This document synthesizes all known historical water quality records for sites in the Ruvu Basin and is a presentation and analysis of new data collected during a water quality survey in October, 2013. Historically, bacterial pollution has been the primary pollutant of concern in the Ruvu Basin. From 2006 through the last major sampling event in 2009, all surface water samples have exhibited high fecal coliform levels ( >200 cfu/mL). The highest levels are consistently found at Duthumi and Kikundi River. The high levels of fecal coliforms coupled with higher than average levels of ammonia at the Duthumi site is a clear indication of human and/or animal waste contamination in the river. During the most current survey in October, 2013, the Ngerengere River has shown higher levels of bacterial contamination than it has shown in the past.