Groundwater is a valuable resource. It supports ecosystems, agriculture, and urban development. It is also the primary source of drinking water for millions of people around the world. Many natural processes can affect groundwater quality. Many human activities can also affect groundwater quality. These human activities include agriculture, mining, and manufacturing.
At CABENO Environmental, we specialize in environmental field services and remediation options. Groundwater sampling is a critical component of our business that helps us protect this valuable resource.
Low-Flow Groundwater Sampling
Low-flow groundwater sampling involves pumping water at a slow, controlled rate to avoid disturbing the natural stratification of the water column. Typically, this rate is between 100 & 500 mL per minute. It is useful for wells with low yield or low hydraulic conductivity, and in situations where high-quality samples (e.g., for VOCs or metals) are required.
At CABENO, we perform low-flow sampling using two main pump types.
Bladder Pump Sampling
Bladder pump sampling uses compressed air to alternately expand and collapse an internal bladder, drawing and discharging groundwater. Water sampled this way is not exposed to ambient air. Benefits of bladder pump sampling include:
- Excellent for collecting VOCs and other sensitive contaminants
- Suitable for low- to moderate-yield wells
- Provides consistent, low-disturbance samples
- Compatible with deeper well installations using air tubing and controllers
Bladder pumps are ideal when precision and sample integrity are top priorities, like in compliance-driven sampling programs.
Peristaltic Pump Sampling
Peristaltic pumps use rotating rollers to compress a flexible tube, creating suction that lifts groundwater from shallow depths. The water is drawn through the tubing and discharged directly into a sample container. Benefits of peristaltic pump sampling include:
- Suited for shallow wells (less than 25 feet)
- Lightweight, portable, and easy to operate in the field
- Cost-effective for routine groundwater monitoring
Peristaltic pumps offer a practical solution for many field situations, particularly when portability and speed are priorities. Though they are less precise than bladder pumps, they are effective in low-complexity applications.
Choosing the Right Groundwater Sampling Method
The right groundwater sampling method depends on a range of factors, including:
- Well construction
- Water chemistry
- Contaminant types
- Regulatory requirements
At CABENO, our field teams are trained to assess each site and select the most appropriate tools and techniques to deliver accurate results with minimal disruption.
Why Choose CABENO for Groundwater Environmental Services?
At CABENO Environmental, we have deep technical expertise in geology, hydrogeology, environmental chemistry, and regulatory compliance. When you call us for groundwater environmental services, we put that knowledge to work.
With industry-leading technological solutions, we support a wide range of facilities, including;
- Solid waste sites
- Industrial properties
- Urgent large-scale projects
Time is a valuable resource, and we recognize the importance of optimizing efficiency for our clients. We aim to provide services that meet the highest quality standards while saving precious time in the field. Through careful planning, streamlined processes, and effective project management, we eliminate unnecessary delays and maximize productivity.
Other than collecting samples, we act as advocates for your site. If we identify issues like free product, gas presence, damaged pumps, or compromised well integrity, we’ll notify you immediately and offer clear, actionable solutions.
Schedule Groundwater Sampling Today
When you need environmental field services, reach out to CABENO for industry-leading expertise and proven results. We will identify and employ the best groundwater sampling method for your job. Call us today at (815) 774-3747 or contact us online to learn more or to schedule groundwater sampling with CABENO Environmental.
