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A Brief Note On South Carolina Water Impairments

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South Carolina water impairments continue to be a significant problem. Currently there are 330 impaired waters within South Carolina alone. Out of this list there are 15 mitigation projects in progress under the Department of Environmental Health and Control. (DHEC) The scope of this project was to see what, if any impact do droughts have on water impairments. My personal research in conjunction with this project was to research if mitigation project work and what are some of the shortcomings; what the different techniques are, and are they helping to help reduce impaired water. Within our group we had three collogues with strong backgrounds in GIS and statistics and our other three including myself with stronger backgrounds in …show more content…

We choice to use the Palmer index as a measure of drought. The Palmer index uses precipitation and temperature to calculate drought. The index has normal conditions at 0 and progressive numbers to the negative as an increasing drought conditions and numbers to the positive as wetter than normal conditions. Challenges for the project included a method for displaying the two different data types over time. The task for our group was to visually show impaired waters on a map with an overlay of the drought conditions at a certain time period. Results from the project were ambiguous. We were able to show a statistical correlation between drought and water impairments. However, these results were not always consistent due to the variation in the data. Impairment data is recorded every two years; however, the exact time during that year and weather conditions at that moment the samples are taken are not recorded. Other issues with this data were the lack of consistency in where the test stations are located from year to year. Weather data on the other hand is taken on a daily basis from consistent locations and drought data is compiled every month. Trying to merge or over lay these two types of data proved to be difficult. Due to these issues it is import to point out that correlation does not imply causation. Many other variables could affect water impairment at the time of a drought or

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