The sewage network length in Jenin City is about 20,616 m, of which 3,000 m were constructed in the last six months. The rest is old, especially in the old city which was constructed during the Ottoman period. Figure 8.1 shows the sewage network in Jenin City. The total number of manholes in the city is between 1,050 and 1,060. They were built either above or below street level, creating many transportation problems, and have damaged lids.
Storm water is collected in the same sewage networks, which causes flooding in the winter.
Manholes in someplaces are used as a garbage disposal site. Accumulation of this garbage causes blockage of the network and sometimes flooding from these manholes to the adjacent streets. Another serious problem in the Jenin district is that water pipelines are laid adjacent to sewage lines, causing in many cases, wastewater infiltration to the drinking water. In 1996, many people in the Jenin refugee camp were infected with ameba after drinking water polluted with wastewater. Jenin R.C. The collected wastewater is conveyed to the treatment plant located near the residential area in Marj Ibn A'amer.