The Inland Empire Utilities Agency (IEUA), Regional Water Recycling Plant No.5 (RP-5) is located in the city of Chino and has been in operation since 2004 (Attachment A). Raw wastewater enters RP-5 through the 42-inch Chino interceptor diversion and 66-inch Kimball interceptor. The interceptors enter the influent junction box and flow through manually-operated isolation gates into two separate wet wells (Shown in Attachment C). The RP-5 influent pump station conveys plant influent flow to the headworks. Once lifted to the headworks, flow proceeds through the entire plant by gravity. Three VFD-controlled, centrifugal pumps located in the IPS wet wells lift the combined flow and convey the raw sewage to the headworks through a 42-inch diameter discharge line. The west wet well holds two pumps (Pump #4 and Pump #3), while the east wet well holds the third pump (Pumps #2), with space for one future pump.