Monthly Archives: April 2013

No-Purge Discrete Zone Sampling

No-Purge Discrete Zone Sampling

The Model 425 Discrete Interval Sampler is a no-purge instrument that allows groundwater sampling from specific depths, without mixing of water from different levels. The stainless steel sampler is pressurized before being lowered to prevent water from entering until the desired zone is reached, pressure is released and the sampler fills with water from the discrete zone.

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elk-county-hydrofracking

LTC Levelogger Junior Used to Monitor Hydrofracking in Elk County

The program includes the use of the Solinst LTC Levelogger Junior to monitor changes in water level, temperature, and conductivity in rivers and streams. Conductivity readings provide a general indication of the water quality, while the water level and temperature readings may be used to provide background information when any spikes or significant changes in conductivity readings are noticed.

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Waterloo-Emitters

Waterloo Emitters Provide an Ongoing Solution

An aquifer in Central Ontario became contaminated with BTEX and PCH F1 (Petroleum Hydrocarbons – Fraction #1i) from leaking underground infrastructure linked to a gas station. The groundwater in the aquifer flows between 3 -13 meters a year, as such, a voluntary cleanup of the aquifer was initiated to remediate the plume source, and to stop the dissolved plume phase from moving off-site.

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biofoul-screen

New Biofoul Screen for the Levelogger

The new Biofoul Screen is designed to fit onto the sensor end of any Levelogger model. The natural anti-fouling characteristics of copper protects the sensors from build-up of unwanted microorganisms, plants, algae, or organisms such as barnacles or mussels, which could affect the reliability of the sensor readings.

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Levelogger-Junior-Vernal-Pools

Levelogger Proves Useful in Ecohydrological Research

Vernal wetlands are temporary pools of water that fluctuate seasonally with complex hydrological processes. They receive inputs from precipitation, runoff, and subsurface flow, and are influenced by geology, soil, and climate. This creates a unique habitat for diverse flora, amphibians and insects, including some threatened and endangered species.

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