811.5' - Morse Reservoir at an usually high level. This typically occurs following extensive flooding of Cicero Creek.
810.5' - Morse Reservoir after after typical flooding of Cicero Creek.
810' - Typical level of Morse Reservoir during periods of normal streamflow and rainfall.
809.5' - Morse Reservoir is considered full. When level is falling the outlet valve may be opened at any time. When level is rising outlet valve will likely be closed.
806.5' - Lake sections north of 236th Street in Cicero average 2 to 3 deep and maybe limited for use except by pontoons and small fishing boats. Submerged points or sandbars are 2 to 5 feet deep. This depth extends up to several hundred feet offshore. Boats during the Summer 2007 got caught on these shallow areas. Several boats received propeller damage.
806.4' - Lake sections between 236th Street and Carrigan Road are navigable. The point on the east side of the lake at 216th Street just north of the marina has 2-3 foot water extending several hundred feet out into the lake. The first point south of 236th Street on the west side of the lake extends well out into the lake at normal pool of 810 feet. Normal 5 foot depths a few hundred feet offshore are now 2 feet deep and pose a buoy marked boating hazard.
806.3' - The south end of the lake south of Carrigan Road to the dam is all navigable. However, a sandbar on the main body near the first point on the east side of the lake extends over 500 feet out into the lake. This bar averages 5 to 6 foot deep when the lake is 810 feet. Now this sandbar is only 2-3 feet deep and is an unmarked navigation hazard. The "party island" bay in this same lake section averages at best 5 feet deep in many areas. The channel on the west side of the island averages 2-3 feet.
806.2' - The "party island" bay in the southeast end of the lake averages at best 5 feet deep in many areas. The channel on the west side of the island averages 2-3 feet deep and is likely a navigation hazard.
803.5' - Record low level for so early in the year and the month of July. This level reached during Drought of 2012 on July 17, 2012 and 47 days of record to near low rainfall and near record to record temperatures from June 28-July 8. Level has been adjusted down by 0.5 ft due to subsequent datum change.