Sample site information.
Ladybird lake is located 30.2500833, -97.713611, at Austin, Texas united states; it water shade drains waters to the Colorado River. The area has approximately 500,00o residents. The surrounding land uses include commercial, residential purposes, and recreation purposes. The area is highly impervious, and little water infiltration occurs. Bull Creek is located 30.395 -97.839 at the Austin, texas, united states. It consists of natural features, including flora and fauna, which meanders through Austin town to form a greenbelt. Walter e long lake is located 30.285167-97.596167 at Austin city. It has a highly waterproof cover due to more buildings and paved roads. The land uses include commercial and residential use. The data was collected between the august 2014 and august 2017 in the morning and evening.
Data collection.
The researcher used transverse surveys to attain organized data sampling. Random sampling was applied to the three sites and recorded to articulate equal times for each site’s data collection. Cluster sampling was applied to attain correct data on actual points at specific sites.
Statistical analysis.
Methods of statistical analysis in this study included organizing, summarising, cross-checking, and punching on the computer. After coding, all information was analyzed using various relevant computer programs such as the Statistical Package for Social Scientists (SPSS), excel. Data were summarized and presented in the descriptive form of bar graphs.
Discussion.
The above graphs indicate that the more the watershed has a high waterproof cover, it tends to have much nitrogen concentration in the water quality. Lady Bird Lake with high impervious cover records larger milligrams/liter in each sample collected. The Walter E. long lake records less concentration than the ladybird lake due to the less human activities taking place and average impervious cover. Bull Creek has a minimum nitrogen concentration due to less waterproof cover, which allows the infiltration of water to the underground water. According to (Glick, 2009) the impervious layer impacts the water quality at drainage bodies; the higher the waterproof, the more chances of the quality of water deteriorating.
Works cited.
Glick, Roger H. “Impacts of Impervious Cover and Other Factors on Storm-Water Quality in Austin, Tex.” Journal of Hydrologic Engineering 14.4 (2009): 316-323.
Springhill, Richard C., and Stephen T. Fisk. Basic statistical analysis. Englewood Cliffs, NJ: Prentice-Hall, 1990.