 In 2006–2007 it had been reported that half of the Kenyan population within the service area of 55 WSPs had access to improved sanitation facilities (this definition includes flush, pour flush toilets connected to a piped system, septic tanks, VIP latrines and pit latrines).In Nairobi, sanitation coverage was about 23% in 2006–2007.The Kenyan Integrated Household Budget Survey of 2006 reported a much higher sanitation coverage 84%, including shared latrines and shallow pit latrines.