Analysis of samples for nitrogen and phosphorous are usually done to detect environmental risks. For the detection of public health risks, the samples are mainly analyzed for fecal coliforms and more precisely Escherichia coli. In case the area falls within low risk then no problems exist and the current standards would be enough. More detailed assessment is needed for areas with high risk. A detailed and comprehensive soil, water and site assessment would be needed. The social aspect mainly relates to local factors that can directly affect the operation and maintenance of a certain system. These include, but are not limited to, the local community habits and lifestyle, public health protection, government policies and regulations as well as public acceptance