Survey Notes
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Total Pages | : 216 |
Release | : 1998 |
Genre | : Geology |
ISBN | : |
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Author | : |
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Total Pages | : 216 |
Release | : 1998 |
Genre | : Geology |
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Author | : Utah Geological and Mineral Survey |
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Total Pages | : 322 |
Release | : 1988 |
Genre | : Geology |
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Author | : Utah Geological and Mineral Survey |
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Total Pages | : 24 |
Release | : 1985 |
Genre | : Geology |
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Author | : Utah Geological and Mineral Survey |
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Total Pages | : |
Release | : 1977 |
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Author | : |
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Total Pages | : 406 |
Release | : 1997 |
Genre | : Geology |
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Author | : Utah Geological and Mineral Survey |
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Total Pages | : 32 |
Release | : 1989 |
Genre | : Geology |
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Author | : Utah Geological and Mineral Survey |
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Total Pages | : 24 |
Release | : 1975 |
Genre | : Geology |
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Author | : Lehi F. Hintze |
Publisher | : Utah Geological Survey |
Total Pages | : 324 |
Release | : 2003 |
Genre | : Science |
ISBN | : 1557916926 |
This bulletin serves not only to introduce the non-geologist to the rich geology of Millard County, but also to provide professional geologists with technical information on the stratigraphy, paleontology, and structural geology of the county. Millard County is unique among Utah’s counties in that it contains an exceptionally complete billion-year geologic record. This happened because until about 200 million years ago the area of present-day Millard County lay near sea level and was awash in shallow marine waters on a continental shelf upon which a stack of fossil-bearing strata more than 6 miles (10 km) thick slowly accumulated. This bulletin summarizes what is known about these strata, as well as younger rocks and surficial deposits in the county, and provides references to scientific papers that describe them in greater detail. Mountains North 30 x 60 (1:100,000-scale) quadrangles. These companion maps and this bulletin portray the geology of Millard County more completely and accurately than any previously published work.
Author | : Mike Lowe |
Publisher | : Utah Geological Survey |
Total Pages | : 20 |
Release | : 1999 |
Genre | : Science |
ISBN | : 9781557916426 |
Many lots in Weber County presently cannot be developed because adverse site characteristics (such as soil that percolates outside acceptable rate ranges or shallow ground water) make them unsuitable for conventional wastewater disposal systems (septic tank soil-absorption systems). The Weber-Morgan District Health Department and the Utah Division of Water Quality have developed designs for alternative wastewater disposal systems that may be used in such areas if hydrogeologic soil conditions are suitable, ground- and surface-water quality will not be degraded, and humans will not be exposed to wastewater pathogens. To demonstrate conformance with these criteria, hydrogeologic and soil studies of proposed sites will need to be conducted and results submitted to the Weber-Morgan District Health Department. Suitable hydrogeologic conditions include (1) site slopes no steeper than 4 percent, (2) soil percolation rates bewteen 60 minutes/inch and 1 minute/inch (5 minutes/inch for both Ogden Canyon and Ogden Valley), (3) depth to seasonal shallow ground water at least 2 feet (0.6 m) below the bottom of soil-absorption drain-field trenches or beds and 1 foot (0.3 m) below the original ground surface (location of trenches and beds with respect to original ground surface varies with alternative system type), (4) depth to bedrock or unsuitable soil at least 4 feet (1.2 m) belowthe bottom of soil-absorption drain-field trenches, (5) topographic and geologic conditions that prevent wastewater from surfacing or reaching surface-water bodies or culinary wells within 250 days ground-water time of travel, (6) ground-water flow available for mixing in the zone of mixing in the aquifer below the site such that average nitrate concentrations will not be increased more than 1 mg/L under the anticipated wastewater loading, and (7) nitrate in high concentration zones (plumes) will not exceed 10 mg/L at any depth or location when it reaches the alternative wastewater disposal system owner's property line, as determined using a defendable solute transport model. Additionally, soil conditions should be such that wastewater will be adequately treated before reaching ground or surface water.
Author | : Utah Geological and Mineralogical Survey |
Publisher | : |
Total Pages | : 500 |
Release | : 1968 |
Genre | : Geology |
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