Supervisors approve English Valley Estates Posted By: adminknia September 4, 2009 @ 4:49 am Today's Local News Tweet Share Email Washington County Supervisors have given the green light to a subdivision near Kalona. English Valley Estates will be located just west of town. Assistant County Engineer Jacob Thorius told supervisors this week, the last thing developers will have to do, is raise the elevation of the site. Supervisors approved the final plat for the project. That means construction can begin as soon as all DNR specifications are met.