Alert: Invasive Zebra Mussels confirmed in Lake Orono
in 2020 after the drawdown for dredging, there were two separate instances of possible zebra mussels found in Lake Orono and the DNR, SWCD and City were been notified.
They range from 1/4 in. to 1-1/2 in in size; adults are usually fingernail-sized. They have a D-shaped hinged shell and usually have alternating yellow and brownish stripes, but as you can see in the pictures you may not be able to see the stripes.
Zebra mussels usually attach to hard surfaces (rocks, docks, boats, motors, etc.) below the water’s surface.
If you see any, DO NOT throw in the lake — leave them where they are. Please take a photo, note the location and send an email to email@example.com with the information.
2020 Curly-leaf pondweed control
Herbicide or mechanical treatment of public waters.
Budget: $6,555 – Actual $6,555
2020 – DNR approved 25.5 acres for herbicide treatment. Additional funds provided by a LOIA ($1,468.57), a Sherburne SWCD grant ($2,000), the City of Elk River ($333.33) and a previous year credit ($786.60).
Web licensing and maintenance
OLID membership communication, official document repository, director nomination forms, absentee election ballots, etc.
Budget: $375 – Actual $200
2020 – The public release of our website oronolid.org was on July 31, 2020 .
Alert: Eurasian Watermilfoil confirmed
in Lake Orono
In 2020, Eurasian Watermilfoil was found in Guardian Angels bay. This area was treated on Wed., Aug. 5th.
Remember to Clean, Drain and Dry. Click here for more information
Lake vegetation management
Contract with external consultant(s) expertise to assist in additional surveys, other data collections, effectively analyzing and addressing invasive plants (AIS), native plant overgrowth and algae proliferation and/or meet MN DNR requirements for an AIS permit with a variance (as needed).
2020 – Initial meeting with consultant and Sherburne SWCD. Vegetation plan will be a section in the 2021-2024 Lake Management Plan and water quality, fisheries and future sedimentation control will also be addressed. Funds will be utilized over multiple years to support new plan development.
Increased water quality testing and analysis
Improve water clarity and quality in both Upper and Lower Lake Orono by further pinpointing harm sources and implementing a reduction plan.
Budget: $500 – Actual $735
2019 – Volunteer bi-weekly collection of dissolved oxygen and water temperature data; completed. Analysis by the Sherburne Soil and Water Conservation District (SWCD) determined that these were not factors causing reduced water clarity in Lower Lake Orono. The recommendation was to consider adding True color, Total Suspended Solids and/or Zooplankton testing. Zooplankton testing has been costed.
2020 – True color and Total Suspended Solids chemical water sample collections were added and analysis of the results was completed. Analysis by the Sherburne Soil and Water Conservation District (SWCD) again determined that these were not factors causing reduced water clarity in Lower Lake Orono. The recommendation was to consider adding Zooplankton testing and further examine stormwater inputs to the south basin. Both recommendations are being explored by the Lake Orono Water Quality Committee (LOWQC).