LAFCO OKs out-of-district sewer service to Middle Green Valley project This map shows the area of the Middle Green Valley Specific Plan. FAIRFIELD — Solano County LAFCO commissioners unanimously approved an application Monday that will allow the Fairfield-Suisun Sewer District to provide wastewater service to the Middle Green Valley Specific Plan area. The matter had been continued from last week when technical difficulties did not allow members of the public to call into the meeting with comments. Rich Seithel, the executive officer for the Solano Local Agency Formation Commission, said there were no comments from the public Monday. The commission also approved the annexation of 5 acres at 3928 Sierra Vista Drive into the Rural North Vacaville Water District for water service.