference.
This feature is particularly important when collecting samples for VOC analysis.
The system should be operated according to the applicable sampling protocol, and appropriate cleaning, decontamination, sample preservation and container procedures should be followed between sampling locations.
7. Sampling Depth
AML919 has a standard sampling depth of approximately 70 meters.
The system has also been used in field applications at depths of approximately 300 meters.
Deep-well applications depend on the actual well structure, water level, cable configuration, power supply and sampling requirements.
For wells deeper than the standard operating range, customers should provide detailed project information so that AIMOLI can confirm the appropriate configuration.
8. Suitable for Different Well Diameters
AML919 is designed for groundwater monitoring wells with different configurations.
Before selecting the system, users should provide:
- Well diameter
- Well depth
- Water level
- Required sampling depth
- Sampling method
- Required flow rate
- Required sample volume
AIMOLI can evaluate the well conditions and recommend a suitable sampling configuration.
9. Product Development and Technical Experience
AML919 is an independently developed groundwater sampling product with more than 10 technical patents, according to AIMOLI’s product information.
The product has been used by environmental analysis and testing organizations in China and has also been used for groundwater-related certification examination applications.
These application experiences provide practical feedback for the continued development of AIMOLI’s groundwater sampling equipment.
10. Groundwater Sampling Workflow
A typical AML919 groundwater sampling operation can be organized as follows:
Step 1 — Monitoring Well Preparation
Confirm the well depth, water level, well diameter and sampling requirements.
Step 2 — Well Flushing
Use AML919 to flush or purge the monitoring well according to the applicable sampling procedure.
Step 3 — Groundwater Condition Assessment
Monitor the groundwater conditions and determine whether the well is ready for sampling according to the project requirements.
Step 4 — Sample Collection
Collect the required groundwater sample using the AML919 sampling system.
Step 5 — Sample Preservation and Transport
Transfer the collected sample into the appropriate sampling container and follow the required preservation and transportation procedures.
For VOC analysis, sample handling should minimize unnecessary exposure to air and follow the applicable laboratory and regulatory requirements.
11. AML919 Groundwater Sampling System vs. Low-Flow Bladder Pump
A groundwater sampling system and a dedicated low-flow bladder pump can be used for different sampling requirements.
AML919 Groundwater Sampling System
Designed for:
- Well flushing
- Groundwater sampling
- High sampling efficiency
- VOC sampling applications
- Projects involving multiple monitoring wells
AML919 Low-Flow Bladder Pump
Designed specifically around controlled low-flow groundwater sampling applications.
The appropriate system should be selected according to the sampling method, well conditions, target contaminants and applicable monitoring standards.
For customers specifically looking for a bladder pump, see the dedicated AML919 Low-Flow Bladder Pump product page.
12. Key Product Features
Approximately 3-Minute Water Output
The system can achieve approximately 3 minutes of water output under suitable operating conditions, improving field sampling efficiency.
Suitable for VOC Sampling
Designed to reduce unnecessary disturbance during groundwater sampling and help minimize volatilization and cross-interference risks when used with appropriate procedures.
Standard 70 m Sampling Depth
Provides a standard sampling depth of approximately 70 meters.
Field Use at Approximately 300 m
The system has been used in field applications at approximately 300 meters.
Well Flushing and Sampling
Combines groundwater well flushing and sample collection functions in one sampling system.
Designed for Multi-Well Projects
The system is suitable for groundwater monitoring programs involving multiple wells and repeated sampling operations.
Independent Product Development
AML919 is an independently developed AIMOLI product with more than 10 technical patents according to the manufacturer’s product information.
13. Technical Information
| Item | AML919 |
|---|---|
| Product Name | Groundwater Sampling System |
| Main Applications | Groundwater sampling, well flushing, VOC sampling |
| Standard Sampling Depth | Approximately 70 m |
| Demonstrated Field Depth | Approximately 300 m |
| Water Output Time | Approximately 3 minutes under suitable conditions |
| Typical Daily Capacity | Approximately 2–3 wells/day under suitable conditions |
| Main Application | Groundwater monitoring wells |
| Suitable Sampling | Groundwater and VOC sampling |
| Product Development | Independently developed by AIMOLI |
| Technical Patents | More than 10 according to manufacturer information |
Actual performance depends on well depth, well diameter, groundwater conditions, power configuration and sampling procedures. Please contact AIMOLI for project-specific technical confirmation.
14. Advantages for Environmental Sampling Teams
AML919 is designed around the practical problems faced by field sampling teams.
Faster Field Operations
Approximately 3-minute water output can help reduce the time required at each monitoring well under suitable conditions.
Better Sampling Efficiency
The system is designed for projects where multiple monitoring wells need to be sampled during the same field operation.
VOC Sampling Support
The design focuses on reducing unnecessary disturbance during groundwater sampling, which is particularly relevant to VOC sampling applications.
Integrated Well Flushing and Sampling
The same system can support both well flushing and groundwater sample collection.
Deep-Well Capability
The standard sampling depth is approximately 70 meters, with field applications reaching approximately 300 meters.
15. Important Operating Considerations
Groundwater sampling results depend on more than the sampling equipment alone.
For reliable sampling, operators should also consider:
- Well construction
- Groundwater level
- Sampling depth
- Purging procedure
- Flow rate
- Sample container
- Decontamination procedure
- Sample preservation
- Transportation conditions
- Applicable environmental standards
For VOC sampling, minimizing exposure to air and unnecessary agitation is particularly important.
AML919 should therefore be used as part of a complete sampling procedure rather than considered as a standalone guarantee of sample quality.
16. Why Choose AIMOLI Groundwater Sampling Equipment?
AIMOLI Environmental Instruments specializes in groundwater and environmental monitoring equipment.
The product range includes:
- Groundwater sampling systems
- Low-flow bladder pumps
- Groundwater multiparameter analyzers
- Groundwater monitoring instruments
- Downhole inspection cameras
- Environmental field measurement equipment
This allows AIMOLI to provide different types of equipment for groundwater sampling, monitoring and well inspection projects.
As a China-based manufacturer, AIMOLI provides direct technical communication and can evaluate equipment requirements according to well depth, well diameter, sampling method and project conditions.
17. Request AML919 Groundwater Sampling System Information
If you are looking for a groundwater sampling system, groundwater well sampling equipment, or equipment for VOC groundwater sampling, AML919 is designed for professional environmental monitoring applications.
When contacting AIMOLI, please provide:
- Well diameter
- Well depth
- Groundwater level
- Required sampling depth
- Sampling method
- Target application
- Required sample volume
- Number of monitoring wells
AIMOLI can recommend the appropriate AML919 configuration according to your groundwater sampling requirements.
