ROCHESTER, MN—Maintenance work on the Lake Zumbro hydro is scheduled to begin on Monday, October 23 and will take approximately 3 days to complete. During this time, both hydro generators will be offline and the lake level will be drawn down to approximately 919 feet dam datum prior to the work starting on October 23.

The work scheduled to be completed includes electric relay work, general cleaning of the facility, and cleaning of the trash gates on the dam by a certified diver. In order for this work to be done safely, the water level will be lowered. The drawdown of water will be done in accordance with the Federal Energy Regulatory Commission and the Minnesota Department of Natural Resources. Water flow will remain through the minimum flow gate in the dam during this maintenance work.

Please use caution when in and around Lake Zumbro during this scheduled maintenance period.

Real-time lake level information, along with Lake Zumbro hydro updates are available on the RPU web site (www.rpu.org).

About Rochester Public Utilities

As the municipal utility of Rochester, Minn., for more than 110 years, RPU provides high-quality and reliable electricity to over 45,000 customers. Water customers number more than 34,000. RPU continually investigates innovative technologies to help customers realize the best value from the services they receive. Current initiatives include fuel cell research, wind power, and photovoltaic offerings.

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