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Rare mammoth tusk unearthed in Cub River area

hjnews.com

The fossilized tusk of a Columbian mammoth was unearthed in a private gravel pit in the Cub River area on July 19.

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Cache Valley Aquifer Storage and Recovery-Site Assessment for Millville City, Cache County, Utah

OFR-636 Cache Valley Aquifer, Cache County, Millville City

By: Paul Inkenbrandt

The City of Millville, located in a prime location for aquifer storage and recovery (ASR), is having issues with elevated nitrate in the Glenridge well, a public water supply sourced from the Cache Valley principal aquifer. To alleviate high nitrate, the city performed an initial injection and pumping test using the Glenridge well. Millville injected water from Garr Spring, another public water supply source of which they own water rights, into the Glenridge well for one week at a rate of 500 gallons per minute. They then pumped the well while monitoring geochemistry to determine the effects on the Cache Valley principal aquifer system. The pre-injection nitrate concentration in the Glenridge well was 7.65 mg/l nitrate as nitrogen, and the nitrate concentration after pumping more than 172% of the volume of water injected was 6.52 mg/l nitrate as nitrogen. There is likely some dispersion of the injected spring water via advection in the aquifer.

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OFR-615 Cache Valley Aquifer Storage and Recovery- Phase II

By: Paul Inkenbrandt, Kevin Thomas, and Christian Hardwick

North Logan City modified a gravel excavation site at the mouth of Green Canyon during the spring of 2011 to retain excess flow from the Green Canyon catchment. From August 2011 to March 2012, the Utah Geological Survey (UGS) monitored water flow into the gravel pit, and recorded gravity data and groundwater levels at several sites within a mile of the gravel pit. The UGS observed a significant increase in gravity from August to September in an area southwest of the gravel pit, which indicates an increase in the amount of water in that region from August to September. Based on the measured increase, water is traveling from the gravel pit towards the region of the principal aquifer of Cache Valley.

OFR-615………………..$14.95

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OPEN-FILE REPORT 548

OFR-548COMPILATION OF 1970s WOODWARD-LUNDGREN & ASSOCIATES WASATCH FAULT INVESTIGATION REPORTS AND OBLIQUE AERIAL PHOTOGRAPHY, WASATCH FRONT AND CACHE VALLEY, UTAH AND IDAHO
Steve D. Bowman, Keith Beisner, and Corey Unger

This nine DVD set contains a descriptive 3-page report and digital files created from the Wasatch fault investigation project performed for the Utah Geological and Mineralogical Survey (now the Utah Geological Survey) and the U.S. Geological Survey by Woodward-Lundgren & Associates.  The project was performed to identify surface fault rupture hazard areas along the Wasatch fault and in Cache Valley.  This compilation contains digital scans of the three separate Wasatch fault reports, 47 fault maps, and 1326 oblique aerial photographs (frames).  The digital files include aerial photograph scans in TIFF format, fault maps in TIFF and Adobe PDF formats, and index maps in Google Earth KMZ, GIS shapefile and Adobe PDF formats.  Specialized software (not included) is required to utilize the Google Earth and GIS files, and can be downloaded from the Internet.

This compilation will be useful for professionals involved with paleoseismology investigations; geologic, geotechnical, and environmental assessment and investigation projects; land-use planning and management; government agencies; and the general public and others as an historical archive.  Oblique aerial photography was used to highlight certain topographic features, such as fault scarps and traces, for mapping purposes.

9 DVD set (3 p,. 6 pl., [contains GIS data])

OFR-548……….$74.95

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