Groundwater Flow Videos

  • Waterloo Emitter Spatial Distribution and Radius of Influence - Video

    Waterloo Emitters can be installed in a series of wells to ensure full coverage of a contaminant plume. Let's take a closer look at the ideal spacing between Emitters. To ensure full plume coverage, the Emitters should be evenly spaced based on their radius of influence. Emitters installed in 4" or 6" wells have a radius of influence of 5 feet, so the maximum space between Emitters would be 10 ...


    By Solinst Canada Ltd.

  • Part 3 of 3 Tectonic Breccia as Barrier to Groundwater Flow Video

    PART 3 of 3 - This video examines an interval from 235 ft - 308 ft (bottom of well) below ground surface in Virginia State Observation Well 009 in Pulaski County as recorded by DEQ Groundwater Characterization staff on 3/25/08. The video examines a portion of the Peak Creek Fault - part of a system of paleozoic faults that displaced bedrock westward in response to continental collision. The ...

  • PWC Mini-Fogger Video 2

    PWC Mini-Fogger shows air flow turbulence in clean room from worker movement. Lights are dimmed and an ultraviolet light is used to help visualize the white fog against a mostly white back ground. The Mini-Fogger creates non-contaminating viewable vapor for air flow studies using 100% distilled or de-ionized ...


    By PWC Technologies, Inc.

  • Waterloo Emitter System Setup and Oxygen Flow - Video

    A single oxygen cylinder can be used to supply multiple Waterloo Emitters connected in series. An oxygen regulator is required for the supply tank to reduce flow pressure to a maximum of 20 psi for silicone tubing Emitters, or 100 psi for LDPE tubing Emitters. A 2 or 3 stage reducer regulator and gauge allows accurate, constant low pressure to be set for the system. Tubing manifolds can be used ...


    By Solinst Canada Ltd.

  • How Double Valve Pumps Provide Quality Groundwater Samples - Video

    The Model 408 Double Valve Pumps are positive displacement, gas drive pumps providing high quality, consistent samples, and excellent VOC (Volatile Organic Compound) sample results. Pumps are available in stainless steel 5/8" diameter, and 1.66" diameter. Portable or dedicated versions are available. They can be fitted with packers to control groundwater flow and limit purge requirements. DVPs ...


    By Solinst Canada Ltd.

  • Waterloo Emitter Enhanced Aerobic Bioremediation - Video

    As oxygen gas flows through the Waterloo Emitter tubing, a concentration gradient is formed between the gas in the Emitter tubing and groundwater. Let's zoom in and take a closer look. In accordance with Fick's Law, oxygen diffuses across the tubing from higher concentration in the tubing, to lower concentration in the groundwater. Diffusion occurs until there is an equal concentration in the ...


    By Solinst Canada Ltd.

  • Borehole Video of Microconduit Flow in Karst Well in Scott County, Virginia PA Video

    This video shows one of 3 water bearing zones in a former production well at Natural Tunnel State Park as logged on 4/1/08 by Virginia Department of Environmental Quality's Groundwater Characterization Program. This cascading water-bearing zone is 175 feet below ground surface and "static" (non-pumping) ater level in the well on this date is 182 feet below ground surface. A set of microconduits ...

  • Achieving Water Quality Standards Through Contaminant Trackdown Studies

    Meeting water quality standards in surface and ground water bodies, as well as discharge flows, can be complicated by the lack of adequate information on the sources of contamination. And making an incomplete or inaccurate assessment of sources contributing to the impairment of water bodies can be costly and time consuming, resulting in a failure to meet or maintain compliance with critical water ...

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