American Society of Agricultural and Biological Engineers
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Rapid Direct Testing of the Hydraulic Performance of Earthen Manure Impoundments
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org
Citation: Paper number 131690091, 2013 Kansas City, Missouri, July 21 - July 24, 2013. (doi: http://dx.doi.org/10.13031/aim.20131690091) @2013
Authors: Cody R Kurzer, Mary L Siegan, Richard L Burns, Michael A Olson, William Reck
Keywords: 313 technical guidance accelerated testing animal wastes basin best management practices dairy wastes earthen lined structure environmental control environmental equivalency hydraulic conductivity impoundments liners manure lagoon manure storage measureme
Abstract. Historically liquid animal waste storage impoundments were designed and constructed without oversight and documentation. Many are still in use, resulting in a challenge in demonstrating environmental equivalency to current specific discharge standards. In Michigan, the current allowable specific discharge from lined impoundments is 1.0X10-6 cm s-1. (NRCS 313). A rapid, direct seepage meter promises to provide a method to satisfy regulatory requirements that mitigates problems with existing practices. The device appears to provide a reliable method to demonstrate compliance with USDA-NRCS 313 standard, as well as MDEQ and MAEAP environmental requirements, without the burden of taking dairy and swine operations offline to test with existing procedures. The seepage meter has been partially proven in the field, refined to measure changes in the water surface with precision on the order of 0.001 inch (1 mil or 0.00254 cm).
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