Phase 4 of the West Hill Sewer Separation Project was awarded to KE Flatwork, Inc., Eldridge, Iowa, on April 5, 2018 in the amount of $6,109,522.45. Phase 4 will be done in three phases over the next three years. Phase 4A will be completed in 2018 and includes 7th Street from Cedar to Locust along with the 700 blocks of Locust Street and Spruce Street. Construction will begin the first week of May at Cedar Street and move block to block up the hill toward Locust.
In 2004 Stanley Consultants Inc. signed a contract with the city to proceed with a study and projects for the West Hill area. On September 5, 2007, the city received a stamped Consent Order from the U.S. Environmental Protection Agency requiring that by December 31, 2010, the city would "submit to EPA and IDNR a report describing the projects needed to complete the separation of the remaining combined portions of the sewer system including the West Hill area". The report "shall include a schedule and estimated cost for completing each project identified therein, and an update on the city's plans for financing the projects". Further, "By DECEMBER 31, 2024, completed all projects described . . . above". Four projects have been identified, each estimated at $15 million to be implemented over the next 14 years to comply with the December 31, 2024 Consent Order date.