2009 Internal Audit Executive Summary final

City of Los Angeles 2009 Biosolids EMS Interim Audit Summary The City of Los Angeles’ wastewater system serves over four million people in Los Angeles and 27 cities that contract for this public works service. The system is comprised of more than 6,500 miles of sewer pipelines and four wastewater treatment and water reclamation plants that can process over 550 million gallons of flow each day citywide. The City processes, recycles and renews 147 billion gallons of this wastewater annually into 24 billion gallons of recycled water for beneficial water conservation purposes and 245 thousand tons of biosolids a treated commodity. Biosolids are nutrient-rich organic material resulting from the treatment of domestic sewage at wastewater treatment facility and recycled as a soil amendment and fertilizer. The City's biosolids management program is nationally recognized and has received the highest achievement (Platinum level) for biosolids management and environmental stewardship from the National Biosolids Partnership (NBP) that includes the National Association of Clean Water Agencies (NACWA), Water Environment Federation (WEF), and U.S. Environmental Protection Agency (EPA). For more than fourteen years the City of Los Angeles has maintained an environmentally sound biosolids land application program that meets and exceeds all enforceable local, state and federal regulations. For at least twenty years, the city has beneficially reused 100% of all ...