UNL Environmental Engineering Lesson July 2007 Marie Nielsen Feed Lot Run Off!!! UNL Environmental Engineering Lesson July 2007 Marie Nielsen

College of Engineering Special Programs & Units Faculty Directory: Environmental Engineering** Mid-America Transportation Center** Midwest Roadside Safety Facility Six Sigma Study Abroad** * = Omaha Campus ** = Omaha & Lincoln Campuses Architectural Engineering Biological Systems Engineering Chemical and Biomolecular Engineering Civil Engineering Computer Science & Engineering Computer & Electronics Engineering Construction Management Construction Systems Electrical Engineering Engineering Mechanics Industrial & Management Systems Engineering Mechanical Engineering

Environmental Engineering Slide Show http://www.sos.state.ne.us/business/regsearch/Rules/Environmental_Quality_Dept_of/Title-198/Appendix-A.pdf

Runoff settling basin and holding pond http://www.ces.purdue.edu/extmedia/WQ/WQ-7.html Manure is scraped periodically from feedlots and spread on croplands Good management practices decrease risk of contaminating water supplies

Proper Storage of Liquid waste Can be used as a viable fertilizer Reduces chance of surface and ground water contamination Meets regulations http://www.state.sd.us/denr/DES/Ground/AWMS/AWMS.htm

Pen USDA Research Project Effects of Pond Ash as a Feedlot Pen Surface and Animal Stress-Level on the Prevalence, Levels, and … Project Number: 5438-32000-026-03 Project Type: Trust Start Date: May 01, 2006 End Date: Apr 30, 2008 http://www.ars.usda.gov/research/projects/projects.htm?ACCN_NO=410515

Table of Runoff Curve Numbers (SCS, 1986) http://www.lmnoeng.com/Hydrology/hydrology.htm

Calculating Rainwater peak Runoff Rational Method The formula is: Q=CiA Q = peak runoff rate (cfs) I = is rainfall intensity (in/hr) A = drainage area (acres) C is runoff coefficient (Activity 4.5.3A) http://webmail.nicolet.k12.wi.us/~Jason_Huber/FOV2-00014049/FOV2-00019020/FOV2-0001903C/Rainwater%20Runoff.pdf?FCItemID=S008265FE

Water run off in the community http://edweb.sdsu.edu/sciencetg/elementary/pond/pond4.html (Area of Pavement & Buildings) ____________________________  X 100% = % of rain lost to run off (Area of entire playground)

Heavy Rains Drench G.I. Heavy rains drench G.I. Rainfall early Sunday brought 5.07 inches of water Grand Island had flooded: parking lots streets low-lying areas             

Maxed out G.I. rain detention cell Foreground is Lawrence Lane Behind is maxed out rain detention cell Far back is spillage on to State Street in front of McDonalds occurred http://www.flickr.com/photos/candleshoe/941130784/

Nebraska Weather and Climate Page Image © Mike Hollingshead. Saturday evening, September 16, 2006. Lightning over Omaha. http://www.hprcc.unl.edu/nebraska/

Calculating Storm Water Run-on @ Construction Sites water that comes from off-site locations drains onto construction site Q - run-on flow (m3 /sec) C - run-off coefficient for drainage area (%) i - rainfall intensity (mm/hour) A - area draining onto the site (km2 ) http://www.dot.ca.gov/hq/env/stormwater/publicat/const/Dec_2000.pdf

Teach engineering Resources for K-12 Students http://www.free.ed.gov/resource.cfm?resource_id=1629&subject_id=43 http://www.engineeringpathway.com/ep/ http://www.teachengineering.org/view_activity.php?url=http://www.teachengineering.com/collection/cub_/activities/cub_air/cub_air_lesson03_activity2.xml