The evaluation outlined in this writing is a continuation of an original paper titled Hydro-Climate from Wake County's Perspective. In that study, an analysis of variance (ANOVA) with replication was used to determine that the null hypothesis was rejected and a significant difference existed between the parameters. As a result of that finding, further study was needed to determine where the significant difference in column source variation existed. Ten samples of seventeen test parameters were collected from seven watersheds within the county for a total of 1,190 samples. Previously, it was anticipated that a t-test would be utilized to further evaluate the data. After further analysis, it was determined that an application of descriptive statistics would yield beneficial information specific to this data set and ultimately determine which parameters had a negative impact on the hydro-climate of Wake County. A review of the descriptive statistics indicted that of the 17 parameters; turbidity, iron and manganese were identified as a major concern at the time of testing. Five parameters were identified as having an insignificant impact on Wake County's hydro-climate. The remaining nine parameters did not have an established standard, criteria or toxic concentration. It is anticipated that the pending nutrient management strategy could result in established standards, criteria or toxic concentrations for the remaining nine parameters.
展开▼
