Israel has systematically blocked the development of Palestine’s wastewater and sanitation sector. Of the 30 Palestinian wastewater treatment plants submitted to the JWC since 1995, only 4 have received approval from Israel. Even then, Israel has repeatedly delayed the construction of Palestinian WWTP’s that have received JWC approval. Israel is now seeking to exploit the resultant lack of Palestinian wastewater treatment plants. In early 2010, the PWA submitted a proposal to the JWC to build a wastewater treatment plant in Ubeidiyeh intended to treat sewerage flowing into Wadi el Nar from Sawahreh Sharqeyeh and surrounding areas in East Jerusalem, and to use the treated wastewater for Palestinian agriculture. Israel has repeatedly refused to approve the project. So don't give me this "we are only trying to help the poor Palestinians" nonsense.
UN agency warns school may be delayed for Palestinian refugees due to lack of funding (AP)
from the article: Dutch engineering giant cancels East Jerusalem project