The Health Ministry on Friday deemed water supplies in several communities in central Israel unfit for drinking. Bacterial contamination was found in water in Modi'in, Maccabim-Re'ut, Shilat, Kfar Ruth, Kfar Ha'oranim, Sha'alabim, Mevo Horon, Yavne and Nof Ayalon. The ministry instructed residents of those communities to boil their drinking water until further notice.