In the construction periods in the field will focus hundreds of construction workers. Active Labor and workers ' activities can result in some Eastern environment. Pollution mainly due to discharges from the activities of workers in the construction camp Shack, construction activities and the rainwater flows overflowed on the market built. The amount of sewage workers estimated at 8m3 in the case of workers focuses in the project area is 200 workers, each worker uses 40 litres/day. However the amount of actual sewage may be less than that because only a handful of workers in the shack camp, while most of the workers in hiring and usually just wash your face, wash your hands on construction sites. The composition, nature: domestic wastewater along with the secretion contains many types of disease-causing microorganisms. Secretion consists of feces and urine which contains many infectious pathogens spread easily from the sick to the healthy. Of organic manure and urine can be evaluated through indicators BOD5 or similar indicators (COD and TOC). BOD5 urine about 8.6 g/l BOD5 stools and about 9.6 g/100 g.
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