Wastewater treatment plants are proper means for collecting, analysis, and producing solid and liquid portions of wastewater that coming from houses, industries, floods, or other activities of human kind according to certain standards followed by local, regional, or global authorities. The sequence of wastewater treatment includes physical, chemical, and biological processes. But unfortunately, some times these plants become major resources of pollution and diseases, if they don't follow the means properly. The present study was carried out with that example of wastewater treatment plants which causes a lot of problems and side effects towards village of Khirba Samara and surrounded area, even with other communities and population of Jordan territory.