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You are here: Home / Portfolio / Geophysical Survey Rescues Town Water Supply

Geophysical Survey Rescues Town Water Supply

portfolio typeCase Historiespdf iconDownload this as PDFPosted on June 22, 2012

EM-34 terrain conductivity map

Challenge

The Town of Remington, Indiana had been experiencing a water shortage in the early 2000s, and the existing water wells were not sufficient to satisfy current and future water needs. Rather than drill randomly chosen locations, Peerless-Midwest recommended that the Remington Town Council choose to conduct a geophysical survey over several hundred acres of land available for exploration on the outskirts of town. Mundell was subsequently subcontracted by Peerless to conduct the survey for the town’s groundwater resources.

Action

Mundell reviewed area borehole data and then performed an area-wide electrical resistivity survey to locate favorable areas to drill. Areas that were represented by clean sand and gravel were observed using EM34 profiles and 2-dimensional resistivity cross-sections, and additional information was gathered using borehole geophysical logging (see inset figure below) in several existing observation wells. With this information, Mundell identified several areas for possible production wells.

Results

Peerless drilled three of the recommended locations identified by Mundell and installed production wells in the two best locations (shown as stars on the above inset figure). Each new production well location encountered more than 20 ft of additional sand and gravel than had not been encountered before, and produced in excess of 800 gpm, double any prior well yields. The production wells are expected to yield at least 300 gpm under sustained pumping conditions.

Borehole Geophysical Well Log

Borehole Geophysical Well Log

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Our Affiliations

- Midwestern States Environmental Consultants Association
- Environmental & Engineering Geophysical Society
- Professional Geologists of Indiana, Inc.
- National Ground Water Association
- American Societies of Chemical / Civil Engineers Engineers without Borders
- Association of Environmental and Engineering Geologists
- Indiana Association for Environmental Professionals
- Geological Society of American
- Indiana Circular Economy Initiative
- Economy of Communion
- Indiana Recycling Coalition

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To ensure that as much warm air as possible is delivered through your central system, check the ductwork and wrap any leaks with duct mastic. Distribution losses (what’s lost while air is transported from your furnace through ductwork to the vents) often amounts to 30%. So, sealing ductwork could increase efficiency and the warm air you receive considerably … keeping you warmer and making your furnace work less.

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