Thursday, October 16, 2008

Drawdown Update - End of Week 1

I think I successfully changed the settings on this blog site to give everyone the ability to leave a comment without having to sign up for a Google account. It should be simple to do.....just click on the "comments" line at the bottom of each blog entry and follow the instructions. You can select "anonymous" on the entry form to keep your identity private.

The drawdown is progressing well despite last Thursday's rain. Unfortunately the weatherman is predicting another round of showers towards the end of this week. Of course I can't really complain about the rain because our area desperately needs it. I just wish Mother Nature had better timing.

If you decide to take a boat out to fish or explore the lake, please exercise extreme caution. Rocks, logs, stumps, and other underwater obstructions are an even greater hazard to boaters when the water level drops below normal. I've also discovered that many property owners, especially in the older sections of the neighborhood, have pipes extending into the lake to feed their irrigation systems. Trolling in the shallow areas along the developed shoreline should be avoided because these pipes may be covered in silt and difficult to see.

Not unexpected, I have observed a steady increase in wildlife activity since the water began to receed. Herons, osprey, hawks, crows, killdeer, muskrat and other wildlife are all taking advantage of the "easy pickin's" provided by the lower water levels. This is a great time to get out and see some unusual sights on the lake. Fishermen in particular will be interested in the locations of stumps, sunken trees and other fish habitat structure. A "tom boy" at heart, I personally have been enjoying this unique opportunity to view an abundance of animal tracks on the mud flats (see photos below).



Sunday, October 12, 2008

Drawdown Begins

Don Ketcham initiated the drawdown process on Saturday (October 11, 2008) after successfully attaching the trash grate on the front of the intake and activating the siphoning system. This will be the first time Emerald Lake has been lowered since I moved to this area two years ago so I personally cannot offer any insights on what to expect in the weeks ahead. Based on his past experience, Don suspects the water level will drop 8 vertical inches a day for the next few days and then more slowly thereafter until it reaches the depth of the intake, which is 4-5 feet below the normal water line. Once the water level reaches this point, suction will be lost on the siphoning system and the lake will begin to refill. Throughout this process water will continue to flow into the lake from the northern channel (Chewacla Creek) and the unnamed stream that crosses under Pebbleshore Drive near the Foxchase sewer lift station. Please keep in mind that the flow rates of these feeder streams and the amount of precipitation we receive will ultimately determine how long it will take for the lake's water level to drop and recover.

If you need to relocate a moored vessel or intend to build or repair a dock or make shoreline modifications, I encourage you to finalize those plans ASAP. Don't forget Design Review Board approval is required before commencing construction of any new or modified structure, including docks. Please contact Jim Vallery for further information.