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    Environmental Disaster Scenario

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    Module 5 Disaster Scenario

    Agricultural fallout: A large confined animal feeding operation in Iowa contains a sizable number of swine. When the operation was first permitted, it was much smaller in scale and did not require a permit to carry waste to surface water. As the operation grew, animal waste was both sprayed onto crops at a neighboring farm and transferred into a storage lagoon, but the facility remained unpermitted for discharge to water sources. After an unusually wet spring, the storage lagoon flooded and contaminated the surface water supply which serves a large city nearby.

    Module 5 Disaster Scenario, Worksheet and Rubric

    Module 5 Disaster Scenario - Posted by Howard Rubin at Monday, May 23, 2016 6:38:44 PM

    Agricultural fallout: A large confined animal feeding operation in Iowa contains a sizable number of swine. When the operation was first permitted, it was much smaller in scale and did not require a permit to carry waste to surface water. As the operation grew, animal waste was both sprayed onto crops at a neighboring farm and transferred into a storage lagoon, but the facility remained unpermitted for discharge to water sources. After an unusually wet spring, the storage lagoon flooded and contaminated the surface water supply which serves a large city nearby.
    Student Name:

    Timeliness
    Fully Met
    Partially Met/Good Partially Met/Fair Not Met
    Timeliness Indicators Posted by the deadline Posted 1 day late Posted 2-4 days late Posted 5 or more days late
    Grade Impact No impact 10% reduction in overall assignment score 20% reduction in overall assignment score 0 points

    Part 1: Disaster Response Quiz (Short essay answer)
    You received a disaster scenario from your Instructor. Respond to the following questions as they relate to your scenario.
    Question
    (12 points for each question) Response Score
    Identify at least two relevant agencies that would be involved in this disaster response and their respective roles, in brief.

    Characterize the likely environmental contamination resulting from the disaster. Be sure to describe environmental fate, transport, and persistence, where applicable.

    Identify the population at risk of exposure. Are there any susceptible/sensitive populations of concern?

    Choose one possible environmental exposure from your provided disaster scenario that has the potential to impact human health. Describe how this exposure would be measured in the population at risk. Be sure to consider characteristics of the exposure (e.g., in both the environment and via biological media).

    What might be an appropriate study design to determine whether this exposure is related to excess morbidity or mortality in the population, and why?

    Instructor comments:
    Total Score (60 possible points)

    Quality Indicators Fully Met
    Partially Met/Good Partially Met/Fair Not Met
    Content Quality
    (12 points) All parts of the questions were clearly and completely answered
    AND
    Responses demonstrated critical thinking and analysis

    (12 points) Minor parts of the questions were not clearly answered or were incorrect.
    AND/OR
    Responses demonstrated some critical thinking and analysis
    AND/OR
    Writing was a little unclear (typos, minor issues)

    (10-11 points)
    Larger parts of the questions were not answered or were incorrect
    AND/OR
    Responses were limited/shallow, not demonstrating critical thinking and analysis
    AND/OR
    Writing was unclear (frequent typos, grammatical errors)

    (9 points)
    The responses did not reflect the provided scenario
    AND/OR
    Most or all of the questions were not answered or were incorrect

    (0-8 points)

    Part 2: Odds Ratio

    The following 2 x 2 table represents a study of exposure X and disease Y relating to your provided disaster scenario. Using these data in the table below, calculate the appropriate ratio measure of association for your chosen study design. Interpret the result in terms of the exposure you selected and a health endpoint plausibly related to the exposure.

    Diseased
    Not Diseased

    Exposed 65 120 185
    Not Exposed 20 135 155
    85 255
    Odds ratio:

    Risk ratio:

    Interpretation:

    Quality Indicators Fully Met
    Partially Met/Good Partially Met/Fair Not Met
    Content Quality
    (15 points) Odds ratio and risk ratio correct
    AND
    Interpretation correct

    (14-15 points) Odds ratio and risk ratio correct
    BUT
    Interpretation not fully correct

    (12-13 points)
    Odds ratio and risk correct
    BUT
    One or both interpretations incorrect
    OR
    Odds ratio and interpretation incorrect but risk ratio and interpretation correct
    OR
    Risk ratio and interpretation incorrect but odds ratio and interpretation correct

    (10-11 points)
    Odds ratio and Risk ratio incorrect or missing
    AND
    Interpretation for both incorrect

    (0-9 points)

    Final Score:

    Part 1 Score (60 possible points)

    Part 2 Score (15 possible points)

    Total Score (75 possible points)

    Instructor comments (Timeliness):
    Timeliness Factor (late points deducted):

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    A large confined animal feeding operation in Iowa contains a sizable number of swine. When the operation was first permitted, it was much smaller in scale and did not require a permit to carry waste to surface water. As the operation grew, animal waste was both sprayed onto crops at a neighboring farm and transferred into a storage lagoon, but the facility remained unpermitted for discharge to water sources. After an unusually wet spring, the storage lagoon flooded and contaminated the surface water supply which serves a large city nearby.

    Identify at least two relevant agencies that would be involved in this disaster response and their respective roles, in brief.

    The example I will use for this discussion is the state of Minnesota, and in regard to the relevant agencies that would be involved in the actual cleanup of agricultural chemical contamination from a flooded lagoon that has contaminated the surface water in a city such as St. Paul, Minnesota, this would fall under the authority of the Minnesota Department of Agriculture (MDA). This authority was bestowed upon the agency as a result of the passage of the Minnesota Groundwater Protection Act, which gave the agency exclusive authority to respond to agricultural chemical contamination spills such as the one that occurred in (your) ...

    Solution Summary

    The expert examines the environmental disaster scenario. Timeless factors are provided.

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