07-3081-Spring newslet - Gull Chain of Lakes Association
07-3081-Spring newslet - Gull Chain of Lakes Association
07-3081-Spring newslet - Gull Chain of Lakes Association
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RESERVOIR WATER LEVELS<br />
US Army Corps <strong>of</strong> Engineers<br />
As <strong>of</strong> April 3, 2009, the water level on <strong>Gull</strong> Lake is 1194.02 feet, with a discharge from the dam <strong>of</strong> approximately<br />
550 cfs. Staff at <strong>Gull</strong> Lake measured approximately 7.0 inches <strong>of</strong> snow with 0.7 inches <strong>of</strong> water<br />
content in the snow. It is also estimated that the ice thickness is approximately18-22 inches<br />
CURRENT RESERVOIR OPERATIONS<br />
Due to the 3 inches <strong>of</strong> rain over a 4 day period in the end <strong>of</strong> March,<br />
<strong>Gull</strong> Lake is currently above the summer band. This is 0.5 feet higher<br />
than the 10 year average elevation on this date.<br />
Currently the lake level is falling steady. The plan is to continue releases such that the lake level will continue<br />
to fall and be in line with the elevation the lake should be before the ice goes out and the current<br />
snow in the basin runs <strong>of</strong>f.<br />
Reasons why this operation is being followed are due to:<br />
1. Ice thickness and higher than normal lake elevations can cause serious damage to shoreline and any<br />
items such as boat lifts, docks, etc<br />
2. There is 0.7 inches <strong>of</strong> water content in the snow along with deep frost depths. When warmer<br />
temperatures are seen, this will create run <strong>of</strong>f into <strong>Gull</strong> Lake and therefore increased elevations.<br />
3. The water control plan states that when the pool is above 1194.00 feet the gates will be wide open in<br />
order to bring the reservoir down in order to provide the needed flood control storage.<br />
Number 3 is the most important. The Total Operating Limit for <strong>Gull</strong> Lake is 1194.75 feet. It is absolutely<br />
necessary to regulate the dam in order not to reach this limit. During this last snow melt, the lake level at<br />
<strong>Gull</strong> rose 0.6 feet in just 5 days! So, to say that an elevation <strong>of</strong> 1194.75 feet is not possible would be an<br />
incorrect statement.<br />
At this time the regulation <strong>of</strong> <strong>Gull</strong> Lake Dam is following the Water Control Manual for <strong>Gull</strong> Lake<br />
Reservoir dated January 2003.<br />
MORE INFORMATION<br />
You can visit the Corps <strong>of</strong> Engineers Water Control Web site at www.rivergages.com for more information<br />
on the regulation <strong>of</strong> <strong>Gull</strong> Lake Reservoir. Questions on the regulation <strong>of</strong> the <strong>Gull</strong> Lake reservoir can<br />
be directed to Jodi Kormanik-Sonterre at 651-290-5646 at the St. Paul District Water Control, or Mary Kay<br />
Larson at the <strong>Gull</strong> Lake Dam at 218-829-3334.<br />
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