Wheaton Lake 4 Level Very High

The water levels in Wheaton's Lakes 3 and 4 are very high.

As of 4:00pm today Wheaton's Lake 3 level was very high, above the level of the entry storm sewers and also above the entry of the city's 42 inch storm sewer discharge and entry points which connect Wheaton's Lakes 3 and 4.

I am sending information to the city because I have a concern that the discharge of Lake 4 is restricted. There is a "gate" which the city controls and padlocks. I include several photos of the discharge of Lake 4 and I suspect the gate is not fully open. Meanwhile, the lake continues to fill from Wheaton's lakes upstream, as well as portions of the watershed in Glen Ellyn and the College of DuPage.

As of 3:20pm today, the levels of Lake 3, Lake 4, the Hoddinott pond and College of DuPage's pond 9 were all at the same level. Meanwhile water continues to flow from Wheaton's upstream Lake 2.

The City of Wheaton extercises control over these lakes, and the Village of Glen Ellyn's College of DuPage also directs stormwater from their campus to Lake 4 via a series of underground storm sewers and their Hoddinott pond, which is connected to Wheaton's Lake 4 by a weir. As of today, that weir is completely under water, and so the Hoddinott pond and Lake 4 at at identical levels.

Here is the situation at the discharge of Lake 4 as of 3:30pm today. Wheaton controls the lock which opens a flow control device at the discharge of Lake 4. I am concerned this flow control device is not fully open.

Wheaton's Lake 4 discharge point:

Wheaton's lock which controls the discharge of Lake 4

Interior of Lake 4 discharge:

To substantiate my statement that the levels of the lakes are identical (or nearly so), here is a photo of the first storm sewer entry point after Lake 3. This storm sewer interconnects Lakes 3 and 4. 

I have made videos of some of the conditions and I'll be posting these.